./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/fermat1-ll_valuebound5.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cc90d14-414a-4f0a-b477-597fd2c389d3/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cc90d14-414a-4f0a-b477-597fd2c389d3/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_1cc90d14-414a-4f0a-b477-597fd2c389d3/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cc90d14-414a-4f0a-b477-597fd2c389d3/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/fermat1-ll_valuebound5.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cc90d14-414a-4f0a-b477-597fd2c389d3/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_1cc90d14-414a-4f0a-b477-597fd2c389d3/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 ee7efdbf8e082fecbcf7a0b7187f01592d4dffd310592a1175678347e3e281b9 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 04:26:57,439 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 04:26:57,502 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cc90d14-414a-4f0a-b477-597fd2c389d3/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-29 04:26:57,507 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 04:26:57,508 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 04:26:57,533 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 04:26:57,534 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 04:26:57,534 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 04:26:57,535 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 04:26:57,535 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 04:26:57,536 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 04:26:57,536 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 04:26:57,537 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 04:26:57,538 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 04:26:57,538 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 04:26:57,539 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 04:26:57,539 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 04:26:57,540 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 04:26:57,540 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 04:26:57,541 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 04:26:57,541 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 04:26:57,542 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 04:26:57,542 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 04:26:57,543 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 04:26:57,543 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-29 04:26:57,544 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-29 04:26:57,544 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 04:26:57,544 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 04:26:57,545 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 04:26:57,545 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 04:26:57,546 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 04:26:57,546 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 04:26:57,546 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 04:26:57,547 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 04:26:57,547 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 04:26:57,547 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 04:26:57,547 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 04:26:57,547 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 04:26:57,548 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 04:26:57,548 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 04:26:57,548 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 04:26:57,548 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 04:26:57,549 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 04:26:57,549 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 04:26:57,549 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_1cc90d14-414a-4f0a-b477-597fd2c389d3/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cc90d14-414a-4f0a-b477-597fd2c389d3/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ee7efdbf8e082fecbcf7a0b7187f01592d4dffd310592a1175678347e3e281b9 [2023-11-29 04:26:57,778 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 04:26:57,798 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 04:26:57,801 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 04:26:57,802 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 04:26:57,802 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 04:26:57,803 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cc90d14-414a-4f0a-b477-597fd2c389d3/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/nla-digbench-scaling/fermat1-ll_valuebound5.c [2023-11-29 04:27:00,562 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 04:27:00,735 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 04:27:00,736 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cc90d14-414a-4f0a-b477-597fd2c389d3/sv-benchmarks/c/nla-digbench-scaling/fermat1-ll_valuebound5.c [2023-11-29 04:27:00,745 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cc90d14-414a-4f0a-b477-597fd2c389d3/bin/uautomizer-verify-BQ2R08f2Ya/data/bac0249b2/1e502771dc86483fab37514c7084f265/FLAGa5b18f752 [2023-11-29 04:27:00,761 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cc90d14-414a-4f0a-b477-597fd2c389d3/bin/uautomizer-verify-BQ2R08f2Ya/data/bac0249b2/1e502771dc86483fab37514c7084f265 [2023-11-29 04:27:00,764 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 04:27:00,766 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 04:27:00,767 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 04:27:00,768 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 04:27:00,774 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 04:27:00,774 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 04:27:00" (1/1) ... [2023-11-29 04:27:00,776 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4e952118 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:27:00, skipping insertion in model container [2023-11-29 04:27:00,776 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 04:27:00" (1/1) ... [2023-11-29 04:27:00,802 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 04:27:00,990 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 04:27:01,002 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 04:27:01,029 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 04:27:01,044 INFO L206 MainTranslator]: Completed translation [2023-11-29 04:27:01,045 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:27:01 WrapperNode [2023-11-29 04:27:01,045 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 04:27:01,046 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 04:27:01,046 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 04:27:01,047 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 04:27:01,055 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:27:01" (1/1) ... [2023-11-29 04:27:01,063 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:27:01" (1/1) ... [2023-11-29 04:27:01,086 INFO L138 Inliner]: procedures = 14, calls = 16, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 155 [2023-11-29 04:27:01,086 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 04:27:01,087 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 04:27:01,087 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 04:27:01,087 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 04:27:01,096 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:27:01" (1/1) ... [2023-11-29 04:27:01,096 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:27:01" (1/1) ... [2023-11-29 04:27:01,098 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:27:01" (1/1) ... [2023-11-29 04:27:01,109 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 04:27:01,110 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:27:01" (1/1) ... [2023-11-29 04:27:01,110 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:27:01" (1/1) ... [2023-11-29 04:27:01,114 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:27:01" (1/1) ... [2023-11-29 04:27:01,117 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:27:01" (1/1) ... [2023-11-29 04:27:01,118 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:27:01" (1/1) ... [2023-11-29 04:27:01,120 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:27:01" (1/1) ... [2023-11-29 04:27:01,123 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 04:27:01,124 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 04:27:01,124 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 04:27:01,124 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 04:27:01,125 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:27:01" (1/1) ... [2023-11-29 04:27:01,133 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 04:27:01,146 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cc90d14-414a-4f0a-b477-597fd2c389d3/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:27:01,159 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cc90d14-414a-4f0a-b477-597fd2c389d3/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 04:27:01,162 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cc90d14-414a-4f0a-b477-597fd2c389d3/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 04:27:01,195 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 04:27:01,195 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-29 04:27:01,195 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-29 04:27:01,195 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-29 04:27:01,195 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 04:27:01,195 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 04:27:01,196 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-29 04:27:01,196 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-29 04:27:01,267 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 04:27:01,269 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 04:27:02,065 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 04:27:02,087 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 04:27:02,088 INFO L309 CfgBuilder]: Removed 3 assume(true) statements. [2023-11-29 04:27:02,088 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 04:27:02 BoogieIcfgContainer [2023-11-29 04:27:02,088 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 04:27:02,091 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 04:27:02,091 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 04:27:02,095 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 04:27:02,095 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 04:27:00" (1/3) ... [2023-11-29 04:27:02,096 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ab08062 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 04:27:02, skipping insertion in model container [2023-11-29 04:27:02,096 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:27:01" (2/3) ... [2023-11-29 04:27:02,097 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ab08062 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 04:27:02, skipping insertion in model container [2023-11-29 04:27:02,097 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 04:27:02" (3/3) ... [2023-11-29 04:27:02,099 INFO L112 eAbstractionObserver]: Analyzing ICFG fermat1-ll_valuebound5.c [2023-11-29 04:27:02,120 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 04:27:02,120 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 92 error locations. [2023-11-29 04:27:02,174 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 04:27:02,181 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;@4640fbee, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 04:27:02,181 INFO L358 AbstractCegarLoop]: Starting to check reachability of 92 error locations. [2023-11-29 04:27:02,186 INFO L276 IsEmpty]: Start isEmpty. Operand has 210 states, 107 states have (on average 1.9626168224299065) internal successors, (210), 199 states have internal predecessors, (210), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-29 04:27:02,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-29 04:27:02,194 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:27:02,194 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:27:02,195 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 89 more)] === [2023-11-29 04:27:02,201 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:27:02,201 INFO L85 PathProgramCache]: Analyzing trace with hash -1466449209, now seen corresponding path program 1 times [2023-11-29 04:27:02,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:27:02,211 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1490146358] [2023-11-29 04:27:02,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:27:02,211 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:27:02,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:27:02,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 04:27:02,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:27:02,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-29 04:27:02,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:27:02,369 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 04:27:02,370 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:27:02,370 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1490146358] [2023-11-29 04:27:02,371 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1490146358] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:27:02,372 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:27:02,372 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 04:27:02,374 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [429131671] [2023-11-29 04:27:02,375 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:27:02,380 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-29 04:27:02,380 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:27:02,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-29 04:27:02,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-29 04:27:02,417 INFO L87 Difference]: Start difference. First operand has 210 states, 107 states have (on average 1.9626168224299065) internal successors, (210), 199 states have internal predecessors, (210), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) Second operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 04:27:02,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:27:02,468 INFO L93 Difference]: Finished difference Result 408 states and 457 transitions. [2023-11-29 04:27:02,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-29 04:27:02,471 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 13 [2023-11-29 04:27:02,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:27:02,480 INFO L225 Difference]: With dead ends: 408 [2023-11-29 04:27:02,481 INFO L226 Difference]: Without dead ends: 197 [2023-11-29 04:27:02,484 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 8 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 04:27:02,488 INFO L413 NwaCegarLoop]: 206 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, 206 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 04:27:02,489 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 206 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 04:27:02,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2023-11-29 04:27:02,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 197. [2023-11-29 04:27:02,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 197 states, 106 states have (on average 1.7924528301886793) internal successors, (190), 187 states have internal predecessors, (190), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-11-29 04:27:02,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 204 transitions. [2023-11-29 04:27:02,537 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 204 transitions. Word has length 13 [2023-11-29 04:27:02,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:27:02,537 INFO L495 AbstractCegarLoop]: Abstraction has 197 states and 204 transitions. [2023-11-29 04:27:02,537 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 04:27:02,538 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 204 transitions. [2023-11-29 04:27:02,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-29 04:27:02,539 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:27:02,539 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:27:02,540 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-29 04:27:02,540 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 89 more)] === [2023-11-29 04:27:02,541 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:27:02,541 INFO L85 PathProgramCache]: Analyzing trace with hash -1859416637, now seen corresponding path program 1 times [2023-11-29 04:27:02,542 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:27:02,542 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1973402229] [2023-11-29 04:27:02,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:27:02,543 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:27:02,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:27:02,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 04:27:02,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:27:02,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-29 04:27:02,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:27:02,632 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 04:27:02,632 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:27:02,633 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1973402229] [2023-11-29 04:27:02,633 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1973402229] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:27:02,633 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:27:02,633 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 04:27:02,634 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [909181468] [2023-11-29 04:27:02,634 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:27:02,635 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 04:27:02,635 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:27:02,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 04:27:02,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 04:27:02,637 INFO L87 Difference]: Start difference. First operand 197 states and 204 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 04:27:02,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:27:02,700 INFO L93 Difference]: Finished difference Result 197 states and 204 transitions. [2023-11-29 04:27:02,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 04:27:02,700 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 13 [2023-11-29 04:27:02,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:27:02,703 INFO L225 Difference]: With dead ends: 197 [2023-11-29 04:27:02,703 INFO L226 Difference]: Without dead ends: 193 [2023-11-29 04:27:02,704 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 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 04:27:02,706 INFO L413 NwaCegarLoop]: 177 mSDtfsCounter, 178 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 183 SdHoareTripleChecker+Valid, 191 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 04:27:02,707 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [183 Valid, 191 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 04:27:02,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 193 states. [2023-11-29 04:27:02,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 193 to 193. [2023-11-29 04:27:02,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193 states, 106 states have (on average 1.7547169811320755) internal successors, (186), 183 states have internal predecessors, (186), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-11-29 04:27:02,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 200 transitions. [2023-11-29 04:27:02,727 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 200 transitions. Word has length 13 [2023-11-29 04:27:02,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:27:02,728 INFO L495 AbstractCegarLoop]: Abstraction has 193 states and 200 transitions. [2023-11-29 04:27:02,729 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 04:27:02,729 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 200 transitions. [2023-11-29 04:27:02,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-11-29 04:27:02,730 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:27:02,730 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:27:02,730 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-29 04:27:02,731 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 89 more)] === [2023-11-29 04:27:02,731 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:27:02,731 INFO L85 PathProgramCache]: Analyzing trace with hash -1807340860, now seen corresponding path program 1 times [2023-11-29 04:27:02,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:27:02,732 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [917359125] [2023-11-29 04:27:02,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:27:02,732 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:27:02,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:27:02,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 04:27:02,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:27:02,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-29 04:27:02,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:27:02,798 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 04:27:02,799 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:27:02,799 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [917359125] [2023-11-29 04:27:02,799 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [917359125] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:27:02,799 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:27:02,800 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 04:27:02,800 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [480166321] [2023-11-29 04:27:02,800 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:27:02,801 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 04:27:02,801 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:27:02,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 04:27:02,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 04:27:02,802 INFO L87 Difference]: Start difference. First operand 193 states and 200 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 04:27:02,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:27:02,851 INFO L93 Difference]: Finished difference Result 193 states and 200 transitions. [2023-11-29 04:27:02,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 04:27:02,852 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 14 [2023-11-29 04:27:02,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:27:02,854 INFO L225 Difference]: With dead ends: 193 [2023-11-29 04:27:02,854 INFO L226 Difference]: Without dead ends: 189 [2023-11-29 04:27:02,855 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 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 04:27:02,857 INFO L413 NwaCegarLoop]: 177 mSDtfsCounter, 173 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 178 SdHoareTripleChecker+Valid, 191 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 04:27:02,857 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [178 Valid, 191 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 04:27:02,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189 states. [2023-11-29 04:27:02,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189 to 189. [2023-11-29 04:27:02,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 189 states, 106 states have (on average 1.7169811320754718) internal successors, (182), 179 states have internal predecessors, (182), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-11-29 04:27:02,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 196 transitions. [2023-11-29 04:27:02,874 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 196 transitions. Word has length 14 [2023-11-29 04:27:02,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:27:02,874 INFO L495 AbstractCegarLoop]: Abstraction has 189 states and 196 transitions. [2023-11-29 04:27:02,875 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 04:27:02,875 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 196 transitions. [2023-11-29 04:27:02,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-11-29 04:27:02,875 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:27:02,876 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:27:02,876 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-29 04:27:02,876 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 89 more)] === [2023-11-29 04:27:02,877 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:27:02,877 INFO L85 PathProgramCache]: Analyzing trace with hash 1543402248, now seen corresponding path program 1 times [2023-11-29 04:27:02,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:27:02,877 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1779300601] [2023-11-29 04:27:02,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:27:02,878 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:27:02,892 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:27:02,892 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1997741270] [2023-11-29 04:27:02,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:27:02,892 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:27:02,893 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cc90d14-414a-4f0a-b477-597fd2c389d3/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:27:02,894 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cc90d14-414a-4f0a-b477-597fd2c389d3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:27:02,901 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cc90d14-414a-4f0a-b477-597fd2c389d3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-29 04:27:02,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:27:02,952 INFO L262 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-29 04:27:02,957 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:27:03,045 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-29 04:27:03,045 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 04:27:03,045 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:27:03,046 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1779300601] [2023-11-29 04:27:03,046 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:27:03,046 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1997741270] [2023-11-29 04:27:03,046 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1997741270] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:27:03,047 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:27:03,047 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 04:27:03,047 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2105307946] [2023-11-29 04:27:03,047 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:27:03,048 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 04:27:03,048 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:27:03,048 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 04:27:03,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-29 04:27:03,049 INFO L87 Difference]: Start difference. First operand 189 states and 196 transitions. Second operand has 5 states, 4 states have (on average 3.5) internal successors, (14), 5 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 04:27:03,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:27:03,141 INFO L93 Difference]: Finished difference Result 189 states and 196 transitions. [2023-11-29 04:27:03,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 04:27:03,141 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.5) internal successors, (14), 5 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 18 [2023-11-29 04:27:03,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:27:03,143 INFO L225 Difference]: With dead ends: 189 [2023-11-29 04:27:03,143 INFO L226 Difference]: Without dead ends: 187 [2023-11-29 04:27:03,144 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-29 04:27:03,145 INFO L413 NwaCegarLoop]: 172 mSDtfsCounter, 169 mSDsluCounter, 344 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 174 SdHoareTripleChecker+Valid, 516 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 04:27:03,145 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [174 Valid, 516 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 04:27:03,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187 states. [2023-11-29 04:27:03,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187 to 187. [2023-11-29 04:27:03,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 187 states, 106 states have (on average 1.6981132075471699) internal successors, (180), 177 states have internal predecessors, (180), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-11-29 04:27:03,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 194 transitions. [2023-11-29 04:27:03,157 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 194 transitions. Word has length 18 [2023-11-29 04:27:03,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:27:03,158 INFO L495 AbstractCegarLoop]: Abstraction has 187 states and 194 transitions. [2023-11-29 04:27:03,158 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.5) internal successors, (14), 5 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 04:27:03,158 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 194 transitions. [2023-11-29 04:27:03,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2023-11-29 04:27:03,159 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:27:03,159 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-11-29 04:27:03,166 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cc90d14-414a-4f0a-b477-597fd2c389d3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-29 04:27:03,364 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cc90d14-414a-4f0a-b477-597fd2c389d3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:27:03,365 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 89 more)] === [2023-11-29 04:27:03,365 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:27:03,365 INFO L85 PathProgramCache]: Analyzing trace with hash -1365491731, now seen corresponding path program 1 times [2023-11-29 04:27:03,365 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:27:03,366 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1543187101] [2023-11-29 04:27:03,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:27:03,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:27:03,376 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:27:03,377 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [814357237] [2023-11-29 04:27:03,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:27:03,377 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:27:03,377 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cc90d14-414a-4f0a-b477-597fd2c389d3/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:27:03,378 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cc90d14-414a-4f0a-b477-597fd2c389d3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:27:03,379 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cc90d14-414a-4f0a-b477-597fd2c389d3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-29 04:27:03,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:27:03,433 INFO L262 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-29 04:27:03,435 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:27:03,555 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-11-29 04:27:03,556 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:27:03,621 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:27:03,621 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1543187101] [2023-11-29 04:27:03,622 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:27:03,622 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [814357237] [2023-11-29 04:27:03,622 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [814357237] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:27:03,622 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 04:27:03,623 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2023-11-29 04:27:03,623 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1706568579] [2023-11-29 04:27:03,623 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 04:27:03,624 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 04:27:03,624 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:27:03,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 04:27:03,625 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-29 04:27:03,625 INFO L87 Difference]: Start difference. First operand 187 states and 194 transitions. Second operand has 5 states, 4 states have (on average 5.25) internal successors, (21), 5 states have internal predecessors, (21), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-29 04:27:03,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:27:03,760 INFO L93 Difference]: Finished difference Result 187 states and 194 transitions. [2023-11-29 04:27:03,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 04:27:03,761 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 5.25) internal successors, (21), 5 states have internal predecessors, (21), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 35 [2023-11-29 04:27:03,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:27:03,763 INFO L225 Difference]: With dead ends: 187 [2023-11-29 04:27:03,763 INFO L226 Difference]: Without dead ends: 184 [2023-11-29 04:27:03,763 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-11-29 04:27:03,765 INFO L413 NwaCegarLoop]: 156 mSDtfsCounter, 159 mSDsluCounter, 312 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 162 SdHoareTripleChecker+Valid, 468 SdHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 04:27:03,765 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [162 Valid, 468 Invalid, 116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 04:27:03,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states. [2023-11-29 04:27:03,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 184. [2023-11-29 04:27:03,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 184 states, 106 states have (on average 1.669811320754717) internal successors, (177), 174 states have internal predecessors, (177), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-11-29 04:27:03,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 191 transitions. [2023-11-29 04:27:03,776 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 191 transitions. Word has length 35 [2023-11-29 04:27:03,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:27:03,776 INFO L495 AbstractCegarLoop]: Abstraction has 184 states and 191 transitions. [2023-11-29 04:27:03,777 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 5.25) internal successors, (21), 5 states have internal predecessors, (21), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-29 04:27:03,777 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 191 transitions. [2023-11-29 04:27:03,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2023-11-29 04:27:03,778 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:27:03,778 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-11-29 04:27:03,783 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cc90d14-414a-4f0a-b477-597fd2c389d3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-11-29 04:27:03,983 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cc90d14-414a-4f0a-b477-597fd2c389d3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:27:03,984 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 89 more)] === [2023-11-29 04:27:03,984 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:27:03,984 INFO L85 PathProgramCache]: Analyzing trace with hash 619429364, now seen corresponding path program 1 times [2023-11-29 04:27:03,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:27:03,984 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1109969297] [2023-11-29 04:27:03,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:27:03,985 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:27:03,994 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:27:03,994 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1100162205] [2023-11-29 04:27:03,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:27:03,995 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:27:03,995 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cc90d14-414a-4f0a-b477-597fd2c389d3/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:27:03,996 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cc90d14-414a-4f0a-b477-597fd2c389d3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:27:03,997 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cc90d14-414a-4f0a-b477-597fd2c389d3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-29 04:27:04,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:27:04,042 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-29 04:27:04,044 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:27:04,147 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-11-29 04:27:04,148 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:27:04,307 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-11-29 04:27:04,307 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:27:04,307 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1109969297] [2023-11-29 04:27:04,308 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:27:04,308 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1100162205] [2023-11-29 04:27:04,308 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1100162205] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 04:27:04,308 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 04:27:04,308 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2023-11-29 04:27:04,308 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1545943696] [2023-11-29 04:27:04,308 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 04:27:04,309 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 04:27:04,309 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:27:04,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 04:27:04,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-11-29 04:27:04,310 INFO L87 Difference]: Start difference. First operand 184 states and 191 transitions. Second operand has 9 states, 8 states have (on average 4.875) internal successors, (39), 9 states have internal predecessors, (39), 5 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 5 states have call predecessors, (7), 5 states have call successors, (7) [2023-11-29 04:27:04,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:27:04,532 INFO L93 Difference]: Finished difference Result 184 states and 191 transitions. [2023-11-29 04:27:04,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 04:27:04,533 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 4.875) internal successors, (39), 9 states have internal predecessors, (39), 5 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 5 states have call predecessors, (7), 5 states have call successors, (7) Word has length 36 [2023-11-29 04:27:04,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:27:04,534 INFO L225 Difference]: With dead ends: 184 [2023-11-29 04:27:04,534 INFO L226 Difference]: Without dead ends: 183 [2023-11-29 04:27:04,535 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2023-11-29 04:27:04,536 INFO L413 NwaCegarLoop]: 144 mSDtfsCounter, 312 mSDsluCounter, 174 mSDsCounter, 0 mSdLazyCounter, 121 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 315 SdHoareTripleChecker+Valid, 318 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 04:27:04,536 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [315 Valid, 318 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 121 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 04:27:04,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2023-11-29 04:27:04,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 183. [2023-11-29 04:27:04,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 183 states, 106 states have (on average 1.6603773584905661) internal successors, (176), 173 states have internal predecessors, (176), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-11-29 04:27:04,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 190 transitions. [2023-11-29 04:27:04,550 INFO L78 Accepts]: Start accepts. Automaton has 183 states and 190 transitions. Word has length 36 [2023-11-29 04:27:04,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:27:04,551 INFO L495 AbstractCegarLoop]: Abstraction has 183 states and 190 transitions. [2023-11-29 04:27:04,551 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 4.875) internal successors, (39), 9 states have internal predecessors, (39), 5 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 5 states have call predecessors, (7), 5 states have call successors, (7) [2023-11-29 04:27:04,551 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 190 transitions. [2023-11-29 04:27:04,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2023-11-29 04:27:04,552 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:27:04,552 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-11-29 04:27:04,558 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cc90d14-414a-4f0a-b477-597fd2c389d3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-11-29 04:27:04,758 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cc90d14-414a-4f0a-b477-597fd2c389d3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2023-11-29 04:27:04,759 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 89 more)] === [2023-11-29 04:27:04,759 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:27:04,759 INFO L85 PathProgramCache]: Analyzing trace with hash -1728832970, now seen corresponding path program 1 times [2023-11-29 04:27:04,759 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:27:04,759 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [431621941] [2023-11-29 04:27:04,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:27:04,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:27:04,770 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:27:04,771 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [964888454] [2023-11-29 04:27:04,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:27:04,771 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:27:04,771 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cc90d14-414a-4f0a-b477-597fd2c389d3/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:27:04,772 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cc90d14-414a-4f0a-b477-597fd2c389d3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:27:04,777 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cc90d14-414a-4f0a-b477-597fd2c389d3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-29 04:27:04,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:27:04,823 INFO L262 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 04:27:04,825 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:27:04,843 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-29 04:27:04,844 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 04:27:04,844 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:27:04,844 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [431621941] [2023-11-29 04:27:04,844 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:27:04,844 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [964888454] [2023-11-29 04:27:04,845 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [964888454] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:27:04,845 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:27:04,845 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 04:27:04,845 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [503659133] [2023-11-29 04:27:04,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:27:04,846 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 04:27:04,846 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:27:04,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 04:27:04,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 04:27:04,847 INFO L87 Difference]: Start difference. First operand 183 states and 190 transitions. Second operand has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-29 04:27:05,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:27:05,027 INFO L93 Difference]: Finished difference Result 324 states and 342 transitions. [2023-11-29 04:27:05,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 04:27:05,027 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 38 [2023-11-29 04:27:05,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:27:05,030 INFO L225 Difference]: With dead ends: 324 [2023-11-29 04:27:05,030 INFO L226 Difference]: Without dead ends: 318 [2023-11-29 04:27:05,031 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 36 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 04:27:05,032 INFO L413 NwaCegarLoop]: 155 mSDtfsCounter, 137 mSDsluCounter, 147 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 302 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 04:27:05,032 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [140 Valid, 302 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 04:27:05,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 318 states. [2023-11-29 04:27:05,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 318 to 246. [2023-11-29 04:27:05,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 246 states, 166 states have (on average 1.6927710843373494) internal successors, (281), 233 states have internal predecessors, (281), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-11-29 04:27:05,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 301 transitions. [2023-11-29 04:27:05,048 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 301 transitions. Word has length 38 [2023-11-29 04:27:05,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:27:05,048 INFO L495 AbstractCegarLoop]: Abstraction has 246 states and 301 transitions. [2023-11-29 04:27:05,048 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-29 04:27:05,048 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 301 transitions. [2023-11-29 04:27:05,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2023-11-29 04:27:05,050 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:27:05,050 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-11-29 04:27:05,061 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cc90d14-414a-4f0a-b477-597fd2c389d3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-29 04:27:05,261 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cc90d14-414a-4f0a-b477-597fd2c389d3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:27:05,261 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 89 more)] === [2023-11-29 04:27:05,261 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:27:05,262 INFO L85 PathProgramCache]: Analyzing trace with hash -2054214440, now seen corresponding path program 1 times [2023-11-29 04:27:05,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:27:05,262 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [272144101] [2023-11-29 04:27:05,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:27:05,262 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:27:05,271 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:27:05,271 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [787029064] [2023-11-29 04:27:05,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:27:05,272 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:27:05,272 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cc90d14-414a-4f0a-b477-597fd2c389d3/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:27:05,273 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cc90d14-414a-4f0a-b477-597fd2c389d3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:27:05,278 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cc90d14-414a-4f0a-b477-597fd2c389d3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-29 04:27:05,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:27:05,319 INFO L262 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 04:27:05,320 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:27:05,625 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-29 04:27:05,625 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 04:27:05,625 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:27:05,625 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [272144101] [2023-11-29 04:27:05,625 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:27:05,625 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [787029064] [2023-11-29 04:27:05,626 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [787029064] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:27:05,626 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:27:05,626 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 04:27:05,626 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1985354120] [2023-11-29 04:27:05,626 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:27:05,626 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 04:27:05,626 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:27:05,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 04:27:05,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 04:27:05,627 INFO L87 Difference]: Start difference. First operand 246 states and 301 transitions. Second operand has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-29 04:27:07,474 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.84s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2023-11-29 04:27:11,562 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 04:27:15,566 WARN L539 Checker$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 04:27:20,274 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 04:27:21,524 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 04:27:25,531 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 04:27:29,616 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 04:27:33,629 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 04:27:37,639 WARN L539 Checker$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 04:27:39,785 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 04:27:42,126 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.34s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 04:27:44,604 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.48s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 04:27:46,131 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 04:27:48,364 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.23s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 04:27:49,877 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 04:27:51,200 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 04:27:55,208 WARN L539 Checker$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 04:27:59,212 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 04:28:01,235 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 04:28:04,007 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.77s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 04:28:06,375 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.37s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 04:28:09,624 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.32s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 04:28:14,279 WARN L539 Checker$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 04:28:19,848 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 04:28:23,856 WARN L539 Checker$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 04:28:26,944 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.37s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 04:28:29,273 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.32s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 04:28:31,344 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 04:28:33,657 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.31s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 04:28:36,009 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.35s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 04:28:40,685 WARN L539 Checker$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 04:28:42,533 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.85s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 04:28:42,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:28:42,534 INFO L93 Difference]: Finished difference Result 324 states and 336 transitions. [2023-11-29 04:28:42,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 04:28:42,536 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 39 [2023-11-29 04:28:42,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:28:42,539 INFO L225 Difference]: With dead ends: 324 [2023-11-29 04:28:42,539 INFO L226 Difference]: Without dead ends: 321 [2023-11-29 04:28:42,540 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 04:28:42,541 INFO L413 NwaCegarLoop]: 144 mSDtfsCounter, 436 mSDsluCounter, 149 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 15 mSolverCounterUnsat, 39 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 96.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 442 SdHoareTripleChecker+Valid, 293 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 39 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 96.8s IncrementalHoareTripleChecker+Time [2023-11-29 04:28:42,541 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [442 Valid, 293 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 58 Invalid, 39 Unknown, 0 Unchecked, 96.8s Time] [2023-11-29 04:28:42,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 321 states. [2023-11-29 04:28:42,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 321 to 246. [2023-11-29 04:28:42,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 246 states, 166 states have (on average 1.6746987951807228) internal successors, (278), 233 states have internal predecessors, (278), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-11-29 04:28:42,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 298 transitions. [2023-11-29 04:28:42,564 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 298 transitions. Word has length 39 [2023-11-29 04:28:42,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:28:42,564 INFO L495 AbstractCegarLoop]: Abstraction has 246 states and 298 transitions. [2023-11-29 04:28:42,565 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-29 04:28:42,565 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 298 transitions. [2023-11-29 04:28:42,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2023-11-29 04:28:42,566 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:28:42,566 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-11-29 04:28:42,573 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cc90d14-414a-4f0a-b477-597fd2c389d3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-29 04:28:42,767 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cc90d14-414a-4f0a-b477-597fd2c389d3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:28:42,767 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 89 more)] === [2023-11-29 04:28:42,767 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:28:42,768 INFO L85 PathProgramCache]: Analyzing trace with hash 1584881882, now seen corresponding path program 1 times [2023-11-29 04:28:42,768 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:28:42,768 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [460917279] [2023-11-29 04:28:42,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:28:42,768 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:28:42,777 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:28:42,778 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2037345973] [2023-11-29 04:28:42,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:28:42,778 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:28:42,778 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cc90d14-414a-4f0a-b477-597fd2c389d3/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:28:42,779 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cc90d14-414a-4f0a-b477-597fd2c389d3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:28:42,780 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cc90d14-414a-4f0a-b477-597fd2c389d3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-29 04:28:42,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:28:42,831 INFO L262 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-29 04:28:42,834 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:28:43,103 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-11-29 04:28:43,103 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:28:43,360 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:28:43,361 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [460917279] [2023-11-29 04:28:43,361 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:28:43,361 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2037345973] [2023-11-29 04:28:43,361 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2037345973] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:28:43,361 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 04:28:43,361 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2023-11-29 04:28:43,361 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1513136596] [2023-11-29 04:28:43,361 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 04:28:43,362 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 04:28:43,362 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:28:43,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 04:28:43,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2023-11-29 04:28:43,363 INFO L87 Difference]: Start difference. First operand 246 states and 298 transitions. Second operand has 8 states, 7 states have (on average 3.857142857142857) internal successors, (27), 8 states have internal predecessors, (27), 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 04:28:45,869 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 04:28:49,961 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 04:28:52,542 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.57s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 04:28:53,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:28:53,780 INFO L93 Difference]: Finished difference Result 321 states and 333 transitions. [2023-11-29 04:28:53,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 04:28:53,780 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.857142857142857) internal successors, (27), 8 states have internal predecessors, (27), 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 41 [2023-11-29 04:28:53,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:28:53,783 INFO L225 Difference]: With dead ends: 321 [2023-11-29 04:28:53,783 INFO L226 Difference]: Without dead ends: 318 [2023-11-29 04:28:53,783 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=56, Invalid=154, Unknown=0, NotChecked=0, Total=210 [2023-11-29 04:28:53,784 INFO L413 NwaCegarLoop]: 130 mSDtfsCounter, 419 mSDsluCounter, 399 mSDsCounter, 0 mSdLazyCounter, 252 mSolverCounterSat, 14 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 422 SdHoareTripleChecker+Valid, 529 SdHoareTripleChecker+Invalid, 271 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 252 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.4s IncrementalHoareTripleChecker+Time [2023-11-29 04:28:53,784 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [422 Valid, 529 Invalid, 271 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 252 Invalid, 5 Unknown, 0 Unchecked, 10.4s Time] [2023-11-29 04:28:53,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 318 states. [2023-11-29 04:28:53,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 318 to 246. [2023-11-29 04:28:53,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 246 states, 166 states have (on average 1.6566265060240963) internal successors, (275), 233 states have internal predecessors, (275), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-11-29 04:28:53,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 295 transitions. [2023-11-29 04:28:53,803 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 295 transitions. Word has length 41 [2023-11-29 04:28:53,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:28:53,803 INFO L495 AbstractCegarLoop]: Abstraction has 246 states and 295 transitions. [2023-11-29 04:28:53,803 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.857142857142857) internal successors, (27), 8 states have internal predecessors, (27), 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 04:28:53,804 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 295 transitions. [2023-11-29 04:28:53,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2023-11-29 04:28:53,805 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:28:53,805 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-11-29 04:28:53,811 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cc90d14-414a-4f0a-b477-597fd2c389d3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2023-11-29 04:28:54,009 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cc90d14-414a-4f0a-b477-597fd2c389d3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:28:54,009 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 89 more)] === [2023-11-29 04:28:54,010 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:28:54,010 INFO L85 PathProgramCache]: Analyzing trace with hash -1641898788, now seen corresponding path program 1 times [2023-11-29 04:28:54,010 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:28:54,010 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1863220253] [2023-11-29 04:28:54,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:28:54,010 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:28:54,016 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:28:54,017 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1416381192] [2023-11-29 04:28:54,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:28:54,017 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:28:54,017 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cc90d14-414a-4f0a-b477-597fd2c389d3/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:28:54,018 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cc90d14-414a-4f0a-b477-597fd2c389d3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:28:54,019 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cc90d14-414a-4f0a-b477-597fd2c389d3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-29 04:28:54,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:28:54,065 INFO L262 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-29 04:28:54,068 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:28:54,404 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-11-29 04:28:54,404 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:28:54,728 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-29 04:28:54,728 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:28:54,728 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1863220253] [2023-11-29 04:28:54,728 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:28:54,728 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1416381192] [2023-11-29 04:28:54,728 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1416381192] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 04:28:54,729 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 04:28:54,729 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6] total 11 [2023-11-29 04:28:54,729 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [352162152] [2023-11-29 04:28:54,729 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 04:28:54,730 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 04:28:54,730 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:28:54,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 04:28:54,731 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2023-11-29 04:28:54,731 INFO L87 Difference]: Start difference. First operand 246 states and 295 transitions. Second operand has 12 states, 11 states have (on average 4.818181818181818) internal successors, (53), 12 states have internal predecessors, (53), 6 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (8), 6 states have call predecessors, (8), 6 states have call successors, (8) [2023-11-29 04:28:55,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:28:55,822 INFO L93 Difference]: Finished difference Result 395 states and 467 transitions. [2023-11-29 04:28:55,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-29 04:28:55,822 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 4.818181818181818) internal successors, (53), 12 states have internal predecessors, (53), 6 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (8), 6 states have call predecessors, (8), 6 states have call successors, (8) Word has length 43 [2023-11-29 04:28:55,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:28:55,825 INFO L225 Difference]: With dead ends: 395 [2023-11-29 04:28:55,825 INFO L226 Difference]: Without dead ends: 368 [2023-11-29 04:28:55,825 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=63, Invalid=177, Unknown=0, NotChecked=0, Total=240 [2023-11-29 04:28:55,826 INFO L413 NwaCegarLoop]: 62 mSDtfsCounter, 1382 mSDsluCounter, 252 mSDsCounter, 0 mSdLazyCounter, 605 mSolverCounterSat, 78 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1383 SdHoareTripleChecker+Valid, 314 SdHoareTripleChecker+Invalid, 683 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 78 IncrementalHoareTripleChecker+Valid, 605 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-11-29 04:28:55,826 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1383 Valid, 314 Invalid, 683 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [78 Valid, 605 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-11-29 04:28:55,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 368 states. [2023-11-29 04:28:55,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 368 to 322. [2023-11-29 04:28:55,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 322 states, 256 states have (on average 1.4765625) internal successors, (378), 306 states have internal predecessors, (378), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2023-11-29 04:28:55,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 322 states to 322 states and 404 transitions. [2023-11-29 04:28:55,850 INFO L78 Accepts]: Start accepts. Automaton has 322 states and 404 transitions. Word has length 43 [2023-11-29 04:28:55,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:28:55,850 INFO L495 AbstractCegarLoop]: Abstraction has 322 states and 404 transitions. [2023-11-29 04:28:55,851 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 4.818181818181818) internal successors, (53), 12 states have internal predecessors, (53), 6 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (8), 6 states have call predecessors, (8), 6 states have call successors, (8) [2023-11-29 04:28:55,851 INFO L276 IsEmpty]: Start isEmpty. Operand 322 states and 404 transitions. [2023-11-29 04:28:55,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2023-11-29 04:28:55,852 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:28:55,852 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-11-29 04:28:55,857 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cc90d14-414a-4f0a-b477-597fd2c389d3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-11-29 04:28:56,052 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cc90d14-414a-4f0a-b477-597fd2c389d3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:28:56,053 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 89 more)] === [2023-11-29 04:28:56,053 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:28:56,053 INFO L85 PathProgramCache]: Analyzing trace with hash -1611734818, now seen corresponding path program 1 times [2023-11-29 04:28:56,053 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:28:56,053 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [54743989] [2023-11-29 04:28:56,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:28:56,054 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:28:56,062 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:28:56,062 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1499651211] [2023-11-29 04:28:56,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:28:56,063 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:28:56,063 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cc90d14-414a-4f0a-b477-597fd2c389d3/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:28:56,064 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cc90d14-414a-4f0a-b477-597fd2c389d3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:28:56,065 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cc90d14-414a-4f0a-b477-597fd2c389d3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-29 04:28:56,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:28:56,113 INFO L262 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 04:28:56,114 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:28:56,135 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-29 04:28:56,135 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 04:28:56,136 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:28:56,136 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [54743989] [2023-11-29 04:28:56,136 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:28:56,136 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1499651211] [2023-11-29 04:28:56,136 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1499651211] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:28:56,136 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:28:56,136 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 04:28:56,137 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [937894659] [2023-11-29 04:28:56,137 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:28:56,137 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 04:28:56,137 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:28:56,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 04:28:56,138 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 04:28:56,138 INFO L87 Difference]: Start difference. First operand 322 states and 404 transitions. Second operand has 3 states, 2 states have (on average 14.0) internal successors, (28), 3 states have internal predecessors, (28), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-29 04:28:56,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:28:56,369 INFO L93 Difference]: Finished difference Result 490 states and 592 transitions. [2023-11-29 04:28:56,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 04:28:56,369 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 14.0) internal successors, (28), 3 states have internal predecessors, (28), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 45 [2023-11-29 04:28:56,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:28:56,373 INFO L225 Difference]: With dead ends: 490 [2023-11-29 04:28:56,374 INFO L226 Difference]: Without dead ends: 449 [2023-11-29 04:28:56,374 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 43 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 04:28:56,375 INFO L413 NwaCegarLoop]: 131 mSDtfsCounter, 102 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 219 SdHoareTripleChecker+Invalid, 159 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 04:28:56,375 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [105 Valid, 219 Invalid, 159 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 04:28:56,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 449 states. [2023-11-29 04:28:56,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 449 to 423. [2023-11-29 04:28:56,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 423 states, 354 states have (on average 1.3898305084745763) internal successors, (492), 404 states have internal predecessors, (492), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2023-11-29 04:28:56,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 423 states to 423 states and 524 transitions. [2023-11-29 04:28:56,403 INFO L78 Accepts]: Start accepts. Automaton has 423 states and 524 transitions. Word has length 45 [2023-11-29 04:28:56,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:28:56,403 INFO L495 AbstractCegarLoop]: Abstraction has 423 states and 524 transitions. [2023-11-29 04:28:56,404 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 14.0) internal successors, (28), 3 states have internal predecessors, (28), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-29 04:28:56,404 INFO L276 IsEmpty]: Start isEmpty. Operand 423 states and 524 transitions. [2023-11-29 04:28:56,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2023-11-29 04:28:56,406 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:28:56,406 INFO L195 NwaCegarLoop]: trace histogram [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 04:28:56,411 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cc90d14-414a-4f0a-b477-597fd2c389d3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-11-29 04:28:56,608 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cc90d14-414a-4f0a-b477-597fd2c389d3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:28:56,608 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr50ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 89 more)] === [2023-11-29 04:28:56,608 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:28:56,609 INFO L85 PathProgramCache]: Analyzing trace with hash -707959789, now seen corresponding path program 1 times [2023-11-29 04:28:56,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:28:56,609 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [337895418] [2023-11-29 04:28:56,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:28:56,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:28:56,619 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:28:56,620 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1346617271] [2023-11-29 04:28:56,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:28:56,620 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:28:56,620 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cc90d14-414a-4f0a-b477-597fd2c389d3/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:28:56,622 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cc90d14-414a-4f0a-b477-597fd2c389d3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:28:56,623 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cc90d14-414a-4f0a-b477-597fd2c389d3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-29 04:28:56,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:28:56,696 INFO L262 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 04:28:56,699 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:28:56,773 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-11-29 04:28:56,773 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 04:28:56,773 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:28:56,773 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [337895418] [2023-11-29 04:28:56,773 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:28:56,774 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1346617271] [2023-11-29 04:28:56,774 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1346617271] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:28:56,774 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:28:56,775 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 04:28:56,775 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1383036293] [2023-11-29 04:28:56,775 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:28:56,775 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 04:28:56,776 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:28:56,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 04:28:56,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 04:28:56,777 INFO L87 Difference]: Start difference. First operand 423 states and 524 transitions. Second operand has 4 states, 3 states have (on average 21.0) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-29 04:28:57,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:28:57,078 INFO L93 Difference]: Finished difference Result 449 states and 525 transitions. [2023-11-29 04:28:57,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 04:28:57,079 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 21.0) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 87 [2023-11-29 04:28:57,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:28:57,082 INFO L225 Difference]: With dead ends: 449 [2023-11-29 04:28:57,082 INFO L226 Difference]: Without dead ends: 448 [2023-11-29 04:28:57,083 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 84 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 04:28:57,083 INFO L413 NwaCegarLoop]: 132 mSDtfsCounter, 69 mSDsluCounter, 142 mSDsCounter, 0 mSdLazyCounter, 259 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 274 SdHoareTripleChecker+Invalid, 264 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 259 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 04:28:57,084 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 274 Invalid, 264 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 259 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 04:28:57,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 448 states. [2023-11-29 04:28:57,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 448 to 423. [2023-11-29 04:28:57,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 423 states, 354 states have (on average 1.384180790960452) internal successors, (490), 404 states have internal predecessors, (490), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2023-11-29 04:28:57,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 423 states to 423 states and 522 transitions. [2023-11-29 04:28:57,120 INFO L78 Accepts]: Start accepts. Automaton has 423 states and 522 transitions. Word has length 87 [2023-11-29 04:28:57,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:28:57,120 INFO L495 AbstractCegarLoop]: Abstraction has 423 states and 522 transitions. [2023-11-29 04:28:57,121 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 21.0) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-29 04:28:57,121 INFO L276 IsEmpty]: Start isEmpty. Operand 423 states and 522 transitions. [2023-11-29 04:28:57,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2023-11-29 04:28:57,122 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:28:57,123 INFO L195 NwaCegarLoop]: trace histogram [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, 1] [2023-11-29 04:28:57,129 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cc90d14-414a-4f0a-b477-597fd2c389d3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2023-11-29 04:28:57,324 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cc90d14-414a-4f0a-b477-597fd2c389d3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2023-11-29 04:28:57,324 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr51ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 89 more)] === [2023-11-29 04:28:57,325 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:28:57,325 INFO L85 PathProgramCache]: Analyzing trace with hash -471916808, now seen corresponding path program 1 times [2023-11-29 04:28:57,325 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:28:57,325 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1652606733] [2023-11-29 04:28:57,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:28:57,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:28:57,336 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:28:57,336 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1644705600] [2023-11-29 04:28:57,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:28:57,337 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:28:57,337 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cc90d14-414a-4f0a-b477-597fd2c389d3/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:28:57,338 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cc90d14-414a-4f0a-b477-597fd2c389d3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:28:57,343 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cc90d14-414a-4f0a-b477-597fd2c389d3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-11-29 04:28:57,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:28:57,405 INFO L262 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 04:28:57,407 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:28:57,586 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-11-29 04:28:57,586 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 04:28:57,586 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:28:57,586 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1652606733] [2023-11-29 04:28:57,587 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:28:57,587 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1644705600] [2023-11-29 04:28:57,587 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1644705600] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:28:57,587 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:28:57,587 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 04:28:57,587 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [267489989] [2023-11-29 04:28:57,587 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:28:57,588 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 04:28:57,588 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:28:57,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 04:28:57,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 04:28:57,589 INFO L87 Difference]: Start difference. First operand 423 states and 522 transitions. Second operand has 4 states, 3 states have (on average 21.333333333333332) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-29 04:28:57,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:28:57,772 INFO L93 Difference]: Finished difference Result 423 states and 522 transitions. [2023-11-29 04:28:57,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 04:28:57,773 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 21.333333333333332) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 88 [2023-11-29 04:28:57,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:28:57,776 INFO L225 Difference]: With dead ends: 423 [2023-11-29 04:28:57,777 INFO L226 Difference]: Without dead ends: 417 [2023-11-29 04:28:57,777 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 85 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 04:28:57,778 INFO L413 NwaCegarLoop]: 59 mSDtfsCounter, 87 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 116 SdHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 04:28:57,778 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [88 Valid, 116 Invalid, 119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 04:28:57,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 417 states. [2023-11-29 04:28:57,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 417 to 417. [2023-11-29 04:28:57,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 417 states, 354 states have (on average 1.344632768361582) internal successors, (476), 398 states have internal predecessors, (476), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2023-11-29 04:28:57,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 417 states to 417 states and 508 transitions. [2023-11-29 04:28:57,813 INFO L78 Accepts]: Start accepts. Automaton has 417 states and 508 transitions. Word has length 88 [2023-11-29 04:28:57,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:28:57,814 INFO L495 AbstractCegarLoop]: Abstraction has 417 states and 508 transitions. [2023-11-29 04:28:57,814 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 21.333333333333332) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-29 04:28:57,814 INFO L276 IsEmpty]: Start isEmpty. Operand 417 states and 508 transitions. [2023-11-29 04:28:57,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2023-11-29 04:28:57,816 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:28:57,816 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1] [2023-11-29 04:28:57,822 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cc90d14-414a-4f0a-b477-597fd2c389d3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2023-11-29 04:28:58,016 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cc90d14-414a-4f0a-b477-597fd2c389d3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2023-11-29 04:28:58,017 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 89 more)] === [2023-11-29 04:28:58,017 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:28:58,017 INFO L85 PathProgramCache]: Analyzing trace with hash -1860687940, now seen corresponding path program 1 times [2023-11-29 04:28:58,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:28:58,018 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [216096008] [2023-11-29 04:28:58,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:28:58,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:28:58,026 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:28:58,026 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [470816008] [2023-11-29 04:28:58,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:28:58,026 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:28:58,026 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cc90d14-414a-4f0a-b477-597fd2c389d3/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:28:58,027 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cc90d14-414a-4f0a-b477-597fd2c389d3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:28:58,028 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cc90d14-414a-4f0a-b477-597fd2c389d3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-11-29 04:28:58,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:28:58,088 INFO L262 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 04:28:58,091 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:28:58,379 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-11-29 04:28:58,380 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:28:58,551 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-11-29 04:28:58,552 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:28:58,552 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [216096008] [2023-11-29 04:28:58,552 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:28:58,552 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [470816008] [2023-11-29 04:28:58,552 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [470816008] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 04:28:58,552 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 04:28:58,552 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2023-11-29 04:28:58,552 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1961203413] [2023-11-29 04:28:58,553 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 04:28:58,553 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 04:28:58,553 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:28:58,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 04:28:58,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2023-11-29 04:28:58,554 INFO L87 Difference]: Start difference. First operand 417 states and 508 transitions. Second operand has 10 states, 9 states have (on average 14.444444444444445) internal successors, (130), 10 states have internal predecessors, (130), 4 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2023-11-29 04:28:59,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:28:59,435 INFO L93 Difference]: Finished difference Result 994 states and 1198 transitions. [2023-11-29 04:28:59,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-29 04:28:59,436 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 14.444444444444445) internal successors, (130), 10 states have internal predecessors, (130), 4 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) Word has length 92 [2023-11-29 04:28:59,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:28:59,440 INFO L225 Difference]: With dead ends: 994 [2023-11-29 04:28:59,440 INFO L226 Difference]: Without dead ends: 601 [2023-11-29 04:28:59,442 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 190 GetRequests, 174 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=119, Invalid=187, Unknown=0, NotChecked=0, Total=306 [2023-11-29 04:28:59,443 INFO L413 NwaCegarLoop]: 83 mSDtfsCounter, 1295 mSDsluCounter, 246 mSDsCounter, 0 mSdLazyCounter, 639 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1296 SdHoareTripleChecker+Valid, 329 SdHoareTripleChecker+Invalid, 697 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 639 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-29 04:28:59,444 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1296 Valid, 329 Invalid, 697 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 639 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-29 04:28:59,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 601 states. [2023-11-29 04:28:59,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 601 to 542. [2023-11-29 04:28:59,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 542 states, 476 states have (on average 1.3025210084033614) internal successors, (620), 517 states have internal predecessors, (620), 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 04:28:59,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 542 states to 542 states and 664 transitions. [2023-11-29 04:28:59,484 INFO L78 Accepts]: Start accepts. Automaton has 542 states and 664 transitions. Word has length 92 [2023-11-29 04:28:59,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:28:59,484 INFO L495 AbstractCegarLoop]: Abstraction has 542 states and 664 transitions. [2023-11-29 04:28:59,484 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 14.444444444444445) internal successors, (130), 10 states have internal predecessors, (130), 4 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2023-11-29 04:28:59,484 INFO L276 IsEmpty]: Start isEmpty. Operand 542 states and 664 transitions. [2023-11-29 04:28:59,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-11-29 04:28:59,485 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:28:59,485 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-11-29 04:28:59,491 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cc90d14-414a-4f0a-b477-597fd2c389d3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2023-11-29 04:28:59,686 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cc90d14-414a-4f0a-b477-597fd2c389d3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2023-11-29 04:28:59,686 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 89 more)] === [2023-11-29 04:28:59,687 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:28:59,687 INFO L85 PathProgramCache]: Analyzing trace with hash -1846751163, now seen corresponding path program 1 times [2023-11-29 04:28:59,687 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:28:59,687 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1442150659] [2023-11-29 04:28:59,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:28:59,687 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:28:59,698 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:28:59,699 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [398534874] [2023-11-29 04:28:59,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:28:59,699 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:28:59,699 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cc90d14-414a-4f0a-b477-597fd2c389d3/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:28:59,700 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cc90d14-414a-4f0a-b477-597fd2c389d3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:28:59,701 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cc90d14-414a-4f0a-b477-597fd2c389d3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-11-29 04:28:59,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:28:59,769 INFO L262 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 04:28:59,771 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:29:06,839 WARN L876 $PredicateComparison]: unable to prove that (exists ((|ULTIMATE.start_main_~R~0#1| Int)) (let ((.cse0 (* |ULTIMATE.start_main_~R~0#1| |ULTIMATE.start_main_~R~0#1|))) (and (<= (+ |c_ULTIMATE.start_main_~r~0#1| |c_ULTIMATE.start_main_~A~0#1| 1) .cse0) (<= .cse0 9223372036854775807)))) is different from true [2023-11-29 04:29:06,865 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 3 not checked. [2023-11-29 04:29:06,865 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:29:07,004 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-11-29 04:29:07,004 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:29:07,004 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1442150659] [2023-11-29 04:29:07,004 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:29:07,004 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [398534874] [2023-11-29 04:29:07,004 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [398534874] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 04:29:07,004 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 04:29:07,005 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2023-11-29 04:29:07,005 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [932795421] [2023-11-29 04:29:07,005 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 04:29:07,005 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 04:29:07,006 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:29:07,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 04:29:07,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=48, Unknown=3, NotChecked=14, Total=90 [2023-11-29 04:29:07,007 INFO L87 Difference]: Start difference. First operand 542 states and 664 transitions. Second operand has 10 states, 9 states have (on average 13.444444444444445) internal successors, (121), 10 states have internal predecessors, (121), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-11-29 04:29:15,220 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 04:29:26,668 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.34s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 04:29:28,918 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.24s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 04:29:34,381 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 04:29:38,385 WARN L539 Checker$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 04:29:41,756 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.37s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 04:29:45,761 WARN L539 Checker$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 04:29:48,030 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.26s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 04:29:52,957 WARN L539 Checker$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 04:29:56,966 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 04:30:00,342 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.38s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 04:30:05,751 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 04:30:06,882 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 04:30:10,893 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 04:30:13,223 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.33s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 04:30:17,228 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 04:30:22,920 WARN L539 Checker$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 04:30:26,925 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 04:30:29,398 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.47s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 04:30:31,777 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.37s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 04:30:34,223 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.44s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 04:30:38,974 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 04:30:42,831 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.86s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 04:30:46,838 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 04:30:50,841 WARN L539 Checker$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 04:30:54,865 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 04:30:59,674 WARN L539 Checker$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 04:31:03,679 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 04:31:05,505 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.82s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 04:31:09,512 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 04:31:12,067 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.55s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 04:31:13,366 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 04:31:14,719 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 04:31:18,735 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 04:31:22,740 WARN L539 Checker$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 04:31:26,561 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.37s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 04:31:31,686 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.61s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 04:31:35,581 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.41s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 04:31:39,588 WARN L539 Checker$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 04:31:41,985 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.40s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 04:31:44,340 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.35s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 04:31:47,834 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.49s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 04:31:51,854 WARN L539 Checker$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 04:31:55,289 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.44s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 04:31:59,300 WARN L539 Checker$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 04:32:03,303 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 04:32:05,656 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.35s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 04:32:09,663 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 04:32:14,382 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 04:32:18,388 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 04:32:22,392 WARN L539 Checker$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 04:32:25,186 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.78s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 04:32:27,982 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.79s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 04:32:32,781 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 04:32:36,786 WARN L539 Checker$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 04:32:40,790 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 04:32:44,796 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 04:32:48,804 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 04:32:52,823 WARN L539 Checker$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 04:32:55,673 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.85s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 04:32:59,678 WARN L539 Checker$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 04:33:03,684 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 04:33:07,688 WARN L539 Checker$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 04:33:08,915 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 04:33:10,069 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 04:33:14,073 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 04:33:18,078 WARN L539 Checker$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 04:33:20,450 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.37s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 04:33:22,057 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.61s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 04:33:26,761 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 04:33:31,482 WARN L539 Checker$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 04:33:35,485 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 04:33:39,514 WARN L539 Checker$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 04:33:43,518 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 04:33:47,521 WARN L539 Checker$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 04:33:51,525 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 04:33:53,811 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.28s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 04:33:57,816 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 04:34:02,153 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.51s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 04:34:04,687 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.53s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 04:34:09,390 WARN L539 Checker$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 04:34:13,393 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 04:34:13,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:34:13,424 INFO L93 Difference]: Finished difference Result 574 states and 670 transitions. [2023-11-29 04:34:13,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 04:34:13,425 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 13.444444444444445) internal successors, (121), 10 states have internal predecessors, (121), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 93 [2023-11-29 04:34:13,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:34:13,428 INFO L225 Difference]: With dead ends: 574 [2023-11-29 04:34:13,428 INFO L226 Difference]: Without dead ends: 571 [2023-11-29 04:34:13,429 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 187 GetRequests, 176 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 19.8s TimeCoverageRelationStatistics Valid=54, Invalid=75, Unknown=7, NotChecked=20, Total=156 [2023-11-29 04:34:13,429 INFO L413 NwaCegarLoop]: 62 mSDtfsCounter, 527 mSDsluCounter, 126 mSDsCounter, 0 mSdLazyCounter, 177 mSolverCounterSat, 27 mSolverCounterUnsat, 104 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 293.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 527 SdHoareTripleChecker+Valid, 188 SdHoareTripleChecker+Invalid, 589 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 177 IncrementalHoareTripleChecker+Invalid, 104 IncrementalHoareTripleChecker+Unknown, 281 IncrementalHoareTripleChecker+Unchecked, 293.2s IncrementalHoareTripleChecker+Time [2023-11-29 04:34:13,430 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [527 Valid, 188 Invalid, 589 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 177 Invalid, 104 Unknown, 281 Unchecked, 293.2s Time] [2023-11-29 04:34:13,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 571 states. [2023-11-29 04:34:13,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 571 to 541. [2023-11-29 04:34:13,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 541 states, 477 states have (on average 1.278825995807128) internal successors, (610), 516 states have internal predecessors, (610), 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 04:34:13,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 541 states to 541 states and 654 transitions. [2023-11-29 04:34:13,482 INFO L78 Accepts]: Start accepts. Automaton has 541 states and 654 transitions. Word has length 93 [2023-11-29 04:34:13,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:34:13,482 INFO L495 AbstractCegarLoop]: Abstraction has 541 states and 654 transitions. [2023-11-29 04:34:13,482 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 13.444444444444445) internal successors, (121), 10 states have internal predecessors, (121), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-11-29 04:34:13,483 INFO L276 IsEmpty]: Start isEmpty. Operand 541 states and 654 transitions. [2023-11-29 04:34:13,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2023-11-29 04:34:13,484 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:34:13,484 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 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, 1] [2023-11-29 04:34:13,489 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cc90d14-414a-4f0a-b477-597fd2c389d3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2023-11-29 04:34:13,684 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cc90d14-414a-4f0a-b477-597fd2c389d3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2023-11-29 04:34:13,685 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 89 more)] === [2023-11-29 04:34:13,685 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:34:13,685 INFO L85 PathProgramCache]: Analyzing trace with hash -906370201, now seen corresponding path program 1 times [2023-11-29 04:34:13,685 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:34:13,686 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [453497683] [2023-11-29 04:34:13,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:34:13,686 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:34:13,694 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:34:13,694 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1442892033] [2023-11-29 04:34:13,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:34:13,694 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:34:13,695 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cc90d14-414a-4f0a-b477-597fd2c389d3/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:34:13,695 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cc90d14-414a-4f0a-b477-597fd2c389d3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:34:13,698 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cc90d14-414a-4f0a-b477-597fd2c389d3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-11-29 04:34:13,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:34:13,757 INFO L262 TraceCheckSpWp]: Trace formula consists of 152 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 04:34:13,758 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:34:13,922 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-11-29 04:34:13,922 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:34:14,037 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-11-29 04:34:14,037 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:34:14,037 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [453497683] [2023-11-29 04:34:14,037 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:34:14,037 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1442892033] [2023-11-29 04:34:14,038 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1442892033] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 04:34:14,038 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 04:34:14,038 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2023-11-29 04:34:14,038 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [704563208] [2023-11-29 04:34:14,038 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 04:34:14,039 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 04:34:14,039 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:34:14,039 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 04:34:14,040 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2023-11-29 04:34:14,040 INFO L87 Difference]: Start difference. First operand 541 states and 654 transitions. Second operand has 8 states, 7 states have (on average 17.857142857142858) internal successors, (125), 8 states have internal predecessors, (125), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-11-29 04:34:14,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:34:14,402 INFO L93 Difference]: Finished difference Result 674 states and 804 transitions. [2023-11-29 04:34:14,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 04:34:14,403 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 17.857142857142858) internal successors, (125), 8 states have internal predecessors, (125), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 95 [2023-11-29 04:34:14,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:34:14,407 INFO L225 Difference]: With dead ends: 674 [2023-11-29 04:34:14,407 INFO L226 Difference]: Without dead ends: 671 [2023-11-29 04:34:14,407 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 189 GetRequests, 182 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-11-29 04:34:14,408 INFO L413 NwaCegarLoop]: 87 mSDtfsCounter, 460 mSDsluCounter, 189 mSDsCounter, 0 mSdLazyCounter, 297 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 461 SdHoareTripleChecker+Valid, 276 SdHoareTripleChecker+Invalid, 319 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 297 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 04:34:14,408 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [461 Valid, 276 Invalid, 319 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 297 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 04:34:14,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 671 states. [2023-11-29 04:34:14,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 671 to 541. [2023-11-29 04:34:14,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 541 states, 479 states have (on average 1.2567849686847599) internal successors, (602), 516 states have internal predecessors, (602), 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 04:34:14,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 541 states to 541 states and 646 transitions. [2023-11-29 04:34:14,459 INFO L78 Accepts]: Start accepts. Automaton has 541 states and 646 transitions. Word has length 95 [2023-11-29 04:34:14,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:34:14,460 INFO L495 AbstractCegarLoop]: Abstraction has 541 states and 646 transitions. [2023-11-29 04:34:14,460 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 17.857142857142858) internal successors, (125), 8 states have internal predecessors, (125), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-11-29 04:34:14,460 INFO L276 IsEmpty]: Start isEmpty. Operand 541 states and 646 transitions. [2023-11-29 04:34:14,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-11-29 04:34:14,461 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:34:14,461 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 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 04:34:14,466 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cc90d14-414a-4f0a-b477-597fd2c389d3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2023-11-29 04:34:14,661 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cc90d14-414a-4f0a-b477-597fd2c389d3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2023-11-29 04:34:14,662 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr39ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 89 more)] === [2023-11-29 04:34:14,662 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:34:14,662 INFO L85 PathProgramCache]: Analyzing trace with hash -1438955093, now seen corresponding path program 1 times [2023-11-29 04:34:14,662 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:34:14,662 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [115003955] [2023-11-29 04:34:14,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:34:14,663 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:34:14,673 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:34:14,673 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1024389035] [2023-11-29 04:34:14,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:34:14,673 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:34:14,673 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cc90d14-414a-4f0a-b477-597fd2c389d3/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:34:14,675 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cc90d14-414a-4f0a-b477-597fd2c389d3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:34:14,677 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cc90d14-414a-4f0a-b477-597fd2c389d3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-11-29 04:34:14,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:34:14,735 INFO L262 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 04:34:14,738 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:34:14,821 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-11-29 04:34:14,821 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:34:14,967 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-11-29 04:34:14,967 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:34:14,967 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [115003955] [2023-11-29 04:34:14,967 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:34:14,967 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1024389035] [2023-11-29 04:34:14,967 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1024389035] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 04:34:14,967 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 04:34:14,967 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2023-11-29 04:34:14,967 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [963499110] [2023-11-29 04:34:14,968 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 04:34:14,968 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 04:34:14,968 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:34:14,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 04:34:14,969 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-11-29 04:34:14,969 INFO L87 Difference]: Start difference. First operand 541 states and 646 transitions. Second operand has 6 states, 5 states have (on average 26.6) internal successors, (133), 6 states have internal predecessors, (133), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-11-29 04:34:15,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:34:15,463 INFO L93 Difference]: Finished difference Result 1041 states and 1272 transitions. [2023-11-29 04:34:15,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 04:34:15,463 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 26.6) internal successors, (133), 6 states have internal predecessors, (133), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 99 [2023-11-29 04:34:15,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:34:15,468 INFO L225 Difference]: With dead ends: 1041 [2023-11-29 04:34:15,468 INFO L226 Difference]: Without dead ends: 1005 [2023-11-29 04:34:15,469 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 197 GetRequests, 192 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2023-11-29 04:34:15,469 INFO L413 NwaCegarLoop]: 131 mSDtfsCounter, 493 mSDsluCounter, 225 mSDsCounter, 0 mSdLazyCounter, 296 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 500 SdHoareTripleChecker+Valid, 356 SdHoareTripleChecker+Invalid, 360 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 296 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-29 04:34:15,469 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [500 Valid, 356 Invalid, 360 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 296 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-29 04:34:15,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1005 states. [2023-11-29 04:34:15,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1005 to 915. [2023-11-29 04:34:15,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 915 states, 853 states have (on average 1.1582649472450175) internal successors, (988), 874 states have internal predecessors, (988), 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 04:34:15,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 915 states to 915 states and 1064 transitions. [2023-11-29 04:34:15,588 INFO L78 Accepts]: Start accepts. Automaton has 915 states and 1064 transitions. Word has length 99 [2023-11-29 04:34:15,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:34:15,588 INFO L495 AbstractCegarLoop]: Abstraction has 915 states and 1064 transitions. [2023-11-29 04:34:15,589 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 26.6) internal successors, (133), 6 states have internal predecessors, (133), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-11-29 04:34:15,589 INFO L276 IsEmpty]: Start isEmpty. Operand 915 states and 1064 transitions. [2023-11-29 04:34:15,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2023-11-29 04:34:15,590 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:34:15,590 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 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, 1, 1, 1, 1, 1, 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 04:34:15,596 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cc90d14-414a-4f0a-b477-597fd2c389d3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2023-11-29 04:34:15,791 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cc90d14-414a-4f0a-b477-597fd2c389d3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2023-11-29 04:34:15,791 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr72ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 89 more)] === [2023-11-29 04:34:15,792 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:34:15,792 INFO L85 PathProgramCache]: Analyzing trace with hash -77579207, now seen corresponding path program 1 times [2023-11-29 04:34:15,792 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:34:15,792 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1833638681] [2023-11-29 04:34:15,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:34:15,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:34:15,801 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:34:15,801 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1674254783] [2023-11-29 04:34:15,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:34:15,801 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:34:15,801 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cc90d14-414a-4f0a-b477-597fd2c389d3/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:34:15,802 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cc90d14-414a-4f0a-b477-597fd2c389d3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:34:15,803 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cc90d14-414a-4f0a-b477-597fd2c389d3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2023-11-29 04:34:15,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:34:15,870 INFO L262 TraceCheckSpWp]: Trace formula consists of 169 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 04:34:15,872 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:34:16,184 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-11-29 04:34:16,184 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 04:34:16,184 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:34:16,184 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1833638681] [2023-11-29 04:34:16,185 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:34:16,185 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1674254783] [2023-11-29 04:34:16,185 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1674254783] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:34:16,185 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:34:16,185 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 04:34:16,185 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1260058744] [2023-11-29 04:34:16,185 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:34:16,186 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 04:34:16,186 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:34:16,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 04:34:16,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-29 04:34:16,187 INFO L87 Difference]: Start difference. First operand 915 states and 1064 transitions. Second operand has 6 states, 5 states have (on average 16.6) internal successors, (83), 6 states have internal predecessors, (83), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2023-11-29 04:34:16,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:34:16,483 INFO L93 Difference]: Finished difference Result 924 states and 1072 transitions. [2023-11-29 04:34:16,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 04:34:16,483 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 16.6) internal successors, (83), 6 states have internal predecessors, (83), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 112 [2023-11-29 04:34:16,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:34:16,489 INFO L225 Difference]: With dead ends: 924 [2023-11-29 04:34:16,489 INFO L226 Difference]: Without dead ends: 923 [2023-11-29 04:34:16,490 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2023-11-29 04:34:16,490 INFO L413 NwaCegarLoop]: 43 mSDtfsCounter, 272 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 142 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 272 SdHoareTripleChecker+Valid, 92 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 142 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 04:34:16,491 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [272 Valid, 92 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 142 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 04:34:16,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 923 states. [2023-11-29 04:34:16,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 923 to 914. [2023-11-29 04:34:16,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 914 states, 853 states have (on average 1.1512309495896835) internal successors, (982), 873 states have internal predecessors, (982), 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 04:34:16,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 914 states to 914 states and 1058 transitions. [2023-11-29 04:34:16,616 INFO L78 Accepts]: Start accepts. Automaton has 914 states and 1058 transitions. Word has length 112 [2023-11-29 04:34:16,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:34:16,617 INFO L495 AbstractCegarLoop]: Abstraction has 914 states and 1058 transitions. [2023-11-29 04:34:16,617 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 16.6) internal successors, (83), 6 states have internal predecessors, (83), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2023-11-29 04:34:16,617 INFO L276 IsEmpty]: Start isEmpty. Operand 914 states and 1058 transitions. [2023-11-29 04:34:16,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2023-11-29 04:34:16,619 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:34:16,619 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 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 04:34:16,625 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cc90d14-414a-4f0a-b477-597fd2c389d3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2023-11-29 04:34:16,819 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cc90d14-414a-4f0a-b477-597fd2c389d3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2023-11-29 04:34:16,820 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr73ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 89 more)] === [2023-11-29 04:34:16,820 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:34:16,820 INFO L85 PathProgramCache]: Analyzing trace with hash 1890012111, now seen corresponding path program 1 times [2023-11-29 04:34:16,820 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:34:16,821 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [867691734] [2023-11-29 04:34:16,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:34:16,821 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:34:16,832 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:34:16,832 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1564614209] [2023-11-29 04:34:16,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:34:16,833 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:34:16,833 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cc90d14-414a-4f0a-b477-597fd2c389d3/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:34:16,834 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cc90d14-414a-4f0a-b477-597fd2c389d3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:34:16,835 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cc90d14-414a-4f0a-b477-597fd2c389d3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2023-11-29 04:34:16,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:34:16,905 INFO L262 TraceCheckSpWp]: Trace formula consists of 170 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 04:34:16,908 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:34:17,030 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-11-29 04:34:17,030 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 04:34:17,030 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:34:17,030 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [867691734] [2023-11-29 04:34:17,030 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:34:17,030 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1564614209] [2023-11-29 04:34:17,030 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1564614209] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:34:17,031 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:34:17,031 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 04:34:17,031 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1378772412] [2023-11-29 04:34:17,031 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:34:17,031 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 04:34:17,031 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:34:17,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 04:34:17,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-29 04:34:17,032 INFO L87 Difference]: Start difference. First operand 914 states and 1058 transitions. Second operand has 5 states, 4 states have (on average 21.0) internal successors, (84), 5 states have internal predecessors, (84), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2023-11-29 04:34:17,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:34:17,257 INFO L93 Difference]: Finished difference Result 919 states and 1062 transitions. [2023-11-29 04:34:17,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 04:34:17,258 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 21.0) internal successors, (84), 5 states have internal predecessors, (84), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 113 [2023-11-29 04:34:17,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:34:17,263 INFO L225 Difference]: With dead ends: 919 [2023-11-29 04:34:17,263 INFO L226 Difference]: Without dead ends: 918 [2023-11-29 04:34:17,263 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 109 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-11-29 04:34:17,264 INFO L413 NwaCegarLoop]: 73 mSDtfsCounter, 158 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 167 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 138 SdHoareTripleChecker+Invalid, 171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 167 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 04:34:17,264 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [158 Valid, 138 Invalid, 171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 167 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 04:34:17,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 918 states. [2023-11-29 04:34:17,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 918 to 913. [2023-11-29 04:34:17,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 913 states, 853 states have (on average 1.1441969519343493) internal successors, (976), 872 states have internal predecessors, (976), 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 04:34:17,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 913 states to 913 states and 1052 transitions. [2023-11-29 04:34:17,371 INFO L78 Accepts]: Start accepts. Automaton has 913 states and 1052 transitions. Word has length 113 [2023-11-29 04:34:17,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:34:17,371 INFO L495 AbstractCegarLoop]: Abstraction has 913 states and 1052 transitions. [2023-11-29 04:34:17,371 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 21.0) internal successors, (84), 5 states have internal predecessors, (84), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2023-11-29 04:34:17,371 INFO L276 IsEmpty]: Start isEmpty. Operand 913 states and 1052 transitions. [2023-11-29 04:34:17,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2023-11-29 04:34:17,373 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:34:17,373 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:34:17,379 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cc90d14-414a-4f0a-b477-597fd2c389d3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2023-11-29 04:34:17,573 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cc90d14-414a-4f0a-b477-597fd2c389d3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:34:17,574 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr50ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 89 more)] === [2023-11-29 04:34:17,574 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:34:17,574 INFO L85 PathProgramCache]: Analyzing trace with hash 836936856, now seen corresponding path program 1 times [2023-11-29 04:34:17,574 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:34:17,575 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1933638655] [2023-11-29 04:34:17,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:34:17,575 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:34:17,587 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:34:17,587 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1145886273] [2023-11-29 04:34:17,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:34:17,588 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:34:17,588 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cc90d14-414a-4f0a-b477-597fd2c389d3/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:34:17,589 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cc90d14-414a-4f0a-b477-597fd2c389d3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:34:17,590 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cc90d14-414a-4f0a-b477-597fd2c389d3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2023-11-29 04:34:17,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:34:17,658 INFO L262 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 04:34:17,660 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:34:17,745 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-11-29 04:34:17,745 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:34:17,869 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-11-29 04:34:17,869 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:34:17,869 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1933638655] [2023-11-29 04:34:17,869 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:34:17,870 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1145886273] [2023-11-29 04:34:17,870 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1145886273] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 04:34:17,870 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 04:34:17,870 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2023-11-29 04:34:17,870 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [837444327] [2023-11-29 04:34:17,870 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 04:34:17,871 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 04:34:17,871 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:34:17,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 04:34:17,872 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2023-11-29 04:34:17,872 INFO L87 Difference]: Start difference. First operand 913 states and 1052 transitions. Second operand has 8 states, 7 states have (on average 22.428571428571427) internal successors, (157), 8 states have internal predecessors, (157), 5 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 5 states have call predecessors, (10), 5 states have call successors, (10) [2023-11-29 04:34:18,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:34:18,466 INFO L93 Difference]: Finished difference Result 1045 states and 1164 transitions. [2023-11-29 04:34:18,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-29 04:34:18,466 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 22.428571428571427) internal successors, (157), 8 states have internal predecessors, (157), 5 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 5 states have call predecessors, (10), 5 states have call successors, (10) Word has length 116 [2023-11-29 04:34:18,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:34:18,472 INFO L225 Difference]: With dead ends: 1045 [2023-11-29 04:34:18,472 INFO L226 Difference]: Without dead ends: 1044 [2023-11-29 04:34:18,473 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 234 GetRequests, 224 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2023-11-29 04:34:18,473 INFO L413 NwaCegarLoop]: 104 mSDtfsCounter, 516 mSDsluCounter, 248 mSDsCounter, 0 mSdLazyCounter, 507 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 519 SdHoareTripleChecker+Valid, 352 SdHoareTripleChecker+Invalid, 525 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 507 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-29 04:34:18,474 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [519 Valid, 352 Invalid, 525 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 507 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-29 04:34:18,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1044 states. [2023-11-29 04:34:18,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1044 to 912. [2023-11-29 04:34:18,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 912 states, 853 states have (on average 1.1371629542790151) internal successors, (970), 871 states have internal predecessors, (970), 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 04:34:18,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 912 states to 912 states and 1046 transitions. [2023-11-29 04:34:18,543 INFO L78 Accepts]: Start accepts. Automaton has 912 states and 1046 transitions. Word has length 116 [2023-11-29 04:34:18,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:34:18,544 INFO L495 AbstractCegarLoop]: Abstraction has 912 states and 1046 transitions. [2023-11-29 04:34:18,544 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 22.428571428571427) internal successors, (157), 8 states have internal predecessors, (157), 5 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 5 states have call predecessors, (10), 5 states have call successors, (10) [2023-11-29 04:34:18,544 INFO L276 IsEmpty]: Start isEmpty. Operand 912 states and 1046 transitions. [2023-11-29 04:34:18,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2023-11-29 04:34:18,545 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:34:18,545 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:34:18,550 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cc90d14-414a-4f0a-b477-597fd2c389d3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2023-11-29 04:34:18,746 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cc90d14-414a-4f0a-b477-597fd2c389d3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:34:18,746 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr54ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 89 more)] === [2023-11-29 04:34:18,746 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:34:18,747 INFO L85 PathProgramCache]: Analyzing trace with hash -237193133, now seen corresponding path program 1 times [2023-11-29 04:34:18,747 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:34:18,747 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [983708872] [2023-11-29 04:34:18,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:34:18,747 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:34:18,759 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:34:18,759 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1487955370] [2023-11-29 04:34:18,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:34:18,760 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:34:18,760 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cc90d14-414a-4f0a-b477-597fd2c389d3/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:34:18,761 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cc90d14-414a-4f0a-b477-597fd2c389d3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:34:18,764 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cc90d14-414a-4f0a-b477-597fd2c389d3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2023-11-29 04:34:18,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:34:18,828 INFO L262 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 04:34:18,830 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:34:19,143 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-11-29 04:34:19,143 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:34:19,298 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-11-29 04:34:19,298 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:34:19,298 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [983708872] [2023-11-29 04:34:19,298 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:34:19,298 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1487955370] [2023-11-29 04:34:19,298 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1487955370] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 04:34:19,298 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 04:34:19,298 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2023-11-29 04:34:19,299 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [523593215] [2023-11-29 04:34:19,299 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 04:34:19,299 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 04:34:19,299 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:34:19,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 04:34:19,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2023-11-29 04:34:19,300 INFO L87 Difference]: Start difference. First operand 912 states and 1046 transitions. Second operand has 10 states, 9 states have (on average 18.77777777777778) internal successors, (169), 10 states have internal predecessors, (169), 5 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 5 states have call predecessors, (13), 5 states have call successors, (13) [2023-11-29 04:34:19,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:34:19,583 INFO L93 Difference]: Finished difference Result 921 states and 1054 transitions. [2023-11-29 04:34:19,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 04:34:19,584 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 18.77777777777778) internal successors, (169), 10 states have internal predecessors, (169), 5 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 5 states have call predecessors, (13), 5 states have call successors, (13) Word has length 117 [2023-11-29 04:34:19,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:34:19,588 INFO L225 Difference]: With dead ends: 921 [2023-11-29 04:34:19,588 INFO L226 Difference]: Without dead ends: 919 [2023-11-29 04:34:19,589 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 236 GetRequests, 224 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2023-11-29 04:34:19,589 INFO L413 NwaCegarLoop]: 43 mSDtfsCounter, 250 mSDsluCounter, 128 mSDsCounter, 0 mSdLazyCounter, 176 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 250 SdHoareTripleChecker+Valid, 171 SdHoareTripleChecker+Invalid, 190 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 176 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 04:34:19,590 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [250 Valid, 171 Invalid, 190 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 176 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 04:34:19,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 919 states. [2023-11-29 04:34:19,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 919 to 911. [2023-11-29 04:34:19,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 911 states, 853 states have (on average 1.1254396248534584) internal successors, (960), 870 states have internal predecessors, (960), 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 04:34:19,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 911 states to 911 states and 1036 transitions. [2023-11-29 04:34:19,660 INFO L78 Accepts]: Start accepts. Automaton has 911 states and 1036 transitions. Word has length 117 [2023-11-29 04:34:19,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:34:19,660 INFO L495 AbstractCegarLoop]: Abstraction has 911 states and 1036 transitions. [2023-11-29 04:34:19,660 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 18.77777777777778) internal successors, (169), 10 states have internal predecessors, (169), 5 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 5 states have call predecessors, (13), 5 states have call successors, (13) [2023-11-29 04:34:19,661 INFO L276 IsEmpty]: Start isEmpty. Operand 911 states and 1036 transitions. [2023-11-29 04:34:19,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2023-11-29 04:34:19,661 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:34:19,662 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:34:19,666 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cc90d14-414a-4f0a-b477-597fd2c389d3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2023-11-29 04:34:19,862 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cc90d14-414a-4f0a-b477-597fd2c389d3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2023-11-29 04:34:19,862 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr55ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 89 more)] === [2023-11-29 04:34:19,863 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:34:19,863 INFO L85 PathProgramCache]: Analyzing trace with hash 1236947659, now seen corresponding path program 1 times [2023-11-29 04:34:19,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:34:19,863 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [885550817] [2023-11-29 04:34:19,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:34:19,863 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:34:19,874 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:34:19,874 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [817972950] [2023-11-29 04:34:19,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:34:19,875 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:34:19,875 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cc90d14-414a-4f0a-b477-597fd2c389d3/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:34:19,876 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cc90d14-414a-4f0a-b477-597fd2c389d3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:34:19,879 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cc90d14-414a-4f0a-b477-597fd2c389d3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2023-11-29 04:34:19,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:34:19,948 INFO L262 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-29 04:34:19,951 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:34:20,292 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-11-29 04:34:20,292 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:34:20,514 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-11-29 04:34:20,514 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:34:20,514 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [885550817] [2023-11-29 04:34:20,514 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:34:20,514 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [817972950] [2023-11-29 04:34:20,514 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [817972950] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 04:34:20,514 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 04:34:20,515 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2023-11-29 04:34:20,515 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [719722210] [2023-11-29 04:34:20,515 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 04:34:20,515 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 04:34:20,516 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:34:20,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 04:34:20,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2023-11-29 04:34:20,517 INFO L87 Difference]: Start difference. First operand 911 states and 1036 transitions. Second operand has 12 states, 11 states have (on average 15.636363636363637) internal successors, (172), 12 states have internal predecessors, (172), 6 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 6 states have call predecessors, (14), 6 states have call successors, (14) [2023-11-29 04:34:20,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:34:20,985 INFO L93 Difference]: Finished difference Result 974 states and 1102 transitions. [2023-11-29 04:34:20,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-29 04:34:20,985 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 15.636363636363637) internal successors, (172), 12 states have internal predecessors, (172), 6 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 6 states have call predecessors, (14), 6 states have call successors, (14) Word has length 118 [2023-11-29 04:34:20,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:34:20,990 INFO L225 Difference]: With dead ends: 974 [2023-11-29 04:34:20,990 INFO L226 Difference]: Without dead ends: 972 [2023-11-29 04:34:20,991 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 240 GetRequests, 224 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=110, Invalid=196, Unknown=0, NotChecked=0, Total=306 [2023-11-29 04:34:20,992 INFO L413 NwaCegarLoop]: 57 mSDtfsCounter, 404 mSDsluCounter, 181 mSDsCounter, 0 mSdLazyCounter, 354 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 404 SdHoareTripleChecker+Valid, 238 SdHoareTripleChecker+Invalid, 376 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 354 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 04:34:20,992 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [404 Valid, 238 Invalid, 376 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 354 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 04:34:20,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 972 states. [2023-11-29 04:34:21,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 972 to 907. [2023-11-29 04:34:21,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 907 states, 851 states have (on average 1.1116333725029377) internal successors, (946), 866 states have internal predecessors, (946), 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 04:34:21,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 907 states to 907 states and 1022 transitions. [2023-11-29 04:34:21,093 INFO L78 Accepts]: Start accepts. Automaton has 907 states and 1022 transitions. Word has length 118 [2023-11-29 04:34:21,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:34:21,094 INFO L495 AbstractCegarLoop]: Abstraction has 907 states and 1022 transitions. [2023-11-29 04:34:21,094 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 15.636363636363637) internal successors, (172), 12 states have internal predecessors, (172), 6 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 6 states have call predecessors, (14), 6 states have call successors, (14) [2023-11-29 04:34:21,094 INFO L276 IsEmpty]: Start isEmpty. Operand 907 states and 1022 transitions. [2023-11-29 04:34:21,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2023-11-29 04:34:21,095 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:34:21,095 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:34:21,101 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cc90d14-414a-4f0a-b477-597fd2c389d3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2023-11-29 04:34:21,296 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cc90d14-414a-4f0a-b477-597fd2c389d3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2023-11-29 04:34:21,296 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr56ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 89 more)] === [2023-11-29 04:34:21,296 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:34:21,296 INFO L85 PathProgramCache]: Analyzing trace with hash -309328043, now seen corresponding path program 1 times [2023-11-29 04:34:21,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:34:21,297 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1478638556] [2023-11-29 04:34:21,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:34:21,297 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:34:21,305 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:34:21,305 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [670130508] [2023-11-29 04:34:21,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:34:21,305 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:34:21,306 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cc90d14-414a-4f0a-b477-597fd2c389d3/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:34:21,307 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cc90d14-414a-4f0a-b477-597fd2c389d3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:34:21,308 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cc90d14-414a-4f0a-b477-597fd2c389d3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2023-11-29 04:34:21,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:34:21,369 INFO L262 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-29 04:34:21,371 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:34:21,614 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 3 proven. 10 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2023-11-29 04:34:21,614 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:34:21,784 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 3 proven. 10 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2023-11-29 04:34:21,784 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:34:21,784 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1478638556] [2023-11-29 04:34:21,784 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:34:21,784 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [670130508] [2023-11-29 04:34:21,784 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [670130508] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 04:34:21,784 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 04:34:21,784 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2023-11-29 04:34:21,785 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [392456311] [2023-11-29 04:34:21,785 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 04:34:21,785 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-29 04:34:21,785 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:34:21,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-29 04:34:21,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2023-11-29 04:34:21,787 INFO L87 Difference]: Start difference. First operand 907 states and 1022 transitions. Second operand has 13 states, 12 states have (on average 14.75) internal successors, (177), 13 states have internal predecessors, (177), 5 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (13), 5 states have call predecessors, (13), 5 states have call successors, (13) [2023-11-29 04:34:22,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:34:22,287 INFO L93 Difference]: Finished difference Result 1126 states and 1270 transitions. [2023-11-29 04:34:22,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 04:34:22,288 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 14.75) internal successors, (177), 13 states have internal predecessors, (177), 5 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (13), 5 states have call predecessors, (13), 5 states have call successors, (13) Word has length 119 [2023-11-29 04:34:22,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:34:22,292 INFO L225 Difference]: With dead ends: 1126 [2023-11-29 04:34:22,293 INFO L226 Difference]: Without dead ends: 1125 [2023-11-29 04:34:22,293 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 240 GetRequests, 225 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=65, Invalid=207, Unknown=0, NotChecked=0, Total=272 [2023-11-29 04:34:22,294 INFO L413 NwaCegarLoop]: 39 mSDtfsCounter, 725 mSDsluCounter, 139 mSDsCounter, 0 mSdLazyCounter, 388 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 725 SdHoareTripleChecker+Valid, 178 SdHoareTripleChecker+Invalid, 416 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 388 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 04:34:22,294 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [725 Valid, 178 Invalid, 416 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 388 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 04:34:22,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1125 states. [2023-11-29 04:34:22,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1125 to 898. [2023-11-29 04:34:22,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 898 states, 843 states have (on average 1.1055753262158956) internal successors, (932), 857 states have internal predecessors, (932), 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 04:34:22,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 898 states to 898 states and 1008 transitions. [2023-11-29 04:34:22,400 INFO L78 Accepts]: Start accepts. Automaton has 898 states and 1008 transitions. Word has length 119 [2023-11-29 04:34:22,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:34:22,400 INFO L495 AbstractCegarLoop]: Abstraction has 898 states and 1008 transitions. [2023-11-29 04:34:22,401 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 14.75) internal successors, (177), 13 states have internal predecessors, (177), 5 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (13), 5 states have call predecessors, (13), 5 states have call successors, (13) [2023-11-29 04:34:22,401 INFO L276 IsEmpty]: Start isEmpty. Operand 898 states and 1008 transitions. [2023-11-29 04:34:22,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2023-11-29 04:34:22,402 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:34:22,402 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:34:22,408 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cc90d14-414a-4f0a-b477-597fd2c389d3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Ended with exit code 0 [2023-11-29 04:34:22,602 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cc90d14-414a-4f0a-b477-597fd2c389d3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:34:22,603 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 89 more)] === [2023-11-29 04:34:22,603 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:34:22,603 INFO L85 PathProgramCache]: Analyzing trace with hash -1054062407, now seen corresponding path program 1 times [2023-11-29 04:34:22,603 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:34:22,603 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1511018901] [2023-11-29 04:34:22,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:34:22,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:34:22,615 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:34:22,616 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [992276720] [2023-11-29 04:34:22,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:34:22,616 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:34:22,616 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cc90d14-414a-4f0a-b477-597fd2c389d3/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:34:22,617 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cc90d14-414a-4f0a-b477-597fd2c389d3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:34:22,619 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cc90d14-414a-4f0a-b477-597fd2c389d3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2023-11-29 04:34:22,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:34:22,688 INFO L262 TraceCheckSpWp]: Trace formula consists of 188 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-29 04:34:22,690 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:34:22,977 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-11-29 04:34:22,977 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:34:23,148 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-11-29 04:34:23,148 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:34:23,148 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1511018901] [2023-11-29 04:34:23,148 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:34:23,148 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [992276720] [2023-11-29 04:34:23,149 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [992276720] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 04:34:23,149 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 04:34:23,149 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2023-11-29 04:34:23,149 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [588738272] [2023-11-29 04:34:23,149 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 04:34:23,150 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 04:34:23,150 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:34:23,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 04:34:23,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2023-11-29 04:34:23,151 INFO L87 Difference]: Start difference. First operand 898 states and 1008 transitions. Second operand has 12 states, 11 states have (on average 16.545454545454547) internal successors, (182), 12 states have internal predecessors, (182), 6 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 6 states have call predecessors, (14), 6 states have call successors, (14) [2023-11-29 04:34:23,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:34:23,952 INFO L93 Difference]: Finished difference Result 965 states and 1058 transitions. [2023-11-29 04:34:23,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-29 04:34:23,952 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 16.545454545454547) internal successors, (182), 12 states have internal predecessors, (182), 6 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 6 states have call predecessors, (14), 6 states have call successors, (14) Word has length 123 [2023-11-29 04:34:23,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:34:23,958 INFO L225 Difference]: With dead ends: 965 [2023-11-29 04:34:23,958 INFO L226 Difference]: Without dead ends: 964 [2023-11-29 04:34:23,958 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 253 GetRequests, 234 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 87 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=161, Invalid=259, Unknown=0, NotChecked=0, Total=420 [2023-11-29 04:34:23,959 INFO L413 NwaCegarLoop]: 83 mSDtfsCounter, 1394 mSDsluCounter, 248 mSDsCounter, 0 mSdLazyCounter, 531 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1394 SdHoareTripleChecker+Valid, 331 SdHoareTripleChecker+Invalid, 595 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 531 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-29 04:34:23,959 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1394 Valid, 331 Invalid, 595 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 531 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-29 04:34:23,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 964 states. [2023-11-29 04:34:24,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 964 to 897. [2023-11-29 04:34:24,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 897 states, 843 states have (on average 1.0984578884934757) internal successors, (926), 856 states have internal predecessors, (926), 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 04:34:24,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 897 states to 897 states and 1002 transitions. [2023-11-29 04:34:24,033 INFO L78 Accepts]: Start accepts. Automaton has 897 states and 1002 transitions. Word has length 123 [2023-11-29 04:34:24,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:34:24,034 INFO L495 AbstractCegarLoop]: Abstraction has 897 states and 1002 transitions. [2023-11-29 04:34:24,034 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 16.545454545454547) internal successors, (182), 12 states have internal predecessors, (182), 6 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 6 states have call predecessors, (14), 6 states have call successors, (14) [2023-11-29 04:34:24,034 INFO L276 IsEmpty]: Start isEmpty. Operand 897 states and 1002 transitions. [2023-11-29 04:34:24,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2023-11-29 04:34:24,035 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:34:24,035 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:34:24,039 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cc90d14-414a-4f0a-b477-597fd2c389d3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0 [2023-11-29 04:34:24,235 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cc90d14-414a-4f0a-b477-597fd2c389d3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:34:24,235 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr67ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 89 more)] === [2023-11-29 04:34:24,236 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:34:24,236 INFO L85 PathProgramCache]: Analyzing trace with hash 970228311, now seen corresponding path program 1 times [2023-11-29 04:34:24,236 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:34:24,236 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [478339010] [2023-11-29 04:34:24,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:34:24,236 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:34:24,245 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:34:24,245 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1099242886] [2023-11-29 04:34:24,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:34:24,245 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:34:24,245 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cc90d14-414a-4f0a-b477-597fd2c389d3/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:34:24,246 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cc90d14-414a-4f0a-b477-597fd2c389d3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:34:24,247 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cc90d14-414a-4f0a-b477-597fd2c389d3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2023-11-29 04:34:24,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:34:24,315 INFO L262 TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-29 04:34:24,317 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:34:24,470 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 18 proven. 6 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2023-11-29 04:34:24,470 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:34:30,035 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:34:30,035 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [478339010] [2023-11-29 04:34:30,035 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:34:30,035 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1099242886] [2023-11-29 04:34:30,035 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1099242886] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:34:30,035 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 04:34:30,035 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2023-11-29 04:34:30,035 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [861789795] [2023-11-29 04:34:30,036 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 04:34:30,036 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 04:34:30,036 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:34:30,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 04:34:30,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=80, Unknown=1, NotChecked=0, Total=110 [2023-11-29 04:34:30,037 INFO L87 Difference]: Start difference. First operand 897 states and 1002 transitions. Second operand has 8 states, 7 states have (on average 14.857142857142858) internal successors, (104), 8 states have internal predecessors, (104), 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 04:34:30,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:34:30,585 INFO L93 Difference]: Finished difference Result 923 states and 1023 transitions. [2023-11-29 04:34:30,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 04:34:30,585 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 14.857142857142858) internal successors, (104), 8 states have internal predecessors, (104), 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 130 [2023-11-29 04:34:30,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:34:30,591 INFO L225 Difference]: With dead ends: 923 [2023-11-29 04:34:30,591 INFO L226 Difference]: Without dead ends: 899 [2023-11-29 04:34:30,591 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 141 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 5.4s TimeCoverageRelationStatistics Valid=58, Invalid=151, Unknown=1, NotChecked=0, Total=210 [2023-11-29 04:34:30,592 INFO L413 NwaCegarLoop]: 87 mSDtfsCounter, 249 mSDsluCounter, 270 mSDsCounter, 0 mSdLazyCounter, 546 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 249 SdHoareTripleChecker+Valid, 357 SdHoareTripleChecker+Invalid, 561 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 546 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-29 04:34:30,592 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [249 Valid, 357 Invalid, 561 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 546 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-29 04:34:30,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 899 states. [2023-11-29 04:34:30,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 899 to 858. [2023-11-29 04:34:30,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 858 states, 812 states have (on average 1.0566502463054188) internal successors, (858), 817 states have internal predecessors, (858), 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 04:34:30,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 858 states to 858 states and 934 transitions. [2023-11-29 04:34:30,683 INFO L78 Accepts]: Start accepts. Automaton has 858 states and 934 transitions. Word has length 130 [2023-11-29 04:34:30,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:34:30,684 INFO L495 AbstractCegarLoop]: Abstraction has 858 states and 934 transitions. [2023-11-29 04:34:30,684 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 14.857142857142858) internal successors, (104), 8 states have internal predecessors, (104), 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 04:34:30,684 INFO L276 IsEmpty]: Start isEmpty. Operand 858 states and 934 transitions. [2023-11-29 04:34:30,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2023-11-29 04:34:30,685 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:34:30,685 INFO L195 NwaCegarLoop]: trace histogram [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, 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 04:34:30,690 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cc90d14-414a-4f0a-b477-597fd2c389d3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2023-11-29 04:34:30,885 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cc90d14-414a-4f0a-b477-597fd2c389d3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2023-11-29 04:34:30,886 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr48ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 89 more)] === [2023-11-29 04:34:30,886 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:34:30,886 INFO L85 PathProgramCache]: Analyzing trace with hash -1686870681, now seen corresponding path program 1 times [2023-11-29 04:34:30,886 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:34:30,886 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [948487736] [2023-11-29 04:34:30,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:34:30,887 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:34:30,896 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:34:30,896 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [119847424] [2023-11-29 04:34:30,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:34:30,896 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:34:30,896 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cc90d14-414a-4f0a-b477-597fd2c389d3/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:34:30,897 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cc90d14-414a-4f0a-b477-597fd2c389d3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:34:30,898 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cc90d14-414a-4f0a-b477-597fd2c389d3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2023-11-29 04:34:30,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:34:30,960 INFO L262 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 04:34:30,962 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:34:31,102 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 61 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-11-29 04:34:31,102 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 04:34:31,102 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:34:31,103 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [948487736] [2023-11-29 04:34:31,103 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:34:31,103 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [119847424] [2023-11-29 04:34:31,103 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [119847424] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:34:31,103 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:34:31,103 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 04:34:31,103 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [147995394] [2023-11-29 04:34:31,103 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:34:31,104 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 04:34:31,104 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:34:31,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 04:34:31,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-29 04:34:31,105 INFO L87 Difference]: Start difference. First operand 858 states and 934 transitions. Second operand has 6 states, 5 states have (on average 21.6) internal successors, (108), 6 states have internal predecessors, (108), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2023-11-29 04:34:31,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:34:31,417 INFO L93 Difference]: Finished difference Result 877 states and 952 transitions. [2023-11-29 04:34:31,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 04:34:31,418 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 21.6) internal successors, (108), 6 states have internal predecessors, (108), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 137 [2023-11-29 04:34:31,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:34:31,422 INFO L225 Difference]: With dead ends: 877 [2023-11-29 04:34:31,422 INFO L226 Difference]: Without dead ends: 858 [2023-11-29 04:34:31,422 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-29 04:34:31,423 INFO L413 NwaCegarLoop]: 146 mSDtfsCounter, 224 mSDsluCounter, 189 mSDsCounter, 0 mSdLazyCounter, 258 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 230 SdHoareTripleChecker+Valid, 335 SdHoareTripleChecker+Invalid, 266 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 258 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 04:34:31,423 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [230 Valid, 335 Invalid, 266 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 258 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 04:34:31,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 858 states. [2023-11-29 04:34:31,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 858 to 839. [2023-11-29 04:34:31,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 839 states, 797 states have (on average 1.027603513174404) internal successors, (819), 798 states have internal predecessors, (819), 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 04:34:31,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 839 states to 839 states and 895 transitions. [2023-11-29 04:34:31,505 INFO L78 Accepts]: Start accepts. Automaton has 839 states and 895 transitions. Word has length 137 [2023-11-29 04:34:31,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:34:31,505 INFO L495 AbstractCegarLoop]: Abstraction has 839 states and 895 transitions. [2023-11-29 04:34:31,505 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 21.6) internal successors, (108), 6 states have internal predecessors, (108), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2023-11-29 04:34:31,505 INFO L276 IsEmpty]: Start isEmpty. Operand 839 states and 895 transitions. [2023-11-29 04:34:31,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2023-11-29 04:34:31,506 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:34:31,506 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:34:31,511 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cc90d14-414a-4f0a-b477-597fd2c389d3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Ended with exit code 0 [2023-11-29 04:34:31,707 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cc90d14-414a-4f0a-b477-597fd2c389d3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2023-11-29 04:34:31,707 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr59ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 89 more)] === [2023-11-29 04:34:31,707 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:34:31,707 INFO L85 PathProgramCache]: Analyzing trace with hash 1860426956, now seen corresponding path program 1 times [2023-11-29 04:34:31,707 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:34:31,707 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [54981436] [2023-11-29 04:34:31,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:34:31,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:34:31,717 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:34:31,717 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [662624115] [2023-11-29 04:34:31,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:34:31,717 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:34:31,717 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cc90d14-414a-4f0a-b477-597fd2c389d3/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:34:31,718 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cc90d14-414a-4f0a-b477-597fd2c389d3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:34:31,719 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cc90d14-414a-4f0a-b477-597fd2c389d3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2023-11-29 04:34:31,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:34:31,795 INFO L262 TraceCheckSpWp]: Trace formula consists of 220 conjuncts, 20 conjunts are in the unsatisfiable core [2023-11-29 04:34:31,797 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:34:33,178 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 0 proven. 51 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-11-29 04:34:33,178 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:34:34,065 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 3 proven. 45 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2023-11-29 04:34:34,065 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:34:34,066 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [54981436] [2023-11-29 04:34:34,066 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:34:34,066 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [662624115] [2023-11-29 04:34:34,066 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [662624115] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 04:34:34,066 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 04:34:34,066 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10] total 19 [2023-11-29 04:34:34,066 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [246800169] [2023-11-29 04:34:34,066 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 04:34:34,067 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-11-29 04:34:34,067 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:34:34,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-11-29 04:34:34,068 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=297, Unknown=0, NotChecked=0, Total=380 [2023-11-29 04:34:34,069 INFO L87 Difference]: Start difference. First operand 839 states and 895 transitions. Second operand has 20 states, 19 states have (on average 12.210526315789474) internal successors, (232), 20 states have internal predecessors, (232), 8 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (16), 8 states have call predecessors, (16), 8 states have call successors, (16) [2023-11-29 04:34:37,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:34:37,678 INFO L93 Difference]: Finished difference Result 1536 states and 1642 transitions. [2023-11-29 04:34:37,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-11-29 04:34:37,679 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 19 states have (on average 12.210526315789474) internal successors, (232), 20 states have internal predecessors, (232), 8 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (16), 8 states have call predecessors, (16), 8 states have call successors, (16) Word has length 151 [2023-11-29 04:34:37,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:34:37,684 INFO L225 Difference]: With dead ends: 1536 [2023-11-29 04:34:37,684 INFO L226 Difference]: Without dead ends: 1535 [2023-11-29 04:34:37,685 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 316 GetRequests, 282 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 226 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=354, Invalid=906, Unknown=0, NotChecked=0, Total=1260 [2023-11-29 04:34:37,686 INFO L413 NwaCegarLoop]: 80 mSDtfsCounter, 2122 mSDsluCounter, 576 mSDsCounter, 0 mSdLazyCounter, 1514 mSolverCounterSat, 117 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2125 SdHoareTripleChecker+Valid, 656 SdHoareTripleChecker+Invalid, 1631 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 117 IncrementalHoareTripleChecker+Valid, 1514 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2023-11-29 04:34:37,686 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2125 Valid, 656 Invalid, 1631 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [117 Valid, 1514 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2023-11-29 04:34:37,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1535 states. [2023-11-29 04:34:37,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1535 to 1159. [2023-11-29 04:34:37,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1159 states, 1103 states have (on average 1.029011786038078) internal successors, (1135), 1104 states have internal predecessors, (1135), 52 states have call successors, (52), 2 states have call predecessors, (52), 2 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) [2023-11-29 04:34:37,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1159 states to 1159 states and 1239 transitions. [2023-11-29 04:34:37,808 INFO L78 Accepts]: Start accepts. Automaton has 1159 states and 1239 transitions. Word has length 151 [2023-11-29 04:34:37,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:34:37,809 INFO L495 AbstractCegarLoop]: Abstraction has 1159 states and 1239 transitions. [2023-11-29 04:34:37,809 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 12.210526315789474) internal successors, (232), 20 states have internal predecessors, (232), 8 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (16), 8 states have call predecessors, (16), 8 states have call successors, (16) [2023-11-29 04:34:37,809 INFO L276 IsEmpty]: Start isEmpty. Operand 1159 states and 1239 transitions. [2023-11-29 04:34:37,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2023-11-29 04:34:37,810 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:34:37,811 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2023-11-29 04:34:37,816 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cc90d14-414a-4f0a-b477-597fd2c389d3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Ended with exit code 0 [2023-11-29 04:34:38,011 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26,25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cc90d14-414a-4f0a-b477-597fd2c389d3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:34:38,011 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr39ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 89 more)] === [2023-11-29 04:34:38,011 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:34:38,012 INFO L85 PathProgramCache]: Analyzing trace with hash -507272048, now seen corresponding path program 2 times [2023-11-29 04:34:38,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:34:38,012 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [364580665] [2023-11-29 04:34:38,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:34:38,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:34:38,023 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:34:38,023 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1250512511] [2023-11-29 04:34:38,023 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 04:34:38,023 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:34:38,023 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cc90d14-414a-4f0a-b477-597fd2c389d3/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:34:38,024 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cc90d14-414a-4f0a-b477-597fd2c389d3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:34:38,026 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cc90d14-414a-4f0a-b477-597fd2c389d3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2023-11-29 04:34:38,118 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 04:34:38,119 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 04:34:38,120 INFO L262 TraceCheckSpWp]: Trace formula consists of 267 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-29 04:34:38,123 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:34:38,543 INFO L134 CoverageAnalysis]: Checked inductivity of 250 backedges. 125 proven. 73 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2023-11-29 04:34:38,543 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:34:38,895 INFO L134 CoverageAnalysis]: Checked inductivity of 250 backedges. 54 proven. 144 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2023-11-29 04:34:38,895 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:34:38,895 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [364580665] [2023-11-29 04:34:38,895 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:34:38,895 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1250512511] [2023-11-29 04:34:38,896 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1250512511] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 04:34:38,896 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 04:34:38,896 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 23 [2023-11-29 04:34:38,896 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [587677555] [2023-11-29 04:34:38,896 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 04:34:38,897 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2023-11-29 04:34:38,897 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:34:38,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2023-11-29 04:34:38,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=426, Unknown=0, NotChecked=0, Total=506 [2023-11-29 04:34:38,898 INFO L87 Difference]: Start difference. First operand 1159 states and 1239 transitions. Second operand has 23 states, 23 states have (on average 12.08695652173913) internal successors, (278), 23 states have internal predecessors, (278), 13 states have call successors, (16), 1 states have call predecessors, (16), 2 states have return successors, (17), 13 states have call predecessors, (17), 13 states have call successors, (17) [2023-11-29 04:34:40,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:34:40,519 INFO L93 Difference]: Finished difference Result 2760 states and 2949 transitions. [2023-11-29 04:34:40,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-11-29 04:34:40,519 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 12.08695652173913) internal successors, (278), 23 states have internal predecessors, (278), 13 states have call successors, (16), 1 states have call predecessors, (16), 2 states have return successors, (17), 13 states have call predecessors, (17), 13 states have call successors, (17) Word has length 186 [2023-11-29 04:34:40,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:34:40,525 INFO L225 Difference]: With dead ends: 2760 [2023-11-29 04:34:40,526 INFO L226 Difference]: Without dead ends: 1007 [2023-11-29 04:34:40,529 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 383 GetRequests, 349 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 185 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=314, Invalid=946, Unknown=0, NotChecked=0, Total=1260 [2023-11-29 04:34:40,530 INFO L413 NwaCegarLoop]: 104 mSDtfsCounter, 455 mSDsluCounter, 644 mSDsCounter, 0 mSdLazyCounter, 1621 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 458 SdHoareTripleChecker+Valid, 748 SdHoareTripleChecker+Invalid, 1661 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 1621 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-11-29 04:34:40,530 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [458 Valid, 748 Invalid, 1661 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 1621 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-11-29 04:34:40,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1007 states. [2023-11-29 04:34:40,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1007 to 961. [2023-11-29 04:34:40,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 961 states, 915 states have (on average 1.0218579234972678) internal successors, (935), 916 states have internal predecessors, (935), 42 states have call successors, (42), 2 states have call predecessors, (42), 2 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2023-11-29 04:34:40,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 961 states to 961 states and 1019 transitions. [2023-11-29 04:34:40,683 INFO L78 Accepts]: Start accepts. Automaton has 961 states and 1019 transitions. Word has length 186 [2023-11-29 04:34:40,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:34:40,684 INFO L495 AbstractCegarLoop]: Abstraction has 961 states and 1019 transitions. [2023-11-29 04:34:40,684 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 12.08695652173913) internal successors, (278), 23 states have internal predecessors, (278), 13 states have call successors, (16), 1 states have call predecessors, (16), 2 states have return successors, (17), 13 states have call predecessors, (17), 13 states have call successors, (17) [2023-11-29 04:34:40,684 INFO L276 IsEmpty]: Start isEmpty. Operand 961 states and 1019 transitions. [2023-11-29 04:34:40,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 268 [2023-11-29 04:34:40,687 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:34:40,688 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 5, 5, 5, 5, 5, 5, 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, 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 04:34:40,692 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cc90d14-414a-4f0a-b477-597fd2c389d3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Ended with exit code 0 [2023-11-29 04:34:40,888 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cc90d14-414a-4f0a-b477-597fd2c389d3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2023-11-29 04:34:40,888 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr59ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 89 more)] === [2023-11-29 04:34:40,888 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:34:40,889 INFO L85 PathProgramCache]: Analyzing trace with hash -535853620, now seen corresponding path program 1 times [2023-11-29 04:34:40,889 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:34:40,889 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [554037730] [2023-11-29 04:34:40,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:34:40,889 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:34:40,906 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:34:40,907 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [994137520] [2023-11-29 04:34:40,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:34:40,907 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:34:40,907 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cc90d14-414a-4f0a-b477-597fd2c389d3/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:34:40,908 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cc90d14-414a-4f0a-b477-597fd2c389d3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:34:40,909 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cc90d14-414a-4f0a-b477-597fd2c389d3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2023-11-29 04:34:40,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:34:40,993 INFO L262 TraceCheckSpWp]: Trace formula consists of 368 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-29 04:34:40,997 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:34:42,272 INFO L134 CoverageAnalysis]: Checked inductivity of 381 backedges. 117 proven. 137 refuted. 0 times theorem prover too weak. 127 trivial. 0 not checked. [2023-11-29 04:34:42,273 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:34:43,236 INFO L134 CoverageAnalysis]: Checked inductivity of 381 backedges. 46 proven. 208 refuted. 0 times theorem prover too weak. 127 trivial. 0 not checked. [2023-11-29 04:34:43,237 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:34:43,237 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [554037730] [2023-11-29 04:34:43,237 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:34:43,237 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [994137520] [2023-11-29 04:34:43,237 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [994137520] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 04:34:43,237 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 04:34:43,237 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16] total 29 [2023-11-29 04:34:43,238 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [301410147] [2023-11-29 04:34:43,238 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 04:34:43,239 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2023-11-29 04:34:43,239 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:34:43,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2023-11-29 04:34:43,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=124, Invalid=688, Unknown=0, NotChecked=0, Total=812 [2023-11-29 04:34:43,240 INFO L87 Difference]: Start difference. First operand 961 states and 1019 transitions. Second operand has 29 states, 29 states have (on average 14.0) internal successors, (406), 29 states have internal predecessors, (406), 15 states have call successors, (21), 1 states have call predecessors, (21), 2 states have return successors, (22), 15 states have call predecessors, (22), 15 states have call successors, (22) [2023-11-29 04:34:48,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:34:48,549 INFO L93 Difference]: Finished difference Result 1826 states and 1936 transitions. [2023-11-29 04:34:48,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2023-11-29 04:34:48,549 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 14.0) internal successors, (406), 29 states have internal predecessors, (406), 15 states have call successors, (21), 1 states have call predecessors, (21), 2 states have return successors, (22), 15 states have call predecessors, (22), 15 states have call successors, (22) Word has length 267 [2023-11-29 04:34:48,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:34:48,556 INFO L225 Difference]: With dead ends: 1826 [2023-11-29 04:34:48,556 INFO L226 Difference]: Without dead ends: 1555 [2023-11-29 04:34:48,557 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 563 GetRequests, 505 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 852 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=669, Invalid=2871, Unknown=0, NotChecked=0, Total=3540 [2023-11-29 04:34:48,558 INFO L413 NwaCegarLoop]: 49 mSDtfsCounter, 1618 mSDsluCounter, 477 mSDsCounter, 0 mSdLazyCounter, 3485 mSolverCounterSat, 129 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1620 SdHoareTripleChecker+Valid, 526 SdHoareTripleChecker+Invalid, 3614 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 129 IncrementalHoareTripleChecker+Valid, 3485 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2023-11-29 04:34:48,558 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1620 Valid, 526 Invalid, 3614 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [129 Valid, 3485 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2023-11-29 04:34:48,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1555 states. [2023-11-29 04:34:48,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1555 to 1371. [2023-11-29 04:34:48,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1371 states, 1308 states have (on average 1.0244648318042813) internal successors, (1340), 1309 states have internal predecessors, (1340), 59 states have call successors, (59), 2 states have call predecessors, (59), 2 states have return successors, (59), 59 states have call predecessors, (59), 59 states have call successors, (59) [2023-11-29 04:34:48,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1371 states to 1371 states and 1458 transitions. [2023-11-29 04:34:48,727 INFO L78 Accepts]: Start accepts. Automaton has 1371 states and 1458 transitions. Word has length 267 [2023-11-29 04:34:48,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:34:48,728 INFO L495 AbstractCegarLoop]: Abstraction has 1371 states and 1458 transitions. [2023-11-29 04:34:48,728 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 14.0) internal successors, (406), 29 states have internal predecessors, (406), 15 states have call successors, (21), 1 states have call predecessors, (21), 2 states have return successors, (22), 15 states have call predecessors, (22), 15 states have call successors, (22) [2023-11-29 04:34:48,728 INFO L276 IsEmpty]: Start isEmpty. Operand 1371 states and 1458 transitions. [2023-11-29 04:34:48,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 291 [2023-11-29 04:34:48,731 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:34:48,731 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 04:34:48,736 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cc90d14-414a-4f0a-b477-597fd2c389d3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Ended with exit code 0 [2023-11-29 04:34:48,931 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cc90d14-414a-4f0a-b477-597fd2c389d3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2023-11-29 04:34:48,932 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr39ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 89 more)] === [2023-11-29 04:34:48,932 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:34:48,932 INFO L85 PathProgramCache]: Analyzing trace with hash -1346004470, now seen corresponding path program 1 times [2023-11-29 04:34:48,932 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:34:48,932 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [354790960] [2023-11-29 04:34:48,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:34:48,933 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:34:48,948 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:34:48,948 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1769651513] [2023-11-29 04:34:48,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:34:48,949 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:34:48,949 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cc90d14-414a-4f0a-b477-597fd2c389d3/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:34:48,950 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cc90d14-414a-4f0a-b477-597fd2c389d3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:34:48,951 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cc90d14-414a-4f0a-b477-597fd2c389d3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2023-11-29 04:34:49,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:34:49,073 INFO L262 TraceCheckSpWp]: Trace formula consists of 391 conjuncts, 32 conjunts are in the unsatisfiable core [2023-11-29 04:34:49,077 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:35:07,826 INFO L134 CoverageAnalysis]: Checked inductivity of 489 backedges. 128 proven. 193 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2023-11-29 04:35:07,827 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:35:09,183 INFO L134 CoverageAnalysis]: Checked inductivity of 489 backedges. 66 proven. 267 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2023-11-29 04:35:09,183 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:35:09,183 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [354790960] [2023-11-29 04:35:09,183 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:35:09,184 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1769651513] [2023-11-29 04:35:09,184 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1769651513] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 04:35:09,184 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 04:35:09,184 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 15] total 29 [2023-11-29 04:35:09,184 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1464411448] [2023-11-29 04:35:09,184 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 04:35:09,185 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2023-11-29 04:35:09,185 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:35:09,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2023-11-29 04:35:09,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=132, Invalid=677, Unknown=3, NotChecked=0, Total=812 [2023-11-29 04:35:09,187 INFO L87 Difference]: Start difference. First operand 1371 states and 1458 transitions. Second operand has 29 states, 28 states have (on average 15.964285714285714) internal successors, (447), 28 states have internal predecessors, (447), 15 states have call successors, (25), 1 states have call predecessors, (25), 2 states have return successors, (26), 17 states have call predecessors, (26), 15 states have call successors, (26) [2023-11-29 04:35:17,526 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 04:35:21,961 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 04:35:26,206 WARN L539 Checker$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 04:35:30,469 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 04:35:36,197 WARN L539 Checker$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 04:35:40,282 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 04:35:44,304 WARN L539 Checker$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 04:35:48,364 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 04:35:52,758 WARN L539 Checker$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 04:35:57,689 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 04:36:01,910 WARN L539 Checker$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 04:36:09,207 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 04:36:13,448 WARN L539 Checker$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 04:36:23,136 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 04:36:25,438 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.65s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 04:36:27,068 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 04:36:30,873 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.49s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 04:36:36,153 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 04:36:39,924 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.83s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 04:36:44,947 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 04:36:49,327 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.82s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 04:36:54,031 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 04:37:00,669 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.96s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 04:37:05,872 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 04:37:10,889 WARN L539 Checker$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 04:37:16,204 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.77s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 04:37:19,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:37:19,099 INFO L93 Difference]: Finished difference Result 2022 states and 2152 transitions. [2023-11-29 04:37:19,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2023-11-29 04:37:19,100 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 28 states have (on average 15.964285714285714) internal successors, (447), 28 states have internal predecessors, (447), 15 states have call successors, (25), 1 states have call predecessors, (25), 2 states have return successors, (26), 17 states have call predecessors, (26), 15 states have call successors, (26) Word has length 290 [2023-11-29 04:37:19,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:37:19,108 INFO L225 Difference]: With dead ends: 2022 [2023-11-29 04:37:19,109 INFO L226 Difference]: Without dead ends: 1436 [2023-11-29 04:37:19,111 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 616 GetRequests, 551 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1154 ImplicationChecksByTransitivity, 27.3s TimeCoverageRelationStatistics Valid=1018, Invalid=3400, Unknown=4, NotChecked=0, Total=4422 [2023-11-29 04:37:19,111 INFO L413 NwaCegarLoop]: 35 mSDtfsCounter, 1513 mSDsluCounter, 498 mSDsCounter, 0 mSdLazyCounter, 3338 mSolverCounterSat, 98 mSolverCounterUnsat, 19 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 114.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1515 SdHoareTripleChecker+Valid, 533 SdHoareTripleChecker+Invalid, 3455 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 98 IncrementalHoareTripleChecker+Valid, 3338 IncrementalHoareTripleChecker+Invalid, 19 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 115.3s IncrementalHoareTripleChecker+Time [2023-11-29 04:37:19,111 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1515 Valid, 533 Invalid, 3455 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [98 Valid, 3338 Invalid, 19 Unknown, 0 Unchecked, 115.3s Time] [2023-11-29 04:37:19,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1436 states. [2023-11-29 04:37:19,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1436 to 1387. [2023-11-29 04:37:19,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1387 states, 1323 states have (on average 1.0226757369614512) internal successors, (1353), 1324 states have internal predecessors, (1353), 60 states have call successors, (60), 2 states have call predecessors, (60), 2 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) [2023-11-29 04:37:19,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1387 states to 1387 states and 1473 transitions. [2023-11-29 04:37:19,286 INFO L78 Accepts]: Start accepts. Automaton has 1387 states and 1473 transitions. Word has length 290 [2023-11-29 04:37:19,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:37:19,286 INFO L495 AbstractCegarLoop]: Abstraction has 1387 states and 1473 transitions. [2023-11-29 04:37:19,287 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 28 states have (on average 15.964285714285714) internal successors, (447), 28 states have internal predecessors, (447), 15 states have call successors, (25), 1 states have call predecessors, (25), 2 states have return successors, (26), 17 states have call predecessors, (26), 15 states have call successors, (26) [2023-11-29 04:37:19,287 INFO L276 IsEmpty]: Start isEmpty. Operand 1387 states and 1473 transitions. [2023-11-29 04:37:19,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 291 [2023-11-29 04:37:19,289 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:37:19,289 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 04:37:19,294 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cc90d14-414a-4f0a-b477-597fd2c389d3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Ended with exit code 0 [2023-11-29 04:37:19,489 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cc90d14-414a-4f0a-b477-597fd2c389d3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:37:19,490 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr39ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 89 more)] === [2023-11-29 04:37:19,490 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:37:19,490 INFO L85 PathProgramCache]: Analyzing trace with hash -1602713974, now seen corresponding path program 2 times [2023-11-29 04:37:19,490 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:37:19,490 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [285427951] [2023-11-29 04:37:19,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:37:19,490 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:37:19,504 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:37:19,505 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1342108194] [2023-11-29 04:37:19,505 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 04:37:19,505 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:37:19,505 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cc90d14-414a-4f0a-b477-597fd2c389d3/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:37:19,506 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cc90d14-414a-4f0a-b477-597fd2c389d3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:37:19,507 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cc90d14-414a-4f0a-b477-597fd2c389d3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2023-11-29 04:37:19,703 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 04:37:19,704 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 04:37:19,706 INFO L262 TraceCheckSpWp]: Trace formula consists of 391 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-29 04:37:19,709 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:37:19,991 INFO L134 CoverageAnalysis]: Checked inductivity of 489 backedges. 0 proven. 279 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2023-11-29 04:37:19,992 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:37:20,610 INFO L134 CoverageAnalysis]: Checked inductivity of 489 backedges. 0 proven. 279 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2023-11-29 04:37:20,610 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:37:20,610 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [285427951] [2023-11-29 04:37:20,610 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:37:20,610 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1342108194] [2023-11-29 04:37:20,610 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1342108194] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 04:37:20,610 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 04:37:20,611 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2023-11-29 04:37:20,611 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [97261012] [2023-11-29 04:37:20,611 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 04:37:20,612 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 04:37:20,612 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:37:20,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 04:37:20,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2023-11-29 04:37:20,613 INFO L87 Difference]: Start difference. First operand 1387 states and 1473 transitions. Second operand has 12 states, 11 states have (on average 33.54545454545455) internal successors, (369), 12 states have internal predecessors, (369), 9 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 9 states have call predecessors, (18), 9 states have call successors, (18) [2023-11-29 04:37:21,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:37:21,939 INFO L93 Difference]: Finished difference Result 3339 states and 3563 transitions. [2023-11-29 04:37:21,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-29 04:37:21,940 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 33.54545454545455) internal successors, (369), 12 states have internal predecessors, (369), 9 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 9 states have call predecessors, (18), 9 states have call successors, (18) Word has length 290 [2023-11-29 04:37:21,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:37:21,954 INFO L225 Difference]: With dead ends: 3339 [2023-11-29 04:37:21,955 INFO L226 Difference]: Without dead ends: 3338 [2023-11-29 04:37:21,956 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 582 GetRequests, 568 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=94, Invalid=146, Unknown=0, NotChecked=0, Total=240 [2023-11-29 04:37:21,956 INFO L413 NwaCegarLoop]: 213 mSDtfsCounter, 904 mSDsluCounter, 1021 mSDsCounter, 0 mSdLazyCounter, 970 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 913 SdHoareTripleChecker+Valid, 1234 SdHoareTripleChecker+Invalid, 1003 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 970 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-29 04:37:21,956 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [913 Valid, 1234 Invalid, 1003 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 970 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-29 04:37:21,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3338 states. [2023-11-29 04:37:22,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3338 to 3331. [2023-11-29 04:37:22,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3331 states, 3185 states have (on average 1.0235478806907379) internal successors, (3260), 3186 states have internal predecessors, (3260), 142 states have call successors, (142), 2 states have call predecessors, (142), 2 states have return successors, (142), 142 states have call predecessors, (142), 142 states have call successors, (142) [2023-11-29 04:37:22,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3331 states to 3331 states and 3544 transitions. [2023-11-29 04:37:22,380 INFO L78 Accepts]: Start accepts. Automaton has 3331 states and 3544 transitions. Word has length 290 [2023-11-29 04:37:22,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:37:22,381 INFO L495 AbstractCegarLoop]: Abstraction has 3331 states and 3544 transitions. [2023-11-29 04:37:22,381 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 33.54545454545455) internal successors, (369), 12 states have internal predecessors, (369), 9 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 9 states have call predecessors, (18), 9 states have call successors, (18) [2023-11-29 04:37:22,381 INFO L276 IsEmpty]: Start isEmpty. Operand 3331 states and 3544 transitions. [2023-11-29 04:37:22,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 314 [2023-11-29 04:37:22,384 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:37:22,384 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 5, 5, 5, 5, 5, 5, 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 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 04:37:22,389 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cc90d14-414a-4f0a-b477-597fd2c389d3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Ended with exit code 0 [2023-11-29 04:37:22,584 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cc90d14-414a-4f0a-b477-597fd2c389d3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:37:22,585 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr59ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 89 more)] === [2023-11-29 04:37:22,585 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:37:22,585 INFO L85 PathProgramCache]: Analyzing trace with hash -661092302, now seen corresponding path program 1 times [2023-11-29 04:37:22,585 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:37:22,585 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [921319946] [2023-11-29 04:37:22,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:37:22,586 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:37:22,600 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:37:22,600 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1937473223] [2023-11-29 04:37:22,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:37:22,601 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:37:22,601 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cc90d14-414a-4f0a-b477-597fd2c389d3/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:37:22,602 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cc90d14-414a-4f0a-b477-597fd2c389d3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:37:22,603 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cc90d14-414a-4f0a-b477-597fd2c389d3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2023-11-29 04:37:22,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:37:22,717 INFO L262 TraceCheckSpWp]: Trace formula consists of 418 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-29 04:37:22,722 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:37:23,057 INFO L134 CoverageAnalysis]: Checked inductivity of 521 backedges. 183 proven. 134 refuted. 0 times theorem prover too weak. 204 trivial. 0 not checked. [2023-11-29 04:37:23,057 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:37:23,455 INFO L134 CoverageAnalysis]: Checked inductivity of 521 backedges. 183 proven. 134 refuted. 0 times theorem prover too weak. 204 trivial. 0 not checked. [2023-11-29 04:37:23,455 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:37:23,455 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [921319946] [2023-11-29 04:37:23,455 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:37:23,455 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1937473223] [2023-11-29 04:37:23,456 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1937473223] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 04:37:23,456 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 04:37:23,456 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 18 [2023-11-29 04:37:23,456 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1593831162] [2023-11-29 04:37:23,456 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 04:37:23,457 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-11-29 04:37:23,457 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:37:23,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-11-29 04:37:23,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=250, Unknown=0, NotChecked=0, Total=306 [2023-11-29 04:37:23,459 INFO L87 Difference]: Start difference. First operand 3331 states and 3544 transitions. Second operand has 18 states, 18 states have (on average 22.555555555555557) internal successors, (406), 18 states have internal predecessors, (406), 9 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 9 states have call predecessors, (21), 9 states have call successors, (21) [2023-11-29 04:37:26,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:37:26,053 INFO L93 Difference]: Finished difference Result 6375 states and 6780 transitions. [2023-11-29 04:37:26,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2023-11-29 04:37:26,053 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 22.555555555555557) internal successors, (406), 18 states have internal predecessors, (406), 9 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 9 states have call predecessors, (21), 9 states have call successors, (21) Word has length 313 [2023-11-29 04:37:26,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:37:26,076 INFO L225 Difference]: With dead ends: 6375 [2023-11-29 04:37:26,076 INFO L226 Difference]: Without dead ends: 5326 [2023-11-29 04:37:26,079 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 643 GetRequests, 611 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 197 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=213, Invalid=909, Unknown=0, NotChecked=0, Total=1122 [2023-11-29 04:37:26,080 INFO L413 NwaCegarLoop]: 135 mSDtfsCounter, 182 mSDsluCounter, 834 mSDsCounter, 0 mSdLazyCounter, 2644 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 182 SdHoareTripleChecker+Valid, 969 SdHoareTripleChecker+Invalid, 2666 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 2644 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-11-29 04:37:26,080 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [182 Valid, 969 Invalid, 2666 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 2644 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2023-11-29 04:37:26,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5326 states. [2023-11-29 04:37:26,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5326 to 4395. [2023-11-29 04:37:26,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4395 states, 4210 states have (on average 1.0244655581947744) internal successors, (4313), 4211 states have internal predecessors, (4313), 181 states have call successors, (181), 2 states have call predecessors, (181), 2 states have return successors, (181), 181 states have call predecessors, (181), 181 states have call successors, (181) [2023-11-29 04:37:26,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4395 states to 4395 states and 4675 transitions. [2023-11-29 04:37:26,622 INFO L78 Accepts]: Start accepts. Automaton has 4395 states and 4675 transitions. Word has length 313 [2023-11-29 04:37:26,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:37:26,622 INFO L495 AbstractCegarLoop]: Abstraction has 4395 states and 4675 transitions. [2023-11-29 04:37:26,622 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 22.555555555555557) internal successors, (406), 18 states have internal predecessors, (406), 9 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 9 states have call predecessors, (21), 9 states have call successors, (21) [2023-11-29 04:37:26,622 INFO L276 IsEmpty]: Start isEmpty. Operand 4395 states and 4675 transitions. [2023-11-29 04:37:26,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 343 [2023-11-29 04:37:26,626 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:37:26,626 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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 04:37:26,631 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cc90d14-414a-4f0a-b477-597fd2c389d3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Ended with exit code 0 [2023-11-29 04:37:26,826 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cc90d14-414a-4f0a-b477-597fd2c389d3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:37:26,827 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr59ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 89 more)] === [2023-11-29 04:37:26,827 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:37:26,827 INFO L85 PathProgramCache]: Analyzing trace with hash 2019276843, now seen corresponding path program 2 times [2023-11-29 04:37:26,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:37:26,827 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [788264407] [2023-11-29 04:37:26,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:37:26,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:37:26,844 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:37:26,845 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1745545217] [2023-11-29 04:37:26,845 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 04:37:26,845 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:37:26,845 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cc90d14-414a-4f0a-b477-597fd2c389d3/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:37:26,846 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cc90d14-414a-4f0a-b477-597fd2c389d3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:37:26,847 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cc90d14-414a-4f0a-b477-597fd2c389d3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2023-11-29 04:37:26,955 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 04:37:26,956 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 04:37:26,957 INFO L262 TraceCheckSpWp]: Trace formula consists of 455 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-29 04:37:26,961 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:37:27,595 INFO L134 CoverageAnalysis]: Checked inductivity of 653 backedges. 78 proven. 331 refuted. 0 times theorem prover too weak. 244 trivial. 0 not checked. [2023-11-29 04:37:27,595 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:37:28,206 INFO L134 CoverageAnalysis]: Checked inductivity of 653 backedges. 36 proven. 373 refuted. 0 times theorem prover too weak. 244 trivial. 0 not checked. [2023-11-29 04:37:28,207 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:37:28,207 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [788264407] [2023-11-29 04:37:28,207 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:37:28,207 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1745545217] [2023-11-29 04:37:28,207 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1745545217] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 04:37:28,207 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 04:37:28,207 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 16 [2023-11-29 04:37:28,208 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1318618000] [2023-11-29 04:37:28,208 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 04:37:28,209 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-11-29 04:37:28,209 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:37:28,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-11-29 04:37:28,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=185, Unknown=0, NotChecked=0, Total=240 [2023-11-29 04:37:28,210 INFO L87 Difference]: Start difference. First operand 4395 states and 4675 transitions. Second operand has 16 states, 16 states have (on average 24.0) internal successors, (384), 16 states have internal predecessors, (384), 9 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 9 states have call predecessors, (20), 9 states have call successors, (20) [2023-11-29 04:37:30,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:37:30,724 INFO L93 Difference]: Finished difference Result 5729 states and 6101 transitions. [2023-11-29 04:37:30,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2023-11-29 04:37:30,725 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 24.0) internal successors, (384), 16 states have internal predecessors, (384), 9 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 9 states have call predecessors, (20), 9 states have call successors, (20) Word has length 342 [2023-11-29 04:37:30,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:37:30,738 INFO L225 Difference]: With dead ends: 5729 [2023-11-29 04:37:30,738 INFO L226 Difference]: Without dead ends: 4346 [2023-11-29 04:37:30,741 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 710 GetRequests, 665 SyntacticMatches, 3 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 498 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=448, Invalid=1444, Unknown=0, NotChecked=0, Total=1892 [2023-11-29 04:37:30,742 INFO L413 NwaCegarLoop]: 76 mSDtfsCounter, 521 mSDsluCounter, 541 mSDsCounter, 0 mSdLazyCounter, 2035 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 524 SdHoareTripleChecker+Valid, 617 SdHoareTripleChecker+Invalid, 2099 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 2035 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-11-29 04:37:30,742 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [524 Valid, 617 Invalid, 2099 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 2035 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-11-29 04:37:30,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4346 states. [2023-11-29 04:37:31,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4346 to 4299. [2023-11-29 04:37:31,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4299 states, 4118 states have (on average 1.0237979601748421) internal successors, (4216), 4119 states have internal predecessors, (4216), 177 states have call successors, (177), 2 states have call predecessors, (177), 2 states have return successors, (177), 177 states have call predecessors, (177), 177 states have call successors, (177) [2023-11-29 04:37:31,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4299 states to 4299 states and 4570 transitions. [2023-11-29 04:37:31,238 INFO L78 Accepts]: Start accepts. Automaton has 4299 states and 4570 transitions. Word has length 342 [2023-11-29 04:37:31,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:37:31,239 INFO L495 AbstractCegarLoop]: Abstraction has 4299 states and 4570 transitions. [2023-11-29 04:37:31,239 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 24.0) internal successors, (384), 16 states have internal predecessors, (384), 9 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 9 states have call predecessors, (20), 9 states have call successors, (20) [2023-11-29 04:37:31,239 INFO L276 IsEmpty]: Start isEmpty. Operand 4299 states and 4570 transitions. [2023-11-29 04:37:31,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 418 [2023-11-29 04:37:31,244 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:37:31,244 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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 04:37:31,250 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cc90d14-414a-4f0a-b477-597fd2c389d3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Forceful destruction successful, exit code 0 [2023-11-29 04:37:31,444 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32,31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cc90d14-414a-4f0a-b477-597fd2c389d3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:37:31,445 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr59ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 89 more)] === [2023-11-29 04:37:31,445 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:37:31,445 INFO L85 PathProgramCache]: Analyzing trace with hash -1823147818, now seen corresponding path program 3 times [2023-11-29 04:37:31,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:37:31,446 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [43182346] [2023-11-29 04:37:31,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:37:31,446 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:37:31,464 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:37:31,464 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [711047207] [2023-11-29 04:37:31,464 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-29 04:37:31,464 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:37:31,465 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cc90d14-414a-4f0a-b477-597fd2c389d3/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:37:31,466 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cc90d14-414a-4f0a-b477-597fd2c389d3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:37:31,467 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cc90d14-414a-4f0a-b477-597fd2c389d3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2023-11-29 04:37:36,312 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2023-11-29 04:37:36,312 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 04:37:36,315 INFO L262 TraceCheckSpWp]: Trace formula consists of 381 conjuncts, 14 conjunts are in the unsatisfiable core [2023-11-29 04:37:36,320 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:37:39,255 INFO L134 CoverageAnalysis]: Checked inductivity of 1035 backedges. 3 proven. 523 refuted. 0 times theorem prover too weak. 509 trivial. 0 not checked. [2023-11-29 04:37:39,255 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:37:40,268 INFO L134 CoverageAnalysis]: Checked inductivity of 1035 backedges. 3 proven. 523 refuted. 0 times theorem prover too weak. 509 trivial. 0 not checked. [2023-11-29 04:37:40,268 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:37:40,268 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [43182346] [2023-11-29 04:37:40,268 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:37:40,268 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [711047207] [2023-11-29 04:37:40,268 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [711047207] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 04:37:40,268 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 04:37:40,269 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2023-11-29 04:37:40,269 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1943788021] [2023-11-29 04:37:40,269 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 04:37:40,269 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-11-29 04:37:40,270 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:37:40,270 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-11-29 04:37:40,271 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=164, Unknown=0, NotChecked=0, Total=210 [2023-11-29 04:37:40,271 INFO L87 Difference]: Start difference. First operand 4299 states and 4570 transitions. Second operand has 15 states, 14 states have (on average 33.07142857142857) internal successors, (463), 15 states have internal predecessors, (463), 9 states have call successors, (24), 1 states have call predecessors, (24), 2 states have return successors, (25), 9 states have call predecessors, (25), 9 states have call successors, (25) [2023-11-29 04:37:43,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:37:43,747 INFO L93 Difference]: Finished difference Result 18045 states and 19188 transitions. [2023-11-29 04:37:43,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-29 04:37:43,748 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 33.07142857142857) internal successors, (463), 15 states have internal predecessors, (463), 9 states have call successors, (24), 1 states have call predecessors, (24), 2 states have return successors, (25), 9 states have call predecessors, (25), 9 states have call successors, (25) Word has length 417 [2023-11-29 04:37:43,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:37:43,786 INFO L225 Difference]: With dead ends: 18045 [2023-11-29 04:37:43,786 INFO L226 Difference]: Without dead ends: 18044 [2023-11-29 04:37:43,790 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 841 GetRequests, 819 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=135, Invalid=417, Unknown=0, NotChecked=0, Total=552 [2023-11-29 04:37:43,790 INFO L413 NwaCegarLoop]: 180 mSDtfsCounter, 1577 mSDsluCounter, 1009 mSDsCounter, 0 mSdLazyCounter, 1116 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1577 SdHoareTripleChecker+Valid, 1189 SdHoareTripleChecker+Invalid, 1184 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 1116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-11-29 04:37:43,790 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1577 Valid, 1189 Invalid, 1184 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 1116 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-11-29 04:37:43,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18044 states. [2023-11-29 04:37:45,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18044 to 10239. [2023-11-29 04:37:45,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10239 states, 9809 states have (on average 1.0222244877153635) internal successors, (10027), 9810 states have internal predecessors, (10027), 426 states have call successors, (426), 2 states have call predecessors, (426), 2 states have return successors, (426), 426 states have call predecessors, (426), 426 states have call successors, (426) [2023-11-29 04:37:45,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10239 states to 10239 states and 10879 transitions. [2023-11-29 04:37:45,273 INFO L78 Accepts]: Start accepts. Automaton has 10239 states and 10879 transitions. Word has length 417 [2023-11-29 04:37:45,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:37:45,274 INFO L495 AbstractCegarLoop]: Abstraction has 10239 states and 10879 transitions. [2023-11-29 04:37:45,274 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 33.07142857142857) internal successors, (463), 15 states have internal predecessors, (463), 9 states have call successors, (24), 1 states have call predecessors, (24), 2 states have return successors, (25), 9 states have call predecessors, (25), 9 states have call successors, (25) [2023-11-29 04:37:45,274 INFO L276 IsEmpty]: Start isEmpty. Operand 10239 states and 10879 transitions. [2023-11-29 04:37:45,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 517 [2023-11-29 04:37:45,289 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:37:45,289 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 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 04:37:45,298 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cc90d14-414a-4f0a-b477-597fd2c389d3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Forceful destruction successful, exit code 0 [2023-11-29 04:37:45,490 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33,32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cc90d14-414a-4f0a-b477-597fd2c389d3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:37:45,490 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr59ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 89 more)] === [2023-11-29 04:37:45,490 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:37:45,491 INFO L85 PathProgramCache]: Analyzing trace with hash -1837536279, now seen corresponding path program 4 times [2023-11-29 04:37:45,491 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:37:45,491 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [903025196] [2023-11-29 04:37:45,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:37:45,491 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:37:45,520 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:37:45,520 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [970267416] [2023-11-29 04:37:45,520 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-11-29 04:37:45,520 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:37:45,521 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cc90d14-414a-4f0a-b477-597fd2c389d3/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:37:45,522 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cc90d14-414a-4f0a-b477-597fd2c389d3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:37:45,522 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cc90d14-414a-4f0a-b477-597fd2c389d3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process [2023-11-29 04:37:46,121 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-11-29 04:37:46,121 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 04:37:46,125 INFO L262 TraceCheckSpWp]: Trace formula consists of 677 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-29 04:37:46,131 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:37:46,904 INFO L134 CoverageAnalysis]: Checked inductivity of 1859 backedges. 809 proven. 475 refuted. 0 times theorem prover too weak. 575 trivial. 0 not checked. [2023-11-29 04:37:46,904 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:37:47,716 INFO L134 CoverageAnalysis]: Checked inductivity of 1859 backedges. 484 proven. 632 refuted. 0 times theorem prover too weak. 743 trivial. 0 not checked. [2023-11-29 04:37:47,717 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:37:47,717 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [903025196] [2023-11-29 04:37:47,717 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:37:47,717 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [970267416] [2023-11-29 04:37:47,717 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [970267416] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 04:37:47,717 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 04:37:47,718 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 26 [2023-11-29 04:37:47,718 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1244496052] [2023-11-29 04:37:47,718 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 04:37:47,719 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-11-29 04:37:47,719 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:37:47,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-11-29 04:37:47,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=107, Invalid=543, Unknown=0, NotChecked=0, Total=650 [2023-11-29 04:37:47,721 INFO L87 Difference]: Start difference. First operand 10239 states and 10879 transitions. Second operand has 26 states, 26 states have (on average 22.807692307692307) internal successors, (593), 26 states have internal predecessors, (593), 16 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (30), 16 states have call predecessors, (30), 16 states have call successors, (30) [2023-11-29 04:37:52,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:37:52,181 INFO L93 Difference]: Finished difference Result 17082 states and 18116 transitions. [2023-11-29 04:37:52,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2023-11-29 04:37:52,181 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 22.807692307692307) internal successors, (593), 26 states have internal predecessors, (593), 16 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (30), 16 states have call predecessors, (30), 16 states have call successors, (30) Word has length 516 [2023-11-29 04:37:52,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:37:52,212 INFO L225 Difference]: With dead ends: 17082 [2023-11-29 04:37:52,212 INFO L226 Difference]: Without dead ends: 13000 [2023-11-29 04:37:52,219 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1056 GetRequests, 1006 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 482 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=644, Invalid=2008, Unknown=0, NotChecked=0, Total=2652 [2023-11-29 04:37:52,220 INFO L413 NwaCegarLoop]: 99 mSDtfsCounter, 380 mSDsluCounter, 780 mSDsCounter, 0 mSdLazyCounter, 3437 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 380 SdHoareTripleChecker+Valid, 879 SdHoareTripleChecker+Invalid, 3470 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 3437 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2023-11-29 04:37:52,220 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [380 Valid, 879 Invalid, 3470 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 3437 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2023-11-29 04:37:52,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13000 states. [2023-11-29 04:37:53,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13000 to 8078. [2023-11-29 04:37:53,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8078 states, 7730 states have (on average 1.016946959896507) internal successors, (7861), 7731 states have internal predecessors, (7861), 344 states have call successors, (344), 2 states have call predecessors, (344), 2 states have return successors, (344), 344 states have call predecessors, (344), 344 states have call successors, (344) [2023-11-29 04:37:53,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8078 states to 8078 states and 8549 transitions. [2023-11-29 04:37:53,541 INFO L78 Accepts]: Start accepts. Automaton has 8078 states and 8549 transitions. Word has length 516 [2023-11-29 04:37:53,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:37:53,542 INFO L495 AbstractCegarLoop]: Abstraction has 8078 states and 8549 transitions. [2023-11-29 04:37:53,542 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 22.807692307692307) internal successors, (593), 26 states have internal predecessors, (593), 16 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (30), 16 states have call predecessors, (30), 16 states have call successors, (30) [2023-11-29 04:37:53,542 INFO L276 IsEmpty]: Start isEmpty. Operand 8078 states and 8549 transitions. [2023-11-29 04:37:53,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 523 [2023-11-29 04:37:53,551 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:37:53,552 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 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, 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] [2023-11-29 04:37:53,557 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cc90d14-414a-4f0a-b477-597fd2c389d3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Ended with exit code 0 [2023-11-29 04:37:53,752 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cc90d14-414a-4f0a-b477-597fd2c389d3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34 [2023-11-29 04:37:53,752 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr39ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 89 more)] === [2023-11-29 04:37:53,752 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:37:53,753 INFO L85 PathProgramCache]: Analyzing trace with hash 1092331338, now seen corresponding path program 3 times [2023-11-29 04:37:53,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:37:53,753 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1774464933] [2023-11-29 04:37:53,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:37:53,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:37:53,775 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:37:53,776 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [515134220] [2023-11-29 04:37:53,776 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-29 04:37:53,776 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:37:53,776 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cc90d14-414a-4f0a-b477-597fd2c389d3/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:37:53,777 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cc90d14-414a-4f0a-b477-597fd2c389d3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:37:53,778 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cc90d14-414a-4f0a-b477-597fd2c389d3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Waiting until timeout for monitored process [2023-11-29 04:37:55,312 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2023-11-29 04:37:55,312 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 04:37:55,315 INFO L262 TraceCheckSpWp]: Trace formula consists of 256 conjuncts, 25 conjunts are in the unsatisfiable core [2023-11-29 04:37:55,321 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:38:03,875 INFO L134 CoverageAnalysis]: Checked inductivity of 2161 backedges. 454 proven. 151 refuted. 0 times theorem prover too weak. 1556 trivial. 0 not checked. [2023-11-29 04:38:03,875 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:38:32,708 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:38:32,708 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1774464933] [2023-11-29 04:38:32,708 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:38:32,708 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [515134220] [2023-11-29 04:38:32,708 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [515134220] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:38:32,708 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 04:38:32,708 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2023-11-29 04:38:32,709 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1969697903] [2023-11-29 04:38:32,709 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 04:38:32,709 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-11-29 04:38:32,709 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:38:32,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-11-29 04:38:32,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=469, Unknown=2, NotChecked=0, Total=552 [2023-11-29 04:38:32,710 INFO L87 Difference]: Start difference. First operand 8078 states and 8549 transitions. Second operand has 17 states, 16 states have (on average 11.625) internal successors, (186), 16 states have internal predecessors, (186), 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 04:38:36,987 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 04:38:41,019 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 04:38:42,934 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.91s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 04:38:44,802 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.87s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 04:39:05,850 WARN L539 Checker$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 04:39:10,435 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 04:39:15,255 WARN L539 Checker$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 04:39:17,957 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 04:39:23,076 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 04:39:27,910 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.88s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 04:39:32,691 WARN L539 Checker$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 04:39:36,730 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 04:39:40,946 WARN L539 Checker$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 04:39:43,845 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.62s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 04:39:57,789 WARN L539 Checker$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 04:40:10,018 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 04:40:13,772 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.74s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 04:40:18,323 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 04:40:21,037 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.64s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 04:40:26,823 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 04:40:31,112 WARN L539 Checker$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 04:40:37,010 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 04:40:39,357 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 04:40:43,735 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 04:40:48,379 WARN L539 Checker$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 04:40:53,859 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 04:40:56,749 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.83s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 04:41:01,073 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 04:41:06,871 WARN L539 Checker$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 04:41:11,139 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 04:41:15,254 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 04:41:19,797 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 04:41:24,230 WARN L539 Checker$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 04:41:30,284 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 04:41:32,183 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.70s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 04:41:36,327 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 04:41:40,350 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0]