./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/geo2-ll_valuebound50.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 527bcce2 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_a3ada25c-94ce-42ec-a201-a7b5f4159441/bin/uautomizer-verify-bycVGegfSx/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3ada25c-94ce-42ec-a201-a7b5f4159441/bin/uautomizer-verify-bycVGegfSx/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3ada25c-94ce-42ec-a201-a7b5f4159441/bin/uautomizer-verify-bycVGegfSx/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3ada25c-94ce-42ec-a201-a7b5f4159441/bin/uautomizer-verify-bycVGegfSx/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/geo2-ll_valuebound50.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3ada25c-94ce-42ec-a201-a7b5f4159441/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3ada25c-94ce-42ec-a201-a7b5f4159441/bin/uautomizer-verify-bycVGegfSx --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 3a9f7f5292c68f3309c2932c2bff1aad6a438a7f3a7fa836f24d689e17563f58 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 22:19:11,484 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 22:19:11,562 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3ada25c-94ce-42ec-a201-a7b5f4159441/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-21 22:19:11,569 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 22:19:11,569 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 22:19:11,597 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 22:19:11,598 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 22:19:11,599 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 22:19:11,600 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-21 22:19:11,601 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-21 22:19:11,601 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 22:19:11,602 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 22:19:11,603 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 22:19:11,603 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 22:19:11,604 INFO L153 SettingsManager]: * Use SBE=true [2023-11-21 22:19:11,605 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 22:19:11,605 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 22:19:11,606 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-21 22:19:11,606 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 22:19:11,607 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-21 22:19:11,607 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 22:19:11,610 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 22:19:11,610 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 22:19:11,611 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 22:19:11,611 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-21 22:19:11,612 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-21 22:19:11,612 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-21 22:19:11,613 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 22:19:11,613 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 22:19:11,614 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 22:19:11,615 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-21 22:19:11,616 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-21 22:19:11,616 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 22:19:11,616 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:19:11,617 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 22:19:11,617 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 22:19:11,617 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 22:19:11,617 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-21 22:19:11,618 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 22:19:11,618 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 22:19:11,618 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-21 22:19:11,619 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 22:19:11,619 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-21 22:19:11,619 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 22:19:11,620 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_a3ada25c-94ce-42ec-a201-a7b5f4159441/bin/uautomizer-verify-bycVGegfSx/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3ada25c-94ce-42ec-a201-a7b5f4159441/bin/uautomizer-verify-bycVGegfSx Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3a9f7f5292c68f3309c2932c2bff1aad6a438a7f3a7fa836f24d689e17563f58 [2023-11-21 22:19:12,003 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 22:19:12,042 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 22:19:12,045 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 22:19:12,046 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 22:19:12,047 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 22:19:12,048 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3ada25c-94ce-42ec-a201-a7b5f4159441/bin/uautomizer-verify-bycVGegfSx/../../sv-benchmarks/c/nla-digbench-scaling/geo2-ll_valuebound50.c [2023-11-21 22:19:15,286 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 22:19:15,515 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 22:19:15,515 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3ada25c-94ce-42ec-a201-a7b5f4159441/sv-benchmarks/c/nla-digbench-scaling/geo2-ll_valuebound50.c [2023-11-21 22:19:15,524 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3ada25c-94ce-42ec-a201-a7b5f4159441/bin/uautomizer-verify-bycVGegfSx/data/7bfacd8a3/c90729b84c0241e09818fc19e88ec118/FLAGbdb4d97f3 [2023-11-21 22:19:15,538 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3ada25c-94ce-42ec-a201-a7b5f4159441/bin/uautomizer-verify-bycVGegfSx/data/7bfacd8a3/c90729b84c0241e09818fc19e88ec118 [2023-11-21 22:19:15,541 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 22:19:15,542 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 22:19:15,544 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 22:19:15,544 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 22:19:15,550 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 22:19:15,551 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:19:15" (1/1) ... [2023-11-21 22:19:15,552 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f822f46 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:19:15, skipping insertion in model container [2023-11-21 22:19:15,552 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:19:15" (1/1) ... [2023-11-21 22:19:15,574 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 22:19:15,743 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:19:15,754 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 22:19:15,774 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:19:15,789 INFO L206 MainTranslator]: Completed translation [2023-11-21 22:19:15,790 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:19:15 WrapperNode [2023-11-21 22:19:15,790 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 22:19:15,791 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 22:19:15,791 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 22:19:15,791 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 22:19:15,799 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:19:15" (1/1) ... [2023-11-21 22:19:15,806 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:19:15" (1/1) ... [2023-11-21 22:19:15,829 INFO L138 Inliner]: procedures = 14, calls = 12, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 74 [2023-11-21 22:19:15,830 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 22:19:15,831 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 22:19:15,831 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 22:19:15,831 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 22:19:15,843 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:19:15" (1/1) ... [2023-11-21 22:19:15,844 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:19:15" (1/1) ... [2023-11-21 22:19:15,845 INFO L184 PluginConnector]: Executing the observer HeapSplitter from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:19:15" (1/1) ... [2023-11-21 22:19:15,855 INFO L187 HeapSplitter]: Split 2 memory accesses to 1 slices as follows [2] [2023-11-21 22:19:15,856 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:19:15" (1/1) ... [2023-11-21 22:19:15,856 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:19:15" (1/1) ... [2023-11-21 22:19:15,860 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:19:15" (1/1) ... [2023-11-21 22:19:15,863 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:19:15" (1/1) ... [2023-11-21 22:19:15,865 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:19:15" (1/1) ... [2023-11-21 22:19:15,866 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:19:15" (1/1) ... [2023-11-21 22:19:15,868 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 22:19:15,869 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 22:19:15,869 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 22:19:15,869 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 22:19:15,870 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:19:15" (1/1) ... [2023-11-21 22:19:15,877 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:19:15,893 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3ada25c-94ce-42ec-a201-a7b5f4159441/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:19:15,910 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3ada25c-94ce-42ec-a201-a7b5f4159441/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-21 22:19:15,935 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3ada25c-94ce-42ec-a201-a7b5f4159441/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-21 22:19:15,960 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 22:19:15,960 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-21 22:19:15,960 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-21 22:19:15,961 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-21 22:19:15,961 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 22:19:15,961 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 22:19:15,961 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-21 22:19:15,961 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-21 22:19:16,035 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 22:19:16,040 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 22:19:16,427 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 22:19:16,475 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 22:19:16,475 INFO L308 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-21 22:19:16,477 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:19:16 BoogieIcfgContainer [2023-11-21 22:19:16,477 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 22:19:16,480 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-21 22:19:16,480 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-21 22:19:16,484 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-21 22:19:16,484 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 10:19:15" (1/3) ... [2023-11-21 22:19:16,485 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54332dba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:19:16, skipping insertion in model container [2023-11-21 22:19:16,485 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:19:15" (2/3) ... [2023-11-21 22:19:16,486 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54332dba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:19:16, skipping insertion in model container [2023-11-21 22:19:16,486 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:19:16" (3/3) ... [2023-11-21 22:19:16,488 INFO L112 eAbstractionObserver]: Analyzing ICFG geo2-ll_valuebound50.c [2023-11-21 22:19:16,508 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-21 22:19:16,508 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 28 error locations. [2023-11-21 22:19:16,561 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-21 22:19:16,569 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;@118429c6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 22:19:16,569 INFO L358 AbstractCegarLoop]: Starting to check reachability of 28 error locations. [2023-11-21 22:19:16,574 INFO L276 IsEmpty]: Start isEmpty. Operand has 71 states, 36 states have (on average 1.8333333333333333) internal successors, (66), 64 states have internal predecessors, (66), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-21 22:19:16,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-21 22:19:16,582 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:19:16,583 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:19:16,584 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-21 22:19:16,589 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:19:16,590 INFO L85 PathProgramCache]: Analyzing trace with hash 587997184, now seen corresponding path program 1 times [2023-11-21 22:19:16,600 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:19:16,600 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1952922224] [2023-11-21 22:19:16,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:19:16,601 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:19:16,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:19:16,750 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:19:16,750 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1952922224] [2023-11-21 22:19:16,751 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-11-21 22:19:16,751 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [736006852] [2023-11-21 22:19:16,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:19:16,752 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:19:16,752 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3ada25c-94ce-42ec-a201-a7b5f4159441/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:19:16,754 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3ada25c-94ce-42ec-a201-a7b5f4159441/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 22:19:16,755 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3ada25c-94ce-42ec-a201-a7b5f4159441/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-21 22:19:16,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:19:16,872 INFO L262 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-21 22:19:16,877 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:19:16,900 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-21 22:19:16,900 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 22:19:16,901 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [736006852] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:19:16,901 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:19:16,901 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:19:16,903 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [633991472] [2023-11-21 22:19:16,904 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:19:16,908 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-21 22:19:16,908 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:19:16,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-21 22:19:16,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-21 22:19:16,949 INFO L87 Difference]: Start difference. First operand has 71 states, 36 states have (on average 1.8333333333333333) internal successors, (66), 64 states have internal predecessors, (66), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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) [2023-11-21 22:19:17,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:19:17,010 INFO L93 Difference]: Finished difference Result 96 states and 98 transitions. [2023-11-21 22:19:17,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-21 22:19:17,015 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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 11 [2023-11-21 22:19:17,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:19:17,025 INFO L225 Difference]: With dead ends: 96 [2023-11-21 22:19:17,025 INFO L226 Difference]: Without dead ends: 68 [2023-11-21 22:19:17,031 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-21 22:19:17,039 INFO L413 NwaCegarLoop]: 69 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 69 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-21 22:19:17,041 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 69 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-21 22:19:17,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2023-11-21 22:19:17,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2023-11-21 22:19:17,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 35 states have (on average 1.8) internal successors, (63), 62 states have internal predecessors, (63), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-21 22:19:17,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 69 transitions. [2023-11-21 22:19:17,100 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 69 transitions. Word has length 11 [2023-11-21 22:19:17,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:19:17,102 INFO L495 AbstractCegarLoop]: Abstraction has 68 states and 69 transitions. [2023-11-21 22:19:17,103 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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) [2023-11-21 22:19:17,103 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 69 transitions. [2023-11-21 22:19:17,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-21 22:19:17,104 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:19:17,106 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:19:17,131 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3ada25c-94ce-42ec-a201-a7b5f4159441/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-21 22:19:17,320 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3ada25c-94ce-42ec-a201-a7b5f4159441/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-11-21 22:19:17,320 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)] === [2023-11-21 22:19:17,321 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:19:17,321 INFO L85 PathProgramCache]: Analyzing trace with hash 587993729, now seen corresponding path program 1 times [2023-11-21 22:19:17,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:19:17,322 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1768874465] [2023-11-21 22:19:17,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:19:17,322 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:19:17,352 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-21 22:19:17,353 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [787853235] [2023-11-21 22:19:17,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:19:17,353 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:19:17,353 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3ada25c-94ce-42ec-a201-a7b5f4159441/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:19:17,369 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3ada25c-94ce-42ec-a201-a7b5f4159441/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 22:19:17,384 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3ada25c-94ce-42ec-a201-a7b5f4159441/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-21 22:19:17,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:19:17,431 INFO L262 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-21 22:19:17,433 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:19:17,503 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-21 22:19:17,504 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 22:19:17,504 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:19:17,504 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1768874465] [2023-11-21 22:19:17,504 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-21 22:19:17,505 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [787853235] [2023-11-21 22:19:17,505 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [787853235] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:19:17,505 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:19:17,505 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-21 22:19:17,506 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1105959959] [2023-11-21 22:19:17,506 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:19:17,507 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-21 22:19:17,507 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:19:17,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-21 22:19:17,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-21 22:19:17,509 INFO L87 Difference]: Start difference. First operand 68 states and 69 transitions. Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 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) [2023-11-21 22:19:17,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:19:17,959 INFO L93 Difference]: Finished difference Result 123 states and 125 transitions. [2023-11-21 22:19:17,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-21 22:19:17,960 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 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 11 [2023-11-21 22:19:17,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:19:17,962 INFO L225 Difference]: With dead ends: 123 [2023-11-21 22:19:17,962 INFO L226 Difference]: Without dead ends: 115 [2023-11-21 22:19:17,963 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-21 22:19:17,966 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 103 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 113 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 29 SdHoareTripleChecker+Invalid, 120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-21 22:19:17,969 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [105 Valid, 29 Invalid, 120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 113 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-21 22:19:17,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2023-11-21 22:19:17,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 91. [2023-11-21 22:19:17,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 57 states have (on average 1.719298245614035) internal successors, (98), 84 states have internal predecessors, (98), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-21 22:19:17,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 106 transitions. [2023-11-21 22:19:17,999 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 106 transitions. Word has length 11 [2023-11-21 22:19:18,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:19:18,001 INFO L495 AbstractCegarLoop]: Abstraction has 91 states and 106 transitions. [2023-11-21 22:19:18,002 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 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) [2023-11-21 22:19:18,002 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 106 transitions. [2023-11-21 22:19:18,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-21 22:19:18,003 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:19:18,003 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:19:18,022 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3ada25c-94ce-42ec-a201-a7b5f4159441/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-21 22:19:18,216 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3ada25c-94ce-42ec-a201-a7b5f4159441/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2023-11-21 22:19:18,217 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-21 22:19:18,217 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:19:18,217 INFO L85 PathProgramCache]: Analyzing trace with hash 1047936464, now seen corresponding path program 1 times [2023-11-21 22:19:18,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:19:18,218 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [186078492] [2023-11-21 22:19:18,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:19:18,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:19:18,237 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-21 22:19:18,240 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [654663497] [2023-11-21 22:19:18,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:19:18,241 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:19:18,244 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3ada25c-94ce-42ec-a201-a7b5f4159441/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:19:18,246 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3ada25c-94ce-42ec-a201-a7b5f4159441/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 22:19:18,264 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3ada25c-94ce-42ec-a201-a7b5f4159441/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-21 22:19:18,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:19:18,288 INFO L262 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-21 22:19:18,290 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:19:18,355 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-21 22:19:18,356 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 22:19:18,356 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:19:18,356 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [186078492] [2023-11-21 22:19:18,356 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-21 22:19:18,357 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [654663497] [2023-11-21 22:19:18,357 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [654663497] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:19:18,357 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:19:18,357 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-21 22:19:18,357 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2127913490] [2023-11-21 22:19:18,358 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:19:18,358 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-21 22:19:18,360 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:19:18,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-21 22:19:18,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-21 22:19:18,363 INFO L87 Difference]: Start difference. First operand 91 states and 106 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 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) [2023-11-21 22:19:18,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:19:18,668 INFO L93 Difference]: Finished difference Result 115 states and 117 transitions. [2023-11-21 22:19:18,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-21 22:19:18,669 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 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 12 [2023-11-21 22:19:18,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:19:18,671 INFO L225 Difference]: With dead ends: 115 [2023-11-21 22:19:18,671 INFO L226 Difference]: Without dead ends: 107 [2023-11-21 22:19:18,672 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-21 22:19:18,673 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 94 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 113 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 29 SdHoareTripleChecker+Invalid, 120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-21 22:19:18,674 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 29 Invalid, 120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 113 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-21 22:19:18,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2023-11-21 22:19:18,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 93. [2023-11-21 22:19:18,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 59 states have (on average 1.5932203389830508) internal successors, (94), 86 states have internal predecessors, (94), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-21 22:19:18,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 102 transitions. [2023-11-21 22:19:18,695 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 102 transitions. Word has length 12 [2023-11-21 22:19:18,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:19:18,696 INFO L495 AbstractCegarLoop]: Abstraction has 93 states and 102 transitions. [2023-11-21 22:19:18,696 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 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) [2023-11-21 22:19:18,696 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 102 transitions. [2023-11-21 22:19:18,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-11-21 22:19:18,697 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:19:18,697 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:19:18,712 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3ada25c-94ce-42ec-a201-a7b5f4159441/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-21 22:19:18,900 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3ada25c-94ce-42ec-a201-a7b5f4159441/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:19:18,901 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-21 22:19:18,901 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:19:18,901 INFO L85 PathProgramCache]: Analyzing trace with hash -658538457, now seen corresponding path program 1 times [2023-11-21 22:19:18,901 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:19:18,902 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [169934484] [2023-11-21 22:19:18,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:19:18,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:19:18,926 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-21 22:19:18,929 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [542929878] [2023-11-21 22:19:18,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:19:18,930 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:19:18,930 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3ada25c-94ce-42ec-a201-a7b5f4159441/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:19:18,931 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3ada25c-94ce-42ec-a201-a7b5f4159441/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 22:19:18,938 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3ada25c-94ce-42ec-a201-a7b5f4159441/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-21 22:19:18,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:19:18,982 INFO L262 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-21 22:19:18,984 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:19:19,049 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-21 22:19:19,049 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 22:19:19,050 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:19:19,050 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [169934484] [2023-11-21 22:19:19,050 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-21 22:19:19,050 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [542929878] [2023-11-21 22:19:19,051 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [542929878] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:19:19,051 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:19:19,051 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-21 22:19:19,051 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [296876052] [2023-11-21 22:19:19,051 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:19:19,052 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-21 22:19:19,052 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:19:19,053 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-21 22:19:19,053 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-21 22:19:19,053 INFO L87 Difference]: Start difference. First operand 93 states and 102 transitions. Second operand has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 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) [2023-11-21 22:19:19,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:19:19,387 INFO L93 Difference]: Finished difference Result 111 states and 113 transitions. [2023-11-21 22:19:19,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-21 22:19:19,388 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 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 17 [2023-11-21 22:19:19,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:19:19,389 INFO L225 Difference]: With dead ends: 111 [2023-11-21 22:19:19,390 INFO L226 Difference]: Without dead ends: 108 [2023-11-21 22:19:19,390 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-21 22:19:19,391 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 90 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 113 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 29 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-21 22:19:19,392 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 29 Invalid, 115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 113 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-21 22:19:19,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2023-11-21 22:19:19,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 95. [2023-11-21 22:19:19,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95 states, 61 states have (on average 1.5573770491803278) internal successors, (95), 88 states have internal predecessors, (95), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-21 22:19:19,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 103 transitions. [2023-11-21 22:19:19,403 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 103 transitions. Word has length 17 [2023-11-21 22:19:19,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:19:19,404 INFO L495 AbstractCegarLoop]: Abstraction has 95 states and 103 transitions. [2023-11-21 22:19:19,404 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 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) [2023-11-21 22:19:19,404 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 103 transitions. [2023-11-21 22:19:19,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-11-21 22:19:19,405 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:19:19,405 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:19:19,422 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3ada25c-94ce-42ec-a201-a7b5f4159441/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-21 22:19:19,616 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3ada25c-94ce-42ec-a201-a7b5f4159441/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:19:19,616 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-21 22:19:19,617 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:19:19,617 INFO L85 PathProgramCache]: Analyzing trace with hash 1060144374, now seen corresponding path program 1 times [2023-11-21 22:19:19,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:19:19,617 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [776728977] [2023-11-21 22:19:19,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:19:19,618 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:19:19,632 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-21 22:19:19,633 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1422839828] [2023-11-21 22:19:19,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:19:19,633 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:19:19,633 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3ada25c-94ce-42ec-a201-a7b5f4159441/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:19:19,641 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3ada25c-94ce-42ec-a201-a7b5f4159441/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 22:19:19,647 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3ada25c-94ce-42ec-a201-a7b5f4159441/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-21 22:19:19,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:19:19,694 INFO L262 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-21 22:19:19,697 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:19:19,775 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-21 22:19:19,775 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 22:19:19,775 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:19:19,775 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [776728977] [2023-11-21 22:19:19,776 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-21 22:19:19,776 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1422839828] [2023-11-21 22:19:19,776 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1422839828] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:19:19,776 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:19:19,776 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-21 22:19:19,776 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1065313922] [2023-11-21 22:19:19,777 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:19:19,777 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-21 22:19:19,777 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:19:19,778 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-21 22:19:19,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-21 22:19:19,778 INFO L87 Difference]: Start difference. First operand 95 states and 103 transitions. Second operand has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 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) [2023-11-21 22:19:19,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:19:19,934 INFO L93 Difference]: Finished difference Result 108 states and 110 transitions. [2023-11-21 22:19:19,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-21 22:19:19,935 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 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 [2023-11-21 22:19:19,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:19:19,936 INFO L225 Difference]: With dead ends: 108 [2023-11-21 22:19:19,936 INFO L226 Difference]: Without dead ends: 105 [2023-11-21 22:19:19,937 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-21 22:19:19,938 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 86 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 113 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 29 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-21 22:19:19,938 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [88 Valid, 29 Invalid, 115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 113 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-21 22:19:19,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2023-11-21 22:19:19,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 97. [2023-11-21 22:19:19,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 63 states have (on average 1.5238095238095237) internal successors, (96), 90 states have internal predecessors, (96), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-21 22:19:19,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 104 transitions. [2023-11-21 22:19:19,948 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 104 transitions. Word has length 18 [2023-11-21 22:19:19,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:19:19,949 INFO L495 AbstractCegarLoop]: Abstraction has 97 states and 104 transitions. [2023-11-21 22:19:19,949 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 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) [2023-11-21 22:19:19,949 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 104 transitions. [2023-11-21 22:19:19,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-11-21 22:19:19,950 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:19:19,950 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:19:19,979 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3ada25c-94ce-42ec-a201-a7b5f4159441/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-21 22:19:20,152 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3ada25c-94ce-42ec-a201-a7b5f4159441/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:19:20,153 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-21 22:19:20,153 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:19:20,153 INFO L85 PathProgramCache]: Analyzing trace with hash -1495262711, now seen corresponding path program 1 times [2023-11-21 22:19:20,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:19:20,153 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1591513941] [2023-11-21 22:19:20,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:19:20,154 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:19:20,178 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-21 22:19:20,179 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2076944904] [2023-11-21 22:19:20,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:19:20,179 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:19:20,179 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3ada25c-94ce-42ec-a201-a7b5f4159441/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:19:20,182 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3ada25c-94ce-42ec-a201-a7b5f4159441/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 22:19:20,188 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3ada25c-94ce-42ec-a201-a7b5f4159441/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-21 22:19:20,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:19:20,225 INFO L262 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-21 22:19:20,227 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:19:20,278 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-21 22:19:20,279 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 22:19:20,279 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:19:20,279 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1591513941] [2023-11-21 22:19:20,279 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-21 22:19:20,279 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2076944904] [2023-11-21 22:19:20,279 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2076944904] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:19:20,280 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:19:20,280 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:19:20,280 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1122503955] [2023-11-21 22:19:20,280 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:19:20,280 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:19:20,281 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:19:20,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:19:20,281 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:19:20,282 INFO L87 Difference]: Start difference. First operand 97 states and 104 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, (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) [2023-11-21 22:19:20,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:19:20,384 INFO L93 Difference]: Finished difference Result 105 states and 107 transitions. [2023-11-21 22:19:20,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:19:20,384 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, (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 19 [2023-11-21 22:19:20,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:19:20,385 INFO L225 Difference]: With dead ends: 105 [2023-11-21 22:19:20,385 INFO L226 Difference]: Without dead ends: 91 [2023-11-21 22:19:20,386 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:19:20,387 INFO L413 NwaCegarLoop]: 43 mSDtfsCounter, 20 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 57 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-21 22:19:20,387 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 57 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-21 22:19:20,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2023-11-21 22:19:20,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 89. [2023-11-21 22:19:20,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89 states, 55 states have (on average 1.5454545454545454) internal successors, (85), 82 states have internal predecessors, (85), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-21 22:19:20,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 93 transitions. [2023-11-21 22:19:20,396 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 93 transitions. Word has length 19 [2023-11-21 22:19:20,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:19:20,397 INFO L495 AbstractCegarLoop]: Abstraction has 89 states and 93 transitions. [2023-11-21 22:19:20,397 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, (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) [2023-11-21 22:19:20,397 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 93 transitions. [2023-11-21 22:19:20,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-11-21 22:19:20,398 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:19:20,398 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:19:20,425 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3ada25c-94ce-42ec-a201-a7b5f4159441/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-11-21 22:19:20,620 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3ada25c-94ce-42ec-a201-a7b5f4159441/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:19:20,620 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-21 22:19:20,621 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:19:20,621 INFO L85 PathProgramCache]: Analyzing trace with hash -1276861047, now seen corresponding path program 1 times [2023-11-21 22:19:20,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:19:20,621 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [363530177] [2023-11-21 22:19:20,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:19:20,622 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:19:20,633 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-21 22:19:20,634 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1081780252] [2023-11-21 22:19:20,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:19:20,634 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:19:20,634 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3ada25c-94ce-42ec-a201-a7b5f4159441/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:19:20,636 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3ada25c-94ce-42ec-a201-a7b5f4159441/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 22:19:20,638 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3ada25c-94ce-42ec-a201-a7b5f4159441/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-21 22:19:20,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:19:20,679 INFO L262 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-21 22:19:20,680 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:19:20,706 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-21 22:19:20,706 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 22:19:20,706 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:19:20,706 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [363530177] [2023-11-21 22:19:20,706 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-21 22:19:20,707 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1081780252] [2023-11-21 22:19:20,707 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1081780252] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:19:20,707 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:19:20,707 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:19:20,707 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [889753063] [2023-11-21 22:19:20,707 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:19:20,708 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:19:20,708 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:19:20,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:19:20,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:19:20,709 INFO L87 Difference]: Start difference. First operand 89 states and 93 transitions. Second operand has 3 states, 2 states have (on average 9.0) internal successors, (18), 3 states have internal predecessors, (18), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-21 22:19:20,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:19:20,724 INFO L93 Difference]: Finished difference Result 89 states and 93 transitions. [2023-11-21 22:19:20,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:19:20,724 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 9.0) internal successors, (18), 3 states have internal predecessors, (18), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 25 [2023-11-21 22:19:20,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:19:20,725 INFO L225 Difference]: With dead ends: 89 [2023-11-21 22:19:20,726 INFO L226 Difference]: Without dead ends: 88 [2023-11-21 22:19:20,726 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:19:20,727 INFO L413 NwaCegarLoop]: 60 mSDtfsCounter, 44 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 66 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-21 22:19:20,727 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 66 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-21 22:19:20,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2023-11-21 22:19:20,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 88. [2023-11-21 22:19:20,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 55 states have (on average 1.509090909090909) internal successors, (83), 81 states have internal predecessors, (83), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-21 22:19:20,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 91 transitions. [2023-11-21 22:19:20,736 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 91 transitions. Word has length 25 [2023-11-21 22:19:20,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:19:20,736 INFO L495 AbstractCegarLoop]: Abstraction has 88 states and 91 transitions. [2023-11-21 22:19:20,737 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 9.0) internal successors, (18), 3 states have internal predecessors, (18), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-21 22:19:20,737 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 91 transitions. [2023-11-21 22:19:20,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-11-21 22:19:20,738 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:19:20,738 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-11-21 22:19:20,765 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3ada25c-94ce-42ec-a201-a7b5f4159441/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-11-21 22:19:20,958 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3ada25c-94ce-42ec-a201-a7b5f4159441/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2023-11-21 22:19:20,959 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-21 22:19:20,959 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:19:20,959 INFO L85 PathProgramCache]: Analyzing trace with hash -927986718, now seen corresponding path program 1 times [2023-11-21 22:19:20,959 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:19:20,959 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1942076045] [2023-11-21 22:19:20,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:19:20,959 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:19:20,971 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-21 22:19:20,971 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [606817813] [2023-11-21 22:19:20,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:19:20,972 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:19:20,974 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3ada25c-94ce-42ec-a201-a7b5f4159441/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:19:20,975 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3ada25c-94ce-42ec-a201-a7b5f4159441/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 22:19:20,983 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3ada25c-94ce-42ec-a201-a7b5f4159441/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-21 22:19:21,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:19:21,031 INFO L262 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-21 22:19:21,032 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:19:21,066 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-21 22:19:21,067 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 22:19:21,067 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:19:21,067 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1942076045] [2023-11-21 22:19:21,067 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-21 22:19:21,067 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [606817813] [2023-11-21 22:19:21,068 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [606817813] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:19:21,068 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:19:21,068 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:19:21,068 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1431027971] [2023-11-21 22:19:21,068 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:19:21,069 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:19:21,069 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:19:21,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:19:21,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:19:21,072 INFO L87 Difference]: Start difference. First operand 88 states and 91 transitions. Second operand has 3 states, 2 states have (on average 9.5) internal successors, (19), 3 states have internal predecessors, (19), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-21 22:19:21,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:19:21,090 INFO L93 Difference]: Finished difference Result 89 states and 91 transitions. [2023-11-21 22:19:21,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:19:21,091 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 9.5) internal successors, (19), 3 states have internal predecessors, (19), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 26 [2023-11-21 22:19:21,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:19:21,092 INFO L225 Difference]: With dead ends: 89 [2023-11-21 22:19:21,092 INFO L226 Difference]: Without dead ends: 88 [2023-11-21 22:19:21,092 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 [2023-11-21 22:19:21,095 INFO L413 NwaCegarLoop]: 62 mSDtfsCounter, 0 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 121 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-21 22:19:21,096 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 121 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-21 22:19:21,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2023-11-21 22:19:21,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 88. [2023-11-21 22:19:21,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 55 states have (on average 1.490909090909091) internal successors, (82), 81 states have internal predecessors, (82), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-21 22:19:21,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 90 transitions. [2023-11-21 22:19:21,121 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 90 transitions. Word has length 26 [2023-11-21 22:19:21,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:19:21,124 INFO L495 AbstractCegarLoop]: Abstraction has 88 states and 90 transitions. [2023-11-21 22:19:21,124 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 9.5) internal successors, (19), 3 states have internal predecessors, (19), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-21 22:19:21,125 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 90 transitions. [2023-11-21 22:19:21,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2023-11-21 22:19:21,126 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:19:21,126 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-11-21 22:19:21,151 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3ada25c-94ce-42ec-a201-a7b5f4159441/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-11-21 22:19:21,327 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3ada25c-94ce-42ec-a201-a7b5f4159441/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:19:21,327 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-21 22:19:21,327 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:19:21,327 INFO L85 PathProgramCache]: Analyzing trace with hash 244837098, now seen corresponding path program 1 times [2023-11-21 22:19:21,328 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:19:21,328 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [82752037] [2023-11-21 22:19:21,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:19:21,328 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:19:21,340 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-21 22:19:21,340 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [171513057] [2023-11-21 22:19:21,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:19:21,340 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:19:21,340 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3ada25c-94ce-42ec-a201-a7b5f4159441/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:19:21,341 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3ada25c-94ce-42ec-a201-a7b5f4159441/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 22:19:21,349 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3ada25c-94ce-42ec-a201-a7b5f4159441/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-21 22:19:21,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:19:21,395 INFO L262 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-21 22:19:21,397 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:19:21,623 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-21 22:19:21,624 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-21 22:19:21,860 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:19:21,860 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [82752037] [2023-11-21 22:19:21,860 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-21 22:19:21,860 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [171513057] [2023-11-21 22:19:21,861 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [171513057] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-21 22:19:21,861 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-21 22:19:21,861 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2023-11-21 22:19:21,861 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1639583580] [2023-11-21 22:19:21,861 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-21 22:19:21,862 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-21 22:19:21,862 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:19:21,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-21 22:19:21,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2023-11-21 22:19:21,863 INFO L87 Difference]: Start difference. First operand 88 states and 90 transitions. Second operand has 6 states, 4 states have (on average 7.0) internal successors, (28), 6 states have internal predecessors, (28), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-21 22:19:22,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:19:22,062 INFO L93 Difference]: Finished difference Result 88 states and 90 transitions. [2023-11-21 22:19:22,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-21 22:19:22,063 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 4 states have (on average 7.0) internal successors, (28), 6 states have internal predecessors, (28), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) Word has length 34 [2023-11-21 22:19:22,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:19:22,064 INFO L225 Difference]: With dead ends: 88 [2023-11-21 22:19:22,064 INFO L226 Difference]: Without dead ends: 82 [2023-11-21 22:19:22,064 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2023-11-21 22:19:22,065 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 47 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 201 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 54 SdHoareTripleChecker+Invalid, 207 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 201 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-21 22:19:22,065 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 54 Invalid, 207 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 201 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-21 22:19:22,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2023-11-21 22:19:22,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 82. [2023-11-21 22:19:22,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82 states, 55 states have (on average 1.3818181818181818) internal successors, (76), 75 states have internal predecessors, (76), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-21 22:19:22,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 84 transitions. [2023-11-21 22:19:22,073 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 84 transitions. Word has length 34 [2023-11-21 22:19:22,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:19:22,074 INFO L495 AbstractCegarLoop]: Abstraction has 82 states and 84 transitions. [2023-11-21 22:19:22,074 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 4 states have (on average 7.0) internal successors, (28), 6 states have internal predecessors, (28), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-21 22:19:22,074 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 84 transitions. [2023-11-21 22:19:22,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2023-11-21 22:19:22,075 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:19:22,076 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-11-21 22:19:22,101 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3ada25c-94ce-42ec-a201-a7b5f4159441/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2023-11-21 22:19:22,296 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3ada25c-94ce-42ec-a201-a7b5f4159441/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:19:22,296 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-21 22:19:22,297 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:19:22,297 INFO L85 PathProgramCache]: Analyzing trace with hash -999984505, now seen corresponding path program 1 times [2023-11-21 22:19:22,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:19:22,297 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [762229033] [2023-11-21 22:19:22,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:19:22,298 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:19:22,310 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-21 22:19:22,310 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1367527184] [2023-11-21 22:19:22,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:19:22,310 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:19:22,310 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3ada25c-94ce-42ec-a201-a7b5f4159441/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:19:22,311 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3ada25c-94ce-42ec-a201-a7b5f4159441/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 22:19:22,328 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3ada25c-94ce-42ec-a201-a7b5f4159441/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-11-21 22:19:22,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:19:22,370 INFO L262 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-21 22:19:22,374 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:19:22,567 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-21 22:19:22,567 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-21 22:19:22,718 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:19:22,718 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [762229033] [2023-11-21 22:19:22,718 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-21 22:19:22,718 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1367527184] [2023-11-21 22:19:22,718 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1367527184] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-21 22:19:22,719 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-21 22:19:22,719 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2023-11-21 22:19:22,719 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [111948158] [2023-11-21 22:19:22,719 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-21 22:19:22,720 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-21 22:19:22,720 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:19:22,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-21 22:19:22,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2023-11-21 22:19:22,721 INFO L87 Difference]: Start difference. First operand 82 states and 84 transitions. Second operand has 6 states, 4 states have (on average 7.25) internal successors, (29), 6 states have internal predecessors, (29), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-21 22:19:23,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:19:23,125 INFO L93 Difference]: Finished difference Result 130 states and 133 transitions. [2023-11-21 22:19:23,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-21 22:19:23,125 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 4 states have (on average 7.25) internal successors, (29), 6 states have internal predecessors, (29), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) Word has length 35 [2023-11-21 22:19:23,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:19:23,127 INFO L225 Difference]: With dead ends: 130 [2023-11-21 22:19:23,127 INFO L226 Difference]: Without dead ends: 124 [2023-11-21 22:19:23,127 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2023-11-21 22:19:23,128 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 128 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 200 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 206 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 200 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-21 22:19:23,128 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [130 Valid, 39 Invalid, 206 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 200 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-21 22:19:23,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2023-11-21 22:19:23,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 105. [2023-11-21 22:19:23,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 77 states have (on average 1.3766233766233766) internal successors, (106), 97 states have internal predecessors, (106), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-21 22:19:23,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 116 transitions. [2023-11-21 22:19:23,137 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 116 transitions. Word has length 35 [2023-11-21 22:19:23,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:19:23,138 INFO L495 AbstractCegarLoop]: Abstraction has 105 states and 116 transitions. [2023-11-21 22:19:23,138 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 4 states have (on average 7.25) internal successors, (29), 6 states have internal predecessors, (29), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-21 22:19:23,138 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 116 transitions. [2023-11-21 22:19:23,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2023-11-21 22:19:23,139 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:19:23,139 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:19:23,166 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3ada25c-94ce-42ec-a201-a7b5f4159441/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-11-21 22:19:23,352 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3ada25c-94ce-42ec-a201-a7b5f4159441/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-11-21 22:19:23,353 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-21 22:19:23,353 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:19:23,353 INFO L85 PathProgramCache]: Analyzing trace with hash -645172690, now seen corresponding path program 1 times [2023-11-21 22:19:23,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:19:23,354 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1061233835] [2023-11-21 22:19:23,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:19:23,354 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:19:23,365 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-21 22:19:23,366 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [346345387] [2023-11-21 22:19:23,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:19:23,366 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:19:23,366 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3ada25c-94ce-42ec-a201-a7b5f4159441/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:19:23,367 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3ada25c-94ce-42ec-a201-a7b5f4159441/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 22:19:23,376 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3ada25c-94ce-42ec-a201-a7b5f4159441/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-11-21 22:19:23,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:19:23,424 INFO L262 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-21 22:19:23,426 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:19:23,658 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-21 22:19:23,658 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-21 22:19:24,368 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-21 22:19:24,369 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:19:24,369 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1061233835] [2023-11-21 22:19:24,369 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-21 22:19:24,369 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [346345387] [2023-11-21 22:19:24,370 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [346345387] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-21 22:19:24,370 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-21 22:19:24,370 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4] total 8 [2023-11-21 22:19:24,370 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1422902061] [2023-11-21 22:19:24,370 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-21 22:19:24,371 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-21 22:19:24,371 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:19:24,372 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-21 22:19:24,372 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2023-11-21 22:19:24,372 INFO L87 Difference]: Start difference. First operand 105 states and 116 transitions. Second operand has 9 states, 7 states have (on average 8.571428571428571) internal successors, (60), 9 states have internal predecessors, (60), 4 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) [2023-11-21 22:19:25,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:19:25,311 INFO L93 Difference]: Finished difference Result 128 states and 133 transitions. [2023-11-21 22:19:25,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-21 22:19:25,311 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 8.571428571428571) internal successors, (60), 9 states have internal predecessors, (60), 4 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) Word has length 38 [2023-11-21 22:19:25,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:19:25,313 INFO L225 Difference]: With dead ends: 128 [2023-11-21 22:19:25,313 INFO L226 Difference]: Without dead ends: 124 [2023-11-21 22:19:25,313 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2023-11-21 22:19:25,314 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 236 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 231 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 237 SdHoareTripleChecker+Valid, 60 SdHoareTripleChecker+Invalid, 241 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 231 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-21 22:19:25,315 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [237 Valid, 60 Invalid, 241 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 231 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-21 22:19:25,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2023-11-21 22:19:25,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 105. [2023-11-21 22:19:25,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 79 states have (on average 1.3164556962025316) internal successors, (104), 97 states have internal predecessors, (104), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-21 22:19:25,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 114 transitions. [2023-11-21 22:19:25,323 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 114 transitions. Word has length 38 [2023-11-21 22:19:25,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:19:25,323 INFO L495 AbstractCegarLoop]: Abstraction has 105 states and 114 transitions. [2023-11-21 22:19:25,324 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 8.571428571428571) internal successors, (60), 9 states have internal predecessors, (60), 4 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) [2023-11-21 22:19:25,324 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 114 transitions. [2023-11-21 22:19:25,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2023-11-21 22:19:25,325 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:19:25,325 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-11-21 22:19:25,346 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3ada25c-94ce-42ec-a201-a7b5f4159441/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2023-11-21 22:19:25,545 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3ada25c-94ce-42ec-a201-a7b5f4159441/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:19:25,545 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-21 22:19:25,546 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:19:25,546 INFO L85 PathProgramCache]: Analyzing trace with hash -1535662640, now seen corresponding path program 1 times [2023-11-21 22:19:25,546 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:19:25,546 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [739686033] [2023-11-21 22:19:25,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:19:25,546 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:19:25,557 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-21 22:19:25,557 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [532761421] [2023-11-21 22:19:25,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:19:25,558 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:19:25,558 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3ada25c-94ce-42ec-a201-a7b5f4159441/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:19:25,559 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3ada25c-94ce-42ec-a201-a7b5f4159441/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 22:19:25,572 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3ada25c-94ce-42ec-a201-a7b5f4159441/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-11-21 22:19:25,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:19:25,611 INFO L262 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-21 22:19:25,613 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:19:25,825 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-21 22:19:25,825 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-21 22:19:25,969 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:19:25,969 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [739686033] [2023-11-21 22:19:25,970 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-21 22:19:25,970 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [532761421] [2023-11-21 22:19:25,970 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [532761421] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-21 22:19:25,970 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-21 22:19:25,970 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2023-11-21 22:19:25,970 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [222469047] [2023-11-21 22:19:25,971 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-21 22:19:25,971 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-21 22:19:25,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:19:25,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-21 22:19:25,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2023-11-21 22:19:25,972 INFO L87 Difference]: Start difference. First operand 105 states and 114 transitions. Second operand has 6 states, 4 states have (on average 8.5) internal successors, (34), 6 states have internal predecessors, (34), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-21 22:19:26,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:19:26,130 INFO L93 Difference]: Finished difference Result 105 states and 114 transitions. [2023-11-21 22:19:26,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-21 22:19:26,131 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 4 states have (on average 8.5) internal successors, (34), 6 states have internal predecessors, (34), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) Word has length 40 [2023-11-21 22:19:26,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:19:26,132 INFO L225 Difference]: With dead ends: 105 [2023-11-21 22:19:26,132 INFO L226 Difference]: Without dead ends: 102 [2023-11-21 22:19:26,133 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2023-11-21 22:19:26,133 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 38 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 195 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 58 SdHoareTripleChecker+Invalid, 198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 195 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-21 22:19:26,134 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 58 Invalid, 198 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 195 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-21 22:19:26,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2023-11-21 22:19:26,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 102. [2023-11-21 22:19:26,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 79 states have (on average 1.2658227848101267) internal successors, (100), 94 states have internal predecessors, (100), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-21 22:19:26,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 110 transitions. [2023-11-21 22:19:26,141 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 110 transitions. Word has length 40 [2023-11-21 22:19:26,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:19:26,142 INFO L495 AbstractCegarLoop]: Abstraction has 102 states and 110 transitions. [2023-11-21 22:19:26,142 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 4 states have (on average 8.5) internal successors, (34), 6 states have internal predecessors, (34), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-21 22:19:26,142 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 110 transitions. [2023-11-21 22:19:26,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2023-11-21 22:19:26,143 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:19:26,143 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-11-21 22:19:26,164 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3ada25c-94ce-42ec-a201-a7b5f4159441/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2023-11-21 22:19:26,362 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3ada25c-94ce-42ec-a201-a7b5f4159441/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:19:26,362 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-21 22:19:26,362 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:19:26,362 INFO L85 PathProgramCache]: Analyzing trace with hash -360901523, now seen corresponding path program 1 times [2023-11-21 22:19:26,362 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:19:26,363 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1700472513] [2023-11-21 22:19:26,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:19:26,363 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:19:26,378 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-21 22:19:26,387 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [956736951] [2023-11-21 22:19:26,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:19:26,388 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:19:26,388 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3ada25c-94ce-42ec-a201-a7b5f4159441/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:19:26,392 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3ada25c-94ce-42ec-a201-a7b5f4159441/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 22:19:26,412 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3ada25c-94ce-42ec-a201-a7b5f4159441/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-11-21 22:19:26,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:19:26,445 INFO L262 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 14 conjunts are in the unsatisfiable core [2023-11-21 22:19:26,447 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:19:26,802 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-21 22:19:26,802 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-21 22:19:28,647 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:19:28,647 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1700472513] [2023-11-21 22:19:28,647 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-21 22:19:28,647 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [956736951] [2023-11-21 22:19:28,647 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [956736951] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-21 22:19:28,648 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-21 22:19:28,648 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2023-11-21 22:19:28,648 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2103448266] [2023-11-21 22:19:28,648 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-21 22:19:28,648 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-21 22:19:28,648 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:19:28,649 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-21 22:19:28,649 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2023-11-21 22:19:28,649 INFO L87 Difference]: Start difference. First operand 102 states and 110 transitions. Second operand has 8 states, 5 states have (on average 7.0) internal successors, (35), 8 states have internal predecessors, (35), 3 states have call successors, (3), 1 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-21 22:19:29,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:19:29,366 INFO L93 Difference]: Finished difference Result 117 states and 120 transitions. [2023-11-21 22:19:29,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-21 22:19:29,368 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 5 states have (on average 7.0) internal successors, (35), 8 states have internal predecessors, (35), 3 states have call successors, (3), 1 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) Word has length 41 [2023-11-21 22:19:29,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:19:29,369 INFO L225 Difference]: With dead ends: 117 [2023-11-21 22:19:29,369 INFO L226 Difference]: Without dead ends: 114 [2023-11-21 22:19:29,369 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2023-11-21 22:19:29,370 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 116 mSDsluCounter, 61 mSDsCounter, 0 mSdLazyCounter, 333 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 77 SdHoareTripleChecker+Invalid, 339 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 333 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-21 22:19:29,370 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [118 Valid, 77 Invalid, 339 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 333 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-21 22:19:29,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2023-11-21 22:19:29,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 106. [2023-11-21 22:19:29,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106 states, 83 states have (on average 1.2409638554216869) internal successors, (103), 98 states have internal predecessors, (103), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-21 22:19:29,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 113 transitions. [2023-11-21 22:19:29,379 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 113 transitions. Word has length 41 [2023-11-21 22:19:29,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:19:29,380 INFO L495 AbstractCegarLoop]: Abstraction has 106 states and 113 transitions. [2023-11-21 22:19:29,381 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 5 states have (on average 7.0) internal successors, (35), 8 states have internal predecessors, (35), 3 states have call successors, (3), 1 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-21 22:19:29,381 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 113 transitions. [2023-11-21 22:19:29,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2023-11-21 22:19:29,384 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:19:29,384 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-11-21 22:19:29,410 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3ada25c-94ce-42ec-a201-a7b5f4159441/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2023-11-21 22:19:29,610 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3ada25c-94ce-42ec-a201-a7b5f4159441/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:19:29,611 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-21 22:19:29,611 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:19:29,611 INFO L85 PathProgramCache]: Analyzing trace with hash 1696954738, now seen corresponding path program 1 times [2023-11-21 22:19:29,611 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:19:29,611 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [698501841] [2023-11-21 22:19:29,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:19:29,612 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:19:29,630 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-21 22:19:29,632 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1565489954] [2023-11-21 22:19:29,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:19:29,632 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:19:29,632 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3ada25c-94ce-42ec-a201-a7b5f4159441/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:19:29,633 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3ada25c-94ce-42ec-a201-a7b5f4159441/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 22:19:29,652 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3ada25c-94ce-42ec-a201-a7b5f4159441/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-11-21 22:19:29,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:19:29,684 INFO L262 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-21 22:19:29,686 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:19:29,824 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-21 22:19:29,824 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-21 22:19:29,995 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:19:29,995 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [698501841] [2023-11-21 22:19:29,995 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-21 22:19:29,996 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1565489954] [2023-11-21 22:19:29,996 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1565489954] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-21 22:19:29,996 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-21 22:19:29,996 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2023-11-21 22:19:29,996 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1620429073] [2023-11-21 22:19:29,996 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-21 22:19:29,997 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-21 22:19:29,997 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:19:29,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-21 22:19:29,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-11-21 22:19:29,998 INFO L87 Difference]: Start difference. First operand 106 states and 113 transitions. Second operand has 5 states, 4 states have (on average 8.75) internal successors, (35), 5 states have internal predecessors, (35), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-21 22:19:30,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:19:30,184 INFO L93 Difference]: Finished difference Result 113 states and 116 transitions. [2023-11-21 22:19:30,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-21 22:19:30,185 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 8.75) internal successors, (35), 5 states have internal predecessors, (35), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 42 [2023-11-21 22:19:30,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:19:30,186 INFO L225 Difference]: With dead ends: 113 [2023-11-21 22:19:30,186 INFO L226 Difference]: Without dead ends: 99 [2023-11-21 22:19:30,187 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-11-21 22:19:30,187 INFO L413 NwaCegarLoop]: 35 mSDtfsCounter, 19 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 192 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 78 SdHoareTripleChecker+Invalid, 195 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 192 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-21 22:19:30,187 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 78 Invalid, 195 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 192 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-21 22:19:30,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2023-11-21 22:19:30,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 98. [2023-11-21 22:19:30,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 75 states have (on average 1.2266666666666666) internal successors, (92), 90 states have internal predecessors, (92), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-21 22:19:30,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 102 transitions. [2023-11-21 22:19:30,195 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 102 transitions. Word has length 42 [2023-11-21 22:19:30,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:19:30,195 INFO L495 AbstractCegarLoop]: Abstraction has 98 states and 102 transitions. [2023-11-21 22:19:30,196 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 8.75) internal successors, (35), 5 states have internal predecessors, (35), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-21 22:19:30,196 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 102 transitions. [2023-11-21 22:19:30,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2023-11-21 22:19:30,199 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:19:30,199 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-11-21 22:19:30,223 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3ada25c-94ce-42ec-a201-a7b5f4159441/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2023-11-21 22:19:30,418 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3ada25c-94ce-42ec-a201-a7b5f4159441/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:19:30,418 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-21 22:19:30,419 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:19:30,419 INFO L85 PathProgramCache]: Analyzing trace with hash -1915931559, now seen corresponding path program 1 times [2023-11-21 22:19:30,419 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:19:30,419 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2141362879] [2023-11-21 22:19:30,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:19:30,419 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:19:30,431 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-21 22:19:30,439 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [712500409] [2023-11-21 22:19:30,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:19:30,439 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:19:30,440 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3ada25c-94ce-42ec-a201-a7b5f4159441/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:19:30,443 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3ada25c-94ce-42ec-a201-a7b5f4159441/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 22:19:30,460 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3ada25c-94ce-42ec-a201-a7b5f4159441/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2023-11-21 22:19:30,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:19:30,494 INFO L262 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-21 22:19:30,495 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:19:30,567 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-21 22:19:30,567 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-21 22:19:30,650 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-21 22:19:30,650 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:19:30,650 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2141362879] [2023-11-21 22:19:30,650 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-21 22:19:30,650 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [712500409] [2023-11-21 22:19:30,651 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [712500409] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-21 22:19:30,651 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-21 22:19:30,651 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2023-11-21 22:19:30,651 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1752819405] [2023-11-21 22:19:30,651 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-21 22:19:30,652 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-21 22:19:30,653 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:19:30,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-21 22:19:30,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-21 22:19:30,656 INFO L87 Difference]: Start difference. First operand 98 states and 102 transitions. Second operand has 6 states, 5 states have (on average 14.8) internal successors, (74), 6 states have internal predecessors, (74), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2023-11-21 22:19:30,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:19:30,708 INFO L93 Difference]: Finished difference Result 182 states and 189 transitions. [2023-11-21 22:19:30,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-21 22:19:30,709 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 14.8) internal successors, (74), 6 states have internal predecessors, (74), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) Word has length 49 [2023-11-21 22:19:30,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:19:30,711 INFO L225 Difference]: With dead ends: 182 [2023-11-21 22:19:30,711 INFO L226 Difference]: Without dead ends: 181 [2023-11-21 22:19:30,713 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-21 22:19:30,713 INFO L413 NwaCegarLoop]: 50 mSDtfsCounter, 53 mSDsluCounter, 171 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 221 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-21 22:19:30,714 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 221 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-21 22:19:30,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2023-11-21 22:19:30,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 134. [2023-11-21 22:19:30,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134 states, 109 states have (on average 1.3027522935779816) internal successors, (142), 124 states have internal predecessors, (142), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-11-21 22:19:30,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 156 transitions. [2023-11-21 22:19:30,725 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 156 transitions. Word has length 49 [2023-11-21 22:19:30,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:19:30,725 INFO L495 AbstractCegarLoop]: Abstraction has 134 states and 156 transitions. [2023-11-21 22:19:30,726 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 14.8) internal successors, (74), 6 states have internal predecessors, (74), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2023-11-21 22:19:30,726 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 156 transitions. [2023-11-21 22:19:30,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-11-21 22:19:30,727 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:19:30,727 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:19:30,752 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3ada25c-94ce-42ec-a201-a7b5f4159441/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2023-11-21 22:19:30,946 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3ada25c-94ce-42ec-a201-a7b5f4159441/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:19:30,946 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-21 22:19:30,947 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:19:30,947 INFO L85 PathProgramCache]: Analyzing trace with hash 2008604656, now seen corresponding path program 2 times [2023-11-21 22:19:30,947 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:19:30,947 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [870656306] [2023-11-21 22:19:30,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:19:30,947 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:19:30,957 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-21 22:19:30,964 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2014395392] [2023-11-21 22:19:30,965 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-21 22:19:30,965 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:19:30,965 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3ada25c-94ce-42ec-a201-a7b5f4159441/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:19:30,966 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3ada25c-94ce-42ec-a201-a7b5f4159441/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 22:19:30,989 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3ada25c-94ce-42ec-a201-a7b5f4159441/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2023-11-21 22:19:31,050 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-21 22:19:31,051 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-21 22:19:31,052 INFO L262 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-21 22:19:31,054 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:19:31,356 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-21 22:19:31,356 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-21 22:19:31,531 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:19:31,531 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [870656306] [2023-11-21 22:19:31,531 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-21 22:19:31,531 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2014395392] [2023-11-21 22:19:31,532 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2014395392] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-21 22:19:31,532 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-21 22:19:31,532 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2023-11-21 22:19:31,532 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1687606261] [2023-11-21 22:19:31,532 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-21 22:19:31,533 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-21 22:19:31,533 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:19:31,533 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-21 22:19:31,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-11-21 22:19:31,534 INFO L87 Difference]: Start difference. First operand 134 states and 156 transitions. Second operand has 7 states, 5 states have (on average 9.8) internal successors, (49), 7 states have internal predecessors, (49), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-21 22:19:31,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:19:31,816 INFO L93 Difference]: Finished difference Result 158 states and 171 transitions. [2023-11-21 22:19:31,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-21 22:19:31,816 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 9.8) internal successors, (49), 7 states have internal predecessors, (49), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) Word has length 58 [2023-11-21 22:19:31,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:19:31,817 INFO L225 Difference]: With dead ends: 158 [2023-11-21 22:19:31,818 INFO L226 Difference]: Without dead ends: 152 [2023-11-21 22:19:31,818 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-11-21 22:19:31,819 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 80 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 262 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 71 SdHoareTripleChecker+Invalid, 267 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 262 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-21 22:19:31,819 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 71 Invalid, 267 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 262 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-21 22:19:31,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2023-11-21 22:19:31,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 138. [2023-11-21 22:19:31,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 138 states, 113 states have (on average 1.2566371681415929) internal successors, (142), 128 states have internal predecessors, (142), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-11-21 22:19:31,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 156 transitions. [2023-11-21 22:19:31,831 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 156 transitions. Word has length 58 [2023-11-21 22:19:31,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:19:31,831 INFO L495 AbstractCegarLoop]: Abstraction has 138 states and 156 transitions. [2023-11-21 22:19:31,832 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 9.8) internal successors, (49), 7 states have internal predecessors, (49), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-21 22:19:31,832 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 156 transitions. [2023-11-21 22:19:31,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-11-21 22:19:31,833 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:19:31,833 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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] [2023-11-21 22:19:31,840 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3ada25c-94ce-42ec-a201-a7b5f4159441/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2023-11-21 22:19:32,039 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3ada25c-94ce-42ec-a201-a7b5f4159441/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:19:32,040 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)] === [2023-11-21 22:19:32,040 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:19:32,040 INFO L85 PathProgramCache]: Analyzing trace with hash 796878004, now seen corresponding path program 1 times [2023-11-21 22:19:32,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:19:32,040 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1828252654] [2023-11-21 22:19:32,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:19:32,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:19:32,061 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-21 22:19:32,062 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1902334826] [2023-11-21 22:19:32,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:19:32,062 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:19:32,062 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3ada25c-94ce-42ec-a201-a7b5f4159441/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:19:32,063 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3ada25c-94ce-42ec-a201-a7b5f4159441/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 22:19:32,090 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3ada25c-94ce-42ec-a201-a7b5f4159441/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2023-11-21 22:19:32,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:19:32,124 INFO L262 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 20 conjunts are in the unsatisfiable core [2023-11-21 22:19:32,126 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:19:32,771 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 1 proven. 36 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-21 22:19:32,771 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-21 22:19:34,487 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:19:34,487 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1828252654] [2023-11-21 22:19:34,487 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-21 22:19:34,487 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1902334826] [2023-11-21 22:19:34,487 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1902334826] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-21 22:19:34,487 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-21 22:19:34,487 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2023-11-21 22:19:34,488 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1854139961] [2023-11-21 22:19:34,488 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-21 22:19:34,488 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-21 22:19:34,488 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:19:34,489 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-21 22:19:34,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=151, Unknown=0, NotChecked=0, Total=210 [2023-11-21 22:19:34,489 INFO L87 Difference]: Start difference. First operand 138 states and 156 transitions. Second operand has 11 states, 8 states have (on average 6.75) internal successors, (54), 11 states have internal predecessors, (54), 4 states have call successors, (4), 1 states have call predecessors, (4), 3 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-21 22:19:35,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:19:35,448 INFO L93 Difference]: Finished difference Result 139 states and 157 transitions. [2023-11-21 22:19:35,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-21 22:19:35,449 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 8 states have (on average 6.75) internal successors, (54), 11 states have internal predecessors, (54), 4 states have call successors, (4), 1 states have call predecessors, (4), 3 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) Word has length 62 [2023-11-21 22:19:35,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:19:35,451 INFO L225 Difference]: With dead ends: 139 [2023-11-21 22:19:35,451 INFO L226 Difference]: Without dead ends: 133 [2023-11-21 22:19:35,451 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=85, Invalid=221, Unknown=0, NotChecked=0, Total=306 [2023-11-21 22:19:35,452 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 51 mSDsluCounter, 134 mSDsCounter, 0 mSdLazyCounter, 543 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 155 SdHoareTripleChecker+Invalid, 554 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 543 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-21 22:19:35,452 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 155 Invalid, 554 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 543 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-21 22:19:35,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2023-11-21 22:19:35,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 128. [2023-11-21 22:19:35,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 128 states, 109 states have (on average 1.1926605504587156) internal successors, (130), 118 states have internal predecessors, (130), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-11-21 22:19:35,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 144 transitions. [2023-11-21 22:19:35,464 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 144 transitions. Word has length 62 [2023-11-21 22:19:35,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:19:35,465 INFO L495 AbstractCegarLoop]: Abstraction has 128 states and 144 transitions. [2023-11-21 22:19:35,465 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 8 states have (on average 6.75) internal successors, (54), 11 states have internal predecessors, (54), 4 states have call successors, (4), 1 states have call predecessors, (4), 3 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-21 22:19:35,465 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 144 transitions. [2023-11-21 22:19:35,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-11-21 22:19:35,466 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:19:35,466 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:19:35,493 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3ada25c-94ce-42ec-a201-a7b5f4159441/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2023-11-21 22:19:35,680 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3ada25c-94ce-42ec-a201-a7b5f4159441/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2023-11-21 22:19:35,680 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-21 22:19:35,681 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:19:35,681 INFO L85 PathProgramCache]: Analyzing trace with hash 1295585046, now seen corresponding path program 2 times [2023-11-21 22:19:35,681 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:19:35,681 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [932826479] [2023-11-21 22:19:35,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:19:35,681 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:19:35,689 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-21 22:19:35,690 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [438907164] [2023-11-21 22:19:35,690 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-21 22:19:35,690 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:19:35,690 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3ada25c-94ce-42ec-a201-a7b5f4159441/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:19:35,691 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3ada25c-94ce-42ec-a201-a7b5f4159441/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 22:19:35,696 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3ada25c-94ce-42ec-a201-a7b5f4159441/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2023-11-21 22:19:35,754 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-21 22:19:35,754 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-21 22:19:35,756 INFO L262 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 16 conjunts are in the unsatisfiable core [2023-11-21 22:19:35,758 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:19:36,197 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 1 proven. 40 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-21 22:19:36,197 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-21 22:19:37,532 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:19:37,533 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [932826479] [2023-11-21 22:19:37,533 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-21 22:19:37,533 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [438907164] [2023-11-21 22:19:37,533 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [438907164] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-21 22:19:37,533 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-21 22:19:37,533 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2023-11-21 22:19:37,533 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2045017327] [2023-11-21 22:19:37,534 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-21 22:19:37,534 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-21 22:19:37,534 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:19:37,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-21 22:19:37,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2023-11-21 22:19:37,535 INFO L87 Difference]: Start difference. First operand 128 states and 144 transitions. Second operand has 9 states, 6 states have (on average 9.333333333333334) internal successors, (56), 9 states have internal predecessors, (56), 4 states have call successors, (4), 1 states have call predecessors, (4), 3 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-21 22:19:38,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:19:38,002 INFO L93 Difference]: Finished difference Result 145 states and 156 transitions. [2023-11-21 22:19:38,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-21 22:19:38,002 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 6 states have (on average 9.333333333333334) internal successors, (56), 9 states have internal predecessors, (56), 4 states have call successors, (4), 1 states have call predecessors, (4), 3 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) Word has length 64 [2023-11-21 22:19:38,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:19:38,004 INFO L225 Difference]: With dead ends: 145 [2023-11-21 22:19:38,004 INFO L226 Difference]: Without dead ends: 142 [2023-11-21 22:19:38,004 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2023-11-21 22:19:38,005 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 97 mSDsluCounter, 87 mSDsCounter, 0 mSdLazyCounter, 461 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 108 SdHoareTripleChecker+Invalid, 464 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 461 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-21 22:19:38,005 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 108 Invalid, 464 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 461 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-21 22:19:38,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2023-11-21 22:19:38,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 136. [2023-11-21 22:19:38,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 136 states, 117 states have (on average 1.1623931623931625) internal successors, (136), 126 states have internal predecessors, (136), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-11-21 22:19:38,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 150 transitions. [2023-11-21 22:19:38,016 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 150 transitions. Word has length 64 [2023-11-21 22:19:38,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:19:38,017 INFO L495 AbstractCegarLoop]: Abstraction has 136 states and 150 transitions. [2023-11-21 22:19:38,017 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 6 states have (on average 9.333333333333334) internal successors, (56), 9 states have internal predecessors, (56), 4 states have call successors, (4), 1 states have call predecessors, (4), 3 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-21 22:19:38,017 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 150 transitions. [2023-11-21 22:19:38,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2023-11-21 22:19:38,018 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:19:38,018 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-11-21 22:19:38,038 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3ada25c-94ce-42ec-a201-a7b5f4159441/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2023-11-21 22:19:38,228 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3ada25c-94ce-42ec-a201-a7b5f4159441/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2023-11-21 22:19:38,228 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-21 22:19:38,229 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:19:38,229 INFO L85 PathProgramCache]: Analyzing trace with hash 1508430825, now seen corresponding path program 2 times [2023-11-21 22:19:38,229 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:19:38,229 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1743008287] [2023-11-21 22:19:38,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:19:38,229 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:19:38,250 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-21 22:19:38,251 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [734475814] [2023-11-21 22:19:38,251 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-21 22:19:38,251 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:19:38,251 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3ada25c-94ce-42ec-a201-a7b5f4159441/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:19:38,265 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3ada25c-94ce-42ec-a201-a7b5f4159441/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 22:19:38,326 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3ada25c-94ce-42ec-a201-a7b5f4159441/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2023-11-21 22:19:38,413 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-21 22:19:38,413 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-21 22:19:38,414 INFO L262 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 14 conjunts are in the unsatisfiable core [2023-11-21 22:19:38,415 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:19:39,585 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 1 proven. 41 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-21 22:19:39,586 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-21 22:19:39,799 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-11-21 22:19:39,799 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:19:39,799 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1743008287] [2023-11-21 22:19:39,799 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-21 22:19:39,799 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [734475814] [2023-11-21 22:19:39,800 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [734475814] provided 1 perfect and 1 imperfect interpolant sequences [2023-11-21 22:19:39,800 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-21 22:19:39,800 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 10 [2023-11-21 22:19:39,801 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1586423040] [2023-11-21 22:19:39,801 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:19:39,802 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-21 22:19:39,802 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:19:39,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-21 22:19:39,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2023-11-21 22:19:39,804 INFO L87 Difference]: Start difference. First operand 136 states and 150 transitions. Second operand has 6 states, 4 states have (on average 11.25) internal successors, (45), 6 states have internal predecessors, (45), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-21 22:19:41,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:19:41,909 INFO L93 Difference]: Finished difference Result 136 states and 150 transitions. [2023-11-21 22:19:41,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-21 22:19:41,910 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 4 states have (on average 11.25) internal successors, (45), 6 states have internal predecessors, (45), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 65 [2023-11-21 22:19:41,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:19:41,911 INFO L225 Difference]: With dead ends: 136 [2023-11-21 22:19:41,911 INFO L226 Difference]: Without dead ends: 134 [2023-11-21 22:19:41,912 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2023-11-21 22:19:41,912 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 52 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 133 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2023-11-21 22:19:41,913 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 50 Invalid, 137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 133 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2023-11-21 22:19:41,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2023-11-21 22:19:41,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 134. [2023-11-21 22:19:41,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134 states, 117 states have (on average 1.1282051282051282) internal successors, (132), 124 states have internal predecessors, (132), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-11-21 22:19:41,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 146 transitions. [2023-11-21 22:19:41,926 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 146 transitions. Word has length 65 [2023-11-21 22:19:41,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:19:41,926 INFO L495 AbstractCegarLoop]: Abstraction has 134 states and 146 transitions. [2023-11-21 22:19:41,927 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 4 states have (on average 11.25) internal successors, (45), 6 states have internal predecessors, (45), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-21 22:19:41,927 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 146 transitions. [2023-11-21 22:19:41,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2023-11-21 22:19:41,928 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:19:41,928 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:19:41,940 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3ada25c-94ce-42ec-a201-a7b5f4159441/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2023-11-21 22:19:42,134 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3ada25c-94ce-42ec-a201-a7b5f4159441/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:19:42,134 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-21 22:19:42,134 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:19:42,134 INFO L85 PathProgramCache]: Analyzing trace with hash -483284616, now seen corresponding path program 1 times [2023-11-21 22:19:42,134 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:19:42,134 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1290355498] [2023-11-21 22:19:42,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:19:42,135 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:19:42,144 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-21 22:19:42,144 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1625218999] [2023-11-21 22:19:42,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:19:42,144 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:19:42,144 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3ada25c-94ce-42ec-a201-a7b5f4159441/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:19:42,145 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3ada25c-94ce-42ec-a201-a7b5f4159441/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 22:19:42,168 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3ada25c-94ce-42ec-a201-a7b5f4159441/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2023-11-21 22:19:42,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:19:42,208 INFO L262 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-21 22:19:42,210 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:19:42,458 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 1 proven. 43 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-21 22:19:42,458 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-21 22:19:42,656 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-11-21 22:19:42,656 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:19:42,656 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1290355498] [2023-11-21 22:19:42,656 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-21 22:19:42,657 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1625218999] [2023-11-21 22:19:42,657 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1625218999] provided 1 perfect and 1 imperfect interpolant sequences [2023-11-21 22:19:42,657 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-21 22:19:42,657 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 10 [2023-11-21 22:19:42,657 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1194341518] [2023-11-21 22:19:42,658 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:19:42,658 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-21 22:19:42,658 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:19:42,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-21 22:19:42,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2023-11-21 22:19:42,659 INFO L87 Difference]: Start difference. First operand 134 states and 146 transitions. Second operand has 6 states, 4 states have (on average 11.5) internal successors, (46), 6 states have internal predecessors, (46), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-21 22:19:43,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:19:43,330 INFO L93 Difference]: Finished difference Result 134 states and 146 transitions. [2023-11-21 22:19:43,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-21 22:19:43,331 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 4 states have (on average 11.5) internal successors, (46), 6 states have internal predecessors, (46), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 66 [2023-11-21 22:19:43,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:19:43,332 INFO L225 Difference]: With dead ends: 134 [2023-11-21 22:19:43,332 INFO L226 Difference]: Without dead ends: 122 [2023-11-21 22:19:43,333 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156 [2023-11-21 22:19:43,333 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 70 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 125 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-21 22:19:43,334 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 50 Invalid, 131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 125 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-21 22:19:43,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2023-11-21 22:19:43,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 122. [2023-11-21 22:19:43,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122 states, 107 states have (on average 1.0934579439252337) internal successors, (117), 112 states have internal predecessors, (117), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-11-21 22:19:43,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 131 transitions. [2023-11-21 22:19:43,349 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 131 transitions. Word has length 66 [2023-11-21 22:19:43,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:19:43,350 INFO L495 AbstractCegarLoop]: Abstraction has 122 states and 131 transitions. [2023-11-21 22:19:43,350 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 4 states have (on average 11.5) internal successors, (46), 6 states have internal predecessors, (46), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-21 22:19:43,350 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 131 transitions. [2023-11-21 22:19:43,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-11-21 22:19:43,351 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:19:43,351 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:19:43,372 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3ada25c-94ce-42ec-a201-a7b5f4159441/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2023-11-21 22:19:43,564 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3ada25c-94ce-42ec-a201-a7b5f4159441/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:19:43,564 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-21 22:19:43,565 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:19:43,565 INFO L85 PathProgramCache]: Analyzing trace with hash -1115788185, now seen corresponding path program 3 times [2023-11-21 22:19:43,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:19:43,565 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [944317386] [2023-11-21 22:19:43,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:19:43,565 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:19:43,584 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-21 22:19:43,588 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1232221618] [2023-11-21 22:19:43,588 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-21 22:19:43,588 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:19:43,588 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3ada25c-94ce-42ec-a201-a7b5f4159441/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:19:43,590 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3ada25c-94ce-42ec-a201-a7b5f4159441/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 22:19:43,604 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3ada25c-94ce-42ec-a201-a7b5f4159441/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2023-11-21 22:19:44,787 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2023-11-21 22:19:44,787 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-21 22:19:44,789 INFO L262 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 26 conjunts are in the unsatisfiable core [2023-11-21 22:19:44,791 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:19:55,089 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 2 proven. 73 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-11-21 22:19:55,089 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-21 22:19:55,841 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:19:55,841 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [944317386] [2023-11-21 22:19:55,841 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-21 22:19:55,841 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1232221618] [2023-11-21 22:19:55,841 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1232221618] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-21 22:19:55,841 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-21 22:19:55,841 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2023-11-21 22:19:55,842 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1573732723] [2023-11-21 22:19:55,842 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-21 22:19:55,842 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-21 22:19:55,842 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:19:55,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-21 22:19:55,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=164, Unknown=1, NotChecked=0, Total=240 [2023-11-21 22:19:55,843 INFO L87 Difference]: Start difference. First operand 122 states and 131 transitions. Second operand has 13 states, 10 states have (on average 7.0) internal successors, (70), 13 states have internal predecessors, (70), 5 states have call successors, (5), 1 states have call predecessors, (5), 3 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-21 22:20:05,008 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-21 22:20:07,164 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-21 22:20:09,166 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-21 22:20:12,502 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0]