./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/egcd2-ll_valuebound20.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/egcd2-ll_valuebound20.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e587d407128aaafd417211e5ccf66790913a0bc1afeba03ae0cdb578f5831614 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 06:37:31,946 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 06:37:32,008 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-29 06:37:32,013 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 06:37:32,014 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 06:37:32,035 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 06:37:32,036 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 06:37:32,036 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 06:37:32,037 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 06:37:32,038 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 06:37:32,038 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 06:37:32,039 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 06:37:32,040 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 06:37:32,040 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 06:37:32,041 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 06:37:32,041 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 06:37:32,042 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 06:37:32,042 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 06:37:32,043 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 06:37:32,043 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 06:37:32,044 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 06:37:32,045 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 06:37:32,045 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 06:37:32,046 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 06:37:32,046 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-29 06:37:32,046 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-29 06:37:32,047 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 06:37:32,047 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 06:37:32,047 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 06:37:32,047 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 06:37:32,048 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 06:37:32,048 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 06:37:32,049 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 06:37:32,049 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 06:37:32,049 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 06:37:32,050 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 06:37:32,050 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 06:37:32,051 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 06:37:32,051 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 06:37:32,051 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 06:37:32,051 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 06:37:32,052 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 06:37:32,052 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 06:37:32,052 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 06:37:32,052 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e587d407128aaafd417211e5ccf66790913a0bc1afeba03ae0cdb578f5831614 [2023-11-29 06:37:32,298 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 06:37:32,319 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 06:37:32,321 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 06:37:32,323 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 06:37:32,323 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 06:37:32,324 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/nla-digbench-scaling/egcd2-ll_valuebound20.c [2023-11-29 06:37:35,027 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 06:37:35,231 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 06:37:35,232 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/sv-benchmarks/c/nla-digbench-scaling/egcd2-ll_valuebound20.c [2023-11-29 06:37:35,239 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/data/6361498b4/34ef5a6ba71b4f5782b6f758ef33635b/FLAG05c4f526e [2023-11-29 06:37:35,253 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/data/6361498b4/34ef5a6ba71b4f5782b6f758ef33635b [2023-11-29 06:37:35,255 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 06:37:35,257 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 06:37:35,258 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 06:37:35,258 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 06:37:35,266 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 06:37:35,267 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 06:37:35" (1/1) ... [2023-11-29 06:37:35,268 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2044e2fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:37:35, skipping insertion in model container [2023-11-29 06:37:35,268 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 06:37:35" (1/1) ... [2023-11-29 06:37:35,290 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 06:37:35,456 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 06:37:35,465 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 06:37:35,489 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 06:37:35,503 INFO L206 MainTranslator]: Completed translation [2023-11-29 06:37:35,504 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:37:35 WrapperNode [2023-11-29 06:37:35,504 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 06:37:35,505 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 06:37:35,505 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 06:37:35,505 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 06:37:35,511 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:37:35" (1/1) ... [2023-11-29 06:37:35,518 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:37:35" (1/1) ... [2023-11-29 06:37:35,545 INFO L138 Inliner]: procedures = 14, calls = 20, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 149 [2023-11-29 06:37:35,546 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 06:37:35,546 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 06:37:35,546 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 06:37:35,547 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 06:37:35,557 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:37:35" (1/1) ... [2023-11-29 06:37:35,557 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:37:35" (1/1) ... [2023-11-29 06:37:35,560 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:37:35" (1/1) ... [2023-11-29 06:37:35,573 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-11-29 06:37:35,573 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:37:35" (1/1) ... [2023-11-29 06:37:35,573 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:37:35" (1/1) ... [2023-11-29 06:37:35,578 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:37:35" (1/1) ... [2023-11-29 06:37:35,582 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:37:35" (1/1) ... [2023-11-29 06:37:35,583 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:37:35" (1/1) ... [2023-11-29 06:37:35,585 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:37:35" (1/1) ... [2023-11-29 06:37:35,587 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 06:37:35,588 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 06:37:35,588 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 06:37:35,588 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 06:37:35,589 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:37:35" (1/1) ... [2023-11-29 06:37:35,595 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 06:37:35,606 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:37:35,618 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 06:37:35,624 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 06:37:35,649 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 06:37:35,649 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-29 06:37:35,649 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-29 06:37:35,650 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-29 06:37:35,650 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 06:37:35,650 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 06:37:35,650 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-29 06:37:35,650 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-29 06:37:35,709 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 06:37:35,711 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 06:37:36,073 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 06:37:36,099 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 06:37:36,099 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-29 06:37:36,100 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:37:36 BoogieIcfgContainer [2023-11-29 06:37:36,100 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 06:37:36,103 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 06:37:36,103 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 06:37:36,105 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 06:37:36,105 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 06:37:35" (1/3) ... [2023-11-29 06:37:36,106 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7922320d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 06:37:36, skipping insertion in model container [2023-11-29 06:37:36,106 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:37:35" (2/3) ... [2023-11-29 06:37:36,107 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7922320d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 06:37:36, skipping insertion in model container [2023-11-29 06:37:36,107 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:37:36" (3/3) ... [2023-11-29 06:37:36,108 INFO L112 eAbstractionObserver]: Analyzing ICFG egcd2-ll_valuebound20.c [2023-11-29 06:37:36,122 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 06:37:36,123 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 64 error locations. [2023-11-29 06:37:36,168 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 06:37:36,174 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@65dc9108, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 06:37:36,174 INFO L358 AbstractCegarLoop]: Starting to check reachability of 64 error locations. [2023-11-29 06:37:36,178 INFO L276 IsEmpty]: Start isEmpty. Operand has 158 states, 79 states have (on average 1.9113924050632911) internal successors, (151), 144 states have internal predecessors, (151), 12 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-29 06:37:36,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-11-29 06:37:36,184 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:37:36,185 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:37:36,185 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 06:37:36,189 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:37:36,189 INFO L85 PathProgramCache]: Analyzing trace with hash 1634057786, now seen corresponding path program 1 times [2023-11-29 06:37:36,196 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:37:36,196 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2112526332] [2023-11-29 06:37:36,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:37:36,197 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:37:36,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:37:36,344 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:37:36,344 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2112526332] [2023-11-29 06:37:36,345 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-11-29 06:37:36,345 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1211067547] [2023-11-29 06:37:36,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:37:36,345 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:37:36,346 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:37:36,348 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:37:36,351 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-29 06:37:36,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:37:36,419 INFO L262 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-29 06:37:36,424 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:37:36,449 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-11-29 06:37:36,449 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:37:36,450 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1211067547] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:37:36,450 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:37:36,450 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 06:37:36,453 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1143677700] [2023-11-29 06:37:36,453 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:37:36,458 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-29 06:37:36,458 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:37:36,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-29 06:37:36,488 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-29 06:37:36,490 INFO L87 Difference]: Start difference. First operand has 158 states, 79 states have (on average 1.9113924050632911) internal successors, (151), 144 states have internal predecessors, (151), 12 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-29 06:37:36,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:37:36,533 INFO L93 Difference]: Finished difference Result 313 states and 359 transitions. [2023-11-29 06:37:36,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-29 06:37:36,536 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 24 [2023-11-29 06:37:36,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:37:36,545 INFO L225 Difference]: With dead ends: 313 [2023-11-29 06:37:36,546 INFO L226 Difference]: Without dead ends: 154 [2023-11-29 06:37:36,550 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-29 06:37:36,554 INFO L413 NwaCegarLoop]: 166 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 166 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 06:37:36,555 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 166 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 06:37:36,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2023-11-29 06:37:36,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 154. [2023-11-29 06:37:36,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 154 states, 78 states have (on average 1.8205128205128205) internal successors, (142), 141 states have internal predecessors, (142), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-29 06:37:36,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 164 transitions. [2023-11-29 06:37:36,609 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 164 transitions. Word has length 24 [2023-11-29 06:37:36,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:37:36,609 INFO L495 AbstractCegarLoop]: Abstraction has 154 states and 164 transitions. [2023-11-29 06:37:36,610 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-29 06:37:36,610 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 164 transitions. [2023-11-29 06:37:36,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-11-29 06:37:36,612 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:37:36,612 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:37:36,623 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-29 06:37:36,814 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-11-29 06:37:36,814 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 06:37:36,815 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:37:36,815 INFO L85 PathProgramCache]: Analyzing trace with hash 385715966, now seen corresponding path program 1 times [2023-11-29 06:37:36,815 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:37:36,816 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [77161582] [2023-11-29 06:37:36,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:37:36,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:37:36,838 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:37:36,839 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1786243617] [2023-11-29 06:37:36,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:37:36,839 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:37:36,839 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:37:36,840 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:37:36,843 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-29 06:37:36,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:37:36,893 INFO L262 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 16 conjunts are in the unsatisfiable core [2023-11-29 06:37:36,896 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:37:37,024 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-11-29 06:37:37,024 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:37:37,024 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:37:37,024 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [77161582] [2023-11-29 06:37:37,025 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:37:37,025 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1786243617] [2023-11-29 06:37:37,025 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1786243617] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:37:37,025 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:37:37,025 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-29 06:37:37,026 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1900307094] [2023-11-29 06:37:37,026 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:37:37,027 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 06:37:37,027 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:37:37,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 06:37:37,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-11-29 06:37:37,028 INFO L87 Difference]: Start difference. First operand 154 states and 164 transitions. Second operand has 7 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-29 06:37:37,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:37:37,314 INFO L93 Difference]: Finished difference Result 154 states and 164 transitions. [2023-11-29 06:37:37,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 06:37:37,315 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) Word has length 24 [2023-11-29 06:37:37,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:37:37,317 INFO L225 Difference]: With dead ends: 154 [2023-11-29 06:37:37,317 INFO L226 Difference]: Without dead ends: 152 [2023-11-29 06:37:37,317 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-11-29 06:37:37,319 INFO L413 NwaCegarLoop]: 73 mSDtfsCounter, 133 mSDsluCounter, 178 mSDsCounter, 0 mSdLazyCounter, 293 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 251 SdHoareTripleChecker+Invalid, 294 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 293 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 06:37:37,319 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [140 Valid, 251 Invalid, 294 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 293 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 06:37:37,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2023-11-29 06:37:37,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 152. [2023-11-29 06:37:37,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 152 states, 78 states have (on average 1.794871794871795) internal successors, (140), 139 states have internal predecessors, (140), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-29 06:37:37,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 162 transitions. [2023-11-29 06:37:37,335 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 162 transitions. Word has length 24 [2023-11-29 06:37:37,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:37:37,336 INFO L495 AbstractCegarLoop]: Abstraction has 152 states and 162 transitions. [2023-11-29 06:37:37,336 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-29 06:37:37,337 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 162 transitions. [2023-11-29 06:37:37,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-11-29 06:37:37,337 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:37:37,338 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:37:37,343 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-11-29 06:37:37,538 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:37:37,539 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 06:37:37,539 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:37:37,539 INFO L85 PathProgramCache]: Analyzing trace with hash -927706900, now seen corresponding path program 1 times [2023-11-29 06:37:37,539 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:37:37,540 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [690096042] [2023-11-29 06:37:37,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:37:37,540 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:37:37,556 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:37:37,557 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [224996984] [2023-11-29 06:37:37,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:37:37,557 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:37:37,557 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:37:37,558 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:37:37,561 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-29 06:37:37,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:37:37,607 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 16 conjunts are in the unsatisfiable core [2023-11-29 06:37:37,609 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:37:37,727 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-11-29 06:37:37,728 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:37:37,945 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:37:37,945 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [690096042] [2023-11-29 06:37:37,945 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:37:37,945 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [224996984] [2023-11-29 06:37:37,945 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [224996984] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:37:37,946 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:37:37,946 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2023-11-29 06:37:37,946 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1451647983] [2023-11-29 06:37:37,946 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:37:37,946 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 06:37:37,947 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:37:37,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 06:37:37,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2023-11-29 06:37:37,948 INFO L87 Difference]: Start difference. First operand 152 states and 162 transitions. Second operand has 7 states, 5 states have (on average 2.2) internal successors, (11), 6 states have internal predecessors, (11), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-29 06:37:38,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:37:38,209 INFO L93 Difference]: Finished difference Result 152 states and 162 transitions. [2023-11-29 06:37:38,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 06:37:38,210 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 2.2) internal successors, (11), 6 states have internal predecessors, (11), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 25 [2023-11-29 06:37:38,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:37:38,211 INFO L225 Difference]: With dead ends: 152 [2023-11-29 06:37:38,211 INFO L226 Difference]: Without dead ends: 151 [2023-11-29 06:37:38,212 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2023-11-29 06:37:38,213 INFO L413 NwaCegarLoop]: 73 mSDtfsCounter, 260 mSDsluCounter, 162 mSDsCounter, 0 mSdLazyCounter, 283 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 267 SdHoareTripleChecker+Valid, 235 SdHoareTripleChecker+Invalid, 290 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 283 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 06:37:38,214 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [267 Valid, 235 Invalid, 290 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 283 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 06:37:38,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2023-11-29 06:37:38,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 151. [2023-11-29 06:37:38,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 151 states, 78 states have (on average 1.7820512820512822) internal successors, (139), 138 states have internal predecessors, (139), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-29 06:37:38,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 161 transitions. [2023-11-29 06:37:38,227 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 161 transitions. Word has length 25 [2023-11-29 06:37:38,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:37:38,228 INFO L495 AbstractCegarLoop]: Abstraction has 151 states and 161 transitions. [2023-11-29 06:37:38,228 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 2.2) internal successors, (11), 6 states have internal predecessors, (11), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-29 06:37:38,228 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 161 transitions. [2023-11-29 06:37:38,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2023-11-29 06:37:38,229 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:37:38,230 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:37:38,235 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-11-29 06:37:38,430 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:37:38,430 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr52ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 06:37:38,431 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:37:38,431 INFO L85 PathProgramCache]: Analyzing trace with hash 1810640804, now seen corresponding path program 1 times [2023-11-29 06:37:38,431 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:37:38,431 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1909055909] [2023-11-29 06:37:38,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:37:38,431 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:37:38,443 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:37:38,443 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1490533185] [2023-11-29 06:37:38,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:37:38,443 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:37:38,443 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:37:38,444 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:37:38,445 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-29 06:37:38,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:37:38,492 INFO L262 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-29 06:37:38,494 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:37:38,533 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 9 proven. 6 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2023-11-29 06:37:38,533 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:37:38,602 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 9 proven. 6 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2023-11-29 06:37:38,603 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:37:38,603 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1909055909] [2023-11-29 06:37:38,603 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:37:38,603 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1490533185] [2023-11-29 06:37:38,603 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1490533185] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 06:37:38,604 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 06:37:38,604 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 7 [2023-11-29 06:37:38,604 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2055148915] [2023-11-29 06:37:38,604 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 06:37:38,605 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 06:37:38,605 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:37:38,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 06:37:38,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-11-29 06:37:38,606 INFO L87 Difference]: Start difference. First operand 151 states and 161 transitions. Second operand has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 6 states have internal predecessors, (18), 2 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-29 06:37:38,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:37:38,848 INFO L93 Difference]: Finished difference Result 268 states and 284 transitions. [2023-11-29 06:37:38,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 06:37:38,848 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 6 states have internal predecessors, (18), 2 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) Word has length 40 [2023-11-29 06:37:38,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:37:38,850 INFO L225 Difference]: With dead ends: 268 [2023-11-29 06:37:38,850 INFO L226 Difference]: Without dead ends: 238 [2023-11-29 06:37:38,851 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 71 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2023-11-29 06:37:38,852 INFO L413 NwaCegarLoop]: 81 mSDtfsCounter, 301 mSDsluCounter, 169 mSDsCounter, 0 mSdLazyCounter, 245 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 306 SdHoareTripleChecker+Valid, 250 SdHoareTripleChecker+Invalid, 257 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 245 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 06:37:38,852 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [306 Valid, 250 Invalid, 257 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 245 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 06:37:38,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states. [2023-11-29 06:37:38,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 199. [2023-11-29 06:37:38,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 199 states, 122 states have (on average 1.8278688524590163) internal successors, (223), 181 states have internal predecessors, (223), 15 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-11-29 06:37:38,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 253 transitions. [2023-11-29 06:37:38,871 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 253 transitions. Word has length 40 [2023-11-29 06:37:38,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:37:38,872 INFO L495 AbstractCegarLoop]: Abstraction has 199 states and 253 transitions. [2023-11-29 06:37:38,872 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 6 states have internal predecessors, (18), 2 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-29 06:37:38,872 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 253 transitions. [2023-11-29 06:37:38,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2023-11-29 06:37:38,874 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:37:38,874 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:37:38,879 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-11-29 06:37:39,079 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:37:39,080 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 06:37:39,080 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:37:39,080 INFO L85 PathProgramCache]: Analyzing trace with hash 295288537, now seen corresponding path program 1 times [2023-11-29 06:37:39,080 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:37:39,080 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [659632325] [2023-11-29 06:37:39,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:37:39,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:37:39,095 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:37:39,096 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [819723032] [2023-11-29 06:37:39,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:37:39,096 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:37:39,096 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:37:39,097 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:37:39,099 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-29 06:37:39,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:37:39,146 INFO L262 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-29 06:37:39,149 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:37:39,204 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 9 proven. 6 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2023-11-29 06:37:39,204 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:37:39,265 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:37:39,265 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [659632325] [2023-11-29 06:37:39,265 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:37:39,266 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [819723032] [2023-11-29 06:37:39,266 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [819723032] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:37:39,266 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:37:39,266 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2023-11-29 06:37:39,266 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2089748304] [2023-11-29 06:37:39,266 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:37:39,267 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 06:37:39,267 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:37:39,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 06:37:39,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2023-11-29 06:37:39,268 INFO L87 Difference]: Start difference. First operand 199 states and 253 transitions. Second operand has 7 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 6 states have internal predecessors, (17), 2 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-29 06:37:39,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:37:39,632 INFO L93 Difference]: Finished difference Result 239 states and 254 transitions. [2023-11-29 06:37:39,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 06:37:39,632 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 6 states have internal predecessors, (17), 2 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) Word has length 41 [2023-11-29 06:37:39,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:37:39,634 INFO L225 Difference]: With dead ends: 239 [2023-11-29 06:37:39,635 INFO L226 Difference]: Without dead ends: 237 [2023-11-29 06:37:39,635 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2023-11-29 06:37:39,636 INFO L413 NwaCegarLoop]: 79 mSDtfsCounter, 299 mSDsluCounter, 298 mSDsCounter, 0 mSdLazyCounter, 430 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 304 SdHoareTripleChecker+Valid, 377 SdHoareTripleChecker+Invalid, 446 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 430 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 06:37:39,636 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [304 Valid, 377 Invalid, 446 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 430 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 06:37:39,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 237 states. [2023-11-29 06:37:39,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 237 to 199. [2023-11-29 06:37:39,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 199 states, 122 states have (on average 1.8114754098360655) internal successors, (221), 181 states have internal predecessors, (221), 15 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-11-29 06:37:39,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 251 transitions. [2023-11-29 06:37:39,650 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 251 transitions. Word has length 41 [2023-11-29 06:37:39,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:37:39,651 INFO L495 AbstractCegarLoop]: Abstraction has 199 states and 251 transitions. [2023-11-29 06:37:39,651 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 6 states have internal predecessors, (17), 2 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-29 06:37:39,651 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 251 transitions. [2023-11-29 06:37:39,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2023-11-29 06:37:39,652 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:37:39,652 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:37:39,658 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-11-29 06:37:39,857 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:37:39,858 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 06:37:39,858 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:37:39,858 INFO L85 PathProgramCache]: Analyzing trace with hash 564010130, now seen corresponding path program 1 times [2023-11-29 06:37:39,858 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:37:39,858 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1851378159] [2023-11-29 06:37:39,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:37:39,859 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:37:39,868 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:37:39,868 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [976962849] [2023-11-29 06:37:39,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:37:39,869 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:37:39,869 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:37:39,870 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:37:39,871 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-29 06:37:39,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:37:39,922 INFO L262 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-29 06:37:39,925 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:37:39,978 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 9 proven. 6 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2023-11-29 06:37:39,978 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:37:40,042 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:37:40,042 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1851378159] [2023-11-29 06:37:40,042 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:37:40,043 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [976962849] [2023-11-29 06:37:40,043 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [976962849] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:37:40,043 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:37:40,043 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2023-11-29 06:37:40,043 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [70281478] [2023-11-29 06:37:40,043 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:37:40,044 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 06:37:40,044 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:37:40,044 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 06:37:40,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2023-11-29 06:37:40,045 INFO L87 Difference]: Start difference. First operand 199 states and 251 transitions. Second operand has 7 states, 6 states have (on average 3.0) internal successors, (18), 6 states have internal predecessors, (18), 2 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-29 06:37:40,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:37:40,433 INFO L93 Difference]: Finished difference Result 320 states and 341 transitions. [2023-11-29 06:37:40,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 06:37:40,433 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.0) internal successors, (18), 6 states have internal predecessors, (18), 2 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) Word has length 42 [2023-11-29 06:37:40,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:37:40,436 INFO L225 Difference]: With dead ends: 320 [2023-11-29 06:37:40,436 INFO L226 Difference]: Without dead ends: 318 [2023-11-29 06:37:40,436 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2023-11-29 06:37:40,437 INFO L413 NwaCegarLoop]: 81 mSDtfsCounter, 434 mSDsluCounter, 304 mSDsCounter, 0 mSdLazyCounter, 447 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 439 SdHoareTripleChecker+Valid, 385 SdHoareTripleChecker+Invalid, 468 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 447 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 06:37:40,437 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [439 Valid, 385 Invalid, 468 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 447 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 06:37:40,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 318 states. [2023-11-29 06:37:40,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 318 to 245. [2023-11-29 06:37:40,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 245 states, 164 states have (on average 1.8231707317073171) internal successors, (299), 223 states have internal predecessors, (299), 19 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2023-11-29 06:37:40,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 245 states to 245 states and 337 transitions. [2023-11-29 06:37:40,454 INFO L78 Accepts]: Start accepts. Automaton has 245 states and 337 transitions. Word has length 42 [2023-11-29 06:37:40,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:37:40,454 INFO L495 AbstractCegarLoop]: Abstraction has 245 states and 337 transitions. [2023-11-29 06:37:40,454 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.0) internal successors, (18), 6 states have internal predecessors, (18), 2 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-29 06:37:40,454 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states and 337 transitions. [2023-11-29 06:37:40,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2023-11-29 06:37:40,456 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:37:40,456 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:37:40,461 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2023-11-29 06:37:40,657 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:37:40,657 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 06:37:40,658 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:37:40,658 INFO L85 PathProgramCache]: Analyzing trace with hash 304444923, now seen corresponding path program 1 times [2023-11-29 06:37:40,658 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:37:40,658 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [662563731] [2023-11-29 06:37:40,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:37:40,658 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:37:40,670 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:37:40,671 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1384549685] [2023-11-29 06:37:40,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:37:40,671 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:37:40,671 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:37:40,672 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:37:40,675 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-29 06:37:40,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:37:40,724 INFO L262 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-29 06:37:40,726 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:37:40,793 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 6 proven. 9 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2023-11-29 06:37:40,793 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:37:40,917 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:37:40,917 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [662563731] [2023-11-29 06:37:40,917 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:37:40,917 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1384549685] [2023-11-29 06:37:40,917 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1384549685] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:37:40,917 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:37:40,917 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2023-11-29 06:37:40,918 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [761842500] [2023-11-29 06:37:40,918 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:37:40,918 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 06:37:40,918 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:37:40,919 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 06:37:40,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2023-11-29 06:37:40,919 INFO L87 Difference]: Start difference. First operand 245 states and 337 transitions. Second operand has 8 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 7 states have internal predecessors, (19), 3 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2023-11-29 06:37:41,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:37:41,685 INFO L93 Difference]: Finished difference Result 362 states and 383 transitions. [2023-11-29 06:37:41,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 06:37:41,685 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 7 states have internal predecessors, (19), 3 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 43 [2023-11-29 06:37:41,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:37:41,688 INFO L225 Difference]: With dead ends: 362 [2023-11-29 06:37:41,688 INFO L226 Difference]: Without dead ends: 361 [2023-11-29 06:37:41,689 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=58, Invalid=182, Unknown=0, NotChecked=0, Total=240 [2023-11-29 06:37:41,689 INFO L413 NwaCegarLoop]: 85 mSDtfsCounter, 603 mSDsluCounter, 412 mSDsCounter, 0 mSdLazyCounter, 485 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 608 SdHoareTripleChecker+Valid, 497 SdHoareTripleChecker+Invalid, 511 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 485 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-29 06:37:41,690 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [608 Valid, 497 Invalid, 511 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 485 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-29 06:37:41,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 361 states. [2023-11-29 06:37:41,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 361 to 245. [2023-11-29 06:37:41,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 245 states, 164 states have (on average 1.8170731707317074) internal successors, (298), 223 states have internal predecessors, (298), 19 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2023-11-29 06:37:41,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 245 states to 245 states and 336 transitions. [2023-11-29 06:37:41,707 INFO L78 Accepts]: Start accepts. Automaton has 245 states and 336 transitions. Word has length 43 [2023-11-29 06:37:41,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:37:41,707 INFO L495 AbstractCegarLoop]: Abstraction has 245 states and 336 transitions. [2023-11-29 06:37:41,707 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 7 states have internal predecessors, (19), 3 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2023-11-29 06:37:41,707 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states and 336 transitions. [2023-11-29 06:37:41,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2023-11-29 06:37:41,708 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:37:41,709 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:37:41,714 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2023-11-29 06:37:41,910 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2023-11-29 06:37:41,910 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 06:37:41,911 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:37:41,911 INFO L85 PathProgramCache]: Analyzing trace with hash 847858100, now seen corresponding path program 1 times [2023-11-29 06:37:41,911 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:37:41,911 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [941237297] [2023-11-29 06:37:41,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:37:41,911 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:37:41,922 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:37:41,923 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [468260198] [2023-11-29 06:37:41,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:37:41,923 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:37:41,923 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:37:41,924 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:37:41,927 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-29 06:37:41,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:37:41,976 INFO L262 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 16 conjunts are in the unsatisfiable core [2023-11-29 06:37:41,978 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:37:42,097 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 6 proven. 18 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-11-29 06:37:42,098 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:37:42,177 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:37:42,177 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [941237297] [2023-11-29 06:37:42,178 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:37:42,178 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [468260198] [2023-11-29 06:37:42,178 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [468260198] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:37:42,178 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:37:42,178 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2023-11-29 06:37:42,178 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [466637934] [2023-11-29 06:37:42,178 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:37:42,179 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 06:37:42,179 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:37:42,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 06:37:42,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2023-11-29 06:37:42,180 INFO L87 Difference]: Start difference. First operand 245 states and 336 transitions. Second operand has 8 states, 7 states have (on average 2.857142857142857) internal successors, (20), 7 states have internal predecessors, (20), 3 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2023-11-29 06:37:43,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:37:43,117 INFO L93 Difference]: Finished difference Result 318 states and 338 transitions. [2023-11-29 06:37:43,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 06:37:43,117 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 2.857142857142857) internal successors, (20), 7 states have internal predecessors, (20), 3 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 44 [2023-11-29 06:37:43,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:37:43,120 INFO L225 Difference]: With dead ends: 318 [2023-11-29 06:37:43,120 INFO L226 Difference]: Without dead ends: 316 [2023-11-29 06:37:43,120 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2023-11-29 06:37:43,121 INFO L413 NwaCegarLoop]: 58 mSDtfsCounter, 666 mSDsluCounter, 220 mSDsCounter, 0 mSdLazyCounter, 611 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 671 SdHoareTripleChecker+Valid, 278 SdHoareTripleChecker+Invalid, 645 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 611 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-29 06:37:43,121 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [671 Valid, 278 Invalid, 645 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 611 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-29 06:37:43,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 316 states. [2023-11-29 06:37:43,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 316 to 245. [2023-11-29 06:37:43,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 245 states, 164 states have (on average 1.8048780487804879) internal successors, (296), 223 states have internal predecessors, (296), 19 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2023-11-29 06:37:43,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 245 states to 245 states and 334 transitions. [2023-11-29 06:37:43,131 INFO L78 Accepts]: Start accepts. Automaton has 245 states and 334 transitions. Word has length 44 [2023-11-29 06:37:43,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:37:43,131 INFO L495 AbstractCegarLoop]: Abstraction has 245 states and 334 transitions. [2023-11-29 06:37:43,131 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 2.857142857142857) internal successors, (20), 7 states have internal predecessors, (20), 3 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2023-11-29 06:37:43,132 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states and 334 transitions. [2023-11-29 06:37:43,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2023-11-29 06:37:43,132 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:37:43,132 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:37:43,137 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-11-29 06:37:43,333 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:37:43,333 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 06:37:43,334 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:37:43,334 INFO L85 PathProgramCache]: Analyzing trace with hash -251836423, now seen corresponding path program 1 times [2023-11-29 06:37:43,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:37:43,334 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1619263862] [2023-11-29 06:37:43,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:37:43,334 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:37:43,344 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:37:43,344 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [109624804] [2023-11-29 06:37:43,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:37:43,345 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:37:43,345 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:37:43,346 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:37:43,347 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-29 06:37:43,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:37:43,394 INFO L262 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-29 06:37:43,397 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:37:43,516 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 9 proven. 15 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-11-29 06:37:43,516 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:37:43,670 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 9 proven. 6 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2023-11-29 06:37:43,670 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:37:43,670 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1619263862] [2023-11-29 06:37:43,670 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:37:43,671 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [109624804] [2023-11-29 06:37:43,671 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [109624804] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 06:37:43,671 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 06:37:43,671 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5] total 9 [2023-11-29 06:37:43,671 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [692889526] [2023-11-29 06:37:43,671 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 06:37:43,672 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 06:37:43,672 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:37:43,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 06:37:43,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2023-11-29 06:37:43,673 INFO L87 Difference]: Start difference. First operand 245 states and 334 transitions. Second operand has 10 states, 8 states have (on average 4.875) internal successors, (39), 7 states have internal predecessors, (39), 4 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (13), 6 states have call predecessors, (13), 4 states have call successors, (13) [2023-11-29 06:37:45,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:37:45,956 INFO L93 Difference]: Finished difference Result 301 states and 356 transitions. [2023-11-29 06:37:45,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 06:37:45,957 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 8 states have (on average 4.875) internal successors, (39), 7 states have internal predecessors, (39), 4 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (13), 6 states have call predecessors, (13), 4 states have call successors, (13) Word has length 50 [2023-11-29 06:37:45,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:37:45,959 INFO L225 Difference]: With dead ends: 301 [2023-11-29 06:37:45,959 INFO L226 Difference]: Without dead ends: 300 [2023-11-29 06:37:45,959 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2023-11-29 06:37:45,960 INFO L413 NwaCegarLoop]: 97 mSDtfsCounter, 464 mSDsluCounter, 309 mSDsCounter, 0 mSdLazyCounter, 280 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 469 SdHoareTripleChecker+Valid, 406 SdHoareTripleChecker+Invalid, 296 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 280 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2023-11-29 06:37:45,960 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [469 Valid, 406 Invalid, 296 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 280 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2023-11-29 06:37:45,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 300 states. [2023-11-29 06:37:45,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 300 to 252. [2023-11-29 06:37:45,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 252 states, 170 states have (on average 1.7882352941176471) internal successors, (304), 229 states have internal predecessors, (304), 20 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-29 06:37:45,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 252 states to 252 states and 344 transitions. [2023-11-29 06:37:45,971 INFO L78 Accepts]: Start accepts. Automaton has 252 states and 344 transitions. Word has length 50 [2023-11-29 06:37:45,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:37:45,972 INFO L495 AbstractCegarLoop]: Abstraction has 252 states and 344 transitions. [2023-11-29 06:37:45,972 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 8 states have (on average 4.875) internal successors, (39), 7 states have internal predecessors, (39), 4 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (13), 6 states have call predecessors, (13), 4 states have call successors, (13) [2023-11-29 06:37:45,972 INFO L276 IsEmpty]: Start isEmpty. Operand 252 states and 344 transitions. [2023-11-29 06:37:45,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2023-11-29 06:37:45,973 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:37:45,973 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:37:45,979 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2023-11-29 06:37:46,178 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:37:46,178 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 06:37:46,179 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:37:46,179 INFO L85 PathProgramCache]: Analyzing trace with hash 783005563, now seen corresponding path program 1 times [2023-11-29 06:37:46,179 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:37:46,179 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1327426986] [2023-11-29 06:37:46,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:37:46,179 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:37:46,189 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:37:46,189 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [672679082] [2023-11-29 06:37:46,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:37:46,189 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:37:46,190 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:37:46,191 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:37:46,193 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-11-29 06:37:46,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:37:46,236 INFO L262 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-29 06:37:46,237 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:37:46,356 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 9 proven. 15 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-11-29 06:37:46,356 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:37:46,624 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 9 proven. 6 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2023-11-29 06:37:46,624 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:37:46,624 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1327426986] [2023-11-29 06:37:46,624 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:37:46,624 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [672679082] [2023-11-29 06:37:46,624 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [672679082] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 06:37:46,624 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 06:37:46,625 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5] total 9 [2023-11-29 06:37:46,625 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [779967454] [2023-11-29 06:37:46,625 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 06:37:46,626 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 06:37:46,626 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:37:46,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 06:37:46,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2023-11-29 06:37:46,627 INFO L87 Difference]: Start difference. First operand 252 states and 344 transitions. Second operand has 10 states, 8 states have (on average 5.125) internal successors, (41), 7 states have internal predecessors, (41), 4 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (13), 6 states have call predecessors, (13), 4 states have call successors, (13) [2023-11-29 06:37:48,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:37:48,606 INFO L93 Difference]: Finished difference Result 302 states and 355 transitions. [2023-11-29 06:37:48,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 06:37:48,606 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 8 states have (on average 5.125) internal successors, (41), 7 states have internal predecessors, (41), 4 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (13), 6 states have call predecessors, (13), 4 states have call successors, (13) Word has length 51 [2023-11-29 06:37:48,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:37:48,608 INFO L225 Difference]: With dead ends: 302 [2023-11-29 06:37:48,608 INFO L226 Difference]: Without dead ends: 301 [2023-11-29 06:37:48,608 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2023-11-29 06:37:48,609 INFO L413 NwaCegarLoop]: 99 mSDtfsCounter, 577 mSDsluCounter, 416 mSDsCounter, 0 mSdLazyCounter, 363 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 582 SdHoareTripleChecker+Valid, 515 SdHoareTripleChecker+Invalid, 384 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 363 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2023-11-29 06:37:48,609 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [582 Valid, 515 Invalid, 384 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 363 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2023-11-29 06:37:48,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 301 states. [2023-11-29 06:37:48,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 301 to 253. [2023-11-29 06:37:48,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 253 states, 171 states have (on average 1.7719298245614035) internal successors, (303), 230 states have internal predecessors, (303), 20 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-29 06:37:48,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 253 states to 253 states and 343 transitions. [2023-11-29 06:37:48,624 INFO L78 Accepts]: Start accepts. Automaton has 253 states and 343 transitions. Word has length 51 [2023-11-29 06:37:48,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:37:48,624 INFO L495 AbstractCegarLoop]: Abstraction has 253 states and 343 transitions. [2023-11-29 06:37:48,624 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 8 states have (on average 5.125) internal successors, (41), 7 states have internal predecessors, (41), 4 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (13), 6 states have call predecessors, (13), 4 states have call successors, (13) [2023-11-29 06:37:48,625 INFO L276 IsEmpty]: Start isEmpty. Operand 253 states and 343 transitions. [2023-11-29 06:37:48,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2023-11-29 06:37:48,625 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:37:48,626 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:37:48,631 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2023-11-29 06:37:48,830 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:37:48,830 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 06:37:48,830 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:37:48,830 INFO L85 PathProgramCache]: Analyzing trace with hash -1496631237, now seen corresponding path program 1 times [2023-11-29 06:37:48,831 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:37:48,831 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1050327782] [2023-11-29 06:37:48,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:37:48,831 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:37:48,839 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:37:48,840 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1016377200] [2023-11-29 06:37:48,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:37:48,840 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:37:48,840 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:37:48,841 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:37:48,844 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-11-29 06:37:48,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:37:48,893 INFO L262 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-29 06:37:48,895 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:37:48,964 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 6 proven. 9 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2023-11-29 06:37:48,965 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:37:49,108 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 6 proven. 9 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2023-11-29 06:37:49,109 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:37:49,109 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1050327782] [2023-11-29 06:37:49,109 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:37:49,109 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1016377200] [2023-11-29 06:37:49,109 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1016377200] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 06:37:49,109 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 06:37:49,109 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2023-11-29 06:37:49,109 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1314199871] [2023-11-29 06:37:49,110 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 06:37:49,110 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 06:37:49,110 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:37:49,111 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 06:37:49,111 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-11-29 06:37:49,111 INFO L87 Difference]: Start difference. First operand 253 states and 343 transitions. Second operand has 9 states, 8 states have (on average 5.375) internal successors, (43), 7 states have internal predecessors, (43), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (12), 5 states have call predecessors, (12), 5 states have call successors, (12) [2023-11-29 06:37:50,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:37:50,529 INFO L93 Difference]: Finished difference Result 294 states and 346 transitions. [2023-11-29 06:37:50,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 06:37:50,529 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 5.375) internal successors, (43), 7 states have internal predecessors, (43), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (12), 5 states have call predecessors, (12), 5 states have call successors, (12) Word has length 52 [2023-11-29 06:37:50,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:37:50,531 INFO L225 Difference]: With dead ends: 294 [2023-11-29 06:37:50,531 INFO L226 Difference]: Without dead ends: 293 [2023-11-29 06:37:50,532 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2023-11-29 06:37:50,532 INFO L413 NwaCegarLoop]: 99 mSDtfsCounter, 408 mSDsluCounter, 354 mSDsCounter, 0 mSdLazyCounter, 288 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 415 SdHoareTripleChecker+Valid, 453 SdHoareTripleChecker+Invalid, 302 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 288 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-11-29 06:37:50,532 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [415 Valid, 453 Invalid, 302 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 288 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-11-29 06:37:50,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 293 states. [2023-11-29 06:37:50,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 293 to 254. [2023-11-29 06:37:50,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 254 states, 172 states have (on average 1.755813953488372) internal successors, (302), 231 states have internal predecessors, (302), 20 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-29 06:37:50,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 254 states to 254 states and 342 transitions. [2023-11-29 06:37:50,542 INFO L78 Accepts]: Start accepts. Automaton has 254 states and 342 transitions. Word has length 52 [2023-11-29 06:37:50,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:37:50,543 INFO L495 AbstractCegarLoop]: Abstraction has 254 states and 342 transitions. [2023-11-29 06:37:50,543 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 5.375) internal successors, (43), 7 states have internal predecessors, (43), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (12), 5 states have call predecessors, (12), 5 states have call successors, (12) [2023-11-29 06:37:50,543 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states and 342 transitions. [2023-11-29 06:37:50,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2023-11-29 06:37:50,543 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:37:50,543 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:37:50,548 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2023-11-29 06:37:50,744 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:37:50,744 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 06:37:50,744 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:37:50,744 INFO L85 PathProgramCache]: Analyzing trace with hash 849071997, now seen corresponding path program 1 times [2023-11-29 06:37:50,744 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:37:50,745 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2118072890] [2023-11-29 06:37:50,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:37:50,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:37:50,752 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:37:50,752 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1347769412] [2023-11-29 06:37:50,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:37:50,752 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:37:50,752 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:37:50,753 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:37:50,754 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-11-29 06:37:50,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:37:50,795 INFO L262 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-29 06:37:50,802 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:37:50,911 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2023-11-29 06:37:50,911 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:37:51,031 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2023-11-29 06:37:51,031 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:37:51,031 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2118072890] [2023-11-29 06:37:51,031 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:37:51,032 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1347769412] [2023-11-29 06:37:51,032 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1347769412] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 06:37:51,032 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 06:37:51,032 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2023-11-29 06:37:51,032 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [314469503] [2023-11-29 06:37:51,032 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 06:37:51,032 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 06:37:51,032 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:37:51,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 06:37:51,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-11-29 06:37:51,033 INFO L87 Difference]: Start difference. First operand 254 states and 342 transitions. Second operand has 9 states, 8 states have (on average 5.75) internal successors, (46), 9 states have internal predecessors, (46), 5 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (14), 4 states have call predecessors, (14), 5 states have call successors, (14) [2023-11-29 06:37:51,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:37:51,335 INFO L93 Difference]: Finished difference Result 294 states and 345 transitions. [2023-11-29 06:37:51,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 06:37:51,336 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 5.75) internal successors, (46), 9 states have internal predecessors, (46), 5 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (14), 4 states have call predecessors, (14), 5 states have call successors, (14) Word has length 53 [2023-11-29 06:37:51,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:37:51,337 INFO L225 Difference]: With dead ends: 294 [2023-11-29 06:37:51,337 INFO L226 Difference]: Without dead ends: 293 [2023-11-29 06:37:51,338 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2023-11-29 06:37:51,338 INFO L413 NwaCegarLoop]: 99 mSDtfsCounter, 274 mSDsluCounter, 460 mSDsCounter, 0 mSdLazyCounter, 358 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 279 SdHoareTripleChecker+Valid, 559 SdHoareTripleChecker+Invalid, 369 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 358 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 06:37:51,339 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [279 Valid, 559 Invalid, 369 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 358 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 06:37:51,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 293 states. [2023-11-29 06:37:51,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 293 to 255. [2023-11-29 06:37:51,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 255 states, 173 states have (on average 1.739884393063584) internal successors, (301), 232 states have internal predecessors, (301), 20 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-29 06:37:51,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 255 states and 341 transitions. [2023-11-29 06:37:51,349 INFO L78 Accepts]: Start accepts. Automaton has 255 states and 341 transitions. Word has length 53 [2023-11-29 06:37:51,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:37:51,349 INFO L495 AbstractCegarLoop]: Abstraction has 255 states and 341 transitions. [2023-11-29 06:37:51,350 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 5.75) internal successors, (46), 9 states have internal predecessors, (46), 5 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (14), 4 states have call predecessors, (14), 5 states have call successors, (14) [2023-11-29 06:37:51,350 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states and 341 transitions. [2023-11-29 06:37:51,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2023-11-29 06:37:51,350 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:37:51,351 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:37:51,356 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2023-11-29 06:37:51,551 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:37:51,551 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 06:37:51,551 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:37:51,552 INFO L85 PathProgramCache]: Analyzing trace with hash 551428221, now seen corresponding path program 1 times [2023-11-29 06:37:51,552 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:37:51,552 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1230187322] [2023-11-29 06:37:51,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:37:51,552 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:37:51,561 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:37:51,561 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [155213200] [2023-11-29 06:37:51,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:37:51,561 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:37:51,561 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:37:51,562 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:37:51,563 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-11-29 06:37:51,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:37:51,603 INFO L262 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-29 06:37:51,605 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:37:51,700 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 6 proven. 9 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2023-11-29 06:37:51,700 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:37:51,786 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:37:51,786 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1230187322] [2023-11-29 06:37:51,786 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:37:51,786 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [155213200] [2023-11-29 06:37:51,786 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [155213200] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:37:51,787 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:37:51,787 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2023-11-29 06:37:51,787 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [400677254] [2023-11-29 06:37:51,787 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:37:51,787 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 06:37:51,787 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:37:51,788 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 06:37:51,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-11-29 06:37:51,788 INFO L87 Difference]: Start difference. First operand 255 states and 341 transitions. Second operand has 6 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 3 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2023-11-29 06:37:52,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:37:52,002 INFO L93 Difference]: Finished difference Result 289 states and 342 transitions. [2023-11-29 06:37:52,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 06:37:52,003 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 3 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 54 [2023-11-29 06:37:52,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:37:52,005 INFO L225 Difference]: With dead ends: 289 [2023-11-29 06:37:52,005 INFO L226 Difference]: Without dead ends: 288 [2023-11-29 06:37:52,005 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-11-29 06:37:52,006 INFO L413 NwaCegarLoop]: 96 mSDtfsCounter, 261 mSDsluCounter, 258 mSDsCounter, 0 mSdLazyCounter, 278 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 269 SdHoareTripleChecker+Valid, 354 SdHoareTripleChecker+Invalid, 281 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 278 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 06:37:52,007 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [269 Valid, 354 Invalid, 281 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 278 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 06:37:52,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 288 states. [2023-11-29 06:37:52,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 288 to 255. [2023-11-29 06:37:52,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 255 states, 173 states have (on average 1.7283236994219653) internal successors, (299), 232 states have internal predecessors, (299), 20 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-29 06:37:52,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 255 states and 339 transitions. [2023-11-29 06:37:52,022 INFO L78 Accepts]: Start accepts. Automaton has 255 states and 339 transitions. Word has length 54 [2023-11-29 06:37:52,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:37:52,022 INFO L495 AbstractCegarLoop]: Abstraction has 255 states and 339 transitions. [2023-11-29 06:37:52,022 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 3 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2023-11-29 06:37:52,022 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states and 339 transitions. [2023-11-29 06:37:52,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2023-11-29 06:37:52,023 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:37:52,023 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:37:52,028 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2023-11-29 06:37:52,223 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:37:52,224 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 06:37:52,224 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:37:52,224 INFO L85 PathProgramCache]: Analyzing trace with hash -85594241, now seen corresponding path program 1 times [2023-11-29 06:37:52,224 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:37:52,224 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1308733899] [2023-11-29 06:37:52,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:37:52,225 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:37:52,235 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:37:52,235 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1602954102] [2023-11-29 06:37:52,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:37:52,235 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:37:52,236 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:37:52,237 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:37:52,240 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-11-29 06:37:52,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:37:52,292 INFO L262 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-29 06:37:52,294 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:37:52,445 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 9 proven. 15 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-11-29 06:37:52,446 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:37:53,275 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:37:53,275 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1308733899] [2023-11-29 06:37:53,275 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:37:53,275 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1602954102] [2023-11-29 06:37:53,276 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1602954102] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:37:53,276 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:37:53,276 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2023-11-29 06:37:53,276 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [147108186] [2023-11-29 06:37:53,276 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:37:53,276 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 06:37:53,276 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:37:53,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 06:37:53,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2023-11-29 06:37:53,277 INFO L87 Difference]: Start difference. First operand 255 states and 339 transitions. Second operand has 8 states, 6 states have (on average 4.833333333333333) internal successors, (29), 6 states have internal predecessors, (29), 3 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 4 states have call predecessors, (7), 3 states have call successors, (7) [2023-11-29 06:37:55,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:37:55,180 INFO L93 Difference]: Finished difference Result 296 states and 348 transitions. [2023-11-29 06:37:55,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 06:37:55,181 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 4.833333333333333) internal successors, (29), 6 states have internal predecessors, (29), 3 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 4 states have call predecessors, (7), 3 states have call successors, (7) Word has length 55 [2023-11-29 06:37:55,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:37:55,183 INFO L225 Difference]: With dead ends: 296 [2023-11-29 06:37:55,183 INFO L226 Difference]: Without dead ends: 295 [2023-11-29 06:37:55,183 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2023-11-29 06:37:55,184 INFO L413 NwaCegarLoop]: 90 mSDtfsCounter, 217 mSDsluCounter, 338 mSDsCounter, 0 mSdLazyCounter, 419 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 226 SdHoareTripleChecker+Valid, 428 SdHoareTripleChecker+Invalid, 421 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 419 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2023-11-29 06:37:55,184 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [226 Valid, 428 Invalid, 421 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 419 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2023-11-29 06:37:55,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 295 states. [2023-11-29 06:37:55,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 295 to 255. [2023-11-29 06:37:55,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 255 states, 173 states have (on average 1.716763005780347) internal successors, (297), 232 states have internal predecessors, (297), 20 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-29 06:37:55,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 255 states and 337 transitions. [2023-11-29 06:37:55,200 INFO L78 Accepts]: Start accepts. Automaton has 255 states and 337 transitions. Word has length 55 [2023-11-29 06:37:55,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:37:55,200 INFO L495 AbstractCegarLoop]: Abstraction has 255 states and 337 transitions. [2023-11-29 06:37:55,201 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 4.833333333333333) internal successors, (29), 6 states have internal predecessors, (29), 3 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 4 states have call predecessors, (7), 3 states have call successors, (7) [2023-11-29 06:37:55,201 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states and 337 transitions. [2023-11-29 06:37:55,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2023-11-29 06:37:55,201 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:37:55,201 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:37:55,206 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2023-11-29 06:37:55,402 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:37:55,402 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 06:37:55,402 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:37:55,402 INFO L85 PathProgramCache]: Analyzing trace with hash 1585765133, now seen corresponding path program 1 times [2023-11-29 06:37:55,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:37:55,403 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1102414235] [2023-11-29 06:37:55,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:37:55,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:37:55,412 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:37:55,412 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [18823859] [2023-11-29 06:37:55,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:37:55,412 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:37:55,412 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:37:55,413 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:37:55,414 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2023-11-29 06:37:55,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:37:55,461 INFO L262 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-29 06:37:55,463 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:37:55,616 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 3 proven. 21 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-11-29 06:37:55,616 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:37:55,700 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:37:55,701 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1102414235] [2023-11-29 06:37:55,701 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:37:55,701 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [18823859] [2023-11-29 06:37:55,701 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [18823859] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:37:55,701 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:37:55,701 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2023-11-29 06:37:55,701 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1254010327] [2023-11-29 06:37:55,701 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:37:55,702 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 06:37:55,702 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:37:55,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 06:37:55,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2023-11-29 06:37:55,703 INFO L87 Difference]: Start difference. First operand 255 states and 337 transitions. Second operand has 7 states, 6 states have (on average 5.0) internal successors, (30), 6 states have internal predecessors, (30), 4 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 4 states have call successors, (8) [2023-11-29 06:37:56,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:37:56,758 INFO L93 Difference]: Finished difference Result 293 states and 346 transitions. [2023-11-29 06:37:56,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 06:37:56,758 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 5.0) internal successors, (30), 6 states have internal predecessors, (30), 4 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 4 states have call successors, (8) Word has length 61 [2023-11-29 06:37:56,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:37:56,760 INFO L225 Difference]: With dead ends: 293 [2023-11-29 06:37:56,760 INFO L226 Difference]: Without dead ends: 291 [2023-11-29 06:37:56,760 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 93 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2023-11-29 06:37:56,761 INFO L413 NwaCegarLoop]: 84 mSDtfsCounter, 195 mSDsluCounter, 260 mSDsCounter, 0 mSdLazyCounter, 330 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 202 SdHoareTripleChecker+Valid, 344 SdHoareTripleChecker+Invalid, 334 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 330 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-11-29 06:37:56,761 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [202 Valid, 344 Invalid, 334 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 330 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-11-29 06:37:56,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 291 states. [2023-11-29 06:37:56,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 291 to 255. [2023-11-29 06:37:56,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 255 states, 173 states have (on average 1.69364161849711) internal successors, (293), 232 states have internal predecessors, (293), 20 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-29 06:37:56,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 255 states and 333 transitions. [2023-11-29 06:37:56,774 INFO L78 Accepts]: Start accepts. Automaton has 255 states and 333 transitions. Word has length 61 [2023-11-29 06:37:56,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:37:56,775 INFO L495 AbstractCegarLoop]: Abstraction has 255 states and 333 transitions. [2023-11-29 06:37:56,775 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 5.0) internal successors, (30), 6 states have internal predecessors, (30), 4 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 4 states have call successors, (8) [2023-11-29 06:37:56,775 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states and 333 transitions. [2023-11-29 06:37:56,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-11-29 06:37:56,776 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:37:56,776 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:37:56,781 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2023-11-29 06:37:56,976 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2023-11-29 06:37:56,976 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 06:37:56,976 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:37:56,977 INFO L85 PathProgramCache]: Analyzing trace with hash 1914078964, now seen corresponding path program 1 times [2023-11-29 06:37:56,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:37:56,977 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [580101272] [2023-11-29 06:37:56,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:37:56,977 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:37:56,983 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:37:56,984 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1637294762] [2023-11-29 06:37:56,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:37:56,984 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:37:56,984 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:37:56,985 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:37:56,986 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2023-11-29 06:37:57,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:37:57,031 INFO L262 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-29 06:37:57,033 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:37:57,182 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 3 proven. 21 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-11-29 06:37:57,182 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:37:57,303 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:37:57,304 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [580101272] [2023-11-29 06:37:57,304 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:37:57,304 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1637294762] [2023-11-29 06:37:57,304 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1637294762] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:37:57,304 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:37:57,304 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2023-11-29 06:37:57,304 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [332664436] [2023-11-29 06:37:57,304 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:37:57,305 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 06:37:57,305 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:37:57,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 06:37:57,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2023-11-29 06:37:57,305 INFO L87 Difference]: Start difference. First operand 255 states and 333 transitions. Second operand has 7 states, 6 states have (on average 5.166666666666667) internal successors, (31), 6 states have internal predecessors, (31), 4 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 4 states have call successors, (8) [2023-11-29 06:37:58,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:37:58,389 INFO L93 Difference]: Finished difference Result 293 states and 342 transitions. [2023-11-29 06:37:58,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 06:37:58,395 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 5.166666666666667) internal successors, (31), 6 states have internal predecessors, (31), 4 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 4 states have call successors, (8) Word has length 62 [2023-11-29 06:37:58,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:37:58,396 INFO L225 Difference]: With dead ends: 293 [2023-11-29 06:37:58,396 INFO L226 Difference]: Without dead ends: 291 [2023-11-29 06:37:58,397 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2023-11-29 06:37:58,397 INFO L413 NwaCegarLoop]: 82 mSDtfsCounter, 385 mSDsluCounter, 224 mSDsCounter, 0 mSdLazyCounter, 326 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 392 SdHoareTripleChecker+Valid, 306 SdHoareTripleChecker+Invalid, 337 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 326 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-11-29 06:37:58,397 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [392 Valid, 306 Invalid, 337 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 326 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-11-29 06:37:58,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 291 states. [2023-11-29 06:37:58,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 291 to 255. [2023-11-29 06:37:58,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 255 states, 173 states have (on average 1.670520231213873) internal successors, (289), 232 states have internal predecessors, (289), 20 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-29 06:37:58,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 255 states and 329 transitions. [2023-11-29 06:37:58,408 INFO L78 Accepts]: Start accepts. Automaton has 255 states and 329 transitions. Word has length 62 [2023-11-29 06:37:58,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:37:58,408 INFO L495 AbstractCegarLoop]: Abstraction has 255 states and 329 transitions. [2023-11-29 06:37:58,408 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 5.166666666666667) internal successors, (31), 6 states have internal predecessors, (31), 4 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 4 states have call successors, (8) [2023-11-29 06:37:58,408 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states and 329 transitions. [2023-11-29 06:37:58,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2023-11-29 06:37:58,409 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:37:58,409 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:37:58,413 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2023-11-29 06:37:58,609 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:37:58,610 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 06:37:58,610 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:37:58,610 INFO L85 PathProgramCache]: Analyzing trace with hash -793094161, now seen corresponding path program 1 times [2023-11-29 06:37:58,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:37:58,610 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1871911592] [2023-11-29 06:37:58,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:37:58,611 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:37:58,619 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:37:58,619 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1053772480] [2023-11-29 06:37:58,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:37:58,619 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:37:58,619 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:37:58,620 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:37:58,621 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2023-11-29 06:37:58,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:37:58,671 INFO L262 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-29 06:37:58,672 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:37:58,757 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 9 proven. 6 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2023-11-29 06:37:58,757 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:37:58,879 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 9 proven. 6 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2023-11-29 06:37:58,880 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:37:58,880 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1871911592] [2023-11-29 06:37:58,880 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:37:58,880 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1053772480] [2023-11-29 06:37:58,880 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1053772480] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 06:37:58,880 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 06:37:58,880 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2023-11-29 06:37:58,881 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1022879102] [2023-11-29 06:37:58,881 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 06:37:58,881 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 06:37:58,881 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:37:58,882 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 06:37:58,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-11-29 06:37:58,882 INFO L87 Difference]: Start difference. First operand 255 states and 329 transitions. Second operand has 9 states, 8 states have (on average 6.875) internal successors, (55), 7 states have internal predecessors, (55), 3 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (13), 5 states have call predecessors, (13), 3 states have call successors, (13) [2023-11-29 06:38:00,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:38:00,530 INFO L93 Difference]: Finished difference Result 312 states and 358 transitions. [2023-11-29 06:38:00,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 06:38:00,530 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 6.875) internal successors, (55), 7 states have internal predecessors, (55), 3 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (13), 5 states have call predecessors, (13), 3 states have call successors, (13) Word has length 63 [2023-11-29 06:38:00,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:38:00,532 INFO L225 Difference]: With dead ends: 312 [2023-11-29 06:38:00,532 INFO L226 Difference]: Without dead ends: 310 [2023-11-29 06:38:00,532 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2023-11-29 06:38:00,533 INFO L413 NwaCegarLoop]: 79 mSDtfsCounter, 634 mSDsluCounter, 314 mSDsCounter, 0 mSdLazyCounter, 458 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 640 SdHoareTripleChecker+Valid, 393 SdHoareTripleChecker+Invalid, 480 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 458 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-11-29 06:38:00,533 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [640 Valid, 393 Invalid, 480 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 458 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-11-29 06:38:00,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 310 states. [2023-11-29 06:38:00,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 310 to 260. [2023-11-29 06:38:00,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 260 states, 178 states have (on average 1.646067415730337) internal successors, (293), 236 states have internal predecessors, (293), 21 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2023-11-29 06:38:00,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 260 states to 260 states and 335 transitions. [2023-11-29 06:38:00,543 INFO L78 Accepts]: Start accepts. Automaton has 260 states and 335 transitions. Word has length 63 [2023-11-29 06:38:00,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:38:00,544 INFO L495 AbstractCegarLoop]: Abstraction has 260 states and 335 transitions. [2023-11-29 06:38:00,544 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 6.875) internal successors, (55), 7 states have internal predecessors, (55), 3 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (13), 5 states have call predecessors, (13), 3 states have call successors, (13) [2023-11-29 06:38:00,544 INFO L276 IsEmpty]: Start isEmpty. Operand 260 states and 335 transitions. [2023-11-29 06:38:00,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-11-29 06:38:00,544 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:38:00,544 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:38:00,549 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2023-11-29 06:38:00,745 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16,18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:38:00,745 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 06:38:00,745 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:38:00,745 INFO L85 PathProgramCache]: Analyzing trace with hash 1183884886, now seen corresponding path program 1 times [2023-11-29 06:38:00,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:38:00,745 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1179669535] [2023-11-29 06:38:00,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:38:00,746 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:38:00,753 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:38:00,753 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [33592824] [2023-11-29 06:38:00,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:38:00,753 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:38:00,753 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:38:00,754 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:38:00,755 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2023-11-29 06:38:00,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:38:00,798 INFO L262 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-29 06:38:00,799 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:38:00,917 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 3 proven. 12 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2023-11-29 06:38:00,917 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:38:01,075 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 3 proven. 12 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2023-11-29 06:38:01,075 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:38:01,075 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1179669535] [2023-11-29 06:38:01,075 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:38:01,075 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [33592824] [2023-11-29 06:38:01,075 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [33592824] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 06:38:01,076 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 06:38:01,076 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2023-11-29 06:38:01,076 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1928866373] [2023-11-29 06:38:01,076 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 06:38:01,076 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 06:38:01,076 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:38:01,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 06:38:01,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-11-29 06:38:01,077 INFO L87 Difference]: Start difference. First operand 260 states and 335 transitions. Second operand has 9 states, 8 states have (on average 7.125) internal successors, (57), 7 states have internal predecessors, (57), 5 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (15), 5 states have call predecessors, (15), 5 states have call successors, (15) [2023-11-29 06:38:01,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:38:01,427 INFO L93 Difference]: Finished difference Result 310 states and 354 transitions. [2023-11-29 06:38:01,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 06:38:01,427 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 7.125) internal successors, (57), 7 states have internal predecessors, (57), 5 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (15), 5 states have call predecessors, (15), 5 states have call successors, (15) Word has length 64 [2023-11-29 06:38:01,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:38:01,429 INFO L225 Difference]: With dead ends: 310 [2023-11-29 06:38:01,429 INFO L226 Difference]: Without dead ends: 308 [2023-11-29 06:38:01,430 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2023-11-29 06:38:01,430 INFO L413 NwaCegarLoop]: 79 mSDtfsCounter, 615 mSDsluCounter, 243 mSDsCounter, 0 mSdLazyCounter, 362 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 619 SdHoareTripleChecker+Valid, 322 SdHoareTripleChecker+Invalid, 386 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 362 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 06:38:01,431 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [619 Valid, 322 Invalid, 386 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 362 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 06:38:01,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 308 states. [2023-11-29 06:38:01,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 308 to 260. [2023-11-29 06:38:01,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 260 states, 179 states have (on average 1.6145251396648044) internal successors, (289), 236 states have internal predecessors, (289), 21 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2023-11-29 06:38:01,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 260 states to 260 states and 331 transitions. [2023-11-29 06:38:01,447 INFO L78 Accepts]: Start accepts. Automaton has 260 states and 331 transitions. Word has length 64 [2023-11-29 06:38:01,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:38:01,448 INFO L495 AbstractCegarLoop]: Abstraction has 260 states and 331 transitions. [2023-11-29 06:38:01,448 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 7.125) internal successors, (57), 7 states have internal predecessors, (57), 5 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (15), 5 states have call predecessors, (15), 5 states have call successors, (15) [2023-11-29 06:38:01,448 INFO L276 IsEmpty]: Start isEmpty. Operand 260 states and 331 transitions. [2023-11-29 06:38:01,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2023-11-29 06:38:01,448 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:38:01,449 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:38:01,453 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2023-11-29 06:38:01,649 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17,19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:38:01,649 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 06:38:01,649 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:38:01,650 INFO L85 PathProgramCache]: Analyzing trace with hash -1954274095, now seen corresponding path program 1 times [2023-11-29 06:38:01,650 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:38:01,650 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1550336499] [2023-11-29 06:38:01,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:38:01,650 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:38:01,659 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:38:01,659 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1181600188] [2023-11-29 06:38:01,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:38:01,660 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:38:01,660 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:38:01,661 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:38:01,666 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2023-11-29 06:38:01,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:38:01,719 INFO L262 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-29 06:38:01,720 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:38:01,988 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 6 proven. 21 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2023-11-29 06:38:01,988 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:38:10,401 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:38:10,401 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1550336499] [2023-11-29 06:38:10,401 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:38:10,401 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1181600188] [2023-11-29 06:38:10,401 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1181600188] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:38:10,401 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:38:10,401 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2023-11-29 06:38:10,402 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [135521076] [2023-11-29 06:38:10,402 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:38:10,402 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 06:38:10,402 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:38:10,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 06:38:10,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=76, Unknown=2, NotChecked=0, Total=110 [2023-11-29 06:38:10,403 INFO L87 Difference]: Start difference. First operand 260 states and 331 transitions. Second operand has 8 states, 6 states have (on average 5.666666666666667) internal successors, (34), 6 states have internal predecessors, (34), 4 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-11-29 06:38:11,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:38:11,623 INFO L93 Difference]: Finished difference Result 292 states and 340 transitions. [2023-11-29 06:38:11,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 06:38:11,623 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 5.666666666666667) internal successors, (34), 6 states have internal predecessors, (34), 4 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) Word has length 65 [2023-11-29 06:38:11,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:38:11,624 INFO L225 Difference]: With dead ends: 292 [2023-11-29 06:38:11,625 INFO L226 Difference]: Without dead ends: 291 [2023-11-29 06:38:11,625 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 8.3s TimeCoverageRelationStatistics Valid=36, Invalid=94, Unknown=2, NotChecked=0, Total=132 [2023-11-29 06:38:11,625 INFO L413 NwaCegarLoop]: 54 mSDtfsCounter, 366 mSDsluCounter, 147 mSDsCounter, 0 mSdLazyCounter, 448 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 373 SdHoareTripleChecker+Valid, 201 SdHoareTripleChecker+Invalid, 455 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 448 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-11-29 06:38:11,626 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [373 Valid, 201 Invalid, 455 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 448 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-11-29 06:38:11,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 291 states. [2023-11-29 06:38:11,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 291 to 260. [2023-11-29 06:38:11,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 260 states, 179 states have (on average 1.6033519553072626) internal successors, (287), 236 states have internal predecessors, (287), 21 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2023-11-29 06:38:11,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 260 states to 260 states and 329 transitions. [2023-11-29 06:38:11,636 INFO L78 Accepts]: Start accepts. Automaton has 260 states and 329 transitions. Word has length 65 [2023-11-29 06:38:11,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:38:11,636 INFO L495 AbstractCegarLoop]: Abstraction has 260 states and 329 transitions. [2023-11-29 06:38:11,636 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 5.666666666666667) internal successors, (34), 6 states have internal predecessors, (34), 4 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-11-29 06:38:11,637 INFO L276 IsEmpty]: Start isEmpty. Operand 260 states and 329 transitions. [2023-11-29 06:38:11,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2023-11-29 06:38:11,637 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:38:11,637 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:38:11,641 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2023-11-29 06:38:11,837 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:38:11,838 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 06:38:11,838 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:38:11,838 INFO L85 PathProgramCache]: Analyzing trace with hash -452954696, now seen corresponding path program 1 times [2023-11-29 06:38:11,838 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:38:11,838 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1594587620] [2023-11-29 06:38:11,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:38:11,838 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:38:11,844 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:38:11,844 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2047962067] [2023-11-29 06:38:11,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:38:11,845 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:38:11,845 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:38:11,845 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:38:11,846 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2023-11-29 06:38:11,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:38:11,889 INFO L262 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-29 06:38:11,890 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:38:12,033 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 3 proven. 21 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-11-29 06:38:12,034 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:38:12,288 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:38:12,288 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1594587620] [2023-11-29 06:38:12,288 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:38:12,288 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2047962067] [2023-11-29 06:38:12,288 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2047962067] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:38:12,288 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:38:12,288 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2023-11-29 06:38:12,289 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1269379400] [2023-11-29 06:38:12,289 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:38:12,289 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 06:38:12,289 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:38:12,290 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 06:38:12,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2023-11-29 06:38:12,290 INFO L87 Difference]: Start difference. First operand 260 states and 329 transitions. Second operand has 8 states, 7 states have (on average 5.0) internal successors, (35), 7 states have internal predecessors, (35), 4 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 4 states have call successors, (8) [2023-11-29 06:38:13,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:38:13,987 INFO L93 Difference]: Finished difference Result 291 states and 338 transitions. [2023-11-29 06:38:13,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 06:38:13,987 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 5.0) internal successors, (35), 7 states have internal predecessors, (35), 4 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 4 states have call successors, (8) Word has length 66 [2023-11-29 06:38:13,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:38:13,989 INFO L225 Difference]: With dead ends: 291 [2023-11-29 06:38:13,989 INFO L226 Difference]: Without dead ends: 290 [2023-11-29 06:38:13,989 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2023-11-29 06:38:13,990 INFO L413 NwaCegarLoop]: 80 mSDtfsCounter, 490 mSDsluCounter, 226 mSDsCounter, 0 mSdLazyCounter, 402 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 499 SdHoareTripleChecker+Valid, 306 SdHoareTripleChecker+Invalid, 416 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 402 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-11-29 06:38:13,990 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [499 Valid, 306 Invalid, 416 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 402 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2023-11-29 06:38:13,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 290 states. [2023-11-29 06:38:14,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 290 to 260. [2023-11-29 06:38:14,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 260 states, 179 states have (on average 1.5921787709497206) internal successors, (285), 236 states have internal predecessors, (285), 21 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2023-11-29 06:38:14,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 260 states to 260 states and 327 transitions. [2023-11-29 06:38:14,003 INFO L78 Accepts]: Start accepts. Automaton has 260 states and 327 transitions. Word has length 66 [2023-11-29 06:38:14,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:38:14,003 INFO L495 AbstractCegarLoop]: Abstraction has 260 states and 327 transitions. [2023-11-29 06:38:14,003 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 5.0) internal successors, (35), 7 states have internal predecessors, (35), 4 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 4 states have call successors, (8) [2023-11-29 06:38:14,003 INFO L276 IsEmpty]: Start isEmpty. Operand 260 states and 327 transitions. [2023-11-29 06:38:14,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2023-11-29 06:38:14,003 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:38:14,004 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:38:14,008 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2023-11-29 06:38:14,204 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:38:14,204 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 06:38:14,204 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:38:14,204 INFO L85 PathProgramCache]: Analyzing trace with hash 449823759, now seen corresponding path program 1 times [2023-11-29 06:38:14,204 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:38:14,205 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1080128960] [2023-11-29 06:38:14,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:38:14,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:38:14,211 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:38:14,212 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [190034459] [2023-11-29 06:38:14,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:38:14,212 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:38:14,212 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:38:14,213 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:38:14,214 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2023-11-29 06:38:14,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:38:14,258 INFO L262 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 06:38:14,259 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:38:14,285 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2023-11-29 06:38:14,285 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:38:14,286 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:38:14,286 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1080128960] [2023-11-29 06:38:14,286 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:38:14,286 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [190034459] [2023-11-29 06:38:14,286 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [190034459] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:38:14,286 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:38:14,286 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 06:38:14,286 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [923928954] [2023-11-29 06:38:14,286 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:38:14,287 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 06:38:14,287 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:38:14,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 06:38:14,287 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 06:38:14,287 INFO L87 Difference]: Start difference. First operand 260 states and 327 transitions. Second operand has 3 states, 2 states have (on average 16.5) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-11-29 06:38:14,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:38:14,967 INFO L93 Difference]: Finished difference Result 290 states and 336 transitions. [2023-11-29 06:38:14,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 06:38:14,967 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 16.5) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 72 [2023-11-29 06:38:14,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:38:14,969 INFO L225 Difference]: With dead ends: 290 [2023-11-29 06:38:14,969 INFO L226 Difference]: Without dead ends: 286 [2023-11-29 06:38:14,970 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 06:38:14,971 INFO L413 NwaCegarLoop]: 125 mSDtfsCounter, 51 mSDsluCounter, 98 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 223 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-29 06:38:14,971 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 223 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-29 06:38:14,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 286 states. [2023-11-29 06:38:14,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 286 to 263. [2023-11-29 06:38:14,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 263 states, 182 states have (on average 1.5604395604395604) internal successors, (284), 239 states have internal predecessors, (284), 21 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2023-11-29 06:38:14,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 263 states to 263 states and 326 transitions. [2023-11-29 06:38:14,987 INFO L78 Accepts]: Start accepts. Automaton has 263 states and 326 transitions. Word has length 72 [2023-11-29 06:38:14,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:38:14,988 INFO L495 AbstractCegarLoop]: Abstraction has 263 states and 326 transitions. [2023-11-29 06:38:14,988 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 16.5) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-11-29 06:38:14,988 INFO L276 IsEmpty]: Start isEmpty. Operand 263 states and 326 transitions. [2023-11-29 06:38:14,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2023-11-29 06:38:14,989 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:38:14,989 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:38:14,993 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0 [2023-11-29 06:38:15,190 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2023-11-29 06:38:15,190 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 06:38:15,190 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:38:15,190 INFO L85 PathProgramCache]: Analyzing trace with hash -1511060975, now seen corresponding path program 1 times [2023-11-29 06:38:15,190 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:38:15,190 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [49809219] [2023-11-29 06:38:15,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:38:15,191 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:38:15,197 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:38:15,197 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1355200630] [2023-11-29 06:38:15,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:38:15,197 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:38:15,197 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:38:15,198 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:38:15,199 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2023-11-29 06:38:15,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:38:15,244 INFO L262 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 06:38:15,246 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:38:15,358 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2023-11-29 06:38:15,358 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:38:15,358 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:38:15,358 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [49809219] [2023-11-29 06:38:15,358 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:38:15,358 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1355200630] [2023-11-29 06:38:15,358 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1355200630] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:38:15,358 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:38:15,358 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 06:38:15,358 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [264132215] [2023-11-29 06:38:15,359 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:38:15,359 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 06:38:15,359 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:38:15,359 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 06:38:15,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 06:38:15,359 INFO L87 Difference]: Start difference. First operand 263 states and 326 transitions. Second operand has 4 states, 3 states have (on average 11.666666666666666) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-11-29 06:38:15,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:38:15,511 INFO L93 Difference]: Finished difference Result 294 states and 338 transitions. [2023-11-29 06:38:15,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 06:38:15,512 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 11.666666666666666) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 74 [2023-11-29 06:38:15,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:38:15,514 INFO L225 Difference]: With dead ends: 294 [2023-11-29 06:38:15,514 INFO L226 Difference]: Without dead ends: 293 [2023-11-29 06:38:15,514 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 06:38:15,515 INFO L413 NwaCegarLoop]: 120 mSDtfsCounter, 112 mSDsluCounter, 103 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 223 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 06:38:15,515 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [113 Valid, 223 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 06:38:15,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 293 states. [2023-11-29 06:38:15,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 293 to 263. [2023-11-29 06:38:15,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 263 states, 182 states have (on average 1.5494505494505495) internal successors, (282), 239 states have internal predecessors, (282), 21 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2023-11-29 06:38:15,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 263 states to 263 states and 324 transitions. [2023-11-29 06:38:15,527 INFO L78 Accepts]: Start accepts. Automaton has 263 states and 324 transitions. Word has length 74 [2023-11-29 06:38:15,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:38:15,527 INFO L495 AbstractCegarLoop]: Abstraction has 263 states and 324 transitions. [2023-11-29 06:38:15,527 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 11.666666666666666) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-11-29 06:38:15,527 INFO L276 IsEmpty]: Start isEmpty. Operand 263 states and 324 transitions. [2023-11-29 06:38:15,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2023-11-29 06:38:15,528 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:38:15,528 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:38:15,533 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Ended with exit code 0 [2023-11-29 06:38:15,728 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2023-11-29 06:38:15,728 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 06:38:15,729 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:38:15,729 INFO L85 PathProgramCache]: Analyzing trace with hash 401750145, now seen corresponding path program 1 times [2023-11-29 06:38:15,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:38:15,729 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1326557328] [2023-11-29 06:38:15,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:38:15,729 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:38:15,735 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:38:15,736 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [195567909] [2023-11-29 06:38:15,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:38:15,736 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:38:15,736 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:38:15,737 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:38:15,737 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2023-11-29 06:38:15,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:38:15,782 INFO L262 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-29 06:38:15,783 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:38:15,862 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2023-11-29 06:38:15,862 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:38:15,862 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:38:15,862 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1326557328] [2023-11-29 06:38:15,863 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:38:15,863 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [195567909] [2023-11-29 06:38:15,863 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [195567909] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:38:15,863 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:38:15,863 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 06:38:15,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1374699676] [2023-11-29 06:38:15,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:38:15,863 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 06:38:15,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:38:15,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 06:38:15,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-29 06:38:15,864 INFO L87 Difference]: Start difference. First operand 263 states and 324 transitions. Second operand has 6 states, 5 states have (on average 7.8) internal successors, (39), 6 states have internal predecessors, (39), 3 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2023-11-29 06:38:16,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:38:16,013 INFO L93 Difference]: Finished difference Result 293 states and 336 transitions. [2023-11-29 06:38:16,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 06:38:16,013 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 7.8) internal successors, (39), 6 states have internal predecessors, (39), 3 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 75 [2023-11-29 06:38:16,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:38:16,015 INFO L225 Difference]: With dead ends: 293 [2023-11-29 06:38:16,015 INFO L226 Difference]: Without dead ends: 292 [2023-11-29 06:38:16,015 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-11-29 06:38:16,016 INFO L413 NwaCegarLoop]: 116 mSDtfsCounter, 110 mSDsluCounter, 314 mSDsCounter, 0 mSdLazyCounter, 206 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 430 SdHoareTripleChecker+Invalid, 207 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 206 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 06:38:16,016 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [111 Valid, 430 Invalid, 207 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 206 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 06:38:16,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 292 states. [2023-11-29 06:38:16,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 292 to 263. [2023-11-29 06:38:16,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 263 states, 182 states have (on average 1.5384615384615385) internal successors, (280), 239 states have internal predecessors, (280), 21 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2023-11-29 06:38:16,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 263 states to 263 states and 322 transitions. [2023-11-29 06:38:16,028 INFO L78 Accepts]: Start accepts. Automaton has 263 states and 322 transitions. Word has length 75 [2023-11-29 06:38:16,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:38:16,028 INFO L495 AbstractCegarLoop]: Abstraction has 263 states and 322 transitions. [2023-11-29 06:38:16,028 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 7.8) internal successors, (39), 6 states have internal predecessors, (39), 3 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2023-11-29 06:38:16,028 INFO L276 IsEmpty]: Start isEmpty. Operand 263 states and 322 transitions. [2023-11-29 06:38:16,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2023-11-29 06:38:16,028 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:38:16,029 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:38:16,033 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2023-11-29 06:38:16,229 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2023-11-29 06:38:16,229 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 06:38:16,229 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:38:16,229 INFO L85 PathProgramCache]: Analyzing trace with hash -430647277, now seen corresponding path program 1 times [2023-11-29 06:38:16,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:38:16,230 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1528220533] [2023-11-29 06:38:16,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:38:16,230 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:38:16,236 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:38:16,236 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [527145564] [2023-11-29 06:38:16,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:38:16,237 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:38:16,237 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:38:16,238 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:38:16,238 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2023-11-29 06:38:16,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:38:16,283 INFO L262 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 06:38:16,284 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:38:16,321 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2023-11-29 06:38:16,321 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:38:16,321 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:38:16,321 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1528220533] [2023-11-29 06:38:16,321 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:38:16,321 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [527145564] [2023-11-29 06:38:16,321 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [527145564] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:38:16,321 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:38:16,322 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 06:38:16,322 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1172877189] [2023-11-29 06:38:16,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:38:16,322 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 06:38:16,322 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:38:16,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 06:38:16,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 06:38:16,323 INFO L87 Difference]: Start difference. First operand 263 states and 322 transitions. Second operand has 4 states, 3 states have (on average 12.333333333333334) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-11-29 06:38:17,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:38:17,108 INFO L93 Difference]: Finished difference Result 284 states and 326 transitions. [2023-11-29 06:38:17,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 06:38:17,108 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 12.333333333333334) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 76 [2023-11-29 06:38:17,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:38:17,109 INFO L225 Difference]: With dead ends: 284 [2023-11-29 06:38:17,110 INFO L226 Difference]: Without dead ends: 282 [2023-11-29 06:38:17,110 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 06:38:17,110 INFO L413 NwaCegarLoop]: 139 mSDtfsCounter, 105 mSDsluCounter, 117 mSDsCounter, 0 mSdLazyCounter, 115 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 256 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-29 06:38:17,110 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [109 Valid, 256 Invalid, 117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 115 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-29 06:38:17,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states. [2023-11-29 06:38:17,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 263. [2023-11-29 06:38:17,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 263 states, 182 states have (on average 1.5164835164835164) internal successors, (276), 239 states have internal predecessors, (276), 21 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2023-11-29 06:38:17,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 263 states to 263 states and 318 transitions. [2023-11-29 06:38:17,122 INFO L78 Accepts]: Start accepts. Automaton has 263 states and 318 transitions. Word has length 76 [2023-11-29 06:38:17,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:38:17,122 INFO L495 AbstractCegarLoop]: Abstraction has 263 states and 318 transitions. [2023-11-29 06:38:17,122 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 12.333333333333334) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-11-29 06:38:17,123 INFO L276 IsEmpty]: Start isEmpty. Operand 263 states and 318 transitions. [2023-11-29 06:38:17,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2023-11-29 06:38:17,130 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:38:17,130 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:38:17,134 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Ended with exit code 0 [2023-11-29 06:38:17,330 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2023-11-29 06:38:17,330 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 06:38:17,331 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:38:17,331 INFO L85 PathProgramCache]: Analyzing trace with hash -465163581, now seen corresponding path program 1 times [2023-11-29 06:38:17,331 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:38:17,331 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1895329372] [2023-11-29 06:38:17,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:38:17,331 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:38:17,339 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:38:17,340 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [344342993] [2023-11-29 06:38:17,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:38:17,340 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:38:17,340 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:38:17,341 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:38:17,342 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2023-11-29 06:38:17,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:38:17,391 INFO L262 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 06:38:17,393 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:38:17,433 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2023-11-29 06:38:17,433 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:38:17,433 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:38:17,433 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1895329372] [2023-11-29 06:38:17,433 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:38:17,433 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [344342993] [2023-11-29 06:38:17,434 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [344342993] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:38:17,434 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:38:17,434 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 06:38:17,434 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [165868518] [2023-11-29 06:38:17,434 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:38:17,434 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 06:38:17,434 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:38:17,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 06:38:17,435 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 06:38:17,435 INFO L87 Difference]: Start difference. First operand 263 states and 318 transitions. Second operand has 4 states, 3 states have (on average 12.666666666666666) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-11-29 06:38:18,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:38:18,088 INFO L93 Difference]: Finished difference Result 282 states and 322 transitions. [2023-11-29 06:38:18,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 06:38:18,088 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 12.666666666666666) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 77 [2023-11-29 06:38:18,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:38:18,090 INFO L225 Difference]: With dead ends: 282 [2023-11-29 06:38:18,090 INFO L226 Difference]: Without dead ends: 280 [2023-11-29 06:38:18,090 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 06:38:18,090 INFO L413 NwaCegarLoop]: 144 mSDtfsCounter, 100 mSDsluCounter, 117 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 261 SdHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-29 06:38:18,091 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [104 Valid, 261 Invalid, 116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-29 06:38:18,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 280 states. [2023-11-29 06:38:18,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 280 to 263. [2023-11-29 06:38:18,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 263 states, 182 states have (on average 1.4945054945054945) internal successors, (272), 239 states have internal predecessors, (272), 21 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2023-11-29 06:38:18,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 263 states to 263 states and 314 transitions. [2023-11-29 06:38:18,109 INFO L78 Accepts]: Start accepts. Automaton has 263 states and 314 transitions. Word has length 77 [2023-11-29 06:38:18,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:38:18,109 INFO L495 AbstractCegarLoop]: Abstraction has 263 states and 314 transitions. [2023-11-29 06:38:18,109 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 12.666666666666666) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-11-29 06:38:18,110 INFO L276 IsEmpty]: Start isEmpty. Operand 263 states and 314 transitions. [2023-11-29 06:38:18,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2023-11-29 06:38:18,110 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:38:18,110 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:38:18,116 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Forceful destruction successful, exit code 0 [2023-11-29 06:38:18,311 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2023-11-29 06:38:18,311 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 06:38:18,311 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:38:18,311 INFO L85 PathProgramCache]: Analyzing trace with hash -57355895, now seen corresponding path program 1 times [2023-11-29 06:38:18,311 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:38:18,311 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1598400811] [2023-11-29 06:38:18,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:38:18,312 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:38:18,318 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:38:18,318 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [603976239] [2023-11-29 06:38:18,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:38:18,319 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:38:18,319 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:38:18,319 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:38:18,321 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2023-11-29 06:38:18,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:38:18,374 INFO L262 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-29 06:38:18,375 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:38:18,621 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 3 proven. 12 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2023-11-29 06:38:18,622 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:38:18,852 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 3 proven. 12 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2023-11-29 06:38:18,852 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:38:18,852 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1598400811] [2023-11-29 06:38:18,852 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:38:18,852 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [603976239] [2023-11-29 06:38:18,853 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [603976239] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 06:38:18,853 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 06:38:18,853 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5] total 9 [2023-11-29 06:38:18,853 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1083505306] [2023-11-29 06:38:18,853 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 06:38:18,853 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 06:38:18,854 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:38:18,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 06:38:18,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2023-11-29 06:38:18,855 INFO L87 Difference]: Start difference. First operand 263 states and 314 transitions. Second operand has 10 states, 9 states have (on average 9.444444444444445) internal successors, (85), 8 states have internal predecessors, (85), 6 states have call successors, (16), 1 states have call predecessors, (16), 2 states have return successors, (17), 6 states have call predecessors, (17), 6 states have call successors, (17) [2023-11-29 06:38:19,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:38:19,491 INFO L93 Difference]: Finished difference Result 311 states and 344 transitions. [2023-11-29 06:38:19,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 06:38:19,491 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 9.444444444444445) internal successors, (85), 8 states have internal predecessors, (85), 6 states have call successors, (16), 1 states have call predecessors, (16), 2 states have return successors, (17), 6 states have call predecessors, (17), 6 states have call successors, (17) Word has length 83 [2023-11-29 06:38:19,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:38:19,493 INFO L225 Difference]: With dead ends: 311 [2023-11-29 06:38:19,493 INFO L226 Difference]: Without dead ends: 310 [2023-11-29 06:38:19,494 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 166 GetRequests, 155 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2023-11-29 06:38:19,494 INFO L413 NwaCegarLoop]: 94 mSDtfsCounter, 400 mSDsluCounter, 243 mSDsCounter, 0 mSdLazyCounter, 353 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 404 SdHoareTripleChecker+Valid, 337 SdHoareTripleChecker+Invalid, 368 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 353 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-29 06:38:19,494 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [404 Valid, 337 Invalid, 368 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 353 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-29 06:38:19,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 310 states. [2023-11-29 06:38:19,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 310 to 278. [2023-11-29 06:38:19,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 278 states, 196 states have (on average 1.5153061224489797) internal successors, (297), 253 states have internal predecessors, (297), 22 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2023-11-29 06:38:19,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 341 transitions. [2023-11-29 06:38:19,507 INFO L78 Accepts]: Start accepts. Automaton has 278 states and 341 transitions. Word has length 83 [2023-11-29 06:38:19,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:38:19,507 INFO L495 AbstractCegarLoop]: Abstraction has 278 states and 341 transitions. [2023-11-29 06:38:19,507 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 9.444444444444445) internal successors, (85), 8 states have internal predecessors, (85), 6 states have call successors, (16), 1 states have call predecessors, (16), 2 states have return successors, (17), 6 states have call predecessors, (17), 6 states have call successors, (17) [2023-11-29 06:38:19,507 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 341 transitions. [2023-11-29 06:38:19,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2023-11-29 06:38:19,507 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:38:19,508 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:38:19,513 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Ended with exit code 0 [2023-11-29 06:38:19,708 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2023-11-29 06:38:19,708 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 06:38:19,708 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:38:19,709 INFO L85 PathProgramCache]: Analyzing trace with hash -1778032613, now seen corresponding path program 1 times [2023-11-29 06:38:19,709 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:38:19,709 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [760406485] [2023-11-29 06:38:19,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:38:19,709 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:38:19,716 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:38:19,717 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [674685483] [2023-11-29 06:38:19,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:38:19,717 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:38:19,717 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:38:19,718 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:38:19,719 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2023-11-29 06:38:19,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:38:19,774 INFO L262 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-29 06:38:19,776 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:38:20,088 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2023-11-29 06:38:20,088 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:38:20,088 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:38:20,088 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [760406485] [2023-11-29 06:38:20,088 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:38:20,088 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [674685483] [2023-11-29 06:38:20,088 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [674685483] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:38:20,088 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:38:20,089 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 06:38:20,089 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [702102831] [2023-11-29 06:38:20,089 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:38:20,089 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 06:38:20,089 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:38:20,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 06:38:20,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 06:38:20,090 INFO L87 Difference]: Start difference. First operand 278 states and 341 transitions. Second operand has 4 states, 3 states have (on average 15.0) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-11-29 06:38:20,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:38:20,905 INFO L93 Difference]: Finished difference Result 290 states and 341 transitions. [2023-11-29 06:38:20,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 06:38:20,906 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 15.0) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 84 [2023-11-29 06:38:20,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:38:20,907 INFO L225 Difference]: With dead ends: 290 [2023-11-29 06:38:20,907 INFO L226 Difference]: Without dead ends: 286 [2023-11-29 06:38:20,907 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 06:38:20,908 INFO L413 NwaCegarLoop]: 107 mSDtfsCounter, 22 mSDsluCounter, 80 mSDsCounter, 0 mSdLazyCounter, 280 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 187 SdHoareTripleChecker+Invalid, 283 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 280 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-29 06:38:20,908 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 187 Invalid, 283 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 280 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-29 06:38:20,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 286 states. [2023-11-29 06:38:20,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 286 to 278. [2023-11-29 06:38:20,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 278 states, 196 states have (on average 1.4744897959183674) internal successors, (289), 253 states have internal predecessors, (289), 22 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2023-11-29 06:38:20,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 333 transitions. [2023-11-29 06:38:20,926 INFO L78 Accepts]: Start accepts. Automaton has 278 states and 333 transitions. Word has length 84 [2023-11-29 06:38:20,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:38:20,927 INFO L495 AbstractCegarLoop]: Abstraction has 278 states and 333 transitions. [2023-11-29 06:38:20,927 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 15.0) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-11-29 06:38:20,927 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 333 transitions. [2023-11-29 06:38:20,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2023-11-29 06:38:20,928 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:38:20,928 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:38:20,932 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Ended with exit code 0 [2023-11-29 06:38:21,128 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2023-11-29 06:38:21,128 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 06:38:21,129 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:38:21,129 INFO L85 PathProgramCache]: Analyzing trace with hash 1443943455, now seen corresponding path program 1 times [2023-11-29 06:38:21,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:38:21,129 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1535654291] [2023-11-29 06:38:21,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:38:21,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:38:21,136 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:38:21,136 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [307817080] [2023-11-29 06:38:21,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:38:21,136 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:38:21,136 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:38:21,137 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:38:21,138 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2023-11-29 06:38:21,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:38:21,195 INFO L262 TraceCheckSpWp]: Trace formula consists of 170 conjuncts, 23 conjunts are in the unsatisfiable core [2023-11-29 06:38:21,198 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:38:21,923 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 9 proven. 12 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2023-11-29 06:38:21,923 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:38:22,066 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:38:22,066 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1535654291] [2023-11-29 06:38:22,067 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:38:22,067 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [307817080] [2023-11-29 06:38:22,067 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [307817080] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:38:22,067 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:38:22,067 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2023-11-29 06:38:22,067 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1728262962] [2023-11-29 06:38:22,067 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:38:22,067 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-29 06:38:22,068 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:38:22,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-29 06:38:22,068 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2023-11-29 06:38:22,068 INFO L87 Difference]: Start difference. First operand 278 states and 333 transitions. Second operand has 11 states, 10 states have (on average 5.5) internal successors, (55), 10 states have internal predecessors, (55), 4 states have call successors, (9), 1 states have call predecessors, (9), 3 states have return successors, (9), 5 states have call predecessors, (9), 4 states have call successors, (9) [2023-11-29 06:38:24,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:38:24,283 INFO L93 Difference]: Finished difference Result 288 states and 335 transitions. [2023-11-29 06:38:24,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-29 06:38:24,283 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 5.5) internal successors, (55), 10 states have internal predecessors, (55), 4 states have call successors, (9), 1 states have call predecessors, (9), 3 states have return successors, (9), 5 states have call predecessors, (9), 4 states have call successors, (9) Word has length 88 [2023-11-29 06:38:24,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:38:24,284 INFO L225 Difference]: With dead ends: 288 [2023-11-29 06:38:24,284 INFO L226 Difference]: Without dead ends: 287 [2023-11-29 06:38:24,285 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=162, Unknown=0, NotChecked=0, Total=210 [2023-11-29 06:38:24,285 INFO L413 NwaCegarLoop]: 70 mSDtfsCounter, 164 mSDsluCounter, 359 mSDsCounter, 0 mSdLazyCounter, 987 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 172 SdHoareTripleChecker+Valid, 429 SdHoareTripleChecker+Invalid, 988 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 987 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2023-11-29 06:38:24,285 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [172 Valid, 429 Invalid, 988 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 987 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2023-11-29 06:38:24,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287 states. [2023-11-29 06:38:24,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287 to 278. [2023-11-29 06:38:24,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 278 states, 196 states have (on average 1.4642857142857142) internal successors, (287), 253 states have internal predecessors, (287), 22 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2023-11-29 06:38:24,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 331 transitions. [2023-11-29 06:38:24,304 INFO L78 Accepts]: Start accepts. Automaton has 278 states and 331 transitions. Word has length 88 [2023-11-29 06:38:24,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:38:24,304 INFO L495 AbstractCegarLoop]: Abstraction has 278 states and 331 transitions. [2023-11-29 06:38:24,304 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 5.5) internal successors, (55), 10 states have internal predecessors, (55), 4 states have call successors, (9), 1 states have call predecessors, (9), 3 states have return successors, (9), 5 states have call predecessors, (9), 4 states have call successors, (9) [2023-11-29 06:38:24,304 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 331 transitions. [2023-11-29 06:38:24,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2023-11-29 06:38:24,305 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:38:24,305 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:38:24,311 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Ended with exit code 0 [2023-11-29 06:38:24,505 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2023-11-29 06:38:24,505 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 06:38:24,506 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:38:24,506 INFO L85 PathProgramCache]: Analyzing trace with hash 1812574287, now seen corresponding path program 1 times [2023-11-29 06:38:24,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:38:24,506 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2076986709] [2023-11-29 06:38:24,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:38:24,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:38:24,513 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:38:24,513 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1567031621] [2023-11-29 06:38:24,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:38:24,514 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:38:24,514 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:38:24,514 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:38:24,516 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2023-11-29 06:38:24,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:38:24,566 INFO L262 TraceCheckSpWp]: Trace formula consists of 171 conjuncts, 20 conjunts are in the unsatisfiable core [2023-11-29 06:38:24,569 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:38:29,521 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 9 proven. 12 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2023-11-29 06:38:29,521 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:38:30,324 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:38:30,324 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2076986709] [2023-11-29 06:38:30,324 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:38:30,324 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1567031621] [2023-11-29 06:38:30,324 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1567031621] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:38:30,324 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:38:30,324 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2023-11-29 06:38:30,325 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [944822882] [2023-11-29 06:38:30,325 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:38:30,325 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-29 06:38:30,325 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:38:30,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-29 06:38:30,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=140, Unknown=0, NotChecked=0, Total=182 [2023-11-29 06:38:30,326 INFO L87 Difference]: Start difference. First operand 278 states and 331 transitions. Second operand has 11 states, 10 states have (on average 5.6) internal successors, (56), 10 states have internal predecessors, (56), 4 states have call successors, (9), 1 states have call predecessors, (9), 3 states have return successors, (9), 5 states have call predecessors, (9), 4 states have call successors, (9) [2023-11-29 06:38:34,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:38:34,776 INFO L93 Difference]: Finished difference Result 287 states and 333 transitions. [2023-11-29 06:38:34,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-29 06:38:34,776 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 5.6) internal successors, (56), 10 states have internal predecessors, (56), 4 states have call successors, (9), 1 states have call predecessors, (9), 3 states have return successors, (9), 5 states have call predecessors, (9), 4 states have call successors, (9) Word has length 89 [2023-11-29 06:38:34,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:38:34,778 INFO L225 Difference]: With dead ends: 287 [2023-11-29 06:38:34,778 INFO L226 Difference]: Without dead ends: 286 [2023-11-29 06:38:34,779 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=50, Invalid=190, Unknown=0, NotChecked=0, Total=240 [2023-11-29 06:38:34,779 INFO L413 NwaCegarLoop]: 70 mSDtfsCounter, 167 mSDsluCounter, 439 mSDsCounter, 0 mSdLazyCounter, 956 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 176 SdHoareTripleChecker+Valid, 509 SdHoareTripleChecker+Invalid, 957 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 956 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2023-11-29 06:38:34,779 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [176 Valid, 509 Invalid, 957 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 956 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2023-11-29 06:38:34,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 286 states. [2023-11-29 06:38:34,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 286 to 278. [2023-11-29 06:38:34,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 278 states, 196 states have (on average 1.4540816326530612) internal successors, (285), 253 states have internal predecessors, (285), 22 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2023-11-29 06:38:34,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 329 transitions. [2023-11-29 06:38:34,803 INFO L78 Accepts]: Start accepts. Automaton has 278 states and 329 transitions. Word has length 89 [2023-11-29 06:38:34,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:38:34,803 INFO L495 AbstractCegarLoop]: Abstraction has 278 states and 329 transitions. [2023-11-29 06:38:34,803 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 5.6) internal successors, (56), 10 states have internal predecessors, (56), 4 states have call successors, (9), 1 states have call predecessors, (9), 3 states have return successors, (9), 5 states have call predecessors, (9), 4 states have call successors, (9) [2023-11-29 06:38:34,803 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 329 transitions. [2023-11-29 06:38:34,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-11-29 06:38:34,804 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:38:34,804 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:38:34,809 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Ended with exit code 0 [2023-11-29 06:38:35,004 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2023-11-29 06:38:35,004 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr40ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 06:38:35,005 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:38:35,005 INFO L85 PathProgramCache]: Analyzing trace with hash 772495050, now seen corresponding path program 1 times [2023-11-29 06:38:35,005 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:38:35,005 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1886405929] [2023-11-29 06:38:35,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:38:35,005 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:38:35,013 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:38:35,013 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [670187408] [2023-11-29 06:38:35,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:38:35,013 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:38:35,013 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:38:35,014 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:38:35,015 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2023-11-29 06:38:35,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:38:35,066 INFO L262 TraceCheckSpWp]: Trace formula consists of 184 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-29 06:38:35,068 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:38:35,075 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-11-29 06:38:35,075 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:38:35,075 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:38:35,075 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1886405929] [2023-11-29 06:38:35,075 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:38:35,075 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [670187408] [2023-11-29 06:38:35,075 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [670187408] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:38:35,075 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:38:35,076 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 06:38:35,076 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [384967802] [2023-11-29 06:38:35,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:38:35,076 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 06:38:35,076 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:38:35,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 06:38:35,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 06:38:35,077 INFO L87 Difference]: Start difference. First operand 278 states and 329 transitions. Second operand has 3 states, 2 states have (on average 27.0) internal successors, (54), 3 states have internal predecessors, (54), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2023-11-29 06:38:35,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:38:35,129 INFO L93 Difference]: Finished difference Result 278 states and 329 transitions. [2023-11-29 06:38:35,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 06:38:35,130 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 27.0) internal successors, (54), 3 states have internal predecessors, (54), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 98 [2023-11-29 06:38:35,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:38:35,132 INFO L225 Difference]: With dead ends: 278 [2023-11-29 06:38:35,132 INFO L226 Difference]: Without dead ends: 277 [2023-11-29 06:38:35,133 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 06:38:35,133 INFO L413 NwaCegarLoop]: 154 mSDtfsCounter, 43 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 238 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 06:38:35,133 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 238 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 06:38:35,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 277 states. [2023-11-29 06:38:35,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 277 to 277. [2023-11-29 06:38:35,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 277 states, 196 states have (on average 1.4387755102040816) internal successors, (282), 252 states have internal predecessors, (282), 22 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2023-11-29 06:38:35,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 277 states to 277 states and 326 transitions. [2023-11-29 06:38:35,154 INFO L78 Accepts]: Start accepts. Automaton has 277 states and 326 transitions. Word has length 98 [2023-11-29 06:38:35,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:38:35,155 INFO L495 AbstractCegarLoop]: Abstraction has 277 states and 326 transitions. [2023-11-29 06:38:35,155 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 27.0) internal successors, (54), 3 states have internal predecessors, (54), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2023-11-29 06:38:35,155 INFO L276 IsEmpty]: Start isEmpty. Operand 277 states and 326 transitions. [2023-11-29 06:38:35,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-11-29 06:38:35,156 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:38:35,156 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:38:35,162 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Ended with exit code 0 [2023-11-29 06:38:35,356 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:38:35,356 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr46ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 06:38:35,357 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:38:35,357 INFO L85 PathProgramCache]: Analyzing trace with hash 963878354, now seen corresponding path program 1 times [2023-11-29 06:38:35,357 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:38:35,357 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1368666955] [2023-11-29 06:38:35,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:38:35,357 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:38:35,364 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:38:35,364 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1774958194] [2023-11-29 06:38:35,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:38:35,364 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:38:35,365 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:38:35,365 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:38:35,366 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2023-11-29 06:38:35,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:38:35,418 INFO L262 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 06:38:35,420 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:38:35,485 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-11-29 06:38:35,485 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:38:35,485 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:38:35,485 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1368666955] [2023-11-29 06:38:35,485 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:38:35,485 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1774958194] [2023-11-29 06:38:35,485 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1774958194] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:38:35,485 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:38:35,485 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 06:38:35,485 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1530021678] [2023-11-29 06:38:35,485 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:38:35,486 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 06:38:35,486 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:38:35,486 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 06:38:35,486 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-29 06:38:35,486 INFO L87 Difference]: Start difference. First operand 277 states and 326 transitions. Second operand has 5 states, 4 states have (on average 14.25) internal successors, (57), 5 states have internal predecessors, (57), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-11-29 06:38:35,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:38:35,538 INFO L93 Difference]: Finished difference Result 286 states and 330 transitions. [2023-11-29 06:38:35,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 06:38:35,538 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 14.25) internal successors, (57), 5 states have internal predecessors, (57), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 101 [2023-11-29 06:38:35,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:38:35,540 INFO L225 Difference]: With dead ends: 286 [2023-11-29 06:38:35,540 INFO L226 Difference]: Without dead ends: 285 [2023-11-29 06:38:35,540 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-29 06:38:35,541 INFO L413 NwaCegarLoop]: 151 mSDtfsCounter, 14 mSDsluCounter, 277 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 428 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 06:38:35,541 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 428 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 06:38:35,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 285 states. [2023-11-29 06:38:35,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 285 to 278. [2023-11-29 06:38:35,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 278 states, 197 states have (on average 1.4365482233502538) internal successors, (283), 253 states have internal predecessors, (283), 22 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2023-11-29 06:38:35,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 327 transitions. [2023-11-29 06:38:35,560 INFO L78 Accepts]: Start accepts. Automaton has 278 states and 327 transitions. Word has length 101 [2023-11-29 06:38:35,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:38:35,561 INFO L495 AbstractCegarLoop]: Abstraction has 278 states and 327 transitions. [2023-11-29 06:38:35,561 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 14.25) internal successors, (57), 5 states have internal predecessors, (57), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-11-29 06:38:35,561 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 327 transitions. [2023-11-29 06:38:35,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-11-29 06:38:35,562 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:38:35,562 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:38:35,567 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Ended with exit code 0 [2023-11-29 06:38:35,762 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable30 [2023-11-29 06:38:35,763 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr47ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 06:38:35,763 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:38:35,763 INFO L85 PathProgramCache]: Analyzing trace with hash -184541926, now seen corresponding path program 1 times [2023-11-29 06:38:35,763 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:38:35,763 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [199787184] [2023-11-29 06:38:35,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:38:35,763 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:38:35,771 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:38:35,771 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [443191141] [2023-11-29 06:38:35,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:38:35,771 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:38:35,772 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:38:35,772 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:38:35,773 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process [2023-11-29 06:38:35,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:38:35,834 INFO L262 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 06:38:35,835 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:38:35,964 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-11-29 06:38:35,964 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:38:35,964 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:38:35,964 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [199787184] [2023-11-29 06:38:35,964 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:38:35,964 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [443191141] [2023-11-29 06:38:35,964 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [443191141] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:38:35,964 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:38:35,964 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 06:38:35,964 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1161027879] [2023-11-29 06:38:35,965 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:38:35,965 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 06:38:35,965 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:38:35,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 06:38:35,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 06:38:35,966 INFO L87 Difference]: Start difference. First operand 278 states and 327 transitions. Second operand has 4 states, 3 states have (on average 19.333333333333332) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-11-29 06:38:36,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:38:36,440 INFO L93 Difference]: Finished difference Result 285 states and 329 transitions. [2023-11-29 06:38:36,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 06:38:36,440 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 19.333333333333332) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 102 [2023-11-29 06:38:36,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:38:36,442 INFO L225 Difference]: With dead ends: 285 [2023-11-29 06:38:36,442 INFO L226 Difference]: Without dead ends: 284 [2023-11-29 06:38:36,442 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 06:38:36,443 INFO L413 NwaCegarLoop]: 132 mSDtfsCounter, 13 mSDsluCounter, 173 mSDsCounter, 0 mSdLazyCounter, 166 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 305 SdHoareTripleChecker+Invalid, 167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 166 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-29 06:38:36,443 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 305 Invalid, 167 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 166 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-29 06:38:36,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 284 states. [2023-11-29 06:38:36,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 284 to 279. [2023-11-29 06:38:36,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 279 states, 198 states have (on average 1.4343434343434343) internal successors, (284), 254 states have internal predecessors, (284), 22 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2023-11-29 06:38:36,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 279 states to 279 states and 328 transitions. [2023-11-29 06:38:36,464 INFO L78 Accepts]: Start accepts. Automaton has 279 states and 328 transitions. Word has length 102 [2023-11-29 06:38:36,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:38:36,465 INFO L495 AbstractCegarLoop]: Abstraction has 279 states and 328 transitions. [2023-11-29 06:38:36,465 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 19.333333333333332) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-11-29 06:38:36,465 INFO L276 IsEmpty]: Start isEmpty. Operand 279 states and 328 transitions. [2023-11-29 06:38:36,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2023-11-29 06:38:36,466 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:38:36,466 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:38:36,472 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Ended with exit code 0 [2023-11-29 06:38:36,666 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:38:36,666 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr48ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 06:38:36,667 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:38:36,667 INFO L85 PathProgramCache]: Analyzing trace with hash -1425832236, now seen corresponding path program 1 times [2023-11-29 06:38:36,667 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:38:36,667 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [341839353] [2023-11-29 06:38:36,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:38:36,667 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:38:36,675 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:38:36,675 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1015881849] [2023-11-29 06:38:36,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:38:36,676 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:38:36,676 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:38:36,677 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:38:36,677 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Waiting until timeout for monitored process [2023-11-29 06:38:36,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:38:36,729 INFO L262 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 06:38:36,730 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:38:36,850 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-11-29 06:38:36,850 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:38:36,850 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:38:36,850 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [341839353] [2023-11-29 06:38:36,850 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:38:36,850 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1015881849] [2023-11-29 06:38:36,850 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1015881849] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:38:36,850 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:38:36,851 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 06:38:36,851 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2145236671] [2023-11-29 06:38:36,851 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:38:36,851 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 06:38:36,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:38:36,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 06:38:36,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 06:38:36,852 INFO L87 Difference]: Start difference. First operand 279 states and 328 transitions. Second operand has 4 states, 3 states have (on average 19.666666666666668) internal successors, (59), 4 states have internal predecessors, (59), 3 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2023-11-29 06:38:36,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:38:36,947 INFO L93 Difference]: Finished difference Result 292 states and 336 transitions. [2023-11-29 06:38:36,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 06:38:36,947 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 19.666666666666668) internal successors, (59), 4 states have internal predecessors, (59), 3 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 103 [2023-11-29 06:38:36,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:38:36,948 INFO L225 Difference]: With dead ends: 292 [2023-11-29 06:38:36,948 INFO L226 Difference]: Without dead ends: 291 [2023-11-29 06:38:36,949 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 06:38:36,949 INFO L413 NwaCegarLoop]: 118 mSDtfsCounter, 36 mSDsluCounter, 99 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 217 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 06:38:36,949 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 217 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 06:38:36,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 291 states. [2023-11-29 06:38:36,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 291 to 280. [2023-11-29 06:38:36,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 280 states, 199 states have (on average 1.4321608040201006) internal successors, (285), 255 states have internal predecessors, (285), 22 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2023-11-29 06:38:36,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 280 states to 280 states and 329 transitions. [2023-11-29 06:38:36,963 INFO L78 Accepts]: Start accepts. Automaton has 280 states and 329 transitions. Word has length 103 [2023-11-29 06:38:36,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:38:36,964 INFO L495 AbstractCegarLoop]: Abstraction has 280 states and 329 transitions. [2023-11-29 06:38:36,964 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 19.666666666666668) internal successors, (59), 4 states have internal predecessors, (59), 3 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2023-11-29 06:38:36,964 INFO L276 IsEmpty]: Start isEmpty. Operand 280 states and 329 transitions. [2023-11-29 06:38:36,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-11-29 06:38:36,965 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:38:36,965 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:38:36,969 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Ended with exit code 0 [2023-11-29 06:38:37,165 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32,34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:38:37,165 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr49ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 06:38:37,165 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:38:37,166 INFO L85 PathProgramCache]: Analyzing trace with hash -1251126180, now seen corresponding path program 1 times [2023-11-29 06:38:37,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:38:37,166 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [188539685] [2023-11-29 06:38:37,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:38:37,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:38:37,174 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:38:37,174 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1530035908] [2023-11-29 06:38:37,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:38:37,175 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:38:37,175 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:38:37,176 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:38:37,176 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Waiting until timeout for monitored process [2023-11-29 06:38:37,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:38:37,236 INFO L262 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 06:38:37,238 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:38:37,361 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-11-29 06:38:37,361 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:38:37,362 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:38:37,362 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [188539685] [2023-11-29 06:38:37,362 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:38:37,362 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1530035908] [2023-11-29 06:38:37,362 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1530035908] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:38:37,362 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:38:37,362 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 06:38:37,362 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1989909096] [2023-11-29 06:38:37,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:38:37,363 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 06:38:37,363 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:38:37,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 06:38:37,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 06:38:37,363 INFO L87 Difference]: Start difference. First operand 280 states and 329 transitions. Second operand has 4 states, 3 states have (on average 20.0) internal successors, (60), 4 states have internal predecessors, (60), 3 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2023-11-29 06:38:37,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:38:37,502 INFO L93 Difference]: Finished difference Result 303 states and 347 transitions. [2023-11-29 06:38:37,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 06:38:37,503 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 20.0) internal successors, (60), 4 states have internal predecessors, (60), 3 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 104 [2023-11-29 06:38:37,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:38:37,504 INFO L225 Difference]: With dead ends: 303 [2023-11-29 06:38:37,504 INFO L226 Difference]: Without dead ends: 302 [2023-11-29 06:38:37,504 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 06:38:37,505 INFO L413 NwaCegarLoop]: 122 mSDtfsCounter, 81 mSDsluCounter, 120 mSDsCounter, 0 mSdLazyCounter, 130 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 242 SdHoareTripleChecker+Invalid, 131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 06:38:37,505 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 242 Invalid, 131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 130 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 06:38:37,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 302 states. [2023-11-29 06:38:37,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 302 to 287. [2023-11-29 06:38:37,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 287 states, 206 states have (on average 1.4174757281553398) internal successors, (292), 262 states have internal predecessors, (292), 22 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2023-11-29 06:38:37,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 287 states to 287 states and 336 transitions. [2023-11-29 06:38:37,519 INFO L78 Accepts]: Start accepts. Automaton has 287 states and 336 transitions. Word has length 104 [2023-11-29 06:38:37,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:38:37,519 INFO L495 AbstractCegarLoop]: Abstraction has 287 states and 336 transitions. [2023-11-29 06:38:37,519 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 20.0) internal successors, (60), 4 states have internal predecessors, (60), 3 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2023-11-29 06:38:37,519 INFO L276 IsEmpty]: Start isEmpty. Operand 287 states and 336 transitions. [2023-11-29 06:38:37,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-11-29 06:38:37,520 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:38:37,520 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:38:37,524 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Ended with exit code 0 [2023-11-29 06:38:37,720 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable33 [2023-11-29 06:38:37,720 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 06:38:37,721 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:38:37,721 INFO L85 PathProgramCache]: Analyzing trace with hash 1653467349, now seen corresponding path program 1 times [2023-11-29 06:38:37,721 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:38:37,721 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1471178642] [2023-11-29 06:38:37,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:38:37,721 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:38:37,728 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:38:37,728 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1175344048] [2023-11-29 06:38:37,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:38:37,728 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:38:37,729 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:38:37,729 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:38:37,731 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Waiting until timeout for monitored process [2023-11-29 06:38:37,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:38:37,786 INFO L262 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-29 06:38:37,788 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:38:37,966 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2023-11-29 06:38:37,966 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:38:38,461 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2023-11-29 06:38:38,461 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:38:38,461 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1471178642] [2023-11-29 06:38:38,461 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:38:38,461 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1175344048] [2023-11-29 06:38:38,461 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1175344048] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 06:38:38,461 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 06:38:38,461 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2023-11-29 06:38:38,461 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2005082854] [2023-11-29 06:38:38,461 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 06:38:38,462 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-11-29 06:38:38,462 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:38:38,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-11-29 06:38:38,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=168, Unknown=0, NotChecked=0, Total=210 [2023-11-29 06:38:38,462 INFO L87 Difference]: Start difference. First operand 287 states and 336 transitions. Second operand has 15 states, 14 states have (on average 8.428571428571429) internal successors, (118), 15 states have internal predecessors, (118), 7 states have call successors, (19), 1 states have call predecessors, (19), 2 states have return successors, (20), 6 states have call predecessors, (20), 7 states have call successors, (20) [2023-11-29 06:38:40,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:38:40,487 INFO L93 Difference]: Finished difference Result 1179 states and 1319 transitions. [2023-11-29 06:38:40,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-11-29 06:38:40,487 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 8.428571428571429) internal successors, (118), 15 states have internal predecessors, (118), 7 states have call successors, (19), 1 states have call predecessors, (19), 2 states have return successors, (20), 6 states have call predecessors, (20), 7 states have call successors, (20) Word has length 104 [2023-11-29 06:38:40,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:38:40,498 INFO L225 Difference]: With dead ends: 1179 [2023-11-29 06:38:40,498 INFO L226 Difference]: Without dead ends: 1170 [2023-11-29 06:38:40,499 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 224 GetRequests, 193 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 163 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=276, Invalid=780, Unknown=0, NotChecked=0, Total=1056 [2023-11-29 06:38:40,500 INFO L413 NwaCegarLoop]: 176 mSDtfsCounter, 2516 mSDsluCounter, 840 mSDsCounter, 0 mSdLazyCounter, 1702 mSolverCounterSat, 183 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2516 SdHoareTripleChecker+Valid, 1016 SdHoareTripleChecker+Invalid, 1885 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 183 IncrementalHoareTripleChecker+Valid, 1702 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-11-29 06:38:40,500 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2516 Valid, 1016 Invalid, 1885 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [183 Valid, 1702 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2023-11-29 06:38:40,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1170 states. [2023-11-29 06:38:40,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1170 to 508. [2023-11-29 06:38:40,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 508 states, 412 states have (on average 1.4878640776699028) internal successors, (613), 467 states have internal predecessors, (613), 38 states have call successors, (38), 2 states have call predecessors, (38), 2 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2023-11-29 06:38:40,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 508 states to 508 states and 689 transitions. [2023-11-29 06:38:40,538 INFO L78 Accepts]: Start accepts. Automaton has 508 states and 689 transitions. Word has length 104 [2023-11-29 06:38:40,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:38:40,539 INFO L495 AbstractCegarLoop]: Abstraction has 508 states and 689 transitions. [2023-11-29 06:38:40,539 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 8.428571428571429) internal successors, (118), 15 states have internal predecessors, (118), 7 states have call successors, (19), 1 states have call predecessors, (19), 2 states have return successors, (20), 6 states have call predecessors, (20), 7 states have call successors, (20) [2023-11-29 06:38:40,539 INFO L276 IsEmpty]: Start isEmpty. Operand 508 states and 689 transitions. [2023-11-29 06:38:40,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2023-11-29 06:38:40,540 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:38:40,540 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:38:40,545 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Ended with exit code 0 [2023-11-29 06:38:40,745 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34,36 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:38:40,746 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr50ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 06:38:40,746 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:38:40,746 INFO L85 PathProgramCache]: Analyzing trace with hash -130205738, now seen corresponding path program 1 times [2023-11-29 06:38:40,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:38:40,746 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1368507216] [2023-11-29 06:38:40,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:38:40,746 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:38:40,755 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:38:40,755 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1982509665] [2023-11-29 06:38:40,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:38:40,756 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:38:40,756 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:38:40,757 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:38:40,757 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Waiting until timeout for monitored process [2023-11-29 06:38:40,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:38:40,815 INFO L262 TraceCheckSpWp]: Trace formula consists of 204 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 06:38:40,817 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:38:40,874 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-11-29 06:38:40,874 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:38:40,874 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:38:40,874 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1368507216] [2023-11-29 06:38:40,874 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:38:40,874 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1982509665] [2023-11-29 06:38:40,874 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1982509665] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:38:40,875 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:38:40,875 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 06:38:40,875 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [327625884] [2023-11-29 06:38:40,875 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:38:40,875 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 06:38:40,875 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:38:40,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 06:38:40,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-29 06:38:40,876 INFO L87 Difference]: Start difference. First operand 508 states and 689 transitions. Second operand has 5 states, 4 states have (on average 15.25) internal successors, (61), 5 states have internal predecessors, (61), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-11-29 06:38:41,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:38:41,191 INFO L93 Difference]: Finished difference Result 525 states and 707 transitions. [2023-11-29 06:38:41,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 06:38:41,192 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 15.25) internal successors, (61), 5 states have internal predecessors, (61), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 105 [2023-11-29 06:38:41,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:38:41,195 INFO L225 Difference]: With dead ends: 525 [2023-11-29 06:38:41,195 INFO L226 Difference]: Without dead ends: 524 [2023-11-29 06:38:41,196 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-29 06:38:41,196 INFO L413 NwaCegarLoop]: 148 mSDtfsCounter, 12 mSDsluCounter, 353 mSDsCounter, 0 mSdLazyCounter, 120 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 501 SdHoareTripleChecker+Invalid, 120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 06:38:41,196 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 501 Invalid, 120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 120 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 06:38:41,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 524 states. [2023-11-29 06:38:41,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 524 to 515. [2023-11-29 06:38:41,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 515 states, 419 states have (on average 1.4844868735083532) internal successors, (622), 474 states have internal predecessors, (622), 38 states have call successors, (38), 2 states have call predecessors, (38), 2 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2023-11-29 06:38:41,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 515 states to 515 states and 698 transitions. [2023-11-29 06:38:41,235 INFO L78 Accepts]: Start accepts. Automaton has 515 states and 698 transitions. Word has length 105 [2023-11-29 06:38:41,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:38:41,235 INFO L495 AbstractCegarLoop]: Abstraction has 515 states and 698 transitions. [2023-11-29 06:38:41,235 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 15.25) internal successors, (61), 5 states have internal predecessors, (61), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-11-29 06:38:41,235 INFO L276 IsEmpty]: Start isEmpty. Operand 515 states and 698 transitions. [2023-11-29 06:38:41,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2023-11-29 06:38:41,236 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:38:41,236 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:38:41,242 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Ended with exit code 0 [2023-11-29 06:38:41,436 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35,37 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:38:41,437 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 06:38:41,437 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:38:41,437 INFO L85 PathProgramCache]: Analyzing trace with hash -282119656, now seen corresponding path program 1 times [2023-11-29 06:38:41,437 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:38:41,437 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1246135935] [2023-11-29 06:38:41,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:38:41,437 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:38:41,444 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:38:41,445 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [351221242] [2023-11-29 06:38:41,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:38:41,445 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:38:41,445 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:38:41,446 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:38:41,447 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Waiting until timeout for monitored process [2023-11-29 06:38:41,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:38:41,501 INFO L262 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 06:38:41,503 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:38:41,537 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-11-29 06:38:41,538 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:38:41,538 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:38:41,538 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1246135935] [2023-11-29 06:38:41,538 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:38:41,538 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [351221242] [2023-11-29 06:38:41,538 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [351221242] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:38:41,538 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:38:41,538 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 06:38:41,538 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1995914449] [2023-11-29 06:38:41,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:38:41,538 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 06:38:41,538 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:38:41,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 06:38:41,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-29 06:38:41,539 INFO L87 Difference]: Start difference. First operand 515 states and 698 transitions. Second operand has 5 states, 4 states have (on average 15.25) internal successors, (61), 5 states have internal predecessors, (61), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2023-11-29 06:38:41,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:38:41,804 INFO L93 Difference]: Finished difference Result 577 states and 743 transitions. [2023-11-29 06:38:41,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 06:38:41,805 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 15.25) internal successors, (61), 5 states have internal predecessors, (61), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 105 [2023-11-29 06:38:41,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:38:41,808 INFO L225 Difference]: With dead ends: 577 [2023-11-29 06:38:41,808 INFO L226 Difference]: Without dead ends: 576 [2023-11-29 06:38:41,809 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-11-29 06:38:41,809 INFO L413 NwaCegarLoop]: 212 mSDtfsCounter, 253 mSDsluCounter, 241 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 259 SdHoareTripleChecker+Valid, 453 SdHoareTripleChecker+Invalid, 150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 06:38:41,809 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [259 Valid, 453 Invalid, 150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 06:38:41,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 576 states. [2023-11-29 06:38:41,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 576 to 515. [2023-11-29 06:38:41,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 515 states, 419 states have (on average 1.4749403341288783) internal successors, (618), 474 states have internal predecessors, (618), 38 states have call successors, (38), 2 states have call predecessors, (38), 2 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2023-11-29 06:38:41,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 515 states to 515 states and 694 transitions. [2023-11-29 06:38:41,839 INFO L78 Accepts]: Start accepts. Automaton has 515 states and 694 transitions. Word has length 105 [2023-11-29 06:38:41,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:38:41,839 INFO L495 AbstractCegarLoop]: Abstraction has 515 states and 694 transitions. [2023-11-29 06:38:41,839 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 15.25) internal successors, (61), 5 states have internal predecessors, (61), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2023-11-29 06:38:41,840 INFO L276 IsEmpty]: Start isEmpty. Operand 515 states and 694 transitions. [2023-11-29 06:38:41,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2023-11-29 06:38:41,840 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:38:41,840 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:38:41,845 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Ended with exit code 0 [2023-11-29 06:38:42,041 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 38 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2023-11-29 06:38:42,041 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr51ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 06:38:42,041 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:38:42,042 INFO L85 PathProgramCache]: Analyzing trace with hash 258589598, now seen corresponding path program 1 times [2023-11-29 06:38:42,042 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:38:42,042 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [729597783] [2023-11-29 06:38:42,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:38:42,042 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:38:42,050 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:38:42,050 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1271297878] [2023-11-29 06:38:42,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:38:42,050 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:38:42,051 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:38:42,052 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:38:42,053 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Waiting until timeout for monitored process [2023-11-29 06:38:42,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:38:42,114 INFO L262 TraceCheckSpWp]: Trace formula consists of 205 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-29 06:38:42,116 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:38:42,386 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-11-29 06:38:42,386 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:38:42,386 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:38:42,386 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [729597783] [2023-11-29 06:38:42,386 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:38:42,387 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1271297878] [2023-11-29 06:38:42,387 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1271297878] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:38:42,387 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:38:42,387 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 06:38:42,387 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2006791724] [2023-11-29 06:38:42,387 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:38:42,387 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 06:38:42,387 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:38:42,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 06:38:42,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-29 06:38:42,388 INFO L87 Difference]: Start difference. First operand 515 states and 694 transitions. Second operand has 5 states, 4 states have (on average 15.5) internal successors, (62), 5 states have internal predecessors, (62), 3 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2023-11-29 06:38:42,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:38:42,576 INFO L93 Difference]: Finished difference Result 523 states and 700 transitions. [2023-11-29 06:38:42,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 06:38:42,576 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 15.5) internal successors, (62), 5 states have internal predecessors, (62), 3 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 106 [2023-11-29 06:38:42,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:38:42,579 INFO L225 Difference]: With dead ends: 523 [2023-11-29 06:38:42,579 INFO L226 Difference]: Without dead ends: 522 [2023-11-29 06:38:42,579 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-29 06:38:42,580 INFO L413 NwaCegarLoop]: 117 mSDtfsCounter, 21 mSDsluCounter, 157 mSDsCounter, 0 mSdLazyCounter, 190 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 274 SdHoareTripleChecker+Invalid, 192 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 190 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 06:38:42,580 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 274 Invalid, 192 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 190 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 06:38:42,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 522 states. [2023-11-29 06:38:42,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 522 to 518. [2023-11-29 06:38:42,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 518 states, 422 states have (on average 1.471563981042654) internal successors, (621), 477 states have internal predecessors, (621), 38 states have call successors, (38), 2 states have call predecessors, (38), 2 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2023-11-29 06:38:42,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 518 states to 518 states and 697 transitions. [2023-11-29 06:38:42,610 INFO L78 Accepts]: Start accepts. Automaton has 518 states and 697 transitions. Word has length 106 [2023-11-29 06:38:42,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:38:42,610 INFO L495 AbstractCegarLoop]: Abstraction has 518 states and 697 transitions. [2023-11-29 06:38:42,610 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 15.5) internal successors, (62), 5 states have internal predecessors, (62), 3 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2023-11-29 06:38:42,610 INFO L276 IsEmpty]: Start isEmpty. Operand 518 states and 697 transitions. [2023-11-29 06:38:42,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2023-11-29 06:38:42,611 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:38:42,611 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:38:42,615 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Ended with exit code 0 [2023-11-29 06:38:42,811 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 39 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2023-11-29 06:38:42,812 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 06:38:42,812 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:38:42,812 INFO L85 PathProgramCache]: Analyzing trace with hash -155774665, now seen corresponding path program 1 times [2023-11-29 06:38:42,812 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:38:42,812 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1355201677] [2023-11-29 06:38:42,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:38:42,812 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:38:42,821 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:38:42,822 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [237394586] [2023-11-29 06:38:42,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:38:42,822 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:38:42,822 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:38:42,823 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:38:42,824 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Waiting until timeout for monitored process [2023-11-29 06:38:42,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:38:42,892 INFO L262 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 16 conjunts are in the unsatisfiable core [2023-11-29 06:38:42,895 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:38:43,222 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2023-11-29 06:38:43,222 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:38:43,281 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:38:43,281 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1355201677] [2023-11-29 06:38:43,281 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:38:43,281 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [237394586] [2023-11-29 06:38:43,281 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [237394586] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:38:43,281 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:38:43,281 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2023-11-29 06:38:43,281 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1462688479] [2023-11-29 06:38:43,281 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:38:43,282 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 06:38:43,282 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:38:43,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 06:38:43,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2023-11-29 06:38:43,283 INFO L87 Difference]: Start difference. First operand 518 states and 697 transitions. Second operand has 9 states, 8 states have (on average 8.125) internal successors, (65), 9 states have internal predecessors, (65), 4 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 3 states have call predecessors, (10), 4 states have call successors, (10) [2023-11-29 06:38:43,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:38:43,924 INFO L93 Difference]: Finished difference Result 550 states and 725 transitions. [2023-11-29 06:38:43,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-29 06:38:43,925 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 8.125) internal successors, (65), 9 states have internal predecessors, (65), 4 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 3 states have call predecessors, (10), 4 states have call successors, (10) Word has length 106 [2023-11-29 06:38:43,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:38:43,927 INFO L225 Difference]: With dead ends: 550 [2023-11-29 06:38:43,928 INFO L226 Difference]: Without dead ends: 549 [2023-11-29 06:38:43,928 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=72, Invalid=270, Unknown=0, NotChecked=0, Total=342 [2023-11-29 06:38:43,928 INFO L413 NwaCegarLoop]: 97 mSDtfsCounter, 473 mSDsluCounter, 470 mSDsCounter, 0 mSdLazyCounter, 777 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 478 SdHoareTripleChecker+Valid, 567 SdHoareTripleChecker+Invalid, 808 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 777 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-29 06:38:43,928 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [478 Valid, 567 Invalid, 808 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 777 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-29 06:38:43,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 549 states. [2023-11-29 06:38:43,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 549 to 518. [2023-11-29 06:38:43,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 518 states, 422 states have (on average 1.4691943127962086) internal successors, (620), 477 states have internal predecessors, (620), 38 states have call successors, (38), 2 states have call predecessors, (38), 2 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2023-11-29 06:38:43,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 518 states to 518 states and 696 transitions. [2023-11-29 06:38:43,961 INFO L78 Accepts]: Start accepts. Automaton has 518 states and 696 transitions. Word has length 106 [2023-11-29 06:38:43,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:38:43,962 INFO L495 AbstractCegarLoop]: Abstraction has 518 states and 696 transitions. [2023-11-29 06:38:43,962 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 8.125) internal successors, (65), 9 states have internal predecessors, (65), 4 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 3 states have call predecessors, (10), 4 states have call successors, (10) [2023-11-29 06:38:43,962 INFO L276 IsEmpty]: Start isEmpty. Operand 518 states and 696 transitions. [2023-11-29 06:38:43,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2023-11-29 06:38:43,962 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:38:43,962 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:38:43,968 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Ended with exit code 0 [2023-11-29 06:38:44,163 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 40 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2023-11-29 06:38:44,163 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr52ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 06:38:44,163 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:38:44,163 INFO L85 PathProgramCache]: Analyzing trace with hash -1528558184, now seen corresponding path program 1 times [2023-11-29 06:38:44,163 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:38:44,163 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [397107477] [2023-11-29 06:38:44,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:38:44,164 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:38:44,170 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:38:44,170 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1139539619] [2023-11-29 06:38:44,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:38:44,171 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:38:44,171 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:38:44,172 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:38:44,178 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Waiting until timeout for monitored process [2023-11-29 06:38:44,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:38:44,246 INFO L262 TraceCheckSpWp]: Trace formula consists of 211 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-29 06:38:44,248 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:38:44,345 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 6 proven. 11 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2023-11-29 06:38:44,345 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:38:44,465 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 6 proven. 11 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2023-11-29 06:38:44,465 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:38:44,465 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [397107477] [2023-11-29 06:38:44,466 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:38:44,466 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1139539619] [2023-11-29 06:38:44,466 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1139539619] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 06:38:44,466 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 06:38:44,466 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 9 [2023-11-29 06:38:44,466 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [994947473] [2023-11-29 06:38:44,466 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 06:38:44,467 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 06:38:44,467 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:38:44,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 06:38:44,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2023-11-29 06:38:44,467 INFO L87 Difference]: Start difference. First operand 518 states and 696 transitions. Second operand has 9 states, 9 states have (on average 7.777777777777778) internal successors, (70), 8 states have internal predecessors, (70), 4 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2023-11-29 06:38:45,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:38:45,114 INFO L93 Difference]: Finished difference Result 1135 states and 1491 transitions. [2023-11-29 06:38:45,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 06:38:45,115 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.777777777777778) internal successors, (70), 8 states have internal predecessors, (70), 4 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) Word has length 109 [2023-11-29 06:38:45,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:38:45,121 INFO L225 Difference]: With dead ends: 1135 [2023-11-29 06:38:45,121 INFO L226 Difference]: Without dead ends: 1106 [2023-11-29 06:38:45,122 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 221 GetRequests, 205 SyntacticMatches, 4 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2023-11-29 06:38:45,122 INFO L413 NwaCegarLoop]: 125 mSDtfsCounter, 781 mSDsluCounter, 597 mSDsCounter, 0 mSdLazyCounter, 678 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 786 SdHoareTripleChecker+Valid, 722 SdHoareTripleChecker+Invalid, 709 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 678 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-29 06:38:45,122 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [786 Valid, 722 Invalid, 709 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 678 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-29 06:38:45,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1106 states. [2023-11-29 06:38:45,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1106 to 842. [2023-11-29 06:38:45,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 842 states, 722 states have (on average 1.5858725761772854) internal successors, (1145), 777 states have internal predecessors, (1145), 62 states have call successors, (62), 2 states have call predecessors, (62), 2 states have return successors, (62), 62 states have call predecessors, (62), 62 states have call successors, (62) [2023-11-29 06:38:45,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 842 states to 842 states and 1269 transitions. [2023-11-29 06:38:45,193 INFO L78 Accepts]: Start accepts. Automaton has 842 states and 1269 transitions. Word has length 109 [2023-11-29 06:38:45,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:38:45,194 INFO L495 AbstractCegarLoop]: Abstraction has 842 states and 1269 transitions. [2023-11-29 06:38:45,194 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.777777777777778) internal successors, (70), 8 states have internal predecessors, (70), 4 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2023-11-29 06:38:45,194 INFO L276 IsEmpty]: Start isEmpty. Operand 842 states and 1269 transitions. [2023-11-29 06:38:45,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2023-11-29 06:38:45,195 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:38:45,195 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:38:45,201 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Ended with exit code 0 [2023-11-29 06:38:45,401 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 41 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2023-11-29 06:38:45,401 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 06:38:45,402 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:38:45,402 INFO L85 PathProgramCache]: Analyzing trace with hash -2035063929, now seen corresponding path program 1 times [2023-11-29 06:38:45,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:38:45,402 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1128584184] [2023-11-29 06:38:45,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:38:45,402 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:38:45,409 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:38:45,409 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1619145591] [2023-11-29 06:38:45,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:38:45,409 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:38:45,410 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:38:45,410 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:38:45,411 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Waiting until timeout for monitored process [2023-11-29 06:38:45,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:38:45,469 INFO L262 TraceCheckSpWp]: Trace formula consists of 217 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-29 06:38:45,471 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:38:45,572 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 12 proven. 9 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2023-11-29 06:38:45,572 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:38:45,804 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:38:45,804 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1128584184] [2023-11-29 06:38:45,804 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:38:45,804 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1619145591] [2023-11-29 06:38:45,804 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1619145591] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:38:45,804 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:38:45,804 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2023-11-29 06:38:45,804 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2085233906] [2023-11-29 06:38:45,805 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:38:45,805 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-29 06:38:45,805 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:38:45,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-29 06:38:45,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=196, Unknown=0, NotChecked=0, Total=240 [2023-11-29 06:38:45,806 INFO L87 Difference]: Start difference. First operand 842 states and 1269 transitions. Second operand has 11 states, 10 states have (on average 7.1) internal successors, (71), 10 states have internal predecessors, (71), 4 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2023-11-29 06:38:47,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:38:47,614 INFO L93 Difference]: Finished difference Result 1576 states and 2280 transitions. [2023-11-29 06:38:47,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-29 06:38:47,615 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 7.1) internal successors, (71), 10 states have internal predecessors, (71), 4 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) Word has length 112 [2023-11-29 06:38:47,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:38:47,623 INFO L225 Difference]: With dead ends: 1576 [2023-11-29 06:38:47,623 INFO L226 Difference]: Without dead ends: 1574 [2023-11-29 06:38:47,624 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=159, Invalid=491, Unknown=0, NotChecked=0, Total=650 [2023-11-29 06:38:47,624 INFO L413 NwaCegarLoop]: 172 mSDtfsCounter, 957 mSDsluCounter, 812 mSDsCounter, 0 mSdLazyCounter, 1007 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 962 SdHoareTripleChecker+Valid, 984 SdHoareTripleChecker+Invalid, 1053 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 1007 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-11-29 06:38:47,624 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [962 Valid, 984 Invalid, 1053 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 1007 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-11-29 06:38:47,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1574 states. [2023-11-29 06:38:47,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1574 to 1210. [2023-11-29 06:38:47,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1210 states, 1062 states have (on average 1.6337099811676083) internal successors, (1735), 1117 states have internal predecessors, (1735), 90 states have call successors, (90), 2 states have call predecessors, (90), 2 states have return successors, (90), 90 states have call predecessors, (90), 90 states have call successors, (90) [2023-11-29 06:38:47,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1210 states to 1210 states and 1915 transitions. [2023-11-29 06:38:47,689 INFO L78 Accepts]: Start accepts. Automaton has 1210 states and 1915 transitions. Word has length 112 [2023-11-29 06:38:47,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:38:47,690 INFO L495 AbstractCegarLoop]: Abstraction has 1210 states and 1915 transitions. [2023-11-29 06:38:47,690 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 7.1) internal successors, (71), 10 states have internal predecessors, (71), 4 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2023-11-29 06:38:47,690 INFO L276 IsEmpty]: Start isEmpty. Operand 1210 states and 1915 transitions. [2023-11-29 06:38:47,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2023-11-29 06:38:47,691 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:38:47,691 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:38:47,695 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Ended with exit code 0 [2023-11-29 06:38:47,891 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40,42 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:38:47,891 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 06:38:47,892 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:38:47,892 INFO L85 PathProgramCache]: Analyzing trace with hash 1337527720, now seen corresponding path program 1 times [2023-11-29 06:38:47,892 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:38:47,892 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2040087647] [2023-11-29 06:38:47,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:38:47,892 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:38:47,900 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:38:47,900 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1597931901] [2023-11-29 06:38:47,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:38:47,901 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:38:47,901 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:38:47,902 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:38:47,904 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Waiting until timeout for monitored process [2023-11-29 06:38:47,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:38:47,963 INFO L262 TraceCheckSpWp]: Trace formula consists of 218 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-29 06:38:47,965 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:38:48,062 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 3 proven. 19 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2023-11-29 06:38:48,063 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:38:48,208 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 3 proven. 19 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2023-11-29 06:38:48,208 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:38:48,208 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2040087647] [2023-11-29 06:38:48,208 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:38:48,209 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1597931901] [2023-11-29 06:38:48,209 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1597931901] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 06:38:48,209 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 06:38:48,209 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2023-11-29 06:38:48,209 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [597690953] [2023-11-29 06:38:48,209 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 06:38:48,209 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-29 06:38:48,209 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:38:48,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-29 06:38:48,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2023-11-29 06:38:48,210 INFO L87 Difference]: Start difference. First operand 1210 states and 1915 transitions. Second operand has 13 states, 12 states have (on average 11.25) internal successors, (135), 11 states have internal predecessors, (135), 5 states have call successors, (18), 1 states have call predecessors, (18), 2 states have return successors, (19), 5 states have call predecessors, (19), 5 states have call successors, (19) [2023-11-29 06:38:52,582 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2023-11-29 06:38:56,619 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2023-11-29 06:39:01,096 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2023-11-29 06:39:05,145 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.05s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2023-11-29 06:39:09,194 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.05s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2023-11-29 06:39:13,241 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.05s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2023-11-29 06:39:17,287 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.05s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2023-11-29 06:39:21,337 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2023-11-29 06:39:25,364 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2023-11-29 06:39:29,396 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2023-11-29 06:39:33,430 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2023-11-29 06:39:37,457 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2023-11-29 06:39:37,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:39:37,526 INFO L93 Difference]: Finished difference Result 1931 states and 3025 transitions. [2023-11-29 06:39:37,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-29 06:39:37,527 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 11.25) internal successors, (135), 11 states have internal predecessors, (135), 5 states have call successors, (18), 1 states have call predecessors, (18), 2 states have return successors, (19), 5 states have call predecessors, (19), 5 states have call successors, (19) Word has length 113 [2023-11-29 06:39:37,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:39:37,535 INFO L225 Difference]: With dead ends: 1931 [2023-11-29 06:39:37,535 INFO L226 Difference]: Without dead ends: 1924 [2023-11-29 06:39:37,536 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 232 GetRequests, 213 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=102, Invalid=318, Unknown=0, NotChecked=0, Total=420 [2023-11-29 06:39:37,536 INFO L413 NwaCegarLoop]: 163 mSDtfsCounter, 1003 mSDsluCounter, 887 mSDsCounter, 0 mSdLazyCounter, 1146 mSolverCounterSat, 63 mSolverCounterUnsat, 12 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 48.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1003 SdHoareTripleChecker+Valid, 1050 SdHoareTripleChecker+Invalid, 1221 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 1146 IncrementalHoareTripleChecker+Invalid, 12 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 49.1s IncrementalHoareTripleChecker+Time [2023-11-29 06:39:37,536 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1003 Valid, 1050 Invalid, 1221 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 1146 Invalid, 12 Unknown, 0 Unchecked, 49.1s Time] [2023-11-29 06:39:37,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1924 states. [2023-11-29 06:39:37,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1924 to 1513. [2023-11-29 06:39:37,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1513 states, 1342 states have (on average 1.645305514157973) internal successors, (2208), 1397 states have internal predecessors, (2208), 113 states have call successors, (113), 2 states have call predecessors, (113), 2 states have return successors, (113), 113 states have call predecessors, (113), 113 states have call successors, (113) [2023-11-29 06:39:37,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1513 states to 1513 states and 2434 transitions. [2023-11-29 06:39:37,614 INFO L78 Accepts]: Start accepts. Automaton has 1513 states and 2434 transitions. Word has length 113 [2023-11-29 06:39:37,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:39:37,614 INFO L495 AbstractCegarLoop]: Abstraction has 1513 states and 2434 transitions. [2023-11-29 06:39:37,614 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 11.25) internal successors, (135), 11 states have internal predecessors, (135), 5 states have call successors, (18), 1 states have call predecessors, (18), 2 states have return successors, (19), 5 states have call predecessors, (19), 5 states have call successors, (19) [2023-11-29 06:39:37,615 INFO L276 IsEmpty]: Start isEmpty. Operand 1513 states and 2434 transitions. [2023-11-29 06:39:37,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2023-11-29 06:39:37,615 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:39:37,615 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:39:37,619 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Forceful destruction successful, exit code 0 [2023-11-29 06:39:37,815 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41,43 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:39:37,816 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 06:39:37,816 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:39:37,816 INFO L85 PathProgramCache]: Analyzing trace with hash -109099795, now seen corresponding path program 1 times [2023-11-29 06:39:37,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:39:37,816 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [107890749] [2023-11-29 06:39:37,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:39:37,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:39:37,823 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:39:37,824 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [401203200] [2023-11-29 06:39:37,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:39:37,824 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:39:37,824 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:39:37,825 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:39:37,825 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (44)] Waiting until timeout for monitored process [2023-11-29 06:39:37,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:39:37,880 INFO L262 TraceCheckSpWp]: Trace formula consists of 228 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-29 06:39:37,882 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:39:38,386 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2023-11-29 06:39:38,386 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:39:38,508 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:39:38,508 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [107890749] [2023-11-29 06:39:38,508 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:39:38,508 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [401203200] [2023-11-29 06:39:38,509 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [401203200] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:39:38,509 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:39:38,509 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2023-11-29 06:39:38,509 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1227060824] [2023-11-29 06:39:38,509 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:39:38,509 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 06:39:38,509 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:39:38,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 06:39:38,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2023-11-29 06:39:38,510 INFO L87 Difference]: Start difference. First operand 1513 states and 2434 transitions. Second operand has 10 states, 9 states have (on average 8.11111111111111) internal successors, (73), 9 states have internal predecessors, (73), 6 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 5 states have call predecessors, (11), 6 states have call successors, (11) [2023-11-29 06:39:39,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:39:39,813 INFO L93 Difference]: Finished difference Result 1665 states and 2620 transitions. [2023-11-29 06:39:39,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-29 06:39:39,814 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 8.11111111111111) internal successors, (73), 9 states have internal predecessors, (73), 6 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 5 states have call predecessors, (11), 6 states have call successors, (11) Word has length 119 [2023-11-29 06:39:39,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:39:39,822 INFO L225 Difference]: With dead ends: 1665 [2023-11-29 06:39:39,822 INFO L226 Difference]: Without dead ends: 1664 [2023-11-29 06:39:39,822 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=88, Invalid=292, Unknown=0, NotChecked=0, Total=380 [2023-11-29 06:39:39,823 INFO L413 NwaCegarLoop]: 84 mSDtfsCounter, 496 mSDsluCounter, 389 mSDsCounter, 0 mSdLazyCounter, 961 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 501 SdHoareTripleChecker+Valid, 473 SdHoareTripleChecker+Invalid, 994 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 961 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-11-29 06:39:39,823 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [501 Valid, 473 Invalid, 994 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 961 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-11-29 06:39:39,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1664 states. [2023-11-29 06:39:39,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1664 to 1513. [2023-11-29 06:39:39,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1513 states, 1342 states have (on average 1.6445603576751118) internal successors, (2207), 1397 states have internal predecessors, (2207), 113 states have call successors, (113), 2 states have call predecessors, (113), 2 states have return successors, (113), 113 states have call predecessors, (113), 113 states have call successors, (113) [2023-11-29 06:39:39,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1513 states to 1513 states and 2433 transitions. [2023-11-29 06:39:39,911 INFO L78 Accepts]: Start accepts. Automaton has 1513 states and 2433 transitions. Word has length 119 [2023-11-29 06:39:39,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:39:39,911 INFO L495 AbstractCegarLoop]: Abstraction has 1513 states and 2433 transitions. [2023-11-29 06:39:39,911 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 8.11111111111111) internal successors, (73), 9 states have internal predecessors, (73), 6 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 5 states have call predecessors, (11), 6 states have call successors, (11) [2023-11-29 06:39:39,911 INFO L276 IsEmpty]: Start isEmpty. Operand 1513 states and 2433 transitions. [2023-11-29 06:39:39,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2023-11-29 06:39:39,912 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:39:39,912 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:39:39,916 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (44)] Ended with exit code 0 [2023-11-29 06:39:40,112 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 44 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable42 [2023-11-29 06:39:40,113 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 06:39:40,113 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:39:40,113 INFO L85 PathProgramCache]: Analyzing trace with hash 912873735, now seen corresponding path program 1 times [2023-11-29 06:39:40,113 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:39:40,113 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1143090361] [2023-11-29 06:39:40,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:39:40,113 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:39:40,122 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:39:40,122 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [103860191] [2023-11-29 06:39:40,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:39:40,122 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:39:40,122 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:39:40,123 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:39:40,124 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Waiting until timeout for monitored process [2023-11-29 06:39:40,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:39:40,183 INFO L262 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-29 06:39:40,186 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:39:40,702 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2023-11-29 06:39:40,702 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:39:40,941 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:39:40,941 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1143090361] [2023-11-29 06:39:40,941 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:39:40,941 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [103860191] [2023-11-29 06:39:40,941 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [103860191] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:39:40,941 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:39:40,941 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2023-11-29 06:39:40,941 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2094376988] [2023-11-29 06:39:40,941 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:39:40,942 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 06:39:40,942 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:39:40,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 06:39:40,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2023-11-29 06:39:40,943 INFO L87 Difference]: Start difference. First operand 1513 states and 2433 transitions. Second operand has 10 states, 9 states have (on average 8.222222222222221) internal successors, (74), 9 states have internal predecessors, (74), 6 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 5 states have call predecessors, (11), 6 states have call successors, (11) [2023-11-29 06:39:42,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:39:42,555 INFO L93 Difference]: Finished difference Result 1665 states and 2619 transitions. [2023-11-29 06:39:42,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-29 06:39:42,555 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 8.222222222222221) internal successors, (74), 9 states have internal predecessors, (74), 6 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 5 states have call predecessors, (11), 6 states have call successors, (11) Word has length 120 [2023-11-29 06:39:42,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:39:42,562 INFO L225 Difference]: With dead ends: 1665 [2023-11-29 06:39:42,563 INFO L226 Difference]: Without dead ends: 1664 [2023-11-29 06:39:42,563 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=88, Invalid=292, Unknown=0, NotChecked=0, Total=380 [2023-11-29 06:39:42,564 INFO L413 NwaCegarLoop]: 84 mSDtfsCounter, 806 mSDsluCounter, 369 mSDsCounter, 0 mSdLazyCounter, 959 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 811 SdHoareTripleChecker+Valid, 453 SdHoareTripleChecker+Invalid, 1011 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 959 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-11-29 06:39:42,564 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [811 Valid, 453 Invalid, 1011 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 959 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-11-29 06:39:42,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1664 states. [2023-11-29 06:39:42,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1664 to 1513. [2023-11-29 06:39:42,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1513 states, 1342 states have (on average 1.6438152011922504) internal successors, (2206), 1397 states have internal predecessors, (2206), 113 states have call successors, (113), 2 states have call predecessors, (113), 2 states have return successors, (113), 113 states have call predecessors, (113), 113 states have call successors, (113) [2023-11-29 06:39:42,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1513 states to 1513 states and 2432 transitions. [2023-11-29 06:39:42,656 INFO L78 Accepts]: Start accepts. Automaton has 1513 states and 2432 transitions. Word has length 120 [2023-11-29 06:39:42,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:39:42,656 INFO L495 AbstractCegarLoop]: Abstraction has 1513 states and 2432 transitions. [2023-11-29 06:39:42,656 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 8.222222222222221) internal successors, (74), 9 states have internal predecessors, (74), 6 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 5 states have call predecessors, (11), 6 states have call successors, (11) [2023-11-29 06:39:42,656 INFO L276 IsEmpty]: Start isEmpty. Operand 1513 states and 2432 transitions. [2023-11-29 06:39:42,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2023-11-29 06:39:42,657 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:39:42,657 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:39:42,661 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Forceful destruction successful, exit code 0 [2023-11-29 06:39:42,857 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 45 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable43 [2023-11-29 06:39:42,857 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 06:39:42,858 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:39:42,858 INFO L85 PathProgramCache]: Analyzing trace with hash -1765685201, now seen corresponding path program 1 times [2023-11-29 06:39:42,858 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:39:42,858 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [330999052] [2023-11-29 06:39:42,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:39:42,858 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:39:42,864 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:39:42,865 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [267986710] [2023-11-29 06:39:42,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:39:42,865 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:39:42,865 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:39:42,866 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:39:42,866 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (46)] Waiting until timeout for monitored process [2023-11-29 06:39:42,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:39:42,924 INFO L262 TraceCheckSpWp]: Trace formula consists of 230 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-29 06:39:42,926 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:39:43,360 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2023-11-29 06:39:43,361 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:39:43,468 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:39:43,468 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [330999052] [2023-11-29 06:39:43,469 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:39:43,469 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [267986710] [2023-11-29 06:39:43,469 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [267986710] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:39:43,469 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:39:43,469 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2023-11-29 06:39:43,469 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1975726547] [2023-11-29 06:39:43,469 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:39:43,469 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 06:39:43,469 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:39:43,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 06:39:43,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2023-11-29 06:39:43,470 INFO L87 Difference]: Start difference. First operand 1513 states and 2432 transitions. Second operand has 9 states, 8 states have (on average 9.375) internal successors, (75), 9 states have internal predecessors, (75), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 4 states have call predecessors, (11), 5 states have call successors, (11) [2023-11-29 06:39:46,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:39:46,159 INFO L93 Difference]: Finished difference Result 1648 states and 2596 transitions. [2023-11-29 06:39:46,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-29 06:39:46,160 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 9.375) internal successors, (75), 9 states have internal predecessors, (75), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 4 states have call predecessors, (11), 5 states have call successors, (11) Word has length 121 [2023-11-29 06:39:46,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:39:46,166 INFO L225 Difference]: With dead ends: 1648 [2023-11-29 06:39:46,166 INFO L226 Difference]: Without dead ends: 1647 [2023-11-29 06:39:46,167 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 136 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=57, Invalid=183, Unknown=0, NotChecked=0, Total=240 [2023-11-29 06:39:46,167 INFO L413 NwaCegarLoop]: 101 mSDtfsCounter, 362 mSDsluCounter, 492 mSDsCounter, 0 mSdLazyCounter, 757 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 371 SdHoareTripleChecker+Valid, 593 SdHoareTripleChecker+Invalid, 770 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 757 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2023-11-29 06:39:46,167 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [371 Valid, 593 Invalid, 770 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 757 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2023-11-29 06:39:46,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1647 states. [2023-11-29 06:39:46,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1647 to 1513. [2023-11-29 06:39:46,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1513 states, 1342 states have (on average 1.6430700447093889) internal successors, (2205), 1397 states have internal predecessors, (2205), 113 states have call successors, (113), 2 states have call predecessors, (113), 2 states have return successors, (113), 113 states have call predecessors, (113), 113 states have call successors, (113) [2023-11-29 06:39:46,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1513 states to 1513 states and 2431 transitions. [2023-11-29 06:39:46,249 INFO L78 Accepts]: Start accepts. Automaton has 1513 states and 2431 transitions. Word has length 121 [2023-11-29 06:39:46,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:39:46,250 INFO L495 AbstractCegarLoop]: Abstraction has 1513 states and 2431 transitions. [2023-11-29 06:39:46,250 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 9.375) internal successors, (75), 9 states have internal predecessors, (75), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 4 states have call predecessors, (11), 5 states have call successors, (11) [2023-11-29 06:39:46,250 INFO L276 IsEmpty]: Start isEmpty. Operand 1513 states and 2431 transitions. [2023-11-29 06:39:46,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2023-11-29 06:39:46,251 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:39:46,251 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:39:46,255 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (46)] Ended with exit code 0 [2023-11-29 06:39:46,451 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 46 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable44 [2023-11-29 06:39:46,451 INFO L420 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 06:39:46,451 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:39:46,452 INFO L85 PathProgramCache]: Analyzing trace with hash 1098333705, now seen corresponding path program 1 times [2023-11-29 06:39:46,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:39:46,452 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [198475609] [2023-11-29 06:39:46,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:39:46,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:39:46,461 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:39:46,461 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [870372859] [2023-11-29 06:39:46,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:39:46,461 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:39:46,461 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:39:46,462 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:39:46,463 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (47)] Waiting until timeout for monitored process [2023-11-29 06:39:46,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:39:46,524 INFO L262 TraceCheckSpWp]: Trace formula consists of 231 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-29 06:39:46,526 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:39:46,950 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2023-11-29 06:39:46,950 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:39:47,092 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:39:47,092 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [198475609] [2023-11-29 06:39:47,092 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:39:47,092 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [870372859] [2023-11-29 06:39:47,092 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [870372859] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:39:47,092 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:39:47,092 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2023-11-29 06:39:47,092 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1640791062] [2023-11-29 06:39:47,092 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:39:47,093 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 06:39:47,093 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:39:47,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 06:39:47,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2023-11-29 06:39:47,093 INFO L87 Difference]: Start difference. First operand 1513 states and 2431 transitions. Second operand has 9 states, 8 states have (on average 9.5) internal successors, (76), 9 states have internal predecessors, (76), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 4 states have call predecessors, (11), 5 states have call successors, (11) [2023-11-29 06:39:49,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:39:49,255 INFO L93 Difference]: Finished difference Result 1647 states and 2595 transitions. [2023-11-29 06:39:49,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-29 06:39:49,256 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 9.5) internal successors, (76), 9 states have internal predecessors, (76), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 4 states have call predecessors, (11), 5 states have call successors, (11) Word has length 122 [2023-11-29 06:39:49,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:39:49,265 INFO L225 Difference]: With dead ends: 1647 [2023-11-29 06:39:49,266 INFO L226 Difference]: Without dead ends: 1646 [2023-11-29 06:39:49,266 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 138 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=57, Invalid=183, Unknown=0, NotChecked=0, Total=240 [2023-11-29 06:39:49,267 INFO L413 NwaCegarLoop]: 101 mSDtfsCounter, 474 mSDsluCounter, 432 mSDsCounter, 0 mSdLazyCounter, 751 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 483 SdHoareTripleChecker+Valid, 533 SdHoareTripleChecker+Invalid, 771 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 751 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2023-11-29 06:39:49,267 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [483 Valid, 533 Invalid, 771 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 751 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2023-11-29 06:39:49,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1646 states. [2023-11-29 06:39:49,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1646 to 1513. [2023-11-29 06:39:49,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1513 states, 1342 states have (on average 1.6423248882265276) internal successors, (2204), 1397 states have internal predecessors, (2204), 113 states have call successors, (113), 2 states have call predecessors, (113), 2 states have return successors, (113), 113 states have call predecessors, (113), 113 states have call successors, (113) [2023-11-29 06:39:49,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1513 states to 1513 states and 2430 transitions. [2023-11-29 06:39:49,351 INFO L78 Accepts]: Start accepts. Automaton has 1513 states and 2430 transitions. Word has length 122 [2023-11-29 06:39:49,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:39:49,351 INFO L495 AbstractCegarLoop]: Abstraction has 1513 states and 2430 transitions. [2023-11-29 06:39:49,352 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 9.5) internal successors, (76), 9 states have internal predecessors, (76), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 4 states have call predecessors, (11), 5 states have call successors, (11) [2023-11-29 06:39:49,352 INFO L276 IsEmpty]: Start isEmpty. Operand 1513 states and 2430 transitions. [2023-11-29 06:39:49,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2023-11-29 06:39:49,353 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:39:49,353 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:39:49,357 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (47)] Ended with exit code 0 [2023-11-29 06:39:49,553 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 47 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable45 [2023-11-29 06:39:49,554 INFO L420 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 06:39:49,554 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:39:49,554 INFO L85 PathProgramCache]: Analyzing trace with hash -311393423, now seen corresponding path program 1 times [2023-11-29 06:39:49,554 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:39:49,554 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [184556589] [2023-11-29 06:39:49,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:39:49,554 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:39:49,562 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:39:49,562 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1416586723] [2023-11-29 06:39:49,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:39:49,562 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:39:49,562 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:39:49,563 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:39:49,564 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (48)] Waiting until timeout for monitored process [2023-11-29 06:39:49,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:39:49,633 INFO L262 TraceCheckSpWp]: Trace formula consists of 232 conjuncts, 23 conjunts are in the unsatisfiable core [2023-11-29 06:39:49,635 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:39:53,167 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 6 proven. 34 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2023-11-29 06:39:53,167 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:39:53,738 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:39:53,738 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [184556589] [2023-11-29 06:39:53,738 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:39:53,738 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1416586723] [2023-11-29 06:39:53,738 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1416586723] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:39:53,738 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:39:53,738 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2023-11-29 06:39:53,739 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1640996489] [2023-11-29 06:39:53,739 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:39:53,739 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-29 06:39:53,739 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:39:53,740 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-29 06:39:53,740 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=321, Unknown=0, NotChecked=0, Total=380 [2023-11-29 06:39:53,740 INFO L87 Difference]: Start difference. First operand 1513 states and 2430 transitions. Second operand has 14 states, 13 states have (on average 6.153846153846154) internal successors, (80), 14 states have internal predecessors, (80), 6 states have call successors, (11), 1 states have call predecessors, (11), 3 states have return successors, (11), 5 states have call predecessors, (11), 6 states have call successors, (11) [2023-11-29 06:40:06,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:40:06,221 INFO L93 Difference]: Finished difference Result 2912 states and 4638 transitions. [2023-11-29 06:40:06,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-11-29 06:40:06,222 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 6.153846153846154) internal successors, (80), 14 states have internal predecessors, (80), 6 states have call successors, (11), 1 states have call predecessors, (11), 3 states have return successors, (11), 5 states have call predecessors, (11), 6 states have call successors, (11) Word has length 123 [2023-11-29 06:40:06,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:40:06,236 INFO L225 Difference]: With dead ends: 2912 [2023-11-29 06:40:06,236 INFO L226 Difference]: Without dead ends: 2911 [2023-11-29 06:40:06,238 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 185 GetRequests, 157 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 123 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=143, Invalid=727, Unknown=0, NotChecked=0, Total=870 [2023-11-29 06:40:06,238 INFO L413 NwaCegarLoop]: 96 mSDtfsCounter, 545 mSDsluCounter, 675 mSDsCounter, 0 mSdLazyCounter, 1922 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 555 SdHoareTripleChecker+Valid, 771 SdHoareTripleChecker+Invalid, 1935 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 1922 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.0s IncrementalHoareTripleChecker+Time [2023-11-29 06:40:06,238 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [555 Valid, 771 Invalid, 1935 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 1922 Invalid, 0 Unknown, 0 Unchecked, 11.0s Time] [2023-11-29 06:40:06,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2911 states. [2023-11-29 06:40:06,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2911 to 2479. [2023-11-29 06:40:06,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2479 states, 2236 states have (on average 1.6703935599284436) internal successors, (3735), 2291 states have internal predecessors, (3735), 185 states have call successors, (185), 2 states have call predecessors, (185), 2 states have return successors, (185), 185 states have call predecessors, (185), 185 states have call successors, (185) [2023-11-29 06:40:06,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2479 states to 2479 states and 4105 transitions. [2023-11-29 06:40:06,381 INFO L78 Accepts]: Start accepts. Automaton has 2479 states and 4105 transitions. Word has length 123 [2023-11-29 06:40:06,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:40:06,381 INFO L495 AbstractCegarLoop]: Abstraction has 2479 states and 4105 transitions. [2023-11-29 06:40:06,381 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 6.153846153846154) internal successors, (80), 14 states have internal predecessors, (80), 6 states have call successors, (11), 1 states have call predecessors, (11), 3 states have return successors, (11), 5 states have call predecessors, (11), 6 states have call successors, (11) [2023-11-29 06:40:06,382 INFO L276 IsEmpty]: Start isEmpty. Operand 2479 states and 4105 transitions. [2023-11-29 06:40:06,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2023-11-29 06:40:06,382 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:40:06,382 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:40:06,388 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (48)] Forceful destruction successful, exit code 0 [2023-11-29 06:40:06,582 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 48 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable46 [2023-11-29 06:40:06,583 INFO L420 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 06:40:06,583 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:40:06,583 INFO L85 PathProgramCache]: Analyzing trace with hash -1063261429, now seen corresponding path program 1 times [2023-11-29 06:40:06,583 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:40:06,583 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1360533375] [2023-11-29 06:40:06,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:40:06,583 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:40:06,590 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:40:06,590 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1584964593] [2023-11-29 06:40:06,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:40:06,590 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:40:06,590 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:40:06,591 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:40:06,592 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (49)] Waiting until timeout for monitored process [2023-11-29 06:40:06,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:40:06,661 INFO L262 TraceCheckSpWp]: Trace formula consists of 233 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-29 06:40:06,662 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:40:06,754 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2023-11-29 06:40:06,754 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:40:15,185 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2023-11-29 06:40:15,185 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:40:15,185 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1360533375] [2023-11-29 06:40:15,185 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:40:15,186 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1584964593] [2023-11-29 06:40:15,186 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1584964593] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 06:40:15,186 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 06:40:15,186 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 5 [2023-11-29 06:40:15,186 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [344481563] [2023-11-29 06:40:15,186 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 06:40:15,186 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 06:40:15,187 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:40:15,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 06:40:15,187 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=17, Unknown=2, NotChecked=0, Total=30 [2023-11-29 06:40:15,187 INFO L87 Difference]: Start difference. First operand 2479 states and 4105 transitions. Second operand has 6 states, 5 states have (on average 16.0) internal successors, (80), 6 states have internal predecessors, (80), 3 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2023-11-29 06:40:16,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:40:16,233 INFO L93 Difference]: Finished difference Result 2831 states and 4619 transitions. [2023-11-29 06:40:16,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 06:40:16,233 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 16.0) internal successors, (80), 6 states have internal predecessors, (80), 3 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 124 [2023-11-29 06:40:16,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:40:16,240 INFO L225 Difference]: With dead ends: 2831 [2023-11-29 06:40:16,240 INFO L226 Difference]: Without dead ends: 2824 [2023-11-29 06:40:16,240 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 247 GetRequests, 241 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 8.4s TimeCoverageRelationStatistics Valid=15, Invalid=25, Unknown=2, NotChecked=0, Total=42 [2023-11-29 06:40:16,241 INFO L413 NwaCegarLoop]: 161 mSDtfsCounter, 103 mSDsluCounter, 392 mSDsCounter, 0 mSdLazyCounter, 339 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 553 SdHoareTripleChecker+Invalid, 347 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 339 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-29 06:40:16,241 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [108 Valid, 553 Invalid, 347 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 339 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-29 06:40:16,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2824 states. [2023-11-29 06:40:16,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2824 to 2771. [2023-11-29 06:40:16,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2771 states, 2503 states have (on average 1.6687974430683181) internal successors, (4177), 2558 states have internal predecessors, (4177), 210 states have call successors, (210), 2 states have call predecessors, (210), 2 states have return successors, (210), 210 states have call predecessors, (210), 210 states have call successors, (210) [2023-11-29 06:40:16,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2771 states to 2771 states and 4597 transitions. [2023-11-29 06:40:16,393 INFO L78 Accepts]: Start accepts. Automaton has 2771 states and 4597 transitions. Word has length 124 [2023-11-29 06:40:16,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:40:16,393 INFO L495 AbstractCegarLoop]: Abstraction has 2771 states and 4597 transitions. [2023-11-29 06:40:16,393 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 16.0) internal successors, (80), 6 states have internal predecessors, (80), 3 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2023-11-29 06:40:16,393 INFO L276 IsEmpty]: Start isEmpty. Operand 2771 states and 4597 transitions. [2023-11-29 06:40:16,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2023-11-29 06:40:16,393 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:40:16,394 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:40:16,398 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (49)] Ended with exit code 0 [2023-11-29 06:40:16,594 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 49 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable47 [2023-11-29 06:40:16,594 INFO L420 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 06:40:16,594 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:40:16,595 INFO L85 PathProgramCache]: Analyzing trace with hash -545325671, now seen corresponding path program 1 times [2023-11-29 06:40:16,595 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:40:16,595 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2089079084] [2023-11-29 06:40:16,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:40:16,595 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:40:16,602 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:40:16,603 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [132802258] [2023-11-29 06:40:16,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:40:16,603 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:40:16,603 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:40:16,604 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:40:16,605 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (50)] Waiting until timeout for monitored process [2023-11-29 06:40:16,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:40:16,661 INFO L262 TraceCheckSpWp]: Trace formula consists of 243 conjuncts, 20 conjunts are in the unsatisfiable core [2023-11-29 06:40:16,662 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:40:17,283 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 6 proven. 34 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2023-11-29 06:40:17,283 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:40:25,647 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:40:25,647 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2089079084] [2023-11-29 06:40:25,647 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:40:25,648 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [132802258] [2023-11-29 06:40:25,648 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [132802258] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:40:25,648 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:40:25,648 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2023-11-29 06:40:25,648 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1632793371] [2023-11-29 06:40:25,648 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:40:25,648 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-29 06:40:25,648 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:40:25,649 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-29 06:40:25,649 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=166, Unknown=2, NotChecked=0, Total=210 [2023-11-29 06:40:25,649 INFO L87 Difference]: Start difference. First operand 2771 states and 4597 transitions. Second operand has 11 states, 9 states have (on average 8.777777777777779) internal successors, (79), 9 states have internal predecessors, (79), 6 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 6 states have call predecessors, (12), 6 states have call successors, (12) [2023-11-29 06:40:27,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:40:27,631 INFO L93 Difference]: Finished difference Result 2822 states and 4622 transitions. [2023-11-29 06:40:27,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-29 06:40:27,632 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 8.777777777777779) internal successors, (79), 9 states have internal predecessors, (79), 6 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 6 states have call predecessors, (12), 6 states have call successors, (12) Word has length 130 [2023-11-29 06:40:27,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:40:27,638 INFO L225 Difference]: With dead ends: 2822 [2023-11-29 06:40:27,638 INFO L226 Difference]: Without dead ends: 2820 [2023-11-29 06:40:27,640 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 170 GetRequests, 151 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 8.5s TimeCoverageRelationStatistics Valid=89, Invalid=329, Unknown=2, NotChecked=0, Total=420 [2023-11-29 06:40:27,640 INFO L413 NwaCegarLoop]: 69 mSDtfsCounter, 463 mSDsluCounter, 405 mSDsCounter, 0 mSdLazyCounter, 1198 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 468 SdHoareTripleChecker+Valid, 474 SdHoareTripleChecker+Invalid, 1223 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 1198 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-11-29 06:40:27,640 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [468 Valid, 474 Invalid, 1223 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 1198 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2023-11-29 06:40:27,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2820 states. [2023-11-29 06:40:27,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2820 to 2771. [2023-11-29 06:40:27,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2771 states, 2503 states have (on average 1.6664003196164603) internal successors, (4171), 2558 states have internal predecessors, (4171), 210 states have call successors, (210), 2 states have call predecessors, (210), 2 states have return successors, (210), 210 states have call predecessors, (210), 210 states have call successors, (210) [2023-11-29 06:40:27,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2771 states to 2771 states and 4591 transitions. [2023-11-29 06:40:27,819 INFO L78 Accepts]: Start accepts. Automaton has 2771 states and 4591 transitions. Word has length 130 [2023-11-29 06:40:27,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:40:27,819 INFO L495 AbstractCegarLoop]: Abstraction has 2771 states and 4591 transitions. [2023-11-29 06:40:27,819 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 8.777777777777779) internal successors, (79), 9 states have internal predecessors, (79), 6 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 6 states have call predecessors, (12), 6 states have call successors, (12) [2023-11-29 06:40:27,819 INFO L276 IsEmpty]: Start isEmpty. Operand 2771 states and 4591 transitions. [2023-11-29 06:40:27,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2023-11-29 06:40:27,820 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:40:27,820 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:40:27,825 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (50)] Ended with exit code 0 [2023-11-29 06:40:28,020 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 50 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable48 [2023-11-29 06:40:28,021 INFO L420 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 06:40:28,021 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:40:28,021 INFO L85 PathProgramCache]: Analyzing trace with hash 274773480, now seen corresponding path program 1 times [2023-11-29 06:40:28,021 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:40:28,021 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1380631506] [2023-11-29 06:40:28,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:40:28,021 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:40:28,028 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:40:28,028 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2071912279] [2023-11-29 06:40:28,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:40:28,028 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:40:28,028 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:40:28,029 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:40:28,030 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (51)] Waiting until timeout for monitored process [2023-11-29 06:40:28,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:40:28,095 INFO L262 TraceCheckSpWp]: Trace formula consists of 244 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-29 06:40:28,097 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:40:28,700 INFO L134 CoverageAnalysis]: Checked inductivity of 137 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2023-11-29 06:40:28,700 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:40:33,019 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:40:33,019 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1380631506] [2023-11-29 06:40:33,019 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:40:33,019 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2071912279] [2023-11-29 06:40:33,019 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2071912279] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:40:33,019 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:40:33,019 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2023-11-29 06:40:33,020 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1558915800] [2023-11-29 06:40:33,020 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:40:33,020 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 06:40:33,020 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:40:33,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 06:40:33,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=136, Unknown=1, NotChecked=0, Total=182 [2023-11-29 06:40:33,021 INFO L87 Difference]: Start difference. First operand 2771 states and 4591 transitions. Second operand has 10 states, 9 states have (on average 8.88888888888889) internal successors, (80), 10 states have internal predecessors, (80), 5 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 4 states have call predecessors, (12), 5 states have call successors, (12) [2023-11-29 06:40:35,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:40:35,691 INFO L93 Difference]: Finished difference Result 2820 states and 4616 transitions. [2023-11-29 06:40:35,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-29 06:40:35,691 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 8.88888888888889) internal successors, (80), 10 states have internal predecessors, (80), 5 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 4 states have call predecessors, (12), 5 states have call successors, (12) Word has length 131 [2023-11-29 06:40:35,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:40:35,696 INFO L225 Difference]: With dead ends: 2820 [2023-11-29 06:40:35,697 INFO L226 Difference]: Without dead ends: 2818 [2023-11-29 06:40:35,697 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 170 GetRequests, 154 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=74, Invalid=231, Unknown=1, NotChecked=0, Total=306 [2023-11-29 06:40:35,698 INFO L413 NwaCegarLoop]: 89 mSDtfsCounter, 412 mSDsluCounter, 476 mSDsCounter, 0 mSdLazyCounter, 982 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 421 SdHoareTripleChecker+Valid, 565 SdHoareTripleChecker+Invalid, 999 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 982 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2023-11-29 06:40:35,698 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [421 Valid, 565 Invalid, 999 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 982 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2023-11-29 06:40:35,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2818 states. [2023-11-29 06:40:35,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2818 to 2771. [2023-11-29 06:40:35,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2771 states, 2503 states have (on average 1.6640031961646025) internal successors, (4165), 2558 states have internal predecessors, (4165), 210 states have call successors, (210), 2 states have call predecessors, (210), 2 states have return successors, (210), 210 states have call predecessors, (210), 210 states have call successors, (210) [2023-11-29 06:40:35,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2771 states to 2771 states and 4585 transitions. [2023-11-29 06:40:35,852 INFO L78 Accepts]: Start accepts. Automaton has 2771 states and 4585 transitions. Word has length 131 [2023-11-29 06:40:35,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:40:35,852 INFO L495 AbstractCegarLoop]: Abstraction has 2771 states and 4585 transitions. [2023-11-29 06:40:35,852 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 8.88888888888889) internal successors, (80), 10 states have internal predecessors, (80), 5 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 4 states have call predecessors, (12), 5 states have call successors, (12) [2023-11-29 06:40:35,852 INFO L276 IsEmpty]: Start isEmpty. Operand 2771 states and 4585 transitions. [2023-11-29 06:40:35,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2023-11-29 06:40:35,853 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:40:35,853 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:40:35,857 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (51)] Ended with exit code 0 [2023-11-29 06:40:36,053 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 51 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable49 [2023-11-29 06:40:36,053 INFO L420 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 06:40:36,054 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:40:36,054 INFO L85 PathProgramCache]: Analyzing trace with hash -71956613, now seen corresponding path program 1 times [2023-11-29 06:40:36,054 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:40:36,054 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [453675214] [2023-11-29 06:40:36,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:40:36,054 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:40:36,063 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:40:36,064 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2061888822] [2023-11-29 06:40:36,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:40:36,064 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:40:36,064 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:40:36,065 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:40:36,066 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (52)] Waiting until timeout for monitored process [2023-11-29 06:40:36,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:40:36,129 INFO L262 TraceCheckSpWp]: Trace formula consists of 245 conjuncts, 14 conjunts are in the unsatisfiable core [2023-11-29 06:40:36,131 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:40:36,714 INFO L134 CoverageAnalysis]: Checked inductivity of 138 backedges. 3 proven. 30 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2023-11-29 06:40:36,714 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:40:40,892 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:40:40,892 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [453675214] [2023-11-29 06:40:40,892 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:40:40,892 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2061888822] [2023-11-29 06:40:40,892 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2061888822] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:40:40,892 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:40:40,892 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2023-11-29 06:40:40,892 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2125917604] [2023-11-29 06:40:40,892 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:40:40,892 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 06:40:40,893 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:40:40,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 06:40:40,893 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=103, Unknown=1, NotChecked=0, Total=132 [2023-11-29 06:40:40,893 INFO L87 Difference]: Start difference. First operand 2771 states and 4585 transitions. Second operand has 9 states, 8 states have (on average 10.125) internal successors, (81), 8 states have internal predecessors, (81), 5 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 5 states have call predecessors, (12), 5 states have call successors, (12) [2023-11-29 06:40:42,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:40:42,561 INFO L93 Difference]: Finished difference Result 2833 states and 4632 transitions. [2023-11-29 06:40:42,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-29 06:40:42,562 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 10.125) internal successors, (81), 8 states have internal predecessors, (81), 5 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 5 states have call predecessors, (12), 5 states have call successors, (12) Word has length 132 [2023-11-29 06:40:42,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:40:42,568 INFO L225 Difference]: With dead ends: 2833 [2023-11-29 06:40:42,568 INFO L226 Difference]: Without dead ends: 2832 [2023-11-29 06:40:42,569 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 170 GetRequests, 158 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=38, Invalid=143, Unknown=1, NotChecked=0, Total=182 [2023-11-29 06:40:42,569 INFO L413 NwaCegarLoop]: 100 mSDtfsCounter, 339 mSDsluCounter, 414 mSDsCounter, 0 mSdLazyCounter, 887 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 350 SdHoareTripleChecker+Valid, 514 SdHoareTripleChecker+Invalid, 897 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 887 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-11-29 06:40:42,569 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [350 Valid, 514 Invalid, 897 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 887 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-11-29 06:40:42,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2832 states. [2023-11-29 06:40:42,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2832 to 2771. [2023-11-29 06:40:42,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2771 states, 2503 states have (on average 1.663603675589293) internal successors, (4164), 2558 states have internal predecessors, (4164), 210 states have call successors, (210), 2 states have call predecessors, (210), 2 states have return successors, (210), 210 states have call predecessors, (210), 210 states have call successors, (210) [2023-11-29 06:40:42,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2771 states to 2771 states and 4584 transitions. [2023-11-29 06:40:42,725 INFO L78 Accepts]: Start accepts. Automaton has 2771 states and 4584 transitions. Word has length 132 [2023-11-29 06:40:42,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:40:42,726 INFO L495 AbstractCegarLoop]: Abstraction has 2771 states and 4584 transitions. [2023-11-29 06:40:42,726 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 10.125) internal successors, (81), 8 states have internal predecessors, (81), 5 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 5 states have call predecessors, (12), 5 states have call successors, (12) [2023-11-29 06:40:42,726 INFO L276 IsEmpty]: Start isEmpty. Operand 2771 states and 4584 transitions. [2023-11-29 06:40:42,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2023-11-29 06:40:42,727 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:40:42,727 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:40:42,732 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (52)] Ended with exit code 0 [2023-11-29 06:40:42,927 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50,52 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:40:42,928 INFO L420 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 06:40:42,928 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:40:42,928 INFO L85 PathProgramCache]: Analyzing trace with hash 2064312394, now seen corresponding path program 1 times [2023-11-29 06:40:42,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:40:42,928 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [113892295] [2023-11-29 06:40:42,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:40:42,928 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:40:42,940 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:40:42,940 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1707591296] [2023-11-29 06:40:42,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:40:42,940 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:40:42,941 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:40:42,941 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:40:42,942 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (53)] Waiting until timeout for monitored process [2023-11-29 06:40:43,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:40:43,007 INFO L262 TraceCheckSpWp]: Trace formula consists of 246 conjuncts, 14 conjunts are in the unsatisfiable core [2023-11-29 06:40:43,009 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:40:43,581 INFO L134 CoverageAnalysis]: Checked inductivity of 139 backedges. 3 proven. 31 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2023-11-29 06:40:43,581 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:40:47,997 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:40:47,997 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [113892295] [2023-11-29 06:40:47,997 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:40:47,997 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1707591296] [2023-11-29 06:40:47,997 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1707591296] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:40:47,997 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:40:47,998 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2023-11-29 06:40:47,998 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1405070324] [2023-11-29 06:40:47,998 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:40:47,998 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 06:40:47,998 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:40:47,999 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 06:40:47,999 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=103, Unknown=1, NotChecked=0, Total=132 [2023-11-29 06:40:47,999 INFO L87 Difference]: Start difference. First operand 2771 states and 4584 transitions. Second operand has 9 states, 8 states have (on average 10.25) internal successors, (82), 8 states have internal predecessors, (82), 5 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 5 states have call predecessors, (12), 5 states have call successors, (12) [2023-11-29 06:40:49,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:40:49,653 INFO L93 Difference]: Finished difference Result 2833 states and 4631 transitions. [2023-11-29 06:40:49,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-29 06:40:49,654 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 10.25) internal successors, (82), 8 states have internal predecessors, (82), 5 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 5 states have call predecessors, (12), 5 states have call successors, (12) Word has length 133 [2023-11-29 06:40:49,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:40:49,660 INFO L225 Difference]: With dead ends: 2833 [2023-11-29 06:40:49,660 INFO L226 Difference]: Without dead ends: 2832 [2023-11-29 06:40:49,661 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 160 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=38, Invalid=143, Unknown=1, NotChecked=0, Total=182 [2023-11-29 06:40:49,662 INFO L413 NwaCegarLoop]: 101 mSDtfsCounter, 285 mSDsluCounter, 438 mSDsCounter, 0 mSdLazyCounter, 901 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 296 SdHoareTripleChecker+Valid, 539 SdHoareTripleChecker+Invalid, 907 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 901 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-11-29 06:40:49,662 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [296 Valid, 539 Invalid, 907 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 901 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-11-29 06:40:49,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2832 states. [2023-11-29 06:40:49,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2832 to 2771. [2023-11-29 06:40:49,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2771 states, 2503 states have (on average 1.663204155013983) internal successors, (4163), 2558 states have internal predecessors, (4163), 210 states have call successors, (210), 2 states have call predecessors, (210), 2 states have return successors, (210), 210 states have call predecessors, (210), 210 states have call successors, (210) [2023-11-29 06:40:49,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2771 states to 2771 states and 4583 transitions. [2023-11-29 06:40:49,855 INFO L78 Accepts]: Start accepts. Automaton has 2771 states and 4583 transitions. Word has length 133 [2023-11-29 06:40:49,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:40:49,855 INFO L495 AbstractCegarLoop]: Abstraction has 2771 states and 4583 transitions. [2023-11-29 06:40:49,855 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 10.25) internal successors, (82), 8 states have internal predecessors, (82), 5 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 5 states have call predecessors, (12), 5 states have call successors, (12) [2023-11-29 06:40:49,855 INFO L276 IsEmpty]: Start isEmpty. Operand 2771 states and 4583 transitions. [2023-11-29 06:40:49,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2023-11-29 06:40:49,856 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:40:49,856 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:40:49,860 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (53)] Ended with exit code 0 [2023-11-29 06:40:50,056 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 53 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable51 [2023-11-29 06:40:50,057 INFO L420 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 06:40:50,057 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:40:50,057 INFO L85 PathProgramCache]: Analyzing trace with hash -430825123, now seen corresponding path program 1 times [2023-11-29 06:40:50,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:40:50,057 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [248890804] [2023-11-29 06:40:50,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:40:50,057 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:40:50,067 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:40:50,067 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [837036316] [2023-11-29 06:40:50,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:40:50,067 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:40:50,067 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:40:50,068 INFO L229 MonitoredProcess]: Starting monitored process 54 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:40:50,070 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (54)] Waiting until timeout for monitored process [2023-11-29 06:40:50,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:40:50,136 INFO L262 TraceCheckSpWp]: Trace formula consists of 247 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-29 06:40:50,138 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:40:50,481 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 6 proven. 29 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2023-11-29 06:40:50,482 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:40:50,737 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:40:50,738 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [248890804] [2023-11-29 06:40:50,738 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:40:50,738 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [837036316] [2023-11-29 06:40:50,738 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [837036316] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:40:50,738 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:40:50,738 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2023-11-29 06:40:50,738 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [265422922] [2023-11-29 06:40:50,738 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:40:50,738 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 06:40:50,739 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:40:50,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 06:40:50,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2023-11-29 06:40:50,739 INFO L87 Difference]: Start difference. First operand 2771 states and 4583 transitions. Second operand has 9 states, 8 states have (on average 10.375) internal successors, (83), 8 states have internal predecessors, (83), 4 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2023-11-29 06:40:52,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:40:52,088 INFO L93 Difference]: Finished difference Result 2856 states and 4640 transitions. [2023-11-29 06:40:52,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 06:40:52,088 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 10.375) internal successors, (83), 8 states have internal predecessors, (83), 4 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) Word has length 134 [2023-11-29 06:40:52,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:40:52,093 INFO L225 Difference]: With dead ends: 2856 [2023-11-29 06:40:52,093 INFO L226 Difference]: Without dead ends: 2851 [2023-11-29 06:40:52,093 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2023-11-29 06:40:52,094 INFO L413 NwaCegarLoop]: 105 mSDtfsCounter, 302 mSDsluCounter, 461 mSDsCounter, 0 mSdLazyCounter, 793 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 312 SdHoareTripleChecker+Valid, 566 SdHoareTripleChecker+Invalid, 804 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 793 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-11-29 06:40:52,094 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [312 Valid, 566 Invalid, 804 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 793 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-11-29 06:40:52,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2851 states. [2023-11-29 06:40:52,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2851 to 2771. [2023-11-29 06:40:52,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2771 states, 2503 states have (on average 1.6564123052337196) internal successors, (4146), 2558 states have internal predecessors, (4146), 210 states have call successors, (210), 2 states have call predecessors, (210), 2 states have return successors, (210), 210 states have call predecessors, (210), 210 states have call successors, (210) [2023-11-29 06:40:52,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2771 states to 2771 states and 4566 transitions. [2023-11-29 06:40:52,252 INFO L78 Accepts]: Start accepts. Automaton has 2771 states and 4566 transitions. Word has length 134 [2023-11-29 06:40:52,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:40:52,252 INFO L495 AbstractCegarLoop]: Abstraction has 2771 states and 4566 transitions. [2023-11-29 06:40:52,252 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 10.375) internal successors, (83), 8 states have internal predecessors, (83), 4 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2023-11-29 06:40:52,252 INFO L276 IsEmpty]: Start isEmpty. Operand 2771 states and 4566 transitions. [2023-11-29 06:40:52,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2023-11-29 06:40:52,253 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:40:52,253 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:40:52,257 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (54)] Ended with exit code 0 [2023-11-29 06:40:52,453 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 54 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable52 [2023-11-29 06:40:52,453 INFO L420 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 06:40:52,454 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:40:52,454 INFO L85 PathProgramCache]: Analyzing trace with hash -470676820, now seen corresponding path program 1 times [2023-11-29 06:40:52,454 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:40:52,454 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [531218798] [2023-11-29 06:40:52,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:40:52,454 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:40:52,462 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:40:52,462 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [784535366] [2023-11-29 06:40:52,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:40:52,462 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:40:52,462 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:40:52,463 INFO L229 MonitoredProcess]: Starting monitored process 55 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:40:52,464 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (55)] Waiting until timeout for monitored process [2023-11-29 06:40:52,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:40:52,529 INFO L262 TraceCheckSpWp]: Trace formula consists of 248 conjuncts, 23 conjunts are in the unsatisfiable core [2023-11-29 06:40:52,531 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:40:53,812 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 6 proven. 39 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2023-11-29 06:40:53,813 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:40:53,984 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:40:53,984 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [531218798] [2023-11-29 06:40:53,984 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:40:53,985 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [784535366] [2023-11-29 06:40:53,985 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [784535366] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:40:53,985 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:40:53,985 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2023-11-29 06:40:53,985 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1867824328] [2023-11-29 06:40:53,985 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:40:53,985 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-29 06:40:53,985 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:40:53,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-29 06:40:53,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=163, Unknown=0, NotChecked=0, Total=210 [2023-11-29 06:40:53,986 INFO L87 Difference]: Start difference. First operand 2771 states and 4566 transitions. Second operand has 13 states, 11 states have (on average 7.636363636363637) internal successors, (84), 11 states have internal predecessors, (84), 6 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 6 states have call predecessors, (12), 6 states have call successors, (12) [2023-11-29 06:40:58,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:40:58,022 INFO L93 Difference]: Finished difference Result 2831 states and 4613 transitions. [2023-11-29 06:40:58,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-29 06:40:58,023 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 7.636363636363637) internal successors, (84), 11 states have internal predecessors, (84), 6 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 6 states have call predecessors, (12), 6 states have call successors, (12) Word has length 135 [2023-11-29 06:40:58,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:40:58,029 INFO L225 Difference]: With dead ends: 2831 [2023-11-29 06:40:58,029 INFO L226 Difference]: Without dead ends: 2830 [2023-11-29 06:40:58,030 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=74, Invalid=268, Unknown=0, NotChecked=0, Total=342 [2023-11-29 06:40:58,030 INFO L413 NwaCegarLoop]: 71 mSDtfsCounter, 355 mSDsluCounter, 303 mSDsCounter, 0 mSdLazyCounter, 1615 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 368 SdHoareTripleChecker+Valid, 374 SdHoareTripleChecker+Invalid, 1622 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1615 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2023-11-29 06:40:58,031 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [368 Valid, 374 Invalid, 1622 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1615 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2023-11-29 06:40:58,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2830 states. [2023-11-29 06:40:58,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2830 to 2771. [2023-11-29 06:40:58,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2771 states, 2503 states have (on average 1.6552137435077907) internal successors, (4143), 2558 states have internal predecessors, (4143), 210 states have call successors, (210), 2 states have call predecessors, (210), 2 states have return successors, (210), 210 states have call predecessors, (210), 210 states have call successors, (210) [2023-11-29 06:40:58,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2771 states to 2771 states and 4563 transitions. [2023-11-29 06:40:58,237 INFO L78 Accepts]: Start accepts. Automaton has 2771 states and 4563 transitions. Word has length 135 [2023-11-29 06:40:58,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:40:58,238 INFO L495 AbstractCegarLoop]: Abstraction has 2771 states and 4563 transitions. [2023-11-29 06:40:58,238 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 7.636363636363637) internal successors, (84), 11 states have internal predecessors, (84), 6 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 6 states have call predecessors, (12), 6 states have call successors, (12) [2023-11-29 06:40:58,238 INFO L276 IsEmpty]: Start isEmpty. Operand 2771 states and 4563 transitions. [2023-11-29 06:40:58,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2023-11-29 06:40:58,238 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:40:58,238 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:40:58,244 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (55)] Ended with exit code 0 [2023-11-29 06:40:58,439 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 55 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable53 [2023-11-29 06:40:58,439 INFO L420 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 06:40:58,439 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:40:58,439 INFO L85 PathProgramCache]: Analyzing trace with hash -424488445, now seen corresponding path program 1 times [2023-11-29 06:40:58,439 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:40:58,439 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1743646675] [2023-11-29 06:40:58,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:40:58,440 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:40:58,447 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:40:58,447 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [334912574] [2023-11-29 06:40:58,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:40:58,447 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:40:58,447 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:40:58,448 INFO L229 MonitoredProcess]: Starting monitored process 56 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:40:58,449 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (56)] Waiting until timeout for monitored process [2023-11-29 06:40:58,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:40:58,520 INFO L262 TraceCheckSpWp]: Trace formula consists of 258 conjuncts, 31 conjunts are in the unsatisfiable core [2023-11-29 06:40:58,521 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:41:00,332 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 6 proven. 44 refuted. 0 times theorem prover too weak. 117 trivial. 0 not checked. [2023-11-29 06:41:00,332 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:41:05,002 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:41:05,003 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1743646675] [2023-11-29 06:41:05,003 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:41:05,003 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [334912574] [2023-11-29 06:41:05,003 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [334912574] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:41:05,003 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:41:05,003 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2023-11-29 06:41:05,003 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1219077749] [2023-11-29 06:41:05,003 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:41:05,004 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-29 06:41:05,004 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:41:05,004 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-29 06:41:05,005 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=275, Unknown=1, NotChecked=0, Total=342 [2023-11-29 06:41:05,005 INFO L87 Difference]: Start difference. First operand 2771 states and 4563 transitions. Second operand has 14 states, 13 states have (on average 6.538461538461538) internal successors, (85), 13 states have internal predecessors, (85), 7 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 5 states have call predecessors, (13), 7 states have call successors, (13) [2023-11-29 06:41:10,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:41:10,921 INFO L93 Difference]: Finished difference Result 2816 states and 4590 transitions. [2023-11-29 06:41:10,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-29 06:41:10,922 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 6.538461538461538) internal successors, (85), 13 states have internal predecessors, (85), 7 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 5 states have call predecessors, (13), 7 states have call successors, (13) Word has length 141 [2023-11-29 06:41:10,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:41:10,925 INFO L225 Difference]: With dead ends: 2816 [2023-11-29 06:41:10,926 INFO L226 Difference]: Without dead ends: 2813 [2023-11-29 06:41:10,926 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 194 GetRequests, 169 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 5.7s TimeCoverageRelationStatistics Valid=141, Invalid=560, Unknown=1, NotChecked=0, Total=702 [2023-11-29 06:41:10,927 INFO L413 NwaCegarLoop]: 59 mSDtfsCounter, 886 mSDsluCounter, 409 mSDsCounter, 0 mSdLazyCounter, 1506 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 891 SdHoareTripleChecker+Valid, 468 SdHoareTripleChecker+Invalid, 1564 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 1506 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2023-11-29 06:41:10,927 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [891 Valid, 468 Invalid, 1564 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 1506 Invalid, 0 Unknown, 0 Unchecked, 4.8s Time] [2023-11-29 06:41:10,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2813 states. [2023-11-29 06:41:11,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2813 to 2771. [2023-11-29 06:41:11,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2771 states, 2503 states have (on average 1.6524170994806233) internal successors, (4136), 2558 states have internal predecessors, (4136), 210 states have call successors, (210), 2 states have call predecessors, (210), 2 states have return successors, (210), 210 states have call predecessors, (210), 210 states have call successors, (210) [2023-11-29 06:41:11,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2771 states to 2771 states and 4556 transitions. [2023-11-29 06:41:11,099 INFO L78 Accepts]: Start accepts. Automaton has 2771 states and 4556 transitions. Word has length 141 [2023-11-29 06:41:11,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:41:11,099 INFO L495 AbstractCegarLoop]: Abstraction has 2771 states and 4556 transitions. [2023-11-29 06:41:11,099 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 6.538461538461538) internal successors, (85), 13 states have internal predecessors, (85), 7 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 5 states have call predecessors, (13), 7 states have call successors, (13) [2023-11-29 06:41:11,099 INFO L276 IsEmpty]: Start isEmpty. Operand 2771 states and 4556 transitions. [2023-11-29 06:41:11,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2023-11-29 06:41:11,100 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:41:11,100 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:41:11,104 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (56)] Ended with exit code 0 [2023-11-29 06:41:11,300 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54,56 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:41:11,301 INFO L420 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 06:41:11,301 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:41:11,301 INFO L85 PathProgramCache]: Analyzing trace with hash -274239797, now seen corresponding path program 1 times [2023-11-29 06:41:11,301 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:41:11,301 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2098409224] [2023-11-29 06:41:11,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:41:11,301 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:41:11,309 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:41:11,309 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1185949705] [2023-11-29 06:41:11,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:41:11,309 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:41:11,309 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:41:11,310 INFO L229 MonitoredProcess]: Starting monitored process 57 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:41:11,311 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (57)] Waiting until timeout for monitored process [2023-11-29 06:41:11,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:41:11,377 INFO L262 TraceCheckSpWp]: Trace formula consists of 259 conjuncts, 14 conjunts are in the unsatisfiable core [2023-11-29 06:41:11,379 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:41:11,709 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 12 proven. 27 refuted. 0 times theorem prover too weak. 129 trivial. 0 not checked. [2023-11-29 06:41:11,710 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:41:16,190 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:41:16,190 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2098409224] [2023-11-29 06:41:16,190 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:41:16,190 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1185949705] [2023-11-29 06:41:16,190 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1185949705] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:41:16,190 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:41:16,191 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2023-11-29 06:41:16,191 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2029458855] [2023-11-29 06:41:16,191 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:41:16,191 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 06:41:16,191 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:41:16,192 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 06:41:16,192 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=81, Unknown=1, NotChecked=0, Total=110 [2023-11-29 06:41:16,192 INFO L87 Difference]: Start difference. First operand 2771 states and 4556 transitions. Second operand has 8 states, 7 states have (on average 12.285714285714286) internal successors, (86), 8 states have internal predecessors, (86), 4 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 3 states have call predecessors, (13), 4 states have call successors, (13) [2023-11-29 06:41:16,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:41:16,894 INFO L93 Difference]: Finished difference Result 2851 states and 4613 transitions. [2023-11-29 06:41:16,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 06:41:16,895 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 12.285714285714286) internal successors, (86), 8 states have internal predecessors, (86), 4 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 3 states have call predecessors, (13), 4 states have call successors, (13) Word has length 142 [2023-11-29 06:41:16,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:41:16,899 INFO L225 Difference]: With dead ends: 2851 [2023-11-29 06:41:16,900 INFO L226 Difference]: Without dead ends: 2850 [2023-11-29 06:41:16,901 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 189 GetRequests, 179 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=32, Invalid=99, Unknown=1, NotChecked=0, Total=132 [2023-11-29 06:41:16,901 INFO L413 NwaCegarLoop]: 146 mSDtfsCounter, 91 mSDsluCounter, 650 mSDsCounter, 0 mSdLazyCounter, 611 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 796 SdHoareTripleChecker+Invalid, 611 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 611 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-29 06:41:16,901 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 796 Invalid, 611 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 611 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-29 06:41:16,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2850 states. [2023-11-29 06:41:17,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2850 to 2771. [2023-11-29 06:41:17,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2771 states, 2503 states have (on average 1.649620455453456) internal successors, (4129), 2558 states have internal predecessors, (4129), 210 states have call successors, (210), 2 states have call predecessors, (210), 2 states have return successors, (210), 210 states have call predecessors, (210), 210 states have call successors, (210) [2023-11-29 06:41:17,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2771 states to 2771 states and 4549 transitions. [2023-11-29 06:41:17,090 INFO L78 Accepts]: Start accepts. Automaton has 2771 states and 4549 transitions. Word has length 142 [2023-11-29 06:41:17,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:41:17,091 INFO L495 AbstractCegarLoop]: Abstraction has 2771 states and 4549 transitions. [2023-11-29 06:41:17,091 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 12.285714285714286) internal successors, (86), 8 states have internal predecessors, (86), 4 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 3 states have call predecessors, (13), 4 states have call successors, (13) [2023-11-29 06:41:17,091 INFO L276 IsEmpty]: Start isEmpty. Operand 2771 states and 4549 transitions. [2023-11-29 06:41:17,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2023-11-29 06:41:17,092 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:41:17,092 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:41:17,097 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (57)] Forceful destruction successful, exit code 0 [2023-11-29 06:41:17,292 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 57 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable55 [2023-11-29 06:41:17,292 INFO L420 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 06:41:17,293 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:41:17,293 INFO L85 PathProgramCache]: Analyzing trace with hash 88500997, now seen corresponding path program 1 times [2023-11-29 06:41:17,293 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:41:17,293 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1507140647] [2023-11-29 06:41:17,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:41:17,293 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:41:17,301 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:41:17,301 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [466502954] [2023-11-29 06:41:17,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:41:17,301 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:41:17,301 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:41:17,302 INFO L229 MonitoredProcess]: Starting monitored process 58 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:41:17,303 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (58)] Waiting until timeout for monitored process [2023-11-29 06:41:17,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:41:17,370 INFO L262 TraceCheckSpWp]: Trace formula consists of 260 conjuncts, 24 conjunts are in the unsatisfiable core [2023-11-29 06:41:17,372 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:41:18,462 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 18 proven. 31 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2023-11-29 06:41:18,462 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:41:22,845 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:41:22,846 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1507140647] [2023-11-29 06:41:22,846 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:41:22,846 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [466502954] [2023-11-29 06:41:22,846 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [466502954] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:41:22,846 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:41:22,846 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2023-11-29 06:41:22,846 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2052852085] [2023-11-29 06:41:22,846 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:41:22,846 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-29 06:41:22,846 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:41:22,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-29 06:41:22,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=324, Unknown=1, NotChecked=0, Total=380 [2023-11-29 06:41:22,847 INFO L87 Difference]: Start difference. First operand 2771 states and 4549 transitions. Second operand has 14 states, 12 states have (on average 7.25) internal successors, (87), 13 states have internal predecessors, (87), 5 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 6 states have call predecessors, (13), 5 states have call successors, (13) [2023-11-29 06:41:28,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:41:28,325 INFO L93 Difference]: Finished difference Result 2826 states and 4596 transitions. [2023-11-29 06:41:28,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-29 06:41:28,326 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 7.25) internal successors, (87), 13 states have internal predecessors, (87), 5 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 6 states have call predecessors, (13), 5 states have call successors, (13) Word has length 143 [2023-11-29 06:41:28,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:41:28,329 INFO L225 Difference]: With dead ends: 2826 [2023-11-29 06:41:28,329 INFO L226 Difference]: Without dead ends: 2825 [2023-11-29 06:41:28,329 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 200 GetRequests, 172 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 4.7s TimeCoverageRelationStatistics Valid=133, Invalid=736, Unknown=1, NotChecked=0, Total=870 [2023-11-29 06:41:28,330 INFO L413 NwaCegarLoop]: 75 mSDtfsCounter, 599 mSDsluCounter, 510 mSDsCounter, 0 mSdLazyCounter, 1688 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 604 SdHoareTripleChecker+Valid, 585 SdHoareTripleChecker+Invalid, 1726 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 1688 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2023-11-29 06:41:28,330 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [604 Valid, 585 Invalid, 1726 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 1688 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time] [2023-11-29 06:41:28,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2825 states. [2023-11-29 06:41:28,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2825 to 2771. [2023-11-29 06:41:28,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2771 states, 2503 states have (on average 1.648421893727527) internal successors, (4126), 2558 states have internal predecessors, (4126), 210 states have call successors, (210), 2 states have call predecessors, (210), 2 states have return successors, (210), 210 states have call predecessors, (210), 210 states have call successors, (210) [2023-11-29 06:41:28,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2771 states to 2771 states and 4546 transitions. [2023-11-29 06:41:28,529 INFO L78 Accepts]: Start accepts. Automaton has 2771 states and 4546 transitions. Word has length 143 [2023-11-29 06:41:28,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:41:28,529 INFO L495 AbstractCegarLoop]: Abstraction has 2771 states and 4546 transitions. [2023-11-29 06:41:28,529 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 12 states have (on average 7.25) internal successors, (87), 13 states have internal predecessors, (87), 5 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 6 states have call predecessors, (13), 5 states have call successors, (13) [2023-11-29 06:41:28,529 INFO L276 IsEmpty]: Start isEmpty. Operand 2771 states and 4546 transitions. [2023-11-29 06:41:28,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2023-11-29 06:41:28,530 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:41:28,530 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:41:28,534 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (58)] Ended with exit code 0 [2023-11-29 06:41:28,730 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56,58 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:41:28,730 INFO L420 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 06:41:28,730 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:41:28,730 INFO L85 PathProgramCache]: Analyzing trace with hash -1551436275, now seen corresponding path program 1 times [2023-11-29 06:41:28,731 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:41:28,731 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [828495432] [2023-11-29 06:41:28,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:41:28,731 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:41:28,738 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:41:28,738 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1866564307] [2023-11-29 06:41:28,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:41:28,739 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:41:28,739 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:41:28,739 INFO L229 MonitoredProcess]: Starting monitored process 59 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:41:28,740 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (59)] Waiting until timeout for monitored process [2023-11-29 06:41:28,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:41:28,800 INFO L262 TraceCheckSpWp]: Trace formula consists of 261 conjuncts, 21 conjunts are in the unsatisfiable core [2023-11-29 06:41:28,802 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:41:29,725 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 12 proven. 38 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2023-11-29 06:41:29,725 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:41:31,475 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:41:31,475 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [828495432] [2023-11-29 06:41:31,475 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:41:31,475 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1866564307] [2023-11-29 06:41:31,476 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1866564307] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:41:31,476 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:41:31,476 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2023-11-29 06:41:31,476 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1368780817] [2023-11-29 06:41:31,476 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:41:31,476 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 06:41:31,476 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:41:31,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 06:41:31,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2023-11-29 06:41:31,477 INFO L87 Difference]: Start difference. First operand 2771 states and 4546 transitions. Second operand has 12 states, 10 states have (on average 8.8) internal successors, (88), 12 states have internal predecessors, (88), 5 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 5 states have call predecessors, (13), 5 states have call successors, (13) [2023-11-29 06:41:35,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:41:35,089 INFO L93 Difference]: Finished difference Result 2825 states and 4593 transitions. [2023-11-29 06:41:35,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-29 06:41:35,090 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 8.8) internal successors, (88), 12 states have internal predecessors, (88), 5 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 5 states have call predecessors, (13), 5 states have call successors, (13) Word has length 144 [2023-11-29 06:41:35,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:41:35,093 INFO L225 Difference]: With dead ends: 2825 [2023-11-29 06:41:35,093 INFO L226 Difference]: Without dead ends: 2824 [2023-11-29 06:41:35,094 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 201 GetRequests, 178 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=102, Invalid=498, Unknown=0, NotChecked=0, Total=600 [2023-11-29 06:41:35,094 INFO L413 NwaCegarLoop]: 91 mSDtfsCounter, 617 mSDsluCounter, 471 mSDsCounter, 0 mSdLazyCounter, 1298 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 622 SdHoareTripleChecker+Valid, 562 SdHoareTripleChecker+Invalid, 1339 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 1298 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2023-11-29 06:41:35,094 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [622 Valid, 562 Invalid, 1339 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 1298 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2023-11-29 06:41:35,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2824 states. [2023-11-29 06:41:35,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2824 to 2771. [2023-11-29 06:41:35,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2771 states, 2503 states have (on average 1.647223332001598) internal successors, (4123), 2558 states have internal predecessors, (4123), 210 states have call successors, (210), 2 states have call predecessors, (210), 2 states have return successors, (210), 210 states have call predecessors, (210), 210 states have call successors, (210) [2023-11-29 06:41:35,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2771 states to 2771 states and 4543 transitions. [2023-11-29 06:41:35,276 INFO L78 Accepts]: Start accepts. Automaton has 2771 states and 4543 transitions. Word has length 144 [2023-11-29 06:41:35,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:41:35,276 INFO L495 AbstractCegarLoop]: Abstraction has 2771 states and 4543 transitions. [2023-11-29 06:41:35,276 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 8.8) internal successors, (88), 12 states have internal predecessors, (88), 5 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 5 states have call predecessors, (13), 5 states have call successors, (13) [2023-11-29 06:41:35,276 INFO L276 IsEmpty]: Start isEmpty. Operand 2771 states and 4543 transitions. [2023-11-29 06:41:35,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2023-11-29 06:41:35,277 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:41:35,277 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:41:35,282 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (59)] Ended with exit code 0 [2023-11-29 06:41:35,478 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57,59 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:41:35,478 INFO L420 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 06:41:35,478 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:41:35,478 INFO L85 PathProgramCache]: Analyzing trace with hash -849884153, now seen corresponding path program 1 times [2023-11-29 06:41:35,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:41:35,478 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [264846856] [2023-11-29 06:41:35,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:41:35,479 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:41:35,486 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:41:35,486 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1285203097] [2023-11-29 06:41:35,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:41:35,486 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:41:35,486 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:41:35,487 INFO L229 MonitoredProcess]: Starting monitored process 60 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:41:35,489 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (60)] Waiting until timeout for monitored process [2023-11-29 06:41:35,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:41:35,556 INFO L262 TraceCheckSpWp]: Trace formula consists of 262 conjuncts, 30 conjunts are in the unsatisfiable core [2023-11-29 06:41:35,558 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:41:40,247 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 6 proven. 36 refuted. 0 times theorem prover too weak. 129 trivial. 0 not checked. [2023-11-29 06:41:40,247 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:41:40,288 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:41:40,289 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [264846856] [2023-11-29 06:41:40,289 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:41:40,289 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1285203097] [2023-11-29 06:41:40,289 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1285203097] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:41:40,289 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:41:40,289 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2023-11-29 06:41:40,289 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [684938634] [2023-11-29 06:41:40,289 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:41:40,290 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 06:41:40,290 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:41:40,290 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 06:41:40,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2023-11-29 06:41:40,290 INFO L87 Difference]: Start difference. First operand 2771 states and 4543 transitions. Second operand has 12 states, 11 states have (on average 8.090909090909092) internal successors, (89), 11 states have internal predecessors, (89), 5 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 5 states have call predecessors, (13), 5 states have call successors, (13) [2023-11-29 06:41:45,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:41:45,963 INFO L93 Difference]: Finished difference Result 2808 states and 4568 transitions. [2023-11-29 06:41:45,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-29 06:41:45,964 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 8.090909090909092) internal successors, (89), 11 states have internal predecessors, (89), 5 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 5 states have call predecessors, (13), 5 states have call successors, (13) Word has length 145 [2023-11-29 06:41:45,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:41:45,967 INFO L225 Difference]: With dead ends: 2808 [2023-11-29 06:41:45,967 INFO L226 Difference]: Without dead ends: 2807 [2023-11-29 06:41:45,967 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 139 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=63, Invalid=317, Unknown=0, NotChecked=0, Total=380 [2023-11-29 06:41:45,968 INFO L413 NwaCegarLoop]: 82 mSDtfsCounter, 425 mSDsluCounter, 404 mSDsCounter, 0 mSdLazyCounter, 1541 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 430 SdHoareTripleChecker+Valid, 486 SdHoareTripleChecker+Invalid, 1564 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 1541 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2023-11-29 06:41:45,968 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [430 Valid, 486 Invalid, 1564 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 1541 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2023-11-29 06:41:45,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2807 states. [2023-11-29 06:41:46,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2807 to 2771. [2023-11-29 06:41:46,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2771 states, 2503 states have (on average 1.6460247702756692) internal successors, (4120), 2558 states have internal predecessors, (4120), 210 states have call successors, (210), 2 states have call predecessors, (210), 2 states have return successors, (210), 210 states have call predecessors, (210), 210 states have call successors, (210) [2023-11-29 06:41:46,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2771 states to 2771 states and 4540 transitions. [2023-11-29 06:41:46,163 INFO L78 Accepts]: Start accepts. Automaton has 2771 states and 4540 transitions. Word has length 145 [2023-11-29 06:41:46,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:41:46,164 INFO L495 AbstractCegarLoop]: Abstraction has 2771 states and 4540 transitions. [2023-11-29 06:41:46,164 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 8.090909090909092) internal successors, (89), 11 states have internal predecessors, (89), 5 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 5 states have call predecessors, (13), 5 states have call successors, (13) [2023-11-29 06:41:46,164 INFO L276 IsEmpty]: Start isEmpty. Operand 2771 states and 4540 transitions. [2023-11-29 06:41:46,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2023-11-29 06:41:46,165 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:41:46,165 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:41:46,169 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (60)] Ended with exit code 0 [2023-11-29 06:41:46,365 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58,60 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:41:46,366 INFO L420 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 06:41:46,366 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:41:46,366 INFO L85 PathProgramCache]: Analyzing trace with hash -576604849, now seen corresponding path program 1 times [2023-11-29 06:41:46,366 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:41:46,366 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1328566371] [2023-11-29 06:41:46,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:41:46,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:41:46,374 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:41:46,374 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [710771919] [2023-11-29 06:41:46,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:41:46,374 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:41:46,374 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:41:46,375 INFO L229 MonitoredProcess]: Starting monitored process 61 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:41:46,376 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (61)] Waiting until timeout for monitored process [2023-11-29 06:41:46,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:41:46,441 INFO L262 TraceCheckSpWp]: Trace formula consists of 263 conjuncts, 20 conjunts are in the unsatisfiable core [2023-11-29 06:41:46,444 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:41:46,911 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 12 proven. 31 refuted. 0 times theorem prover too weak. 129 trivial. 0 not checked. [2023-11-29 06:41:46,911 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:41:47,279 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:41:47,279 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1328566371] [2023-11-29 06:41:47,279 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:41:47,279 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [710771919] [2023-11-29 06:41:47,279 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [710771919] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:41:47,279 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:41:47,280 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2023-11-29 06:41:47,280 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1584854413] [2023-11-29 06:41:47,280 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:41:47,280 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 06:41:47,280 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:41:47,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 06:41:47,281 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2023-11-29 06:41:47,281 INFO L87 Difference]: Start difference. First operand 2771 states and 4540 transitions. Second operand has 10 states, 9 states have (on average 10.0) internal successors, (90), 10 states have internal predecessors, (90), 5 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 5 states have call successors, (13) [2023-11-29 06:41:48,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:41:48,473 INFO L93 Difference]: Finished difference Result 2807 states and 4565 transitions. [2023-11-29 06:41:48,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-29 06:41:48,474 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 10.0) internal successors, (90), 10 states have internal predecessors, (90), 5 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 5 states have call successors, (13) Word has length 146 [2023-11-29 06:41:48,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:41:48,478 INFO L225 Difference]: With dead ends: 2807 [2023-11-29 06:41:48,478 INFO L226 Difference]: Without dead ends: 2806 [2023-11-29 06:41:48,478 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 143 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2023-11-29 06:41:48,479 INFO L413 NwaCegarLoop]: 137 mSDtfsCounter, 99 mSDsluCounter, 669 mSDsCounter, 0 mSdLazyCounter, 822 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 806 SdHoareTripleChecker+Invalid, 822 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 822 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-11-29 06:41:48,479 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [104 Valid, 806 Invalid, 822 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 822 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-11-29 06:41:48,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2806 states. [2023-11-29 06:41:48,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2806 to 2771. [2023-11-29 06:41:48,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2771 states, 2503 states have (on average 1.6448262085497403) internal successors, (4117), 2558 states have internal predecessors, (4117), 210 states have call successors, (210), 2 states have call predecessors, (210), 2 states have return successors, (210), 210 states have call predecessors, (210), 210 states have call successors, (210) [2023-11-29 06:41:48,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2771 states to 2771 states and 4537 transitions. [2023-11-29 06:41:48,650 INFO L78 Accepts]: Start accepts. Automaton has 2771 states and 4537 transitions. Word has length 146 [2023-11-29 06:41:48,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:41:48,650 INFO L495 AbstractCegarLoop]: Abstraction has 2771 states and 4537 transitions. [2023-11-29 06:41:48,650 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 10.0) internal successors, (90), 10 states have internal predecessors, (90), 5 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 5 states have call successors, (13) [2023-11-29 06:41:48,651 INFO L276 IsEmpty]: Start isEmpty. Operand 2771 states and 4537 transitions. [2023-11-29 06:41:48,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2023-11-29 06:41:48,651 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:41:48,651 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:41:48,657 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (61)] Ended with exit code 0 [2023-11-29 06:41:48,852 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 61 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable59 [2023-11-29 06:41:48,852 INFO L420 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 06:41:48,852 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:41:48,852 INFO L85 PathProgramCache]: Analyzing trace with hash -2060720629, now seen corresponding path program 1 times [2023-11-29 06:41:48,852 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:41:48,852 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1291317399] [2023-11-29 06:41:48,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:41:48,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:41:48,860 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:41:48,860 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1196999240] [2023-11-29 06:41:48,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:41:48,860 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:41:48,860 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:41:48,861 INFO L229 MonitoredProcess]: Starting monitored process 62 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:41:48,862 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (62)] Waiting until timeout for monitored process [2023-11-29 06:41:48,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:41:48,931 INFO L262 TraceCheckSpWp]: Trace formula consists of 266 conjuncts, 46 conjunts are in the unsatisfiable core [2023-11-29 06:41:48,933 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:41:50,895 INFO L134 CoverageAnalysis]: Checked inductivity of 175 backedges. 30 proven. 55 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2023-11-29 06:41:50,895 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:41:51,123 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:41:51,123 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1291317399] [2023-11-29 06:41:51,123 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:41:51,123 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1196999240] [2023-11-29 06:41:51,123 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1196999240] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:41:51,123 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:41:51,123 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2023-11-29 06:41:51,123 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [512889804] [2023-11-29 06:41:51,123 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:41:51,124 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-11-29 06:41:51,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:41:51,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-11-29 06:41:51,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=278, Unknown=0, NotChecked=0, Total=342 [2023-11-29 06:41:51,125 INFO L87 Difference]: Start difference. First operand 2771 states and 4537 transitions. Second operand has 17 states, 16 states have (on average 6.0) internal successors, (96), 16 states have internal predecessors, (96), 6 states have call successors, (13), 1 states have call predecessors, (13), 3 states have return successors, (13), 6 states have call predecessors, (13), 6 states have call successors, (13) [2023-11-29 06:41:53,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:41:53,920 INFO L93 Difference]: Finished difference Result 2808 states and 4564 transitions. [2023-11-29 06:41:53,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-11-29 06:41:53,921 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 6.0) internal successors, (96), 16 states have internal predecessors, (96), 6 states have call successors, (13), 1 states have call predecessors, (13), 3 states have return successors, (13), 6 states have call predecessors, (13), 6 states have call successors, (13) Word has length 149 [2023-11-29 06:41:53,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:41:53,923 INFO L225 Difference]: With dead ends: 2808 [2023-11-29 06:41:53,923 INFO L226 Difference]: Without dead ends: 2804 [2023-11-29 06:41:53,924 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 163 GetRequests, 141 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 87 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=96, Invalid=456, Unknown=0, NotChecked=0, Total=552 [2023-11-29 06:41:53,924 INFO L413 NwaCegarLoop]: 45 mSDtfsCounter, 387 mSDsluCounter, 338 mSDsCounter, 0 mSdLazyCounter, 2069 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 398 SdHoareTripleChecker+Valid, 383 SdHoareTripleChecker+Invalid, 2089 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 2069 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2023-11-29 06:41:53,924 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [398 Valid, 383 Invalid, 2089 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 2069 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2023-11-29 06:41:53,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2804 states. [2023-11-29 06:41:54,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2804 to 2771. [2023-11-29 06:41:54,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2771 states, 2503 states have (on average 1.6400319616460248) internal successors, (4105), 2558 states have internal predecessors, (4105), 210 states have call successors, (210), 2 states have call predecessors, (210), 2 states have return successors, (210), 210 states have call predecessors, (210), 210 states have call successors, (210) [2023-11-29 06:41:54,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2771 states to 2771 states and 4525 transitions. [2023-11-29 06:41:54,092 INFO L78 Accepts]: Start accepts. Automaton has 2771 states and 4525 transitions. Word has length 149 [2023-11-29 06:41:54,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:41:54,092 INFO L495 AbstractCegarLoop]: Abstraction has 2771 states and 4525 transitions. [2023-11-29 06:41:54,092 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 6.0) internal successors, (96), 16 states have internal predecessors, (96), 6 states have call successors, (13), 1 states have call predecessors, (13), 3 states have return successors, (13), 6 states have call predecessors, (13), 6 states have call successors, (13) [2023-11-29 06:41:54,092 INFO L276 IsEmpty]: Start isEmpty. Operand 2771 states and 4525 transitions. [2023-11-29 06:41:54,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2023-11-29 06:41:54,093 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:41:54,093 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:41:54,097 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (62)] Ended with exit code 0 [2023-11-29 06:41:54,293 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 62 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable60 [2023-11-29 06:41:54,293 INFO L420 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 06:41:54,293 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:41:54,293 INFO L85 PathProgramCache]: Analyzing trace with hash 542170067, now seen corresponding path program 1 times [2023-11-29 06:41:54,294 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:41:54,294 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1971497177] [2023-11-29 06:41:54,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:41:54,294 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:41:54,301 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:41:54,301 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [789090057] [2023-11-29 06:41:54,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:41:54,301 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:41:54,301 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:41:54,302 INFO L229 MonitoredProcess]: Starting monitored process 63 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:41:54,302 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (63)] Waiting until timeout for monitored process [2023-11-29 06:41:54,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:41:54,365 INFO L262 TraceCheckSpWp]: Trace formula consists of 267 conjuncts, 19 conjunts are in the unsatisfiable core [2023-11-29 06:41:54,367 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:41:55,110 INFO L134 CoverageAnalysis]: Checked inductivity of 176 backedges. 0 proven. 47 refuted. 0 times theorem prover too weak. 129 trivial. 0 not checked. [2023-11-29 06:41:55,110 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:41:55,216 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:41:55,216 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1971497177] [2023-11-29 06:41:55,216 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:41:55,216 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [789090057] [2023-11-29 06:41:55,216 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [789090057] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:41:55,216 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:41:55,216 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2023-11-29 06:41:55,216 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [57081407] [2023-11-29 06:41:55,217 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:41:55,217 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-29 06:41:55,217 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:41:55,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-29 06:41:55,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2023-11-29 06:41:55,218 INFO L87 Difference]: Start difference. First operand 2771 states and 4525 transitions. Second operand has 11 states, 10 states have (on average 9.4) internal successors, (94), 11 states have internal predecessors, (94), 5 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 5 states have call successors, (13) [2023-11-29 06:41:57,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:41:57,393 INFO L93 Difference]: Finished difference Result 2802 states and 4550 transitions. [2023-11-29 06:41:57,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-29 06:41:57,394 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 9.4) internal successors, (94), 11 states have internal predecessors, (94), 5 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 5 states have call successors, (13) Word has length 150 [2023-11-29 06:41:57,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:41:57,396 INFO L225 Difference]: With dead ends: 2802 [2023-11-29 06:41:57,396 INFO L226 Difference]: Without dead ends: 2801 [2023-11-29 06:41:57,397 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=62, Invalid=210, Unknown=0, NotChecked=0, Total=272 [2023-11-29 06:41:57,397 INFO L413 NwaCegarLoop]: 103 mSDtfsCounter, 436 mSDsluCounter, 461 mSDsCounter, 0 mSdLazyCounter, 1117 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 445 SdHoareTripleChecker+Valid, 564 SdHoareTripleChecker+Invalid, 1138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 1117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2023-11-29 06:41:57,397 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [445 Valid, 564 Invalid, 1138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 1117 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2023-11-29 06:41:57,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2801 states. [2023-11-29 06:41:57,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2801 to 2771. [2023-11-29 06:41:57,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2771 states, 2503 states have (on average 1.638833399920096) internal successors, (4102), 2558 states have internal predecessors, (4102), 210 states have call successors, (210), 2 states have call predecessors, (210), 2 states have return successors, (210), 210 states have call predecessors, (210), 210 states have call successors, (210) [2023-11-29 06:41:57,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2771 states to 2771 states and 4522 transitions. [2023-11-29 06:41:57,569 INFO L78 Accepts]: Start accepts. Automaton has 2771 states and 4522 transitions. Word has length 150 [2023-11-29 06:41:57,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:41:57,570 INFO L495 AbstractCegarLoop]: Abstraction has 2771 states and 4522 transitions. [2023-11-29 06:41:57,570 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 9.4) internal successors, (94), 11 states have internal predecessors, (94), 5 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 5 states have call successors, (13) [2023-11-29 06:41:57,570 INFO L276 IsEmpty]: Start isEmpty. Operand 2771 states and 4522 transitions. [2023-11-29 06:41:57,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2023-11-29 06:41:57,571 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:41:57,571 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:41:57,575 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (63)] Forceful destruction successful, exit code 0 [2023-11-29 06:41:57,771 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61,63 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:41:57,771 INFO L420 AbstractCegarLoop]: === Iteration 63 === Targeting ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 06:41:57,772 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:41:57,772 INFO L85 PathProgramCache]: Analyzing trace with hash -1840979369, now seen corresponding path program 1 times [2023-11-29 06:41:57,772 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:41:57,772 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1504578646] [2023-11-29 06:41:57,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:41:57,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:41:57,779 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:41:57,779 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1553779568] [2023-11-29 06:41:57,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:41:57,780 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:41:57,780 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:41:57,780 INFO L229 MonitoredProcess]: Starting monitored process 64 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:41:57,781 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (64)] Waiting until timeout for monitored process [2023-11-29 06:41:57,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:41:57,845 INFO L262 TraceCheckSpWp]: Trace formula consists of 271 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-29 06:41:57,847 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:41:58,612 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 51 refuted. 0 times theorem prover too weak. 129 trivial. 0 not checked. [2023-11-29 06:41:58,612 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:42:02,808 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:42:02,808 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1504578646] [2023-11-29 06:42:02,808 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:42:02,808 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1553779568] [2023-11-29 06:42:02,808 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1553779568] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:42:02,808 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:42:02,808 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2023-11-29 06:42:02,808 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [822847115] [2023-11-29 06:42:02,808 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:42:02,809 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-29 06:42:02,809 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:42:02,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-29 06:42:02,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=119, Unknown=1, NotChecked=0, Total=156 [2023-11-29 06:42:02,810 INFO L87 Difference]: Start difference. First operand 2771 states and 4522 transitions. Second operand has 11 states, 10 states have (on average 9.8) internal successors, (98), 11 states have internal predecessors, (98), 5 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 5 states have call successors, (13) [2023-11-29 06:42:05,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:42:05,575 INFO L93 Difference]: Finished difference Result 3032 states and 4848 transitions. [2023-11-29 06:42:05,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-29 06:42:05,576 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 9.8) internal successors, (98), 11 states have internal predecessors, (98), 5 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 5 states have call successors, (13) Word has length 154 [2023-11-29 06:42:05,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:42:05,579 INFO L225 Difference]: With dead ends: 3032 [2023-11-29 06:42:05,579 INFO L226 Difference]: Without dead ends: 3029 [2023-11-29 06:42:05,580 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 176 GetRequests, 157 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=114, Invalid=305, Unknown=1, NotChecked=0, Total=420 [2023-11-29 06:42:05,580 INFO L413 NwaCegarLoop]: 97 mSDtfsCounter, 538 mSDsluCounter, 459 mSDsCounter, 0 mSdLazyCounter, 1253 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 547 SdHoareTripleChecker+Valid, 556 SdHoareTripleChecker+Invalid, 1276 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 1253 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2023-11-29 06:42:05,580 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [547 Valid, 556 Invalid, 1276 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 1253 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2023-11-29 06:42:05,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3029 states. [2023-11-29 06:42:05,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3029 to 2963. [2023-11-29 06:42:05,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2963 states, 2679 states have (on average 1.631578947368421) internal successors, (4371), 2734 states have internal predecessors, (4371), 226 states have call successors, (226), 2 states have call predecessors, (226), 2 states have return successors, (226), 226 states have call predecessors, (226), 226 states have call successors, (226) [2023-11-29 06:42:05,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2963 states to 2963 states and 4823 transitions. [2023-11-29 06:42:05,762 INFO L78 Accepts]: Start accepts. Automaton has 2963 states and 4823 transitions. Word has length 154 [2023-11-29 06:42:05,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:42:05,763 INFO L495 AbstractCegarLoop]: Abstraction has 2963 states and 4823 transitions. [2023-11-29 06:42:05,763 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 9.8) internal successors, (98), 11 states have internal predecessors, (98), 5 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 5 states have call successors, (13) [2023-11-29 06:42:05,763 INFO L276 IsEmpty]: Start isEmpty. Operand 2963 states and 4823 transitions. [2023-11-29 06:42:05,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2023-11-29 06:42:05,763 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:42:05,764 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:42:05,769 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (64)] Forceful destruction successful, exit code 0 [2023-11-29 06:42:05,964 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62,64 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:42:05,964 INFO L420 AbstractCegarLoop]: === Iteration 64 === Targeting ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 06:42:05,964 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:42:05,964 INFO L85 PathProgramCache]: Analyzing trace with hash 1175308507, now seen corresponding path program 1 times [2023-11-29 06:42:05,965 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:42:05,965 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2562055] [2023-11-29 06:42:05,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:42:05,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:42:05,972 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:42:05,973 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [275299773] [2023-11-29 06:42:05,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:42:05,973 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:42:05,973 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:42:05,974 INFO L229 MonitoredProcess]: Starting monitored process 65 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:42:05,974 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (65)] Waiting until timeout for monitored process [2023-11-29 06:42:06,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:42:06,048 INFO L262 TraceCheckSpWp]: Trace formula consists of 275 conjuncts, 26 conjunts are in the unsatisfiable core [2023-11-29 06:42:06,050 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:42:10,321 INFO L134 CoverageAnalysis]: Checked inductivity of 184 backedges. 30 proven. 55 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2023-11-29 06:42:10,321 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:42:10,725 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:42:10,725 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2562055] [2023-11-29 06:42:10,725 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:42:10,725 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [275299773] [2023-11-29 06:42:10,725 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [275299773] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:42:10,725 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:42:10,725 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2023-11-29 06:42:10,725 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1774321278] [2023-11-29 06:42:10,725 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:42:10,726 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-29 06:42:10,726 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:42:10,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-29 06:42:10,727 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=221, Unknown=0, NotChecked=0, Total=272 [2023-11-29 06:42:10,727 INFO L87 Difference]: Start difference. First operand 2963 states and 4823 transitions. Second operand has 14 states, 13 states have (on average 8.076923076923077) internal successors, (105), 14 states have internal predecessors, (105), 5 states have call successors, (13), 1 states have call predecessors, (13), 3 states have return successors, (13), 5 states have call predecessors, (13), 5 states have call successors, (13) [2023-11-29 06:42:15,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:42:15,336 INFO L93 Difference]: Finished difference Result 2978 states and 4828 transitions. [2023-11-29 06:42:15,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-29 06:42:15,336 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 8.076923076923077) internal successors, (105), 14 states have internal predecessors, (105), 5 states have call successors, (13), 1 states have call predecessors, (13), 3 states have return successors, (13), 5 states have call predecessors, (13), 5 states have call successors, (13) Word has length 158 [2023-11-29 06:42:15,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:42:15,340 INFO L225 Difference]: With dead ends: 2978 [2023-11-29 06:42:15,340 INFO L226 Difference]: Without dead ends: 2976 [2023-11-29 06:42:15,340 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 181 GetRequests, 161 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=78, Invalid=384, Unknown=0, NotChecked=0, Total=462 [2023-11-29 06:42:15,341 INFO L413 NwaCegarLoop]: 79 mSDtfsCounter, 334 mSDsluCounter, 534 mSDsCounter, 0 mSdLazyCounter, 1500 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 347 SdHoareTripleChecker+Valid, 613 SdHoareTripleChecker+Invalid, 1512 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 1500 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2023-11-29 06:42:15,341 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [347 Valid, 613 Invalid, 1512 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 1500 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2023-11-29 06:42:15,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2976 states. [2023-11-29 06:42:15,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2976 to 2963. [2023-11-29 06:42:15,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2963 states, 2679 states have (on average 1.6293393057110863) internal successors, (4365), 2734 states have internal predecessors, (4365), 226 states have call successors, (226), 2 states have call predecessors, (226), 2 states have return successors, (226), 226 states have call predecessors, (226), 226 states have call successors, (226) [2023-11-29 06:42:15,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2963 states to 2963 states and 4817 transitions. [2023-11-29 06:42:15,553 INFO L78 Accepts]: Start accepts. Automaton has 2963 states and 4817 transitions. Word has length 158 [2023-11-29 06:42:15,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:42:15,553 INFO L495 AbstractCegarLoop]: Abstraction has 2963 states and 4817 transitions. [2023-11-29 06:42:15,553 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 8.076923076923077) internal successors, (105), 14 states have internal predecessors, (105), 5 states have call successors, (13), 1 states have call predecessors, (13), 3 states have return successors, (13), 5 states have call predecessors, (13), 5 states have call successors, (13) [2023-11-29 06:42:15,553 INFO L276 IsEmpty]: Start isEmpty. Operand 2963 states and 4817 transitions. [2023-11-29 06:42:15,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2023-11-29 06:42:15,554 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:42:15,554 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:42:15,559 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (65)] Ended with exit code 0 [2023-11-29 06:42:15,755 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63,65 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:42:15,755 INFO L420 AbstractCegarLoop]: === Iteration 65 === Targeting ULTIMATE.startErr41ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 06:42:15,755 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:42:15,755 INFO L85 PathProgramCache]: Analyzing trace with hash -1177926609, now seen corresponding path program 1 times [2023-11-29 06:42:15,755 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:42:15,756 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1900865566] [2023-11-29 06:42:15,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:42:15,756 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:42:15,767 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:42:15,767 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [641751770] [2023-11-29 06:42:15,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:42:15,767 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:42:15,768 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:42:15,768 INFO L229 MonitoredProcess]: Starting monitored process 66 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:42:15,769 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (66)] Waiting until timeout for monitored process [2023-11-29 06:42:15,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:42:15,847 INFO L262 TraceCheckSpWp]: Trace formula consists of 267 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-29 06:42:15,850 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:42:16,211 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 172 trivial. 0 not checked. [2023-11-29 06:42:16,211 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:42:16,380 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 172 trivial. 0 not checked. [2023-11-29 06:42:16,381 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:42:16,381 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1900865566] [2023-11-29 06:42:16,381 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:42:16,381 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [641751770] [2023-11-29 06:42:16,381 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [641751770] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 06:42:16,381 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 06:42:16,381 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2023-11-29 06:42:16,381 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [833876322] [2023-11-29 06:42:16,381 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 06:42:16,382 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 06:42:16,382 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:42:16,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 06:42:16,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2023-11-29 06:42:16,382 INFO L87 Difference]: Start difference. First operand 2963 states and 4817 transitions. Second operand has 12 states, 11 states have (on average 17.09090909090909) internal successors, (188), 12 states have internal predecessors, (188), 10 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 10 states have call predecessors, (28), 10 states have call successors, (28) [2023-11-29 06:42:17,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:42:17,706 INFO L93 Difference]: Finished difference Result 3060 states and 4922 transitions. [2023-11-29 06:42:17,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-29 06:42:17,707 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 17.09090909090909) internal successors, (188), 12 states have internal predecessors, (188), 10 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 10 states have call predecessors, (28), 10 states have call successors, (28) Word has length 161 [2023-11-29 06:42:17,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:42:17,710 INFO L225 Difference]: With dead ends: 3060 [2023-11-29 06:42:17,710 INFO L226 Difference]: Without dead ends: 3059 [2023-11-29 06:42:17,710 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 328 GetRequests, 310 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=130, Invalid=250, Unknown=0, NotChecked=0, Total=380 [2023-11-29 06:42:17,710 INFO L413 NwaCegarLoop]: 81 mSDtfsCounter, 1172 mSDsluCounter, 377 mSDsCounter, 0 mSdLazyCounter, 628 mSolverCounterSat, 94 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1176 SdHoareTripleChecker+Valid, 458 SdHoareTripleChecker+Invalid, 722 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 94 IncrementalHoareTripleChecker+Valid, 628 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-11-29 06:42:17,710 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1176 Valid, 458 Invalid, 722 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [94 Valid, 628 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-11-29 06:42:17,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3059 states. [2023-11-29 06:42:17,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3059 to 3053. [2023-11-29 06:42:17,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3053 states, 2761 states have (on average 1.6120970662803331) internal successors, (4451), 2816 states have internal predecessors, (4451), 234 states have call successors, (234), 2 states have call predecessors, (234), 2 states have return successors, (234), 234 states have call predecessors, (234), 234 states have call successors, (234) [2023-11-29 06:42:17,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3053 states to 3053 states and 4919 transitions. [2023-11-29 06:42:17,920 INFO L78 Accepts]: Start accepts. Automaton has 3053 states and 4919 transitions. Word has length 161 [2023-11-29 06:42:17,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:42:17,920 INFO L495 AbstractCegarLoop]: Abstraction has 3053 states and 4919 transitions. [2023-11-29 06:42:17,921 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 17.09090909090909) internal successors, (188), 12 states have internal predecessors, (188), 10 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 10 states have call predecessors, (28), 10 states have call successors, (28) [2023-11-29 06:42:17,921 INFO L276 IsEmpty]: Start isEmpty. Operand 3053 states and 4919 transitions. [2023-11-29 06:42:17,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2023-11-29 06:42:17,921 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:42:17,921 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:42:17,926 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (66)] Ended with exit code 0 [2023-11-29 06:42:18,122 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64,66 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:42:18,122 INFO L420 AbstractCegarLoop]: === Iteration 66 === Targeting ULTIMATE.startErr49ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 06:42:18,122 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:42:18,122 INFO L85 PathProgramCache]: Analyzing trace with hash -1978679969, now seen corresponding path program 1 times [2023-11-29 06:42:18,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:42:18,122 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [680238879] [2023-11-29 06:42:18,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:42:18,122 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:42:18,130 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:42:18,130 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1952080912] [2023-11-29 06:42:18,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:42:18,130 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:42:18,131 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:42:18,131 INFO L229 MonitoredProcess]: Starting monitored process 67 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:42:18,132 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (67)] Waiting until timeout for monitored process [2023-11-29 06:42:18,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:42:18,192 INFO L262 TraceCheckSpWp]: Trace formula consists of 285 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 06:42:18,193 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:42:18,419 INFO L134 CoverageAnalysis]: Checked inductivity of 214 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 172 trivial. 0 not checked. [2023-11-29 06:42:18,419 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:42:18,541 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:42:18,541 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [680238879] [2023-11-29 06:42:18,541 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:42:18,541 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1952080912] [2023-11-29 06:42:18,541 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1952080912] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:42:18,541 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:42:18,541 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2023-11-29 06:42:18,541 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2046879877] [2023-11-29 06:42:18,542 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:42:18,542 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 06:42:18,542 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:42:18,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 06:42:18,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2023-11-29 06:42:18,542 INFO L87 Difference]: Start difference. First operand 3053 states and 4919 transitions. Second operand has 5 states, 4 states have (on average 25.5) internal successors, (102), 5 states have internal predecessors, (102), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) [2023-11-29 06:42:18,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:42:18,901 INFO L93 Difference]: Finished difference Result 3058 states and 4919 transitions. [2023-11-29 06:42:18,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 06:42:18,901 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 25.5) internal successors, (102), 5 states have internal predecessors, (102), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) Word has length 166 [2023-11-29 06:42:18,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:42:18,904 INFO L225 Difference]: With dead ends: 3058 [2023-11-29 06:42:18,904 INFO L226 Difference]: Without dead ends: 3057 [2023-11-29 06:42:18,904 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 236 GetRequests, 231 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2023-11-29 06:42:18,905 INFO L413 NwaCegarLoop]: 126 mSDtfsCounter, 84 mSDsluCounter, 140 mSDsCounter, 0 mSdLazyCounter, 162 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 266 SdHoareTripleChecker+Invalid, 163 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 162 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 06:42:18,905 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 266 Invalid, 163 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 162 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 06:42:18,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3057 states. [2023-11-29 06:42:19,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3057 to 3053. [2023-11-29 06:42:19,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3053 states, 2761 states have (on average 1.6117348786671495) internal successors, (4450), 2816 states have internal predecessors, (4450), 234 states have call successors, (234), 2 states have call predecessors, (234), 2 states have return successors, (234), 234 states have call predecessors, (234), 234 states have call successors, (234) [2023-11-29 06:42:19,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3053 states to 3053 states and 4918 transitions. [2023-11-29 06:42:19,143 INFO L78 Accepts]: Start accepts. Automaton has 3053 states and 4918 transitions. Word has length 166 [2023-11-29 06:42:19,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:42:19,144 INFO L495 AbstractCegarLoop]: Abstraction has 3053 states and 4918 transitions. [2023-11-29 06:42:19,144 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 25.5) internal successors, (102), 5 states have internal predecessors, (102), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) [2023-11-29 06:42:19,144 INFO L276 IsEmpty]: Start isEmpty. Operand 3053 states and 4918 transitions. [2023-11-29 06:42:19,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2023-11-29 06:42:19,144 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:42:19,145 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:42:19,150 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (67)] Ended with exit code 0 [2023-11-29 06:42:19,345 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 67 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable65 [2023-11-29 06:42:19,345 INFO L420 AbstractCegarLoop]: === Iteration 67 === Targeting ULTIMATE.startErr41ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 06:42:19,345 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:42:19,345 INFO L85 PathProgramCache]: Analyzing trace with hash -1774756706, now seen corresponding path program 1 times [2023-11-29 06:42:19,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:42:19,345 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [509893472] [2023-11-29 06:42:19,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:42:19,346 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:42:19,355 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:42:19,355 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1962242658] [2023-11-29 06:42:19,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:42:19,355 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:42:19,355 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:42:19,356 INFO L229 MonitoredProcess]: Starting monitored process 68 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:42:19,357 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (68)] Waiting until timeout for monitored process [2023-11-29 06:42:19,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:42:19,430 INFO L262 TraceCheckSpWp]: Trace formula consists of 289 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-29 06:42:19,432 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:42:19,760 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 172 trivial. 0 not checked. [2023-11-29 06:42:19,760 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:42:19,982 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 172 trivial. 0 not checked. [2023-11-29 06:42:19,982 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:42:19,982 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [509893472] [2023-11-29 06:42:19,982 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:42:19,982 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1962242658] [2023-11-29 06:42:19,982 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1962242658] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 06:42:19,982 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 06:42:19,983 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2023-11-29 06:42:19,983 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [467294608] [2023-11-29 06:42:19,983 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 06:42:19,983 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-29 06:42:19,983 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:42:19,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-29 06:42:19,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2023-11-29 06:42:19,984 INFO L87 Difference]: Start difference. First operand 3053 states and 4918 transitions. Second operand has 14 states, 13 states have (on average 15.538461538461538) internal successors, (202), 14 states have internal predecessors, (202), 10 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 10 states have call predecessors, (28), 10 states have call successors, (28) [2023-11-29 06:42:25,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:42:25,050 INFO L93 Difference]: Finished difference Result 4020 states and 6044 transitions. [2023-11-29 06:42:25,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2023-11-29 06:42:25,050 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 15.538461538461538) internal successors, (202), 14 states have internal predecessors, (202), 10 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 10 states have call predecessors, (28), 10 states have call successors, (28) Word has length 168 [2023-11-29 06:42:25,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:42:25,054 INFO L225 Difference]: With dead ends: 4020 [2023-11-29 06:42:25,054 INFO L226 Difference]: Without dead ends: 4019 [2023-11-29 06:42:25,055 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 361 GetRequests, 322 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 407 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=537, Invalid=1103, Unknown=0, NotChecked=0, Total=1640 [2023-11-29 06:42:25,055 INFO L413 NwaCegarLoop]: 90 mSDtfsCounter, 3050 mSDsluCounter, 545 mSDsCounter, 0 mSdLazyCounter, 1315 mSolverCounterSat, 185 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3050 SdHoareTripleChecker+Valid, 635 SdHoareTripleChecker+Invalid, 1500 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 185 IncrementalHoareTripleChecker+Valid, 1315 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2023-11-29 06:42:25,055 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3050 Valid, 635 Invalid, 1500 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [185 Valid, 1315 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2023-11-29 06:42:25,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4019 states. [2023-11-29 06:42:25,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4019 to 3472. [2023-11-29 06:42:25,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3472 states, 3146 states have (on average 1.6166560712015257) internal successors, (5086), 3201 states have internal predecessors, (5086), 268 states have call successors, (268), 2 states have call predecessors, (268), 2 states have return successors, (268), 268 states have call predecessors, (268), 268 states have call successors, (268) [2023-11-29 06:42:25,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3472 states to 3472 states and 5622 transitions. [2023-11-29 06:42:25,350 INFO L78 Accepts]: Start accepts. Automaton has 3472 states and 5622 transitions. Word has length 168 [2023-11-29 06:42:25,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:42:25,351 INFO L495 AbstractCegarLoop]: Abstraction has 3472 states and 5622 transitions. [2023-11-29 06:42:25,351 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 15.538461538461538) internal successors, (202), 14 states have internal predecessors, (202), 10 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 10 states have call predecessors, (28), 10 states have call successors, (28) [2023-11-29 06:42:25,351 INFO L276 IsEmpty]: Start isEmpty. Operand 3472 states and 5622 transitions. [2023-11-29 06:42:25,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2023-11-29 06:42:25,352 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:42:25,352 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 6, 6, 6, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:42:25,356 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (68)] Ended with exit code 0 [2023-11-29 06:42:25,552 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 68 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable66 [2023-11-29 06:42:25,552 INFO L420 AbstractCegarLoop]: === Iteration 68 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 06:42:25,553 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:42:25,553 INFO L85 PathProgramCache]: Analyzing trace with hash 744703354, now seen corresponding path program 2 times [2023-11-29 06:42:25,553 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:42:25,553 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [115792646] [2023-11-29 06:42:25,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:42:25,553 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:42:25,562 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:42:25,562 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [916889490] [2023-11-29 06:42:25,562 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 06:42:25,562 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:42:25,562 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:42:25,563 INFO L229 MonitoredProcess]: Starting monitored process 69 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:42:25,564 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (69)] Waiting until timeout for monitored process [2023-11-29 06:42:25,635 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 06:42:25,635 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 06:42:25,637 INFO L262 TraceCheckSpWp]: Trace formula consists of 278 conjuncts, 27 conjunts are in the unsatisfiable core [2023-11-29 06:42:25,639 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:42:26,718 INFO L134 CoverageAnalysis]: Checked inductivity of 228 backedges. 18 proven. 74 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2023-11-29 06:42:26,718 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:42:27,979 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:42:27,979 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [115792646] [2023-11-29 06:42:27,979 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:42:27,979 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [916889490] [2023-11-29 06:42:27,979 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [916889490] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:42:27,979 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:42:27,979 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2023-11-29 06:42:27,980 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [813495753] [2023-11-29 06:42:27,980 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:42:27,980 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-29 06:42:27,980 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:42:27,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-29 06:42:27,981 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=225, Unknown=0, NotChecked=0, Total=272 [2023-11-29 06:42:27,981 INFO L87 Difference]: Start difference. First operand 3472 states and 5622 transitions. Second operand has 14 states, 13 states have (on average 8.461538461538462) internal successors, (110), 14 states have internal predecessors, (110), 6 states have call successors, (14), 1 states have call predecessors, (14), 3 states have return successors, (14), 5 states have call predecessors, (14), 6 states have call successors, (14) [2023-11-29 06:42:34,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:42:34,621 INFO L93 Difference]: Finished difference Result 3479 states and 5625 transitions. [2023-11-29 06:42:34,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-29 06:42:34,622 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 8.461538461538462) internal successors, (110), 14 states have internal predecessors, (110), 6 states have call successors, (14), 1 states have call predecessors, (14), 3 states have return successors, (14), 5 states have call predecessors, (14), 6 states have call successors, (14) Word has length 168 [2023-11-29 06:42:34,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:42:34,625 INFO L225 Difference]: With dead ends: 3479 [2023-11-29 06:42:34,625 INFO L226 Difference]: Without dead ends: 3478 [2023-11-29 06:42:34,625 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 210 GetRequests, 187 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 6.4s TimeCoverageRelationStatistics Valid=89, Invalid=462, Unknown=1, NotChecked=0, Total=552 [2023-11-29 06:42:34,626 INFO L413 NwaCegarLoop]: 88 mSDtfsCounter, 364 mSDsluCounter, 660 mSDsCounter, 0 mSdLazyCounter, 1941 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 373 SdHoareTripleChecker+Valid, 748 SdHoareTripleChecker+Invalid, 1961 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 1941 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-11-29 06:42:34,626 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [373 Valid, 748 Invalid, 1961 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 1941 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-11-29 06:42:34,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3478 states. [2023-11-29 06:42:34,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3478 to 3472. [2023-11-29 06:42:34,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3472 states, 3146 states have (on average 1.6163382072472983) internal successors, (5085), 3201 states have internal predecessors, (5085), 268 states have call successors, (268), 2 states have call predecessors, (268), 2 states have return successors, (268), 268 states have call predecessors, (268), 268 states have call successors, (268) [2023-11-29 06:42:34,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3472 states to 3472 states and 5621 transitions. [2023-11-29 06:42:34,906 INFO L78 Accepts]: Start accepts. Automaton has 3472 states and 5621 transitions. Word has length 168 [2023-11-29 06:42:34,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:42:34,906 INFO L495 AbstractCegarLoop]: Abstraction has 3472 states and 5621 transitions. [2023-11-29 06:42:34,906 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 8.461538461538462) internal successors, (110), 14 states have internal predecessors, (110), 6 states have call successors, (14), 1 states have call predecessors, (14), 3 states have return successors, (14), 5 states have call predecessors, (14), 6 states have call successors, (14) [2023-11-29 06:42:34,906 INFO L276 IsEmpty]: Start isEmpty. Operand 3472 states and 5621 transitions. [2023-11-29 06:42:34,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2023-11-29 06:42:34,907 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:42:34,907 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:42:34,911 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (69)] Ended with exit code 0 [2023-11-29 06:42:35,107 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 69 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable67 [2023-11-29 06:42:35,108 INFO L420 AbstractCegarLoop]: === Iteration 69 === Targeting ULTIMATE.startErr46ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 06:42:35,108 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:42:35,108 INFO L85 PathProgramCache]: Analyzing trace with hash -440712098, now seen corresponding path program 1 times [2023-11-29 06:42:35,108 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:42:35,108 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1229931923] [2023-11-29 06:42:35,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:42:35,108 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:42:35,118 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:42:35,118 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [345250844] [2023-11-29 06:42:35,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:42:35,118 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:42:35,118 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:42:35,119 INFO L229 MonitoredProcess]: Starting monitored process 70 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:42:35,120 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (70)] Waiting until timeout for monitored process [2023-11-29 06:42:35,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:42:35,189 INFO L262 TraceCheckSpWp]: Trace formula consists of 298 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 06:42:35,190 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:42:35,264 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 172 trivial. 0 not checked. [2023-11-29 06:42:35,264 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:42:35,264 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:42:35,264 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1229931923] [2023-11-29 06:42:35,264 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:42:35,265 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [345250844] [2023-11-29 06:42:35,265 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [345250844] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:42:35,265 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:42:35,265 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 06:42:35,265 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1722058505] [2023-11-29 06:42:35,265 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:42:35,265 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 06:42:35,265 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:42:35,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 06:42:35,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-29 06:42:35,266 INFO L87 Difference]: Start difference. First operand 3472 states and 5621 transitions. Second operand has 5 states, 5 states have (on average 21.2) internal successors, (106), 5 states have internal predecessors, (106), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-11-29 06:42:35,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:42:35,559 INFO L93 Difference]: Finished difference Result 4085 states and 6562 transitions. [2023-11-29 06:42:35,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 06:42:35,559 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 5 states have internal predecessors, (106), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 170 [2023-11-29 06:42:35,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:42:35,561 INFO L225 Difference]: With dead ends: 4085 [2023-11-29 06:42:35,561 INFO L226 Difference]: Without dead ends: 1223 [2023-11-29 06:42:35,565 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 167 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-11-29 06:42:35,566 INFO L413 NwaCegarLoop]: 179 mSDtfsCounter, 210 mSDsluCounter, 371 mSDsCounter, 0 mSdLazyCounter, 160 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 215 SdHoareTripleChecker+Valid, 550 SdHoareTripleChecker+Invalid, 166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 06:42:35,566 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [215 Valid, 550 Invalid, 166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 160 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 06:42:35,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1223 states. [2023-11-29 06:42:35,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1223 to 1193. [2023-11-29 06:42:35,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1193 states, 1039 states have (on average 1.465832531280077) internal successors, (1523), 1094 states have internal predecessors, (1523), 96 states have call successors, (96), 2 states have call predecessors, (96), 2 states have return successors, (96), 96 states have call predecessors, (96), 96 states have call successors, (96) [2023-11-29 06:42:35,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1193 states to 1193 states and 1715 transitions. [2023-11-29 06:42:35,677 INFO L78 Accepts]: Start accepts. Automaton has 1193 states and 1715 transitions. Word has length 170 [2023-11-29 06:42:35,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:42:35,677 INFO L495 AbstractCegarLoop]: Abstraction has 1193 states and 1715 transitions. [2023-11-29 06:42:35,678 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 5 states have internal predecessors, (106), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-11-29 06:42:35,678 INFO L276 IsEmpty]: Start isEmpty. Operand 1193 states and 1715 transitions. [2023-11-29 06:42:35,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-11-29 06:42:35,678 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:42:35,679 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 6, 6, 6, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:42:35,683 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (70)] Ended with exit code 0 [2023-11-29 06:42:35,879 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 70 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable68 [2023-11-29 06:42:35,879 INFO L420 AbstractCegarLoop]: === Iteration 70 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 06:42:35,879 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:42:35,879 INFO L85 PathProgramCache]: Analyzing trace with hash -1138355774, now seen corresponding path program 1 times [2023-11-29 06:42:35,879 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:42:35,879 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1569948766] [2023-11-29 06:42:35,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:42:35,880 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:42:35,892 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:42:35,892 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [763210961] [2023-11-29 06:42:35,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:42:35,893 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:42:35,893 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:42:35,893 INFO L229 MonitoredProcess]: Starting monitored process 71 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:42:35,894 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (71)] Waiting until timeout for monitored process [2023-11-29 06:42:35,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:42:35,969 INFO L262 TraceCheckSpWp]: Trace formula consists of 297 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-29 06:42:35,972 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:42:36,243 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 2 proven. 61 refuted. 0 times theorem prover too weak. 157 trivial. 0 not checked. [2023-11-29 06:42:36,243 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:42:36,302 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:42:36,302 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1569948766] [2023-11-29 06:42:36,302 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:42:36,303 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [763210961] [2023-11-29 06:42:36,303 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [763210961] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:42:36,303 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:42:36,303 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2023-11-29 06:42:36,303 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1714238389] [2023-11-29 06:42:36,303 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:42:36,303 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 06:42:36,303 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:42:36,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 06:42:36,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2023-11-29 06:42:36,304 INFO L87 Difference]: Start difference. First operand 1193 states and 1715 transitions. Second operand has 10 states, 9 states have (on average 12.333333333333334) internal successors, (111), 10 states have internal predecessors, (111), 5 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 4 states have call predecessors, (14), 5 states have call successors, (14) [2023-11-29 06:42:37,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:42:37,391 INFO L93 Difference]: Finished difference Result 1341 states and 1825 transitions. [2023-11-29 06:42:37,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-29 06:42:37,391 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 12.333333333333334) internal successors, (111), 10 states have internal predecessors, (111), 5 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 4 states have call predecessors, (14), 5 states have call successors, (14) Word has length 172 [2023-11-29 06:42:37,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:42:37,392 INFO L225 Difference]: With dead ends: 1341 [2023-11-29 06:42:37,392 INFO L226 Difference]: Without dead ends: 1339 [2023-11-29 06:42:37,393 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 189 GetRequests, 169 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=121, Invalid=341, Unknown=0, NotChecked=0, Total=462 [2023-11-29 06:42:37,393 INFO L413 NwaCegarLoop]: 152 mSDtfsCounter, 572 mSDsluCounter, 737 mSDsCounter, 0 mSdLazyCounter, 914 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 576 SdHoareTripleChecker+Valid, 889 SdHoareTripleChecker+Invalid, 948 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 914 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-29 06:42:37,393 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [576 Valid, 889 Invalid, 948 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 914 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-29 06:42:37,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1339 states. [2023-11-29 06:42:37,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1339 to 1193. [2023-11-29 06:42:37,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1193 states, 1039 states have (on average 1.4629451395572666) internal successors, (1520), 1094 states have internal predecessors, (1520), 96 states have call successors, (96), 2 states have call predecessors, (96), 2 states have return successors, (96), 96 states have call predecessors, (96), 96 states have call successors, (96) [2023-11-29 06:42:37,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1193 states to 1193 states and 1712 transitions. [2023-11-29 06:42:37,528 INFO L78 Accepts]: Start accepts. Automaton has 1193 states and 1712 transitions. Word has length 172 [2023-11-29 06:42:37,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:42:37,528 INFO L495 AbstractCegarLoop]: Abstraction has 1193 states and 1712 transitions. [2023-11-29 06:42:37,528 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 12.333333333333334) internal successors, (111), 10 states have internal predecessors, (111), 5 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 4 states have call predecessors, (14), 5 states have call successors, (14) [2023-11-29 06:42:37,528 INFO L276 IsEmpty]: Start isEmpty. Operand 1193 states and 1712 transitions. [2023-11-29 06:42:37,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-11-29 06:42:37,529 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:42:37,529 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:42:37,533 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (71)] Forceful destruction successful, exit code 0 [2023-11-29 06:42:37,729 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 71 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable69 [2023-11-29 06:42:37,730 INFO L420 AbstractCegarLoop]: === Iteration 71 === Targeting ULTIMATE.startErr53ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 06:42:37,730 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:42:37,730 INFO L85 PathProgramCache]: Analyzing trace with hash 1472200934, now seen corresponding path program 1 times [2023-11-29 06:42:37,730 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:42:37,730 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [168799265] [2023-11-29 06:42:37,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:42:37,730 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:42:37,738 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:42:37,738 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1745043880] [2023-11-29 06:42:37,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:42:37,738 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:42:37,738 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:42:37,739 INFO L229 MonitoredProcess]: Starting monitored process 72 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:42:37,740 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (72)] Waiting until timeout for monitored process [2023-11-29 06:42:37,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:42:37,803 INFO L262 TraceCheckSpWp]: Trace formula consists of 294 conjuncts, 21 conjunts are in the unsatisfiable core [2023-11-29 06:42:37,805 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:42:38,731 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 3 proven. 56 refuted. 0 times theorem prover too weak. 157 trivial. 0 not checked. [2023-11-29 06:42:38,732 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:42:43,152 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:42:43,152 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [168799265] [2023-11-29 06:42:43,152 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:42:43,152 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1745043880] [2023-11-29 06:42:43,152 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1745043880] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:42:43,153 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:42:43,153 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2023-11-29 06:42:43,153 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1592317677] [2023-11-29 06:42:43,153 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:42:43,153 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-29 06:42:43,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:42:43,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-29 06:42:43,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=247, Unknown=1, NotChecked=0, Total=306 [2023-11-29 06:42:43,154 INFO L87 Difference]: Start difference. First operand 1193 states and 1712 transitions. Second operand has 13 states, 12 states have (on average 9.25) internal successors, (111), 12 states have internal predecessors, (111), 5 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 5 states have call predecessors, (14), 5 states have call successors, (14) [2023-11-29 06:42:45,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:42:45,812 INFO L93 Difference]: Finished difference Result 1292 states and 1807 transitions. [2023-11-29 06:42:45,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-29 06:42:45,812 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 9.25) internal successors, (111), 12 states have internal predecessors, (111), 5 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 5 states have call predecessors, (14), 5 states have call successors, (14) Word has length 172 [2023-11-29 06:42:45,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:42:45,814 INFO L225 Difference]: With dead ends: 1292 [2023-11-29 06:42:45,814 INFO L226 Difference]: Without dead ends: 1288 [2023-11-29 06:42:45,814 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 195 GetRequests, 170 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 4.8s TimeCoverageRelationStatistics Valid=137, Invalid=564, Unknown=1, NotChecked=0, Total=702 [2023-11-29 06:42:45,814 INFO L413 NwaCegarLoop]: 92 mSDtfsCounter, 462 mSDsluCounter, 606 mSDsCounter, 0 mSdLazyCounter, 1996 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 467 SdHoareTripleChecker+Valid, 698 SdHoareTripleChecker+Invalid, 2026 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 1996 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2023-11-29 06:42:45,815 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [467 Valid, 698 Invalid, 2026 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 1996 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2023-11-29 06:42:45,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1288 states. [2023-11-29 06:42:45,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1288 to 1241. [2023-11-29 06:42:45,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1241 states, 1083 states have (on average 1.4579870729455218) internal successors, (1579), 1138 states have internal predecessors, (1579), 100 states have call successors, (100), 2 states have call predecessors, (100), 2 states have return successors, (100), 100 states have call predecessors, (100), 100 states have call successors, (100) [2023-11-29 06:42:45,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1241 states to 1241 states and 1779 transitions. [2023-11-29 06:42:45,942 INFO L78 Accepts]: Start accepts. Automaton has 1241 states and 1779 transitions. Word has length 172 [2023-11-29 06:42:45,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:42:45,942 INFO L495 AbstractCegarLoop]: Abstraction has 1241 states and 1779 transitions. [2023-11-29 06:42:45,942 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 9.25) internal successors, (111), 12 states have internal predecessors, (111), 5 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 5 states have call predecessors, (14), 5 states have call successors, (14) [2023-11-29 06:42:45,942 INFO L276 IsEmpty]: Start isEmpty. Operand 1241 states and 1779 transitions. [2023-11-29 06:42:45,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2023-11-29 06:42:45,943 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:42:45,943 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:42:45,947 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (72)] Ended with exit code 0 [2023-11-29 06:42:46,143 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70,72 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:42:46,144 INFO L420 AbstractCegarLoop]: === Iteration 72 === Targeting ULTIMATE.startErr54ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 06:42:46,144 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:42:46,144 INFO L85 PathProgramCache]: Analyzing trace with hash -1606411113, now seen corresponding path program 1 times [2023-11-29 06:42:46,144 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:42:46,144 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1109285475] [2023-11-29 06:42:46,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:42:46,144 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:42:46,153 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:42:46,153 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1870574869] [2023-11-29 06:42:46,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:42:46,153 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:42:46,153 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:42:46,154 INFO L229 MonitoredProcess]: Starting monitored process 73 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:42:46,155 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (73)] Waiting until timeout for monitored process [2023-11-29 06:42:46,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:42:46,226 INFO L262 TraceCheckSpWp]: Trace formula consists of 295 conjuncts, 19 conjunts are in the unsatisfiable core [2023-11-29 06:42:46,228 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:42:47,477 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 3 proven. 56 refuted. 0 times theorem prover too weak. 157 trivial. 0 not checked. [2023-11-29 06:42:47,478 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:42:48,242 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:42:48,242 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1109285475] [2023-11-29 06:42:48,242 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:42:48,242 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1870574869] [2023-11-29 06:42:48,242 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1870574869] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:42:48,242 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:42:48,242 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2023-11-29 06:42:48,242 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [806712384] [2023-11-29 06:42:48,242 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:42:48,243 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-29 06:42:48,243 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:42:48,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-29 06:42:48,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=204, Unknown=1, NotChecked=0, Total=272 [2023-11-29 06:42:48,243 INFO L87 Difference]: Start difference. First operand 1241 states and 1779 transitions. Second operand has 13 states, 12 states have (on average 9.333333333333334) internal successors, (112), 12 states have internal predecessors, (112), 5 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 5 states have call predecessors, (14), 5 states have call successors, (14) [2023-11-29 06:42:49,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:42:49,911 INFO L93 Difference]: Finished difference Result 1310 states and 1829 transitions. [2023-11-29 06:42:49,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-29 06:42:49,912 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 9.333333333333334) internal successors, (112), 12 states have internal predecessors, (112), 5 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 5 states have call predecessors, (14), 5 states have call successors, (14) Word has length 173 [2023-11-29 06:42:49,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:42:49,913 INFO L225 Difference]: With dead ends: 1310 [2023-11-29 06:42:49,913 INFO L226 Difference]: Without dead ends: 1308 [2023-11-29 06:42:49,914 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 191 GetRequests, 173 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=91, Invalid=288, Unknown=1, NotChecked=0, Total=380 [2023-11-29 06:42:49,914 INFO L413 NwaCegarLoop]: 125 mSDtfsCounter, 289 mSDsluCounter, 546 mSDsCounter, 0 mSdLazyCounter, 1234 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 305 SdHoareTripleChecker+Valid, 671 SdHoareTripleChecker+Invalid, 1242 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 1234 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-11-29 06:42:49,914 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [305 Valid, 671 Invalid, 1242 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 1234 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-11-29 06:42:49,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1308 states. [2023-11-29 06:42:50,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1308 to 1242. [2023-11-29 06:42:50,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1242 states, 1084 states have (on average 1.4566420664206643) internal successors, (1579), 1139 states have internal predecessors, (1579), 100 states have call successors, (100), 2 states have call predecessors, (100), 2 states have return successors, (100), 100 states have call predecessors, (100), 100 states have call successors, (100) [2023-11-29 06:42:50,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1242 states to 1242 states and 1779 transitions. [2023-11-29 06:42:50,082 INFO L78 Accepts]: Start accepts. Automaton has 1242 states and 1779 transitions. Word has length 173 [2023-11-29 06:42:50,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:42:50,082 INFO L495 AbstractCegarLoop]: Abstraction has 1242 states and 1779 transitions. [2023-11-29 06:42:50,082 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 9.333333333333334) internal successors, (112), 12 states have internal predecessors, (112), 5 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 5 states have call predecessors, (14), 5 states have call successors, (14) [2023-11-29 06:42:50,082 INFO L276 IsEmpty]: Start isEmpty. Operand 1242 states and 1779 transitions. [2023-11-29 06:42:50,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2023-11-29 06:42:50,083 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:42:50,083 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 6, 6, 6, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:42:50,088 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (73)] Ended with exit code 0 [2023-11-29 06:42:50,284 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71,73 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:42:50,284 INFO L420 AbstractCegarLoop]: === Iteration 73 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 06:42:50,284 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:42:50,284 INFO L85 PathProgramCache]: Analyzing trace with hash 1739200906, now seen corresponding path program 1 times [2023-11-29 06:42:50,284 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:42:50,284 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [438400719] [2023-11-29 06:42:50,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:42:50,285 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:42:50,293 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:42:50,294 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [191464489] [2023-11-29 06:42:50,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:42:50,294 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:42:50,294 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:42:50,295 INFO L229 MonitoredProcess]: Starting monitored process 74 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:42:50,295 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (74)] Waiting until timeout for monitored process [2023-11-29 06:42:50,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:42:50,356 INFO L262 TraceCheckSpWp]: Trace formula consists of 299 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-29 06:42:50,359 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:42:50,435 INFO L134 CoverageAnalysis]: Checked inductivity of 224 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 172 trivial. 0 not checked. [2023-11-29 06:42:50,435 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:42:50,435 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:42:50,435 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [438400719] [2023-11-29 06:42:50,435 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:42:50,435 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [191464489] [2023-11-29 06:42:50,436 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [191464489] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:42:50,436 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:42:50,436 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-29 06:42:50,436 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1684473081] [2023-11-29 06:42:50,436 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:42:50,436 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 06:42:50,436 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:42:50,436 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 06:42:50,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-11-29 06:42:50,437 INFO L87 Difference]: Start difference. First operand 1242 states and 1779 transitions. Second operand has 8 states, 7 states have (on average 15.714285714285714) internal successors, (110), 8 states have internal predecessors, (110), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-11-29 06:42:51,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:42:51,575 INFO L93 Difference]: Finished difference Result 1273 states and 1785 transitions. [2023-11-29 06:42:51,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-29 06:42:51,575 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 15.714285714285714) internal successors, (110), 8 states have internal predecessors, (110), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 174 [2023-11-29 06:42:51,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:42:51,576 INFO L225 Difference]: With dead ends: 1273 [2023-11-29 06:42:51,577 INFO L226 Difference]: Without dead ends: 1272 [2023-11-29 06:42:51,577 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 183 GetRequests, 170 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2023-11-29 06:42:51,577 INFO L413 NwaCegarLoop]: 231 mSDtfsCounter, 428 mSDsluCounter, 774 mSDsCounter, 0 mSdLazyCounter, 250 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 430 SdHoareTripleChecker+Valid, 1005 SdHoareTripleChecker+Invalid, 272 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 250 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-11-29 06:42:51,577 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [430 Valid, 1005 Invalid, 272 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 250 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-11-29 06:42:51,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1272 states. [2023-11-29 06:42:51,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1272 to 1241. [2023-11-29 06:42:51,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1241 states, 1084 states have (on average 1.4492619926199262) internal successors, (1571), 1138 states have internal predecessors, (1571), 100 states have call successors, (100), 2 states have call predecessors, (100), 2 states have return successors, (100), 100 states have call predecessors, (100), 100 states have call successors, (100) [2023-11-29 06:42:51,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1241 states to 1241 states and 1771 transitions. [2023-11-29 06:42:51,726 INFO L78 Accepts]: Start accepts. Automaton has 1241 states and 1771 transitions. Word has length 174 [2023-11-29 06:42:51,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:42:51,726 INFO L495 AbstractCegarLoop]: Abstraction has 1241 states and 1771 transitions. [2023-11-29 06:42:51,726 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 15.714285714285714) internal successors, (110), 8 states have internal predecessors, (110), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-11-29 06:42:51,727 INFO L276 IsEmpty]: Start isEmpty. Operand 1241 states and 1771 transitions. [2023-11-29 06:42:51,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2023-11-29 06:42:51,728 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:42:51,728 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:42:51,732 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (74)] Ended with exit code 0 [2023-11-29 06:42:51,928 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72,74 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:42:51,928 INFO L420 AbstractCegarLoop]: === Iteration 74 === Targeting ULTIMATE.startErr55ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 06:42:51,928 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:42:51,929 INFO L85 PathProgramCache]: Analyzing trace with hash 1740863240, now seen corresponding path program 1 times [2023-11-29 06:42:51,929 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:42:51,929 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2084478944] [2023-11-29 06:42:51,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:42:51,929 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:42:51,938 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:42:51,939 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1025429950] [2023-11-29 06:42:51,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:42:51,939 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:42:51,939 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:42:51,940 INFO L229 MonitoredProcess]: Starting monitored process 75 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:42:51,941 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (75)] Waiting until timeout for monitored process [2023-11-29 06:42:52,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:42:52,004 INFO L262 TraceCheckSpWp]: Trace formula consists of 296 conjuncts, 16 conjunts are in the unsatisfiable core [2023-11-29 06:42:52,011 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:42:53,395 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 45 proven. 14 refuted. 0 times theorem prover too weak. 157 trivial. 0 not checked. [2023-11-29 06:42:53,395 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:42:53,863 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:42:53,863 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2084478944] [2023-11-29 06:42:53,863 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:42:53,863 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1025429950] [2023-11-29 06:42:53,863 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1025429950] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:42:53,863 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:42:53,863 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2023-11-29 06:42:53,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [68385571] [2023-11-29 06:42:53,863 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:42:53,864 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-29 06:42:53,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:42:53,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-29 06:42:53,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=212, Unknown=0, NotChecked=0, Total=272 [2023-11-29 06:42:53,864 INFO L87 Difference]: Start difference. First operand 1241 states and 1771 transitions. Second operand has 13 states, 12 states have (on average 9.416666666666666) internal successors, (113), 12 states have internal predecessors, (113), 5 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 5 states have call predecessors, (14), 5 states have call successors, (14) [2023-11-29 06:42:56,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:42:56,991 INFO L93 Difference]: Finished difference Result 1304 states and 1805 transitions. [2023-11-29 06:42:56,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-29 06:42:56,991 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 9.416666666666666) internal successors, (113), 12 states have internal predecessors, (113), 5 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 5 states have call predecessors, (14), 5 states have call successors, (14) Word has length 174 [2023-11-29 06:42:56,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:42:56,992 INFO L225 Difference]: With dead ends: 1304 [2023-11-29 06:42:56,993 INFO L226 Difference]: Without dead ends: 1302 [2023-11-29 06:42:56,993 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 193 GetRequests, 175 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=84, Invalid=296, Unknown=0, NotChecked=0, Total=380 [2023-11-29 06:42:56,993 INFO L413 NwaCegarLoop]: 126 mSDtfsCounter, 245 mSDsluCounter, 667 mSDsCounter, 0 mSdLazyCounter, 1581 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 257 SdHoareTripleChecker+Valid, 793 SdHoareTripleChecker+Invalid, 1589 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 1581 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2023-11-29 06:42:56,993 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [257 Valid, 793 Invalid, 1589 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 1581 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2023-11-29 06:42:56,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1302 states. [2023-11-29 06:42:57,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1302 to 1241. [2023-11-29 06:42:57,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1241 states, 1084 states have (on average 1.4464944649446494) internal successors, (1568), 1138 states have internal predecessors, (1568), 100 states have call successors, (100), 2 states have call predecessors, (100), 2 states have return successors, (100), 100 states have call predecessors, (100), 100 states have call successors, (100) [2023-11-29 06:42:57,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1241 states to 1241 states and 1768 transitions. [2023-11-29 06:42:57,171 INFO L78 Accepts]: Start accepts. Automaton has 1241 states and 1768 transitions. Word has length 174 [2023-11-29 06:42:57,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:42:57,171 INFO L495 AbstractCegarLoop]: Abstraction has 1241 states and 1768 transitions. [2023-11-29 06:42:57,171 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 9.416666666666666) internal successors, (113), 12 states have internal predecessors, (113), 5 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 5 states have call predecessors, (14), 5 states have call successors, (14) [2023-11-29 06:42:57,171 INFO L276 IsEmpty]: Start isEmpty. Operand 1241 states and 1768 transitions. [2023-11-29 06:42:57,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2023-11-29 06:42:57,172 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:42:57,173 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 6, 6, 6, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:42:57,177 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (75)] Ended with exit code 0 [2023-11-29 06:42:57,373 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 75 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable73 [2023-11-29 06:42:57,373 INFO L420 AbstractCegarLoop]: === Iteration 75 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 06:42:57,373 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:42:57,373 INFO L85 PathProgramCache]: Analyzing trace with hash 304980523, now seen corresponding path program 1 times [2023-11-29 06:42:57,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:42:57,373 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [909098618] [2023-11-29 06:42:57,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:42:57,374 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:42:57,384 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:42:57,384 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [244855607] [2023-11-29 06:42:57,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:42:57,384 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:42:57,384 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:42:57,385 INFO L229 MonitoredProcess]: Starting monitored process 76 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:42:57,386 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (76)] Waiting until timeout for monitored process [2023-11-29 06:42:57,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:42:57,460 INFO L262 TraceCheckSpWp]: Trace formula consists of 300 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-29 06:42:57,462 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:42:57,662 INFO L134 CoverageAnalysis]: Checked inductivity of 226 backedges. 0 proven. 54 refuted. 0 times theorem prover too weak. 172 trivial. 0 not checked. [2023-11-29 06:42:57,662 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:42:57,712 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:42:57,713 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [909098618] [2023-11-29 06:42:57,713 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:42:57,713 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [244855607] [2023-11-29 06:42:57,713 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [244855607] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:42:57,713 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:42:57,713 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2023-11-29 06:42:57,713 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1895087069] [2023-11-29 06:42:57,713 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:42:57,714 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 06:42:57,714 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:42:57,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 06:42:57,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2023-11-29 06:42:57,714 INFO L87 Difference]: Start difference. First operand 1241 states and 1768 transitions. Second operand has 8 states, 7 states have (on average 15.857142857142858) internal successors, (111), 8 states have internal predecessors, (111), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) [2023-11-29 06:42:59,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:42:59,167 INFO L93 Difference]: Finished difference Result 1393 states and 1928 transitions. [2023-11-29 06:42:59,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-29 06:42:59,167 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 15.857142857142858) internal successors, (111), 8 states have internal predecessors, (111), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) Word has length 175 [2023-11-29 06:42:59,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:42:59,169 INFO L225 Difference]: With dead ends: 1393 [2023-11-29 06:42:59,169 INFO L226 Difference]: Without dead ends: 1390 [2023-11-29 06:42:59,169 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 194 GetRequests, 176 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=108, Invalid=272, Unknown=0, NotChecked=0, Total=380 [2023-11-29 06:42:59,169 INFO L413 NwaCegarLoop]: 148 mSDtfsCounter, 640 mSDsluCounter, 469 mSDsCounter, 0 mSdLazyCounter, 663 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 640 SdHoareTripleChecker+Valid, 617 SdHoareTripleChecker+Invalid, 703 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 663 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-11-29 06:42:59,169 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [640 Valid, 617 Invalid, 703 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 663 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-11-29 06:42:59,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1390 states. [2023-11-29 06:42:59,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1390 to 1259. [2023-11-29 06:42:59,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1259 states, 1102 states have (on average 1.4364791288566243) internal successors, (1583), 1156 states have internal predecessors, (1583), 100 states have call successors, (100), 2 states have call predecessors, (100), 2 states have return successors, (100), 100 states have call predecessors, (100), 100 states have call successors, (100) [2023-11-29 06:42:59,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1259 states to 1259 states and 1783 transitions. [2023-11-29 06:42:59,294 INFO L78 Accepts]: Start accepts. Automaton has 1259 states and 1783 transitions. Word has length 175 [2023-11-29 06:42:59,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:42:59,294 INFO L495 AbstractCegarLoop]: Abstraction has 1259 states and 1783 transitions. [2023-11-29 06:42:59,294 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 15.857142857142858) internal successors, (111), 8 states have internal predecessors, (111), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) [2023-11-29 06:42:59,294 INFO L276 IsEmpty]: Start isEmpty. Operand 1259 states and 1783 transitions. [2023-11-29 06:42:59,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2023-11-29 06:42:59,295 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:42:59,295 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:42:59,299 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (76)] Forceful destruction successful, exit code 0 [2023-11-29 06:42:59,495 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 76 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable74 [2023-11-29 06:42:59,495 INFO L420 AbstractCegarLoop]: === Iteration 76 === Targeting ULTIMATE.startErr57ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 06:42:59,495 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:42:59,495 INFO L85 PathProgramCache]: Analyzing trace with hash -2067665622, now seen corresponding path program 1 times [2023-11-29 06:42:59,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:42:59,496 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1703265098] [2023-11-29 06:42:59,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:42:59,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:42:59,507 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:42:59,507 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1443895972] [2023-11-29 06:42:59,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:42:59,507 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:42:59,508 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:42:59,508 INFO L229 MonitoredProcess]: Starting monitored process 77 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:42:59,509 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (77)] Waiting until timeout for monitored process [2023-11-29 06:42:59,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:42:59,579 INFO L262 TraceCheckSpWp]: Trace formula consists of 298 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-29 06:42:59,582 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:43:00,743 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 42 proven. 2 refuted. 0 times theorem prover too weak. 172 trivial. 0 not checked. [2023-11-29 06:43:00,743 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:43:01,467 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:43:01,467 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1703265098] [2023-11-29 06:43:01,467 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:43:01,467 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1443895972] [2023-11-29 06:43:01,467 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1443895972] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:43:01,467 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:43:01,467 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2023-11-29 06:43:01,468 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [553036735] [2023-11-29 06:43:01,468 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:43:01,468 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-29 06:43:01,468 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:43:01,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-29 06:43:01,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=192, Unknown=0, NotChecked=0, Total=240 [2023-11-29 06:43:01,469 INFO L87 Difference]: Start difference. First operand 1259 states and 1783 transitions. Second operand has 11 states, 10 states have (on average 11.2) internal successors, (112), 11 states have internal predecessors, (112), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) [2023-11-29 06:43:08,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:43:08,150 INFO L93 Difference]: Finished difference Result 1324 states and 1817 transitions. [2023-11-29 06:43:08,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-29 06:43:08,150 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 11.2) internal successors, (112), 11 states have internal predecessors, (112), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) Word has length 176 [2023-11-29 06:43:08,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:43:08,151 INFO L225 Difference]: With dead ends: 1324 [2023-11-29 06:43:08,152 INFO L226 Difference]: Without dead ends: 1320 [2023-11-29 06:43:08,152 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 196 GetRequests, 180 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=65, Invalid=241, Unknown=0, NotChecked=0, Total=306 [2023-11-29 06:43:08,152 INFO L413 NwaCegarLoop]: 137 mSDtfsCounter, 123 mSDsluCounter, 555 mSDsCounter, 0 mSdLazyCounter, 1780 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 692 SdHoareTripleChecker+Invalid, 1786 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 1780 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2023-11-29 06:43:08,152 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [132 Valid, 692 Invalid, 1786 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 1780 Invalid, 0 Unknown, 0 Unchecked, 6.5s Time] [2023-11-29 06:43:08,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1320 states. [2023-11-29 06:43:08,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1320 to 1259. [2023-11-29 06:43:08,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1259 states, 1102 states have (on average 1.428312159709619) internal successors, (1574), 1156 states have internal predecessors, (1574), 100 states have call successors, (100), 2 states have call predecessors, (100), 2 states have return successors, (100), 100 states have call predecessors, (100), 100 states have call successors, (100) [2023-11-29 06:43:08,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1259 states to 1259 states and 1774 transitions. [2023-11-29 06:43:08,286 INFO L78 Accepts]: Start accepts. Automaton has 1259 states and 1774 transitions. Word has length 176 [2023-11-29 06:43:08,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:43:08,286 INFO L495 AbstractCegarLoop]: Abstraction has 1259 states and 1774 transitions. [2023-11-29 06:43:08,286 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 11.2) internal successors, (112), 11 states have internal predecessors, (112), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) [2023-11-29 06:43:08,286 INFO L276 IsEmpty]: Start isEmpty. Operand 1259 states and 1774 transitions. [2023-11-29 06:43:08,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2023-11-29 06:43:08,287 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:43:08,287 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:43:08,292 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (77)] Ended with exit code 0 [2023-11-29 06:43:08,488 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 77 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable75 [2023-11-29 06:43:08,488 INFO L420 AbstractCegarLoop]: === Iteration 77 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 06:43:08,488 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:43:08,488 INFO L85 PathProgramCache]: Analyzing trace with hash -2058136182, now seen corresponding path program 1 times [2023-11-29 06:43:08,488 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:43:08,488 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [210798202] [2023-11-29 06:43:08,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:43:08,489 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:43:08,498 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:43:08,498 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1930076057] [2023-11-29 06:43:08,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:43:08,498 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:43:08,498 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:43:08,499 INFO L229 MonitoredProcess]: Starting monitored process 78 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:43:08,500 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (78)] Waiting until timeout for monitored process [2023-11-29 06:43:08,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:43:08,572 INFO L262 TraceCheckSpWp]: Trace formula consists of 310 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-29 06:43:08,574 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:43:09,267 INFO L134 CoverageAnalysis]: Checked inductivity of 262 backedges. 45 proven. 28 refuted. 0 times theorem prover too weak. 189 trivial. 0 not checked. [2023-11-29 06:43:09,267 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:43:09,372 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:43:09,372 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [210798202] [2023-11-29 06:43:09,372 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:43:09,372 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1930076057] [2023-11-29 06:43:09,372 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1930076057] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:43:09,373 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:43:09,373 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2023-11-29 06:43:09,373 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1208233722] [2023-11-29 06:43:09,373 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:43:09,373 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 06:43:09,373 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:43:09,374 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 06:43:09,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2023-11-29 06:43:09,374 INFO L87 Difference]: Start difference. First operand 1259 states and 1774 transitions. Second operand has 10 states, 9 states have (on average 12.777777777777779) internal successors, (115), 9 states have internal predecessors, (115), 5 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (15), 5 states have call predecessors, (15), 5 states have call successors, (15) [2023-11-29 06:43:10,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:43:10,798 INFO L93 Difference]: Finished difference Result 1305 states and 1792 transitions. [2023-11-29 06:43:10,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-29 06:43:10,799 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 12.777777777777779) internal successors, (115), 9 states have internal predecessors, (115), 5 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (15), 5 states have call predecessors, (15), 5 states have call successors, (15) Word has length 181 [2023-11-29 06:43:10,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:43:10,800 INFO L225 Difference]: With dead ends: 1305 [2023-11-29 06:43:10,800 INFO L226 Difference]: Without dead ends: 1303 [2023-11-29 06:43:10,800 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 208 GetRequests, 193 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=68, Invalid=204, Unknown=0, NotChecked=0, Total=272 [2023-11-29 06:43:10,801 INFO L413 NwaCegarLoop]: 145 mSDtfsCounter, 227 mSDsluCounter, 712 mSDsCounter, 0 mSdLazyCounter, 1189 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 238 SdHoareTripleChecker+Valid, 857 SdHoareTripleChecker+Invalid, 1195 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 1189 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-11-29 06:43:10,801 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [238 Valid, 857 Invalid, 1195 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 1189 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-11-29 06:43:10,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1303 states. [2023-11-29 06:43:10,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1303 to 1259. [2023-11-29 06:43:10,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1259 states, 1102 states have (on average 1.425589836660617) internal successors, (1571), 1156 states have internal predecessors, (1571), 100 states have call successors, (100), 2 states have call predecessors, (100), 2 states have return successors, (100), 100 states have call predecessors, (100), 100 states have call successors, (100) [2023-11-29 06:43:10,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1259 states to 1259 states and 1771 transitions. [2023-11-29 06:43:10,927 INFO L78 Accepts]: Start accepts. Automaton has 1259 states and 1771 transitions. Word has length 181 [2023-11-29 06:43:10,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:43:10,927 INFO L495 AbstractCegarLoop]: Abstraction has 1259 states and 1771 transitions. [2023-11-29 06:43:10,927 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 12.777777777777779) internal successors, (115), 9 states have internal predecessors, (115), 5 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (15), 5 states have call predecessors, (15), 5 states have call successors, (15) [2023-11-29 06:43:10,927 INFO L276 IsEmpty]: Start isEmpty. Operand 1259 states and 1771 transitions. [2023-11-29 06:43:10,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2023-11-29 06:43:10,928 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:43:10,928 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:43:10,932 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (78)] Ended with exit code 0 [2023-11-29 06:43:11,129 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 78 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable76 [2023-11-29 06:43:11,129 INFO L420 AbstractCegarLoop]: === Iteration 78 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 06:43:11,129 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:43:11,129 INFO L85 PathProgramCache]: Analyzing trace with hash 622287882, now seen corresponding path program 1 times [2023-11-29 06:43:11,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:43:11,129 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1558532777] [2023-11-29 06:43:11,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:43:11,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:43:11,137 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:43:11,138 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [26524711] [2023-11-29 06:43:11,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:43:11,138 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:43:11,138 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:43:11,139 INFO L229 MonitoredProcess]: Starting monitored process 79 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:43:11,139 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (79)] Waiting until timeout for monitored process [2023-11-29 06:43:11,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:43:11,215 INFO L262 TraceCheckSpWp]: Trace formula consists of 311 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-29 06:43:11,217 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:43:11,937 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 45 proven. 30 refuted. 0 times theorem prover too weak. 189 trivial. 0 not checked. [2023-11-29 06:43:11,937 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:43:12,125 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:43:12,125 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1558532777] [2023-11-29 06:43:12,125 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:43:12,125 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [26524711] [2023-11-29 06:43:12,125 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [26524711] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:43:12,125 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:43:12,126 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2023-11-29 06:43:12,126 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [428750414] [2023-11-29 06:43:12,126 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:43:12,126 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 06:43:12,126 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:43:12,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 06:43:12,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2023-11-29 06:43:12,126 INFO L87 Difference]: Start difference. First operand 1259 states and 1771 transitions. Second operand has 10 states, 9 states have (on average 12.88888888888889) internal successors, (116), 9 states have internal predecessors, (116), 5 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (15), 5 states have call predecessors, (15), 5 states have call successors, (15) [2023-11-29 06:43:14,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:43:14,215 INFO L93 Difference]: Finished difference Result 1305 states and 1789 transitions. [2023-11-29 06:43:14,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-29 06:43:14,216 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 12.88888888888889) internal successors, (116), 9 states have internal predecessors, (116), 5 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (15), 5 states have call predecessors, (15), 5 states have call successors, (15) Word has length 182 [2023-11-29 06:43:14,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:43:14,217 INFO L225 Difference]: With dead ends: 1305 [2023-11-29 06:43:14,217 INFO L226 Difference]: Without dead ends: 1303 [2023-11-29 06:43:14,217 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 210 GetRequests, 195 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=68, Invalid=204, Unknown=0, NotChecked=0, Total=272 [2023-11-29 06:43:14,218 INFO L413 NwaCegarLoop]: 143 mSDtfsCounter, 260 mSDsluCounter, 634 mSDsCounter, 0 mSdLazyCounter, 1179 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 271 SdHoareTripleChecker+Valid, 777 SdHoareTripleChecker+Invalid, 1187 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 1179 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2023-11-29 06:43:14,218 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [271 Valid, 777 Invalid, 1187 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 1179 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2023-11-29 06:43:14,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1303 states. [2023-11-29 06:43:14,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1303 to 1259. [2023-11-29 06:43:14,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1259 states, 1102 states have (on average 1.4228675136116153) internal successors, (1568), 1156 states have internal predecessors, (1568), 100 states have call successors, (100), 2 states have call predecessors, (100), 2 states have return successors, (100), 100 states have call predecessors, (100), 100 states have call successors, (100) [2023-11-29 06:43:14,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1259 states to 1259 states and 1768 transitions. [2023-11-29 06:43:14,346 INFO L78 Accepts]: Start accepts. Automaton has 1259 states and 1768 transitions. Word has length 182 [2023-11-29 06:43:14,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:43:14,347 INFO L495 AbstractCegarLoop]: Abstraction has 1259 states and 1768 transitions. [2023-11-29 06:43:14,347 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 12.88888888888889) internal successors, (116), 9 states have internal predecessors, (116), 5 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (15), 5 states have call predecessors, (15), 5 states have call successors, (15) [2023-11-29 06:43:14,347 INFO L276 IsEmpty]: Start isEmpty. Operand 1259 states and 1768 transitions. [2023-11-29 06:43:14,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2023-11-29 06:43:14,347 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:43:14,348 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:43:14,352 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (79)] Ended with exit code 0 [2023-11-29 06:43:14,548 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable77,79 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:43:14,548 INFO L420 AbstractCegarLoop]: === Iteration 79 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 06:43:14,548 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:43:14,548 INFO L85 PathProgramCache]: Analyzing trace with hash 1499528590, now seen corresponding path program 1 times [2023-11-29 06:43:14,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:43:14,548 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1874717130] [2023-11-29 06:43:14,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:43:14,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:43:14,561 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:43:14,562 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [702036383] [2023-11-29 06:43:14,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:43:14,562 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:43:14,562 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:43:14,563 INFO L229 MonitoredProcess]: Starting monitored process 80 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:43:14,563 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (80)] Waiting until timeout for monitored process [2023-11-29 06:43:14,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:43:14,630 INFO L262 TraceCheckSpWp]: Trace formula consists of 314 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-29 06:43:14,633 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:43:16,706 INFO L134 CoverageAnalysis]: Checked inductivity of 270 backedges. 60 proven. 30 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2023-11-29 06:43:16,707 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:43:17,326 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:43:17,326 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1874717130] [2023-11-29 06:43:17,326 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:43:17,326 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [702036383] [2023-11-29 06:43:17,327 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [702036383] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:43:17,327 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:43:17,327 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2023-11-29 06:43:17,327 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [823149666] [2023-11-29 06:43:17,327 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:43:17,327 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-29 06:43:17,327 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:43:17,328 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-29 06:43:17,328 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=197, Unknown=0, NotChecked=0, Total=240 [2023-11-29 06:43:17,328 INFO L87 Difference]: Start difference. First operand 1259 states and 1768 transitions. Second operand has 11 states, 10 states have (on average 11.9) internal successors, (119), 11 states have internal predecessors, (119), 5 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (15), 5 states have call predecessors, (15), 5 states have call successors, (15) [2023-11-29 06:43:27,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:43:27,439 INFO L93 Difference]: Finished difference Result 1293 states and 1772 transitions. [2023-11-29 06:43:27,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-29 06:43:27,439 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 11.9) internal successors, (119), 11 states have internal predecessors, (119), 5 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (15), 5 states have call predecessors, (15), 5 states have call successors, (15) Word has length 185 [2023-11-29 06:43:27,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:43:27,441 INFO L225 Difference]: With dead ends: 1293 [2023-11-29 06:43:27,441 INFO L226 Difference]: Without dead ends: 1279 [2023-11-29 06:43:27,443 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 242 GetRequests, 223 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=77, Invalid=343, Unknown=0, NotChecked=0, Total=420 [2023-11-29 06:43:27,443 INFO L413 NwaCegarLoop]: 131 mSDtfsCounter, 114 mSDsluCounter, 604 mSDsCounter, 0 mSdLazyCounter, 1605 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 735 SdHoareTripleChecker+Invalid, 1609 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1605 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.0s IncrementalHoareTripleChecker+Time [2023-11-29 06:43:27,443 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [122 Valid, 735 Invalid, 1609 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1605 Invalid, 0 Unknown, 0 Unchecked, 9.0s Time] [2023-11-29 06:43:27,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1279 states. [2023-11-29 06:43:27,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1279 to 1247. [2023-11-29 06:43:27,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1247 states, 1091 states have (on average 1.4207149404216315) internal successors, (1550), 1145 states have internal predecessors, (1550), 99 states have call successors, (99), 2 states have call predecessors, (99), 2 states have return successors, (99), 99 states have call predecessors, (99), 99 states have call successors, (99) [2023-11-29 06:43:27,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1247 states to 1247 states and 1748 transitions. [2023-11-29 06:43:27,597 INFO L78 Accepts]: Start accepts. Automaton has 1247 states and 1748 transitions. Word has length 185 [2023-11-29 06:43:27,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:43:27,597 INFO L495 AbstractCegarLoop]: Abstraction has 1247 states and 1748 transitions. [2023-11-29 06:43:27,597 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 11.9) internal successors, (119), 11 states have internal predecessors, (119), 5 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (15), 5 states have call predecessors, (15), 5 states have call successors, (15) [2023-11-29 06:43:27,597 INFO L276 IsEmpty]: Start isEmpty. Operand 1247 states and 1748 transitions. [2023-11-29 06:43:27,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2023-11-29 06:43:27,598 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:43:27,598 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:43:27,603 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (80)] Ended with exit code 0 [2023-11-29 06:43:27,799 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 80 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable78 [2023-11-29 06:43:27,799 INFO L420 AbstractCegarLoop]: === Iteration 80 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 06:43:27,799 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:43:27,799 INFO L85 PathProgramCache]: Analyzing trace with hash -1249517856, now seen corresponding path program 1 times [2023-11-29 06:43:27,799 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:43:27,799 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2147167897] [2023-11-29 06:43:27,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:43:27,800 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:43:27,810 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:43:27,810 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1286380409] [2023-11-29 06:43:27,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:43:27,810 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:43:27,810 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:43:27,811 INFO L229 MonitoredProcess]: Starting monitored process 81 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:43:27,812 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (81)] Waiting until timeout for monitored process [2023-11-29 06:43:27,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:43:27,894 INFO L262 TraceCheckSpWp]: Trace formula consists of 340 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-29 06:43:27,896 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:43:31,613 INFO L134 CoverageAnalysis]: Checked inductivity of 366 backedges. 0 proven. 44 refuted. 42 times theorem prover too weak. 280 trivial. 0 not checked. [2023-11-29 06:43:31,613 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:43:44,164 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:43:44,164 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2147167897] [2023-11-29 06:43:44,164 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:43:44,164 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1286380409] [2023-11-29 06:43:44,164 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1286380409] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:43:44,164 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:43:44,164 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2023-11-29 06:43:44,164 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [412881441] [2023-11-29 06:43:44,164 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:43:44,165 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 06:43:44,165 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:43:44,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 06:43:44,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=138, Unknown=4, NotChecked=0, Total=182 [2023-11-29 06:43:44,165 INFO L87 Difference]: Start difference. First operand 1247 states and 1748 transitions. Second operand has 10 states, 9 states have (on average 13.777777777777779) internal successors, (124), 10 states have internal predecessors, (124), 5 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 5 states have call predecessors, (17), 5 states have call successors, (17) [2023-11-29 06:43:48,951 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 06:43:58,626 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.21s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 06:44:06,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:44:06,057 INFO L93 Difference]: Finished difference Result 1289 states and 1766 transitions. [2023-11-29 06:44:06,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-29 06:44:06,057 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 13.777777777777779) internal successors, (124), 10 states have internal predecessors, (124), 5 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 5 states have call predecessors, (17), 5 states have call successors, (17) Word has length 203 [2023-11-29 06:44:06,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:44:06,059 INFO L225 Difference]: With dead ends: 1289 [2023-11-29 06:44:06,059 INFO L226 Difference]: Without dead ends: 1288 [2023-11-29 06:44:06,060 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 255 GetRequests, 236 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 21.9s TimeCoverageRelationStatistics Valid=95, Invalid=320, Unknown=5, NotChecked=0, Total=420 [2023-11-29 06:44:06,060 INFO L413 NwaCegarLoop]: 150 mSDtfsCounter, 199 mSDsluCounter, 679 mSDsCounter, 0 mSdLazyCounter, 1435 mSolverCounterSat, 14 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 200 SdHoareTripleChecker+Valid, 829 SdHoareTripleChecker+Invalid, 1450 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 1435 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.6s IncrementalHoareTripleChecker+Time [2023-11-29 06:44:06,060 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [200 Valid, 829 Invalid, 1450 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 1435 Invalid, 1 Unknown, 0 Unchecked, 14.6s Time] [2023-11-29 06:44:06,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1288 states. [2023-11-29 06:44:06,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1288 to 1247. [2023-11-29 06:44:06,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1247 states, 1091 states have (on average 1.4161319890009165) internal successors, (1545), 1145 states have internal predecessors, (1545), 99 states have call successors, (99), 2 states have call predecessors, (99), 2 states have return successors, (99), 99 states have call predecessors, (99), 99 states have call successors, (99) [2023-11-29 06:44:06,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1247 states to 1247 states and 1743 transitions. [2023-11-29 06:44:06,200 INFO L78 Accepts]: Start accepts. Automaton has 1247 states and 1743 transitions. Word has length 203 [2023-11-29 06:44:06,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:44:06,200 INFO L495 AbstractCegarLoop]: Abstraction has 1247 states and 1743 transitions. [2023-11-29 06:44:06,200 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 13.777777777777779) internal successors, (124), 10 states have internal predecessors, (124), 5 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 5 states have call predecessors, (17), 5 states have call successors, (17) [2023-11-29 06:44:06,200 INFO L276 IsEmpty]: Start isEmpty. Operand 1247 states and 1743 transitions. [2023-11-29 06:44:06,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2023-11-29 06:44:06,201 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:44:06,201 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:44:06,206 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (81)] Ended with exit code 0 [2023-11-29 06:44:06,402 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable79,81 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:44:06,402 INFO L420 AbstractCegarLoop]: === Iteration 81 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 06:44:06,402 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:44:06,402 INFO L85 PathProgramCache]: Analyzing trace with hash 1804186786, now seen corresponding path program 1 times [2023-11-29 06:44:06,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:44:06,402 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [890975188] [2023-11-29 06:44:06,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:44:06,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:44:06,415 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:44:06,415 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [796265599] [2023-11-29 06:44:06,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:44:06,415 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:44:06,415 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:44:06,416 INFO L229 MonitoredProcess]: Starting monitored process 82 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:44:06,417 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (82)] Waiting until timeout for monitored process [2023-11-29 06:44:06,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:44:06,502 INFO L262 TraceCheckSpWp]: Trace formula consists of 342 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-29 06:44:06,504 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:44:07,249 INFO L134 CoverageAnalysis]: Checked inductivity of 370 backedges. 15 proven. 90 refuted. 0 times theorem prover too weak. 265 trivial. 0 not checked. [2023-11-29 06:44:07,249 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:44:12,310 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:44:12,310 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [890975188] [2023-11-29 06:44:12,310 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:44:12,310 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [796265599] [2023-11-29 06:44:12,311 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [796265599] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:44:12,311 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:44:12,311 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2023-11-29 06:44:12,311 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [464476271] [2023-11-29 06:44:12,311 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:44:12,311 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 06:44:12,311 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:44:12,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 06:44:12,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=192, Unknown=1, NotChecked=0, Total=240 [2023-11-29 06:44:12,312 INFO L87 Difference]: Start difference. First operand 1247 states and 1743 transitions. Second operand has 10 states, 9 states have (on average 14.333333333333334) internal successors, (129), 10 states have internal predecessors, (129), 5 states have call successors, (17), 1 states have call predecessors, (17), 2 states have return successors, (17), 6 states have call predecessors, (17), 5 states have call successors, (17) [2023-11-29 06:44:13,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:44:13,568 INFO L93 Difference]: Finished difference Result 1294 states and 1777 transitions. [2023-11-29 06:44:13,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-29 06:44:13,569 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 14.333333333333334) internal successors, (129), 10 states have internal predecessors, (129), 5 states have call successors, (17), 1 states have call predecessors, (17), 2 states have return successors, (17), 6 states have call predecessors, (17), 5 states have call successors, (17) Word has length 205 [2023-11-29 06:44:13,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:44:13,570 INFO L225 Difference]: With dead ends: 1294 [2023-11-29 06:44:13,570 INFO L226 Difference]: Without dead ends: 1293 [2023-11-29 06:44:13,571 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 374 GetRequests, 359 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 4.8s TimeCoverageRelationStatistics Valid=51, Invalid=220, Unknown=1, NotChecked=0, Total=272 [2023-11-29 06:44:13,571 INFO L413 NwaCegarLoop]: 177 mSDtfsCounter, 174 mSDsluCounter, 788 mSDsCounter, 0 mSdLazyCounter, 965 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 179 SdHoareTripleChecker+Valid, 965 SdHoareTripleChecker+Invalid, 969 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 965 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-11-29 06:44:13,571 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [179 Valid, 965 Invalid, 969 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 965 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-11-29 06:44:13,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1293 states. [2023-11-29 06:44:13,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1293 to 1247. [2023-11-29 06:44:13,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1247 states, 1091 states have (on average 1.4133822181484876) internal successors, (1542), 1145 states have internal predecessors, (1542), 99 states have call successors, (99), 2 states have call predecessors, (99), 2 states have return successors, (99), 99 states have call predecessors, (99), 99 states have call successors, (99) [2023-11-29 06:44:13,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1247 states to 1247 states and 1740 transitions. [2023-11-29 06:44:13,714 INFO L78 Accepts]: Start accepts. Automaton has 1247 states and 1740 transitions. Word has length 205 [2023-11-29 06:44:13,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:44:13,714 INFO L495 AbstractCegarLoop]: Abstraction has 1247 states and 1740 transitions. [2023-11-29 06:44:13,714 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 14.333333333333334) internal successors, (129), 10 states have internal predecessors, (129), 5 states have call successors, (17), 1 states have call predecessors, (17), 2 states have return successors, (17), 6 states have call predecessors, (17), 5 states have call successors, (17) [2023-11-29 06:44:13,714 INFO L276 IsEmpty]: Start isEmpty. Operand 1247 states and 1740 transitions. [2023-11-29 06:44:13,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2023-11-29 06:44:13,715 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:44:13,715 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:44:13,719 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (82)] Ended with exit code 0 [2023-11-29 06:44:13,915 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable80,82 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:44:13,915 INFO L420 AbstractCegarLoop]: === Iteration 82 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 06:44:13,916 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:44:13,916 INFO L85 PathProgramCache]: Analyzing trace with hash 95215632, now seen corresponding path program 1 times [2023-11-29 06:44:13,916 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:44:13,916 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1169676557] [2023-11-29 06:44:13,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:44:13,916 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:44:13,925 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:44:13,925 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1106584427] [2023-11-29 06:44:13,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:44:13,925 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:44:13,925 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:44:13,926 INFO L229 MonitoredProcess]: Starting monitored process 83 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:44:13,927 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (83)] Waiting until timeout for monitored process [2023-11-29 06:44:14,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:44:14,008 INFO L262 TraceCheckSpWp]: Trace formula consists of 343 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-29 06:44:14,010 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:44:16,155 INFO L134 CoverageAnalysis]: Checked inductivity of 372 backedges. 42 proven. 50 refuted. 0 times theorem prover too weak. 280 trivial. 0 not checked. [2023-11-29 06:44:16,155 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:44:17,335 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:44:17,335 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1169676557] [2023-11-29 06:44:17,335 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:44:17,335 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1106584427] [2023-11-29 06:44:17,335 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1106584427] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:44:17,335 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:44:17,335 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2023-11-29 06:44:17,336 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1289925215] [2023-11-29 06:44:17,336 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:44:17,336 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-29 06:44:17,336 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:44:17,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-29 06:44:17,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=162, Unknown=0, NotChecked=0, Total=210 [2023-11-29 06:44:17,337 INFO L87 Difference]: Start difference. First operand 1247 states and 1740 transitions. Second operand has 11 states, 10 states have (on average 12.7) internal successors, (127), 11 states have internal predecessors, (127), 5 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 5 states have call predecessors, (17), 5 states have call successors, (17) [2023-11-29 06:44:20,488 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 06:44:22,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:44:22,732 INFO L93 Difference]: Finished difference Result 1300 states and 1774 transitions. [2023-11-29 06:44:22,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-29 06:44:22,733 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 12.7) internal successors, (127), 11 states have internal predecessors, (127), 5 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 5 states have call predecessors, (17), 5 states have call successors, (17) Word has length 206 [2023-11-29 06:44:22,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:44:22,734 INFO L225 Difference]: With dead ends: 1300 [2023-11-29 06:44:22,734 INFO L226 Difference]: Without dead ends: 1299 [2023-11-29 06:44:22,735 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 261 GetRequests, 241 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=121, Invalid=341, Unknown=0, NotChecked=0, Total=462 [2023-11-29 06:44:22,735 INFO L413 NwaCegarLoop]: 171 mSDtfsCounter, 132 mSDsluCounter, 584 mSDsCounter, 0 mSdLazyCounter, 1235 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 133 SdHoareTripleChecker+Valid, 755 SdHoareTripleChecker+Invalid, 1242 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1235 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2023-11-29 06:44:22,735 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [133 Valid, 755 Invalid, 1242 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1235 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2023-11-29 06:44:22,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1299 states. [2023-11-29 06:44:22,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1299 to 1247. [2023-11-29 06:44:22,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1247 states, 1091 states have (on average 1.4087992667277727) internal successors, (1537), 1145 states have internal predecessors, (1537), 99 states have call successors, (99), 2 states have call predecessors, (99), 2 states have return successors, (99), 99 states have call predecessors, (99), 99 states have call successors, (99) [2023-11-29 06:44:22,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1247 states to 1247 states and 1735 transitions. [2023-11-29 06:44:22,943 INFO L78 Accepts]: Start accepts. Automaton has 1247 states and 1735 transitions. Word has length 206 [2023-11-29 06:44:22,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:44:22,943 INFO L495 AbstractCegarLoop]: Abstraction has 1247 states and 1735 transitions. [2023-11-29 06:44:22,943 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 12.7) internal successors, (127), 11 states have internal predecessors, (127), 5 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 5 states have call predecessors, (17), 5 states have call successors, (17) [2023-11-29 06:44:22,943 INFO L276 IsEmpty]: Start isEmpty. Operand 1247 states and 1735 transitions. [2023-11-29 06:44:22,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2023-11-29 06:44:22,945 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:44:22,945 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:44:22,951 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (83)] Ended with exit code 0 [2023-11-29 06:44:23,145 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 83 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable81 [2023-11-29 06:44:23,145 INFO L420 AbstractCegarLoop]: === Iteration 83 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 06:44:23,146 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:44:23,146 INFO L85 PathProgramCache]: Analyzing trace with hash -1343282588, now seen corresponding path program 1 times [2023-11-29 06:44:23,146 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:44:23,146 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [741688699] [2023-11-29 06:44:23,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:44:23,146 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:44:23,158 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:44:23,159 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [282739824] [2023-11-29 06:44:23,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:44:23,159 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:44:23,159 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:44:23,160 INFO L229 MonitoredProcess]: Starting monitored process 84 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:44:23,161 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (84)] Waiting until timeout for monitored process [2023-11-29 06:44:23,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:44:23,246 INFO L262 TraceCheckSpWp]: Trace formula consists of 344 conjuncts, 30 conjunts are in the unsatisfiable core [2023-11-29 06:44:23,250 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:44:26,387 INFO L134 CoverageAnalysis]: Checked inductivity of 374 backedges. 0 proven. 94 refuted. 0 times theorem prover too weak. 280 trivial. 0 not checked. [2023-11-29 06:44:26,388 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:44:28,697 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:44:28,697 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [741688699] [2023-11-29 06:44:28,697 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:44:28,697 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [282739824] [2023-11-29 06:44:28,697 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [282739824] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:44:28,697 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:44:28,697 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2023-11-29 06:44:28,697 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [87969630] [2023-11-29 06:44:28,697 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:44:28,698 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-29 06:44:28,698 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:44:28,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-29 06:44:28,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=396, Unknown=0, NotChecked=0, Total=462 [2023-11-29 06:44:28,698 INFO L87 Difference]: Start difference. First operand 1247 states and 1735 transitions. Second operand has 13 states, 12 states have (on average 10.666666666666666) internal successors, (128), 13 states have internal predecessors, (128), 6 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 6 states have call predecessors, (17), 6 states have call successors, (17) [2023-11-29 06:44:47,926 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 06:44:50,207 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.19s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 06:44:54,166 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.87s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 06:44:57,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:44:57,207 INFO L93 Difference]: Finished difference Result 1280 states and 1753 transitions. [2023-11-29 06:44:57,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-29 06:44:57,208 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 10.666666666666666) internal successors, (128), 13 states have internal predecessors, (128), 6 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 6 states have call predecessors, (17), 6 states have call successors, (17) Word has length 207 [2023-11-29 06:44:57,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:44:57,209 INFO L225 Difference]: With dead ends: 1280 [2023-11-29 06:44:57,209 INFO L226 Difference]: Without dead ends: 1279 [2023-11-29 06:44:57,210 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 351 GetRequests, 323 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 93 ImplicationChecksByTransitivity, 15.3s TimeCoverageRelationStatistics Valid=131, Invalid=736, Unknown=3, NotChecked=0, Total=870 [2023-11-29 06:44:57,210 INFO L413 NwaCegarLoop]: 140 mSDtfsCounter, 240 mSDsluCounter, 474 mSDsCounter, 0 mSdLazyCounter, 2329 mSolverCounterSat, 16 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 245 SdHoareTripleChecker+Valid, 614 SdHoareTripleChecker+Invalid, 2346 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 2329 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.7s IncrementalHoareTripleChecker+Time [2023-11-29 06:44:57,210 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [245 Valid, 614 Invalid, 2346 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 2329 Invalid, 1 Unknown, 0 Unchecked, 14.7s Time] [2023-11-29 06:44:57,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1279 states. [2023-11-29 06:44:57,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1279 to 1247. [2023-11-29 06:44:57,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1247 states, 1091 states have (on average 1.4060494958753438) internal successors, (1534), 1145 states have internal predecessors, (1534), 99 states have call successors, (99), 2 states have call predecessors, (99), 2 states have return successors, (99), 99 states have call predecessors, (99), 99 states have call successors, (99) [2023-11-29 06:44:57,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1247 states to 1247 states and 1732 transitions. [2023-11-29 06:44:57,429 INFO L78 Accepts]: Start accepts. Automaton has 1247 states and 1732 transitions. Word has length 207 [2023-11-29 06:44:57,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:44:57,429 INFO L495 AbstractCegarLoop]: Abstraction has 1247 states and 1732 transitions. [2023-11-29 06:44:57,429 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 10.666666666666666) internal successors, (128), 13 states have internal predecessors, (128), 6 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 6 states have call predecessors, (17), 6 states have call successors, (17) [2023-11-29 06:44:57,429 INFO L276 IsEmpty]: Start isEmpty. Operand 1247 states and 1732 transitions. [2023-11-29 06:44:57,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2023-11-29 06:44:57,430 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:44:57,431 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:44:57,435 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (84)] Ended with exit code 0 [2023-11-29 06:44:57,631 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 84 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable82 [2023-11-29 06:44:57,631 INFO L420 AbstractCegarLoop]: === Iteration 84 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 06:44:57,631 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:44:57,631 INFO L85 PathProgramCache]: Analyzing trace with hash 1307912850, now seen corresponding path program 1 times [2023-11-29 06:44:57,631 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:44:57,631 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1999614589] [2023-11-29 06:44:57,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:44:57,632 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:44:57,640 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:44:57,640 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [15226792] [2023-11-29 06:44:57,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:44:57,640 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:44:57,640 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:44:57,641 INFO L229 MonitoredProcess]: Starting monitored process 85 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:44:57,642 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (85)] Waiting until timeout for monitored process [2023-11-29 06:44:57,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:44:57,724 INFO L262 TraceCheckSpWp]: Trace formula consists of 345 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-29 06:44:57,726 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:45:00,640 INFO L134 CoverageAnalysis]: Checked inductivity of 376 backedges. 42 proven. 54 refuted. 0 times theorem prover too weak. 280 trivial. 0 not checked. [2023-11-29 06:45:00,640 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:45:00,826 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:45:00,827 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1999614589] [2023-11-29 06:45:00,827 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:45:00,827 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [15226792] [2023-11-29 06:45:00,827 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [15226792] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:45:00,827 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:45:00,827 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2023-11-29 06:45:00,827 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1641871661] [2023-11-29 06:45:00,827 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:45:00,827 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 06:45:00,827 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:45:00,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 06:45:00,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2023-11-29 06:45:00,828 INFO L87 Difference]: Start difference. First operand 1247 states and 1732 transitions. Second operand has 12 states, 11 states have (on average 11.727272727272727) internal successors, (129), 12 states have internal predecessors, (129), 5 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 5 states have call predecessors, (17), 5 states have call successors, (17) [2023-11-29 06:45:04,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:45:04,778 INFO L93 Difference]: Finished difference Result 1299 states and 1766 transitions. [2023-11-29 06:45:04,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-29 06:45:04,779 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 11.727272727272727) internal successors, (129), 12 states have internal predecessors, (129), 5 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 5 states have call predecessors, (17), 5 states have call successors, (17) Word has length 208 [2023-11-29 06:45:04,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:45:04,781 INFO L225 Difference]: With dead ends: 1299 [2023-11-29 06:45:04,781 INFO L226 Difference]: Without dead ends: 1298 [2023-11-29 06:45:04,781 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 221 GetRequests, 202 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=98, Invalid=322, Unknown=0, NotChecked=0, Total=420 [2023-11-29 06:45:04,782 INFO L413 NwaCegarLoop]: 175 mSDtfsCounter, 193 mSDsluCounter, 594 mSDsCounter, 0 mSdLazyCounter, 1391 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 197 SdHoareTripleChecker+Valid, 769 SdHoareTripleChecker+Invalid, 1399 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 1391 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2023-11-29 06:45:04,782 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [197 Valid, 769 Invalid, 1399 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 1391 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2023-11-29 06:45:04,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1298 states. [2023-11-29 06:45:04,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1298 to 1247. [2023-11-29 06:45:04,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1247 states, 1091 states have (on average 1.4014665444546288) internal successors, (1529), 1145 states have internal predecessors, (1529), 99 states have call successors, (99), 2 states have call predecessors, (99), 2 states have return successors, (99), 99 states have call predecessors, (99), 99 states have call successors, (99) [2023-11-29 06:45:04,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1247 states to 1247 states and 1727 transitions. [2023-11-29 06:45:04,936 INFO L78 Accepts]: Start accepts. Automaton has 1247 states and 1727 transitions. Word has length 208 [2023-11-29 06:45:04,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:45:04,936 INFO L495 AbstractCegarLoop]: Abstraction has 1247 states and 1727 transitions. [2023-11-29 06:45:04,937 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 11.727272727272727) internal successors, (129), 12 states have internal predecessors, (129), 5 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 5 states have call predecessors, (17), 5 states have call successors, (17) [2023-11-29 06:45:04,937 INFO L276 IsEmpty]: Start isEmpty. Operand 1247 states and 1727 transitions. [2023-11-29 06:45:04,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2023-11-29 06:45:04,938 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:45:04,938 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:45:04,942 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (85)] Ended with exit code 0 [2023-11-29 06:45:05,138 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable83,85 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:45:05,138 INFO L420 AbstractCegarLoop]: === Iteration 85 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 06:45:05,138 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:45:05,138 INFO L85 PathProgramCache]: Analyzing trace with hash 88524264, now seen corresponding path program 1 times [2023-11-29 06:45:05,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:45:05,139 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1062602722] [2023-11-29 06:45:05,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:45:05,139 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:45:05,151 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:45:05,151 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1300765013] [2023-11-29 06:45:05,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:45:05,151 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:45:05,151 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:45:05,152 INFO L229 MonitoredProcess]: Starting monitored process 86 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:45:05,153 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (86)] Waiting until timeout for monitored process [2023-11-29 06:45:05,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:45:05,239 INFO L262 TraceCheckSpWp]: Trace formula consists of 348 conjuncts, 38 conjunts are in the unsatisfiable core [2023-11-29 06:45:05,241 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:45:09,110 INFO L134 CoverageAnalysis]: Checked inductivity of 382 backedges. 45 proven. 102 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2023-11-29 06:45:09,110 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:45:12,371 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:45:12,371 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1062602722] [2023-11-29 06:45:12,371 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:45:12,371 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1300765013] [2023-11-29 06:45:12,371 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1300765013] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:45:12,371 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:45:12,371 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2023-11-29 06:45:12,371 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [553913723] [2023-11-29 06:45:12,372 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:45:12,372 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-11-29 06:45:12,372 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:45:12,372 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-11-29 06:45:12,373 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=569, Unknown=0, NotChecked=0, Total=650 [2023-11-29 06:45:12,373 INFO L87 Difference]: Start difference. First operand 1247 states and 1727 transitions. Second operand has 19 states, 18 states have (on average 7.666666666666667) internal successors, (138), 19 states have internal predecessors, (138), 5 states have call successors, (17), 1 states have call predecessors, (17), 3 states have return successors, (17), 7 states have call predecessors, (17), 5 states have call successors, (17) [2023-11-29 06:45:24,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:45:24,131 INFO L93 Difference]: Finished difference Result 1278 states and 1745 transitions. [2023-11-29 06:45:24,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-11-29 06:45:24,132 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 7.666666666666667) internal successors, (138), 19 states have internal predecessors, (138), 5 states have call successors, (17), 1 states have call predecessors, (17), 3 states have return successors, (17), 7 states have call predecessors, (17), 5 states have call successors, (17) Word has length 211 [2023-11-29 06:45:24,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:45:24,133 INFO L225 Difference]: With dead ends: 1278 [2023-11-29 06:45:24,133 INFO L226 Difference]: Without dead ends: 1273 [2023-11-29 06:45:24,134 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 272 GetRequests, 240 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 210 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=142, Invalid=980, Unknown=0, NotChecked=0, Total=1122 [2023-11-29 06:45:24,134 INFO L413 NwaCegarLoop]: 76 mSDtfsCounter, 349 mSDsluCounter, 637 mSDsCounter, 0 mSdLazyCounter, 3822 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 359 SdHoareTripleChecker+Valid, 713 SdHoareTripleChecker+Invalid, 3838 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 3822 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.8s IncrementalHoareTripleChecker+Time [2023-11-29 06:45:24,134 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [359 Valid, 713 Invalid, 3838 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 3822 Invalid, 0 Unknown, 0 Unchecked, 10.8s Time] [2023-11-29 06:45:24,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1273 states. [2023-11-29 06:45:24,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1273 to 1247. [2023-11-29 06:45:24,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1247 states, 1091 states have (on average 1.38955087076077) internal successors, (1516), 1145 states have internal predecessors, (1516), 99 states have call successors, (99), 2 states have call predecessors, (99), 2 states have return successors, (99), 99 states have call predecessors, (99), 99 states have call successors, (99) [2023-11-29 06:45:24,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1247 states to 1247 states and 1714 transitions. [2023-11-29 06:45:24,287 INFO L78 Accepts]: Start accepts. Automaton has 1247 states and 1714 transitions. Word has length 211 [2023-11-29 06:45:24,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:45:24,288 INFO L495 AbstractCegarLoop]: Abstraction has 1247 states and 1714 transitions. [2023-11-29 06:45:24,288 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 7.666666666666667) internal successors, (138), 19 states have internal predecessors, (138), 5 states have call successors, (17), 1 states have call predecessors, (17), 3 states have return successors, (17), 7 states have call predecessors, (17), 5 states have call successors, (17) [2023-11-29 06:45:24,288 INFO L276 IsEmpty]: Start isEmpty. Operand 1247 states and 1714 transitions. [2023-11-29 06:45:24,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2023-11-29 06:45:24,289 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:45:24,289 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:45:24,295 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (86)] Forceful destruction successful, exit code 0 [2023-11-29 06:45:24,490 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable84,86 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:45:24,490 INFO L420 AbstractCegarLoop]: === Iteration 86 === Targeting ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 06:45:24,490 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:45:24,490 INFO L85 PathProgramCache]: Analyzing trace with hash -1550714986, now seen corresponding path program 1 times [2023-11-29 06:45:24,490 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:45:24,490 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1455958424] [2023-11-29 06:45:24,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:45:24,491 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:45:24,500 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:45:24,500 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1016380552] [2023-11-29 06:45:24,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:45:24,500 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:45:24,500 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:45:24,501 INFO L229 MonitoredProcess]: Starting monitored process 87 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:45:24,502 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (87)] Waiting until timeout for monitored process [2023-11-29 06:45:24,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:45:24,583 INFO L262 TraceCheckSpWp]: Trace formula consists of 349 conjuncts, 24 conjunts are in the unsatisfiable core [2023-11-29 06:45:24,585 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:45:28,503 INFO L134 CoverageAnalysis]: Checked inductivity of 384 backedges. 75 proven. 74 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2023-11-29 06:45:28,503 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:45:38,126 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:45:38,126 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1455958424] [2023-11-29 06:45:38,126 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:45:38,126 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1016380552] [2023-11-29 06:45:38,127 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1016380552] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:45:38,127 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:45:38,127 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2023-11-29 06:45:38,127 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2129828439] [2023-11-29 06:45:38,127 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:45:38,127 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-11-29 06:45:38,127 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:45:38,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-11-29 06:45:38,128 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=394, Unknown=2, NotChecked=0, Total=462 [2023-11-29 06:45:38,128 INFO L87 Difference]: Start difference. First operand 1247 states and 1714 transitions. Second operand has 19 states, 18 states have (on average 7.722222222222222) internal successors, (139), 18 states have internal predecessors, (139), 6 states have call successors, (17), 1 states have call predecessors, (17), 3 states have return successors, (17), 7 states have call predecessors, (17), 6 states have call successors, (17) [2023-11-29 06:45:48,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:45:48,284 INFO L93 Difference]: Finished difference Result 1287 states and 1732 transitions. [2023-11-29 06:45:48,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-11-29 06:45:48,284 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 7.722222222222222) internal successors, (139), 18 states have internal predecessors, (139), 6 states have call successors, (17), 1 states have call predecessors, (17), 3 states have return successors, (17), 7 states have call predecessors, (17), 6 states have call successors, (17) Word has length 212 [2023-11-29 06:45:48,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:45:48,285 INFO L225 Difference]: With dead ends: 1287 [2023-11-29 06:45:48,285 INFO L226 Difference]: Without dead ends: 1284 [2023-11-29 06:45:48,286 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 230 GetRequests, 202 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 163 ImplicationChecksByTransitivity, 12.7s TimeCoverageRelationStatistics Valid=130, Invalid=738, Unknown=2, NotChecked=0, Total=870 [2023-11-29 06:45:48,286 INFO L413 NwaCegarLoop]: 92 mSDtfsCounter, 377 mSDsluCounter, 742 mSDsCounter, 0 mSdLazyCounter, 2752 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 385 SdHoareTripleChecker+Valid, 834 SdHoareTripleChecker+Invalid, 2775 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 2752 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.2s IncrementalHoareTripleChecker+Time [2023-11-29 06:45:48,286 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [385 Valid, 834 Invalid, 2775 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 2752 Invalid, 0 Unknown, 0 Unchecked, 8.2s Time] [2023-11-29 06:45:48,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1284 states. [2023-11-29 06:45:48,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1284 to 1247. [2023-11-29 06:45:48,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1247 states, 1091 states have (on average 1.378551787351054) internal successors, (1504), 1145 states have internal predecessors, (1504), 99 states have call successors, (99), 2 states have call predecessors, (99), 2 states have return successors, (99), 99 states have call predecessors, (99), 99 states have call successors, (99) [2023-11-29 06:45:48,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1247 states to 1247 states and 1702 transitions. [2023-11-29 06:45:48,438 INFO L78 Accepts]: Start accepts. Automaton has 1247 states and 1702 transitions. Word has length 212 [2023-11-29 06:45:48,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:45:48,438 INFO L495 AbstractCegarLoop]: Abstraction has 1247 states and 1702 transitions. [2023-11-29 06:45:48,438 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 7.722222222222222) internal successors, (139), 18 states have internal predecessors, (139), 6 states have call successors, (17), 1 states have call predecessors, (17), 3 states have return successors, (17), 7 states have call predecessors, (17), 6 states have call successors, (17) [2023-11-29 06:45:48,439 INFO L276 IsEmpty]: Start isEmpty. Operand 1247 states and 1702 transitions. [2023-11-29 06:45:48,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2023-11-29 06:45:48,440 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:45:48,440 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:45:48,444 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (87)] Forceful destruction successful, exit code 0 [2023-11-29 06:45:48,640 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable85,87 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:45:48,640 INFO L420 AbstractCegarLoop]: === Iteration 87 === Targeting ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 06:45:48,640 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:45:48,641 INFO L85 PathProgramCache]: Analyzing trace with hash 539259294, now seen corresponding path program 1 times [2023-11-29 06:45:48,641 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:45:48,641 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [572706201] [2023-11-29 06:45:48,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:45:48,641 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:45:48,651 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:45:48,651 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1831394750] [2023-11-29 06:45:48,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:45:48,652 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:45:48,652 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:45:48,653 INFO L229 MonitoredProcess]: Starting monitored process 88 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:45:48,653 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (88)] Waiting until timeout for monitored process [2023-11-29 06:45:48,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:45:48,733 INFO L262 TraceCheckSpWp]: Trace formula consists of 357 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-29 06:45:48,736 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:45:49,317 INFO L134 CoverageAnalysis]: Checked inductivity of 400 backedges. 72 proven. 78 refuted. 0 times theorem prover too weak. 250 trivial. 0 not checked. [2023-11-29 06:45:49,317 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:45:53,663 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:45:53,663 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [572706201] [2023-11-29 06:45:53,664 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:45:53,664 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1831394750] [2023-11-29 06:45:53,664 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1831394750] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:45:53,664 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:45:53,664 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2023-11-29 06:45:53,664 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [572071276] [2023-11-29 06:45:53,664 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:45:53,664 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 06:45:53,664 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:45:53,665 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 06:45:53,665 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=167, Unknown=1, NotChecked=0, Total=210 [2023-11-29 06:45:53,665 INFO L87 Difference]: Start difference. First operand 1247 states and 1702 transitions. Second operand has 12 states, 11 states have (on average 13.090909090909092) internal successors, (144), 12 states have internal predecessors, (144), 4 states have call successors, (17), 1 states have call predecessors, (17), 2 states have return successors, (17), 5 states have call predecessors, (17), 4 states have call successors, (17) [2023-11-29 06:46:01,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:46:01,460 INFO L93 Difference]: Finished difference Result 1551 states and 2092 transitions. [2023-11-29 06:46:01,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-11-29 06:46:01,461 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 13.090909090909092) internal successors, (144), 12 states have internal predecessors, (144), 4 states have call successors, (17), 1 states have call predecessors, (17), 2 states have return successors, (17), 5 states have call predecessors, (17), 4 states have call successors, (17) Word has length 220 [2023-11-29 06:46:01,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:46:01,462 INFO L225 Difference]: With dead ends: 1551 [2023-11-29 06:46:01,462 INFO L226 Difference]: Without dead ends: 1546 [2023-11-29 06:46:01,462 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 248 GetRequests, 225 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 5.0s TimeCoverageRelationStatistics Valid=144, Invalid=455, Unknown=1, NotChecked=0, Total=600 [2023-11-29 06:46:01,463 INFO L413 NwaCegarLoop]: 172 mSDtfsCounter, 354 mSDsluCounter, 761 mSDsCounter, 0 mSdLazyCounter, 1719 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 356 SdHoareTripleChecker+Valid, 933 SdHoareTripleChecker+Invalid, 1741 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 1719 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time [2023-11-29 06:46:01,463 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [356 Valid, 933 Invalid, 1741 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 1719 Invalid, 0 Unknown, 0 Unchecked, 6.9s Time] [2023-11-29 06:46:01,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1546 states. [2023-11-29 06:46:01,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1546 to 1458. [2023-11-29 06:46:01,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1458 states, 1286 states have (on average 1.4066874027993779) internal successors, (1809), 1340 states have internal predecessors, (1809), 115 states have call successors, (115), 2 states have call predecessors, (115), 2 states have return successors, (115), 115 states have call predecessors, (115), 115 states have call successors, (115) [2023-11-29 06:46:01,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1458 states to 1458 states and 2039 transitions. [2023-11-29 06:46:01,635 INFO L78 Accepts]: Start accepts. Automaton has 1458 states and 2039 transitions. Word has length 220 [2023-11-29 06:46:01,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:46:01,635 INFO L495 AbstractCegarLoop]: Abstraction has 1458 states and 2039 transitions. [2023-11-29 06:46:01,635 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 13.090909090909092) internal successors, (144), 12 states have internal predecessors, (144), 4 states have call successors, (17), 1 states have call predecessors, (17), 2 states have return successors, (17), 5 states have call predecessors, (17), 4 states have call successors, (17) [2023-11-29 06:46:01,635 INFO L276 IsEmpty]: Start isEmpty. Operand 1458 states and 2039 transitions. [2023-11-29 06:46:01,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2023-11-29 06:46:01,636 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:46:01,636 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:46:01,641 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (88)] Ended with exit code 0 [2023-11-29 06:46:01,837 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable86,88 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:46:01,837 INFO L420 AbstractCegarLoop]: === Iteration 88 === Targeting ULTIMATE.startErr43ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 06:46:01,837 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:46:01,837 INFO L85 PathProgramCache]: Analyzing trace with hash 1860002126, now seen corresponding path program 1 times [2023-11-29 06:46:01,837 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:46:01,837 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [802401040] [2023-11-29 06:46:01,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:46:01,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:46:01,848 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:46:01,848 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1943566543] [2023-11-29 06:46:01,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:46:01,848 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:46:01,848 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:46:01,849 INFO L229 MonitoredProcess]: Starting monitored process 89 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:46:01,849 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (89)] Waiting until timeout for monitored process [2023-11-29 06:46:01,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:46:01,919 INFO L262 TraceCheckSpWp]: Trace formula consists of 353 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 06:46:01,921 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:46:02,039 INFO L134 CoverageAnalysis]: Checked inductivity of 462 backedges. 0 proven. 138 refuted. 0 times theorem prover too weak. 324 trivial. 0 not checked. [2023-11-29 06:46:02,039 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:46:02,195 INFO L134 CoverageAnalysis]: Checked inductivity of 462 backedges. 0 proven. 138 refuted. 0 times theorem prover too weak. 324 trivial. 0 not checked. [2023-11-29 06:46:02,196 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:46:02,196 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [802401040] [2023-11-29 06:46:02,196 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:46:02,196 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1943566543] [2023-11-29 06:46:02,196 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1943566543] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 06:46:02,196 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 06:46:02,196 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2023-11-29 06:46:02,196 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1682167031] [2023-11-29 06:46:02,196 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 06:46:02,197 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 06:46:02,197 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:46:02,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 06:46:02,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2023-11-29 06:46:02,198 INFO L87 Difference]: Start difference. First operand 1458 states and 2039 transitions. Second operand has 8 states, 7 states have (on average 38.285714285714285) internal successors, (268), 8 states have internal predecessors, (268), 7 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 7 states have call predecessors, (30), 7 states have call successors, (30) [2023-11-29 06:46:03,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:46:03,152 INFO L93 Difference]: Finished difference Result 3124 states and 4117 transitions. [2023-11-29 06:46:03,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 06:46:03,153 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 38.285714285714285) internal successors, (268), 8 states have internal predecessors, (268), 7 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 7 states have call predecessors, (30), 7 states have call successors, (30) Word has length 225 [2023-11-29 06:46:03,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:46:03,155 INFO L225 Difference]: With dead ends: 3124 [2023-11-29 06:46:03,155 INFO L226 Difference]: Without dead ends: 3123 [2023-11-29 06:46:03,156 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 448 GetRequests, 442 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2023-11-29 06:46:03,156 INFO L413 NwaCegarLoop]: 137 mSDtfsCounter, 627 mSDsluCounter, 599 mSDsCounter, 0 mSdLazyCounter, 206 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 634 SdHoareTripleChecker+Valid, 736 SdHoareTripleChecker+Invalid, 222 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 206 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-29 06:46:03,156 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [634 Valid, 736 Invalid, 222 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 206 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-29 06:46:03,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3123 states. [2023-11-29 06:46:03,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3123 to 2593. [2023-11-29 06:46:03,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2593 states, 2321 states have (on average 1.3722533390779836) internal successors, (3185), 2375 states have internal predecessors, (3185), 215 states have call successors, (215), 2 states have call predecessors, (215), 2 states have return successors, (215), 215 states have call predecessors, (215), 215 states have call successors, (215) [2023-11-29 06:46:03,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2593 states to 2593 states and 3615 transitions. [2023-11-29 06:46:03,546 INFO L78 Accepts]: Start accepts. Automaton has 2593 states and 3615 transitions. Word has length 225 [2023-11-29 06:46:03,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:46:03,546 INFO L495 AbstractCegarLoop]: Abstraction has 2593 states and 3615 transitions. [2023-11-29 06:46:03,547 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 38.285714285714285) internal successors, (268), 8 states have internal predecessors, (268), 7 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 7 states have call predecessors, (30), 7 states have call successors, (30) [2023-11-29 06:46:03,547 INFO L276 IsEmpty]: Start isEmpty. Operand 2593 states and 3615 transitions. [2023-11-29 06:46:03,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2023-11-29 06:46:03,548 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:46:03,548 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:46:03,552 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (89)] Ended with exit code 0 [2023-11-29 06:46:03,749 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable87,89 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:46:03,749 INFO L420 AbstractCegarLoop]: === Iteration 89 === Targeting ULTIMATE.startErr49ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 06:46:03,749 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:46:03,749 INFO L85 PathProgramCache]: Analyzing trace with hash -954272990, now seen corresponding path program 2 times [2023-11-29 06:46:03,749 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:46:03,749 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [447623802] [2023-11-29 06:46:03,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:46:03,749 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:46:03,759 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:46:03,760 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1217151960] [2023-11-29 06:46:03,760 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 06:46:03,760 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:46:03,760 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:46:03,761 INFO L229 MonitoredProcess]: Starting monitored process 90 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:46:03,761 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (90)] Waiting until timeout for monitored process [2023-11-29 06:46:03,836 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 06:46:03,836 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 06:46:03,837 INFO L262 TraceCheckSpWp]: Trace formula consists of 367 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-29 06:46:03,839 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:46:04,173 INFO L134 CoverageAnalysis]: Checked inductivity of 454 backedges. 0 proven. 130 refuted. 0 times theorem prover too weak. 324 trivial. 0 not checked. [2023-11-29 06:46:04,173 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:46:04,339 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:46:04,339 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [447623802] [2023-11-29 06:46:04,339 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:46:04,339 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1217151960] [2023-11-29 06:46:04,339 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1217151960] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:46:04,339 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:46:04,339 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2023-11-29 06:46:04,340 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [839520937] [2023-11-29 06:46:04,340 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:46:04,340 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 06:46:04,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:46:04,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 06:46:04,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=30, Unknown=0, NotChecked=0, Total=56 [2023-11-29 06:46:04,341 INFO L87 Difference]: Start difference. First operand 2593 states and 3615 transitions. Second operand has 6 states, 5 states have (on average 28.8) internal successors, (144), 6 states have internal predecessors, (144), 5 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 5 states have call predecessors, (18), 5 states have call successors, (18) [2023-11-29 06:46:04,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:46:04,991 INFO L93 Difference]: Finished difference Result 2607 states and 3625 transitions. [2023-11-29 06:46:04,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 06:46:04,992 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 28.8) internal successors, (144), 6 states have internal predecessors, (144), 5 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 5 states have call predecessors, (18), 5 states have call successors, (18) Word has length 228 [2023-11-29 06:46:04,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:46:04,994 INFO L225 Difference]: With dead ends: 2607 [2023-11-29 06:46:04,994 INFO L226 Difference]: Without dead ends: 2606 [2023-11-29 06:46:04,995 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 298 GetRequests, 292 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=30, Unknown=0, NotChecked=0, Total=56 [2023-11-29 06:46:04,995 INFO L413 NwaCegarLoop]: 124 mSDtfsCounter, 105 mSDsluCounter, 236 mSDsCounter, 0 mSdLazyCounter, 257 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 360 SdHoareTripleChecker+Invalid, 261 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 257 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 06:46:04,995 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [111 Valid, 360 Invalid, 261 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 257 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 06:46:04,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2606 states. [2023-11-29 06:46:05,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2606 to 2600. [2023-11-29 06:46:05,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2600 states, 2328 states have (on average 1.3711340206185567) internal successors, (3192), 2382 states have internal predecessors, (3192), 215 states have call successors, (215), 2 states have call predecessors, (215), 2 states have return successors, (215), 215 states have call predecessors, (215), 215 states have call successors, (215) [2023-11-29 06:46:05,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2600 states to 2600 states and 3622 transitions. [2023-11-29 06:46:05,359 INFO L78 Accepts]: Start accepts. Automaton has 2600 states and 3622 transitions. Word has length 228 [2023-11-29 06:46:05,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:46:05,359 INFO L495 AbstractCegarLoop]: Abstraction has 2600 states and 3622 transitions. [2023-11-29 06:46:05,359 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 28.8) internal successors, (144), 6 states have internal predecessors, (144), 5 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 5 states have call predecessors, (18), 5 states have call successors, (18) [2023-11-29 06:46:05,359 INFO L276 IsEmpty]: Start isEmpty. Operand 2600 states and 3622 transitions. [2023-11-29 06:46:05,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2023-11-29 06:46:05,360 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:46:05,361 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:46:05,365 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (90)] Forceful destruction successful, exit code 0 [2023-11-29 06:46:05,561 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 90 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable88 [2023-11-29 06:46:05,561 INFO L420 AbstractCegarLoop]: === Iteration 90 === Targeting ULTIMATE.startErr44ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 06:46:05,561 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:46:05,561 INFO L85 PathProgramCache]: Analyzing trace with hash 670607993, now seen corresponding path program 1 times [2023-11-29 06:46:05,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:46:05,561 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1168065752] [2023-11-29 06:46:05,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:46:05,562 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:46:05,571 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:46:05,571 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [634125669] [2023-11-29 06:46:05,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:46:05,571 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:46:05,571 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:46:05,572 INFO L229 MonitoredProcess]: Starting monitored process 91 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:46:05,573 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (91)] Waiting until timeout for monitored process [2023-11-29 06:46:05,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:46:05,658 INFO L262 TraceCheckSpWp]: Trace formula consists of 378 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-29 06:46:05,660 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:46:05,984 INFO L134 CoverageAnalysis]: Checked inductivity of 454 backedges. 42 proven. 88 refuted. 0 times theorem prover too weak. 324 trivial. 0 not checked. [2023-11-29 06:46:05,984 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:46:06,086 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:46:06,086 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1168065752] [2023-11-29 06:46:06,086 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:46:06,086 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [634125669] [2023-11-29 06:46:06,087 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [634125669] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:46:06,087 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:46:06,087 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2023-11-29 06:46:06,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [169489842] [2023-11-29 06:46:06,087 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:46:06,087 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 06:46:06,087 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:46:06,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 06:46:06,087 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2023-11-29 06:46:06,088 INFO L87 Difference]: Start difference. First operand 2600 states and 3622 transitions. Second operand has 7 states, 6 states have (on average 24.333333333333332) internal successors, (146), 7 states have internal predecessors, (146), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18) [2023-11-29 06:46:07,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:46:07,920 INFO L93 Difference]: Finished difference Result 2641 states and 3640 transitions. [2023-11-29 06:46:07,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 06:46:07,920 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 24.333333333333332) internal successors, (146), 7 states have internal predecessors, (146), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18) Word has length 230 [2023-11-29 06:46:07,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:46:07,923 INFO L225 Difference]: With dead ends: 2641 [2023-11-29 06:46:07,923 INFO L226 Difference]: Without dead ends: 2639 [2023-11-29 06:46:07,924 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 295 GetRequests, 288 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2023-11-29 06:46:07,924 INFO L413 NwaCegarLoop]: 182 mSDtfsCounter, 54 mSDsluCounter, 439 mSDsCounter, 0 mSdLazyCounter, 565 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 621 SdHoareTripleChecker+Invalid, 566 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 565 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-11-29 06:46:07,924 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 621 Invalid, 566 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 565 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-11-29 06:46:07,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2639 states. [2023-11-29 06:46:08,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2639 to 2604. [2023-11-29 06:46:08,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2604 states, 2332 states have (on average 1.3649228130360205) internal successors, (3183), 2386 states have internal predecessors, (3183), 215 states have call successors, (215), 2 states have call predecessors, (215), 2 states have return successors, (215), 215 states have call predecessors, (215), 215 states have call successors, (215) [2023-11-29 06:46:08,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2604 states to 2604 states and 3613 transitions. [2023-11-29 06:46:08,304 INFO L78 Accepts]: Start accepts. Automaton has 2604 states and 3613 transitions. Word has length 230 [2023-11-29 06:46:08,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:46:08,304 INFO L495 AbstractCegarLoop]: Abstraction has 2604 states and 3613 transitions. [2023-11-29 06:46:08,305 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 24.333333333333332) internal successors, (146), 7 states have internal predecessors, (146), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18) [2023-11-29 06:46:08,305 INFO L276 IsEmpty]: Start isEmpty. Operand 2604 states and 3613 transitions. [2023-11-29 06:46:08,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2023-11-29 06:46:08,306 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:46:08,306 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 6, 6, 6, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:46:08,310 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (91)] Ended with exit code 0 [2023-11-29 06:46:08,506 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 91 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable89 [2023-11-29 06:46:08,506 INFO L420 AbstractCegarLoop]: === Iteration 91 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 06:46:08,506 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:46:08,506 INFO L85 PathProgramCache]: Analyzing trace with hash 1652299389, now seen corresponding path program 3 times [2023-11-29 06:46:08,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:46:08,507 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1352814181] [2023-11-29 06:46:08,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:46:08,507 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:46:08,516 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:46:08,516 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1694941876] [2023-11-29 06:46:08,516 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-29 06:46:08,516 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:46:08,516 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:46:08,517 INFO L229 MonitoredProcess]: Starting monitored process 92 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:46:08,527 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (92)] Waiting until timeout for monitored process [2023-11-29 06:46:08,575 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-11-29 06:46:08,575 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 06:46:08,576 INFO L262 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-29 06:46:08,578 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:46:08,650 INFO L134 CoverageAnalysis]: Checked inductivity of 477 backedges. 97 proven. 0 refuted. 0 times theorem prover too weak. 380 trivial. 0 not checked. [2023-11-29 06:46:08,650 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:46:08,650 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:46:08,650 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1352814181] [2023-11-29 06:46:08,650 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:46:08,650 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1694941876] [2023-11-29 06:46:08,650 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1694941876] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:46:08,650 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:46:08,650 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 06:46:08,651 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [5142584] [2023-11-29 06:46:08,651 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:46:08,651 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 06:46:08,651 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:46:08,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 06:46:08,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 06:46:08,652 INFO L87 Difference]: Start difference. First operand 2604 states and 3613 transitions. Second operand has 4 states, 3 states have (on average 33.333333333333336) internal successors, (100), 4 states have internal predecessors, (100), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-11-29 06:46:09,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:46:09,218 INFO L93 Difference]: Finished difference Result 2604 states and 3613 transitions. [2023-11-29 06:46:09,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 06:46:09,219 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 33.333333333333336) internal successors, (100), 4 states have internal predecessors, (100), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 230 [2023-11-29 06:46:09,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:46:09,221 INFO L225 Difference]: With dead ends: 2604 [2023-11-29 06:46:09,221 INFO L226 Difference]: Without dead ends: 2603 [2023-11-29 06:46:09,222 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 229 GetRequests, 227 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 06:46:09,222 INFO L413 NwaCegarLoop]: 127 mSDtfsCounter, 40 mSDsluCounter, 147 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 274 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 06:46:09,222 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 274 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 06:46:09,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2603 states. [2023-11-29 06:46:09,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2603 to 2603. [2023-11-29 06:46:09,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2603 states, 2332 states have (on average 1.3524871355060035) internal successors, (3154), 2385 states have internal predecessors, (3154), 215 states have call successors, (215), 2 states have call predecessors, (215), 2 states have return successors, (215), 215 states have call predecessors, (215), 215 states have call successors, (215) [2023-11-29 06:46:09,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2603 states to 2603 states and 3584 transitions. [2023-11-29 06:46:09,647 INFO L78 Accepts]: Start accepts. Automaton has 2603 states and 3584 transitions. Word has length 230 [2023-11-29 06:46:09,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:46:09,647 INFO L495 AbstractCegarLoop]: Abstraction has 2603 states and 3584 transitions. [2023-11-29 06:46:09,647 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 33.333333333333336) internal successors, (100), 4 states have internal predecessors, (100), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-11-29 06:46:09,647 INFO L276 IsEmpty]: Start isEmpty. Operand 2603 states and 3584 transitions. [2023-11-29 06:46:09,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2023-11-29 06:46:09,649 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:46:09,649 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:46:09,654 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (92)] Ended with exit code 0 [2023-11-29 06:46:09,849 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable90,92 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:46:09,849 INFO L420 AbstractCegarLoop]: === Iteration 92 === Targeting ULTIMATE.startErr45ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 06:46:09,849 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:46:09,850 INFO L85 PathProgramCache]: Analyzing trace with hash -685988529, now seen corresponding path program 1 times [2023-11-29 06:46:09,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:46:09,850 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [694490546] [2023-11-29 06:46:09,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:46:09,850 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:46:09,859 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:46:09,859 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [405725074] [2023-11-29 06:46:09,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:46:09,859 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:46:09,859 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:46:09,860 INFO L229 MonitoredProcess]: Starting monitored process 93 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:46:09,861 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (93)] Waiting until timeout for monitored process [2023-11-29 06:46:09,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:46:09,945 INFO L262 TraceCheckSpWp]: Trace formula consists of 379 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-29 06:46:09,947 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:46:10,286 INFO L134 CoverageAnalysis]: Checked inductivity of 455 backedges. 0 proven. 131 refuted. 0 times theorem prover too weak. 324 trivial. 0 not checked. [2023-11-29 06:46:10,286 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:46:39,274 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:46:39,274 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [694490546] [2023-11-29 06:46:39,274 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:46:39,274 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [405725074] [2023-11-29 06:46:39,274 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [405725074] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:46:39,274 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:46:39,274 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2023-11-29 06:46:39,274 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2091331506] [2023-11-29 06:46:39,275 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:46:39,275 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 06:46:39,275 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:46:39,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 06:46:39,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=84, Unknown=8, NotChecked=0, Total=132 [2023-11-29 06:46:39,276 INFO L87 Difference]: Start difference. First operand 2603 states and 3584 transitions. Second operand has 7 states, 6 states have (on average 24.5) internal successors, (147), 7 states have internal predecessors, (147), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18) [2023-11-29 06:46:40,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:46:40,723 INFO L93 Difference]: Finished difference Result 2652 states and 3604 transitions. [2023-11-29 06:46:40,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-29 06:46:40,724 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 24.5) internal successors, (147), 7 states have internal predecessors, (147), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18) Word has length 231 [2023-11-29 06:46:40,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:46:40,727 INFO L225 Difference]: With dead ends: 2652 [2023-11-29 06:46:40,727 INFO L226 Difference]: Without dead ends: 2651 [2023-11-29 06:46:40,728 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 371 GetRequests, 356 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 28.9s TimeCoverageRelationStatistics Valid=94, Invalid=170, Unknown=8, NotChecked=0, Total=272 [2023-11-29 06:46:40,728 INFO L413 NwaCegarLoop]: 141 mSDtfsCounter, 179 mSDsluCounter, 242 mSDsCounter, 0 mSdLazyCounter, 459 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 183 SdHoareTripleChecker+Valid, 383 SdHoareTripleChecker+Invalid, 467 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 459 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-11-29 06:46:40,728 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [183 Valid, 383 Invalid, 467 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 459 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-11-29 06:46:40,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2651 states. [2023-11-29 06:46:41,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2651 to 2607. [2023-11-29 06:46:41,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2607 states, 2336 states have (on average 1.3514554794520548) internal successors, (3157), 2389 states have internal predecessors, (3157), 215 states have call successors, (215), 2 states have call predecessors, (215), 2 states have return successors, (215), 215 states have call predecessors, (215), 215 states have call successors, (215) [2023-11-29 06:46:41,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2607 states to 2607 states and 3587 transitions. [2023-11-29 06:46:41,113 INFO L78 Accepts]: Start accepts. Automaton has 2607 states and 3587 transitions. Word has length 231 [2023-11-29 06:46:41,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:46:41,114 INFO L495 AbstractCegarLoop]: Abstraction has 2607 states and 3587 transitions. [2023-11-29 06:46:41,114 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 24.5) internal successors, (147), 7 states have internal predecessors, (147), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18) [2023-11-29 06:46:41,114 INFO L276 IsEmpty]: Start isEmpty. Operand 2607 states and 3587 transitions. [2023-11-29 06:46:41,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2023-11-29 06:46:41,115 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:46:41,115 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:46:41,121 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (93)] Ended with exit code 0 [2023-11-29 06:46:41,315 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable91,93 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:46:41,316 INFO L420 AbstractCegarLoop]: === Iteration 93 === Targeting ULTIMATE.startErr46ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 06:46:41,316 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:46:41,316 INFO L85 PathProgramCache]: Analyzing trace with hash 209192251, now seen corresponding path program 1 times [2023-11-29 06:46:41,316 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:46:41,316 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1695608810] [2023-11-29 06:46:41,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:46:41,316 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:46:41,331 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:46:41,331 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [636522653] [2023-11-29 06:46:41,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:46:41,331 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:46:41,331 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:46:41,332 INFO L229 MonitoredProcess]: Starting monitored process 94 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:46:41,333 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (94)] Waiting until timeout for monitored process [2023-11-29 06:46:41,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:46:41,416 INFO L262 TraceCheckSpWp]: Trace formula consists of 380 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 06:46:41,418 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:46:41,576 INFO L134 CoverageAnalysis]: Checked inductivity of 456 backedges. 0 proven. 90 refuted. 0 times theorem prover too weak. 366 trivial. 0 not checked. [2023-11-29 06:46:41,576 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:46:46,601 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:46:46,602 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1695608810] [2023-11-29 06:46:46,602 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:46:46,602 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [636522653] [2023-11-29 06:46:46,602 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [636522653] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:46:46,602 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:46:46,602 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2023-11-29 06:46:46,602 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [920395126] [2023-11-29 06:46:46,602 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:46:46,603 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 06:46:46,603 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:46:46,603 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 06:46:46,603 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=50, Unknown=2, NotChecked=0, Total=72 [2023-11-29 06:46:46,603 INFO L87 Difference]: Start difference. First operand 2607 states and 3587 transitions. Second operand has 6 states, 5 states have (on average 22.2) internal successors, (111), 6 states have internal predecessors, (111), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2023-11-29 06:46:47,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:46:47,917 INFO L93 Difference]: Finished difference Result 2632 states and 3597 transitions. [2023-11-29 06:46:47,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 06:46:47,917 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 22.2) internal successors, (111), 6 states have internal predecessors, (111), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 232 [2023-11-29 06:46:47,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:46:47,920 INFO L225 Difference]: With dead ends: 2632 [2023-11-29 06:46:47,920 INFO L226 Difference]: Without dead ends: 2631 [2023-11-29 06:46:47,920 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 240 GetRequests, 230 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 5.0s TimeCoverageRelationStatistics Valid=44, Invalid=86, Unknown=2, NotChecked=0, Total=132 [2023-11-29 06:46:47,920 INFO L413 NwaCegarLoop]: 128 mSDtfsCounter, 41 mSDsluCounter, 344 mSDsCounter, 0 mSdLazyCounter, 142 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 472 SdHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 142 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-29 06:46:47,920 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 472 Invalid, 145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 142 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-29 06:46:47,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2631 states. [2023-11-29 06:46:48,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2631 to 2610. [2023-11-29 06:46:48,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2610 states, 2339 states have (on average 1.3505771697306541) internal successors, (3159), 2392 states have internal predecessors, (3159), 215 states have call successors, (215), 2 states have call predecessors, (215), 2 states have return successors, (215), 215 states have call predecessors, (215), 215 states have call successors, (215) [2023-11-29 06:46:48,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2610 states to 2610 states and 3589 transitions. [2023-11-29 06:46:48,284 INFO L78 Accepts]: Start accepts. Automaton has 2610 states and 3589 transitions. Word has length 232 [2023-11-29 06:46:48,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:46:48,285 INFO L495 AbstractCegarLoop]: Abstraction has 2610 states and 3589 transitions. [2023-11-29 06:46:48,285 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 22.2) internal successors, (111), 6 states have internal predecessors, (111), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2023-11-29 06:46:48,285 INFO L276 IsEmpty]: Start isEmpty. Operand 2610 states and 3589 transitions. [2023-11-29 06:46:48,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2023-11-29 06:46:48,286 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:46:48,286 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:46:48,290 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (94)] Ended with exit code 0 [2023-11-29 06:46:48,486 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable92,94 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:46:48,486 INFO L420 AbstractCegarLoop]: === Iteration 94 === Targeting ULTIMATE.startErr47ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 06:46:48,487 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:46:48,487 INFO L85 PathProgramCache]: Analyzing trace with hash -2104974639, now seen corresponding path program 1 times [2023-11-29 06:46:48,487 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:46:48,487 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1109840720] [2023-11-29 06:46:48,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:46:48,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:46:48,496 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:46:48,496 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [108939487] [2023-11-29 06:46:48,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:46:48,497 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:46:48,497 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:46:48,497 INFO L229 MonitoredProcess]: Starting monitored process 95 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:46:48,498 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (95)] Waiting until timeout for monitored process [2023-11-29 06:46:48,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:46:48,594 INFO L262 TraceCheckSpWp]: Trace formula consists of 381 conjuncts, 19 conjunts are in the unsatisfiable core [2023-11-29 06:46:48,596 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:46:49,201 INFO L134 CoverageAnalysis]: Checked inductivity of 457 backedges. 0 proven. 133 refuted. 0 times theorem prover too weak. 324 trivial. 0 not checked. [2023-11-29 06:46:49,201 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:46:49,550 INFO L134 CoverageAnalysis]: Checked inductivity of 457 backedges. 0 proven. 133 refuted. 0 times theorem prover too weak. 324 trivial. 0 not checked. [2023-11-29 06:46:49,550 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:46:49,550 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1109840720] [2023-11-29 06:46:49,551 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:46:49,551 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [108939487] [2023-11-29 06:46:49,551 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [108939487] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 06:46:49,551 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 06:46:49,551 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 15 [2023-11-29 06:46:49,551 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1074050875] [2023-11-29 06:46:49,551 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 06:46:49,552 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-11-29 06:46:49,552 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:46:49,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-11-29 06:46:49,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=178, Unknown=0, NotChecked=0, Total=240 [2023-11-29 06:46:49,553 INFO L87 Difference]: Start difference. First operand 2610 states and 3589 transitions. Second operand has 16 states, 15 states have (on average 19.333333333333332) internal successors, (290), 16 states have internal predecessors, (290), 9 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 9 states have call predecessors, (32), 9 states have call successors, (32) [2023-11-29 06:46:55,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:46:55,656 INFO L93 Difference]: Finished difference Result 3420 states and 4607 transitions. [2023-11-29 06:46:55,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2023-11-29 06:46:55,657 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 19.333333333333332) internal successors, (290), 16 states have internal predecessors, (290), 9 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 9 states have call predecessors, (32), 9 states have call successors, (32) Word has length 233 [2023-11-29 06:46:55,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:46:55,660 INFO L225 Difference]: With dead ends: 3420 [2023-11-29 06:46:55,660 INFO L226 Difference]: Without dead ends: 3419 [2023-11-29 06:46:55,661 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 482 GetRequests, 450 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 255 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=313, Invalid=809, Unknown=0, NotChecked=0, Total=1122 [2023-11-29 06:46:55,661 INFO L413 NwaCegarLoop]: 124 mSDtfsCounter, 1040 mSDsluCounter, 982 mSDsCounter, 0 mSdLazyCounter, 1888 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1051 SdHoareTripleChecker+Valid, 1106 SdHoareTripleChecker+Invalid, 1961 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 1888 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2023-11-29 06:46:55,661 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1051 Valid, 1106 Invalid, 1961 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 1888 Invalid, 0 Unknown, 0 Unchecked, 5.1s Time] [2023-11-29 06:46:55,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3419 states. [2023-11-29 06:46:56,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3419 to 2717. [2023-11-29 06:46:56,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2717 states, 2438 states have (on average 1.3613617719442166) internal successors, (3319), 2491 states have internal predecessors, (3319), 223 states have call successors, (223), 2 states have call predecessors, (223), 2 states have return successors, (223), 223 states have call predecessors, (223), 223 states have call successors, (223) [2023-11-29 06:46:56,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2717 states to 2717 states and 3765 transitions. [2023-11-29 06:46:56,075 INFO L78 Accepts]: Start accepts. Automaton has 2717 states and 3765 transitions. Word has length 233 [2023-11-29 06:46:56,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:46:56,075 INFO L495 AbstractCegarLoop]: Abstraction has 2717 states and 3765 transitions. [2023-11-29 06:46:56,075 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 19.333333333333332) internal successors, (290), 16 states have internal predecessors, (290), 9 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 9 states have call predecessors, (32), 9 states have call successors, (32) [2023-11-29 06:46:56,075 INFO L276 IsEmpty]: Start isEmpty. Operand 2717 states and 3765 transitions. [2023-11-29 06:46:56,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2023-11-29 06:46:56,077 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:46:56,077 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:46:56,081 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (95)] Forceful destruction successful, exit code 0 [2023-11-29 06:46:56,277 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable93,95 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:46:56,277 INFO L420 AbstractCegarLoop]: === Iteration 95 === Targeting ULTIMATE.startErr48ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 06:46:56,277 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:46:56,278 INFO L85 PathProgramCache]: Analyzing trace with hash -829704195, now seen corresponding path program 1 times [2023-11-29 06:46:56,278 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:46:56,278 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1051255771] [2023-11-29 06:46:56,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:46:56,278 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:46:56,288 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:46:56,288 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [217962621] [2023-11-29 06:46:56,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:46:56,288 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:46:56,288 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:46:56,289 INFO L229 MonitoredProcess]: Starting monitored process 96 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:46:56,290 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (96)] Waiting until timeout for monitored process [2023-11-29 06:46:56,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:46:56,378 INFO L262 TraceCheckSpWp]: Trace formula consists of 388 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-29 06:46:56,381 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:46:56,833 INFO L134 CoverageAnalysis]: Checked inductivity of 458 backedges. 42 proven. 92 refuted. 0 times theorem prover too weak. 324 trivial. 0 not checked. [2023-11-29 06:46:56,833 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:46:56,959 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:46:56,959 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1051255771] [2023-11-29 06:46:56,959 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:46:56,959 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [217962621] [2023-11-29 06:46:56,959 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [217962621] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:46:56,959 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:46:56,959 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2023-11-29 06:46:56,959 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1131031589] [2023-11-29 06:46:56,960 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:46:56,960 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 06:46:56,960 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:46:56,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 06:46:56,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2023-11-29 06:46:56,961 INFO L87 Difference]: Start difference. First operand 2717 states and 3765 transitions. Second operand has 8 states, 7 states have (on average 21.428571428571427) internal successors, (150), 8 states have internal predecessors, (150), 5 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 5 states have call predecessors, (18), 5 states have call successors, (18) [2023-11-29 06:46:58,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:46:58,442 INFO L93 Difference]: Finished difference Result 2727 states and 3765 transitions. [2023-11-29 06:46:58,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 06:46:58,442 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 21.428571428571427) internal successors, (150), 8 states have internal predecessors, (150), 5 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 5 states have call predecessors, (18), 5 states have call successors, (18) Word has length 234 [2023-11-29 06:46:58,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:46:58,444 INFO L225 Difference]: With dead ends: 2727 [2023-11-29 06:46:58,444 INFO L226 Difference]: Without dead ends: 2726 [2023-11-29 06:46:58,445 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 306 GetRequests, 295 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=55, Invalid=101, Unknown=0, NotChecked=0, Total=156 [2023-11-29 06:46:58,445 INFO L413 NwaCegarLoop]: 139 mSDtfsCounter, 109 mSDsluCounter, 401 mSDsCounter, 0 mSdLazyCounter, 525 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 540 SdHoareTripleChecker+Invalid, 539 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 525 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-11-29 06:46:58,445 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [109 Valid, 540 Invalid, 539 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 525 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-11-29 06:46:58,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2726 states. [2023-11-29 06:46:58,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2726 to 2717. [2023-11-29 06:46:58,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2717 states, 2438 states have (on average 1.3601312551271534) internal successors, (3316), 2491 states have internal predecessors, (3316), 223 states have call successors, (223), 2 states have call predecessors, (223), 2 states have return successors, (223), 223 states have call predecessors, (223), 223 states have call successors, (223) [2023-11-29 06:46:58,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2717 states to 2717 states and 3762 transitions. [2023-11-29 06:46:58,832 INFO L78 Accepts]: Start accepts. Automaton has 2717 states and 3762 transitions. Word has length 234 [2023-11-29 06:46:58,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:46:58,833 INFO L495 AbstractCegarLoop]: Abstraction has 2717 states and 3762 transitions. [2023-11-29 06:46:58,833 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 21.428571428571427) internal successors, (150), 8 states have internal predecessors, (150), 5 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 5 states have call predecessors, (18), 5 states have call successors, (18) [2023-11-29 06:46:58,833 INFO L276 IsEmpty]: Start isEmpty. Operand 2717 states and 3762 transitions. [2023-11-29 06:46:58,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2023-11-29 06:46:58,834 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:46:58,834 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 6, 6, 6, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:46:58,838 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (96)] Ended with exit code 0 [2023-11-29 06:46:59,034 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable94,96 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:46:59,035 INFO L420 AbstractCegarLoop]: === Iteration 96 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 06:46:59,035 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:46:59,035 INFO L85 PathProgramCache]: Analyzing trace with hash -1483167419, now seen corresponding path program 2 times [2023-11-29 06:46:59,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:46:59,035 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [137785970] [2023-11-29 06:46:59,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:46:59,035 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:46:59,045 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:46:59,045 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [68728825] [2023-11-29 06:46:59,045 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 06:46:59,045 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:46:59,045 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:46:59,046 INFO L229 MonitoredProcess]: Starting monitored process 97 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:46:59,047 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (97)] Waiting until timeout for monitored process [2023-11-29 06:46:59,124 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 06:46:59,124 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 06:46:59,126 INFO L262 TraceCheckSpWp]: Trace formula consists of 379 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-29 06:46:59,128 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:46:59,385 INFO L134 CoverageAnalysis]: Checked inductivity of 462 backedges. 90 proven. 48 refuted. 0 times theorem prover too weak. 324 trivial. 0 not checked. [2023-11-29 06:46:59,385 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:46:59,438 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:46:59,438 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [137785970] [2023-11-29 06:46:59,438 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:46:59,438 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [68728825] [2023-11-29 06:46:59,438 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [68728825] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:46:59,438 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:46:59,439 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2023-11-29 06:46:59,439 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [960466636] [2023-11-29 06:46:59,439 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:46:59,439 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 06:46:59,439 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:46:59,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 06:46:59,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2023-11-29 06:46:59,439 INFO L87 Difference]: Start difference. First operand 2717 states and 3762 transitions. Second operand has 7 states, 6 states have (on average 25.0) internal successors, (150), 7 states have internal predecessors, (150), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2023-11-29 06:47:00,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:47:00,443 INFO L93 Difference]: Finished difference Result 2743 states and 3762 transitions. [2023-11-29 06:47:00,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-29 06:47:00,443 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 25.0) internal successors, (150), 7 states have internal predecessors, (150), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 234 [2023-11-29 06:47:00,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:47:00,446 INFO L225 Difference]: With dead ends: 2743 [2023-11-29 06:47:00,446 INFO L226 Difference]: Without dead ends: 2741 [2023-11-29 06:47:00,446 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 250 GetRequests, 236 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=83, Invalid=157, Unknown=0, NotChecked=0, Total=240 [2023-11-29 06:47:00,446 INFO L413 NwaCegarLoop]: 275 mSDtfsCounter, 284 mSDsluCounter, 499 mSDsCounter, 0 mSdLazyCounter, 278 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 286 SdHoareTripleChecker+Valid, 774 SdHoareTripleChecker+Invalid, 290 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 278 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-29 06:47:00,446 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [286 Valid, 774 Invalid, 290 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 278 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-29 06:47:00,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2741 states. [2023-11-29 06:47:00,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2741 to 2355. [2023-11-29 06:47:00,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2355 states, 2106 states have (on average 1.2939221272554606) internal successors, (2725), 2157 states have internal predecessors, (2725), 195 states have call successors, (195), 2 states have call predecessors, (195), 2 states have return successors, (195), 195 states have call predecessors, (195), 195 states have call successors, (195) [2023-11-29 06:47:00,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2355 states to 2355 states and 3115 transitions. [2023-11-29 06:47:00,811 INFO L78 Accepts]: Start accepts. Automaton has 2355 states and 3115 transitions. Word has length 234 [2023-11-29 06:47:00,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:47:00,811 INFO L495 AbstractCegarLoop]: Abstraction has 2355 states and 3115 transitions. [2023-11-29 06:47:00,811 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 25.0) internal successors, (150), 7 states have internal predecessors, (150), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2023-11-29 06:47:00,811 INFO L276 IsEmpty]: Start isEmpty. Operand 2355 states and 3115 transitions. [2023-11-29 06:47:00,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2023-11-29 06:47:00,813 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:47:00,813 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:47:00,817 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (97)] Ended with exit code 0 [2023-11-29 06:47:01,013 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable95,97 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:47:01,013 INFO L420 AbstractCegarLoop]: === Iteration 97 === Targeting ULTIMATE.startErr53ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 06:47:01,013 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:47:01,013 INFO L85 PathProgramCache]: Analyzing trace with hash 1127389289, now seen corresponding path program 2 times [2023-11-29 06:47:01,013 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:47:01,014 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [121763594] [2023-11-29 06:47:01,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:47:01,014 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:47:01,023 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:47:01,023 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1296548788] [2023-11-29 06:47:01,023 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 06:47:01,023 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:47:01,023 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:47:01,024 INFO L229 MonitoredProcess]: Starting monitored process 98 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:47:01,025 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (98)] Waiting until timeout for monitored process [2023-11-29 06:47:01,111 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 06:47:01,111 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 06:47:01,113 INFO L262 TraceCheckSpWp]: Trace formula consists of 376 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-29 06:47:01,115 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:47:02,466 INFO L134 CoverageAnalysis]: Checked inductivity of 456 backedges. 0 proven. 147 refuted. 0 times theorem prover too weak. 309 trivial. 0 not checked. [2023-11-29 06:47:02,466 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:47:10,624 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:47:10,624 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [121763594] [2023-11-29 06:47:10,624 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:47:10,624 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1296548788] [2023-11-29 06:47:10,624 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1296548788] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:47:10,624 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:47:10,625 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2023-11-29 06:47:10,625 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1425679474] [2023-11-29 06:47:10,625 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:47:10,625 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-29 06:47:10,625 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:47:10,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-29 06:47:10,626 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=205, Unknown=2, NotChecked=0, Total=272 [2023-11-29 06:47:10,626 INFO L87 Difference]: Start difference. First operand 2355 states and 3115 transitions. Second operand has 13 states, 12 states have (on average 12.75) internal successors, (153), 13 states have internal predecessors, (153), 6 states have call successors, (18), 1 states have call predecessors, (18), 2 states have return successors, (18), 5 states have call predecessors, (18), 6 states have call successors, (18) [2023-11-29 06:47:12,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:47:12,793 INFO L93 Difference]: Finished difference Result 2711 states and 3545 transitions. [2023-11-29 06:47:12,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-29 06:47:12,794 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 12.75) internal successors, (153), 13 states have internal predecessors, (153), 6 states have call successors, (18), 1 states have call predecessors, (18), 2 states have return successors, (18), 5 states have call predecessors, (18), 6 states have call successors, (18) Word has length 234 [2023-11-29 06:47:12,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:47:12,796 INFO L225 Difference]: With dead ends: 2711 [2023-11-29 06:47:12,797 INFO L226 Difference]: Without dead ends: 2709 [2023-11-29 06:47:12,797 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 256 GetRequests, 233 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 8.3s TimeCoverageRelationStatistics Valid=143, Invalid=455, Unknown=2, NotChecked=0, Total=600 [2023-11-29 06:47:12,797 INFO L413 NwaCegarLoop]: 151 mSDtfsCounter, 375 mSDsluCounter, 1065 mSDsCounter, 0 mSdLazyCounter, 1833 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 388 SdHoareTripleChecker+Valid, 1216 SdHoareTripleChecker+Invalid, 1855 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 1833 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-11-29 06:47:12,797 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [388 Valid, 1216 Invalid, 1855 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 1833 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-11-29 06:47:12,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2709 states. [2023-11-29 06:47:13,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2709 to 2376. [2023-11-29 06:47:13,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2376 states, 2125 states have (on average 1.291764705882353) internal successors, (2745), 2176 states have internal predecessors, (2745), 197 states have call successors, (197), 2 states have call predecessors, (197), 2 states have return successors, (197), 197 states have call predecessors, (197), 197 states have call successors, (197) [2023-11-29 06:47:13,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2376 states to 2376 states and 3139 transitions. [2023-11-29 06:47:13,170 INFO L78 Accepts]: Start accepts. Automaton has 2376 states and 3139 transitions. Word has length 234 [2023-11-29 06:47:13,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:47:13,170 INFO L495 AbstractCegarLoop]: Abstraction has 2376 states and 3139 transitions. [2023-11-29 06:47:13,170 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 12.75) internal successors, (153), 13 states have internal predecessors, (153), 6 states have call successors, (18), 1 states have call predecessors, (18), 2 states have return successors, (18), 5 states have call predecessors, (18), 6 states have call successors, (18) [2023-11-29 06:47:13,170 INFO L276 IsEmpty]: Start isEmpty. Operand 2376 states and 3139 transitions. [2023-11-29 06:47:13,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2023-11-29 06:47:13,171 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:47:13,171 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:47:13,175 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (98)] Ended with exit code 0 [2023-11-29 06:47:13,372 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 98 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable96 [2023-11-29 06:47:13,372 INFO L420 AbstractCegarLoop]: === Iteration 98 === Targeting ULTIMATE.startErr49ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 06:47:13,372 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:47:13,372 INFO L85 PathProgramCache]: Analyzing trace with hash 48973907, now seen corresponding path program 1 times [2023-11-29 06:47:13,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:47:13,373 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [819158547] [2023-11-29 06:47:13,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:47:13,373 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:47:13,384 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:47:13,384 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1454425471] [2023-11-29 06:47:13,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:47:13,385 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:47:13,385 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:47:13,386 INFO L229 MonitoredProcess]: Starting monitored process 99 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:47:13,386 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (99)] Waiting until timeout for monitored process [2023-11-29 06:47:13,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:47:13,466 INFO L262 TraceCheckSpWp]: Trace formula consists of 389 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-29 06:47:13,468 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:47:13,909 INFO L134 CoverageAnalysis]: Checked inductivity of 459 backedges. 42 proven. 93 refuted. 0 times theorem prover too weak. 324 trivial. 0 not checked. [2023-11-29 06:47:13,909 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:47:14,023 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:47:14,023 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [819158547] [2023-11-29 06:47:14,023 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:47:14,023 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1454425471] [2023-11-29 06:47:14,023 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1454425471] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:47:14,023 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:47:14,024 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2023-11-29 06:47:14,024 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2145402494] [2023-11-29 06:47:14,024 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:47:14,024 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 06:47:14,024 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:47:14,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 06:47:14,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2023-11-29 06:47:14,025 INFO L87 Difference]: Start difference. First operand 2376 states and 3139 transitions. Second operand has 8 states, 7 states have (on average 21.571428571428573) internal successors, (151), 8 states have internal predecessors, (151), 5 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 5 states have call predecessors, (18), 5 states have call successors, (18) [2023-11-29 06:47:15,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:47:15,377 INFO L93 Difference]: Finished difference Result 2410 states and 3149 transitions. [2023-11-29 06:47:15,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 06:47:15,378 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 21.571428571428573) internal successors, (151), 8 states have internal predecessors, (151), 5 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 5 states have call predecessors, (18), 5 states have call successors, (18) Word has length 235 [2023-11-29 06:47:15,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:47:15,380 INFO L225 Difference]: With dead ends: 2410 [2023-11-29 06:47:15,380 INFO L226 Difference]: Without dead ends: 2409 [2023-11-29 06:47:15,381 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 305 GetRequests, 297 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2023-11-29 06:47:15,381 INFO L413 NwaCegarLoop]: 164 mSDtfsCounter, 62 mSDsluCounter, 500 mSDsCounter, 0 mSdLazyCounter, 702 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 664 SdHoareTripleChecker+Invalid, 705 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 702 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-29 06:47:15,381 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 664 Invalid, 705 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 702 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-29 06:47:15,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2409 states. [2023-11-29 06:47:15,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2409 to 2379. [2023-11-29 06:47:15,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2379 states, 2128 states have (on average 1.2913533834586466) internal successors, (2748), 2179 states have internal predecessors, (2748), 197 states have call successors, (197), 2 states have call predecessors, (197), 2 states have return successors, (197), 197 states have call predecessors, (197), 197 states have call successors, (197) [2023-11-29 06:47:15,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2379 states to 2379 states and 3142 transitions. [2023-11-29 06:47:15,775 INFO L78 Accepts]: Start accepts. Automaton has 2379 states and 3142 transitions. Word has length 235 [2023-11-29 06:47:15,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:47:15,776 INFO L495 AbstractCegarLoop]: Abstraction has 2379 states and 3142 transitions. [2023-11-29 06:47:15,776 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 21.571428571428573) internal successors, (151), 8 states have internal predecessors, (151), 5 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 5 states have call predecessors, (18), 5 states have call successors, (18) [2023-11-29 06:47:15,776 INFO L276 IsEmpty]: Start isEmpty. Operand 2379 states and 3142 transitions. [2023-11-29 06:47:15,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2023-11-29 06:47:15,777 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:47:15,777 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:47:15,781 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (99)] Ended with exit code 0 [2023-11-29 06:47:15,977 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 99 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable97 [2023-11-29 06:47:15,978 INFO L420 AbstractCegarLoop]: === Iteration 99 === Targeting ULTIMATE.startErr54ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 06:47:15,978 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:47:15,978 INFO L85 PathProgramCache]: Analyzing trace with hash 589329780, now seen corresponding path program 2 times [2023-11-29 06:47:15,978 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:47:15,978 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [587840554] [2023-11-29 06:47:15,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:47:15,978 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:47:15,988 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:47:15,988 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [593979979] [2023-11-29 06:47:15,988 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 06:47:15,988 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:47:15,988 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:47:15,989 INFO L229 MonitoredProcess]: Starting monitored process 100 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:47:15,990 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (100)] Waiting until timeout for monitored process [2023-11-29 06:47:16,076 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 06:47:16,076 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 06:47:16,077 INFO L262 TraceCheckSpWp]: Trace formula consists of 377 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-29 06:47:16,081 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:47:17,697 INFO L134 CoverageAnalysis]: Checked inductivity of 456 backedges. 3 proven. 144 refuted. 0 times theorem prover too weak. 309 trivial. 0 not checked. [2023-11-29 06:47:17,697 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:47:22,583 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:47:22,583 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [587840554] [2023-11-29 06:47:22,583 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:47:22,583 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [593979979] [2023-11-29 06:47:22,583 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [593979979] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:47:22,583 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:47:22,583 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2023-11-29 06:47:22,583 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [654291028] [2023-11-29 06:47:22,584 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:47:22,584 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-29 06:47:22,584 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:47:22,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-29 06:47:22,585 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=228, Unknown=2, NotChecked=0, Total=306 [2023-11-29 06:47:22,585 INFO L87 Difference]: Start difference. First operand 2379 states and 3142 transitions. Second operand has 14 states, 13 states have (on average 11.846153846153847) internal successors, (154), 13 states have internal predecessors, (154), 6 states have call successors, (18), 1 states have call predecessors, (18), 2 states have return successors, (18), 6 states have call predecessors, (18), 6 states have call successors, (18) [2023-11-29 06:47:24,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:47:24,408 INFO L93 Difference]: Finished difference Result 2719 states and 3553 transitions. [2023-11-29 06:47:24,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-11-29 06:47:24,408 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 11.846153846153847) internal successors, (154), 13 states have internal predecessors, (154), 6 states have call successors, (18), 1 states have call predecessors, (18), 2 states have return successors, (18), 6 states have call predecessors, (18), 6 states have call successors, (18) Word has length 235 [2023-11-29 06:47:24,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:47:24,410 INFO L225 Difference]: With dead ends: 2719 [2023-11-29 06:47:24,410 INFO L226 Difference]: Without dead ends: 2714 [2023-11-29 06:47:24,411 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 257 GetRequests, 234 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 114 ImplicationChecksByTransitivity, 5.0s TimeCoverageRelationStatistics Valid=145, Invalid=453, Unknown=2, NotChecked=0, Total=600 [2023-11-29 06:47:24,411 INFO L413 NwaCegarLoop]: 121 mSDtfsCounter, 311 mSDsluCounter, 500 mSDsCounter, 0 mSdLazyCounter, 1228 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 328 SdHoareTripleChecker+Valid, 621 SdHoareTripleChecker+Invalid, 1242 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 1228 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-11-29 06:47:24,411 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [328 Valid, 621 Invalid, 1242 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 1228 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-11-29 06:47:24,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2714 states. [2023-11-29 06:47:24,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2714 to 2378. [2023-11-29 06:47:24,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2378 states, 2127 states have (on average 1.2910202162670428) internal successors, (2746), 2178 states have internal predecessors, (2746), 197 states have call successors, (197), 2 states have call predecessors, (197), 2 states have return successors, (197), 197 states have call predecessors, (197), 197 states have call successors, (197) [2023-11-29 06:47:24,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2378 states to 2378 states and 3140 transitions. [2023-11-29 06:47:24,787 INFO L78 Accepts]: Start accepts. Automaton has 2378 states and 3140 transitions. Word has length 235 [2023-11-29 06:47:24,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:47:24,787 INFO L495 AbstractCegarLoop]: Abstraction has 2378 states and 3140 transitions. [2023-11-29 06:47:24,787 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 11.846153846153847) internal successors, (154), 13 states have internal predecessors, (154), 6 states have call successors, (18), 1 states have call predecessors, (18), 2 states have return successors, (18), 6 states have call predecessors, (18), 6 states have call successors, (18) [2023-11-29 06:47:24,787 INFO L276 IsEmpty]: Start isEmpty. Operand 2378 states and 3140 transitions. [2023-11-29 06:47:24,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2023-11-29 06:47:24,788 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:47:24,788 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:47:24,793 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (100)] Ended with exit code 0 [2023-11-29 06:47:24,989 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable98,100 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:47:24,989 INFO L420 AbstractCegarLoop]: === Iteration 100 === Targeting ULTIMATE.startErr50ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 06:47:24,989 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:47:24,989 INFO L85 PathProgramCache]: Analyzing trace with hash 1518191295, now seen corresponding path program 1 times [2023-11-29 06:47:24,989 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:47:24,989 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1278373338] [2023-11-29 06:47:24,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:47:24,989 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:47:24,999 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:47:24,999 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1675536839] [2023-11-29 06:47:24,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:47:24,999 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:47:24,999 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:47:25,000 INFO L229 MonitoredProcess]: Starting monitored process 101 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:47:25,001 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (101)] Waiting until timeout for monitored process [2023-11-29 06:47:25,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:47:25,089 INFO L262 TraceCheckSpWp]: Trace formula consists of 390 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 06:47:25,091 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:47:25,233 INFO L134 CoverageAnalysis]: Checked inductivity of 460 backedges. 0 proven. 94 refuted. 0 times theorem prover too weak. 366 trivial. 0 not checked. [2023-11-29 06:47:25,233 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:47:29,322 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:47:29,323 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1278373338] [2023-11-29 06:47:29,323 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:47:29,323 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1675536839] [2023-11-29 06:47:29,323 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1675536839] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:47:29,323 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:47:29,323 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2023-11-29 06:47:29,323 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [379313507] [2023-11-29 06:47:29,323 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:47:29,324 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 06:47:29,324 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:47:29,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 06:47:29,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=51, Unknown=1, NotChecked=0, Total=72 [2023-11-29 06:47:29,324 INFO L87 Difference]: Start difference. First operand 2378 states and 3140 transitions. Second operand has 6 states, 5 states have (on average 23.0) internal successors, (115), 6 states have internal predecessors, (115), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2023-11-29 06:47:30,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:47:30,359 INFO L93 Difference]: Finished difference Result 2401 states and 3144 transitions. [2023-11-29 06:47:30,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 06:47:30,360 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 23.0) internal successors, (115), 6 states have internal predecessors, (115), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 236 [2023-11-29 06:47:30,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:47:30,362 INFO L225 Difference]: With dead ends: 2401 [2023-11-29 06:47:30,362 INFO L226 Difference]: Without dead ends: 2400 [2023-11-29 06:47:30,363 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 246 GetRequests, 238 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=25, Invalid=64, Unknown=1, NotChecked=0, Total=90 [2023-11-29 06:47:30,363 INFO L413 NwaCegarLoop]: 191 mSDtfsCounter, 33 mSDsluCounter, 508 mSDsCounter, 0 mSdLazyCounter, 283 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 699 SdHoareTripleChecker+Invalid, 284 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 283 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-29 06:47:30,363 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 699 Invalid, 284 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 283 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-29 06:47:30,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2400 states. [2023-11-29 06:47:30,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2400 to 2379. [2023-11-29 06:47:30,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2379 states, 2128 states have (on average 1.2899436090225564) internal successors, (2745), 2179 states have internal predecessors, (2745), 197 states have call successors, (197), 2 states have call predecessors, (197), 2 states have return successors, (197), 197 states have call predecessors, (197), 197 states have call successors, (197) [2023-11-29 06:47:30,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2379 states to 2379 states and 3139 transitions. [2023-11-29 06:47:30,745 INFO L78 Accepts]: Start accepts. Automaton has 2379 states and 3139 transitions. Word has length 236 [2023-11-29 06:47:30,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:47:30,745 INFO L495 AbstractCegarLoop]: Abstraction has 2379 states and 3139 transitions. [2023-11-29 06:47:30,745 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 23.0) internal successors, (115), 6 states have internal predecessors, (115), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2023-11-29 06:47:30,745 INFO L276 IsEmpty]: Start isEmpty. Operand 2379 states and 3139 transitions. [2023-11-29 06:47:30,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2023-11-29 06:47:30,747 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:47:30,747 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:47:30,751 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (101)] Ended with exit code 0 [2023-11-29 06:47:30,947 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable99,101 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:47:30,947 INFO L420 AbstractCegarLoop]: === Iteration 101 === Targeting ULTIMATE.startErr51ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 06:47:30,948 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:47:30,948 INFO L85 PathProgramCache]: Analyzing trace with hash -180709931, now seen corresponding path program 1 times [2023-11-29 06:47:30,948 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:47:30,948 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2143862843] [2023-11-29 06:47:30,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:47:30,948 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:47:30,959 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:47:30,960 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [541291360] [2023-11-29 06:47:30,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:47:30,960 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:47:30,960 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:47:30,961 INFO L229 MonitoredProcess]: Starting monitored process 102 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:47:30,961 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (102)] Waiting until timeout for monitored process [2023-11-29 06:47:31,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:47:31,041 INFO L262 TraceCheckSpWp]: Trace formula consists of 391 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-29 06:47:31,043 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:47:31,671 INFO L134 CoverageAnalysis]: Checked inductivity of 461 backedges. 42 proven. 95 refuted. 0 times theorem prover too weak. 324 trivial. 0 not checked. [2023-11-29 06:47:31,671 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:47:31,818 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:47:31,818 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2143862843] [2023-11-29 06:47:31,818 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:47:31,818 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [541291360] [2023-11-29 06:47:31,818 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [541291360] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:47:31,818 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:47:31,818 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2023-11-29 06:47:31,818 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [126802598] [2023-11-29 06:47:31,818 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:47:31,819 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 06:47:31,819 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:47:31,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 06:47:31,820 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2023-11-29 06:47:31,820 INFO L87 Difference]: Start difference. First operand 2379 states and 3139 transitions. Second operand has 9 states, 8 states have (on average 19.125) internal successors, (153), 9 states have internal predecessors, (153), 5 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 5 states have call predecessors, (18), 5 states have call successors, (18) [2023-11-29 06:47:33,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:47:33,238 INFO L93 Difference]: Finished difference Result 2386 states and 3139 transitions. [2023-11-29 06:47:33,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 06:47:33,239 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 19.125) internal successors, (153), 9 states have internal predecessors, (153), 5 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 5 states have call predecessors, (18), 5 states have call successors, (18) Word has length 237 [2023-11-29 06:47:33,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:47:33,241 INFO L225 Difference]: With dead ends: 2386 [2023-11-29 06:47:33,241 INFO L226 Difference]: Without dead ends: 2385 [2023-11-29 06:47:33,242 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 313 GetRequests, 299 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=68, Invalid=172, Unknown=0, NotChecked=0, Total=240 [2023-11-29 06:47:33,242 INFO L413 NwaCegarLoop]: 138 mSDtfsCounter, 112 mSDsluCounter, 448 mSDsCounter, 0 mSdLazyCounter, 668 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 586 SdHoareTripleChecker+Invalid, 685 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 668 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-11-29 06:47:33,242 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 586 Invalid, 685 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 668 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-11-29 06:47:33,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2385 states. [2023-11-29 06:47:33,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2385 to 2379. [2023-11-29 06:47:33,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2379 states, 2128 states have (on average 1.2890037593984962) internal successors, (2743), 2179 states have internal predecessors, (2743), 197 states have call successors, (197), 2 states have call predecessors, (197), 2 states have return successors, (197), 197 states have call predecessors, (197), 197 states have call successors, (197) [2023-11-29 06:47:33,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2379 states to 2379 states and 3137 transitions. [2023-11-29 06:47:33,623 INFO L78 Accepts]: Start accepts. Automaton has 2379 states and 3137 transitions. Word has length 237 [2023-11-29 06:47:33,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:47:33,623 INFO L495 AbstractCegarLoop]: Abstraction has 2379 states and 3137 transitions. [2023-11-29 06:47:33,623 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 19.125) internal successors, (153), 9 states have internal predecessors, (153), 5 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 5 states have call predecessors, (18), 5 states have call successors, (18) [2023-11-29 06:47:33,623 INFO L276 IsEmpty]: Start isEmpty. Operand 2379 states and 3137 transitions. [2023-11-29 06:47:33,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2023-11-29 06:47:33,624 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:47:33,624 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:47:33,629 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (102)] Forceful destruction successful, exit code 0 [2023-11-29 06:47:33,825 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable100,102 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:47:33,825 INFO L420 AbstractCegarLoop]: === Iteration 102 === Targeting ULTIMATE.startErr52ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 06:47:33,825 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:47:33,825 INFO L85 PathProgramCache]: Analyzing trace with hash -1935475711, now seen corresponding path program 1 times [2023-11-29 06:47:33,825 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:47:33,825 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1058939399] [2023-11-29 06:47:33,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:47:33,825 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:47:33,835 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:47:33,836 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [756927139] [2023-11-29 06:47:33,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:47:33,836 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:47:33,836 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:47:33,837 INFO L229 MonitoredProcess]: Starting monitored process 103 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:47:33,838 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (103)] Waiting until timeout for monitored process [2023-11-29 06:47:33,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:47:33,919 INFO L262 TraceCheckSpWp]: Trace formula consists of 397 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-29 06:47:33,922 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:47:34,034 INFO L134 CoverageAnalysis]: Checked inductivity of 465 backedges. 88 proven. 53 refuted. 0 times theorem prover too weak. 324 trivial. 0 not checked. [2023-11-29 06:47:34,034 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:47:34,166 INFO L134 CoverageAnalysis]: Checked inductivity of 465 backedges. 88 proven. 53 refuted. 0 times theorem prover too weak. 324 trivial. 0 not checked. [2023-11-29 06:47:34,166 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:47:34,166 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1058939399] [2023-11-29 06:47:34,166 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:47:34,166 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [756927139] [2023-11-29 06:47:34,166 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [756927139] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 06:47:34,166 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 06:47:34,166 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 7 [2023-11-29 06:47:34,166 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1376322817] [2023-11-29 06:47:34,167 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 06:47:34,167 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 06:47:34,167 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:47:34,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 06:47:34,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-29 06:47:34,168 INFO L87 Difference]: Start difference. First operand 2379 states and 3137 transitions. Second operand has 7 states, 7 states have (on average 22.285714285714285) internal successors, (156), 7 states have internal predecessors, (156), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2023-11-29 06:47:35,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:47:35,348 INFO L93 Difference]: Finished difference Result 3310 states and 4401 transitions. [2023-11-29 06:47:35,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-29 06:47:35,348 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 22.285714285714285) internal successors, (156), 7 states have internal predecessors, (156), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 240 [2023-11-29 06:47:35,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:47:35,352 INFO L225 Difference]: With dead ends: 3310 [2023-11-29 06:47:35,352 INFO L226 Difference]: Without dead ends: 3281 [2023-11-29 06:47:35,352 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 492 GetRequests, 474 SyntacticMatches, 4 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=170, Unknown=0, NotChecked=0, Total=240 [2023-11-29 06:47:35,353 INFO L413 NwaCegarLoop]: 262 mSDtfsCounter, 665 mSDsluCounter, 927 mSDsCounter, 0 mSdLazyCounter, 406 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 670 SdHoareTripleChecker+Valid, 1189 SdHoareTripleChecker+Invalid, 431 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 406 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-29 06:47:35,353 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [670 Valid, 1189 Invalid, 431 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 406 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-29 06:47:35,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3281 states. [2023-11-29 06:47:35,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3281 to 2412. [2023-11-29 06:47:35,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2412 states, 2161 states have (on average 1.2919944470152707) internal successors, (2792), 2212 states have internal predecessors, (2792), 197 states have call successors, (197), 2 states have call predecessors, (197), 2 states have return successors, (197), 197 states have call predecessors, (197), 197 states have call successors, (197) [2023-11-29 06:47:35,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2412 states to 2412 states and 3186 transitions. [2023-11-29 06:47:35,745 INFO L78 Accepts]: Start accepts. Automaton has 2412 states and 3186 transitions. Word has length 240 [2023-11-29 06:47:35,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:47:35,745 INFO L495 AbstractCegarLoop]: Abstraction has 2412 states and 3186 transitions. [2023-11-29 06:47:35,746 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 22.285714285714285) internal successors, (156), 7 states have internal predecessors, (156), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2023-11-29 06:47:35,746 INFO L276 IsEmpty]: Start isEmpty. Operand 2412 states and 3186 transitions. [2023-11-29 06:47:35,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2023-11-29 06:47:35,747 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:47:35,747 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:47:35,751 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (103)] Forceful destruction successful, exit code 0 [2023-11-29 06:47:35,947 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable101,103 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:47:35,947 INFO L420 AbstractCegarLoop]: === Iteration 103 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 06:47:35,947 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:47:35,947 INFO L85 PathProgramCache]: Analyzing trace with hash 2075788310, now seen corresponding path program 2 times [2023-11-29 06:47:35,947 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:47:35,947 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1420352881] [2023-11-29 06:47:35,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:47:35,948 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:47:35,958 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:47:35,958 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [401504850] [2023-11-29 06:47:35,959 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 06:47:35,959 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:47:35,959 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:47:35,960 INFO L229 MonitoredProcess]: Starting monitored process 104 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:47:35,962 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (104)] Waiting until timeout for monitored process [2023-11-29 06:47:36,059 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 06:47:36,059 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 06:47:36,061 INFO L262 TraceCheckSpWp]: Trace formula consists of 414 conjuncts, 19 conjunts are in the unsatisfiable core [2023-11-29 06:47:36,063 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:47:37,334 INFO L134 CoverageAnalysis]: Checked inductivity of 534 backedges. 3 proven. 174 refuted. 0 times theorem prover too weak. 357 trivial. 0 not checked. [2023-11-29 06:47:37,334 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:47:37,439 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:47:37,440 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1420352881] [2023-11-29 06:47:37,440 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:47:37,440 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [401504850] [2023-11-29 06:47:37,440 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [401504850] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:47:37,440 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:47:37,440 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2023-11-29 06:47:37,440 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1589688600] [2023-11-29 06:47:37,440 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:47:37,440 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-11-29 06:47:37,441 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:47:37,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-11-29 06:47:37,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=244, Unknown=0, NotChecked=0, Total=306 [2023-11-29 06:47:37,441 INFO L87 Difference]: Start difference. First operand 2412 states and 3186 transitions. Second operand has 15 states, 14 states have (on average 11.714285714285714) internal successors, (164), 14 states have internal predecessors, (164), 7 states have call successors, (19), 1 states have call predecessors, (19), 2 states have return successors, (19), 7 states have call predecessors, (19), 7 states have call successors, (19) [2023-11-29 06:47:40,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:47:40,467 INFO L93 Difference]: Finished difference Result 2784 states and 3734 transitions. [2023-11-29 06:47:40,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-11-29 06:47:40,467 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 11.714285714285714) internal successors, (164), 14 states have internal predecessors, (164), 7 states have call successors, (19), 1 states have call predecessors, (19), 2 states have return successors, (19), 7 states have call predecessors, (19), 7 states have call successors, (19) Word has length 250 [2023-11-29 06:47:40,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:47:40,470 INFO L225 Difference]: With dead ends: 2784 [2023-11-29 06:47:40,470 INFO L226 Difference]: Without dead ends: 2783 [2023-11-29 06:47:40,471 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 279 GetRequests, 257 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=103, Invalid=449, Unknown=0, NotChecked=0, Total=552 [2023-11-29 06:47:40,471 INFO L413 NwaCegarLoop]: 158 mSDtfsCounter, 471 mSDsluCounter, 904 mSDsCounter, 0 mSdLazyCounter, 1968 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 489 SdHoareTripleChecker+Valid, 1062 SdHoareTripleChecker+Invalid, 1984 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 1968 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2023-11-29 06:47:40,471 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [489 Valid, 1062 Invalid, 1984 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 1968 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2023-11-29 06:47:40,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2783 states. [2023-11-29 06:47:40,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2783 to 2419. [2023-11-29 06:47:40,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2419 states, 2167 states have (on average 1.291185971389017) internal successors, (2798), 2218 states have internal predecessors, (2798), 198 states have call successors, (198), 2 states have call predecessors, (198), 2 states have return successors, (198), 198 states have call predecessors, (198), 198 states have call successors, (198) [2023-11-29 06:47:40,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2419 states to 2419 states and 3194 transitions. [2023-11-29 06:47:40,863 INFO L78 Accepts]: Start accepts. Automaton has 2419 states and 3194 transitions. Word has length 250 [2023-11-29 06:47:40,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:47:40,863 INFO L495 AbstractCegarLoop]: Abstraction has 2419 states and 3194 transitions. [2023-11-29 06:47:40,863 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 11.714285714285714) internal successors, (164), 14 states have internal predecessors, (164), 7 states have call successors, (19), 1 states have call predecessors, (19), 2 states have return successors, (19), 7 states have call predecessors, (19), 7 states have call successors, (19) [2023-11-29 06:47:40,863 INFO L276 IsEmpty]: Start isEmpty. Operand 2419 states and 3194 transitions. [2023-11-29 06:47:40,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 252 [2023-11-29 06:47:40,864 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:47:40,864 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:47:40,869 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (104)] Ended with exit code 0 [2023-11-29 06:47:41,065 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 104 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable102 [2023-11-29 06:47:41,065 INFO L420 AbstractCegarLoop]: === Iteration 104 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 06:47:41,065 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:47:41,065 INFO L85 PathProgramCache]: Analyzing trace with hash -75071746, now seen corresponding path program 2 times [2023-11-29 06:47:41,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:47:41,065 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [866112583] [2023-11-29 06:47:41,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:47:41,066 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:47:41,076 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:47:41,077 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1912015566] [2023-11-29 06:47:41,077 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 06:47:41,077 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:47:41,077 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:47:41,078 INFO L229 MonitoredProcess]: Starting monitored process 105 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:47:41,078 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (105)] Waiting until timeout for monitored process [2023-11-29 06:47:41,163 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 06:47:41,163 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 06:47:41,165 INFO L262 TraceCheckSpWp]: Trace formula consists of 415 conjuncts, 19 conjunts are in the unsatisfiable core [2023-11-29 06:47:41,167 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:47:42,556 INFO L134 CoverageAnalysis]: Checked inductivity of 537 backedges. 3 proven. 177 refuted. 0 times theorem prover too weak. 357 trivial. 0 not checked. [2023-11-29 06:47:42,556 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:47:42,829 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:47:42,829 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [866112583] [2023-11-29 06:47:42,829 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:47:42,829 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1912015566] [2023-11-29 06:47:42,829 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1912015566] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:47:42,829 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:47:42,829 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2023-11-29 06:47:42,829 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [336997394] [2023-11-29 06:47:42,829 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:47:42,829 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-11-29 06:47:42,829 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:47:42,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-11-29 06:47:42,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=244, Unknown=0, NotChecked=0, Total=306 [2023-11-29 06:47:42,830 INFO L87 Difference]: Start difference. First operand 2419 states and 3194 transitions. Second operand has 15 states, 14 states have (on average 11.785714285714286) internal successors, (165), 14 states have internal predecessors, (165), 7 states have call successors, (19), 1 states have call predecessors, (19), 2 states have return successors, (19), 7 states have call predecessors, (19), 7 states have call successors, (19) [2023-11-29 06:47:45,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:47:45,857 INFO L93 Difference]: Finished difference Result 2783 states and 3733 transitions. [2023-11-29 06:47:45,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-11-29 06:47:45,858 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 11.785714285714286) internal successors, (165), 14 states have internal predecessors, (165), 7 states have call successors, (19), 1 states have call predecessors, (19), 2 states have return successors, (19), 7 states have call predecessors, (19), 7 states have call successors, (19) Word has length 251 [2023-11-29 06:47:45,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:47:45,861 INFO L225 Difference]: With dead ends: 2783 [2023-11-29 06:47:45,861 INFO L226 Difference]: Without dead ends: 2782 [2023-11-29 06:47:45,862 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 281 GetRequests, 259 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=103, Invalid=449, Unknown=0, NotChecked=0, Total=552 [2023-11-29 06:47:45,862 INFO L413 NwaCegarLoop]: 158 mSDtfsCounter, 414 mSDsluCounter, 1048 mSDsCounter, 0 mSdLazyCounter, 2165 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 432 SdHoareTripleChecker+Valid, 1206 SdHoareTripleChecker+Invalid, 2177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 2165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2023-11-29 06:47:45,862 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [432 Valid, 1206 Invalid, 2177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 2165 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2023-11-29 06:47:45,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2782 states. [2023-11-29 06:47:46,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2782 to 2420. [2023-11-29 06:47:46,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2420 states, 2168 states have (on average 1.2910516605166051) internal successors, (2799), 2219 states have internal predecessors, (2799), 198 states have call successors, (198), 2 states have call predecessors, (198), 2 states have return successors, (198), 198 states have call predecessors, (198), 198 states have call successors, (198) [2023-11-29 06:47:46,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2420 states to 2420 states and 3195 transitions. [2023-11-29 06:47:46,257 INFO L78 Accepts]: Start accepts. Automaton has 2420 states and 3195 transitions. Word has length 251 [2023-11-29 06:47:46,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:47:46,258 INFO L495 AbstractCegarLoop]: Abstraction has 2420 states and 3195 transitions. [2023-11-29 06:47:46,258 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 11.785714285714286) internal successors, (165), 14 states have internal predecessors, (165), 7 states have call successors, (19), 1 states have call predecessors, (19), 2 states have return successors, (19), 7 states have call predecessors, (19), 7 states have call successors, (19) [2023-11-29 06:47:46,258 INFO L276 IsEmpty]: Start isEmpty. Operand 2420 states and 3195 transitions. [2023-11-29 06:47:46,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 253 [2023-11-29 06:47:46,259 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:47:46,259 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:47:46,264 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (105)] Forceful destruction successful, exit code 0 [2023-11-29 06:47:46,459 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 105 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable103 [2023-11-29 06:47:46,459 INFO L420 AbstractCegarLoop]: === Iteration 105 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 06:47:46,460 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:47:46,460 INFO L85 PathProgramCache]: Analyzing trace with hash 1967743256, now seen corresponding path program 1 times [2023-11-29 06:47:46,460 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:47:46,460 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2092825173] [2023-11-29 06:47:46,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:47:46,460 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:47:46,470 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:47:46,470 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1304267539] [2023-11-29 06:47:46,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:47:46,470 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:47:46,470 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:47:46,471 INFO L229 MonitoredProcess]: Starting monitored process 106 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:47:46,472 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (106)] Waiting until timeout for monitored process [2023-11-29 06:47:46,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:47:46,556 INFO L262 TraceCheckSpWp]: Trace formula consists of 416 conjuncts, 23 conjunts are in the unsatisfiable core [2023-11-29 06:47:46,559 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:47:47,641 INFO L134 CoverageAnalysis]: Checked inductivity of 540 backedges. 3 proven. 180 refuted. 0 times theorem prover too weak. 357 trivial. 0 not checked. [2023-11-29 06:47:47,642 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:47:47,750 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:47:47,750 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2092825173] [2023-11-29 06:47:47,750 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:47:47,750 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1304267539] [2023-11-29 06:47:47,750 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1304267539] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:47:47,750 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:47:47,750 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2023-11-29 06:47:47,750 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1911637658] [2023-11-29 06:47:47,750 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:47:47,751 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-29 06:47:47,751 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:47:47,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-29 06:47:47,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=234, Unknown=0, NotChecked=0, Total=272 [2023-11-29 06:47:47,751 INFO L87 Difference]: Start difference. First operand 2420 states and 3195 transitions. Second operand has 14 states, 13 states have (on average 12.76923076923077) internal successors, (166), 13 states have internal predecessors, (166), 7 states have call successors, (19), 1 states have call predecessors, (19), 2 states have return successors, (19), 7 states have call predecessors, (19), 7 states have call successors, (19) [2023-11-29 06:47:50,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:47:50,804 INFO L93 Difference]: Finished difference Result 2770 states and 3717 transitions. [2023-11-29 06:47:50,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-29 06:47:50,805 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 12.76923076923077) internal successors, (166), 13 states have internal predecessors, (166), 7 states have call successors, (19), 1 states have call predecessors, (19), 2 states have return successors, (19), 7 states have call predecessors, (19), 7 states have call successors, (19) Word has length 252 [2023-11-29 06:47:50,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:47:50,808 INFO L225 Difference]: With dead ends: 2770 [2023-11-29 06:47:50,808 INFO L226 Difference]: Without dead ends: 2769 [2023-11-29 06:47:50,809 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 288 GetRequests, 262 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=106, Invalid=650, Unknown=0, NotChecked=0, Total=756 [2023-11-29 06:47:50,809 INFO L413 NwaCegarLoop]: 120 mSDtfsCounter, 590 mSDsluCounter, 788 mSDsCounter, 0 mSdLazyCounter, 2471 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 595 SdHoareTripleChecker+Valid, 908 SdHoareTripleChecker+Invalid, 2511 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 2471 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2023-11-29 06:47:50,809 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [595 Valid, 908 Invalid, 2511 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 2471 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2023-11-29 06:47:50,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2769 states. [2023-11-29 06:47:51,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2769 to 2421. [2023-11-29 06:47:51,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2421 states, 2169 states have (on average 1.2909174734900877) internal successors, (2800), 2220 states have internal predecessors, (2800), 198 states have call successors, (198), 2 states have call predecessors, (198), 2 states have return successors, (198), 198 states have call predecessors, (198), 198 states have call successors, (198) [2023-11-29 06:47:51,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2421 states to 2421 states and 3196 transitions. [2023-11-29 06:47:51,210 INFO L78 Accepts]: Start accepts. Automaton has 2421 states and 3196 transitions. Word has length 252 [2023-11-29 06:47:51,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:47:51,210 INFO L495 AbstractCegarLoop]: Abstraction has 2421 states and 3196 transitions. [2023-11-29 06:47:51,210 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 12.76923076923077) internal successors, (166), 13 states have internal predecessors, (166), 7 states have call successors, (19), 1 states have call predecessors, (19), 2 states have return successors, (19), 7 states have call predecessors, (19), 7 states have call successors, (19) [2023-11-29 06:47:51,210 INFO L276 IsEmpty]: Start isEmpty. Operand 2421 states and 3196 transitions. [2023-11-29 06:47:51,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254 [2023-11-29 06:47:51,211 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:47:51,211 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:47:51,216 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (106)] Ended with exit code 0 [2023-11-29 06:47:51,412 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable104,106 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:47:51,412 INFO L420 AbstractCegarLoop]: === Iteration 106 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 06:47:51,412 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:47:51,412 INFO L85 PathProgramCache]: Analyzing trace with hash 870498880, now seen corresponding path program 1 times [2023-11-29 06:47:51,412 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:47:51,412 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1302550893] [2023-11-29 06:47:51,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:47:51,412 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:47:51,422 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:47:51,422 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2091473953] [2023-11-29 06:47:51,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:47:51,422 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:47:51,423 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:47:51,423 INFO L229 MonitoredProcess]: Starting monitored process 107 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:47:51,424 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (107)] Waiting until timeout for monitored process [2023-11-29 06:47:51,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:47:51,503 INFO L262 TraceCheckSpWp]: Trace formula consists of 417 conjuncts, 23 conjunts are in the unsatisfiable core [2023-11-29 06:47:51,505 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:47:52,634 INFO L134 CoverageAnalysis]: Checked inductivity of 543 backedges. 3 proven. 183 refuted. 0 times theorem prover too weak. 357 trivial. 0 not checked. [2023-11-29 06:47:52,635 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:47:52,879 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:47:52,879 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1302550893] [2023-11-29 06:47:52,879 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:47:52,879 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2091473953] [2023-11-29 06:47:52,880 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2091473953] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:47:52,880 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:47:52,880 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2023-11-29 06:47:52,880 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1392969964] [2023-11-29 06:47:52,880 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:47:52,880 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-29 06:47:52,880 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:47:52,881 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-29 06:47:52,881 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2023-11-29 06:47:52,881 INFO L87 Difference]: Start difference. First operand 2421 states and 3196 transitions. Second operand has 14 states, 13 states have (on average 12.846153846153847) internal successors, (167), 13 states have internal predecessors, (167), 7 states have call successors, (19), 1 states have call predecessors, (19), 2 states have return successors, (19), 7 states have call predecessors, (19), 7 states have call successors, (19) [2023-11-29 06:47:57,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:47:57,406 INFO L93 Difference]: Finished difference Result 2769 states and 3716 transitions. [2023-11-29 06:47:57,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-29 06:47:57,407 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 12.846153846153847) internal successors, (167), 13 states have internal predecessors, (167), 7 states have call successors, (19), 1 states have call predecessors, (19), 2 states have return successors, (19), 7 states have call predecessors, (19), 7 states have call successors, (19) Word has length 253 [2023-11-29 06:47:57,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:47:57,410 INFO L225 Difference]: With dead ends: 2769 [2023-11-29 06:47:57,410 INFO L226 Difference]: Without dead ends: 2768 [2023-11-29 06:47:57,411 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 290 GetRequests, 264 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=111, Invalid=645, Unknown=0, NotChecked=0, Total=756 [2023-11-29 06:47:57,411 INFO L413 NwaCegarLoop]: 118 mSDtfsCounter, 617 mSDsluCounter, 842 mSDsCounter, 0 mSdLazyCounter, 2627 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 622 SdHoareTripleChecker+Valid, 960 SdHoareTripleChecker+Invalid, 2669 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 2627 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2023-11-29 06:47:57,411 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [622 Valid, 960 Invalid, 2669 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 2627 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2023-11-29 06:47:57,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2768 states. [2023-11-29 06:47:57,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2768 to 2422. [2023-11-29 06:47:57,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2422 states, 2170 states have (on average 1.290783410138249) internal successors, (2801), 2221 states have internal predecessors, (2801), 198 states have call successors, (198), 2 states have call predecessors, (198), 2 states have return successors, (198), 198 states have call predecessors, (198), 198 states have call successors, (198) [2023-11-29 06:47:57,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2422 states to 2422 states and 3197 transitions. [2023-11-29 06:47:57,819 INFO L78 Accepts]: Start accepts. Automaton has 2422 states and 3197 transitions. Word has length 253 [2023-11-29 06:47:57,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:47:57,819 INFO L495 AbstractCegarLoop]: Abstraction has 2422 states and 3197 transitions. [2023-11-29 06:47:57,819 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 12.846153846153847) internal successors, (167), 13 states have internal predecessors, (167), 7 states have call successors, (19), 1 states have call predecessors, (19), 2 states have return successors, (19), 7 states have call predecessors, (19), 7 states have call successors, (19) [2023-11-29 06:47:57,819 INFO L276 IsEmpty]: Start isEmpty. Operand 2422 states and 3197 transitions. [2023-11-29 06:47:57,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2023-11-29 06:47:57,820 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:47:57,820 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:47:57,825 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (107)] Ended with exit code 0 [2023-11-29 06:47:58,021 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable105,107 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:47:58,021 INFO L420 AbstractCegarLoop]: === Iteration 107 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 06:47:58,021 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:47:58,021 INFO L85 PathProgramCache]: Analyzing trace with hash 1215661594, now seen corresponding path program 2 times [2023-11-29 06:47:58,021 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:47:58,021 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2101694402] [2023-11-29 06:47:58,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:47:58,022 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:47:58,035 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:47:58,035 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1899208625] [2023-11-29 06:47:58,035 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 06:47:58,035 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:47:58,036 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:47:58,036 INFO L229 MonitoredProcess]: Starting monitored process 108 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:47:58,038 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (108)] Waiting until timeout for monitored process [2023-11-29 06:47:58,123 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 06:47:58,124 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 06:47:58,126 INFO L262 TraceCheckSpWp]: Trace formula consists of 418 conjuncts, 23 conjunts are in the unsatisfiable core [2023-11-29 06:47:58,128 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:48:04,434 INFO L134 CoverageAnalysis]: Checked inductivity of 546 backedges. 30 proven. 180 refuted. 0 times theorem prover too weak. 336 trivial. 0 not checked. [2023-11-29 06:48:04,434 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:48:06,342 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:48:06,342 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2101694402] [2023-11-29 06:48:06,342 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:48:06,342 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1899208625] [2023-11-29 06:48:06,343 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1899208625] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:48:06,343 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:48:06,343 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2023-11-29 06:48:06,343 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [574389781] [2023-11-29 06:48:06,343 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:48:06,343 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-29 06:48:06,343 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:48:06,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-29 06:48:06,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=295, Unknown=0, NotChecked=0, Total=342 [2023-11-29 06:48:06,344 INFO L87 Difference]: Start difference. First operand 2422 states and 3197 transitions. Second operand has 14 states, 13 states have (on average 12.923076923076923) internal successors, (168), 14 states have internal predecessors, (168), 7 states have call successors, (19), 1 states have call predecessors, (19), 2 states have return successors, (19), 7 states have call predecessors, (19), 7 states have call successors, (19) [2023-11-29 06:48:20,917 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.51s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 06:48:35,492 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.63s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 06:48:40,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:48:40,736 INFO L93 Difference]: Finished difference Result 2768 states and 3715 transitions. [2023-11-29 06:48:40,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-29 06:48:40,736 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 12.923076923076923) internal successors, (168), 14 states have internal predecessors, (168), 7 states have call successors, (19), 1 states have call predecessors, (19), 2 states have return successors, (19), 7 states have call predecessors, (19), 7 states have call successors, (19) Word has length 254 [2023-11-29 06:48:40,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:48:40,739 INFO L225 Difference]: With dead ends: 2768 [2023-11-29 06:48:40,739 INFO L226 Difference]: Without dead ends: 2767 [2023-11-29 06:48:40,740 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 315 GetRequests, 289 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 5.3s TimeCoverageRelationStatistics Valid=104, Invalid=652, Unknown=0, NotChecked=0, Total=756 [2023-11-29 06:48:40,740 INFO L413 NwaCegarLoop]: 131 mSDtfsCounter, 292 mSDsluCounter, 979 mSDsCounter, 0 mSdLazyCounter, 2727 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 32.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 303 SdHoareTripleChecker+Valid, 1110 SdHoareTripleChecker+Invalid, 2739 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 2727 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 32.3s IncrementalHoareTripleChecker+Time [2023-11-29 06:48:40,740 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [303 Valid, 1110 Invalid, 2739 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 2727 Invalid, 0 Unknown, 0 Unchecked, 32.3s Time] [2023-11-29 06:48:40,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2767 states. [2023-11-29 06:48:41,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2767 to 2734. [2023-11-29 06:48:41,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2734 states, 2455 states have (on average 1.3262729124236252) internal successors, (3256), 2506 states have internal predecessors, (3256), 225 states have call successors, (225), 2 states have call predecessors, (225), 2 states have return successors, (225), 225 states have call predecessors, (225), 225 states have call successors, (225) [2023-11-29 06:48:41,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2734 states to 2734 states and 3706 transitions. [2023-11-29 06:48:41,187 INFO L78 Accepts]: Start accepts. Automaton has 2734 states and 3706 transitions. Word has length 254 [2023-11-29 06:48:41,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:48:41,187 INFO L495 AbstractCegarLoop]: Abstraction has 2734 states and 3706 transitions. [2023-11-29 06:48:41,187 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 12.923076923076923) internal successors, (168), 14 states have internal predecessors, (168), 7 states have call successors, (19), 1 states have call predecessors, (19), 2 states have return successors, (19), 7 states have call predecessors, (19), 7 states have call successors, (19) [2023-11-29 06:48:41,187 INFO L276 IsEmpty]: Start isEmpty. Operand 2734 states and 3706 transitions. [2023-11-29 06:48:41,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 256 [2023-11-29 06:48:41,188 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:48:41,188 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:48:41,193 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (108)] Ended with exit code 0 [2023-11-29 06:48:41,389 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable106,108 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:48:41,389 INFO L420 AbstractCegarLoop]: === Iteration 108 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 06:48:41,389 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:48:41,389 INFO L85 PathProgramCache]: Analyzing trace with hash -969196158, now seen corresponding path program 1 times [2023-11-29 06:48:41,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:48:41,389 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1849715716] [2023-11-29 06:48:41,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:48:41,389 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:48:41,404 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:48:41,404 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [228934672] [2023-11-29 06:48:41,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:48:41,404 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:48:41,404 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:48:41,405 INFO L229 MonitoredProcess]: Starting monitored process 109 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:48:41,406 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (109)] Waiting until timeout for monitored process [2023-11-29 06:48:41,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:48:41,489 INFO L262 TraceCheckSpWp]: Trace formula consists of 419 conjuncts, 40 conjunts are in the unsatisfiable core [2023-11-29 06:48:41,491 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:48:45,829 INFO L134 CoverageAnalysis]: Checked inductivity of 549 backedges. 9 proven. 177 refuted. 0 times theorem prover too weak. 363 trivial. 0 not checked. [2023-11-29 06:48:45,829 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:48:46,442 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:48:46,442 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1849715716] [2023-11-29 06:48:46,442 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:48:46,442 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [228934672] [2023-11-29 06:48:46,443 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [228934672] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:48:46,443 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:48:46,443 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2023-11-29 06:48:46,443 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [728229297] [2023-11-29 06:48:46,443 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:48:46,443 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-11-29 06:48:46,443 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:48:46,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-11-29 06:48:46,444 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=522, Unknown=0, NotChecked=0, Total=600 [2023-11-29 06:48:46,444 INFO L87 Difference]: Start difference. First operand 2734 states and 3706 transitions. Second operand has 17 states, 16 states have (on average 8.4375) internal successors, (135), 16 states have internal predecessors, (135), 7 states have call successors, (15), 1 states have call predecessors, (15), 3 states have return successors, (15), 7 states have call predecessors, (15), 7 states have call successors, (15) [2023-11-29 06:48:52,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:48:52,498 INFO L93 Difference]: Finished difference Result 3031 states and 4113 transitions. [2023-11-29 06:48:52,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-11-29 06:48:52,499 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 8.4375) internal successors, (135), 16 states have internal predecessors, (135), 7 states have call successors, (15), 1 states have call predecessors, (15), 3 states have return successors, (15), 7 states have call predecessors, (15), 7 states have call successors, (15) Word has length 255 [2023-11-29 06:48:52,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:48:52,502 INFO L225 Difference]: With dead ends: 3031 [2023-11-29 06:48:52,502 INFO L226 Difference]: Without dead ends: 3022 [2023-11-29 06:48:52,502 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 446 GetRequests, 416 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 171 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=132, Invalid=860, Unknown=0, NotChecked=0, Total=992 [2023-11-29 06:48:52,502 INFO L413 NwaCegarLoop]: 89 mSDtfsCounter, 386 mSDsluCounter, 628 mSDsCounter, 0 mSdLazyCounter, 2929 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 403 SdHoareTripleChecker+Valid, 717 SdHoareTripleChecker+Invalid, 2941 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 2929 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2023-11-29 06:48:52,503 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [403 Valid, 717 Invalid, 2941 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 2929 Invalid, 0 Unknown, 0 Unchecked, 5.2s Time] [2023-11-29 06:48:52,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3022 states. [2023-11-29 06:48:52,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3022 to 2980. [2023-11-29 06:48:52,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2980 states, 2680 states have (on average 1.3406716417910447) internal successors, (3593), 2731 states have internal predecessors, (3593), 246 states have call successors, (246), 2 states have call predecessors, (246), 2 states have return successors, (246), 246 states have call predecessors, (246), 246 states have call successors, (246) [2023-11-29 06:48:52,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2980 states to 2980 states and 4085 transitions. [2023-11-29 06:48:52,992 INFO L78 Accepts]: Start accepts. Automaton has 2980 states and 4085 transitions. Word has length 255 [2023-11-29 06:48:52,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:48:52,992 INFO L495 AbstractCegarLoop]: Abstraction has 2980 states and 4085 transitions. [2023-11-29 06:48:52,992 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 8.4375) internal successors, (135), 16 states have internal predecessors, (135), 7 states have call successors, (15), 1 states have call predecessors, (15), 3 states have return successors, (15), 7 states have call predecessors, (15), 7 states have call successors, (15) [2023-11-29 06:48:52,992 INFO L276 IsEmpty]: Start isEmpty. Operand 2980 states and 4085 transitions. [2023-11-29 06:48:52,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 262 [2023-11-29 06:48:52,993 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:48:52,994 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:48:52,998 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (109)] Ended with exit code 0 [2023-11-29 06:48:53,194 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable107,109 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:48:53,194 INFO L420 AbstractCegarLoop]: === Iteration 109 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 06:48:53,194 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:48:53,194 INFO L85 PathProgramCache]: Analyzing trace with hash 1524259536, now seen corresponding path program 1 times [2023-11-29 06:48:53,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:48:53,194 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1504513621] [2023-11-29 06:48:53,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:48:53,195 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:48:53,206 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:48:53,206 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1397460626] [2023-11-29 06:48:53,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:48:53,207 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:48:53,207 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:48:53,207 INFO L229 MonitoredProcess]: Starting monitored process 110 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:48:53,208 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (110)] Waiting until timeout for monitored process [2023-11-29 06:48:53,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:48:53,299 INFO L262 TraceCheckSpWp]: Trace formula consists of 429 conjuncts, 29 conjunts are in the unsatisfiable core [2023-11-29 06:48:53,301 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:48:54,812 INFO L134 CoverageAnalysis]: Checked inductivity of 607 backedges. 3 proven. 195 refuted. 0 times theorem prover too weak. 409 trivial. 0 not checked. [2023-11-29 06:48:54,812 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:48:55,008 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:48:55,009 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1504513621] [2023-11-29 06:48:55,009 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:48:55,009 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1397460626] [2023-11-29 06:48:55,009 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1397460626] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:48:55,009 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:48:55,009 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2023-11-29 06:48:55,009 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [129973066] [2023-11-29 06:48:55,009 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:48:55,009 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-11-29 06:48:55,010 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:48:55,010 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-11-29 06:48:55,010 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=329, Unknown=0, NotChecked=0, Total=380 [2023-11-29 06:48:55,010 INFO L87 Difference]: Start difference. First operand 2980 states and 4085 transitions. Second operand has 16 states, 15 states have (on average 11.333333333333334) internal successors, (170), 15 states have internal predecessors, (170), 7 states have call successors, (20), 1 states have call predecessors, (20), 2 states have return successors, (20), 7 states have call predecessors, (20), 7 states have call successors, (20) [2023-11-29 06:48:58,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:48:58,838 INFO L93 Difference]: Finished difference Result 3024 states and 4102 transitions. [2023-11-29 06:48:58,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-11-29 06:48:58,839 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 11.333333333333334) internal successors, (170), 15 states have internal predecessors, (170), 7 states have call successors, (20), 1 states have call predecessors, (20), 2 states have return successors, (20), 7 states have call predecessors, (20), 7 states have call successors, (20) Word has length 261 [2023-11-29 06:48:58,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:48:58,842 INFO L225 Difference]: With dead ends: 3024 [2023-11-29 06:48:58,842 INFO L226 Difference]: Without dead ends: 3022 [2023-11-29 06:48:58,842 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 307 GetRequests, 277 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 94 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=130, Invalid=862, Unknown=0, NotChecked=0, Total=992 [2023-11-29 06:48:58,842 INFO L413 NwaCegarLoop]: 108 mSDtfsCounter, 617 mSDsluCounter, 787 mSDsCounter, 0 mSdLazyCounter, 3189 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 622 SdHoareTripleChecker+Valid, 895 SdHoareTripleChecker+Invalid, 3230 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 3189 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2023-11-29 06:48:58,842 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [622 Valid, 895 Invalid, 3230 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 3189 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2023-11-29 06:48:58,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3022 states. [2023-11-29 06:48:59,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3022 to 2980. [2023-11-29 06:48:59,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2980 states, 2680 states have (on average 1.3354477611940299) internal successors, (3579), 2731 states have internal predecessors, (3579), 246 states have call successors, (246), 2 states have call predecessors, (246), 2 states have return successors, (246), 246 states have call predecessors, (246), 246 states have call successors, (246) [2023-11-29 06:48:59,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2980 states to 2980 states and 4071 transitions. [2023-11-29 06:48:59,324 INFO L78 Accepts]: Start accepts. Automaton has 2980 states and 4071 transitions. Word has length 261 [2023-11-29 06:48:59,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:48:59,324 INFO L495 AbstractCegarLoop]: Abstraction has 2980 states and 4071 transitions. [2023-11-29 06:48:59,324 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 11.333333333333334) internal successors, (170), 15 states have internal predecessors, (170), 7 states have call successors, (20), 1 states have call predecessors, (20), 2 states have return successors, (20), 7 states have call predecessors, (20), 7 states have call successors, (20) [2023-11-29 06:48:59,324 INFO L276 IsEmpty]: Start isEmpty. Operand 2980 states and 4071 transitions. [2023-11-29 06:48:59,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 263 [2023-11-29 06:48:59,325 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:48:59,325 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:48:59,329 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (110)] Ended with exit code 0 [2023-11-29 06:48:59,525 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable108,110 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:48:59,526 INFO L420 AbstractCegarLoop]: === Iteration 110 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 06:48:59,526 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:48:59,526 INFO L85 PathProgramCache]: Analyzing trace with hash 7405457, now seen corresponding path program 1 times [2023-11-29 06:48:59,526 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:48:59,526 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1058922648] [2023-11-29 06:48:59,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:48:59,526 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:48:59,539 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:48:59,539 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1577447920] [2023-11-29 06:48:59,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:48:59,539 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:48:59,539 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:48:59,540 INFO L229 MonitoredProcess]: Starting monitored process 111 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:48:59,540 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (111)] Waiting until timeout for monitored process [2023-11-29 06:48:59,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:48:59,631 INFO L262 TraceCheckSpWp]: Trace formula consists of 430 conjuncts, 27 conjunts are in the unsatisfiable core [2023-11-29 06:48:59,633 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:49:02,448 INFO L134 CoverageAnalysis]: Checked inductivity of 610 backedges. 3 proven. 198 refuted. 0 times theorem prover too weak. 409 trivial. 0 not checked. [2023-11-29 06:49:02,449 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:49:03,123 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:49:03,123 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1058922648] [2023-11-29 06:49:03,123 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:49:03,123 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1577447920] [2023-11-29 06:49:03,123 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1577447920] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:49:03,123 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:49:03,123 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2023-11-29 06:49:03,124 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1548203696] [2023-11-29 06:49:03,124 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:49:03,124 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-11-29 06:49:03,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:49:03,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-11-29 06:49:03,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=329, Unknown=0, NotChecked=0, Total=380 [2023-11-29 06:49:03,125 INFO L87 Difference]: Start difference. First operand 2980 states and 4071 transitions. Second operand has 16 states, 15 states have (on average 11.4) internal successors, (171), 15 states have internal predecessors, (171), 7 states have call successors, (20), 1 states have call predecessors, (20), 2 states have return successors, (20), 7 states have call predecessors, (20), 7 states have call successors, (20) [2023-11-29 06:49:08,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:49:08,908 INFO L93 Difference]: Finished difference Result 3022 states and 4088 transitions. [2023-11-29 06:49:08,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-11-29 06:49:08,908 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 11.4) internal successors, (171), 15 states have internal predecessors, (171), 7 states have call successors, (20), 1 states have call predecessors, (20), 2 states have return successors, (20), 7 states have call predecessors, (20), 7 states have call successors, (20) Word has length 262 [2023-11-29 06:49:08,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:49:08,911 INFO L225 Difference]: With dead ends: 3022 [2023-11-29 06:49:08,911 INFO L226 Difference]: Without dead ends: 3020 [2023-11-29 06:49:08,911 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 309 GetRequests, 279 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 101 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=130, Invalid=862, Unknown=0, NotChecked=0, Total=992 [2023-11-29 06:49:08,912 INFO L413 NwaCegarLoop]: 110 mSDtfsCounter, 611 mSDsluCounter, 838 mSDsCounter, 0 mSdLazyCounter, 3321 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 616 SdHoareTripleChecker+Valid, 948 SdHoareTripleChecker+Invalid, 3361 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 3321 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2023-11-29 06:49:08,912 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [616 Valid, 948 Invalid, 3361 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 3321 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2023-11-29 06:49:08,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3020 states. [2023-11-29 06:49:09,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3020 to 2980. [2023-11-29 06:49:09,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2980 states, 2680 states have (on average 1.330223880597015) internal successors, (3565), 2731 states have internal predecessors, (3565), 246 states have call successors, (246), 2 states have call predecessors, (246), 2 states have return successors, (246), 246 states have call predecessors, (246), 246 states have call successors, (246) [2023-11-29 06:49:09,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2980 states to 2980 states and 4057 transitions. [2023-11-29 06:49:09,418 INFO L78 Accepts]: Start accepts. Automaton has 2980 states and 4057 transitions. Word has length 262 [2023-11-29 06:49:09,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:49:09,419 INFO L495 AbstractCegarLoop]: Abstraction has 2980 states and 4057 transitions. [2023-11-29 06:49:09,419 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 11.4) internal successors, (171), 15 states have internal predecessors, (171), 7 states have call successors, (20), 1 states have call predecessors, (20), 2 states have return successors, (20), 7 states have call predecessors, (20), 7 states have call successors, (20) [2023-11-29 06:49:09,419 INFO L276 IsEmpty]: Start isEmpty. Operand 2980 states and 4057 transitions. [2023-11-29 06:49:09,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2023-11-29 06:49:09,420 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:49:09,420 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:49:09,424 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (111)] Ended with exit code 0 [2023-11-29 06:49:09,620 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 111 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable109 [2023-11-29 06:49:09,620 INFO L420 AbstractCegarLoop]: === Iteration 111 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 06:49:09,620 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:49:09,620 INFO L85 PathProgramCache]: Analyzing trace with hash 229569266, now seen corresponding path program 1 times [2023-11-29 06:49:09,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:49:09,621 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [886653899] [2023-11-29 06:49:09,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:49:09,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:49:09,631 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:49:09,631 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1231726731] [2023-11-29 06:49:09,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:49:09,631 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:49:09,631 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:49:09,632 INFO L229 MonitoredProcess]: Starting monitored process 112 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:49:09,632 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (112)] Waiting until timeout for monitored process [2023-11-29 06:49:09,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:49:09,713 INFO L262 TraceCheckSpWp]: Trace formula consists of 431 conjuncts, 29 conjunts are in the unsatisfiable core [2023-11-29 06:49:09,715 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:49:11,511 INFO L134 CoverageAnalysis]: Checked inductivity of 613 backedges. 3 proven. 201 refuted. 0 times theorem prover too weak. 409 trivial. 0 not checked. [2023-11-29 06:49:11,511 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:49:23,753 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:49:23,753 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [886653899] [2023-11-29 06:49:23,754 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:49:23,754 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1231726731] [2023-11-29 06:49:23,754 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1231726731] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:49:23,754 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:49:23,754 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2023-11-29 06:49:23,754 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1504473294] [2023-11-29 06:49:23,754 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:49:23,754 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-11-29 06:49:23,755 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:49:23,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-11-29 06:49:23,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=303, Unknown=3, NotChecked=0, Total=380 [2023-11-29 06:49:23,755 INFO L87 Difference]: Start difference. First operand 2980 states and 4057 transitions. Second operand has 16 states, 15 states have (on average 11.466666666666667) internal successors, (172), 15 states have internal predecessors, (172), 7 states have call successors, (20), 1 states have call predecessors, (20), 2 states have return successors, (20), 7 states have call predecessors, (20), 7 states have call successors, (20) [2023-11-29 06:49:26,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:49:26,358 INFO L93 Difference]: Finished difference Result 3032 states and 4090 transitions. [2023-11-29 06:49:26,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-11-29 06:49:26,359 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 11.466666666666667) internal successors, (172), 15 states have internal predecessors, (172), 7 states have call successors, (20), 1 states have call predecessors, (20), 2 states have return successors, (20), 7 states have call predecessors, (20), 7 states have call successors, (20) Word has length 263 [2023-11-29 06:49:26,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:49:26,362 INFO L225 Difference]: With dead ends: 3032 [2023-11-29 06:49:26,362 INFO L226 Difference]: Without dead ends: 3030 [2023-11-29 06:49:26,362 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 303 GetRequests, 281 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 98 ImplicationChecksByTransitivity, 12.4s TimeCoverageRelationStatistics Valid=104, Invalid=445, Unknown=3, NotChecked=0, Total=552 [2023-11-29 06:49:26,363 INFO L413 NwaCegarLoop]: 136 mSDtfsCounter, 378 mSDsluCounter, 1136 mSDsCounter, 0 mSdLazyCounter, 2568 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 395 SdHoareTripleChecker+Valid, 1272 SdHoareTripleChecker+Invalid, 2579 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 2568 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2023-11-29 06:49:26,363 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [395 Valid, 1272 Invalid, 2579 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 2568 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2023-11-29 06:49:26,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3030 states. [2023-11-29 06:49:26,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3030 to 2980. [2023-11-29 06:49:26,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2980 states, 2680 states have (on average 1.3294776119402985) internal successors, (3563), 2731 states have internal predecessors, (3563), 246 states have call successors, (246), 2 states have call predecessors, (246), 2 states have return successors, (246), 246 states have call predecessors, (246), 246 states have call successors, (246) [2023-11-29 06:49:26,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2980 states to 2980 states and 4055 transitions. [2023-11-29 06:49:26,900 INFO L78 Accepts]: Start accepts. Automaton has 2980 states and 4055 transitions. Word has length 263 [2023-11-29 06:49:26,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:49:26,901 INFO L495 AbstractCegarLoop]: Abstraction has 2980 states and 4055 transitions. [2023-11-29 06:49:26,901 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 11.466666666666667) internal successors, (172), 15 states have internal predecessors, (172), 7 states have call successors, (20), 1 states have call predecessors, (20), 2 states have return successors, (20), 7 states have call predecessors, (20), 7 states have call successors, (20) [2023-11-29 06:49:26,901 INFO L276 IsEmpty]: Start isEmpty. Operand 2980 states and 4055 transitions. [2023-11-29 06:49:26,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 266 [2023-11-29 06:49:26,902 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:49:26,902 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:49:26,908 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (112)] Ended with exit code 0 [2023-11-29 06:49:27,103 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 112 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable110 [2023-11-29 06:49:27,103 INFO L420 AbstractCegarLoop]: === Iteration 112 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 06:49:27,103 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:49:27,103 INFO L85 PathProgramCache]: Analyzing trace with hash 1572735764, now seen corresponding path program 1 times [2023-11-29 06:49:27,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:49:27,103 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [940565819] [2023-11-29 06:49:27,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:49:27,104 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:49:27,116 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:49:27,116 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [194777704] [2023-11-29 06:49:27,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:49:27,116 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:49:27,116 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:49:27,117 INFO L229 MonitoredProcess]: Starting monitored process 113 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:49:27,118 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (113)] Waiting until timeout for monitored process [2023-11-29 06:49:27,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:49:27,202 INFO L262 TraceCheckSpWp]: Trace formula consists of 433 conjuncts, 25 conjunts are in the unsatisfiable core [2023-11-29 06:49:27,204 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:49:29,416 INFO L134 CoverageAnalysis]: Checked inductivity of 619 backedges. 3 proven. 207 refuted. 0 times theorem prover too weak. 409 trivial. 0 not checked. [2023-11-29 06:49:29,416 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:49:29,475 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:49:29,475 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [940565819] [2023-11-29 06:49:29,475 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:49:29,475 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [194777704] [2023-11-29 06:49:29,475 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [194777704] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:49:29,475 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:49:29,475 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2023-11-29 06:49:29,476 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1652067998] [2023-11-29 06:49:29,476 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:49:29,476 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-11-29 06:49:29,476 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:49:29,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-11-29 06:49:29,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=315, Unknown=0, NotChecked=0, Total=380 [2023-11-29 06:49:29,477 INFO L87 Difference]: Start difference. First operand 2980 states and 4055 transitions. Second operand has 18 states, 17 states have (on average 10.235294117647058) internal successors, (174), 17 states have internal predecessors, (174), 7 states have call successors, (20), 1 states have call predecessors, (20), 2 states have return successors, (20), 7 states have call predecessors, (20), 7 states have call successors, (20) [2023-11-29 06:49:34,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:49:34,852 INFO L93 Difference]: Finished difference Result 3416 states and 4625 transitions. [2023-11-29 06:49:34,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-11-29 06:49:34,852 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 10.235294117647058) internal successors, (174), 17 states have internal predecessors, (174), 7 states have call successors, (20), 1 states have call predecessors, (20), 2 states have return successors, (20), 7 states have call predecessors, (20), 7 states have call successors, (20) Word has length 265 [2023-11-29 06:49:34,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:49:34,855 INFO L225 Difference]: With dead ends: 3416 [2023-11-29 06:49:34,855 INFO L226 Difference]: Without dead ends: 3411 [2023-11-29 06:49:34,856 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 276 GetRequests, 252 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=105, Invalid=545, Unknown=0, NotChecked=0, Total=650 [2023-11-29 06:49:34,856 INFO L413 NwaCegarLoop]: 125 mSDtfsCounter, 508 mSDsluCounter, 920 mSDsCounter, 0 mSdLazyCounter, 3119 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 523 SdHoareTripleChecker+Valid, 1045 SdHoareTripleChecker+Invalid, 3140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 3119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2023-11-29 06:49:34,856 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [523 Valid, 1045 Invalid, 3140 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 3119 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2023-11-29 06:49:34,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3411 states. [2023-11-29 06:49:35,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3411 to 3305. [2023-11-29 06:49:35,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3305 states, 2977 states have (on average 1.339267719180383) internal successors, (3987), 3028 states have internal predecessors, (3987), 274 states have call successors, (274), 2 states have call predecessors, (274), 2 states have return successors, (274), 274 states have call predecessors, (274), 274 states have call successors, (274) [2023-11-29 06:49:35,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3305 states to 3305 states and 4535 transitions. [2023-11-29 06:49:35,405 INFO L78 Accepts]: Start accepts. Automaton has 3305 states and 4535 transitions. Word has length 265 [2023-11-29 06:49:35,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:49:35,405 INFO L495 AbstractCegarLoop]: Abstraction has 3305 states and 4535 transitions. [2023-11-29 06:49:35,405 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 10.235294117647058) internal successors, (174), 17 states have internal predecessors, (174), 7 states have call successors, (20), 1 states have call predecessors, (20), 2 states have return successors, (20), 7 states have call predecessors, (20), 7 states have call successors, (20) [2023-11-29 06:49:35,405 INFO L276 IsEmpty]: Start isEmpty. Operand 3305 states and 4535 transitions. [2023-11-29 06:49:35,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 267 [2023-11-29 06:49:35,406 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:49:35,407 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:49:35,411 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (113)] Forceful destruction successful, exit code 0 [2023-11-29 06:49:35,607 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 113 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable111 [2023-11-29 06:49:35,607 INFO L420 AbstractCegarLoop]: === Iteration 113 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 06:49:35,607 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:49:35,607 INFO L85 PathProgramCache]: Analyzing trace with hash 1510168533, now seen corresponding path program 1 times [2023-11-29 06:49:35,607 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:49:35,607 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1861297255] [2023-11-29 06:49:35,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:49:35,608 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:49:35,618 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:49:35,618 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1641878903] [2023-11-29 06:49:35,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:49:35,618 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:49:35,618 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:49:35,619 INFO L229 MonitoredProcess]: Starting monitored process 114 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:49:35,620 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (114)] Waiting until timeout for monitored process [2023-11-29 06:49:35,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:49:35,715 INFO L262 TraceCheckSpWp]: Trace formula consists of 434 conjuncts, 28 conjunts are in the unsatisfiable core [2023-11-29 06:49:35,718 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:49:39,384 INFO L134 CoverageAnalysis]: Checked inductivity of 622 backedges. 3 proven. 210 refuted. 0 times theorem prover too weak. 409 trivial. 0 not checked. [2023-11-29 06:49:39,384 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:49:39,659 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:49:39,659 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1861297255] [2023-11-29 06:49:39,659 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:49:39,659 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1641878903] [2023-11-29 06:49:39,660 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1641878903] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:49:39,660 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:49:39,660 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2023-11-29 06:49:39,660 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [955524649] [2023-11-29 06:49:39,660 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:49:39,660 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-11-29 06:49:39,660 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:49:39,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-11-29 06:49:39,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=285, Unknown=0, NotChecked=0, Total=342 [2023-11-29 06:49:39,661 INFO L87 Difference]: Start difference. First operand 3305 states and 4535 transitions. Second operand has 17 states, 16 states have (on average 10.9375) internal successors, (175), 16 states have internal predecessors, (175), 7 states have call successors, (20), 1 states have call predecessors, (20), 2 states have return successors, (20), 7 states have call predecessors, (20), 7 states have call successors, (20) [2023-11-29 06:49:46,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:49:46,366 INFO L93 Difference]: Finished difference Result 3342 states and 4552 transitions. [2023-11-29 06:49:46,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-11-29 06:49:46,366 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 10.9375) internal successors, (175), 16 states have internal predecessors, (175), 7 states have call successors, (20), 1 states have call predecessors, (20), 2 states have return successors, (20), 7 states have call predecessors, (20), 7 states have call successors, (20) Word has length 266 [2023-11-29 06:49:46,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:49:46,369 INFO L225 Difference]: With dead ends: 3342 [2023-11-29 06:49:46,370 INFO L226 Difference]: Without dead ends: 3341 [2023-11-29 06:49:46,370 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 279 GetRequests, 255 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=101, Invalid=549, Unknown=0, NotChecked=0, Total=650 [2023-11-29 06:49:46,370 INFO L413 NwaCegarLoop]: 115 mSDtfsCounter, 412 mSDsluCounter, 707 mSDsCounter, 0 mSdLazyCounter, 3551 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 429 SdHoareTripleChecker+Valid, 822 SdHoareTripleChecker+Invalid, 3563 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 3551 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2023-11-29 06:49:46,370 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [429 Valid, 822 Invalid, 3563 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 3551 Invalid, 0 Unknown, 0 Unchecked, 6.0s Time] [2023-11-29 06:49:46,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3341 states. [2023-11-29 06:49:46,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3341 to 3305. [2023-11-29 06:49:46,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3305 states, 2977 states have (on average 1.3369163587504198) internal successors, (3980), 3028 states have internal predecessors, (3980), 274 states have call successors, (274), 2 states have call predecessors, (274), 2 states have return successors, (274), 274 states have call predecessors, (274), 274 states have call successors, (274) [2023-11-29 06:49:46,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3305 states to 3305 states and 4528 transitions. [2023-11-29 06:49:46,920 INFO L78 Accepts]: Start accepts. Automaton has 3305 states and 4528 transitions. Word has length 266 [2023-11-29 06:49:46,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:49:46,920 INFO L495 AbstractCegarLoop]: Abstraction has 3305 states and 4528 transitions. [2023-11-29 06:49:46,920 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 10.9375) internal successors, (175), 16 states have internal predecessors, (175), 7 states have call successors, (20), 1 states have call predecessors, (20), 2 states have return successors, (20), 7 states have call predecessors, (20), 7 states have call successors, (20) [2023-11-29 06:49:46,920 INFO L276 IsEmpty]: Start isEmpty. Operand 3305 states and 4528 transitions. [2023-11-29 06:49:46,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 268 [2023-11-29 06:49:46,921 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:49:46,921 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:49:46,925 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (114)] Forceful destruction successful, exit code 0 [2023-11-29 06:49:47,121 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 114 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable112 [2023-11-29 06:49:47,122 INFO L420 AbstractCegarLoop]: === Iteration 114 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 06:49:47,122 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:49:47,122 INFO L85 PathProgramCache]: Analyzing trace with hash 977754495, now seen corresponding path program 2 times [2023-11-29 06:49:47,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:49:47,122 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [733698152] [2023-11-29 06:49:47,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:49:47,122 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:49:47,134 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:49:47,134 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [914662854] [2023-11-29 06:49:47,135 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 06:49:47,135 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:49:47,135 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:49:47,135 INFO L229 MonitoredProcess]: Starting monitored process 115 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:49:47,136 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (115)] Waiting until timeout for monitored process [2023-11-29 06:49:47,232 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 06:49:47,233 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 06:49:47,234 INFO L262 TraceCheckSpWp]: Trace formula consists of 424 conjuncts, 20 conjunts are in the unsatisfiable core [2023-11-29 06:49:47,236 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:49:48,351 INFO L134 CoverageAnalysis]: Checked inductivity of 681 backedges. 15 proven. 201 refuted. 0 times theorem prover too weak. 465 trivial. 0 not checked. [2023-11-29 06:49:48,352 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:49:53,767 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:49:53,767 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [733698152] [2023-11-29 06:49:53,768 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:49:53,768 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [914662854] [2023-11-29 06:49:53,768 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [914662854] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:49:53,768 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:49:53,768 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2023-11-29 06:49:53,768 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [278450181] [2023-11-29 06:49:53,768 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:49:53,768 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-29 06:49:53,768 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:49:53,769 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-29 06:49:53,769 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=245, Unknown=1, NotChecked=0, Total=306 [2023-11-29 06:49:53,769 INFO L87 Difference]: Start difference. First operand 3305 states and 4528 transitions. Second operand has 11 states, 10 states have (on average 17.1) internal successors, (171), 11 states have internal predecessors, (171), 6 states have call successors, (21), 1 states have call predecessors, (21), 2 states have return successors, (21), 7 states have call predecessors, (21), 6 states have call successors, (21) [2023-11-29 06:49:55,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:49:55,944 INFO L93 Difference]: Finished difference Result 3643 states and 4940 transitions. [2023-11-29 06:49:55,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-29 06:49:55,944 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 17.1) internal successors, (171), 11 states have internal predecessors, (171), 6 states have call successors, (21), 1 states have call predecessors, (21), 2 states have return successors, (21), 7 states have call predecessors, (21), 6 states have call successors, (21) Word has length 267 [2023-11-29 06:49:55,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:49:55,947 INFO L225 Difference]: With dead ends: 3643 [2023-11-29 06:49:55,947 INFO L226 Difference]: Without dead ends: 3642 [2023-11-29 06:49:55,948 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 498 GetRequests, 481 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 4.9s TimeCoverageRelationStatistics Valid=64, Invalid=277, Unknown=1, NotChecked=0, Total=342 [2023-11-29 06:49:55,948 INFO L413 NwaCegarLoop]: 200 mSDtfsCounter, 109 mSDsluCounter, 1195 mSDsCounter, 0 mSdLazyCounter, 1567 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 1395 SdHoareTripleChecker+Invalid, 1567 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1567 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-11-29 06:49:55,948 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [114 Valid, 1395 Invalid, 1567 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1567 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-11-29 06:49:55,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3642 states. [2023-11-29 06:49:56,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3642 to 3611. [2023-11-29 06:49:56,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3611 states, 3257 states have (on average 1.3229966226588885) internal successors, (4309), 3308 states have internal predecessors, (4309), 300 states have call successors, (300), 2 states have call predecessors, (300), 2 states have return successors, (300), 300 states have call predecessors, (300), 300 states have call successors, (300) [2023-11-29 06:49:56,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3611 states to 3611 states and 4909 transitions. [2023-11-29 06:49:56,556 INFO L78 Accepts]: Start accepts. Automaton has 3611 states and 4909 transitions. Word has length 267 [2023-11-29 06:49:56,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:49:56,556 INFO L495 AbstractCegarLoop]: Abstraction has 3611 states and 4909 transitions. [2023-11-29 06:49:56,556 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 17.1) internal successors, (171), 11 states have internal predecessors, (171), 6 states have call successors, (21), 1 states have call predecessors, (21), 2 states have return successors, (21), 7 states have call predecessors, (21), 6 states have call successors, (21) [2023-11-29 06:49:56,556 INFO L276 IsEmpty]: Start isEmpty. Operand 3611 states and 4909 transitions. [2023-11-29 06:49:56,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 270 [2023-11-29 06:49:56,557 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:49:56,557 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:49:56,562 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (115)] Forceful destruction successful, exit code 0 [2023-11-29 06:49:56,758 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 115 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable113 [2023-11-29 06:49:56,758 INFO L420 AbstractCegarLoop]: === Iteration 115 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 06:49:56,758 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:49:56,758 INFO L85 PathProgramCache]: Analyzing trace with hash -975764479, now seen corresponding path program 2 times [2023-11-29 06:49:56,758 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:49:56,758 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [620029472] [2023-11-29 06:49:56,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:49:56,758 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:49:56,769 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:49:56,769 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [515598152] [2023-11-29 06:49:56,769 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 06:49:56,769 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:49:56,769 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:49:56,770 INFO L229 MonitoredProcess]: Starting monitored process 116 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:49:56,771 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (116)] Waiting until timeout for monitored process [2023-11-29 06:49:56,866 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 06:49:56,866 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 06:49:56,868 INFO L262 TraceCheckSpWp]: Trace formula consists of 426 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-29 06:49:56,871 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:50:04,593 INFO L134 CoverageAnalysis]: Checked inductivity of 687 backedges. 44 proven. 121 refuted. 42 times theorem prover too weak. 480 trivial. 0 not checked. [2023-11-29 06:50:04,594 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:50:04,666 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:50:04,666 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [620029472] [2023-11-29 06:50:04,667 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:50:04,667 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [515598152] [2023-11-29 06:50:04,667 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [515598152] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:50:04,667 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:50:04,667 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2023-11-29 06:50:04,667 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [526667220] [2023-11-29 06:50:04,667 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:50:04,667 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 06:50:04,667 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:50:04,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 06:50:04,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=141, Unknown=1, NotChecked=0, Total=182 [2023-11-29 06:50:04,668 INFO L87 Difference]: Start difference. First operand 3611 states and 4909 transitions. Second operand has 12 states, 11 states have (on average 15.454545454545455) internal successors, (170), 12 states have internal predecessors, (170), 6 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 6 states have call predecessors, (21), 6 states have call successors, (21) [2023-11-29 06:50:14,404 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 5.09s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 06:50:33,609 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 06:50:38,027 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.55s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 06:50:43,627 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 06:50:45,863 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.20s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 06:50:50,000 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 06:50:52,053 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.88s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 06:51:01,786 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.72s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 06:51:02,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:51:02,372 INFO L93 Difference]: Finished difference Result 3639 states and 4921 transitions. [2023-11-29 06:51:02,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-29 06:51:02,372 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 15.454545454545455) internal successors, (170), 12 states have internal predecessors, (170), 6 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 6 states have call predecessors, (21), 6 states have call successors, (21) Word has length 269 [2023-11-29 06:51:02,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:51:02,375 INFO L225 Difference]: With dead ends: 3639 [2023-11-29 06:51:02,375 INFO L226 Difference]: Without dead ends: 3637 [2023-11-29 06:51:02,376 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 282 GetRequests, 262 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 24.2s TimeCoverageRelationStatistics Valid=105, Invalid=353, Unknown=4, NotChecked=0, Total=462 [2023-11-29 06:51:02,376 INFO L413 NwaCegarLoop]: 185 mSDtfsCounter, 133 mSDsluCounter, 855 mSDsCounter, 0 mSdLazyCounter, 2168 mSolverCounterSat, 8 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 38.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 1040 SdHoareTripleChecker+Invalid, 2181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 2168 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 38.6s IncrementalHoareTripleChecker+Time [2023-11-29 06:51:02,376 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [137 Valid, 1040 Invalid, 2181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 2168 Invalid, 5 Unknown, 0 Unchecked, 38.6s Time] [2023-11-29 06:51:02,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3637 states. [2023-11-29 06:51:02,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3637 to 3312. [2023-11-29 06:51:02,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3312 states, 2983 states have (on average 1.3318806570566544) internal successors, (3973), 3034 states have internal predecessors, (3973), 275 states have call successors, (275), 2 states have call predecessors, (275), 2 states have return successors, (275), 275 states have call predecessors, (275), 275 states have call successors, (275) [2023-11-29 06:51:02,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3312 states to 3312 states and 4523 transitions. [2023-11-29 06:51:02,930 INFO L78 Accepts]: Start accepts. Automaton has 3312 states and 4523 transitions. Word has length 269 [2023-11-29 06:51:02,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:51:02,931 INFO L495 AbstractCegarLoop]: Abstraction has 3312 states and 4523 transitions. [2023-11-29 06:51:02,931 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 15.454545454545455) internal successors, (170), 12 states have internal predecessors, (170), 6 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 6 states have call predecessors, (21), 6 states have call successors, (21) [2023-11-29 06:51:02,931 INFO L276 IsEmpty]: Start isEmpty. Operand 3312 states and 4523 transitions. [2023-11-29 06:51:02,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 273 [2023-11-29 06:51:02,932 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:51:02,932 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:51:02,936 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (116)] Ended with exit code 0 [2023-11-29 06:51:03,133 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 116 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable114 [2023-11-29 06:51:03,133 INFO L420 AbstractCegarLoop]: === Iteration 116 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 06:51:03,133 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:51:03,133 INFO L85 PathProgramCache]: Analyzing trace with hash -2068456340, now seen corresponding path program 2 times [2023-11-29 06:51:03,133 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:51:03,133 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [411831186] [2023-11-29 06:51:03,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:51:03,133 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:51:03,144 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:51:03,144 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1665339197] [2023-11-29 06:51:03,144 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 06:51:03,144 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:51:03,144 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:51:03,145 INFO L229 MonitoredProcess]: Starting monitored process 117 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:51:03,146 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e572c3-b4b5-426b-b481-4d16d62767f5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (117)] Waiting until timeout for monitored process [2023-11-29 06:51:03,235 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 06:51:03,235 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 06:51:03,237 INFO L262 TraceCheckSpWp]: Trace formula consists of 444 conjuncts, 36 conjunts are in the unsatisfiable core [2023-11-29 06:51:03,239 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:51:07,443 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 12 proven. 207 refuted. 0 times theorem prover too weak. 465 trivial. 0 not checked. [2023-11-29 06:51:07,443 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:51:16,762 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 12 proven. 207 refuted. 0 times theorem prover too weak. 465 trivial. 0 not checked. [2023-11-29 06:51:16,762 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:51:16,763 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [411831186] [2023-11-29 06:51:16,763 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:51:16,763 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1665339197] [2023-11-29 06:51:16,763 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1665339197] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 06:51:16,763 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 06:51:16,763 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16] total 30 [2023-11-29 06:51:16,763 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1507144997] [2023-11-29 06:51:16,763 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 06:51:16,764 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2023-11-29 06:51:16,764 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:51:16,764 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2023-11-29 06:51:16,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=142, Invalid=788, Unknown=0, NotChecked=0, Total=930 [2023-11-29 06:51:16,765 INFO L87 Difference]: Start difference. First operand 3312 states and 4523 transitions. Second operand has 31 states, 30 states have (on average 11.433333333333334) internal successors, (343), 31 states have internal predecessors, (343), 13 states have call successors, (38), 1 states have call predecessors, (38), 2 states have return successors, (38), 11 states have call predecessors, (38), 13 states have call successors, (38) [2023-11-29 06:51:37,035 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 06:51:45,970 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 06:52:09,592 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0]