./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/hard-ll_unwindbound10.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_a4d9e400-6823-4842-a47a-67e380efafb5/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d9e400-6823-4842-a47a-67e380efafb5/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_a4d9e400-6823-4842-a47a-67e380efafb5/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d9e400-6823-4842-a47a-67e380efafb5/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/hard-ll_unwindbound10.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d9e400-6823-4842-a47a-67e380efafb5/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_a4d9e400-6823-4842-a47a-67e380efafb5/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 c8cdca66dc863bfa94d37a0903946c6b89240a08b13e8fd34226289180db2a40 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 03:30:29,854 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 03:30:29,920 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d9e400-6823-4842-a47a-67e380efafb5/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-29 03:30:29,925 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 03:30:29,926 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 03:30:29,950 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 03:30:29,951 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 03:30:29,951 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 03:30:29,952 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 03:30:29,952 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 03:30:29,953 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 03:30:29,953 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 03:30:29,954 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 03:30:29,955 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 03:30:29,955 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 03:30:29,956 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 03:30:29,956 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 03:30:29,957 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 03:30:29,957 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 03:30:29,958 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 03:30:29,958 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 03:30:29,960 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 03:30:29,960 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 03:30:29,960 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 03:30:29,961 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-29 03:30:29,961 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-29 03:30:29,961 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 03:30:29,962 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 03:30:29,962 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 03:30:29,963 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 03:30:29,963 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 03:30:29,963 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 03:30:29,964 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 03:30:29,964 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 03:30:29,965 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 03:30:29,965 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 03:30:29,965 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 03:30:29,966 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 03:30:29,966 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 03:30:29,966 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 03:30:29,967 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 03:30:29,968 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 03:30:29,968 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 03:30:29,969 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 03:30:29,969 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_a4d9e400-6823-4842-a47a-67e380efafb5/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d9e400-6823-4842-a47a-67e380efafb5/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c8cdca66dc863bfa94d37a0903946c6b89240a08b13e8fd34226289180db2a40 [2023-11-29 03:30:30,200 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 03:30:30,221 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 03:30:30,224 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 03:30:30,225 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 03:30:30,225 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 03:30:30,226 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d9e400-6823-4842-a47a-67e380efafb5/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/nla-digbench-scaling/hard-ll_unwindbound10.c [2023-11-29 03:30:33,118 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 03:30:33,276 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 03:30:33,277 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d9e400-6823-4842-a47a-67e380efafb5/sv-benchmarks/c/nla-digbench-scaling/hard-ll_unwindbound10.c [2023-11-29 03:30:33,284 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d9e400-6823-4842-a47a-67e380efafb5/bin/uautomizer-verify-BQ2R08f2Ya/data/59a835e63/cf52075b786041eab765f820a37e2b1a/FLAGd0fbec0ac [2023-11-29 03:30:33,297 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d9e400-6823-4842-a47a-67e380efafb5/bin/uautomizer-verify-BQ2R08f2Ya/data/59a835e63/cf52075b786041eab765f820a37e2b1a [2023-11-29 03:30:33,300 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 03:30:33,302 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 03:30:33,303 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 03:30:33,303 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 03:30:33,308 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 03:30:33,309 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 03:30:33" (1/1) ... [2023-11-29 03:30:33,310 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4df8f0e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:30:33, skipping insertion in model container [2023-11-29 03:30:33,310 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 03:30:33" (1/1) ... [2023-11-29 03:30:33,332 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 03:30:33,514 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 03:30:33,525 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 03:30:33,546 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 03:30:33,561 INFO L206 MainTranslator]: Completed translation [2023-11-29 03:30:33,561 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:30:33 WrapperNode [2023-11-29 03:30:33,561 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 03:30:33,563 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 03:30:33,563 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 03:30:33,563 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 03:30:33,570 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:30:33" (1/1) ... [2023-11-29 03:30:33,577 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:30:33" (1/1) ... [2023-11-29 03:30:33,603 INFO L138 Inliner]: procedures = 14, calls = 16, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 100 [2023-11-29 03:30:33,603 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 03:30:33,604 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 03:30:33,604 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 03:30:33,604 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 03:30:33,615 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:30:33" (1/1) ... [2023-11-29 03:30:33,616 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:30:33" (1/1) ... [2023-11-29 03:30:33,617 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:30:33" (1/1) ... [2023-11-29 03:30:33,630 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 03:30:33,630 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:30:33" (1/1) ... [2023-11-29 03:30:33,631 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:30:33" (1/1) ... [2023-11-29 03:30:33,634 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:30:33" (1/1) ... [2023-11-29 03:30:33,637 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:30:33" (1/1) ... [2023-11-29 03:30:33,639 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:30:33" (1/1) ... [2023-11-29 03:30:33,640 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:30:33" (1/1) ... [2023-11-29 03:30:33,642 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 03:30:33,643 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 03:30:33,643 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 03:30:33,643 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 03:30:33,644 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:30:33" (1/1) ... [2023-11-29 03:30:33,650 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 03:30:33,661 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d9e400-6823-4842-a47a-67e380efafb5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:30:33,674 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d9e400-6823-4842-a47a-67e380efafb5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 03:30:33,678 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d9e400-6823-4842-a47a-67e380efafb5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 03:30:33,709 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 03:30:33,709 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-29 03:30:33,709 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 03:30:33,709 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 03:30:33,710 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-29 03:30:33,710 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-29 03:30:33,782 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 03:30:33,784 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 03:30:34,051 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 03:30:34,077 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 03:30:34,078 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-29 03:30:34,078 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 03:30:34 BoogieIcfgContainer [2023-11-29 03:30:34,079 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 03:30:34,082 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 03:30:34,082 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 03:30:34,086 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 03:30:34,086 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 03:30:33" (1/3) ... [2023-11-29 03:30:34,087 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b86e2b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 03:30:34, skipping insertion in model container [2023-11-29 03:30:34,087 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:30:33" (2/3) ... [2023-11-29 03:30:34,087 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b86e2b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 03:30:34, skipping insertion in model container [2023-11-29 03:30:34,088 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 03:30:34" (3/3) ... [2023-11-29 03:30:34,089 INFO L112 eAbstractionObserver]: Analyzing ICFG hard-ll_unwindbound10.c [2023-11-29 03:30:34,108 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 03:30:34,109 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 28 error locations. [2023-11-29 03:30:34,166 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 03:30:34,173 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;@127826db, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 03:30:34,173 INFO L358 AbstractCegarLoop]: Starting to check reachability of 28 error locations. [2023-11-29 03:30:34,177 INFO L276 IsEmpty]: Start isEmpty. Operand has 79 states, 42 states have (on average 1.880952380952381) internal successors, (79), 70 states have internal predecessors, (79), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-11-29 03:30:34,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-29 03:30:34,182 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:30:34,183 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-11-29 03:30:34,183 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-29 03:30:34,188 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:30:34,189 INFO L85 PathProgramCache]: Analyzing trace with hash 163621270, now seen corresponding path program 1 times [2023-11-29 03:30:34,202 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:30:34,203 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1864502715] [2023-11-29 03:30:34,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:30:34,203 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:30:34,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:30:34,312 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:30:34,312 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:30:34,312 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1864502715] [2023-11-29 03:30:34,313 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1864502715] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:30:34,313 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:30:34,313 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 03:30:34,315 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2019581146] [2023-11-29 03:30:34,315 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:30:34,320 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-29 03:30:34,320 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:30:34,352 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-29 03:30:34,353 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-29 03:30:34,355 INFO L87 Difference]: Start difference. First operand has 79 states, 42 states have (on average 1.880952380952381) internal successors, (79), 70 states have internal predecessors, (79), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) Second operand has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:30:34,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:30:34,392 INFO L93 Difference]: Finished difference Result 156 states and 190 transitions. [2023-11-29 03:30:34,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-29 03:30:34,395 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2023-11-29 03:30:34,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:30:34,404 INFO L225 Difference]: With dead ends: 156 [2023-11-29 03:30:34,404 INFO L226 Difference]: Without dead ends: 75 [2023-11-29 03:30:34,408 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 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 03:30:34,412 INFO L413 NwaCegarLoop]: 87 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, 87 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 03:30:34,413 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 87 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 03:30:34,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2023-11-29 03:30:34,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 75. [2023-11-29 03:30:34,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 41 states have (on average 1.7804878048780488) internal successors, (73), 68 states have internal predecessors, (73), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-29 03:30:34,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 83 transitions. [2023-11-29 03:30:34,449 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 83 transitions. Word has length 5 [2023-11-29 03:30:34,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:30:34,450 INFO L495 AbstractCegarLoop]: Abstraction has 75 states and 83 transitions. [2023-11-29 03:30:34,450 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:30:34,450 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 83 transitions. [2023-11-29 03:30:34,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-29 03:30:34,451 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:30:34,451 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-11-29 03:30:34,451 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-29 03:30:34,452 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-29 03:30:34,452 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:30:34,453 INFO L85 PathProgramCache]: Analyzing trace with hash 163680852, now seen corresponding path program 1 times [2023-11-29 03:30:34,453 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:30:34,453 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1022159297] [2023-11-29 03:30:34,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:30:34,454 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:30:34,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:30:34,555 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:30:34,555 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:30:34,556 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1022159297] [2023-11-29 03:30:34,556 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1022159297] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:30:34,556 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:30:34,556 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 03:30:34,557 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [914387309] [2023-11-29 03:30:34,557 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:30:34,558 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 03:30:34,558 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:30:34,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 03:30:34,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 03:30:34,560 INFO L87 Difference]: Start difference. First operand 75 states and 83 transitions. Second operand has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:30:34,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:30:34,618 INFO L93 Difference]: Finished difference Result 131 states and 143 transitions. [2023-11-29 03:30:34,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 03:30:34,619 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2023-11-29 03:30:34,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:30:34,621 INFO L225 Difference]: With dead ends: 131 [2023-11-29 03:30:34,621 INFO L226 Difference]: Without dead ends: 79 [2023-11-29 03:30:34,622 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 03:30:34,624 INFO L413 NwaCegarLoop]: 78 mSDtfsCounter, 4 mSDsluCounter, 150 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 228 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 03:30:34,625 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 228 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 03:30:34,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2023-11-29 03:30:34,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 79. [2023-11-29 03:30:34,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79 states, 45 states have (on average 1.711111111111111) internal successors, (77), 72 states have internal predecessors, (77), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-29 03:30:34,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 87 transitions. [2023-11-29 03:30:34,636 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 87 transitions. Word has length 5 [2023-11-29 03:30:34,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:30:34,637 INFO L495 AbstractCegarLoop]: Abstraction has 79 states and 87 transitions. [2023-11-29 03:30:34,637 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:30:34,637 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 87 transitions. [2023-11-29 03:30:34,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-11-29 03:30:34,638 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:30:34,638 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:30:34,639 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-29 03:30:34,639 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-29 03:30:34,640 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:30:34,640 INFO L85 PathProgramCache]: Analyzing trace with hash -1612836388, now seen corresponding path program 1 times [2023-11-29 03:30:34,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:30:34,640 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [155354903] [2023-11-29 03:30:34,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:30:34,641 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:30:34,660 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:30:34,660 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1720108324] [2023-11-29 03:30:34,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:30:34,661 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:30:34,661 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d9e400-6823-4842-a47a-67e380efafb5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:30:34,663 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d9e400-6823-4842-a47a-67e380efafb5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:30:34,676 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d9e400-6823-4842-a47a-67e380efafb5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-29 03:30:34,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:30:34,735 INFO L262 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-29 03:30:34,741 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:30:34,895 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 03:30:34,896 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:30:34,896 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:30:34,896 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [155354903] [2023-11-29 03:30:34,896 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:30:34,897 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1720108324] [2023-11-29 03:30:34,897 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1720108324] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:30:34,897 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:30:34,897 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 03:30:34,898 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [191135101] [2023-11-29 03:30:34,898 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:30:34,898 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 03:30:34,899 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:30:34,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 03:30:34,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-29 03:30:34,900 INFO L87 Difference]: Start difference. First operand 79 states and 87 transitions. Second operand has 5 states, 4 states have (on average 2.75) internal successors, (11), 5 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 03:30:35,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:30:35,063 INFO L93 Difference]: Finished difference Result 172 states and 192 transitions. [2023-11-29 03:30:35,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 03:30:35,064 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 5 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 18 [2023-11-29 03:30:35,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:30:35,066 INFO L225 Difference]: With dead ends: 172 [2023-11-29 03:30:35,066 INFO L226 Difference]: Without dead ends: 118 [2023-11-29 03:30:35,067 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-11-29 03:30:35,068 INFO L413 NwaCegarLoop]: 63 mSDtfsCounter, 135 mSDsluCounter, 103 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 166 SdHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 03:30:35,069 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [143 Valid, 166 Invalid, 97 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 03:30:35,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2023-11-29 03:30:35,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 102. [2023-11-29 03:30:35,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 63 states have (on average 1.6666666666666667) internal successors, (105), 90 states have internal predecessors, (105), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-11-29 03:30:35,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 125 transitions. [2023-11-29 03:30:35,084 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 125 transitions. Word has length 18 [2023-11-29 03:30:35,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:30:35,085 INFO L495 AbstractCegarLoop]: Abstraction has 102 states and 125 transitions. [2023-11-29 03:30:35,086 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 5 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 03:30:35,086 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 125 transitions. [2023-11-29 03:30:35,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-11-29 03:30:35,087 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:30:35,087 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:30:35,100 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d9e400-6823-4842-a47a-67e380efafb5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-29 03:30:35,288 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d9e400-6823-4842-a47a-67e380efafb5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:30:35,288 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-29 03:30:35,289 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:30:35,289 INFO L85 PathProgramCache]: Analyzing trace with hash -1309924490, now seen corresponding path program 1 times [2023-11-29 03:30:35,289 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:30:35,289 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [24136544] [2023-11-29 03:30:35,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:30:35,290 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:30:35,304 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:30:35,304 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [329729424] [2023-11-29 03:30:35,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:30:35,305 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:30:35,305 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d9e400-6823-4842-a47a-67e380efafb5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:30:35,306 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d9e400-6823-4842-a47a-67e380efafb5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:30:35,310 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d9e400-6823-4842-a47a-67e380efafb5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-29 03:30:35,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:30:35,357 INFO L262 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-29 03:30:35,359 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:30:35,395 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-29 03:30:35,395 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:30:35,395 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:30:35,395 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [24136544] [2023-11-29 03:30:35,395 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:30:35,396 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [329729424] [2023-11-29 03:30:35,396 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [329729424] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:30:35,396 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:30:35,396 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 03:30:35,396 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2088813482] [2023-11-29 03:30:35,397 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:30:35,397 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 03:30:35,397 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:30:35,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 03:30:35,398 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 03:30:35,398 INFO L87 Difference]: Start difference. First operand 102 states and 125 transitions. Second operand has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-29 03:30:35,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:30:35,438 INFO L93 Difference]: Finished difference Result 102 states and 125 transitions. [2023-11-29 03:30:35,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 03:30:35,439 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 26 [2023-11-29 03:30:35,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:30:35,441 INFO L225 Difference]: With dead ends: 102 [2023-11-29 03:30:35,441 INFO L226 Difference]: Without dead ends: 100 [2023-11-29 03:30:35,441 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 24 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 03:30:35,443 INFO L413 NwaCegarLoop]: 59 mSDtfsCounter, 56 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 68 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 03:30:35,443 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 68 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 03:30:35,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2023-11-29 03:30:35,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 100. [2023-11-29 03:30:35,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 63 states have (on average 1.619047619047619) internal successors, (102), 88 states have internal predecessors, (102), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-11-29 03:30:35,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 122 transitions. [2023-11-29 03:30:35,457 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 122 transitions. Word has length 26 [2023-11-29 03:30:35,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:30:35,458 INFO L495 AbstractCegarLoop]: Abstraction has 100 states and 122 transitions. [2023-11-29 03:30:35,458 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-29 03:30:35,458 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 122 transitions. [2023-11-29 03:30:35,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-11-29 03:30:35,459 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:30:35,459 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:30:35,466 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d9e400-6823-4842-a47a-67e380efafb5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-11-29 03:30:35,664 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d9e400-6823-4842-a47a-67e380efafb5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:30:35,665 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-29 03:30:35,665 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:30:35,665 INFO L85 PathProgramCache]: Analyzing trace with hash -1952954963, now seen corresponding path program 1 times [2023-11-29 03:30:35,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:30:35,665 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [383516433] [2023-11-29 03:30:35,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:30:35,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:30:35,683 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:30:35,684 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1691308242] [2023-11-29 03:30:35,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:30:35,684 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:30:35,684 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d9e400-6823-4842-a47a-67e380efafb5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:30:35,685 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d9e400-6823-4842-a47a-67e380efafb5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:30:35,686 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d9e400-6823-4842-a47a-67e380efafb5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-29 03:30:35,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:30:35,728 INFO L262 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 03:30:35,730 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:30:35,785 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-29 03:30:35,785 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:30:35,785 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:30:35,785 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [383516433] [2023-11-29 03:30:35,786 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:30:35,786 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1691308242] [2023-11-29 03:30:35,786 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1691308242] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:30:35,786 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:30:35,786 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 03:30:35,787 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [999853164] [2023-11-29 03:30:35,787 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:30:35,787 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 03:30:35,787 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:30:35,788 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 03:30:35,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-29 03:30:35,789 INFO L87 Difference]: Start difference. First operand 100 states and 122 transitions. Second operand has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 states have internal predecessors, (15), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-29 03:30:35,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:30:35,844 INFO L93 Difference]: Finished difference Result 100 states and 122 transitions. [2023-11-29 03:30:35,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 03:30:35,844 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 states have internal predecessors, (15), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 27 [2023-11-29 03:30:35,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:30:35,846 INFO L225 Difference]: With dead ends: 100 [2023-11-29 03:30:35,846 INFO L226 Difference]: Without dead ends: 98 [2023-11-29 03:30:35,847 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-11-29 03:30:35,848 INFO L413 NwaCegarLoop]: 66 mSDtfsCounter, 68 mSDsluCounter, 132 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 198 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 03:30:35,848 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 198 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 03:30:35,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2023-11-29 03:30:35,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 98. [2023-11-29 03:30:35,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 63 states have (on average 1.5714285714285714) internal successors, (99), 86 states have internal predecessors, (99), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-11-29 03:30:35,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 119 transitions. [2023-11-29 03:30:35,862 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 119 transitions. Word has length 27 [2023-11-29 03:30:35,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:30:35,863 INFO L495 AbstractCegarLoop]: Abstraction has 98 states and 119 transitions. [2023-11-29 03:30:35,863 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 states have internal predecessors, (15), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-29 03:30:35,864 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 119 transitions. [2023-11-29 03:30:35,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-11-29 03:30:35,865 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:30:35,865 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:30:35,871 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d9e400-6823-4842-a47a-67e380efafb5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-11-29 03:30:36,070 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d9e400-6823-4842-a47a-67e380efafb5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:30:36,071 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-29 03:30:36,071 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:30:36,071 INFO L85 PathProgramCache]: Analyzing trace with hash -1952953457, now seen corresponding path program 1 times [2023-11-29 03:30:36,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:30:36,071 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1490978232] [2023-11-29 03:30:36,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:30:36,071 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:30:36,084 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:30:36,084 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [457237448] [2023-11-29 03:30:36,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:30:36,084 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:30:36,084 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d9e400-6823-4842-a47a-67e380efafb5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:30:36,085 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d9e400-6823-4842-a47a-67e380efafb5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:30:36,094 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d9e400-6823-4842-a47a-67e380efafb5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-29 03:30:36,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:30:36,137 INFO L262 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-29 03:30:36,138 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:30:36,165 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-29 03:30:36,165 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:30:36,166 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:30:36,166 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1490978232] [2023-11-29 03:30:36,166 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:30:36,166 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [457237448] [2023-11-29 03:30:36,166 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [457237448] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:30:36,166 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:30:36,166 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 03:30:36,167 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1806112030] [2023-11-29 03:30:36,167 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:30:36,167 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 03:30:36,167 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:30:36,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 03:30:36,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 03:30:36,168 INFO L87 Difference]: Start difference. First operand 98 states and 119 transitions. Second operand has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-29 03:30:36,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:30:36,217 INFO L93 Difference]: Finished difference Result 112 states and 126 transitions. [2023-11-29 03:30:36,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 03:30:36,218 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 27 [2023-11-29 03:30:36,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:30:36,219 INFO L225 Difference]: With dead ends: 112 [2023-11-29 03:30:36,219 INFO L226 Difference]: Without dead ends: 111 [2023-11-29 03:30:36,220 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 25 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 03:30:36,221 INFO L413 NwaCegarLoop]: 71 mSDtfsCounter, 25 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 128 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 03:30:36,221 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 128 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 03:30:36,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2023-11-29 03:30:36,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 98. [2023-11-29 03:30:36,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 63 states have (on average 1.5555555555555556) internal successors, (98), 86 states have internal predecessors, (98), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-11-29 03:30:36,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 118 transitions. [2023-11-29 03:30:36,234 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 118 transitions. Word has length 27 [2023-11-29 03:30:36,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:30:36,235 INFO L495 AbstractCegarLoop]: Abstraction has 98 states and 118 transitions. [2023-11-29 03:30:36,235 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-29 03:30:36,235 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 118 transitions. [2023-11-29 03:30:36,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-11-29 03:30:36,236 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:30:36,236 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:30:36,247 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d9e400-6823-4842-a47a-67e380efafb5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-11-29 03:30:36,447 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d9e400-6823-4842-a47a-67e380efafb5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:30:36,447 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-29 03:30:36,447 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:30:36,448 INFO L85 PathProgramCache]: Analyzing trace with hash -412061625, now seen corresponding path program 1 times [2023-11-29 03:30:36,448 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:30:36,448 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [533677272] [2023-11-29 03:30:36,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:30:36,448 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:30:36,458 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:30:36,458 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [869866849] [2023-11-29 03:30:36,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:30:36,458 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:30:36,459 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d9e400-6823-4842-a47a-67e380efafb5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:30:36,459 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d9e400-6823-4842-a47a-67e380efafb5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:30:36,460 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d9e400-6823-4842-a47a-67e380efafb5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-29 03:30:36,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:30:36,500 INFO L262 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 03:30:36,502 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:30:36,559 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-29 03:30:36,559 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:30:36,560 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:30:36,560 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [533677272] [2023-11-29 03:30:36,560 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:30:36,560 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [869866849] [2023-11-29 03:30:36,560 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [869866849] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:30:36,560 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:30:36,560 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 03:30:36,561 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [60524567] [2023-11-29 03:30:36,561 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:30:36,561 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 03:30:36,561 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:30:36,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 03:30:36,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-29 03:30:36,562 INFO L87 Difference]: Start difference. First operand 98 states and 118 transitions. Second operand has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-29 03:30:36,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:30:36,628 INFO L93 Difference]: Finished difference Result 107 states and 127 transitions. [2023-11-29 03:30:36,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 03:30:36,629 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 28 [2023-11-29 03:30:36,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:30:36,630 INFO L225 Difference]: With dead ends: 107 [2023-11-29 03:30:36,630 INFO L226 Difference]: Without dead ends: 106 [2023-11-29 03:30:36,631 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-11-29 03:30:36,632 INFO L413 NwaCegarLoop]: 67 mSDtfsCounter, 20 mSDsluCounter, 174 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 241 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 03:30:36,632 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 241 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 03:30:36,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2023-11-29 03:30:36,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 105. [2023-11-29 03:30:36,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 69 states have (on average 1.4927536231884058) internal successors, (103), 92 states have internal predecessors, (103), 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 03:30:36,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 123 transitions. [2023-11-29 03:30:36,644 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 123 transitions. Word has length 28 [2023-11-29 03:30:36,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:30:36,645 INFO L495 AbstractCegarLoop]: Abstraction has 105 states and 123 transitions. [2023-11-29 03:30:36,645 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-29 03:30:36,645 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 123 transitions. [2023-11-29 03:30:36,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-11-29 03:30:36,646 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:30:36,647 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:30:36,653 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d9e400-6823-4842-a47a-67e380efafb5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-11-29 03:30:36,852 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d9e400-6823-4842-a47a-67e380efafb5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:30:36,852 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-29 03:30:36,853 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:30:36,853 INFO L85 PathProgramCache]: Analyzing trace with hash -854227561, now seen corresponding path program 1 times [2023-11-29 03:30:36,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:30:36,853 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [657034425] [2023-11-29 03:30:36,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:30:36,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:30:36,864 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:30:36,864 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [445733309] [2023-11-29 03:30:36,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:30:36,865 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:30:36,865 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d9e400-6823-4842-a47a-67e380efafb5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:30:36,866 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d9e400-6823-4842-a47a-67e380efafb5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:30:36,867 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d9e400-6823-4842-a47a-67e380efafb5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-29 03:30:36,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:30:36,916 INFO L262 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 03:30:36,918 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:30:36,981 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-29 03:30:36,982 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:30:36,982 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:30:36,982 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [657034425] [2023-11-29 03:30:36,982 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:30:36,982 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [445733309] [2023-11-29 03:30:36,982 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [445733309] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:30:36,983 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:30:36,983 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 03:30:36,983 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [342412224] [2023-11-29 03:30:36,983 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:30:36,984 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 03:30:36,984 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:30:36,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 03:30:36,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-29 03:30:36,985 INFO L87 Difference]: Start difference. First operand 105 states and 123 transitions. Second operand has 6 states, 6 states have (on average 3.0) internal successors, (18), 5 states have internal predecessors, (18), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-29 03:30:37,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:30:37,064 INFO L93 Difference]: Finished difference Result 121 states and 137 transitions. [2023-11-29 03:30:37,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 03:30:37,065 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.0) internal successors, (18), 5 states have internal predecessors, (18), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 30 [2023-11-29 03:30:37,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:30:37,066 INFO L225 Difference]: With dead ends: 121 [2023-11-29 03:30:37,066 INFO L226 Difference]: Without dead ends: 113 [2023-11-29 03:30:37,067 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2023-11-29 03:30:37,067 INFO L413 NwaCegarLoop]: 70 mSDtfsCounter, 13 mSDsluCounter, 270 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 340 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 03:30:37,068 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 340 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 03:30:37,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2023-11-29 03:30:37,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 109. [2023-11-29 03:30:37,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 72 states have (on average 1.4583333333333333) internal successors, (105), 95 states have internal predecessors, (105), 10 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-11-29 03:30:37,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 125 transitions. [2023-11-29 03:30:37,077 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 125 transitions. Word has length 30 [2023-11-29 03:30:37,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:30:37,078 INFO L495 AbstractCegarLoop]: Abstraction has 109 states and 125 transitions. [2023-11-29 03:30:37,078 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.0) internal successors, (18), 5 states have internal predecessors, (18), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-29 03:30:37,078 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 125 transitions. [2023-11-29 03:30:37,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-11-29 03:30:37,079 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:30:37,079 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:30:37,084 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d9e400-6823-4842-a47a-67e380efafb5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-11-29 03:30:37,284 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d9e400-6823-4842-a47a-67e380efafb5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:30:37,284 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-29 03:30:37,285 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:30:37,285 INFO L85 PathProgramCache]: Analyzing trace with hash -854227543, now seen corresponding path program 1 times [2023-11-29 03:30:37,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:30:37,285 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1721382732] [2023-11-29 03:30:37,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:30:37,285 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:30:37,295 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:30:37,296 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [643196504] [2023-11-29 03:30:37,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:30:37,296 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:30:37,296 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d9e400-6823-4842-a47a-67e380efafb5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:30:37,297 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d9e400-6823-4842-a47a-67e380efafb5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:30:37,300 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d9e400-6823-4842-a47a-67e380efafb5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-29 03:30:37,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:30:37,358 INFO L262 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 03:30:37,362 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:30:37,491 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-29 03:30:37,491 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:30:37,491 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:30:37,492 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1721382732] [2023-11-29 03:30:37,492 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:30:37,492 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [643196504] [2023-11-29 03:30:37,492 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [643196504] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:30:37,492 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:30:37,492 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 03:30:37,492 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [273631396] [2023-11-29 03:30:37,493 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:30:37,493 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 03:30:37,493 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:30:37,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 03:30:37,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 03:30:37,494 INFO L87 Difference]: Start difference. First operand 109 states and 125 transitions. Second operand has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-29 03:30:37,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:30:37,638 INFO L93 Difference]: Finished difference Result 121 states and 132 transitions. [2023-11-29 03:30:37,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 03:30:37,638 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 30 [2023-11-29 03:30:37,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:30:37,640 INFO L225 Difference]: With dead ends: 121 [2023-11-29 03:30:37,640 INFO L226 Difference]: Without dead ends: 119 [2023-11-29 03:30:37,640 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 03:30:37,641 INFO L413 NwaCegarLoop]: 64 mSDtfsCounter, 39 mSDsluCounter, 80 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 144 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 03:30:37,641 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 144 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 03:30:37,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2023-11-29 03:30:37,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 109. [2023-11-29 03:30:37,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 72 states have (on average 1.4305555555555556) internal successors, (103), 95 states have internal predecessors, (103), 10 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-11-29 03:30:37,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 123 transitions. [2023-11-29 03:30:37,652 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 123 transitions. Word has length 30 [2023-11-29 03:30:37,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:30:37,653 INFO L495 AbstractCegarLoop]: Abstraction has 109 states and 123 transitions. [2023-11-29 03:30:37,653 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-29 03:30:37,653 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 123 transitions. [2023-11-29 03:30:37,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2023-11-29 03:30:37,654 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:30:37,654 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:30:37,660 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d9e400-6823-4842-a47a-67e380efafb5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-11-29 03:30:37,856 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d9e400-6823-4842-a47a-67e380efafb5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:30:37,857 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-29 03:30:37,857 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:30:37,857 INFO L85 PathProgramCache]: Analyzing trace with hash -711249964, now seen corresponding path program 1 times [2023-11-29 03:30:37,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:30:37,857 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1426853033] [2023-11-29 03:30:37,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:30:37,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:30:37,867 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:30:37,867 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1314058537] [2023-11-29 03:30:37,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:30:37,867 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:30:37,868 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d9e400-6823-4842-a47a-67e380efafb5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:30:37,869 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d9e400-6823-4842-a47a-67e380efafb5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:30:37,873 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d9e400-6823-4842-a47a-67e380efafb5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-29 03:30:37,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:30:37,927 INFO L262 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 03:30:37,928 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:30:38,047 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-29 03:30:38,048 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:30:38,048 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:30:38,048 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1426853033] [2023-11-29 03:30:38,048 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:30:38,048 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1314058537] [2023-11-29 03:30:38,049 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1314058537] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:30:38,049 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:30:38,049 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 03:30:38,049 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1428695496] [2023-11-29 03:30:38,049 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:30:38,050 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 03:30:38,050 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:30:38,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 03:30:38,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 03:30:38,051 INFO L87 Difference]: Start difference. First operand 109 states and 123 transitions. Second operand has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-29 03:30:38,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:30:38,181 INFO L93 Difference]: Finished difference Result 119 states and 130 transitions. [2023-11-29 03:30:38,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 03:30:38,182 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 31 [2023-11-29 03:30:38,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:30:38,183 INFO L225 Difference]: With dead ends: 119 [2023-11-29 03:30:38,183 INFO L226 Difference]: Without dead ends: 118 [2023-11-29 03:30:38,184 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 03:30:38,184 INFO L413 NwaCegarLoop]: 65 mSDtfsCounter, 36 mSDsluCounter, 80 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 145 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 03:30:38,185 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 145 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 03:30:38,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2023-11-29 03:30:38,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 109. [2023-11-29 03:30:38,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 72 states have (on average 1.4166666666666667) internal successors, (102), 95 states have internal predecessors, (102), 10 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-11-29 03:30:38,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 122 transitions. [2023-11-29 03:30:38,195 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 122 transitions. Word has length 31 [2023-11-29 03:30:38,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:30:38,195 INFO L495 AbstractCegarLoop]: Abstraction has 109 states and 122 transitions. [2023-11-29 03:30:38,196 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-29 03:30:38,196 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 122 transitions. [2023-11-29 03:30:38,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-29 03:30:38,197 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:30:38,197 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:30:38,203 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d9e400-6823-4842-a47a-67e380efafb5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2023-11-29 03:30:38,400 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d9e400-6823-4842-a47a-67e380efafb5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-11-29 03:30:38,400 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-29 03:30:38,401 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:30:38,401 INFO L85 PathProgramCache]: Analyzing trace with hash -420612963, now seen corresponding path program 1 times [2023-11-29 03:30:38,401 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:30:38,401 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [352031505] [2023-11-29 03:30:38,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:30:38,401 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:30:38,409 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:30:38,409 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1609987670] [2023-11-29 03:30:38,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:30:38,410 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:30:38,410 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d9e400-6823-4842-a47a-67e380efafb5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:30:38,411 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d9e400-6823-4842-a47a-67e380efafb5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:30:38,412 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d9e400-6823-4842-a47a-67e380efafb5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-29 03:30:38,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:30:38,451 INFO L262 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 03:30:38,453 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:30:38,504 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-29 03:30:38,504 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:30:38,504 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:30:38,504 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [352031505] [2023-11-29 03:30:38,504 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:30:38,504 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1609987670] [2023-11-29 03:30:38,505 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1609987670] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:30:38,505 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:30:38,505 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 03:30:38,505 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1567942215] [2023-11-29 03:30:38,505 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:30:38,505 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 03:30:38,506 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:30:38,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 03:30:38,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-29 03:30:38,507 INFO L87 Difference]: Start difference. First operand 109 states and 122 transitions. Second operand has 5 states, 4 states have (on average 5.0) internal successors, (20), 5 states have internal predecessors, (20), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-29 03:30:38,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:30:38,556 INFO L93 Difference]: Finished difference Result 109 states and 122 transitions. [2023-11-29 03:30:38,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 03:30:38,556 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 5.0) internal successors, (20), 5 states have internal predecessors, (20), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 32 [2023-11-29 03:30:38,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:30:38,557 INFO L225 Difference]: With dead ends: 109 [2023-11-29 03:30:38,557 INFO L226 Difference]: Without dead ends: 108 [2023-11-29 03:30:38,558 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-11-29 03:30:38,558 INFO L413 NwaCegarLoop]: 71 mSDtfsCounter, 14 mSDsluCounter, 184 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 255 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 03:30:38,559 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 255 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 03:30:38,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2023-11-29 03:30:38,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 108. [2023-11-29 03:30:38,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108 states, 72 states have (on average 1.4027777777777777) internal successors, (101), 94 states have internal predecessors, (101), 10 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-11-29 03:30:38,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 121 transitions. [2023-11-29 03:30:38,566 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 121 transitions. Word has length 32 [2023-11-29 03:30:38,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:30:38,567 INFO L495 AbstractCegarLoop]: Abstraction has 108 states and 121 transitions. [2023-11-29 03:30:38,567 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 5.0) internal successors, (20), 5 states have internal predecessors, (20), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-29 03:30:38,567 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 121 transitions. [2023-11-29 03:30:38,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2023-11-29 03:30:38,568 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:30:38,568 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-11-29 03:30:38,573 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d9e400-6823-4842-a47a-67e380efafb5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2023-11-29 03:30:38,768 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d9e400-6823-4842-a47a-67e380efafb5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:30:38,769 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-29 03:30:38,769 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:30:38,769 INFO L85 PathProgramCache]: Analyzing trace with hash -611412298, now seen corresponding path program 1 times [2023-11-29 03:30:38,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:30:38,770 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [560633972] [2023-11-29 03:30:38,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:30:38,770 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:30:38,779 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:30:38,779 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [767310742] [2023-11-29 03:30:38,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:30:38,779 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:30:38,780 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d9e400-6823-4842-a47a-67e380efafb5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:30:38,781 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d9e400-6823-4842-a47a-67e380efafb5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:30:38,800 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d9e400-6823-4842-a47a-67e380efafb5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-11-29 03:30:38,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:30:38,828 INFO L262 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 03:30:38,829 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:30:38,922 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-29 03:30:38,923 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:30:38,923 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:30:38,923 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [560633972] [2023-11-29 03:30:38,923 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:30:38,923 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [767310742] [2023-11-29 03:30:38,923 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [767310742] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:30:38,923 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:30:38,923 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 03:30:38,924 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [274669044] [2023-11-29 03:30:38,924 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:30:38,924 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 03:30:38,924 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:30:38,925 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 03:30:38,925 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 03:30:38,925 INFO L87 Difference]: Start difference. First operand 108 states and 121 transitions. Second operand has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-29 03:30:39,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:30:39,049 INFO L93 Difference]: Finished difference Result 117 states and 128 transitions. [2023-11-29 03:30:39,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 03:30:39,050 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 33 [2023-11-29 03:30:39,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:30:39,051 INFO L225 Difference]: With dead ends: 117 [2023-11-29 03:30:39,051 INFO L226 Difference]: Without dead ends: 112 [2023-11-29 03:30:39,051 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 03:30:39,052 INFO L413 NwaCegarLoop]: 65 mSDtfsCounter, 26 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 136 SdHoareTripleChecker+Invalid, 108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 03:30:39,052 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 136 Invalid, 108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 03:30:39,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2023-11-29 03:30:39,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 111. [2023-11-29 03:30:39,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 75 states have (on average 1.3733333333333333) internal successors, (103), 97 states have internal predecessors, (103), 10 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-11-29 03:30:39,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 123 transitions. [2023-11-29 03:30:39,062 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 123 transitions. Word has length 33 [2023-11-29 03:30:39,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:30:39,062 INFO L495 AbstractCegarLoop]: Abstraction has 111 states and 123 transitions. [2023-11-29 03:30:39,063 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-29 03:30:39,063 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 123 transitions. [2023-11-29 03:30:39,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2023-11-29 03:30:39,064 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:30:39,064 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-11-29 03:30:39,070 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d9e400-6823-4842-a47a-67e380efafb5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2023-11-29 03:30:39,268 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d9e400-6823-4842-a47a-67e380efafb5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2023-11-29 03:30:39,268 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-29 03:30:39,269 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:30:39,269 INFO L85 PathProgramCache]: Analyzing trace with hash 529580956, now seen corresponding path program 1 times [2023-11-29 03:30:39,269 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:30:39,269 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [701299850] [2023-11-29 03:30:39,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:30:39,269 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:30:39,276 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:30:39,276 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1920376079] [2023-11-29 03:30:39,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:30:39,277 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:30:39,277 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d9e400-6823-4842-a47a-67e380efafb5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:30:39,278 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d9e400-6823-4842-a47a-67e380efafb5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:30:39,279 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d9e400-6823-4842-a47a-67e380efafb5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-11-29 03:30:39,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:30:39,320 INFO L262 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 03:30:39,322 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:30:39,376 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-29 03:30:39,376 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:30:39,449 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-29 03:30:39,449 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:30:39,450 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [701299850] [2023-11-29 03:30:39,450 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:30:39,450 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1920376079] [2023-11-29 03:30:39,450 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1920376079] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 03:30:39,450 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 03:30:39,450 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6] total 10 [2023-11-29 03:30:39,450 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [943172818] [2023-11-29 03:30:39,450 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 03:30:39,451 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 03:30:39,451 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:30:39,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 03:30:39,452 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2023-11-29 03:30:39,452 INFO L87 Difference]: Start difference. First operand 111 states and 123 transitions. Second operand has 10 states, 10 states have (on average 4.5) internal successors, (45), 10 states have internal predecessors, (45), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-29 03:30:39,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:30:39,588 INFO L93 Difference]: Finished difference Result 215 states and 239 transitions. [2023-11-29 03:30:39,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-29 03:30:39,589 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.5) internal successors, (45), 10 states have internal predecessors, (45), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 36 [2023-11-29 03:30:39,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:30:39,590 INFO L225 Difference]: With dead ends: 215 [2023-11-29 03:30:39,590 INFO L226 Difference]: Without dead ends: 167 [2023-11-29 03:30:39,591 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=99, Invalid=173, Unknown=0, NotChecked=0, Total=272 [2023-11-29 03:30:39,591 INFO L413 NwaCegarLoop]: 72 mSDtfsCounter, 61 mSDsluCounter, 237 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 309 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 03:30:39,592 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 309 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 03:30:39,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167 states. [2023-11-29 03:30:39,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 151. [2023-11-29 03:30:39,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 151 states, 107 states have (on average 1.3738317757009346) internal successors, (147), 129 states have internal predecessors, (147), 16 states have call successors, (16), 5 states have call predecessors, (16), 5 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2023-11-29 03:30:39,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 179 transitions. [2023-11-29 03:30:39,615 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 179 transitions. Word has length 36 [2023-11-29 03:30:39,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:30:39,615 INFO L495 AbstractCegarLoop]: Abstraction has 151 states and 179 transitions. [2023-11-29 03:30:39,615 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.5) internal successors, (45), 10 states have internal predecessors, (45), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-29 03:30:39,615 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 179 transitions. [2023-11-29 03:30:39,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2023-11-29 03:30:39,617 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:30:39,617 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:30:39,622 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d9e400-6823-4842-a47a-67e380efafb5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2023-11-29 03:30:39,817 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d9e400-6823-4842-a47a-67e380efafb5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2023-11-29 03:30:39,817 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-29 03:30:39,818 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:30:39,818 INFO L85 PathProgramCache]: Analyzing trace with hash -911870819, now seen corresponding path program 1 times [2023-11-29 03:30:39,818 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:30:39,818 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [504932063] [2023-11-29 03:30:39,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:30:39,818 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:30:39,825 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:30:39,826 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [452973666] [2023-11-29 03:30:39,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:30:39,826 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:30:39,826 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d9e400-6823-4842-a47a-67e380efafb5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:30:39,827 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d9e400-6823-4842-a47a-67e380efafb5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:30:39,830 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d9e400-6823-4842-a47a-67e380efafb5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-11-29 03:30:39,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:30:39,872 INFO L262 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-29 03:30:39,874 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:30:40,008 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-11-29 03:30:40,008 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:30:40,008 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:30:40,008 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [504932063] [2023-11-29 03:30:40,008 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:30:40,008 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [452973666] [2023-11-29 03:30:40,008 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [452973666] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:30:40,009 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:30:40,009 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 03:30:40,009 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [575094087] [2023-11-29 03:30:40,009 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:30:40,009 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 03:30:40,010 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:30:40,010 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 03:30:40,010 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-11-29 03:30:40,010 INFO L87 Difference]: Start difference. First operand 151 states and 179 transitions. Second operand has 6 states, 5 states have (on average 4.4) internal successors, (22), 6 states have internal predecessors, (22), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-29 03:30:40,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:30:40,137 INFO L93 Difference]: Finished difference Result 185 states and 217 transitions. [2023-11-29 03:30:40,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 03:30:40,138 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.4) internal successors, (22), 6 states have internal predecessors, (22), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 44 [2023-11-29 03:30:40,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:30:40,139 INFO L225 Difference]: With dead ends: 185 [2023-11-29 03:30:40,139 INFO L226 Difference]: Without dead ends: 173 [2023-11-29 03:30:40,140 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2023-11-29 03:30:40,140 INFO L413 NwaCegarLoop]: 71 mSDtfsCounter, 113 mSDsluCounter, 114 mSDsCounter, 0 mSdLazyCounter, 115 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 185 SdHoareTripleChecker+Invalid, 125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 03:30:40,141 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [118 Valid, 185 Invalid, 125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 115 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 03:30:40,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2023-11-29 03:30:40,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 160. [2023-11-29 03:30:40,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 160 states, 118 states have (on average 1.3305084745762712) internal successors, (157), 136 states have internal predecessors, (157), 18 states have call successors, (18), 5 states have call predecessors, (18), 5 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2023-11-29 03:30:40,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 193 transitions. [2023-11-29 03:30:40,155 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 193 transitions. Word has length 44 [2023-11-29 03:30:40,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:30:40,155 INFO L495 AbstractCegarLoop]: Abstraction has 160 states and 193 transitions. [2023-11-29 03:30:40,155 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.4) internal successors, (22), 6 states have internal predecessors, (22), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-29 03:30:40,155 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 193 transitions. [2023-11-29 03:30:40,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2023-11-29 03:30:40,156 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:30:40,156 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:30:40,162 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d9e400-6823-4842-a47a-67e380efafb5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2023-11-29 03:30:40,360 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d9e400-6823-4842-a47a-67e380efafb5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2023-11-29 03:30:40,360 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-29 03:30:40,361 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:30:40,361 INFO L85 PathProgramCache]: Analyzing trace with hash 1796775742, now seen corresponding path program 1 times [2023-11-29 03:30:40,361 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:30:40,361 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1593420287] [2023-11-29 03:30:40,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:30:40,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:30:40,369 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:30:40,369 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [928849150] [2023-11-29 03:30:40,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:30:40,369 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:30:40,369 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d9e400-6823-4842-a47a-67e380efafb5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:30:40,370 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d9e400-6823-4842-a47a-67e380efafb5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:30:40,371 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d9e400-6823-4842-a47a-67e380efafb5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-11-29 03:30:40,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:30:40,412 INFO L262 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-29 03:30:40,414 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:30:40,555 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-11-29 03:30:40,555 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:30:40,697 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:30:40,697 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1593420287] [2023-11-29 03:30:40,697 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:30:40,697 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [928849150] [2023-11-29 03:30:40,698 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [928849150] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 03:30:40,698 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 03:30:40,698 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2023-11-29 03:30:40,698 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2065098043] [2023-11-29 03:30:40,698 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 03:30:40,699 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 03:30:40,699 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:30:40,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 03:30:40,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2023-11-29 03:30:40,700 INFO L87 Difference]: Start difference. First operand 160 states and 193 transitions. Second operand has 6 states, 5 states have (on average 4.6) internal successors, (23), 6 states have internal predecessors, (23), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-29 03:30:40,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:30:40,876 INFO L93 Difference]: Finished difference Result 235 states and 273 transitions. [2023-11-29 03:30:40,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 03:30:40,876 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.6) internal successors, (23), 6 states have internal predecessors, (23), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 45 [2023-11-29 03:30:40,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:30:40,878 INFO L225 Difference]: With dead ends: 235 [2023-11-29 03:30:40,878 INFO L226 Difference]: Without dead ends: 231 [2023-11-29 03:30:40,879 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2023-11-29 03:30:40,879 INFO L413 NwaCegarLoop]: 55 mSDtfsCounter, 159 mSDsluCounter, 122 mSDsCounter, 0 mSdLazyCounter, 125 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 169 SdHoareTripleChecker+Valid, 177 SdHoareTripleChecker+Invalid, 134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 03:30:40,880 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [169 Valid, 177 Invalid, 134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 125 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 03:30:40,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 231 states. [2023-11-29 03:30:40,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 231 to 195. [2023-11-29 03:30:40,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 195 states, 149 states have (on average 1.3691275167785235) internal successors, (204), 167 states have internal predecessors, (204), 22 states have call successors, (22), 5 states have call predecessors, (22), 5 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2023-11-29 03:30:40,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 248 transitions. [2023-11-29 03:30:40,897 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 248 transitions. Word has length 45 [2023-11-29 03:30:40,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:30:40,897 INFO L495 AbstractCegarLoop]: Abstraction has 195 states and 248 transitions. [2023-11-29 03:30:40,897 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.6) internal successors, (23), 6 states have internal predecessors, (23), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-29 03:30:40,897 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 248 transitions. [2023-11-29 03:30:40,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2023-11-29 03:30:40,898 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:30:40,898 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:30:40,904 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d9e400-6823-4842-a47a-67e380efafb5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2023-11-29 03:30:41,099 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d9e400-6823-4842-a47a-67e380efafb5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2023-11-29 03:30:41,099 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-29 03:30:41,099 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:30:41,099 INFO L85 PathProgramCache]: Analyzing trace with hash 684890327, now seen corresponding path program 1 times [2023-11-29 03:30:41,100 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:30:41,100 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1456995196] [2023-11-29 03:30:41,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:30:41,100 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:30:41,108 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:30:41,108 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [979872785] [2023-11-29 03:30:41,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:30:41,108 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:30:41,108 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d9e400-6823-4842-a47a-67e380efafb5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:30:41,109 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d9e400-6823-4842-a47a-67e380efafb5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:30:41,110 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d9e400-6823-4842-a47a-67e380efafb5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-11-29 03:30:41,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:30:41,155 INFO L262 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 03:30:41,156 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:30:41,213 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-11-29 03:30:41,213 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:30:41,213 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:30:41,214 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1456995196] [2023-11-29 03:30:41,214 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:30:41,214 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [979872785] [2023-11-29 03:30:41,214 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [979872785] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:30:41,214 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:30:41,214 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 03:30:41,214 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [846312840] [2023-11-29 03:30:41,214 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:30:41,215 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 03:30:41,215 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:30:41,215 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 03:30:41,215 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 03:30:41,216 INFO L87 Difference]: Start difference. First operand 195 states and 248 transitions. Second operand has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-11-29 03:30:41,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:30:41,328 INFO L93 Difference]: Finished difference Result 253 states and 323 transitions. [2023-11-29 03:30:41,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 03:30:41,329 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 49 [2023-11-29 03:30:41,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:30:41,331 INFO L225 Difference]: With dead ends: 253 [2023-11-29 03:30:41,332 INFO L226 Difference]: Without dead ends: 236 [2023-11-29 03:30:41,332 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 46 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 03:30:41,333 INFO L413 NwaCegarLoop]: 52 mSDtfsCounter, 58 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 117 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 03:30:41,333 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 117 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 03:30:41,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236 states. [2023-11-29 03:30:41,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236 to 218. [2023-11-29 03:30:41,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 218 states, 170 states have (on average 1.4470588235294117) internal successors, (246), 188 states have internal predecessors, (246), 24 states have call successors, (24), 5 states have call predecessors, (24), 5 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2023-11-29 03:30:41,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 294 transitions. [2023-11-29 03:30:41,352 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 294 transitions. Word has length 49 [2023-11-29 03:30:41,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:30:41,352 INFO L495 AbstractCegarLoop]: Abstraction has 218 states and 294 transitions. [2023-11-29 03:30:41,352 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-11-29 03:30:41,352 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 294 transitions. [2023-11-29 03:30:41,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2023-11-29 03:30:41,353 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:30:41,353 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:30:41,358 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d9e400-6823-4842-a47a-67e380efafb5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2023-11-29 03:30:41,553 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d9e400-6823-4842-a47a-67e380efafb5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2023-11-29 03:30:41,554 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-29 03:30:41,554 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:30:41,554 INFO L85 PathProgramCache]: Analyzing trace with hash 1928131054, now seen corresponding path program 1 times [2023-11-29 03:30:41,554 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:30:41,554 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [320963466] [2023-11-29 03:30:41,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:30:41,554 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:30:41,562 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:30:41,562 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1440196749] [2023-11-29 03:30:41,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:30:41,562 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:30:41,562 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d9e400-6823-4842-a47a-67e380efafb5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:30:41,563 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d9e400-6823-4842-a47a-67e380efafb5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:30:41,564 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d9e400-6823-4842-a47a-67e380efafb5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2023-11-29 03:30:41,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:30:41,608 INFO L262 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 03:30:41,610 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:30:41,648 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2023-11-29 03:30:41,649 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:30:41,702 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2023-11-29 03:30:41,702 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:30:41,702 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [320963466] [2023-11-29 03:30:41,702 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:30:41,702 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1440196749] [2023-11-29 03:30:41,702 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1440196749] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 03:30:41,702 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 03:30:41,702 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2023-11-29 03:30:41,703 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [158542915] [2023-11-29 03:30:41,703 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 03:30:41,703 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 03:30:41,703 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:30:41,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 03:30:41,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-29 03:30:41,704 INFO L87 Difference]: Start difference. First operand 218 states and 294 transitions. Second operand has 6 states, 5 states have (on average 9.4) internal successors, (47), 6 states have internal predecessors, (47), 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 03:30:41,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:30:41,876 INFO L93 Difference]: Finished difference Result 366 states and 462 transitions. [2023-11-29 03:30:41,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 03:30:41,876 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 9.4) internal successors, (47), 6 states have internal predecessors, (47), 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 53 [2023-11-29 03:30:41,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:30:41,879 INFO L225 Difference]: With dead ends: 366 [2023-11-29 03:30:41,879 INFO L226 Difference]: Without dead ends: 364 [2023-11-29 03:30:41,879 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 100 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 03:30:41,880 INFO L413 NwaCegarLoop]: 74 mSDtfsCounter, 133 mSDsluCounter, 199 mSDsCounter, 0 mSdLazyCounter, 132 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 273 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 03:30:41,880 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [141 Valid, 273 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 03:30:41,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 364 states. [2023-11-29 03:30:41,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 364 to 279. [2023-11-29 03:30:41,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 279 states, 222 states have (on average 1.4684684684684686) internal successors, (326), 240 states have internal predecessors, (326), 33 states have call successors, (33), 5 states have call predecessors, (33), 5 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) [2023-11-29 03:30:41,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 279 states to 279 states and 392 transitions. [2023-11-29 03:30:41,904 INFO L78 Accepts]: Start accepts. Automaton has 279 states and 392 transitions. Word has length 53 [2023-11-29 03:30:41,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:30:41,904 INFO L495 AbstractCegarLoop]: Abstraction has 279 states and 392 transitions. [2023-11-29 03:30:41,904 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 9.4) internal successors, (47), 6 states have internal predecessors, (47), 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 03:30:41,904 INFO L276 IsEmpty]: Start isEmpty. Operand 279 states and 392 transitions. [2023-11-29 03:30:41,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2023-11-29 03:30:41,905 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:30:41,905 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 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] [2023-11-29 03:30:41,911 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d9e400-6823-4842-a47a-67e380efafb5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2023-11-29 03:30:42,108 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d9e400-6823-4842-a47a-67e380efafb5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2023-11-29 03:30:42,108 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-29 03:30:42,109 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:30:42,109 INFO L85 PathProgramCache]: Analyzing trace with hash 14831320, now seen corresponding path program 1 times [2023-11-29 03:30:42,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:30:42,109 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1760320715] [2023-11-29 03:30:42,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:30:42,109 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:30:42,115 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:30:42,116 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1313043861] [2023-11-29 03:30:42,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:30:42,116 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:30:42,116 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d9e400-6823-4842-a47a-67e380efafb5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:30:42,117 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d9e400-6823-4842-a47a-67e380efafb5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:30:42,119 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d9e400-6823-4842-a47a-67e380efafb5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2023-11-29 03:30:42,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:30:42,160 INFO L262 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-29 03:30:42,161 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:30:42,235 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-29 03:30:42,236 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:30:42,323 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2023-11-29 03:30:42,323 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:30:42,323 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1760320715] [2023-11-29 03:30:42,323 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:30:42,323 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1313043861] [2023-11-29 03:30:42,324 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1313043861] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 03:30:42,324 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 03:30:42,324 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8] total 14 [2023-11-29 03:30:42,324 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [84258627] [2023-11-29 03:30:42,324 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 03:30:42,324 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-29 03:30:42,325 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:30:42,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-29 03:30:42,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2023-11-29 03:30:42,326 INFO L87 Difference]: Start difference. First operand 279 states and 392 transitions. Second operand has 14 states, 14 states have (on average 4.285714285714286) internal successors, (60), 14 states have internal predecessors, (60), 4 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2023-11-29 03:30:42,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:30:42,583 INFO L93 Difference]: Finished difference Result 336 states and 445 transitions. [2023-11-29 03:30:42,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-11-29 03:30:42,584 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.285714285714286) internal successors, (60), 14 states have internal predecessors, (60), 4 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) Word has length 56 [2023-11-29 03:30:42,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:30:42,586 INFO L225 Difference]: With dead ends: 336 [2023-11-29 03:30:42,586 INFO L226 Difference]: Without dead ends: 324 [2023-11-29 03:30:42,587 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 113 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=180, Invalid=522, Unknown=0, NotChecked=0, Total=702 [2023-11-29 03:30:42,587 INFO L413 NwaCegarLoop]: 65 mSDtfsCounter, 96 mSDsluCounter, 603 mSDsCounter, 0 mSdLazyCounter, 141 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 668 SdHoareTripleChecker+Invalid, 143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 141 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 03:30:42,588 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 668 Invalid, 143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 141 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 03:30:42,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 324 states. [2023-11-29 03:30:42,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 324 to 304. [2023-11-29 03:30:42,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 304 states, 245 states have (on average 1.436734693877551) internal successors, (352), 263 states have internal predecessors, (352), 33 states have call successors, (33), 7 states have call predecessors, (33), 7 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) [2023-11-29 03:30:42,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 304 states to 304 states and 418 transitions. [2023-11-29 03:30:42,610 INFO L78 Accepts]: Start accepts. Automaton has 304 states and 418 transitions. Word has length 56 [2023-11-29 03:30:42,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:30:42,610 INFO L495 AbstractCegarLoop]: Abstraction has 304 states and 418 transitions. [2023-11-29 03:30:42,610 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.285714285714286) internal successors, (60), 14 states have internal predecessors, (60), 4 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2023-11-29 03:30:42,610 INFO L276 IsEmpty]: Start isEmpty. Operand 304 states and 418 transitions. [2023-11-29 03:30:42,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2023-11-29 03:30:42,611 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:30:42,611 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 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] [2023-11-29 03:30:42,617 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d9e400-6823-4842-a47a-67e380efafb5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2023-11-29 03:30:42,811 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d9e400-6823-4842-a47a-67e380efafb5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2023-11-29 03:30:42,812 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-29 03:30:42,812 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:30:42,812 INFO L85 PathProgramCache]: Analyzing trace with hash 14831338, now seen corresponding path program 1 times [2023-11-29 03:30:42,812 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:30:42,812 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [864605480] [2023-11-29 03:30:42,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:30:42,812 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:30:42,820 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:30:42,820 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [423868274] [2023-11-29 03:30:42,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:30:42,821 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:30:42,821 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d9e400-6823-4842-a47a-67e380efafb5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:30:42,822 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d9e400-6823-4842-a47a-67e380efafb5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:30:42,822 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d9e400-6823-4842-a47a-67e380efafb5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2023-11-29 03:30:42,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:30:42,867 INFO L262 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-29 03:30:42,868 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:30:43,052 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2023-11-29 03:30:43,052 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:30:43,300 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2023-11-29 03:30:43,300 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:30:43,300 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [864605480] [2023-11-29 03:30:43,300 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:30:43,300 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [423868274] [2023-11-29 03:30:43,300 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [423868274] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 03:30:43,300 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 03:30:43,300 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2023-11-29 03:30:43,301 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [152130154] [2023-11-29 03:30:43,301 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 03:30:43,301 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 03:30:43,301 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:30:43,302 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 03:30:43,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=53, Unknown=0, NotChecked=0, Total=90 [2023-11-29 03:30:43,302 INFO L87 Difference]: Start difference. First operand 304 states and 418 transitions. Second operand has 10 states, 9 states have (on average 5.888888888888889) internal successors, (53), 10 states have internal predecessors, (53), 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 03:30:43,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:30:43,752 INFO L93 Difference]: Finished difference Result 380 states and 500 transitions. [2023-11-29 03:30:43,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-29 03:30:43,752 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 5.888888888888889) internal successors, (53), 10 states have internal predecessors, (53), 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 56 [2023-11-29 03:30:43,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:30:43,754 INFO L225 Difference]: With dead ends: 380 [2023-11-29 03:30:43,755 INFO L226 Difference]: Without dead ends: 312 [2023-11-29 03:30:43,755 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=76, Invalid=106, Unknown=0, NotChecked=0, Total=182 [2023-11-29 03:30:43,756 INFO L413 NwaCegarLoop]: 49 mSDtfsCounter, 103 mSDsluCounter, 192 mSDsCounter, 0 mSdLazyCounter, 225 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 241 SdHoareTripleChecker+Invalid, 238 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 225 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-29 03:30:43,756 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [108 Valid, 241 Invalid, 238 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 225 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-29 03:30:43,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 312 states. [2023-11-29 03:30:43,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 312 to 297. [2023-11-29 03:30:43,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 297 states, 240 states have (on average 1.4083333333333334) internal successors, (338), 258 states have internal predecessors, (338), 31 states have call successors, (31), 7 states have call predecessors, (31), 7 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2023-11-29 03:30:43,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 297 states to 297 states and 400 transitions. [2023-11-29 03:30:43,784 INFO L78 Accepts]: Start accepts. Automaton has 297 states and 400 transitions. Word has length 56 [2023-11-29 03:30:43,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:30:43,784 INFO L495 AbstractCegarLoop]: Abstraction has 297 states and 400 transitions. [2023-11-29 03:30:43,785 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 5.888888888888889) internal successors, (53), 10 states have internal predecessors, (53), 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 03:30:43,785 INFO L276 IsEmpty]: Start isEmpty. Operand 297 states and 400 transitions. [2023-11-29 03:30:43,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-11-29 03:30:43,786 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:30:43,786 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 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] [2023-11-29 03:30:43,791 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d9e400-6823-4842-a47a-67e380efafb5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2023-11-29 03:30:43,986 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d9e400-6823-4842-a47a-67e380efafb5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:30:43,986 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-29 03:30:43,987 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:30:43,987 INFO L85 PathProgramCache]: Analyzing trace with hash 459771571, now seen corresponding path program 1 times [2023-11-29 03:30:43,987 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:30:43,987 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [982567141] [2023-11-29 03:30:43,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:30:43,987 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:30:43,994 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:30:43,994 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [657230745] [2023-11-29 03:30:43,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:30:43,994 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:30:43,994 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d9e400-6823-4842-a47a-67e380efafb5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:30:43,995 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d9e400-6823-4842-a47a-67e380efafb5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:30:44,002 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d9e400-6823-4842-a47a-67e380efafb5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2023-11-29 03:30:44,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:30:44,047 INFO L262 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-29 03:30:44,048 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:30:44,204 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2023-11-29 03:30:44,204 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:30:44,398 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2023-11-29 03:30:44,399 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:30:44,399 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [982567141] [2023-11-29 03:30:44,399 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:30:44,399 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [657230745] [2023-11-29 03:30:44,399 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [657230745] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 03:30:44,399 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 03:30:44,399 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2023-11-29 03:30:44,399 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [559137549] [2023-11-29 03:30:44,400 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 03:30:44,400 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 03:30:44,400 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:30:44,400 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 03:30:44,401 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=53, Unknown=0, NotChecked=0, Total=90 [2023-11-29 03:30:44,401 INFO L87 Difference]: Start difference. First operand 297 states and 400 transitions. Second operand has 10 states, 9 states have (on average 6.111111111111111) internal successors, (55), 10 states have internal predecessors, (55), 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 03:30:45,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:30:45,612 INFO L93 Difference]: Finished difference Result 315 states and 413 transitions. [2023-11-29 03:30:45,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-29 03:30:45,613 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 6.111111111111111) internal successors, (55), 10 states have internal predecessors, (55), 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 57 [2023-11-29 03:30:45,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:30:45,615 INFO L225 Difference]: With dead ends: 315 [2023-11-29 03:30:45,615 INFO L226 Difference]: Without dead ends: 314 [2023-11-29 03:30:45,616 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=93, Unknown=0, NotChecked=0, Total=156 [2023-11-29 03:30:45,616 INFO L413 NwaCegarLoop]: 50 mSDtfsCounter, 157 mSDsluCounter, 130 mSDsCounter, 0 mSdLazyCounter, 208 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 162 SdHoareTripleChecker+Valid, 180 SdHoareTripleChecker+Invalid, 225 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 208 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-11-29 03:30:45,617 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [162 Valid, 180 Invalid, 225 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 208 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-11-29 03:30:45,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 314 states. [2023-11-29 03:30:45,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 314 to 300. [2023-11-29 03:30:45,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 300 states, 243 states have (on average 1.382716049382716) internal successors, (336), 261 states have internal predecessors, (336), 31 states have call successors, (31), 7 states have call predecessors, (31), 7 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2023-11-29 03:30:45,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 300 states to 300 states and 398 transitions. [2023-11-29 03:30:45,638 INFO L78 Accepts]: Start accepts. Automaton has 300 states and 398 transitions. Word has length 57 [2023-11-29 03:30:45,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:30:45,638 INFO L495 AbstractCegarLoop]: Abstraction has 300 states and 398 transitions. [2023-11-29 03:30:45,638 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 6.111111111111111) internal successors, (55), 10 states have internal predecessors, (55), 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 03:30:45,638 INFO L276 IsEmpty]: Start isEmpty. Operand 300 states and 398 transitions. [2023-11-29 03:30:45,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-11-29 03:30:45,639 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:30:45,639 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 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] [2023-11-29 03:30:45,643 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d9e400-6823-4842-a47a-67e380efafb5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2023-11-29 03:30:45,839 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d9e400-6823-4842-a47a-67e380efafb5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:30:45,839 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-29 03:30:45,840 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:30:45,840 INFO L85 PathProgramCache]: Analyzing trace with hash 1368016908, now seen corresponding path program 1 times [2023-11-29 03:30:45,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:30:45,840 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [728594892] [2023-11-29 03:30:45,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:30:45,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:30:45,845 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:30:45,846 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [871499921] [2023-11-29 03:30:45,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:30:45,846 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:30:45,846 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d9e400-6823-4842-a47a-67e380efafb5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:30:45,847 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d9e400-6823-4842-a47a-67e380efafb5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:30:45,848 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d9e400-6823-4842-a47a-67e380efafb5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2023-11-29 03:30:45,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:30:45,893 INFO L262 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 03:30:45,894 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:30:45,947 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2023-11-29 03:30:45,947 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:30:45,947 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:30:45,948 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [728594892] [2023-11-29 03:30:45,948 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:30:45,948 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [871499921] [2023-11-29 03:30:45,948 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [871499921] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:30:45,948 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:30:45,948 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 03:30:45,948 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [107478607] [2023-11-29 03:30:45,948 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:30:45,949 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 03:30:45,949 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:30:45,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 03:30:45,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-29 03:30:45,949 INFO L87 Difference]: Start difference. First operand 300 states and 398 transitions. Second operand has 6 states, 5 states have (on average 6.2) internal successors, (31), 6 states have internal predecessors, (31), 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 03:30:46,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:30:46,284 INFO L93 Difference]: Finished difference Result 433 states and 560 transitions. [2023-11-29 03:30:46,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 03:30:46,284 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.2) internal successors, (31), 6 states have internal predecessors, (31), 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 58 [2023-11-29 03:30:46,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:30:46,286 INFO L225 Difference]: With dead ends: 433 [2023-11-29 03:30:46,287 INFO L226 Difference]: Without dead ends: 314 [2023-11-29 03:30:46,287 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2023-11-29 03:30:46,288 INFO L413 NwaCegarLoop]: 69 mSDtfsCounter, 86 mSDsluCounter, 228 mSDsCounter, 0 mSdLazyCounter, 215 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 297 SdHoareTripleChecker+Invalid, 228 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 215 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 03:30:46,288 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [88 Valid, 297 Invalid, 228 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 215 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 03:30:46,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 314 states. [2023-11-29 03:30:46,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 314 to 277. [2023-11-29 03:30:46,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 277 states, 225 states have (on average 1.3333333333333333) internal successors, (300), 242 states have internal predecessors, (300), 27 states have call successors, (27), 7 states have call predecessors, (27), 7 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2023-11-29 03:30:46,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 277 states to 277 states and 354 transitions. [2023-11-29 03:30:46,314 INFO L78 Accepts]: Start accepts. Automaton has 277 states and 354 transitions. Word has length 58 [2023-11-29 03:30:46,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:30:46,314 INFO L495 AbstractCegarLoop]: Abstraction has 277 states and 354 transitions. [2023-11-29 03:30:46,315 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.2) internal successors, (31), 6 states have internal predecessors, (31), 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 03:30:46,315 INFO L276 IsEmpty]: Start isEmpty. Operand 277 states and 354 transitions. [2023-11-29 03:30:46,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2023-11-29 03:30:46,315 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:30:46,315 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 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] [2023-11-29 03:30:46,321 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d9e400-6823-4842-a47a-67e380efafb5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2023-11-29 03:30:46,516 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d9e400-6823-4842-a47a-67e380efafb5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2023-11-29 03:30:46,516 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-29 03:30:46,516 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:30:46,516 INFO L85 PathProgramCache]: Analyzing trace with hash -541148715, now seen corresponding path program 1 times [2023-11-29 03:30:46,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:30:46,517 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [425358882] [2023-11-29 03:30:46,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:30:46,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:30:46,524 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:30:46,524 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [323839851] [2023-11-29 03:30:46,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:30:46,525 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:30:46,525 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d9e400-6823-4842-a47a-67e380efafb5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:30:46,525 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d9e400-6823-4842-a47a-67e380efafb5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:30:46,527 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d9e400-6823-4842-a47a-67e380efafb5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2023-11-29 03:30:46,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:30:46,572 INFO L262 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 03:30:46,573 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:30:46,672 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2023-11-29 03:30:46,673 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:30:46,673 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:30:46,673 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [425358882] [2023-11-29 03:30:46,673 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:30:46,673 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [323839851] [2023-11-29 03:30:46,673 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [323839851] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:30:46,673 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:30:46,673 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 03:30:46,673 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1606836113] [2023-11-29 03:30:46,674 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:30:46,674 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 03:30:46,674 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:30:46,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 03:30:46,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 03:30:46,675 INFO L87 Difference]: Start difference. First operand 277 states and 354 transitions. Second operand has 3 states, 2 states have (on average 13.0) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-29 03:30:46,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:30:46,737 INFO L93 Difference]: Finished difference Result 292 states and 361 transitions. [2023-11-29 03:30:46,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 03:30:46,738 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 13.0) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 59 [2023-11-29 03:30:46,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:30:46,739 INFO L225 Difference]: With dead ends: 292 [2023-11-29 03:30:46,739 INFO L226 Difference]: Without dead ends: 284 [2023-11-29 03:30:46,740 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 57 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 03:30:46,740 INFO L413 NwaCegarLoop]: 64 mSDtfsCounter, 24 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 92 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 03:30:46,741 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 92 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 03:30:46,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 284 states. [2023-11-29 03:30:46,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 284 to 274. [2023-11-29 03:30:46,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 274 states, 222 states have (on average 1.3063063063063063) internal successors, (290), 239 states have internal predecessors, (290), 27 states have call successors, (27), 7 states have call predecessors, (27), 7 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2023-11-29 03:30:46,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 274 states and 344 transitions. [2023-11-29 03:30:46,759 INFO L78 Accepts]: Start accepts. Automaton has 274 states and 344 transitions. Word has length 59 [2023-11-29 03:30:46,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:30:46,759 INFO L495 AbstractCegarLoop]: Abstraction has 274 states and 344 transitions. [2023-11-29 03:30:46,759 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 13.0) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-29 03:30:46,759 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states and 344 transitions. [2023-11-29 03:30:46,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2023-11-29 03:30:46,760 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:30:46,760 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1] [2023-11-29 03:30:46,764 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d9e400-6823-4842-a47a-67e380efafb5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Ended with exit code 0 [2023-11-29 03:30:46,960 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d9e400-6823-4842-a47a-67e380efafb5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2023-11-29 03:30:46,961 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-29 03:30:46,961 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:30:46,961 INFO L85 PathProgramCache]: Analyzing trace with hash 1930038237, now seen corresponding path program 2 times [2023-11-29 03:30:46,961 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:30:46,961 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1169039791] [2023-11-29 03:30:46,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:30:46,961 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:30:46,968 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:30:46,968 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1928739631] [2023-11-29 03:30:46,968 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 03:30:46,968 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:30:46,968 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d9e400-6823-4842-a47a-67e380efafb5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:30:46,969 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d9e400-6823-4842-a47a-67e380efafb5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:30:46,970 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d9e400-6823-4842-a47a-67e380efafb5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2023-11-29 03:30:47,021 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 03:30:47,021 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 03:30:47,022 INFO L262 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-29 03:30:47,024 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:30:47,211 INFO L134 CoverageAnalysis]: Checked inductivity of 142 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2023-11-29 03:30:47,211 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:30:47,531 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:30:47,531 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1169039791] [2023-11-29 03:30:47,531 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:30:47,532 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1928739631] [2023-11-29 03:30:47,532 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1928739631] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 03:30:47,532 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 03:30:47,532 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2023-11-29 03:30:47,532 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1164649860] [2023-11-29 03:30:47,532 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 03:30:47,533 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 03:30:47,533 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:30:47,533 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 03:30:47,533 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2023-11-29 03:30:47,534 INFO L87 Difference]: Start difference. First operand 274 states and 344 transitions. Second operand has 7 states, 6 states have (on average 5.666666666666667) internal successors, (34), 7 states have internal predecessors, (34), 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 03:30:48,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:30:48,005 INFO L93 Difference]: Finished difference Result 377 states and 460 transitions. [2023-11-29 03:30:48,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 03:30:48,006 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 5.666666666666667) internal successors, (34), 7 states have internal predecessors, (34), 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 71 [2023-11-29 03:30:48,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:30:48,008 INFO L225 Difference]: With dead ends: 377 [2023-11-29 03:30:48,008 INFO L226 Difference]: Without dead ends: 373 [2023-11-29 03:30:48,009 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2023-11-29 03:30:48,009 INFO L413 NwaCegarLoop]: 56 mSDtfsCounter, 171 mSDsluCounter, 172 mSDsCounter, 0 mSdLazyCounter, 173 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 183 SdHoareTripleChecker+Valid, 228 SdHoareTripleChecker+Invalid, 183 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 173 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-29 03:30:48,010 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [183 Valid, 228 Invalid, 183 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 173 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-29 03:30:48,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 373 states. [2023-11-29 03:30:48,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 373 to 292. [2023-11-29 03:30:48,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 292 states, 238 states have (on average 1.2773109243697478) internal successors, (304), 255 states have internal predecessors, (304), 29 states have call successors, (29), 7 states have call predecessors, (29), 7 states have return successors, (29), 29 states have call predecessors, (29), 29 states have call successors, (29) [2023-11-29 03:30:48,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 292 states to 292 states and 362 transitions. [2023-11-29 03:30:48,029 INFO L78 Accepts]: Start accepts. Automaton has 292 states and 362 transitions. Word has length 71 [2023-11-29 03:30:48,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:30:48,030 INFO L495 AbstractCegarLoop]: Abstraction has 292 states and 362 transitions. [2023-11-29 03:30:48,030 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 5.666666666666667) internal successors, (34), 7 states have internal predecessors, (34), 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 03:30:48,030 INFO L276 IsEmpty]: Start isEmpty. Operand 292 states and 362 transitions. [2023-11-29 03:30:48,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2023-11-29 03:30:48,031 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:30:48,032 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 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] [2023-11-29 03:30:48,037 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d9e400-6823-4842-a47a-67e380efafb5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0 [2023-11-29 03:30:48,232 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d9e400-6823-4842-a47a-67e380efafb5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:30:48,232 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-29 03:30:48,232 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:30:48,233 INFO L85 PathProgramCache]: Analyzing trace with hash -816424672, now seen corresponding path program 1 times [2023-11-29 03:30:48,233 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:30:48,233 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [274548636] [2023-11-29 03:30:48,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:30:48,233 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:30:48,240 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:30:48,240 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1720641513] [2023-11-29 03:30:48,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:30:48,240 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:30:48,241 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d9e400-6823-4842-a47a-67e380efafb5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:30:48,241 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d9e400-6823-4842-a47a-67e380efafb5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:30:48,242 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d9e400-6823-4842-a47a-67e380efafb5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2023-11-29 03:30:48,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:30:48,292 INFO L262 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-29 03:30:48,294 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:30:48,554 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2023-11-29 03:30:48,554 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:30:49,026 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2023-11-29 03:30:49,027 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:30:49,027 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [274548636] [2023-11-29 03:30:49,027 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:30:49,027 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1720641513] [2023-11-29 03:30:49,027 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1720641513] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 03:30:49,028 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 03:30:49,028 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2023-11-29 03:30:49,028 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [584150857] [2023-11-29 03:30:49,028 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 03:30:49,029 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 03:30:49,029 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:30:49,030 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 03:30:49,030 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2023-11-29 03:30:49,031 INFO L87 Difference]: Start difference. First operand 292 states and 362 transitions. Second operand has 12 states, 11 states have (on average 7.181818181818182) internal successors, (79), 12 states have internal predecessors, (79), 6 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 6 states have call predecessors, (16), 6 states have call successors, (16) [2023-11-29 03:30:50,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:30:50,054 INFO L93 Difference]: Finished difference Result 434 states and 535 transitions. [2023-11-29 03:30:50,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-29 03:30:50,055 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 7.181818181818182) internal successors, (79), 12 states have internal predecessors, (79), 6 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 6 states have call predecessors, (16), 6 states have call successors, (16) Word has length 79 [2023-11-29 03:30:50,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:30:50,057 INFO L225 Difference]: With dead ends: 434 [2023-11-29 03:30:50,057 INFO L226 Difference]: Without dead ends: 432 [2023-11-29 03:30:50,058 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 146 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=131, Invalid=249, Unknown=0, NotChecked=0, Total=380 [2023-11-29 03:30:50,058 INFO L413 NwaCegarLoop]: 74 mSDtfsCounter, 273 mSDsluCounter, 274 mSDsCounter, 0 mSdLazyCounter, 225 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 277 SdHoareTripleChecker+Valid, 348 SdHoareTripleChecker+Invalid, 265 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 225 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-29 03:30:50,058 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [277 Valid, 348 Invalid, 265 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 225 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-29 03:30:50,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 432 states. [2023-11-29 03:30:50,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 432 to 286. [2023-11-29 03:30:50,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 286 states, 231 states have (on average 1.2597402597402598) internal successors, (291), 247 states have internal predecessors, (291), 31 states have call successors, (31), 7 states have call predecessors, (31), 7 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2023-11-29 03:30:50,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 286 states to 286 states and 353 transitions. [2023-11-29 03:30:50,089 INFO L78 Accepts]: Start accepts. Automaton has 286 states and 353 transitions. Word has length 79 [2023-11-29 03:30:50,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:30:50,089 INFO L495 AbstractCegarLoop]: Abstraction has 286 states and 353 transitions. [2023-11-29 03:30:50,090 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 7.181818181818182) internal successors, (79), 12 states have internal predecessors, (79), 6 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 6 states have call predecessors, (16), 6 states have call successors, (16) [2023-11-29 03:30:50,090 INFO L276 IsEmpty]: Start isEmpty. Operand 286 states and 353 transitions. [2023-11-29 03:30:50,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2023-11-29 03:30:50,090 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:30:50,090 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 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 03:30:50,096 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d9e400-6823-4842-a47a-67e380efafb5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Ended with exit code 0 [2023-11-29 03:30:50,291 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d9e400-6823-4842-a47a-67e380efafb5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:30:50,291 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-29 03:30:50,291 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:30:50,291 INFO L85 PathProgramCache]: Analyzing trace with hash 460639069, now seen corresponding path program 1 times [2023-11-29 03:30:50,292 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:30:50,292 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [506733364] [2023-11-29 03:30:50,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:30:50,292 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:30:50,298 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:30:50,298 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [316907662] [2023-11-29 03:30:50,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:30:50,298 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:30:50,299 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d9e400-6823-4842-a47a-67e380efafb5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:30:50,299 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d9e400-6823-4842-a47a-67e380efafb5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:30:50,300 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d9e400-6823-4842-a47a-67e380efafb5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2023-11-29 03:30:50,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:30:50,347 INFO L262 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 03:30:50,349 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:30:50,498 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 122 trivial. 0 not checked. [2023-11-29 03:30:50,499 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:30:50,499 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:30:50,499 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [506733364] [2023-11-29 03:30:50,499 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:30:50,499 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [316907662] [2023-11-29 03:30:50,499 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [316907662] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:30:50,499 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:30:50,499 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 03:30:50,499 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1392737575] [2023-11-29 03:30:50,500 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:30:50,500 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 03:30:50,500 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:30:50,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 03:30:50,501 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-11-29 03:30:50,501 INFO L87 Difference]: Start difference. First operand 286 states and 353 transitions. Second operand has 5 states, 4 states have (on average 9.25) internal successors, (37), 5 states have internal predecessors, (37), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-11-29 03:30:50,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:30:50,765 INFO L93 Difference]: Finished difference Result 303 states and 368 transitions. [2023-11-29 03:30:50,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 03:30:50,766 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 9.25) internal successors, (37), 5 states have internal predecessors, (37), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 80 [2023-11-29 03:30:50,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:30:50,768 INFO L225 Difference]: With dead ends: 303 [2023-11-29 03:30:50,768 INFO L226 Difference]: Without dead ends: 302 [2023-11-29 03:30:50,768 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-11-29 03:30:50,769 INFO L413 NwaCegarLoop]: 53 mSDtfsCounter, 59 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 126 SdHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 03:30:50,770 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 126 Invalid, 97 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 03:30:50,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 302 states. [2023-11-29 03:30:50,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 302 to 294. [2023-11-29 03:30:50,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 294 states, 239 states have (on average 1.2510460251046025) internal successors, (299), 255 states have internal predecessors, (299), 31 states have call successors, (31), 7 states have call predecessors, (31), 7 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2023-11-29 03:30:50,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 294 states and 361 transitions. [2023-11-29 03:30:50,807 INFO L78 Accepts]: Start accepts. Automaton has 294 states and 361 transitions. Word has length 80 [2023-11-29 03:30:50,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:30:50,807 INFO L495 AbstractCegarLoop]: Abstraction has 294 states and 361 transitions. [2023-11-29 03:30:50,807 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 9.25) internal successors, (37), 5 states have internal predecessors, (37), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-11-29 03:30:50,808 INFO L276 IsEmpty]: Start isEmpty. Operand 294 states and 361 transitions. [2023-11-29 03:30:50,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-11-29 03:30:50,808 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:30:50,809 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 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] [2023-11-29 03:30:50,815 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d9e400-6823-4842-a47a-67e380efafb5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Ended with exit code 0 [2023-11-29 03:30:51,009 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d9e400-6823-4842-a47a-67e380efafb5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2023-11-29 03:30:51,009 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-29 03:30:51,009 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:30:51,010 INFO L85 PathProgramCache]: Analyzing trace with hash 1394909378, now seen corresponding path program 1 times [2023-11-29 03:30:51,010 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:30:51,010 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1016457788] [2023-11-29 03:30:51,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:30:51,010 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:30:51,020 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:30:51,020 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2094341371] [2023-11-29 03:30:51,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:30:51,020 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:30:51,020 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d9e400-6823-4842-a47a-67e380efafb5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:30:51,022 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d9e400-6823-4842-a47a-67e380efafb5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:30:51,032 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d9e400-6823-4842-a47a-67e380efafb5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2023-11-29 03:30:51,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:30:51,089 INFO L262 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 03:30:51,091 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:30:51,213 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 122 trivial. 0 not checked. [2023-11-29 03:30:51,213 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:30:51,213 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:30:51,213 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1016457788] [2023-11-29 03:30:51,213 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:30:51,213 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2094341371] [2023-11-29 03:30:51,214 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2094341371] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:30:51,214 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:30:51,214 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 03:30:51,214 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1190172518] [2023-11-29 03:30:51,214 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:30:51,214 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 03:30:51,214 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:30:51,215 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 03:30:51,215 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 03:30:51,215 INFO L87 Difference]: Start difference. First operand 294 states and 361 transitions. Second operand has 4 states, 3 states have (on average 12.666666666666666) internal successors, (38), 4 states have internal predecessors, (38), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-11-29 03:30:51,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:30:51,391 INFO L93 Difference]: Finished difference Result 302 states and 365 transitions. [2023-11-29 03:30:51,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 03:30:51,393 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 12.666666666666666) internal successors, (38), 4 states have internal predecessors, (38), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 81 [2023-11-29 03:30:51,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:30:51,394 INFO L225 Difference]: With dead ends: 302 [2023-11-29 03:30:51,394 INFO L226 Difference]: Without dead ends: 300 [2023-11-29 03:30:51,395 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 78 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 03:30:51,395 INFO L413 NwaCegarLoop]: 55 mSDtfsCounter, 41 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 87 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 03:30:51,396 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 87 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 03:30:51,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 300 states. [2023-11-29 03:30:51,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 300 to 296. [2023-11-29 03:30:51,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 296 states, 241 states have (on average 1.2365145228215768) internal successors, (298), 257 states have internal predecessors, (298), 31 states have call successors, (31), 7 states have call predecessors, (31), 7 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2023-11-29 03:30:51,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 296 states to 296 states and 360 transitions. [2023-11-29 03:30:51,422 INFO L78 Accepts]: Start accepts. Automaton has 296 states and 360 transitions. Word has length 81 [2023-11-29 03:30:51,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:30:51,422 INFO L495 AbstractCegarLoop]: Abstraction has 296 states and 360 transitions. [2023-11-29 03:30:51,422 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 12.666666666666666) internal successors, (38), 4 states have internal predecessors, (38), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-11-29 03:30:51,422 INFO L276 IsEmpty]: Start isEmpty. Operand 296 states and 360 transitions. [2023-11-29 03:30:51,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2023-11-29 03:30:51,423 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:30:51,423 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 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] [2023-11-29 03:30:51,427 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d9e400-6823-4842-a47a-67e380efafb5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Ended with exit code 0 [2023-11-29 03:30:51,623 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d9e400-6823-4842-a47a-67e380efafb5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2023-11-29 03:30:51,624 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-29 03:30:51,624 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:30:51,624 INFO L85 PathProgramCache]: Analyzing trace with hash 1515810226, now seen corresponding path program 1 times [2023-11-29 03:30:51,624 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:30:51,624 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1263239035] [2023-11-29 03:30:51,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:30:51,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:30:51,632 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:30:51,632 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1625870006] [2023-11-29 03:30:51,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:30:51,632 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:30:51,632 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d9e400-6823-4842-a47a-67e380efafb5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:30:51,633 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d9e400-6823-4842-a47a-67e380efafb5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:30:51,634 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d9e400-6823-4842-a47a-67e380efafb5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2023-11-29 03:30:51,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:30:51,687 INFO L262 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-29 03:30:51,689 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:30:52,050 INFO L134 CoverageAnalysis]: Checked inductivity of 127 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2023-11-29 03:30:52,050 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:30:52,818 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:30:52,818 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1263239035] [2023-11-29 03:30:52,818 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:30:52,819 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1625870006] [2023-11-29 03:30:52,819 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1625870006] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 03:30:52,819 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 03:30:52,819 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2023-11-29 03:30:52,819 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1625137766] [2023-11-29 03:30:52,819 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 03:30:52,820 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 03:30:52,820 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:30:52,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 03:30:52,820 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2023-11-29 03:30:52,820 INFO L87 Difference]: Start difference. First operand 296 states and 360 transitions. Second operand has 9 states, 8 states have (on average 6.125) internal successors, (49), 9 states have internal predecessors, (49), 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 03:30:53,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:30:53,373 INFO L93 Difference]: Finished difference Result 354 states and 422 transitions. [2023-11-29 03:30:53,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-29 03:30:53,374 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 6.125) internal successors, (49), 9 states have internal predecessors, (49), 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 86 [2023-11-29 03:30:53,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:30:53,376 INFO L225 Difference]: With dead ends: 354 [2023-11-29 03:30:53,376 INFO L226 Difference]: Without dead ends: 353 [2023-11-29 03:30:53,376 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=57, Invalid=125, Unknown=0, NotChecked=0, Total=182 [2023-11-29 03:30:53,377 INFO L413 NwaCegarLoop]: 60 mSDtfsCounter, 92 mSDsluCounter, 184 mSDsCounter, 0 mSdLazyCounter, 398 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 244 SdHoareTripleChecker+Invalid, 407 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 398 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-29 03:30:53,377 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 244 Invalid, 407 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 398 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-29 03:30:53,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 353 states. [2023-11-29 03:30:53,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 353 to 296. [2023-11-29 03:30:53,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 296 states, 241 states have (on average 1.2323651452282158) internal successors, (297), 257 states have internal predecessors, (297), 31 states have call successors, (31), 7 states have call predecessors, (31), 7 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2023-11-29 03:30:53,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 296 states to 296 states and 359 transitions. [2023-11-29 03:30:53,402 INFO L78 Accepts]: Start accepts. Automaton has 296 states and 359 transitions. Word has length 86 [2023-11-29 03:30:53,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:30:53,402 INFO L495 AbstractCegarLoop]: Abstraction has 296 states and 359 transitions. [2023-11-29 03:30:53,402 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 6.125) internal successors, (49), 9 states have internal predecessors, (49), 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 03:30:53,402 INFO L276 IsEmpty]: Start isEmpty. Operand 296 states and 359 transitions. [2023-11-29 03:30:53,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2023-11-29 03:30:53,403 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:30:53,403 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 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] [2023-11-29 03:30:53,408 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d9e400-6823-4842-a47a-67e380efafb5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Ended with exit code 0 [2023-11-29 03:30:53,604 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d9e400-6823-4842-a47a-67e380efafb5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2023-11-29 03:30:53,604 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-29 03:30:53,604 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:30:53,604 INFO L85 PathProgramCache]: Analyzing trace with hash -254523157, now seen corresponding path program 1 times [2023-11-29 03:30:53,605 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:30:53,605 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [269820555] [2023-11-29 03:30:53,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:30:53,605 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:30:53,612 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:30:53,613 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [868969056] [2023-11-29 03:30:53,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:30:53,613 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:30:53,613 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d9e400-6823-4842-a47a-67e380efafb5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:30:53,614 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d9e400-6823-4842-a47a-67e380efafb5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:30:53,617 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d9e400-6823-4842-a47a-67e380efafb5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2023-11-29 03:30:53,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:30:53,673 INFO L262 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-29 03:30:53,675 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:30:54,073 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2023-11-29 03:30:54,073 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:30:54,827 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:30:54,827 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [269820555] [2023-11-29 03:30:54,827 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:30:54,827 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [868969056] [2023-11-29 03:30:54,827 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [868969056] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 03:30:54,828 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 03:30:54,828 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2023-11-29 03:30:54,828 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [648188777] [2023-11-29 03:30:54,828 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 03:30:54,828 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 03:30:54,828 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:30:54,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 03:30:54,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2023-11-29 03:30:54,829 INFO L87 Difference]: Start difference. First operand 296 states and 359 transitions. Second operand has 9 states, 8 states have (on average 6.25) internal successors, (50), 9 states have internal predecessors, (50), 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 03:30:55,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:30:55,245 INFO L93 Difference]: Finished difference Result 332 states and 398 transitions. [2023-11-29 03:30:55,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-29 03:30:55,246 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 6.25) internal successors, (50), 9 states have internal predecessors, (50), 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 87 [2023-11-29 03:30:55,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:30:55,254 INFO L225 Difference]: With dead ends: 332 [2023-11-29 03:30:55,254 INFO L226 Difference]: Without dead ends: 331 [2023-11-29 03:30:55,254 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 93 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=51, Invalid=105, Unknown=0, NotChecked=0, Total=156 [2023-11-29 03:30:55,255 INFO L413 NwaCegarLoop]: 49 mSDtfsCounter, 44 mSDsluCounter, 166 mSDsCounter, 0 mSdLazyCounter, 357 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 215 SdHoareTripleChecker+Invalid, 360 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 357 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-29 03:30:55,255 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 215 Invalid, 360 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 357 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-29 03:30:55,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 331 states. [2023-11-29 03:30:55,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 331 to 294. [2023-11-29 03:30:55,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 294 states, 239 states have (on average 1.2301255230125523) internal successors, (294), 255 states have internal predecessors, (294), 31 states have call successors, (31), 7 states have call predecessors, (31), 7 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2023-11-29 03:30:55,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 294 states and 356 transitions. [2023-11-29 03:30:55,288 INFO L78 Accepts]: Start accepts. Automaton has 294 states and 356 transitions. Word has length 87 [2023-11-29 03:30:55,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:30:55,288 INFO L495 AbstractCegarLoop]: Abstraction has 294 states and 356 transitions. [2023-11-29 03:30:55,288 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 6.25) internal successors, (50), 9 states have internal predecessors, (50), 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 03:30:55,288 INFO L276 IsEmpty]: Start isEmpty. Operand 294 states and 356 transitions. [2023-11-29 03:30:55,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2023-11-29 03:30:55,289 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:30:55,289 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 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] [2023-11-29 03:30:55,295 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d9e400-6823-4842-a47a-67e380efafb5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Forceful destruction successful, exit code 0 [2023-11-29 03:30:55,490 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27,27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d9e400-6823-4842-a47a-67e380efafb5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:30:55,490 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-29 03:30:55,490 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:30:55,490 INFO L85 PathProgramCache]: Analyzing trace with hash 699716820, now seen corresponding path program 1 times [2023-11-29 03:30:55,490 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:30:55,490 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1922327358] [2023-11-29 03:30:55,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:30:55,491 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:30:55,497 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:30:55,497 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2048930296] [2023-11-29 03:30:55,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:30:55,497 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:30:55,497 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d9e400-6823-4842-a47a-67e380efafb5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:30:55,498 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d9e400-6823-4842-a47a-67e380efafb5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:30:55,499 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d9e400-6823-4842-a47a-67e380efafb5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2023-11-29 03:30:55,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:30:55,555 INFO L262 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 03:30:55,556 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:30:55,584 INFO L134 CoverageAnalysis]: Checked inductivity of 129 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 122 trivial. 0 not checked. [2023-11-29 03:30:55,585 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:30:55,585 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:30:55,585 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1922327358] [2023-11-29 03:30:55,585 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:30:55,585 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2048930296] [2023-11-29 03:30:55,585 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2048930296] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:30:55,585 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:30:55,585 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 03:30:55,585 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [123613234] [2023-11-29 03:30:55,586 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:30:55,586 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 03:30:55,586 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:30:55,586 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 03:30:55,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-29 03:30:55,587 INFO L87 Difference]: Start difference. First operand 294 states and 356 transitions. Second operand has 5 states, 4 states have (on average 11.25) internal successors, (45), 5 states have internal predecessors, (45), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-11-29 03:30:55,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:30:55,800 INFO L93 Difference]: Finished difference Result 304 states and 364 transitions. [2023-11-29 03:30:55,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 03:30:55,800 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 11.25) internal successors, (45), 5 states have internal predecessors, (45), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 88 [2023-11-29 03:30:55,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:30:55,802 INFO L225 Difference]: With dead ends: 304 [2023-11-29 03:30:55,803 INFO L226 Difference]: Without dead ends: 303 [2023-11-29 03:30:55,803 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-11-29 03:30:55,803 INFO L413 NwaCegarLoop]: 37 mSDtfsCounter, 108 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 81 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 03:30:55,804 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [113 Valid, 81 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 03:30:55,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 303 states. [2023-11-29 03:30:55,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 303 to 293. [2023-11-29 03:30:55,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 293 states, 239 states have (on average 1.209205020920502) internal successors, (289), 254 states have internal predecessors, (289), 31 states have call successors, (31), 7 states have call predecessors, (31), 7 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2023-11-29 03:30:55,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 293 states to 293 states and 351 transitions. [2023-11-29 03:30:55,838 INFO L78 Accepts]: Start accepts. Automaton has 293 states and 351 transitions. Word has length 88 [2023-11-29 03:30:55,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:30:55,838 INFO L495 AbstractCegarLoop]: Abstraction has 293 states and 351 transitions. [2023-11-29 03:30:55,838 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 11.25) internal successors, (45), 5 states have internal predecessors, (45), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-11-29 03:30:55,838 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states and 351 transitions. [2023-11-29 03:30:55,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2023-11-29 03:30:55,839 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:30:55,839 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 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 03:30:55,844 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d9e400-6823-4842-a47a-67e380efafb5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Ended with exit code 0 [2023-11-29 03:30:56,040 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d9e400-6823-4842-a47a-67e380efafb5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2023-11-29 03:30:56,040 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-29 03:30:56,040 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:30:56,040 INFO L85 PathProgramCache]: Analyzing trace with hash 216385037, now seen corresponding path program 1 times [2023-11-29 03:30:56,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:30:56,041 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1141571277] [2023-11-29 03:30:56,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:30:56,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:30:56,048 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:30:56,048 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [260551719] [2023-11-29 03:30:56,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:30:56,049 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:30:56,049 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d9e400-6823-4842-a47a-67e380efafb5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:30:56,050 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d9e400-6823-4842-a47a-67e380efafb5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:30:56,051 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d9e400-6823-4842-a47a-67e380efafb5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2023-11-29 03:30:56,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:30:56,103 INFO L262 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 22 conjunts are in the unsatisfiable core [2023-11-29 03:30:56,106 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:30:56,816 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2023-11-29 03:30:56,816 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:31:11,582 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2023-11-29 03:31:11,582 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:31:11,582 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1141571277] [2023-11-29 03:31:11,582 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:31:11,583 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [260551719] [2023-11-29 03:31:11,583 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [260551719] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 03:31:11,583 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 03:31:11,583 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 19 [2023-11-29 03:31:11,583 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [181222257] [2023-11-29 03:31:11,583 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 03:31:11,583 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-11-29 03:31:11,583 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:31:11,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-11-29 03:31:11,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=116, Invalid=264, Unknown=0, NotChecked=0, Total=380 [2023-11-29 03:31:11,584 INFO L87 Difference]: Start difference. First operand 293 states and 351 transitions. Second operand has 20 states, 19 states have (on average 5.2105263157894735) internal successors, (99), 20 states have internal predecessors, (99), 6 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 6 states have call predecessors, (16), 6 states have call successors, (16) [2023-11-29 03:31:26,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:31:26,858 INFO L93 Difference]: Finished difference Result 356 states and 416 transitions. [2023-11-29 03:31:26,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2023-11-29 03:31:26,859 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 19 states have (on average 5.2105263157894735) internal successors, (99), 20 states have internal predecessors, (99), 6 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 6 states have call predecessors, (16), 6 states have call successors, (16) Word has length 89 [2023-11-29 03:31:26,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:31:26,862 INFO L225 Difference]: With dead ends: 356 [2023-11-29 03:31:26,862 INFO L226 Difference]: Without dead ends: 355 [2023-11-29 03:31:26,863 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 190 GetRequests, 158 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 257 ImplicationChecksByTransitivity, 8.8s TimeCoverageRelationStatistics Valid=355, Invalid=767, Unknown=0, NotChecked=0, Total=1122 [2023-11-29 03:31:26,863 INFO L413 NwaCegarLoop]: 47 mSDtfsCounter, 365 mSDsluCounter, 283 mSDsCounter, 0 mSdLazyCounter, 802 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 370 SdHoareTripleChecker+Valid, 330 SdHoareTripleChecker+Invalid, 874 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 802 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.3s IncrementalHoareTripleChecker+Time [2023-11-29 03:31:26,863 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [370 Valid, 330 Invalid, 874 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 802 Invalid, 0 Unknown, 0 Unchecked, 8.3s Time] [2023-11-29 03:31:26,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 355 states. [2023-11-29 03:31:26,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 355 to 323. [2023-11-29 03:31:26,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 323 states, 267 states have (on average 1.2172284644194757) internal successors, (325), 282 states have internal predecessors, (325), 33 states have call successors, (33), 7 states have call predecessors, (33), 7 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) [2023-11-29 03:31:26,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 323 states to 323 states and 391 transitions. [2023-11-29 03:31:26,909 INFO L78 Accepts]: Start accepts. Automaton has 323 states and 391 transitions. Word has length 89 [2023-11-29 03:31:26,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:31:26,909 INFO L495 AbstractCegarLoop]: Abstraction has 323 states and 391 transitions. [2023-11-29 03:31:26,910 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 5.2105263157894735) internal successors, (99), 20 states have internal predecessors, (99), 6 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 6 states have call predecessors, (16), 6 states have call successors, (16) [2023-11-29 03:31:26,910 INFO L276 IsEmpty]: Start isEmpty. Operand 323 states and 391 transitions. [2023-11-29 03:31:26,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-11-29 03:31:26,911 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:31:26,911 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1] [2023-11-29 03:31:26,916 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d9e400-6823-4842-a47a-67e380efafb5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Ended with exit code 0 [2023-11-29 03:31:27,111 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d9e400-6823-4842-a47a-67e380efafb5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:31:27,111 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-29 03:31:27,111 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:31:27,112 INFO L85 PathProgramCache]: Analyzing trace with hash 1277550524, now seen corresponding path program 3 times [2023-11-29 03:31:27,112 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:31:27,112 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1415528948] [2023-11-29 03:31:27,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:31:27,112 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:31:27,118 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:31:27,118 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1128104620] [2023-11-29 03:31:27,118 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-29 03:31:27,118 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:31:27,118 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d9e400-6823-4842-a47a-67e380efafb5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:31:27,119 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d9e400-6823-4842-a47a-67e380efafb5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:31:27,121 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d9e400-6823-4842-a47a-67e380efafb5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2023-11-29 03:31:27,178 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2023-11-29 03:31:27,178 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 03:31:27,179 INFO L262 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-29 03:31:27,181 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:31:28,140 INFO L134 CoverageAnalysis]: Checked inductivity of 286 backedges. 44 proven. 38 refuted. 0 times theorem prover too weak. 204 trivial. 0 not checked. [2023-11-29 03:31:28,140 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:31:30,005 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:31:30,005 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1415528948] [2023-11-29 03:31:30,005 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:31:30,005 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1128104620] [2023-11-29 03:31:30,005 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1128104620] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 03:31:30,006 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 03:31:30,006 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2023-11-29 03:31:30,006 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [573777938] [2023-11-29 03:31:30,006 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 03:31:30,006 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-29 03:31:30,006 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:31:30,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-29 03:31:30,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=213, Unknown=0, NotChecked=0, Total=272 [2023-11-29 03:31:30,007 INFO L87 Difference]: Start difference. First operand 323 states and 391 transitions. Second operand has 11 states, 10 states have (on average 3.8) internal successors, (38), 10 states have internal predecessors, (38), 3 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 3 states have call successors, (8) [2023-11-29 03:31:35,741 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 [] [2023-11-29 03:31:39,744 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 03:31:43,746 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 03:31:47,748 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 03:31:51,751 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 03:31:55,754 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 03:32:01,062 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 03:32:05,065 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 03:32:09,067 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 03:32:13,070 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 03:32:17,072 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 03:32:17,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:32:17,869 INFO L93 Difference]: Finished difference Result 385 states and 460 transitions. [2023-11-29 03:32:17,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-11-29 03:32:17,869 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 3.8) internal successors, (38), 10 states have internal predecessors, (38), 3 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 3 states have call successors, (8) Word has length 97 [2023-11-29 03:32:17,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:32:17,871 INFO L225 Difference]: With dead ends: 385 [2023-11-29 03:32:17,871 INFO L226 Difference]: Without dead ends: 372 [2023-11-29 03:32:17,871 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=148, Invalid=452, Unknown=0, NotChecked=0, Total=600 [2023-11-29 03:32:17,872 INFO L413 NwaCegarLoop]: 76 mSDtfsCounter, 150 mSDsluCounter, 432 mSDsCounter, 0 mSdLazyCounter, 705 mSolverCounterSat, 16 mSolverCounterUnsat, 11 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 46.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 156 SdHoareTripleChecker+Valid, 508 SdHoareTripleChecker+Invalid, 732 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 705 IncrementalHoareTripleChecker+Invalid, 11 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 46.7s IncrementalHoareTripleChecker+Time [2023-11-29 03:32:17,872 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [156 Valid, 508 Invalid, 732 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 705 Invalid, 11 Unknown, 0 Unchecked, 46.7s Time] [2023-11-29 03:32:17,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 372 states. [2023-11-29 03:32:17,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 372 to 338. [2023-11-29 03:32:17,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 338 states, 285 states have (on average 1.2105263157894737) internal successors, (345), 297 states have internal predecessors, (345), 34 states have call successors, (34), 6 states have call predecessors, (34), 6 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2023-11-29 03:32:17,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 338 states to 338 states and 413 transitions. [2023-11-29 03:32:17,905 INFO L78 Accepts]: Start accepts. Automaton has 338 states and 413 transitions. Word has length 97 [2023-11-29 03:32:17,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:32:17,906 INFO L495 AbstractCegarLoop]: Abstraction has 338 states and 413 transitions. [2023-11-29 03:32:17,906 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 3.8) internal successors, (38), 10 states have internal predecessors, (38), 3 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 3 states have call successors, (8) [2023-11-29 03:32:17,906 INFO L276 IsEmpty]: Start isEmpty. Operand 338 states and 413 transitions. [2023-11-29 03:32:17,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2023-11-29 03:32:17,907 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:32:17,907 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 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] [2023-11-29 03:32:17,911 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d9e400-6823-4842-a47a-67e380efafb5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Ended with exit code 0 [2023-11-29 03:32:18,107 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d9e400-6823-4842-a47a-67e380efafb5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable30 [2023-11-29 03:32:18,107 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-29 03:32:18,108 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:32:18,108 INFO L85 PathProgramCache]: Analyzing trace with hash 1324678156, now seen corresponding path program 1 times [2023-11-29 03:32:18,108 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:32:18,108 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1888573422] [2023-11-29 03:32:18,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:32:18,108 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:32:18,114 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:32:18,114 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [17190681] [2023-11-29 03:32:18,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:32:18,115 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:32:18,115 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d9e400-6823-4842-a47a-67e380efafb5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:32:18,115 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d9e400-6823-4842-a47a-67e380efafb5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:32:18,116 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d9e400-6823-4842-a47a-67e380efafb5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2023-11-29 03:32:18,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:32:18,175 INFO L262 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-29 03:32:18,177 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:32:18,470 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 10 proven. 13 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2023-11-29 03:32:18,470 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:32:19,709 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:32:19,709 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1888573422] [2023-11-29 03:32:19,710 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:32:19,710 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [17190681] [2023-11-29 03:32:19,710 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [17190681] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 03:32:19,710 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 03:32:19,710 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2023-11-29 03:32:19,710 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1137213794] [2023-11-29 03:32:19,710 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 03:32:19,710 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 03:32:19,711 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:32:19,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 03:32:19,711 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156 [2023-11-29 03:32:19,711 INFO L87 Difference]: Start difference. First operand 338 states and 413 transitions. Second operand has 9 states, 8 states have (on average 7.0) internal successors, (56), 9 states have internal predecessors, (56), 4 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2023-11-29 03:32:20,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:32:20,287 INFO L93 Difference]: Finished difference Result 389 states and 467 transitions. [2023-11-29 03:32:20,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-29 03:32:20,288 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 7.0) internal successors, (56), 9 states have internal predecessors, (56), 4 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) Word has length 103 [2023-11-29 03:32:20,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:32:20,289 INFO L225 Difference]: With dead ends: 389 [2023-11-29 03:32:20,289 INFO L226 Difference]: Without dead ends: 388 [2023-11-29 03:32:20,290 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=78, Invalid=194, Unknown=0, NotChecked=0, Total=272 [2023-11-29 03:32:20,290 INFO L413 NwaCegarLoop]: 69 mSDtfsCounter, 73 mSDsluCounter, 241 mSDsCounter, 0 mSdLazyCounter, 350 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 310 SdHoareTripleChecker+Invalid, 357 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 350 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-29 03:32:20,290 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 310 Invalid, 357 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 350 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-29 03:32:20,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 388 states. [2023-11-29 03:32:20,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 388 to 348. [2023-11-29 03:32:20,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 348 states, 293 states have (on average 1.2081911262798635) internal successors, (354), 305 states have internal predecessors, (354), 36 states have call successors, (36), 6 states have call predecessors, (36), 6 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2023-11-29 03:32:20,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 348 states to 348 states and 426 transitions. [2023-11-29 03:32:20,326 INFO L78 Accepts]: Start accepts. Automaton has 348 states and 426 transitions. Word has length 103 [2023-11-29 03:32:20,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:32:20,326 INFO L495 AbstractCegarLoop]: Abstraction has 348 states and 426 transitions. [2023-11-29 03:32:20,326 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 7.0) internal successors, (56), 9 states have internal predecessors, (56), 4 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2023-11-29 03:32:20,326 INFO L276 IsEmpty]: Start isEmpty. Operand 348 states and 426 transitions. [2023-11-29 03:32:20,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-11-29 03:32:20,327 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:32:20,327 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:32:20,332 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d9e400-6823-4842-a47a-67e380efafb5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Ended with exit code 0 [2023-11-29 03:32:20,527 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d9e400-6823-4842-a47a-67e380efafb5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:32:20,528 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-29 03:32:20,528 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:32:20,528 INFO L85 PathProgramCache]: Analyzing trace with hash -1884649987, now seen corresponding path program 1 times [2023-11-29 03:32:20,528 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:32:20,528 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2062555669] [2023-11-29 03:32:20,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:32:20,528 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:32:20,535 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:32:20,535 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1442208830] [2023-11-29 03:32:20,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:32:20,535 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:32:20,536 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d9e400-6823-4842-a47a-67e380efafb5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:32:20,536 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d9e400-6823-4842-a47a-67e380efafb5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:32:20,537 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d9e400-6823-4842-a47a-67e380efafb5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2023-11-29 03:32:20,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:32:20,599 INFO L262 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-29 03:32:20,601 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:32:20,818 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2023-11-29 03:32:20,818 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:32:21,787 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:32:21,788 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2062555669] [2023-11-29 03:32:21,788 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:32:21,788 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1442208830] [2023-11-29 03:32:21,788 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1442208830] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 03:32:21,788 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 03:32:21,788 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2023-11-29 03:32:21,788 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [81795245] [2023-11-29 03:32:21,788 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 03:32:21,789 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 03:32:21,789 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:32:21,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 03:32:21,789 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2023-11-29 03:32:21,789 INFO L87 Difference]: Start difference. First operand 348 states and 426 transitions. Second operand has 8 states, 7 states have (on average 8.142857142857142) internal successors, (57), 8 states have internal predecessors, (57), 4 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2023-11-29 03:32:22,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:32:22,058 INFO L93 Difference]: Finished difference Result 358 states and 435 transitions. [2023-11-29 03:32:22,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 03:32:22,058 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 8.142857142857142) internal successors, (57), 8 states have internal predecessors, (57), 4 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) Word has length 104 [2023-11-29 03:32:22,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:32:22,060 INFO L225 Difference]: With dead ends: 358 [2023-11-29 03:32:22,060 INFO L226 Difference]: Without dead ends: 357 [2023-11-29 03:32:22,060 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=69, Invalid=141, Unknown=0, NotChecked=0, Total=210 [2023-11-29 03:32:22,061 INFO L413 NwaCegarLoop]: 66 mSDtfsCounter, 36 mSDsluCounter, 228 mSDsCounter, 0 mSdLazyCounter, 341 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 294 SdHoareTripleChecker+Invalid, 346 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 341 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 03:32:22,061 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 294 Invalid, 346 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 341 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 03:32:22,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 357 states. [2023-11-29 03:32:22,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 357 to 349. [2023-11-29 03:32:22,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 349 states, 294 states have (on average 1.2074829931972788) internal successors, (355), 306 states have internal predecessors, (355), 36 states have call successors, (36), 6 states have call predecessors, (36), 6 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2023-11-29 03:32:22,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 349 states to 349 states and 427 transitions. [2023-11-29 03:32:22,122 INFO L78 Accepts]: Start accepts. Automaton has 349 states and 427 transitions. Word has length 104 [2023-11-29 03:32:22,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:32:22,122 INFO L495 AbstractCegarLoop]: Abstraction has 349 states and 427 transitions. [2023-11-29 03:32:22,122 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 8.142857142857142) internal successors, (57), 8 states have internal predecessors, (57), 4 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2023-11-29 03:32:22,122 INFO L276 IsEmpty]: Start isEmpty. Operand 349 states and 427 transitions. [2023-11-29 03:32:22,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2023-11-29 03:32:22,123 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:32:22,124 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 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] [2023-11-29 03:32:22,128 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d9e400-6823-4842-a47a-67e380efafb5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Ended with exit code 0 [2023-11-29 03:32:22,324 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32,32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d9e400-6823-4842-a47a-67e380efafb5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:32:22,324 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-29 03:32:22,324 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:32:22,325 INFO L85 PathProgramCache]: Analyzing trace with hash 1705392686, now seen corresponding path program 1 times [2023-11-29 03:32:22,325 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:32:22,325 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [128074035] [2023-11-29 03:32:22,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:32:22,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:32:22,332 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:32:22,333 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [796563138] [2023-11-29 03:32:22,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:32:22,333 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:32:22,333 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d9e400-6823-4842-a47a-67e380efafb5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:32:22,334 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d9e400-6823-4842-a47a-67e380efafb5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:32:22,335 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d9e400-6823-4842-a47a-67e380efafb5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process [2023-11-29 03:32:22,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:32:22,397 INFO L262 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 03:32:22,399 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:32:22,435 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2023-11-29 03:32:22,435 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:32:22,436 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:32:22,436 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [128074035] [2023-11-29 03:32:22,436 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:32:22,436 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [796563138] [2023-11-29 03:32:22,436 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [796563138] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:32:22,436 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:32:22,436 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 03:32:22,436 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [901089711] [2023-11-29 03:32:22,436 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:32:22,437 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 03:32:22,437 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:32:22,437 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 03:32:22,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-29 03:32:22,438 INFO L87 Difference]: Start difference. First operand 349 states and 427 transitions. Second operand has 5 states, 4 states have (on average 13.0) internal successors, (52), 5 states have internal predecessors, (52), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-11-29 03:32:22,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:32:22,779 INFO L93 Difference]: Finished difference Result 349 states and 427 transitions. [2023-11-29 03:32:22,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 03:32:22,779 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 13.0) internal successors, (52), 5 states have internal predecessors, (52), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 105 [2023-11-29 03:32:22,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:32:22,782 INFO L225 Difference]: With dead ends: 349 [2023-11-29 03:32:22,782 INFO L226 Difference]: Without dead ends: 348 [2023-11-29 03:32:22,782 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-11-29 03:32:22,782 INFO L413 NwaCegarLoop]: 50 mSDtfsCounter, 58 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 122 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 03:32:22,783 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 122 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 03:32:22,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 348 states. [2023-11-29 03:32:22,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 348 to 348. [2023-11-29 03:32:22,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 348 states, 294 states have (on average 1.2040816326530612) internal successors, (354), 305 states have internal predecessors, (354), 36 states have call successors, (36), 6 states have call predecessors, (36), 6 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2023-11-29 03:32:22,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 348 states to 348 states and 426 transitions. [2023-11-29 03:32:22,828 INFO L78 Accepts]: Start accepts. Automaton has 348 states and 426 transitions. Word has length 105 [2023-11-29 03:32:22,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:32:22,828 INFO L495 AbstractCegarLoop]: Abstraction has 348 states and 426 transitions. [2023-11-29 03:32:22,828 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 13.0) internal successors, (52), 5 states have internal predecessors, (52), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-11-29 03:32:22,829 INFO L276 IsEmpty]: Start isEmpty. Operand 348 states and 426 transitions. [2023-11-29 03:32:22,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2023-11-29 03:32:22,829 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:32:22,830 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 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] [2023-11-29 03:32:22,834 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d9e400-6823-4842-a47a-67e380efafb5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Ended with exit code 0 [2023-11-29 03:32:23,030 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33,33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d9e400-6823-4842-a47a-67e380efafb5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:32:23,030 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-29 03:32:23,030 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:32:23,031 INFO L85 PathProgramCache]: Analyzing trace with hash 1327565855, now seen corresponding path program 1 times [2023-11-29 03:32:23,031 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:32:23,031 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [846085958] [2023-11-29 03:32:23,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:32:23,031 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:32:23,038 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:32:23,038 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [99519558] [2023-11-29 03:32:23,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:32:23,039 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:32:23,039 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d9e400-6823-4842-a47a-67e380efafb5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:32:23,040 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d9e400-6823-4842-a47a-67e380efafb5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:32:23,040 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d9e400-6823-4842-a47a-67e380efafb5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Waiting until timeout for monitored process [2023-11-29 03:32:23,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:32:23,101 INFO L262 TraceCheckSpWp]: Trace formula consists of 204 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-29 03:32:23,104 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:32:23,283 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2023-11-29 03:32:23,283 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:32:23,410 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:32:23,411 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [846085958] [2023-11-29 03:32:23,411 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:32:23,411 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [99519558] [2023-11-29 03:32:23,411 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [99519558] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 03:32:23,411 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 03:32:23,411 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2023-11-29 03:32:23,411 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [529727390] [2023-11-29 03:32:23,411 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 03:32:23,412 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 03:32:23,412 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:32:23,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 03:32:23,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2023-11-29 03:32:23,413 INFO L87 Difference]: Start difference. First operand 348 states and 426 transitions. Second operand has 8 states, 7 states have (on average 8.428571428571429) internal successors, (59), 8 states have internal predecessors, (59), 4 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2023-11-29 03:32:23,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:32:23,862 INFO L93 Difference]: Finished difference Result 368 states and 438 transitions. [2023-11-29 03:32:23,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-29 03:32:23,862 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 8.428571428571429) internal successors, (59), 8 states have internal predecessors, (59), 4 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) Word has length 106 [2023-11-29 03:32:23,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:32:23,865 INFO L225 Difference]: With dead ends: 368 [2023-11-29 03:32:23,865 INFO L226 Difference]: Without dead ends: 363 [2023-11-29 03:32:23,865 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=82, Invalid=224, Unknown=0, NotChecked=0, Total=306 [2023-11-29 03:32:23,866 INFO L413 NwaCegarLoop]: 58 mSDtfsCounter, 81 mSDsluCounter, 184 mSDsCounter, 0 mSdLazyCounter, 299 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 242 SdHoareTripleChecker+Invalid, 314 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 299 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-29 03:32:23,866 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 242 Invalid, 314 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 299 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-29 03:32:23,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 363 states. [2023-11-29 03:32:23,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 363 to 346. [2023-11-29 03:32:23,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 346 states, 292 states have (on average 1.202054794520548) internal successors, (351), 303 states have internal predecessors, (351), 36 states have call successors, (36), 6 states have call predecessors, (36), 6 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2023-11-29 03:32:23,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 346 states to 346 states and 423 transitions. [2023-11-29 03:32:23,926 INFO L78 Accepts]: Start accepts. Automaton has 346 states and 423 transitions. Word has length 106 [2023-11-29 03:32:23,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:32:23,927 INFO L495 AbstractCegarLoop]: Abstraction has 346 states and 423 transitions. [2023-11-29 03:32:23,927 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 8.428571428571429) internal successors, (59), 8 states have internal predecessors, (59), 4 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2023-11-29 03:32:23,927 INFO L276 IsEmpty]: Start isEmpty. Operand 346 states and 423 transitions. [2023-11-29 03:32:23,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2023-11-29 03:32:23,928 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:32:23,928 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:32:23,932 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d9e400-6823-4842-a47a-67e380efafb5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Ended with exit code 0 [2023-11-29 03:32:24,128 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d9e400-6823-4842-a47a-67e380efafb5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34 [2023-11-29 03:32:24,129 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-29 03:32:24,129 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:32:24,129 INFO L85 PathProgramCache]: Analyzing trace with hash 194409745, now seen corresponding path program 1 times [2023-11-29 03:32:24,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:32:24,129 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2014715897] [2023-11-29 03:32:24,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:32:24,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:32:24,137 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:32:24,137 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [381423526] [2023-11-29 03:32:24,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:32:24,138 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:32:24,138 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d9e400-6823-4842-a47a-67e380efafb5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:32:24,139 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d9e400-6823-4842-a47a-67e380efafb5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:32:24,140 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d9e400-6823-4842-a47a-67e380efafb5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Waiting until timeout for monitored process [2023-11-29 03:32:24,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:32:24,195 INFO L262 TraceCheckSpWp]: Trace formula consists of 216 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-29 03:32:24,197 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:32:24,320 INFO L134 CoverageAnalysis]: Checked inductivity of 257 backedges. 6 proven. 211 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-11-29 03:32:24,320 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:32:24,458 INFO L134 CoverageAnalysis]: Checked inductivity of 257 backedges. 6 proven. 31 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2023-11-29 03:32:24,459 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:32:24,459 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2014715897] [2023-11-29 03:32:24,459 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:32:24,459 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [381423526] [2023-11-29 03:32:24,459 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [381423526] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 03:32:24,459 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 03:32:24,459 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 19 [2023-11-29 03:32:24,459 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1566486080] [2023-11-29 03:32:24,459 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 03:32:24,460 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-11-29 03:32:24,460 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:32:24,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-11-29 03:32:24,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=297, Unknown=0, NotChecked=0, Total=380 [2023-11-29 03:32:24,461 INFO L87 Difference]: Start difference. First operand 346 states and 423 transitions. Second operand has 20 states, 19 states have (on average 6.315789473684211) internal successors, (120), 20 states have internal predecessors, (120), 8 states have call successors, (22), 5 states have call predecessors, (22), 5 states have return successors, (22), 8 states have call predecessors, (22), 8 states have call successors, (22) [2023-11-29 03:32:24,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:32:24,687 INFO L93 Difference]: Finished difference Result 543 states and 668 transitions. [2023-11-29 03:32:24,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-11-29 03:32:24,687 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 19 states have (on average 6.315789473684211) internal successors, (120), 20 states have internal predecessors, (120), 8 states have call successors, (22), 5 states have call predecessors, (22), 5 states have return successors, (22), 8 states have call predecessors, (22), 8 states have call successors, (22) Word has length 110 [2023-11-29 03:32:24,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:32:24,689 INFO L225 Difference]: With dead ends: 543 [2023-11-29 03:32:24,689 INFO L226 Difference]: Without dead ends: 542 [2023-11-29 03:32:24,690 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 228 GetRequests, 200 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 132 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=223, Invalid=647, Unknown=0, NotChecked=0, Total=870 [2023-11-29 03:32:24,691 INFO L413 NwaCegarLoop]: 68 mSDtfsCounter, 131 mSDsluCounter, 623 mSDsCounter, 0 mSdLazyCounter, 144 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 131 SdHoareTripleChecker+Valid, 691 SdHoareTripleChecker+Invalid, 154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 144 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 03:32:24,691 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [131 Valid, 691 Invalid, 154 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 144 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 03:32:24,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 542 states. [2023-11-29 03:32:24,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 542 to 513. [2023-11-29 03:32:24,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 513 states, 446 states have (on average 1.2309417040358743) internal successors, (549), 457 states have internal predecessors, (549), 46 states have call successors, (46), 9 states have call predecessors, (46), 9 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2023-11-29 03:32:24,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 513 states to 513 states and 641 transitions. [2023-11-29 03:32:24,747 INFO L78 Accepts]: Start accepts. Automaton has 513 states and 641 transitions. Word has length 110 [2023-11-29 03:32:24,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:32:24,747 INFO L495 AbstractCegarLoop]: Abstraction has 513 states and 641 transitions. [2023-11-29 03:32:24,747 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 6.315789473684211) internal successors, (120), 20 states have internal predecessors, (120), 8 states have call successors, (22), 5 states have call predecessors, (22), 5 states have return successors, (22), 8 states have call predecessors, (22), 8 states have call successors, (22) [2023-11-29 03:32:24,747 INFO L276 IsEmpty]: Start isEmpty. Operand 513 states and 641 transitions. [2023-11-29 03:32:24,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2023-11-29 03:32:24,748 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:32:24,749 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-11-29 03:32:24,754 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d9e400-6823-4842-a47a-67e380efafb5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Ended with exit code 0 [2023-11-29 03:32:24,949 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d9e400-6823-4842-a47a-67e380efafb5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable35 [2023-11-29 03:32:24,949 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-29 03:32:24,949 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:32:24,949 INFO L85 PathProgramCache]: Analyzing trace with hash 783159845, now seen corresponding path program 1 times [2023-11-29 03:32:24,949 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:32:24,950 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1420483278] [2023-11-29 03:32:24,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:32:24,950 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:32:24,957 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:32:24,957 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [961404064] [2023-11-29 03:32:24,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:32:24,958 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:32:24,958 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d9e400-6823-4842-a47a-67e380efafb5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:32:24,958 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d9e400-6823-4842-a47a-67e380efafb5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:32:24,959 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d9e400-6823-4842-a47a-67e380efafb5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Waiting until timeout for monitored process [2023-11-29 03:32:25,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:32:25,013 INFO L262 TraceCheckSpWp]: Trace formula consists of 213 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-29 03:32:25,015 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:32:25,187 INFO L134 CoverageAnalysis]: Checked inductivity of 211 backedges. 10 proven. 21 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2023-11-29 03:32:25,187 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:32:28,424 INFO L134 CoverageAnalysis]: Checked inductivity of 211 backedges. 0 proven. 31 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2023-11-29 03:32:28,424 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:32:28,424 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1420483278] [2023-11-29 03:32:28,424 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:32:28,424 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [961404064] [2023-11-29 03:32:28,424 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [961404064] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 03:32:28,424 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 03:32:28,424 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 7] total 11 [2023-11-29 03:32:28,425 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [996049297] [2023-11-29 03:32:28,425 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 03:32:28,425 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 03:32:28,425 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:32:28,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 03:32:28,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=82, Unknown=0, NotChecked=0, Total=132 [2023-11-29 03:32:28,426 INFO L87 Difference]: Start difference. First operand 513 states and 641 transitions. Second operand has 12 states, 11 states have (on average 11.0) internal successors, (121), 12 states have internal predecessors, (121), 6 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 6 states have call predecessors, (20), 6 states have call successors, (20) [2023-11-29 03:32:28,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:32:28,567 INFO L93 Difference]: Finished difference Result 514 states and 641 transitions. [2023-11-29 03:32:28,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 03:32:28,567 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 11.0) internal successors, (121), 12 states have internal predecessors, (121), 6 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 6 states have call predecessors, (20), 6 states have call successors, (20) Word has length 110 [2023-11-29 03:32:28,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:32:28,570 INFO L225 Difference]: With dead ends: 514 [2023-11-29 03:32:28,570 INFO L226 Difference]: Without dead ends: 512 [2023-11-29 03:32:28,570 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 219 GetRequests, 208 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=62, Invalid=94, Unknown=0, NotChecked=0, Total=156 [2023-11-29 03:32:28,571 INFO L413 NwaCegarLoop]: 63 mSDtfsCounter, 115 mSDsluCounter, 131 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 194 SdHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 03:32:28,571 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 194 Invalid, 111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 03:32:28,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 512 states. [2023-11-29 03:32:28,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 512 to 511. [2023-11-29 03:32:28,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 511 states, 446 states have (on average 1.1928251121076232) internal successors, (532), 455 states have internal predecessors, (532), 46 states have call successors, (46), 9 states have call predecessors, (46), 9 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2023-11-29 03:32:28,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 511 states to 511 states and 624 transitions. [2023-11-29 03:32:28,619 INFO L78 Accepts]: Start accepts. Automaton has 511 states and 624 transitions. Word has length 110 [2023-11-29 03:32:28,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:32:28,620 INFO L495 AbstractCegarLoop]: Abstraction has 511 states and 624 transitions. [2023-11-29 03:32:28,620 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 11.0) internal successors, (121), 12 states have internal predecessors, (121), 6 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 6 states have call predecessors, (20), 6 states have call successors, (20) [2023-11-29 03:32:28,620 INFO L276 IsEmpty]: Start isEmpty. Operand 511 states and 624 transitions. [2023-11-29 03:32:28,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-11-29 03:32:28,621 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:32:28,621 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-11-29 03:32:28,626 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d9e400-6823-4842-a47a-67e380efafb5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Ended with exit code 0 [2023-11-29 03:32:28,822 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d9e400-6823-4842-a47a-67e380efafb5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2023-11-29 03:32:28,822 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-29 03:32:28,822 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:32:28,822 INFO L85 PathProgramCache]: Analyzing trace with hash -1491848454, now seen corresponding path program 1 times [2023-11-29 03:32:28,822 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:32:28,822 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [103231631] [2023-11-29 03:32:28,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:32:28,823 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:32:28,830 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:32:28,830 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1273694393] [2023-11-29 03:32:28,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:32:28,830 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:32:28,830 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d9e400-6823-4842-a47a-67e380efafb5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:32:28,831 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d9e400-6823-4842-a47a-67e380efafb5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:32:28,832 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d9e400-6823-4842-a47a-67e380efafb5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Waiting until timeout for monitored process [2023-11-29 03:32:28,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:32:28,895 INFO L262 TraceCheckSpWp]: Trace formula consists of 214 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-29 03:32:28,897 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:32:29,146 INFO L134 CoverageAnalysis]: Checked inductivity of 212 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2023-11-29 03:32:29,146 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:32:30,818 INFO L134 CoverageAnalysis]: Checked inductivity of 212 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2023-11-29 03:32:30,818 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:32:30,818 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [103231631] [2023-11-29 03:32:30,818 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:32:30,818 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1273694393] [2023-11-29 03:32:30,818 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1273694393] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 03:32:30,818 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 03:32:30,819 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2023-11-29 03:32:30,819 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1853545467] [2023-11-29 03:32:30,819 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 03:32:30,819 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 03:32:30,819 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:32:30,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 03:32:30,820 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=83, Unknown=0, NotChecked=0, Total=132 [2023-11-29 03:32:30,820 INFO L87 Difference]: Start difference. First operand 511 states and 624 transitions. Second operand has 12 states, 11 states have (on average 11.181818181818182) internal successors, (123), 12 states have internal predecessors, (123), 6 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 6 states have call predecessors, (20), 6 states have call successors, (20) [2023-11-29 03:32:32,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:32:32,010 INFO L93 Difference]: Finished difference Result 689 states and 829 transitions. [2023-11-29 03:32:32,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-29 03:32:32,011 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 11.181818181818182) internal successors, (123), 12 states have internal predecessors, (123), 6 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 6 states have call predecessors, (20), 6 states have call successors, (20) Word has length 111 [2023-11-29 03:32:32,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:32:32,013 INFO L225 Difference]: With dead ends: 689 [2023-11-29 03:32:32,013 INFO L226 Difference]: Without dead ends: 680 [2023-11-29 03:32:32,014 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 227 GetRequests, 210 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=135, Invalid=207, Unknown=0, NotChecked=0, Total=342 [2023-11-29 03:32:32,014 INFO L413 NwaCegarLoop]: 74 mSDtfsCounter, 229 mSDsluCounter, 362 mSDsCounter, 0 mSdLazyCounter, 502 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 231 SdHoareTripleChecker+Valid, 436 SdHoareTripleChecker+Invalid, 542 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 502 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-29 03:32:32,014 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [231 Valid, 436 Invalid, 542 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 502 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-29 03:32:32,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 680 states. [2023-11-29 03:32:32,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 680 to 623. [2023-11-29 03:32:32,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 623 states, 545 states have (on average 1.1724770642201834) internal successors, (639), 554 states have internal predecessors, (639), 59 states have call successors, (59), 9 states have call predecessors, (59), 9 states have return successors, (59), 59 states have call predecessors, (59), 59 states have call successors, (59) [2023-11-29 03:32:32,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 623 states to 623 states and 757 transitions. [2023-11-29 03:32:32,076 INFO L78 Accepts]: Start accepts. Automaton has 623 states and 757 transitions. Word has length 111 [2023-11-29 03:32:32,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:32:32,076 INFO L495 AbstractCegarLoop]: Abstraction has 623 states and 757 transitions. [2023-11-29 03:32:32,076 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 11.181818181818182) internal successors, (123), 12 states have internal predecessors, (123), 6 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 6 states have call predecessors, (20), 6 states have call successors, (20) [2023-11-29 03:32:32,077 INFO L276 IsEmpty]: Start isEmpty. Operand 623 states and 757 transitions. [2023-11-29 03:32:32,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2023-11-29 03:32:32,077 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:32:32,077 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:32:32,082 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d9e400-6823-4842-a47a-67e380efafb5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Ended with exit code 0 [2023-11-29 03:32:32,278 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d9e400-6823-4842-a47a-67e380efafb5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2023-11-29 03:32:32,278 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-29 03:32:32,278 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:32:32,278 INFO L85 PathProgramCache]: Analyzing trace with hash 2144174049, now seen corresponding path program 1 times [2023-11-29 03:32:32,278 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:32:32,278 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [277828642] [2023-11-29 03:32:32,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:32:32,279 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:32:32,286 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:32:32,286 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1093419518] [2023-11-29 03:32:32,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:32:32,286 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:32:32,286 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d9e400-6823-4842-a47a-67e380efafb5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:32:32,287 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d9e400-6823-4842-a47a-67e380efafb5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:32:32,288 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d9e400-6823-4842-a47a-67e380efafb5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Waiting until timeout for monitored process [2023-11-29 03:32:32,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:32:32,343 INFO L262 TraceCheckSpWp]: Trace formula consists of 220 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-29 03:32:32,345 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:32:32,479 INFO L134 CoverageAnalysis]: Checked inductivity of 258 backedges. 0 proven. 218 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-11-29 03:32:32,479 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:32:32,676 INFO L134 CoverageAnalysis]: Checked inductivity of 258 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2023-11-29 03:32:32,676 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:32:32,676 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [277828642] [2023-11-29 03:32:32,676 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:32:32,676 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1093419518] [2023-11-29 03:32:32,676 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1093419518] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 03:32:32,676 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 03:32:32,677 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 12] total 22 [2023-11-29 03:32:32,677 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [770954182] [2023-11-29 03:32:32,677 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 03:32:32,677 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2023-11-29 03:32:32,677 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:32:32,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2023-11-29 03:32:32,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=107, Invalid=355, Unknown=0, NotChecked=0, Total=462 [2023-11-29 03:32:32,678 INFO L87 Difference]: Start difference. First operand 623 states and 757 transitions. Second operand has 22 states, 22 states have (on average 5.818181818181818) internal successors, (128), 22 states have internal predecessors, (128), 8 states have call successors, (22), 5 states have call predecessors, (22), 5 states have return successors, (22), 8 states have call predecessors, (22), 8 states have call successors, (22) [2023-11-29 03:32:33,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:32:33,182 INFO L93 Difference]: Finished difference Result 898 states and 1074 transitions. [2023-11-29 03:32:33,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2023-11-29 03:32:33,183 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 5.818181818181818) internal successors, (128), 22 states have internal predecessors, (128), 8 states have call successors, (22), 5 states have call predecessors, (22), 5 states have return successors, (22), 8 states have call predecessors, (22), 8 states have call successors, (22) Word has length 112 [2023-11-29 03:32:33,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:32:33,187 INFO L225 Difference]: With dead ends: 898 [2023-11-29 03:32:33,187 INFO L226 Difference]: Without dead ends: 734 [2023-11-29 03:32:33,188 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 245 GetRequests, 202 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 412 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=467, Invalid=1513, Unknown=0, NotChecked=0, Total=1980 [2023-11-29 03:32:33,189 INFO L413 NwaCegarLoop]: 66 mSDtfsCounter, 172 mSDsluCounter, 516 mSDsCounter, 0 mSdLazyCounter, 193 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 172 SdHoareTripleChecker+Valid, 582 SdHoareTripleChecker+Invalid, 204 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 193 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 03:32:33,189 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [172 Valid, 582 Invalid, 204 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 193 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 03:32:33,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 734 states. [2023-11-29 03:32:33,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 734 to 711. [2023-11-29 03:32:33,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 711 states, 618 states have (on average 1.145631067961165) internal successors, (708), 627 states have internal predecessors, (708), 67 states have call successors, (67), 16 states have call predecessors, (67), 16 states have return successors, (67), 67 states have call predecessors, (67), 67 states have call successors, (67) [2023-11-29 03:32:33,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 711 states to 711 states and 842 transitions. [2023-11-29 03:32:33,267 INFO L78 Accepts]: Start accepts. Automaton has 711 states and 842 transitions. Word has length 112 [2023-11-29 03:32:33,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:32:33,267 INFO L495 AbstractCegarLoop]: Abstraction has 711 states and 842 transitions. [2023-11-29 03:32:33,267 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 5.818181818181818) internal successors, (128), 22 states have internal predecessors, (128), 8 states have call successors, (22), 5 states have call predecessors, (22), 5 states have return successors, (22), 8 states have call predecessors, (22), 8 states have call successors, (22) [2023-11-29 03:32:33,267 INFO L276 IsEmpty]: Start isEmpty. Operand 711 states and 842 transitions. [2023-11-29 03:32:33,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2023-11-29 03:32:33,268 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:32:33,268 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:32:33,273 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d9e400-6823-4842-a47a-67e380efafb5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Ended with exit code 0 [2023-11-29 03:32:33,469 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 38 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d9e400-6823-4842-a47a-67e380efafb5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2023-11-29 03:32:33,470 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-29 03:32:33,470 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:32:33,470 INFO L85 PathProgramCache]: Analyzing trace with hash 2044886730, now seen corresponding path program 2 times [2023-11-29 03:32:33,471 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:32:33,471 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1362097311] [2023-11-29 03:32:33,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:32:33,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:32:33,480 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:32:33,480 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [319343590] [2023-11-29 03:32:33,481 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 03:32:33,481 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:32:33,481 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d9e400-6823-4842-a47a-67e380efafb5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:32:33,482 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d9e400-6823-4842-a47a-67e380efafb5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:32:33,483 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d9e400-6823-4842-a47a-67e380efafb5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Waiting until timeout for monitored process [2023-11-29 03:32:33,548 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 03:32:33,548 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 03:32:33,549 INFO L262 TraceCheckSpWp]: Trace formula consists of 221 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-29 03:32:33,552 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:32:33,910 INFO L134 CoverageAnalysis]: Checked inductivity of 260 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2023-11-29 03:32:33,910 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:32:34,536 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:32:34,536 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1362097311] [2023-11-29 03:32:34,537 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:32:34,537 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [319343590] [2023-11-29 03:32:34,537 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [319343590] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 03:32:34,537 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 03:32:34,537 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2023-11-29 03:32:34,537 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1951850183] [2023-11-29 03:32:34,537 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 03:32:34,537 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 03:32:34,537 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:32:34,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 03:32:34,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2023-11-29 03:32:34,538 INFO L87 Difference]: Start difference. First operand 711 states and 842 transitions. Second operand has 9 states, 8 states have (on average 7.625) internal successors, (61), 9 states have internal predecessors, (61), 3 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2023-11-29 03:32:35,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:32:35,023 INFO L93 Difference]: Finished difference Result 750 states and 884 transitions. [2023-11-29 03:32:35,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 03:32:35,024 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 7.625) internal successors, (61), 9 states have internal predecessors, (61), 3 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 113 [2023-11-29 03:32:35,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:32:35,027 INFO L225 Difference]: With dead ends: 750 [2023-11-29 03:32:35,027 INFO L226 Difference]: Without dead ends: 749 [2023-11-29 03:32:35,028 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2023-11-29 03:32:35,028 INFO L413 NwaCegarLoop]: 80 mSDtfsCounter, 124 mSDsluCounter, 221 mSDsCounter, 0 mSdLazyCounter, 243 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 133 SdHoareTripleChecker+Valid, 301 SdHoareTripleChecker+Invalid, 248 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 243 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 03:32:35,028 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [133 Valid, 301 Invalid, 248 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 243 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 03:32:35,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 749 states. [2023-11-29 03:32:35,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 749 to 711. [2023-11-29 03:32:35,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 711 states, 618 states have (on average 1.1440129449838188) internal successors, (707), 627 states have internal predecessors, (707), 67 states have call successors, (67), 16 states have call predecessors, (67), 16 states have return successors, (67), 67 states have call predecessors, (67), 67 states have call successors, (67) [2023-11-29 03:32:35,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 711 states to 711 states and 841 transitions. [2023-11-29 03:32:35,102 INFO L78 Accepts]: Start accepts. Automaton has 711 states and 841 transitions. Word has length 113 [2023-11-29 03:32:35,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:32:35,102 INFO L495 AbstractCegarLoop]: Abstraction has 711 states and 841 transitions. [2023-11-29 03:32:35,102 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 7.625) internal successors, (61), 9 states have internal predecessors, (61), 3 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2023-11-29 03:32:35,102 INFO L276 IsEmpty]: Start isEmpty. Operand 711 states and 841 transitions. [2023-11-29 03:32:35,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2023-11-29 03:32:35,103 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:32:35,104 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:32:35,109 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d9e400-6823-4842-a47a-67e380efafb5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Forceful destruction successful, exit code 0 [2023-11-29 03:32:35,304 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 39 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d9e400-6823-4842-a47a-67e380efafb5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2023-11-29 03:32:35,304 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-29 03:32:35,304 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:32:35,304 INFO L85 PathProgramCache]: Analyzing trace with hash -529396233, now seen corresponding path program 1 times [2023-11-29 03:32:35,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:32:35,305 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [109550399] [2023-11-29 03:32:35,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:32:35,305 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:32:35,312 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:32:35,313 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1907987689] [2023-11-29 03:32:35,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:32:35,313 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:32:35,313 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d9e400-6823-4842-a47a-67e380efafb5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:32:35,314 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d9e400-6823-4842-a47a-67e380efafb5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:32:35,316 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d9e400-6823-4842-a47a-67e380efafb5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Waiting until timeout for monitored process [2023-11-29 03:32:35,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:32:35,377 INFO L262 TraceCheckSpWp]: Trace formula consists of 255 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-29 03:32:35,379 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:32:35,715 INFO L134 CoverageAnalysis]: Checked inductivity of 366 backedges. 0 proven. 54 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2023-11-29 03:32:35,715 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:32:36,762 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:32:36,762 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [109550399] [2023-11-29 03:32:36,762 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:32:36,763 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1907987689] [2023-11-29 03:32:36,763 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1907987689] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 03:32:36,763 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 03:32:36,763 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2023-11-29 03:32:36,763 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [656405378] [2023-11-29 03:32:36,763 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 03:32:36,763 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 03:32:36,763 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:32:36,764 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 03:32:36,764 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=194, Unknown=0, NotChecked=0, Total=272 [2023-11-29 03:32:36,764 INFO L87 Difference]: Start difference. First operand 711 states and 841 transitions. Second operand has 10 states, 9 states have (on average 8.11111111111111) internal successors, (73), 10 states have internal predecessors, (73), 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 03:32:37,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:32:37,591 INFO L93 Difference]: Finished difference Result 733 states and 853 transitions. [2023-11-29 03:32:37,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-29 03:32:37,592 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 8.11111111111111) internal successors, (73), 10 states have internal predecessors, (73), 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 135 [2023-11-29 03:32:37,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:32:37,596 INFO L225 Difference]: With dead ends: 733 [2023-11-29 03:32:37,596 INFO L226 Difference]: Without dead ends: 732 [2023-11-29 03:32:37,596 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 230 GetRequests, 205 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=212, Invalid=490, Unknown=0, NotChecked=0, Total=702 [2023-11-29 03:32:37,597 INFO L413 NwaCegarLoop]: 73 mSDtfsCounter, 150 mSDsluCounter, 381 mSDsCounter, 0 mSdLazyCounter, 299 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 454 SdHoareTripleChecker+Invalid, 323 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 299 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-29 03:32:37,597 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [152 Valid, 454 Invalid, 323 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 299 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-29 03:32:37,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 732 states. [2023-11-29 03:32:37,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 732 to 711. [2023-11-29 03:32:37,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 711 states, 618 states have (on average 1.1423948220064726) internal successors, (706), 627 states have internal predecessors, (706), 67 states have call successors, (67), 16 states have call predecessors, (67), 16 states have return successors, (67), 67 states have call predecessors, (67), 67 states have call successors, (67) [2023-11-29 03:32:37,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 711 states to 711 states and 840 transitions. [2023-11-29 03:32:37,676 INFO L78 Accepts]: Start accepts. Automaton has 711 states and 840 transitions. Word has length 135 [2023-11-29 03:32:37,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:32:37,676 INFO L495 AbstractCegarLoop]: Abstraction has 711 states and 840 transitions. [2023-11-29 03:32:37,676 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 8.11111111111111) internal successors, (73), 10 states have internal predecessors, (73), 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 03:32:37,676 INFO L276 IsEmpty]: Start isEmpty. Operand 711 states and 840 transitions. [2023-11-29 03:32:37,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2023-11-29 03:32:37,677 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:32:37,678 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2023-11-29 03:32:37,682 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d9e400-6823-4842-a47a-67e380efafb5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Ended with exit code 0 [2023-11-29 03:32:37,878 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40,40 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d9e400-6823-4842-a47a-67e380efafb5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:32:37,878 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-29 03:32:37,878 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:32:37,878 INFO L85 PathProgramCache]: Analyzing trace with hash 1669729257, now seen corresponding path program 3 times [2023-11-29 03:32:37,878 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:32:37,879 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2037195963] [2023-11-29 03:32:37,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:32:37,879 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:32:37,888 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:32:37,888 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [674069776] [2023-11-29 03:32:37,888 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-29 03:32:37,889 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:32:37,889 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d9e400-6823-4842-a47a-67e380efafb5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:32:37,890 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d9e400-6823-4842-a47a-67e380efafb5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:32:37,894 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d9e400-6823-4842-a47a-67e380efafb5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Waiting until timeout for monitored process [2023-11-29 03:32:37,950 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-11-29 03:32:37,950 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 03:32:37,951 INFO L262 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 14 conjunts are in the unsatisfiable core [2023-11-29 03:32:37,953 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:32:39,774 INFO L134 CoverageAnalysis]: Checked inductivity of 442 backedges. 30 proven. 6 refuted. 0 times theorem prover too weak. 406 trivial. 0 not checked. [2023-11-29 03:32:39,775 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:32:40,761 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:32:40,761 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2037195963] [2023-11-29 03:32:40,761 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:32:40,761 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [674069776] [2023-11-29 03:32:40,761 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [674069776] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 03:32:40,761 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 03:32:40,762 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2023-11-29 03:32:40,762 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [882599423] [2023-11-29 03:32:40,762 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 03:32:40,762 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 03:32:40,762 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:32:40,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 03:32:40,763 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=89, Unknown=2, NotChecked=0, Total=132 [2023-11-29 03:32:40,763 INFO L87 Difference]: Start difference. First operand 711 states and 840 transitions. Second operand has 9 states, 8 states have (on average 6.375) internal successors, (51), 9 states have internal predecessors, (51), 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 03:32:43,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:32:43,868 INFO L93 Difference]: Finished difference Result 781 states and 919 transitions. [2023-11-29 03:32:43,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 03:32:43,868 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 6.375) internal successors, (51), 9 states have internal predecessors, (51), 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 139 [2023-11-29 03:32:43,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:32:43,871 INFO L225 Difference]: With dead ends: 781 [2023-11-29 03:32:43,871 INFO L226 Difference]: Without dead ends: 780 [2023-11-29 03:32:43,872 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 145 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=54, Invalid=126, Unknown=2, NotChecked=0, Total=182 [2023-11-29 03:32:43,872 INFO L413 NwaCegarLoop]: 52 mSDtfsCounter, 123 mSDsluCounter, 156 mSDsCounter, 0 mSdLazyCounter, 193 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 131 SdHoareTripleChecker+Valid, 208 SdHoareTripleChecker+Invalid, 203 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 193 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2023-11-29 03:32:43,872 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [131 Valid, 208 Invalid, 203 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 193 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2023-11-29 03:32:43,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 780 states. [2023-11-29 03:32:43,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 780 to 711. [2023-11-29 03:32:43,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 711 states, 618 states have (on average 1.13915857605178) internal successors, (704), 627 states have internal predecessors, (704), 67 states have call successors, (67), 16 states have call predecessors, (67), 16 states have return successors, (67), 67 states have call predecessors, (67), 67 states have call successors, (67) [2023-11-29 03:32:43,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 711 states to 711 states and 838 transitions. [2023-11-29 03:32:43,945 INFO L78 Accepts]: Start accepts. Automaton has 711 states and 838 transitions. Word has length 139 [2023-11-29 03:32:43,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:32:43,946 INFO L495 AbstractCegarLoop]: Abstraction has 711 states and 838 transitions. [2023-11-29 03:32:43,946 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 6.375) internal successors, (51), 9 states have internal predecessors, (51), 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 03:32:43,946 INFO L276 IsEmpty]: Start isEmpty. Operand 711 states and 838 transitions. [2023-11-29 03:32:43,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2023-11-29 03:32:43,947 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:32:43,947 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:32:43,951 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d9e400-6823-4842-a47a-67e380efafb5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Ended with exit code 0 [2023-11-29 03:32:44,147 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41,41 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d9e400-6823-4842-a47a-67e380efafb5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:32:44,148 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-29 03:32:44,148 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:32:44,148 INFO L85 PathProgramCache]: Analyzing trace with hash -1859147888, now seen corresponding path program 2 times [2023-11-29 03:32:44,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:32:44,148 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [424542775] [2023-11-29 03:32:44,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:32:44,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:32:44,159 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:32:44,159 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1729008527] [2023-11-29 03:32:44,159 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 03:32:44,159 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:32:44,160 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d9e400-6823-4842-a47a-67e380efafb5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:32:44,161 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d9e400-6823-4842-a47a-67e380efafb5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:32:44,161 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d9e400-6823-4842-a47a-67e380efafb5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Waiting until timeout for monitored process [2023-11-29 03:32:44,229 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 03:32:44,229 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 03:32:44,231 INFO L262 TraceCheckSpWp]: Trace formula consists of 259 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-29 03:32:44,233 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:32:44,307 INFO L134 CoverageAnalysis]: Checked inductivity of 336 backedges. 122 proven. 23 refuted. 0 times theorem prover too weak. 191 trivial. 0 not checked. [2023-11-29 03:32:44,308 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:32:44,429 INFO L134 CoverageAnalysis]: Checked inductivity of 336 backedges. 42 proven. 23 refuted. 0 times theorem prover too weak. 271 trivial. 0 not checked. [2023-11-29 03:32:44,429 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:32:44,430 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [424542775] [2023-11-29 03:32:44,430 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:32:44,430 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1729008527] [2023-11-29 03:32:44,430 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1729008527] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 03:32:44,430 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 03:32:44,430 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 5 [2023-11-29 03:32:44,430 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [246959614] [2023-11-29 03:32:44,430 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 03:32:44,431 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 03:32:44,431 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:32:44,431 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 03:32:44,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-29 03:32:44,432 INFO L87 Difference]: Start difference. First operand 711 states and 838 transitions. Second operand has 5 states, 5 states have (on average 20.4) internal successors, (102), 5 states have internal predecessors, (102), 4 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 4 states have call predecessors, (19), 4 states have call successors, (19) [2023-11-29 03:32:44,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:32:44,586 INFO L93 Difference]: Finished difference Result 736 states and 856 transitions. [2023-11-29 03:32:44,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 03:32:44,587 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.4) internal successors, (102), 5 states have internal predecessors, (102), 4 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 4 states have call predecessors, (19), 4 states have call successors, (19) Word has length 139 [2023-11-29 03:32:44,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:32:44,590 INFO L225 Difference]: With dead ends: 736 [2023-11-29 03:32:44,590 INFO L226 Difference]: Without dead ends: 538 [2023-11-29 03:32:44,591 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 276 GetRequests, 273 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-29 03:32:44,591 INFO L413 NwaCegarLoop]: 84 mSDtfsCounter, 10 mSDsluCounter, 156 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 240 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 03:32:44,591 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 240 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 03:32:44,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 538 states. [2023-11-29 03:32:44,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 538 to 531. [2023-11-29 03:32:44,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 531 states, 453 states have (on average 1.1501103752759383) internal successors, (521), 462 states have internal predecessors, (521), 53 states have call successors, (53), 15 states have call predecessors, (53), 15 states have return successors, (53), 53 states have call predecessors, (53), 53 states have call successors, (53) [2023-11-29 03:32:44,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 531 states to 531 states and 627 transitions. [2023-11-29 03:32:44,677 INFO L78 Accepts]: Start accepts. Automaton has 531 states and 627 transitions. Word has length 139 [2023-11-29 03:32:44,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:32:44,678 INFO L495 AbstractCegarLoop]: Abstraction has 531 states and 627 transitions. [2023-11-29 03:32:44,678 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.4) internal successors, (102), 5 states have internal predecessors, (102), 4 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 4 states have call predecessors, (19), 4 states have call successors, (19) [2023-11-29 03:32:44,678 INFO L276 IsEmpty]: Start isEmpty. Operand 531 states and 627 transitions. [2023-11-29 03:32:44,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2023-11-29 03:32:44,679 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:32:44,679 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:32:44,685 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d9e400-6823-4842-a47a-67e380efafb5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Forceful destruction successful, exit code 0 [2023-11-29 03:32:44,879 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 42 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d9e400-6823-4842-a47a-67e380efafb5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable42 [2023-11-29 03:32:44,880 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-29 03:32:44,880 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:32:44,880 INFO L85 PathProgramCache]: Analyzing trace with hash -1707949685, now seen corresponding path program 2 times [2023-11-29 03:32:44,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:32:44,880 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1162556093] [2023-11-29 03:32:44,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:32:44,881 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:32:44,889 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:32:44,889 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [197335094] [2023-11-29 03:32:44,889 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 03:32:44,889 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:32:44,890 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d9e400-6823-4842-a47a-67e380efafb5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:32:44,890 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d9e400-6823-4842-a47a-67e380efafb5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:32:44,892 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d9e400-6823-4842-a47a-67e380efafb5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Waiting until timeout for monitored process [2023-11-29 03:32:45,071 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 03:32:45,071 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 03:32:45,073 INFO L262 TraceCheckSpWp]: Trace formula consists of 268 conjuncts, 29 conjunts are in the unsatisfiable core [2023-11-29 03:32:45,075 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:32:45,895 INFO L134 CoverageAnalysis]: Checked inductivity of 444 backedges. 0 proven. 80 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-11-29 03:32:45,896 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:32:51,799 INFO L134 CoverageAnalysis]: Checked inductivity of 444 backedges. 0 proven. 80 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-11-29 03:32:51,799 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:32:51,799 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1162556093] [2023-11-29 03:32:51,800 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:32:51,800 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [197335094] [2023-11-29 03:32:51,800 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [197335094] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 03:32:51,800 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 03:32:51,800 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 21 [2023-11-29 03:32:51,800 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [259275869] [2023-11-29 03:32:51,800 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 03:32:51,800 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2023-11-29 03:32:51,800 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:32:51,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2023-11-29 03:32:51,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=124, Invalid=338, Unknown=0, NotChecked=0, Total=462 [2023-11-29 03:32:51,801 INFO L87 Difference]: Start difference. First operand 531 states and 627 transitions. Second operand has 22 states, 21 states have (on average 6.809523809523809) internal successors, (143), 22 states have internal predecessors, (143), 8 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 8 states have call predecessors, (28), 8 states have call successors, (28) [2023-11-29 03:33:05,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:33:05,749 INFO L93 Difference]: Finished difference Result 701 states and 824 transitions. [2023-11-29 03:33:05,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2023-11-29 03:33:05,749 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 6.809523809523809) internal successors, (143), 22 states have internal predecessors, (143), 8 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 8 states have call predecessors, (28), 8 states have call successors, (28) Word has length 141 [2023-11-29 03:33:05,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:33:05,752 INFO L225 Difference]: With dead ends: 701 [2023-11-29 03:33:05,752 INFO L226 Difference]: Without dead ends: 699 [2023-11-29 03:33:05,753 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 296 GetRequests, 259 SyntacticMatches, 1 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 148 ImplicationChecksByTransitivity, 7.6s TimeCoverageRelationStatistics Valid=402, Invalid=1004, Unknown=0, NotChecked=0, Total=1406 [2023-11-29 03:33:05,753 INFO L413 NwaCegarLoop]: 77 mSDtfsCounter, 516 mSDsluCounter, 651 mSDsCounter, 0 mSdLazyCounter, 1448 mSolverCounterSat, 110 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 523 SdHoareTripleChecker+Valid, 728 SdHoareTripleChecker+Invalid, 1558 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 110 IncrementalHoareTripleChecker+Valid, 1448 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.1s IncrementalHoareTripleChecker+Time [2023-11-29 03:33:05,753 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [523 Valid, 728 Invalid, 1558 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [110 Valid, 1448 Invalid, 0 Unknown, 0 Unchecked, 7.1s Time] [2023-11-29 03:33:05,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 699 states. [2023-11-29 03:33:05,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 699 to 661. [2023-11-29 03:33:05,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 661 states, 572 states have (on average 1.152097902097902) internal successors, (659), 581 states have internal predecessors, (659), 64 states have call successors, (64), 15 states have call predecessors, (64), 15 states have return successors, (64), 64 states have call predecessors, (64), 64 states have call successors, (64) [2023-11-29 03:33:05,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 661 states to 661 states and 787 transitions. [2023-11-29 03:33:05,833 INFO L78 Accepts]: Start accepts. Automaton has 661 states and 787 transitions. Word has length 141 [2023-11-29 03:33:05,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:33:05,833 INFO L495 AbstractCegarLoop]: Abstraction has 661 states and 787 transitions. [2023-11-29 03:33:05,833 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 6.809523809523809) internal successors, (143), 22 states have internal predecessors, (143), 8 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 8 states have call predecessors, (28), 8 states have call successors, (28) [2023-11-29 03:33:05,833 INFO L276 IsEmpty]: Start isEmpty. Operand 661 states and 787 transitions. [2023-11-29 03:33:05,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2023-11-29 03:33:05,834 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:33:05,834 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2023-11-29 03:33:05,839 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d9e400-6823-4842-a47a-67e380efafb5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Ended with exit code 0 [2023-11-29 03:33:06,034 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 43 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d9e400-6823-4842-a47a-67e380efafb5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable43 [2023-11-29 03:33:06,035 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-29 03:33:06,035 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:33:06,035 INFO L85 PathProgramCache]: Analyzing trace with hash 1517631170, now seen corresponding path program 4 times [2023-11-29 03:33:06,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:33:06,035 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [201582469] [2023-11-29 03:33:06,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:33:06,035 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:33:06,043 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:33:06,043 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1621069810] [2023-11-29 03:33:06,043 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-11-29 03:33:06,043 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:33:06,043 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d9e400-6823-4842-a47a-67e380efafb5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:33:06,044 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d9e400-6823-4842-a47a-67e380efafb5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:33:06,045 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d9e400-6823-4842-a47a-67e380efafb5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (44)] Waiting until timeout for monitored process [2023-11-29 03:33:06,244 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-11-29 03:33:06,244 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 03:33:06,246 INFO L262 TraceCheckSpWp]: Trace formula consists of 270 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-29 03:33:06,249 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:33:06,806 INFO L134 CoverageAnalysis]: Checked inductivity of 380 backedges. 0 proven. 68 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2023-11-29 03:33:06,806 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:33:07,798 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:33:07,798 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [201582469] [2023-11-29 03:33:07,798 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:33:07,798 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1621069810] [2023-11-29 03:33:07,798 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1621069810] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 03:33:07,798 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 03:33:07,798 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2023-11-29 03:33:07,798 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1645104791] [2023-11-29 03:33:07,798 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 03:33:07,799 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-29 03:33:07,799 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:33:07,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-29 03:33:07,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2023-11-29 03:33:07,800 INFO L87 Difference]: Start difference. First operand 661 states and 787 transitions. Second operand has 13 states, 12 states have (on average 6.75) internal successors, (81), 13 states have internal predecessors, (81), 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 03:33:08,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:33:08,361 INFO L93 Difference]: Finished difference Result 756 states and 897 transitions. [2023-11-29 03:33:08,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-29 03:33:08,362 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 6.75) internal successors, (81), 13 states have internal predecessors, (81), 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 143 [2023-11-29 03:33:08,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:33:08,365 INFO L225 Difference]: With dead ends: 756 [2023-11-29 03:33:08,365 INFO L226 Difference]: Without dead ends: 754 [2023-11-29 03:33:08,365 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 145 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=74, Invalid=198, Unknown=0, NotChecked=0, Total=272 [2023-11-29 03:33:08,366 INFO L413 NwaCegarLoop]: 79 mSDtfsCounter, 66 mSDsluCounter, 416 mSDsCounter, 0 mSdLazyCounter, 800 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 495 SdHoareTripleChecker+Invalid, 804 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 800 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-29 03:33:08,366 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 495 Invalid, 804 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 800 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-29 03:33:08,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 754 states. [2023-11-29 03:33:08,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 754 to 699. [2023-11-29 03:33:08,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 699 states, 608 states have (on average 1.1513157894736843) internal successors, (700), 617 states have internal predecessors, (700), 66 states have call successors, (66), 15 states have call predecessors, (66), 15 states have return successors, (66), 66 states have call predecessors, (66), 66 states have call successors, (66) [2023-11-29 03:33:08,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 699 states to 699 states and 832 transitions. [2023-11-29 03:33:08,452 INFO L78 Accepts]: Start accepts. Automaton has 699 states and 832 transitions. Word has length 143 [2023-11-29 03:33:08,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:33:08,452 INFO L495 AbstractCegarLoop]: Abstraction has 699 states and 832 transitions. [2023-11-29 03:33:08,452 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 6.75) internal successors, (81), 13 states have internal predecessors, (81), 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 03:33:08,453 INFO L276 IsEmpty]: Start isEmpty. Operand 699 states and 832 transitions. [2023-11-29 03:33:08,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2023-11-29 03:33:08,453 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:33:08,454 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2023-11-29 03:33:08,458 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d9e400-6823-4842-a47a-67e380efafb5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (44)] Forceful destruction successful, exit code 0 [2023-11-29 03:33:08,654 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 44 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d9e400-6823-4842-a47a-67e380efafb5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable44 [2023-11-29 03:33:08,654 INFO L420 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-29 03:33:08,654 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:33:08,655 INFO L85 PathProgramCache]: Analyzing trace with hash -1845323228, now seen corresponding path program 3 times [2023-11-29 03:33:08,655 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:33:08,655 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [836176331] [2023-11-29 03:33:08,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:33:08,655 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:33:08,662 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:33:08,663 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [691036966] [2023-11-29 03:33:08,663 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-29 03:33:08,663 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:33:08,663 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d9e400-6823-4842-a47a-67e380efafb5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:33:08,664 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d9e400-6823-4842-a47a-67e380efafb5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:33:08,665 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d9e400-6823-4842-a47a-67e380efafb5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Waiting until timeout for monitored process [2023-11-29 03:33:08,732 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2023-11-29 03:33:08,732 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 03:33:08,734 INFO L262 TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 40 conjunts are in the unsatisfiable core [2023-11-29 03:33:08,737 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:33:10,055 INFO L134 CoverageAnalysis]: Checked inductivity of 384 backedges. 0 proven. 72 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2023-11-29 03:33:10,055 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:35:07,015 INFO L134 CoverageAnalysis]: Checked inductivity of 384 backedges. 0 proven. 72 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2023-11-29 03:35:07,015 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:35:07,015 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [836176331] [2023-11-29 03:35:07,015 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:35:07,016 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [691036966] [2023-11-29 03:35:07,016 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [691036966] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 03:35:07,016 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 03:35:07,016 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 13] total 27 [2023-11-29 03:35:07,016 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2051411840] [2023-11-29 03:35:07,016 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 03:35:07,017 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2023-11-29 03:35:07,017 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:35:07,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2023-11-29 03:35:07,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=188, Invalid=568, Unknown=0, NotChecked=0, Total=756 [2023-11-29 03:35:07,018 INFO L87 Difference]: Start difference. First operand 699 states and 832 transitions. Second operand has 28 states, 27 states have (on average 6.037037037037037) internal successors, (163), 28 states have internal predecessors, (163), 8 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 8 states have call predecessors, (26), 8 states have call successors, (26) [2023-11-29 03:35:18,812 WARN L293 SmtUtils]: Spent 10.54s on a formula simplification. DAG size of input: 191 DAG size of output: 72 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-11-29 03:35:27,844 WARN L293 SmtUtils]: Spent 6.91s on a formula simplification. DAG size of input: 155 DAG size of output: 75 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-11-29 03:35:30,930 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.54s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 03:35:32,703 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 03:35:37,352 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 03:35:39,940 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.59s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 03:35:42,940 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.73s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 03:35:47,054 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.27s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 03:36:04,105 WARN L293 SmtUtils]: Spent 16.32s on a formula simplification. DAG size of input: 137 DAG size of output: 115 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-11-29 03:36:20,559 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 03:36:34,207 WARN L293 SmtUtils]: Spent 6.38s on a formula simplification. DAG size of input: 151 DAG size of output: 75 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-11-29 03:36:47,099 WARN L293 SmtUtils]: Spent 11.38s on a formula simplification. DAG size of input: 192 DAG size of output: 79 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-11-29 03:36:51,654 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 03:37:04,068 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 03:37:20,581 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.69s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 03:37:22,379 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.62s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 03:37:36,881 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.91s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 03:37:43,319 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 03:37:44,995 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 03:38:20,196 WARN L293 SmtUtils]: Spent 29.98s on a formula simplification. DAG size of input: 195 DAG size of output: 77 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-11-29 03:38:29,723 WARN L293 SmtUtils]: Spent 8.21s on a formula simplification. DAG size of input: 161 DAG size of output: 80 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-11-29 03:39:15,987 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.95s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 03:39:27,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:39:27,712 INFO L93 Difference]: Finished difference Result 941 states and 1110 transitions. [2023-11-29 03:39:27,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2023-11-29 03:39:27,713 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 27 states have (on average 6.037037037037037) internal successors, (163), 28 states have internal predecessors, (163), 8 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 8 states have call predecessors, (26), 8 states have call successors, (26) Word has length 145 [2023-11-29 03:39:27,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:39:27,716 INFO L225 Difference]: With dead ends: 941 [2023-11-29 03:39:27,716 INFO L226 Difference]: Without dead ends: 821 [2023-11-29 03:39:27,717 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 313 GetRequests, 262 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 485 ImplicationChecksByTransitivity, 181.2s TimeCoverageRelationStatistics Valid=735, Invalid=2016, Unknown=5, NotChecked=0, Total=2756 [2023-11-29 03:39:27,717 INFO L413 NwaCegarLoop]: 70 mSDtfsCounter, 726 mSDsluCounter, 864 mSDsCounter, 0 mSdLazyCounter, 2082 mSolverCounterSat, 134 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 89.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 728 SdHoareTripleChecker+Valid, 934 SdHoareTripleChecker+Invalid, 2218 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 134 IncrementalHoareTripleChecker+Valid, 2082 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 89.8s IncrementalHoareTripleChecker+Time [2023-11-29 03:39:27,717 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [728 Valid, 934 Invalid, 2218 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [134 Valid, 2082 Invalid, 2 Unknown, 0 Unchecked, 89.8s Time] [2023-11-29 03:39:27,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 821 states. [2023-11-29 03:39:27,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 821 to 737. [2023-11-29 03:39:27,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 737 states, 642 states have (on average 1.1557632398753894) internal successors, (742), 651 states have internal predecessors, (742), 70 states have call successors, (70), 15 states have call predecessors, (70), 15 states have return successors, (70), 70 states have call predecessors, (70), 70 states have call successors, (70) [2023-11-29 03:39:27,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 737 states to 737 states and 882 transitions. [2023-11-29 03:39:27,880 INFO L78 Accepts]: Start accepts. Automaton has 737 states and 882 transitions. Word has length 145 [2023-11-29 03:39:27,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:39:27,880 INFO L495 AbstractCegarLoop]: Abstraction has 737 states and 882 transitions. [2023-11-29 03:39:27,880 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 27 states have (on average 6.037037037037037) internal successors, (163), 28 states have internal predecessors, (163), 8 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 8 states have call predecessors, (26), 8 states have call successors, (26) [2023-11-29 03:39:27,880 INFO L276 IsEmpty]: Start isEmpty. Operand 737 states and 882 transitions. [2023-11-29 03:39:27,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2023-11-29 03:39:27,882 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:39:27,882 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2023-11-29 03:39:27,887 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d9e400-6823-4842-a47a-67e380efafb5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Ended with exit code 0 [2023-11-29 03:39:28,082 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45,45 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d9e400-6823-4842-a47a-67e380efafb5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:39:28,083 INFO L420 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-29 03:39:28,083 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:39:28,083 INFO L85 PathProgramCache]: Analyzing trace with hash 2042977251, now seen corresponding path program 2 times [2023-11-29 03:39:28,083 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:39:28,083 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [480277874] [2023-11-29 03:39:28,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:39:28,083 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:39:28,091 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:39:28,091 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [98992330] [2023-11-29 03:39:28,091 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 03:39:28,091 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:39:28,091 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d9e400-6823-4842-a47a-67e380efafb5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:39:28,092 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d9e400-6823-4842-a47a-67e380efafb5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:39:28,093 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d9e400-6823-4842-a47a-67e380efafb5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (46)] Waiting until timeout for monitored process [2023-11-29 03:39:28,172 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 03:39:28,172 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 03:39:28,174 INFO L262 TraceCheckSpWp]: Trace formula consists of 295 conjuncts, 31 conjunts are in the unsatisfiable core [2023-11-29 03:39:28,176 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:39:29,603 INFO L134 CoverageAnalysis]: Checked inductivity of 502 backedges. 14 proven. 68 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-11-29 03:39:29,603 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:39:31,720 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:39:31,721 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [480277874] [2023-11-29 03:39:31,721 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:39:31,721 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [98992330] [2023-11-29 03:39:31,721 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [98992330] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 03:39:31,721 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 03:39:31,721 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2023-11-29 03:39:31,721 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [4104412] [2023-11-29 03:39:31,721 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 03:39:31,722 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-11-29 03:39:31,722 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:39:31,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-11-29 03:39:31,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=147, Invalid=405, Unknown=0, NotChecked=0, Total=552 [2023-11-29 03:39:31,723 INFO L87 Difference]: Start difference. First operand 737 states and 882 transitions. Second operand has 19 states, 18 states have (on average 4.833333333333333) internal successors, (87), 19 states have internal predecessors, (87), 6 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 6 states have call predecessors, (15), 6 states have call successors, (15) [2023-11-29 03:39:34,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:39:34,448 INFO L93 Difference]: Finished difference Result 833 states and 990 transitions. [2023-11-29 03:39:34,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2023-11-29 03:39:34,449 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 4.833333333333333) internal successors, (87), 19 states have internal predecessors, (87), 6 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 6 states have call predecessors, (15), 6 states have call successors, (15) Word has length 159 [2023-11-29 03:39:34,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:39:34,453 INFO L225 Difference]: With dead ends: 833 [2023-11-29 03:39:34,453 INFO L226 Difference]: Without dead ends: 831 [2023-11-29 03:39:34,454 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 214 GetRequests, 169 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 495 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=468, Invalid=1694, Unknown=0, NotChecked=0, Total=2162 [2023-11-29 03:39:34,454 INFO L413 NwaCegarLoop]: 74 mSDtfsCounter, 288 mSDsluCounter, 566 mSDsCounter, 0 mSdLazyCounter, 1279 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 290 SdHoareTripleChecker+Valid, 640 SdHoareTripleChecker+Invalid, 1332 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 1279 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-11-29 03:39:34,455 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [290 Valid, 640 Invalid, 1332 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 1279 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-11-29 03:39:34,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 831 states. [2023-11-29 03:39:34,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 831 to 798. [2023-11-29 03:39:34,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 798 states, 697 states have (on average 1.156384505021521) internal successors, (806), 706 states have internal predecessors, (806), 76 states have call successors, (76), 15 states have call predecessors, (76), 15 states have return successors, (76), 76 states have call predecessors, (76), 76 states have call successors, (76) [2023-11-29 03:39:34,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 798 states to 798 states and 958 transitions. [2023-11-29 03:39:34,593 INFO L78 Accepts]: Start accepts. Automaton has 798 states and 958 transitions. Word has length 159 [2023-11-29 03:39:34,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:39:34,593 INFO L495 AbstractCegarLoop]: Abstraction has 798 states and 958 transitions. [2023-11-29 03:39:34,593 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 4.833333333333333) internal successors, (87), 19 states have internal predecessors, (87), 6 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 6 states have call predecessors, (15), 6 states have call successors, (15) [2023-11-29 03:39:34,593 INFO L276 IsEmpty]: Start isEmpty. Operand 798 states and 958 transitions. [2023-11-29 03:39:34,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2023-11-29 03:39:34,594 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:39:34,594 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:39:34,599 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d9e400-6823-4842-a47a-67e380efafb5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (46)] Ended with exit code 0 [2023-11-29 03:39:34,795 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 46 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d9e400-6823-4842-a47a-67e380efafb5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable46 [2023-11-29 03:39:34,795 INFO L420 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-29 03:39:34,795 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:39:34,795 INFO L85 PathProgramCache]: Analyzing trace with hash -1092214522, now seen corresponding path program 2 times [2023-11-29 03:39:34,795 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:39:34,796 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1853981977] [2023-11-29 03:39:34,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:39:34,796 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:39:34,805 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:39:34,805 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1769854971] [2023-11-29 03:39:34,805 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 03:39:34,806 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:39:34,806 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d9e400-6823-4842-a47a-67e380efafb5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:39:34,807 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d9e400-6823-4842-a47a-67e380efafb5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:39:34,807 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d9e400-6823-4842-a47a-67e380efafb5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (47)] Waiting until timeout for monitored process [2023-11-29 03:39:34,882 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 03:39:34,882 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 03:39:34,884 INFO L262 TraceCheckSpWp]: Trace formula consists of 296 conjuncts, 38 conjunts are in the unsatisfiable core [2023-11-29 03:39:34,886 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:39:36,489 INFO L134 CoverageAnalysis]: Checked inductivity of 502 backedges. 0 proven. 82 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-11-29 03:39:36,489 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:39:37,557 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:39:37,557 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1853981977] [2023-11-29 03:39:37,557 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:39:37,557 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1769854971] [2023-11-29 03:39:37,558 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1769854971] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 03:39:37,558 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 03:39:37,558 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2023-11-29 03:39:37,558 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [938631468] [2023-11-29 03:39:37,558 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 03:39:37,558 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-11-29 03:39:37,558 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:39:37,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-11-29 03:39:37,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=158, Invalid=492, Unknown=0, NotChecked=0, Total=650 [2023-11-29 03:39:37,559 INFO L87 Difference]: Start difference. First operand 798 states and 958 transitions. Second operand has 20 states, 19 states have (on average 4.631578947368421) internal successors, (88), 20 states have internal predecessors, (88), 6 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 6 states have call predecessors, (15), 6 states have call successors, (15) [2023-11-29 03:39:39,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:39:39,538 INFO L93 Difference]: Finished difference Result 819 states and 972 transitions. [2023-11-29 03:39:39,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-11-29 03:39:39,538 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 19 states have (on average 4.631578947368421) internal successors, (88), 20 states have internal predecessors, (88), 6 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 6 states have call predecessors, (15), 6 states have call successors, (15) Word has length 160 [2023-11-29 03:39:39,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:39:39,541 INFO L225 Difference]: With dead ends: 819 [2023-11-29 03:39:39,541 INFO L226 Difference]: Without dead ends: 692 [2023-11-29 03:39:39,542 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 210 GetRequests, 169 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 310 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=346, Invalid=1460, Unknown=0, NotChecked=0, Total=1806 [2023-11-29 03:39:39,543 INFO L413 NwaCegarLoop]: 66 mSDtfsCounter, 140 mSDsluCounter, 632 mSDsCounter, 0 mSdLazyCounter, 1241 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 698 SdHoareTripleChecker+Invalid, 1255 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 1241 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-11-29 03:39:39,543 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [145 Valid, 698 Invalid, 1255 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 1241 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-11-29 03:39:39,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 692 states. [2023-11-29 03:39:39,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 692 to 689. [2023-11-29 03:39:39,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 689 states, 596 states have (on average 1.1308724832214765) internal successors, (674), 605 states have internal predecessors, (674), 68 states have call successors, (68), 15 states have call predecessors, (68), 15 states have return successors, (68), 68 states have call predecessors, (68), 68 states have call successors, (68) [2023-11-29 03:39:39,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 689 states to 689 states and 810 transitions. [2023-11-29 03:39:39,659 INFO L78 Accepts]: Start accepts. Automaton has 689 states and 810 transitions. Word has length 160 [2023-11-29 03:39:39,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:39:39,659 INFO L495 AbstractCegarLoop]: Abstraction has 689 states and 810 transitions. [2023-11-29 03:39:39,659 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 4.631578947368421) internal successors, (88), 20 states have internal predecessors, (88), 6 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 6 states have call predecessors, (15), 6 states have call successors, (15) [2023-11-29 03:39:39,659 INFO L276 IsEmpty]: Start isEmpty. Operand 689 states and 810 transitions. [2023-11-29 03:39:39,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2023-11-29 03:39:39,660 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:39:39,660 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:39:39,666 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d9e400-6823-4842-a47a-67e380efafb5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (47)] Ended with exit code 0 [2023-11-29 03:39:39,860 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 47 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d9e400-6823-4842-a47a-67e380efafb5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable47 [2023-11-29 03:39:39,861 INFO L420 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-29 03:39:39,861 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:39:39,861 INFO L85 PathProgramCache]: Analyzing trace with hash -1646130968, now seen corresponding path program 2 times [2023-11-29 03:39:39,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:39:39,861 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1480696529] [2023-11-29 03:39:39,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:39:39,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:39:39,869 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:39:39,869 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [376637187] [2023-11-29 03:39:39,869 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 03:39:39,869 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:39:39,869 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d9e400-6823-4842-a47a-67e380efafb5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:39:39,870 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d9e400-6823-4842-a47a-67e380efafb5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:39:39,871 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d9e400-6823-4842-a47a-67e380efafb5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (48)] Waiting until timeout for monitored process [2023-11-29 03:39:39,942 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 03:39:39,942 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 03:39:39,944 INFO L262 TraceCheckSpWp]: Trace formula consists of 298 conjuncts, 47 conjunts are in the unsatisfiable core [2023-11-29 03:39:39,947 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:39:41,787 INFO L134 CoverageAnalysis]: Checked inductivity of 502 backedges. 33 proven. 91 refuted. 0 times theorem prover too weak. 378 trivial. 0 not checked. [2023-11-29 03:39:41,788 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:40:36,832 WARN L293 SmtUtils]: Spent 6.80s on a formula simplification that was a NOOP. DAG size: 60 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-11-29 03:40:43,755 WARN L293 SmtUtils]: Spent 5.12s on a formula simplification that was a NOOP. DAG size: 16 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-11-29 03:42:55,126 INFO L134 CoverageAnalysis]: Checked inductivity of 502 backedges. 33 proven. 91 refuted. 0 times theorem prover too weak. 378 trivial. 0 not checked. [2023-11-29 03:42:55,127 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:42:55,127 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1480696529] [2023-11-29 03:42:55,127 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:42:55,127 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [376637187] [2023-11-29 03:42:55,127 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [376637187] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 03:42:55,127 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 03:42:55,127 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 19] total 39 [2023-11-29 03:42:55,127 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1006811853] [2023-11-29 03:42:55,128 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 03:42:55,128 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 40 states [2023-11-29 03:42:55,128 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:42:55,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2023-11-29 03:42:55,129 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=379, Invalid=1180, Unknown=1, NotChecked=0, Total=1560 [2023-11-29 03:42:55,130 INFO L87 Difference]: Start difference. First operand 689 states and 810 transitions. Second operand has 40 states, 39 states have (on average 4.666666666666667) internal successors, (182), 40 states have internal predecessors, (182), 14 states have call successors, (30), 1 states have call predecessors, (30), 2 states have return successors, (30), 12 states have call predecessors, (30), 14 states have call successors, (30) [2023-11-29 03:42:57,893 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.48s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 03:44:58,622 WARN L293 SmtUtils]: Spent 1.90m on a formula simplification. DAG size of input: 131 DAG size of output: 90 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-11-29 03:45:00,431 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.81s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 03:45:04,704 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 03:45:09,032 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 03:45:11,879 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.85s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 03:45:15,880 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 []