./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/nla-digbench/ps3-ll.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_898602a8-c5ca-4cde-bf37-f466a8e37161/bin/uautomizer-verify-bycVGegfSx/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_898602a8-c5ca-4cde-bf37-f466a8e37161/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_898602a8-c5ca-4cde-bf37-f466a8e37161/bin/uautomizer-verify-bycVGegfSx/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_898602a8-c5ca-4cde-bf37-f466a8e37161/bin/uautomizer-verify-bycVGegfSx/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench/ps3-ll.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_898602a8-c5ca-4cde-bf37-f466a8e37161/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_898602a8-c5ca-4cde-bf37-f466a8e37161/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 8db0248129cbdf684d5c34c8cefe6849dfc0aface1aea6f02e53557e5a736fa9 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 22:14:51,420 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 22:14:51,533 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_898602a8-c5ca-4cde-bf37-f466a8e37161/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-21 22:14:51,544 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 22:14:51,545 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 22:14:51,589 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 22:14:51,590 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 22:14:51,591 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 22:14:51,592 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-21 22:14:51,597 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-21 22:14:51,598 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 22:14:51,599 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 22:14:51,600 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 22:14:51,601 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 22:14:51,602 INFO L153 SettingsManager]: * Use SBE=true [2023-11-21 22:14:51,603 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 22:14:51,603 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 22:14:51,603 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-21 22:14:51,604 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 22:14:51,604 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-21 22:14:51,605 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 22:14:51,606 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 22:14:51,606 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 22:14:51,606 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 22:14:51,607 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-21 22:14:51,607 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-21 22:14:51,608 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-21 22:14:51,608 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 22:14:51,609 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 22:14:51,610 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 22:14:51,611 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-21 22:14:51,612 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-21 22:14:51,612 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 22:14:51,612 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:14:51,613 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 22:14:51,613 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 22:14:51,613 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 22:14:51,614 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-21 22:14:51,614 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 22:14:51,614 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 22:14:51,614 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-21 22:14:51,615 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 22:14:51,615 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-21 22:14:51,615 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 22:14:51,616 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_898602a8-c5ca-4cde-bf37-f466a8e37161/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_898602a8-c5ca-4cde-bf37-f466a8e37161/bin/uautomizer-verify-bycVGegfSx Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8db0248129cbdf684d5c34c8cefe6849dfc0aface1aea6f02e53557e5a736fa9 [2023-11-21 22:14:51,971 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 22:14:51,993 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 22:14:51,998 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 22:14:52,001 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 22:14:52,002 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 22:14:52,003 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_898602a8-c5ca-4cde-bf37-f466a8e37161/bin/uautomizer-verify-bycVGegfSx/../../sv-benchmarks/c/nla-digbench/ps3-ll.c [2023-11-21 22:14:55,144 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 22:14:55,356 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 22:14:55,356 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_898602a8-c5ca-4cde-bf37-f466a8e37161/sv-benchmarks/c/nla-digbench/ps3-ll.c [2023-11-21 22:14:55,363 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_898602a8-c5ca-4cde-bf37-f466a8e37161/bin/uautomizer-verify-bycVGegfSx/data/0f9868360/40c50b33c33148f08926bfae74c2bf30/FLAG2ceeeddc1 [2023-11-21 22:14:55,376 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_898602a8-c5ca-4cde-bf37-f466a8e37161/bin/uautomizer-verify-bycVGegfSx/data/0f9868360/40c50b33c33148f08926bfae74c2bf30 [2023-11-21 22:14:55,378 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 22:14:55,380 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 22:14:55,382 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 22:14:55,382 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 22:14:55,388 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 22:14:55,389 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:14:55" (1/1) ... [2023-11-21 22:14:55,390 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5d614cd1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:14:55, skipping insertion in model container [2023-11-21 22:14:55,391 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:14:55" (1/1) ... [2023-11-21 22:14:55,417 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 22:14:55,700 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:14:55,714 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 22:14:55,753 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:14:55,771 INFO L206 MainTranslator]: Completed translation [2023-11-21 22:14:55,771 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:14:55 WrapperNode [2023-11-21 22:14:55,772 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 22:14:55,773 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 22:14:55,773 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 22:14:55,774 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 22:14:55,782 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:14:55" (1/1) ... [2023-11-21 22:14:55,805 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:14:55" (1/1) ... [2023-11-21 22:14:55,847 INFO L138 Inliner]: procedures = 14, calls = 10, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 83 [2023-11-21 22:14:55,848 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 22:14:55,856 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 22:14:55,856 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 22:14:55,857 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 22:14:55,870 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:14:55" (1/1) ... [2023-11-21 22:14:55,870 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:14:55" (1/1) ... [2023-11-21 22:14:55,874 INFO L184 PluginConnector]: Executing the observer HeapSplitter from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:14:55" (1/1) ... [2023-11-21 22:14:55,898 INFO L187 HeapSplitter]: Split 2 memory accesses to 1 slices as follows [2] [2023-11-21 22:14:55,898 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:14:55" (1/1) ... [2023-11-21 22:14:55,898 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:14:55" (1/1) ... [2023-11-21 22:14:55,908 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:14:55" (1/1) ... [2023-11-21 22:14:55,911 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:14:55" (1/1) ... [2023-11-21 22:14:55,912 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:14:55" (1/1) ... [2023-11-21 22:14:55,913 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:14:55" (1/1) ... [2023-11-21 22:14:55,915 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 22:14:55,916 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 22:14:55,916 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 22:14:55,916 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 22:14:55,917 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:14:55" (1/1) ... [2023-11-21 22:14:55,935 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:14:55,950 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_898602a8-c5ca-4cde-bf37-f466a8e37161/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:14:55,968 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_898602a8-c5ca-4cde-bf37-f466a8e37161/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-21 22:14:56,012 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_898602a8-c5ca-4cde-bf37-f466a8e37161/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-21 22:14:56,025 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 22:14:56,025 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-21 22:14:56,025 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 22:14:56,026 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 22:14:56,026 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-21 22:14:56,026 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-21 22:14:56,101 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 22:14:56,104 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 22:14:56,475 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 22:14:56,540 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 22:14:56,541 INFO L308 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-21 22:14:56,543 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:14:56 BoogieIcfgContainer [2023-11-21 22:14:56,544 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 22:14:56,547 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-21 22:14:56,547 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-21 22:14:56,551 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-21 22:14:56,551 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 10:14:55" (1/3) ... [2023-11-21 22:14:56,552 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49da2f57 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:14:56, skipping insertion in model container [2023-11-21 22:14:56,553 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:14:55" (2/3) ... [2023-11-21 22:14:56,554 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49da2f57 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:14:56, skipping insertion in model container [2023-11-21 22:14:56,555 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:14:56" (3/3) ... [2023-11-21 22:14:56,557 INFO L112 eAbstractionObserver]: Analyzing ICFG ps3-ll.c [2023-11-21 22:14:56,581 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-21 22:14:56,581 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 44 error locations. [2023-11-21 22:14:56,635 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-21 22:14:56,644 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;@7e16a3c4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 22:14:56,644 INFO L358 AbstractCegarLoop]: Starting to check reachability of 44 error locations. [2023-11-21 22:14:56,649 INFO L276 IsEmpty]: Start isEmpty. Operand has 97 states, 49 states have (on average 1.9387755102040816) internal successors, (95), 93 states have internal predecessors, (95), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-21 22:14:56,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-21 22:14:56,655 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:14:56,656 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2023-11-21 22:14:56,657 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2023-11-21 22:14:56,663 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:14:56,663 INFO L85 PathProgramCache]: Analyzing trace with hash 160994, now seen corresponding path program 1 times [2023-11-21 22:14:56,674 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:14:56,674 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1938863783] [2023-11-21 22:14:56,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:14:56,675 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:14:56,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:14:56,875 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:14:56,875 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:14:56,876 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1938863783] [2023-11-21 22:14:56,877 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1938863783] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:14:56,877 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:14:56,877 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:14:56,879 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [921689241] [2023-11-21 22:14:56,880 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:14:56,884 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-21 22:14:56,884 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:14:56,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-21 22:14:56,915 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-21 22:14:56,917 INFO L87 Difference]: Start difference. First operand has 97 states, 49 states have (on average 1.9387755102040816) internal successors, (95), 93 states have internal predecessors, (95), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 2 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:14:56,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:14:56,965 INFO L93 Difference]: Finished difference Result 136 states and 139 transitions. [2023-11-21 22:14:56,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-21 22:14:56,968 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2023-11-21 22:14:56,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:14:56,977 INFO L225 Difference]: With dead ends: 136 [2023-11-21 22:14:56,977 INFO L226 Difference]: Without dead ends: 89 [2023-11-21 22:14:56,980 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-21 22:14:56,985 INFO L413 NwaCegarLoop]: 90 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 90 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-21 22:14:56,986 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 90 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-21 22:14:57,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2023-11-21 22:14:57,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 89. [2023-11-21 22:14:57,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89 states, 48 states have (on average 1.8125) internal successors, (87), 86 states have internal predecessors, (87), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-21 22:14:57,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 89 transitions. [2023-11-21 22:14:57,035 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 89 transitions. Word has length 3 [2023-11-21 22:14:57,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:14:57,036 INFO L495 AbstractCegarLoop]: Abstraction has 89 states and 89 transitions. [2023-11-21 22:14:57,036 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:14:57,036 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 89 transitions. [2023-11-21 22:14:57,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-21 22:14:57,037 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:14:57,037 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2023-11-21 22:14:57,037 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-21 22:14:57,038 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2023-11-21 22:14:57,039 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:14:57,039 INFO L85 PathProgramCache]: Analyzing trace with hash 156996, now seen corresponding path program 1 times [2023-11-21 22:14:57,039 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:14:57,040 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1854048059] [2023-11-21 22:14:57,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:14:57,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:14:57,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:14:57,118 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:14:57,118 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:14:57,119 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1854048059] [2023-11-21 22:14:57,119 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1854048059] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:14:57,119 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:14:57,119 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-21 22:14:57,120 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2020676510] [2023-11-21 22:14:57,120 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:14:57,121 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:14:57,122 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:14:57,122 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:14:57,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:14:57,123 INFO L87 Difference]: Start difference. First operand 89 states and 89 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:14:57,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:14:57,303 INFO L93 Difference]: Finished difference Result 175 states and 176 transitions. [2023-11-21 22:14:57,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:14:57,304 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2023-11-21 22:14:57,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:14:57,307 INFO L225 Difference]: With dead ends: 175 [2023-11-21 22:14:57,307 INFO L226 Difference]: Without dead ends: 170 [2023-11-21 22:14:57,308 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 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 22:14:57,310 INFO L413 NwaCegarLoop]: 57 mSDtfsCounter, 78 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 109 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-21 22:14:57,311 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [79 Valid, 109 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-21 22:14:57,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2023-11-21 22:14:57,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 119. [2023-11-21 22:14:57,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119 states, 77 states have (on average 1.7662337662337662) internal successors, (136), 115 states have internal predecessors, (136), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-21 22:14:57,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 140 transitions. [2023-11-21 22:14:57,328 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 140 transitions. Word has length 3 [2023-11-21 22:14:57,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:14:57,328 INFO L495 AbstractCegarLoop]: Abstraction has 119 states and 140 transitions. [2023-11-21 22:14:57,328 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:14:57,329 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 140 transitions. [2023-11-21 22:14:57,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-21 22:14:57,329 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:14:57,329 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-11-21 22:14:57,330 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-21 22:14:57,330 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2023-11-21 22:14:57,331 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:14:57,331 INFO L85 PathProgramCache]: Analyzing trace with hash 150874598, now seen corresponding path program 1 times [2023-11-21 22:14:57,331 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:14:57,332 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1552492174] [2023-11-21 22:14:57,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:14:57,332 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:14:57,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:14:57,372 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:14:57,373 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:14:57,373 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1552492174] [2023-11-21 22:14:57,373 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1552492174] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:14:57,373 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:14:57,374 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-21 22:14:57,374 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1367986365] [2023-11-21 22:14:57,374 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:14:57,375 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:14:57,375 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:14:57,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:14:57,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:14:57,376 INFO L87 Difference]: Start difference. First operand 119 states and 140 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:14:57,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:14:57,581 INFO L93 Difference]: Finished difference Result 167 states and 169 transitions. [2023-11-21 22:14:57,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:14:57,582 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2023-11-21 22:14:57,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:14:57,583 INFO L225 Difference]: With dead ends: 167 [2023-11-21 22:14:57,584 INFO L226 Difference]: Without dead ends: 149 [2023-11-21 22:14:57,584 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 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 22:14:57,586 INFO L413 NwaCegarLoop]: 42 mSDtfsCounter, 52 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 118 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 59 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-21 22:14:57,587 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 59 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 118 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-21 22:14:57,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2023-11-21 22:14:57,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 131. [2023-11-21 22:14:57,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 131 states, 89 states have (on average 1.5730337078651686) internal successors, (140), 127 states have internal predecessors, (140), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-21 22:14:57,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 144 transitions. [2023-11-21 22:14:57,602 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 144 transitions. Word has length 5 [2023-11-21 22:14:57,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:14:57,603 INFO L495 AbstractCegarLoop]: Abstraction has 131 states and 144 transitions. [2023-11-21 22:14:57,603 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:14:57,604 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 144 transitions. [2023-11-21 22:14:57,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-21 22:14:57,604 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:14:57,604 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:14:57,605 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-21 22:14:57,605 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2023-11-21 22:14:57,606 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:14:57,606 INFO L85 PathProgramCache]: Analyzing trace with hash -1889945652, now seen corresponding path program 1 times [2023-11-21 22:14:57,606 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:14:57,606 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [501046025] [2023-11-21 22:14:57,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:14:57,607 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:14:57,627 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-21 22:14:57,627 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [51131510] [2023-11-21 22:14:57,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:14:57,628 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:14:57,628 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_898602a8-c5ca-4cde-bf37-f466a8e37161/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:14:57,630 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_898602a8-c5ca-4cde-bf37-f466a8e37161/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 22:14:57,666 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_898602a8-c5ca-4cde-bf37-f466a8e37161/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-21 22:14:57,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:14:57,698 INFO L262 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-21 22:14:57,704 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:14:57,791 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:14:57,792 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 22:14:57,792 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:14:57,792 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [501046025] [2023-11-21 22:14:57,793 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-21 22:14:57,793 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [51131510] [2023-11-21 22:14:57,793 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [51131510] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:14:57,794 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:14:57,794 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:14:57,795 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [694985230] [2023-11-21 22:14:57,799 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:14:57,800 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-21 22:14:57,800 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:14:57,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-21 22:14:57,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-21 22:14:57,801 INFO L87 Difference]: Start difference. First operand 131 states and 144 transitions. Second operand has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:14:57,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:14:57,987 INFO L93 Difference]: Finished difference Result 131 states and 144 transitions. [2023-11-21 22:14:57,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-21 22:14:57,988 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2023-11-21 22:14:57,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:14:57,989 INFO L225 Difference]: With dead ends: 131 [2023-11-21 22:14:57,989 INFO L226 Difference]: Without dead ends: 117 [2023-11-21 22:14:57,990 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 22:14:57,991 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 67 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-21 22:14:57,992 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 20 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-21 22:14:57,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2023-11-21 22:14:58,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 113. [2023-11-21 22:14:58,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113 states, 85 states have (on average 1.3764705882352941) internal successors, (117), 109 states have internal predecessors, (117), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-21 22:14:58,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 121 transitions. [2023-11-21 22:14:58,004 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 121 transitions. Word has length 11 [2023-11-21 22:14:58,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:14:58,005 INFO L495 AbstractCegarLoop]: Abstraction has 113 states and 121 transitions. [2023-11-21 22:14:58,005 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:14:58,005 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 121 transitions. [2023-11-21 22:14:58,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-21 22:14:58,006 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:14:58,006 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:14:58,028 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_898602a8-c5ca-4cde-bf37-f466a8e37161/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-21 22:14:58,220 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_898602a8-c5ca-4cde-bf37-f466a8e37161/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:14:58,220 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2023-11-21 22:14:58,221 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:14:58,221 INFO L85 PathProgramCache]: Analyzing trace with hash 1541226993, now seen corresponding path program 1 times [2023-11-21 22:14:58,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:14:58,221 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1763699443] [2023-11-21 22:14:58,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:14:58,222 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:14:58,230 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-21 22:14:58,231 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [955319340] [2023-11-21 22:14:58,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:14:58,231 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:14:58,231 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_898602a8-c5ca-4cde-bf37-f466a8e37161/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:14:58,234 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_898602a8-c5ca-4cde-bf37-f466a8e37161/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 22:14:58,242 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_898602a8-c5ca-4cde-bf37-f466a8e37161/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-21 22:14:58,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:14:58,278 INFO L262 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-21 22:14:58,279 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:14:58,365 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:14:58,366 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 22:14:58,366 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:14:58,366 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1763699443] [2023-11-21 22:14:58,367 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-21 22:14:58,367 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [955319340] [2023-11-21 22:14:58,367 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [955319340] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:14:58,367 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:14:58,368 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-21 22:14:58,368 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1955991202] [2023-11-21 22:14:58,368 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:14:58,368 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:14:58,369 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:14:58,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:14:58,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:14:58,370 INFO L87 Difference]: Start difference. First operand 113 states and 121 transitions. Second operand has 3 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:14:58,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:14:58,511 INFO L93 Difference]: Finished difference Result 126 states and 127 transitions. [2023-11-21 22:14:58,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:14:58,511 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2023-11-21 22:14:58,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:14:58,513 INFO L225 Difference]: With dead ends: 126 [2023-11-21 22:14:58,513 INFO L226 Difference]: Without dead ends: 102 [2023-11-21 22:14:58,514 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 10 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 22:14:58,518 INFO L413 NwaCegarLoop]: 36 mSDtfsCounter, 33 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 45 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-21 22:14:58,519 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 45 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-21 22:14:58,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2023-11-21 22:14:58,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 99. [2023-11-21 22:14:58,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 71 states have (on average 1.380281690140845) internal successors, (98), 95 states have internal predecessors, (98), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-21 22:14:58,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 102 transitions. [2023-11-21 22:14:58,552 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 102 transitions. Word has length 12 [2023-11-21 22:14:58,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:14:58,552 INFO L495 AbstractCegarLoop]: Abstraction has 99 states and 102 transitions. [2023-11-21 22:14:58,553 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:14:58,553 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 102 transitions. [2023-11-21 22:14:58,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-11-21 22:14:58,554 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:14:58,555 INFO L195 NwaCegarLoop]: trace histogram [1, 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 22:14:58,583 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_898602a8-c5ca-4cde-bf37-f466a8e37161/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-21 22:14:58,770 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_898602a8-c5ca-4cde-bf37-f466a8e37161/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:14:58,771 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2023-11-21 22:14:58,771 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:14:58,772 INFO L85 PathProgramCache]: Analyzing trace with hash -986925189, now seen corresponding path program 1 times [2023-11-21 22:14:58,772 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:14:58,772 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [75235697] [2023-11-21 22:14:58,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:14:58,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:14:58,783 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-21 22:14:58,783 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1207065662] [2023-11-21 22:14:58,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:14:58,784 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:14:58,784 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_898602a8-c5ca-4cde-bf37-f466a8e37161/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:14:58,785 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_898602a8-c5ca-4cde-bf37-f466a8e37161/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 22:14:58,798 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_898602a8-c5ca-4cde-bf37-f466a8e37161/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-21 22:14:58,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:14:58,853 INFO L262 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-21 22:14:58,855 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:14:58,968 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:14:58,968 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 22:14:58,968 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:14:58,969 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [75235697] [2023-11-21 22:14:58,970 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-21 22:14:58,970 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1207065662] [2023-11-21 22:14:58,972 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1207065662] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:14:58,973 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:14:58,974 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:14:58,974 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1634234702] [2023-11-21 22:14:58,974 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:14:58,975 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:14:58,975 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:14:58,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:14:58,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:14:58,977 INFO L87 Difference]: Start difference. First operand 99 states and 102 transitions. Second operand has 3 states, 2 states have (on average 11.5) internal successors, (23), 3 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-21 22:14:58,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:14:58,995 INFO L93 Difference]: Finished difference Result 99 states and 102 transitions. [2023-11-21 22:14:58,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:14:58,995 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 11.5) internal successors, (23), 3 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 25 [2023-11-21 22:14:58,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:14:58,997 INFO L225 Difference]: With dead ends: 99 [2023-11-21 22:14:58,997 INFO L226 Difference]: Without dead ends: 98 [2023-11-21 22:14:58,997 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 22:14:58,998 INFO L413 NwaCegarLoop]: 67 mSDtfsCounter, 49 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 68 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-21 22:14:58,999 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 68 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-21 22:14:59,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2023-11-21 22:14:59,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 98. [2023-11-21 22:14:59,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 71 states have (on average 1.352112676056338) internal successors, (96), 94 states have internal predecessors, (96), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-21 22:14:59,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 100 transitions. [2023-11-21 22:14:59,006 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 100 transitions. Word has length 25 [2023-11-21 22:14:59,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:14:59,007 INFO L495 AbstractCegarLoop]: Abstraction has 98 states and 100 transitions. [2023-11-21 22:14:59,008 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 11.5) internal successors, (23), 3 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-21 22:14:59,008 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 100 transitions. [2023-11-21 22:14:59,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-11-21 22:14:59,009 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:14:59,009 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 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 22:14:59,041 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_898602a8-c5ca-4cde-bf37-f466a8e37161/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-21 22:14:59,229 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_898602a8-c5ca-4cde-bf37-f466a8e37161/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2023-11-21 22:14:59,230 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2023-11-21 22:14:59,230 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:14:59,230 INFO L85 PathProgramCache]: Analyzing trace with hash -529909700, now seen corresponding path program 1 times [2023-11-21 22:14:59,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:14:59,231 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [894891154] [2023-11-21 22:14:59,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:14:59,231 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:14:59,242 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-21 22:14:59,242 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [408562704] [2023-11-21 22:14:59,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:14:59,242 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:14:59,243 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_898602a8-c5ca-4cde-bf37-f466a8e37161/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:14:59,244 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_898602a8-c5ca-4cde-bf37-f466a8e37161/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 22:14:59,270 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_898602a8-c5ca-4cde-bf37-f466a8e37161/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-21 22:14:59,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:14:59,296 INFO L262 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-21 22:14:59,298 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:14:59,366 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:14:59,366 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 22:14:59,366 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:14:59,367 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [894891154] [2023-11-21 22:14:59,367 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-21 22:14:59,367 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [408562704] [2023-11-21 22:14:59,367 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [408562704] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:14:59,367 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:14:59,368 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:14:59,368 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1203323073] [2023-11-21 22:14:59,372 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:14:59,373 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:14:59,374 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:14:59,375 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:14:59,375 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:14:59,375 INFO L87 Difference]: Start difference. First operand 98 states and 100 transitions. Second operand has 3 states, 2 states have (on average 12.0) internal successors, (24), 3 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-21 22:14:59,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:14:59,395 INFO L93 Difference]: Finished difference Result 99 states and 100 transitions. [2023-11-21 22:14:59,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:14:59,396 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 12.0) internal successors, (24), 3 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 26 [2023-11-21 22:14:59,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:14:59,398 INFO L225 Difference]: With dead ends: 99 [2023-11-21 22:14:59,399 INFO L226 Difference]: Without dead ends: 98 [2023-11-21 22:14:59,399 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 22:14:59,400 INFO L413 NwaCegarLoop]: 69 mSDtfsCounter, 0 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 136 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-21 22:14:59,401 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 136 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-21 22:14:59,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2023-11-21 22:14:59,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 98. [2023-11-21 22:14:59,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 71 states have (on average 1.3380281690140845) internal successors, (95), 94 states have internal predecessors, (95), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-21 22:14:59,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 99 transitions. [2023-11-21 22:14:59,419 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 99 transitions. Word has length 26 [2023-11-21 22:14:59,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:14:59,420 INFO L495 AbstractCegarLoop]: Abstraction has 98 states and 99 transitions. [2023-11-21 22:14:59,420 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 12.0) internal successors, (24), 3 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-21 22:14:59,420 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 99 transitions. [2023-11-21 22:14:59,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-11-21 22:14:59,421 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:14:59,421 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 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 22:14:59,436 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_898602a8-c5ca-4cde-bf37-f466a8e37161/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-21 22:14:59,624 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_898602a8-c5ca-4cde-bf37-f466a8e37161/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2023-11-21 22:14:59,625 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2023-11-21 22:14:59,625 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:14:59,625 INFO L85 PathProgramCache]: Analyzing trace with hash -1274703744, now seen corresponding path program 1 times [2023-11-21 22:14:59,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:14:59,626 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [915520591] [2023-11-21 22:14:59,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:14:59,626 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:14:59,636 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-21 22:14:59,636 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [707662309] [2023-11-21 22:14:59,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:14:59,637 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:14:59,637 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_898602a8-c5ca-4cde-bf37-f466a8e37161/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:14:59,638 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_898602a8-c5ca-4cde-bf37-f466a8e37161/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 22:14:59,655 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_898602a8-c5ca-4cde-bf37-f466a8e37161/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-21 22:14:59,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:14:59,689 INFO L262 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-21 22:14:59,691 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:14:59,747 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:14:59,747 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 22:14:59,748 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:14:59,748 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [915520591] [2023-11-21 22:14:59,748 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-21 22:14:59,748 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [707662309] [2023-11-21 22:14:59,748 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [707662309] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:14:59,749 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:14:59,749 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-21 22:14:59,749 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [659553031] [2023-11-21 22:14:59,749 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:14:59,750 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-21 22:14:59,750 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:14:59,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-21 22:14:59,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-21 22:14:59,751 INFO L87 Difference]: Start difference. First operand 98 states and 99 transitions. Second operand has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-21 22:14:59,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:14:59,963 INFO L93 Difference]: Finished difference Result 170 states and 172 transitions. [2023-11-21 22:14:59,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-21 22:14:59,964 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 30 [2023-11-21 22:14:59,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:14:59,965 INFO L225 Difference]: With dead ends: 170 [2023-11-21 22:14:59,965 INFO L226 Difference]: Without dead ends: 156 [2023-11-21 22:14:59,966 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-21 22:14:59,967 INFO L413 NwaCegarLoop]: 36 mSDtfsCounter, 54 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 186 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 64 SdHoareTripleChecker+Invalid, 199 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 186 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-21 22:14:59,967 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 64 Invalid, 199 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 186 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-21 22:14:59,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2023-11-21 22:14:59,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 141. [2023-11-21 22:14:59,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 141 states, 113 states have (on average 1.2920353982300885) internal successors, (146), 136 states have internal predecessors, (146), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-21 22:14:59,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 152 transitions. [2023-11-21 22:14:59,981 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 152 transitions. Word has length 30 [2023-11-21 22:14:59,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:14:59,982 INFO L495 AbstractCegarLoop]: Abstraction has 141 states and 152 transitions. [2023-11-21 22:14:59,982 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-21 22:14:59,982 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 152 transitions. [2023-11-21 22:14:59,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-21 22:14:59,984 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:14:59,985 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 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 22:15:00,011 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_898602a8-c5ca-4cde-bf37-f466a8e37161/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-21 22:15:00,198 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_898602a8-c5ca-4cde-bf37-f466a8e37161/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2023-11-21 22:15:00,199 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2023-11-21 22:15:00,199 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:15:00,199 INFO L85 PathProgramCache]: Analyzing trace with hash -924615518, now seen corresponding path program 1 times [2023-11-21 22:15:00,199 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:15:00,199 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [633126712] [2023-11-21 22:15:00,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:15:00,200 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:15:00,210 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-21 22:15:00,210 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1682125596] [2023-11-21 22:15:00,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:15:00,210 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:15:00,211 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_898602a8-c5ca-4cde-bf37-f466a8e37161/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:15:00,212 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_898602a8-c5ca-4cde-bf37-f466a8e37161/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 22:15:00,217 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_898602a8-c5ca-4cde-bf37-f466a8e37161/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-21 22:15:00,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:00,275 INFO L262 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-21 22:15:00,277 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:15:00,344 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:15:00,345 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 22:15:00,345 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:15:00,345 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [633126712] [2023-11-21 22:15:00,345 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-21 22:15:00,345 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1682125596] [2023-11-21 22:15:00,345 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1682125596] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:15:00,345 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:15:00,346 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-21 22:15:00,346 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1757559170] [2023-11-21 22:15:00,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:15:00,346 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-21 22:15:00,347 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:15:00,347 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-21 22:15:00,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-21 22:15:00,347 INFO L87 Difference]: Start difference. First operand 141 states and 152 transitions. Second operand has 4 states, 3 states have (on average 10.0) internal successors, (30), 4 states have internal predecessors, (30), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-21 22:15:00,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:15:00,413 INFO L93 Difference]: Finished difference Result 142 states and 152 transitions. [2023-11-21 22:15:00,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-21 22:15:00,414 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 10.0) internal successors, (30), 4 states have internal predecessors, (30), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 32 [2023-11-21 22:15:00,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:15:00,415 INFO L225 Difference]: With dead ends: 142 [2023-11-21 22:15:00,415 INFO L226 Difference]: Without dead ends: 141 [2023-11-21 22:15:00,416 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 29 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 22:15:00,416 INFO L413 NwaCegarLoop]: 50 mSDtfsCounter, 23 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 96 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-21 22:15:00,417 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 96 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-21 22:15:00,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2023-11-21 22:15:00,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 141. [2023-11-21 22:15:00,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 141 states, 113 states have (on average 1.2831858407079646) internal successors, (145), 136 states have internal predecessors, (145), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-21 22:15:00,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 151 transitions. [2023-11-21 22:15:00,425 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 151 transitions. Word has length 32 [2023-11-21 22:15:00,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:15:00,425 INFO L495 AbstractCegarLoop]: Abstraction has 141 states and 151 transitions. [2023-11-21 22:15:00,426 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 10.0) internal successors, (30), 4 states have internal predecessors, (30), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-21 22:15:00,426 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 151 transitions. [2023-11-21 22:15:00,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2023-11-21 22:15:00,427 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:15:00,427 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, 1] [2023-11-21 22:15:00,447 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_898602a8-c5ca-4cde-bf37-f466a8e37161/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-11-21 22:15:00,638 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_898602a8-c5ca-4cde-bf37-f466a8e37161/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2023-11-21 22:15:00,639 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2023-11-21 22:15:00,639 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:15:00,639 INFO L85 PathProgramCache]: Analyzing trace with hash -1595586711, now seen corresponding path program 1 times [2023-11-21 22:15:00,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:15:00,640 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1569507577] [2023-11-21 22:15:00,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:15:00,640 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:15:00,650 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-21 22:15:00,651 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [710836184] [2023-11-21 22:15:00,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:15:00,651 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:15:00,651 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_898602a8-c5ca-4cde-bf37-f466a8e37161/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:15:00,652 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_898602a8-c5ca-4cde-bf37-f466a8e37161/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 22:15:00,657 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_898602a8-c5ca-4cde-bf37-f466a8e37161/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-21 22:15:00,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:00,702 INFO L262 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-21 22:15:00,705 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:15:00,881 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:15:00,882 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-21 22:15:01,049 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:15:01,049 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:15:01,049 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1569507577] [2023-11-21 22:15:01,049 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-21 22:15:01,049 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [710836184] [2023-11-21 22:15:01,050 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [710836184] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-21 22:15:01,050 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-21 22:15:01,050 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2023-11-21 22:15:01,050 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1627267044] [2023-11-21 22:15:01,050 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-21 22:15:01,051 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-21 22:15:01,051 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:15:01,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-21 22:15:01,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-21 22:15:01,052 INFO L87 Difference]: Start difference. First operand 141 states and 151 transitions. Second operand has 8 states, 7 states have (on average 9.285714285714286) internal successors, (65), 8 states have internal predecessors, (65), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-21 22:15:01,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:15:01,434 INFO L93 Difference]: Finished difference Result 163 states and 167 transitions. [2023-11-21 22:15:01,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-21 22:15:01,437 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 9.285714285714286) internal successors, (65), 8 states have internal predecessors, (65), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 35 [2023-11-21 22:15:01,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:15:01,438 INFO L225 Difference]: With dead ends: 163 [2023-11-21 22:15:01,438 INFO L226 Difference]: Without dead ends: 159 [2023-11-21 22:15:01,439 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2023-11-21 22:15:01,440 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 188 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 367 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 189 SdHoareTripleChecker+Valid, 92 SdHoareTripleChecker+Invalid, 376 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 367 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-21 22:15:01,440 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [189 Valid, 92 Invalid, 376 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 367 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-21 22:15:01,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states. [2023-11-21 22:15:01,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 148. [2023-11-21 22:15:01,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148 states, 121 states have (on average 1.2396694214876034) internal successors, (150), 143 states have internal predecessors, (150), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-21 22:15:01,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 156 transitions. [2023-11-21 22:15:01,452 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 156 transitions. Word has length 35 [2023-11-21 22:15:01,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:15:01,452 INFO L495 AbstractCegarLoop]: Abstraction has 148 states and 156 transitions. [2023-11-21 22:15:01,452 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 9.285714285714286) internal successors, (65), 8 states have internal predecessors, (65), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-21 22:15:01,453 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 156 transitions. [2023-11-21 22:15:01,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2023-11-21 22:15:01,456 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:15:01,456 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, 1] [2023-11-21 22:15:01,477 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_898602a8-c5ca-4cde-bf37-f466a8e37161/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-11-21 22:15:01,677 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_898602a8-c5ca-4cde-bf37-f466a8e37161/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:15:01,677 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2023-11-21 22:15:01,678 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:15:01,678 INFO L85 PathProgramCache]: Analyzing trace with hash 1127499249, now seen corresponding path program 1 times [2023-11-21 22:15:01,678 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:15:01,678 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [942777855] [2023-11-21 22:15:01,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:15:01,679 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:15:01,690 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-21 22:15:01,691 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1802317175] [2023-11-21 22:15:01,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:15:01,691 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:15:01,691 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_898602a8-c5ca-4cde-bf37-f466a8e37161/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:15:01,692 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_898602a8-c5ca-4cde-bf37-f466a8e37161/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 22:15:01,710 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_898602a8-c5ca-4cde-bf37-f466a8e37161/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-21 22:15:01,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:01,747 INFO L262 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-21 22:15:01,750 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:15:01,947 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:15:01,948 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-21 22:15:02,123 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:15:02,124 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:15:02,124 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [942777855] [2023-11-21 22:15:02,124 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-21 22:15:02,124 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1802317175] [2023-11-21 22:15:02,124 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1802317175] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-21 22:15:02,125 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-21 22:15:02,125 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2023-11-21 22:15:02,126 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [954104573] [2023-11-21 22:15:02,126 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-21 22:15:02,128 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-21 22:15:02,128 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:15:02,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-21 22:15:02,129 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2023-11-21 22:15:02,129 INFO L87 Difference]: Start difference. First operand 148 states and 156 transitions. Second operand has 8 states, 7 states have (on average 11.571428571428571) internal successors, (81), 8 states have internal predecessors, (81), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-21 22:15:02,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:15:02,529 INFO L93 Difference]: Finished difference Result 167 states and 175 transitions. [2023-11-21 22:15:02,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-21 22:15:02,529 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 11.571428571428571) internal successors, (81), 8 states have internal predecessors, (81), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 43 [2023-11-21 22:15:02,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:15:02,531 INFO L225 Difference]: With dead ends: 167 [2023-11-21 22:15:02,531 INFO L226 Difference]: Without dead ends: 139 [2023-11-21 22:15:02,531 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2023-11-21 22:15:02,532 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 117 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 343 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 55 SdHoareTripleChecker+Invalid, 364 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 343 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-21 22:15:02,532 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [119 Valid, 55 Invalid, 364 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 343 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-21 22:15:02,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2023-11-21 22:15:02,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 133. [2023-11-21 22:15:02,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 133 states, 111 states have (on average 1.2162162162162162) internal successors, (135), 128 states have internal predecessors, (135), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-21 22:15:02,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 141 transitions. [2023-11-21 22:15:02,544 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 141 transitions. Word has length 43 [2023-11-21 22:15:02,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:15:02,544 INFO L495 AbstractCegarLoop]: Abstraction has 133 states and 141 transitions. [2023-11-21 22:15:02,545 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 11.571428571428571) internal successors, (81), 8 states have internal predecessors, (81), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-21 22:15:02,545 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 141 transitions. [2023-11-21 22:15:02,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-11-21 22:15:02,552 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:15:02,553 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:15:02,578 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_898602a8-c5ca-4cde-bf37-f466a8e37161/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-11-21 22:15:02,766 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_898602a8-c5ca-4cde-bf37-f466a8e37161/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:15:02,767 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2023-11-21 22:15:02,767 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:15:02,767 INFO L85 PathProgramCache]: Analyzing trace with hash 287980604, now seen corresponding path program 1 times [2023-11-21 22:15:02,767 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:15:02,767 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [152479643] [2023-11-21 22:15:02,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:15:02,768 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:15:02,780 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-21 22:15:02,780 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1310283583] [2023-11-21 22:15:02,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:15:02,780 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:15:02,780 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_898602a8-c5ca-4cde-bf37-f466a8e37161/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:15:02,781 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_898602a8-c5ca-4cde-bf37-f466a8e37161/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 22:15:02,807 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_898602a8-c5ca-4cde-bf37-f466a8e37161/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-21 22:15:02,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:02,837 INFO L262 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-21 22:15:02,839 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:15:02,941 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-21 22:15:02,941 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-21 22:15:03,027 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-21 22:15:03,027 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:15:03,027 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [152479643] [2023-11-21 22:15:03,028 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-21 22:15:03,028 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1310283583] [2023-11-21 22:15:03,028 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1310283583] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-21 22:15:03,028 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-21 22:15:03,028 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2023-11-21 22:15:03,029 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [871686247] [2023-11-21 22:15:03,029 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-21 22:15:03,029 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-21 22:15:03,029 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:15:03,030 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-21 22:15:03,030 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-21 22:15:03,031 INFO L87 Difference]: Start difference. First operand 133 states and 141 transitions. Second operand has 6 states, 5 states have (on average 20.6) internal successors, (103), 6 states have internal predecessors, (103), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-21 22:15:03,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:15:03,079 INFO L93 Difference]: Finished difference Result 232 states and 238 transitions. [2023-11-21 22:15:03,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-21 22:15:03,080 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 20.6) internal successors, (103), 6 states have internal predecessors, (103), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Word has length 57 [2023-11-21 22:15:03,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:15:03,082 INFO L225 Difference]: With dead ends: 232 [2023-11-21 22:15:03,082 INFO L226 Difference]: Without dead ends: 231 [2023-11-21 22:15:03,083 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 108 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 22:15:03,083 INFO L413 NwaCegarLoop]: 58 mSDtfsCounter, 63 mSDsluCounter, 225 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 283 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-21 22:15:03,084 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 283 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-21 22:15:03,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 231 states. [2023-11-21 22:15:03,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 231 to 174. [2023-11-21 22:15:03,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 174 states, 150 states have (on average 1.26) internal successors, (189), 167 states have internal predecessors, (189), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-21 22:15:03,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 199 transitions. [2023-11-21 22:15:03,095 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 199 transitions. Word has length 57 [2023-11-21 22:15:03,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:15:03,095 INFO L495 AbstractCegarLoop]: Abstraction has 174 states and 199 transitions. [2023-11-21 22:15:03,096 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 20.6) internal successors, (103), 6 states have internal predecessors, (103), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-21 22:15:03,096 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 199 transitions. [2023-11-21 22:15:03,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2023-11-21 22:15:03,097 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:15:03,097 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1] [2023-11-21 22:15:03,124 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_898602a8-c5ca-4cde-bf37-f466a8e37161/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-11-21 22:15:03,318 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_898602a8-c5ca-4cde-bf37-f466a8e37161/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2023-11-21 22:15:03,319 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2023-11-21 22:15:03,319 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:15:03,319 INFO L85 PathProgramCache]: Analyzing trace with hash 1330555366, now seen corresponding path program 1 times [2023-11-21 22:15:03,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:15:03,319 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1190621628] [2023-11-21 22:15:03,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:15:03,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:15:03,331 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-21 22:15:03,332 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [583740916] [2023-11-21 22:15:03,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:15:03,332 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:15:03,332 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_898602a8-c5ca-4cde-bf37-f466a8e37161/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:15:03,333 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_898602a8-c5ca-4cde-bf37-f466a8e37161/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 22:15:03,350 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_898602a8-c5ca-4cde-bf37-f466a8e37161/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-11-21 22:15:03,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:03,401 INFO L262 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-21 22:15:03,404 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:15:03,528 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 37 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-21 22:15:03,528 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 22:15:03,528 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:15:03,528 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1190621628] [2023-11-21 22:15:03,528 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-21 22:15:03,528 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [583740916] [2023-11-21 22:15:03,528 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [583740916] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:15:03,529 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:15:03,529 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-21 22:15:03,529 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1749641488] [2023-11-21 22:15:03,529 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:15:03,530 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-21 22:15:03,530 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:15:03,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-21 22:15:03,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-11-21 22:15:03,535 INFO L87 Difference]: Start difference. First operand 174 states and 199 transitions. Second operand has 5 states, 4 states have (on average 15.5) internal successors, (62), 5 states have internal predecessors, (62), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-21 22:15:03,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:15:03,674 INFO L93 Difference]: Finished difference Result 174 states and 199 transitions. [2023-11-21 22:15:03,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-21 22:15:03,675 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 15.5) internal successors, (62), 5 states have internal predecessors, (62), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 67 [2023-11-21 22:15:03,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:15:03,676 INFO L225 Difference]: With dead ends: 174 [2023-11-21 22:15:03,677 INFO L226 Difference]: Without dead ends: 167 [2023-11-21 22:15:03,677 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-11-21 22:15:03,678 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 70 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-21 22:15:03,678 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 50 Invalid, 152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 146 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-21 22:15:03,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167 states. [2023-11-21 22:15:03,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 167. [2023-11-21 22:15:03,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 167 states, 150 states have (on average 1.1666666666666667) internal successors, (175), 160 states have internal predecessors, (175), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-21 22:15:03,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 185 transitions. [2023-11-21 22:15:03,688 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 185 transitions. Word has length 67 [2023-11-21 22:15:03,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:15:03,689 INFO L495 AbstractCegarLoop]: Abstraction has 167 states and 185 transitions. [2023-11-21 22:15:03,689 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 15.5) internal successors, (62), 5 states have internal predecessors, (62), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-21 22:15:03,689 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 185 transitions. [2023-11-21 22:15:03,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2023-11-21 22:15:03,690 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:15:03,690 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1] [2023-11-21 22:15:03,714 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_898602a8-c5ca-4cde-bf37-f466a8e37161/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-11-21 22:15:03,909 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_898602a8-c5ca-4cde-bf37-f466a8e37161/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:15:03,910 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2023-11-21 22:15:03,910 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:15:03,910 INFO L85 PathProgramCache]: Analyzing trace with hash -1702456565, now seen corresponding path program 1 times [2023-11-21 22:15:03,910 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:15:03,911 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [520495670] [2023-11-21 22:15:03,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:15:03,911 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:15:03,923 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-21 22:15:03,923 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1476816784] [2023-11-21 22:15:03,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:15:03,923 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:15:03,923 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_898602a8-c5ca-4cde-bf37-f466a8e37161/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:15:03,924 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_898602a8-c5ca-4cde-bf37-f466a8e37161/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 22:15:03,954 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_898602a8-c5ca-4cde-bf37-f466a8e37161/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-11-21 22:15:03,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:03,989 INFO L262 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-21 22:15:03,996 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:15:04,097 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-21 22:15:04,097 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-21 22:15:04,221 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-21 22:15:04,221 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:15:04,221 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [520495670] [2023-11-21 22:15:04,221 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-21 22:15:04,222 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1476816784] [2023-11-21 22:15:04,222 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1476816784] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-21 22:15:04,222 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-21 22:15:04,222 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2023-11-21 22:15:04,222 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1558915708] [2023-11-21 22:15:04,222 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-21 22:15:04,223 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-21 22:15:04,223 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:15:04,224 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-21 22:15:04,224 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2023-11-21 22:15:04,224 INFO L87 Difference]: Start difference. First operand 167 states and 185 transitions. Second operand has 8 states, 7 states have (on average 17.857142857142858) internal successors, (125), 8 states have internal predecessors, (125), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-21 22:15:04,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:15:04,417 INFO L93 Difference]: Finished difference Result 187 states and 200 transitions. [2023-11-21 22:15:04,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-21 22:15:04,418 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 17.857142857142858) internal successors, (125), 8 states have internal predecessors, (125), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Word has length 68 [2023-11-21 22:15:04,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:15:04,419 INFO L225 Difference]: With dead ends: 187 [2023-11-21 22:15:04,419 INFO L226 Difference]: Without dead ends: 185 [2023-11-21 22:15:04,420 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2023-11-21 22:15:04,420 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 87 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 156 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 156 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-21 22:15:04,421 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [88 Valid, 44 Invalid, 167 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 156 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-21 22:15:04,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2023-11-21 22:15:04,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 166. [2023-11-21 22:15:04,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 166 states, 150 states have (on average 1.14) internal successors, (171), 159 states have internal predecessors, (171), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-21 22:15:04,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 181 transitions. [2023-11-21 22:15:04,432 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 181 transitions. Word has length 68 [2023-11-21 22:15:04,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:15:04,432 INFO L495 AbstractCegarLoop]: Abstraction has 166 states and 181 transitions. [2023-11-21 22:15:04,432 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 17.857142857142858) internal successors, (125), 8 states have internal predecessors, (125), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-21 22:15:04,432 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 181 transitions. [2023-11-21 22:15:04,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2023-11-21 22:15:04,433 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:15:04,433 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, 2, 2, 2, 2, 2, 2, 2, 1, 1] [2023-11-21 22:15:04,459 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_898602a8-c5ca-4cde-bf37-f466a8e37161/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2023-11-21 22:15:04,646 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_898602a8-c5ca-4cde-bf37-f466a8e37161/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:15:04,647 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2023-11-21 22:15:04,647 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:15:04,647 INFO L85 PathProgramCache]: Analyzing trace with hash 321782445, now seen corresponding path program 1 times [2023-11-21 22:15:04,647 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:15:04,647 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [249073598] [2023-11-21 22:15:04,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:15:04,647 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:15:04,658 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-21 22:15:04,659 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [205480433] [2023-11-21 22:15:04,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:15:04,659 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:15:04,659 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_898602a8-c5ca-4cde-bf37-f466a8e37161/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:15:04,660 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_898602a8-c5ca-4cde-bf37-f466a8e37161/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 22:15:04,678 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_898602a8-c5ca-4cde-bf37-f466a8e37161/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-11-21 22:15:04,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:04,717 INFO L262 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-21 22:15:04,719 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:15:04,795 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 37 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-21 22:15:04,795 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-21 22:15:05,045 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:15:05,046 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [249073598] [2023-11-21 22:15:05,046 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-21 22:15:05,046 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [205480433] [2023-11-21 22:15:05,046 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [205480433] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-21 22:15:05,046 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-21 22:15:05,046 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2023-11-21 22:15:05,047 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [115842452] [2023-11-21 22:15:05,047 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-21 22:15:05,047 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-21 22:15:05,048 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:15:05,048 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-21 22:15:05,048 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2023-11-21 22:15:05,049 INFO L87 Difference]: Start difference. First operand 166 states and 181 transitions. Second operand has 5 states, 4 states have (on average 16.0) internal successors, (64), 5 states have internal predecessors, (64), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-21 22:15:05,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:15:05,147 INFO L93 Difference]: Finished difference Result 166 states and 181 transitions. [2023-11-21 22:15:05,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-21 22:15:05,148 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 16.0) internal successors, (64), 5 states have internal predecessors, (64), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 70 [2023-11-21 22:15:05,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:15:05,149 INFO L225 Difference]: With dead ends: 166 [2023-11-21 22:15:05,149 INFO L226 Difference]: Without dead ends: 148 [2023-11-21 22:15:05,150 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2023-11-21 22:15:05,151 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 78 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-21 22:15:05,151 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 15 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-21 22:15:05,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2023-11-21 22:15:05,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 148. [2023-11-21 22:15:05,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148 states, 136 states have (on average 1.0808823529411764) internal successors, (147), 141 states have internal predecessors, (147), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-21 22:15:05,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 157 transitions. [2023-11-21 22:15:05,168 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 157 transitions. Word has length 70 [2023-11-21 22:15:05,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:15:05,168 INFO L495 AbstractCegarLoop]: Abstraction has 148 states and 157 transitions. [2023-11-21 22:15:05,169 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 16.0) internal successors, (64), 5 states have internal predecessors, (64), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-21 22:15:05,169 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 157 transitions. [2023-11-21 22:15:05,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2023-11-21 22:15:05,172 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:15:05,172 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1] [2023-11-21 22:15:05,189 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_898602a8-c5ca-4cde-bf37-f466a8e37161/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2023-11-21 22:15:05,382 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_898602a8-c5ca-4cde-bf37-f466a8e37161/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2023-11-21 22:15:05,383 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2023-11-21 22:15:05,383 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:15:05,383 INFO L85 PathProgramCache]: Analyzing trace with hash -784002944, now seen corresponding path program 1 times [2023-11-21 22:15:05,383 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:15:05,383 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [716795252] [2023-11-21 22:15:05,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:15:05,384 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:15:05,397 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-21 22:15:05,397 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1533376057] [2023-11-21 22:15:05,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:15:05,398 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:15:05,398 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_898602a8-c5ca-4cde-bf37-f466a8e37161/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:15:05,399 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_898602a8-c5ca-4cde-bf37-f466a8e37161/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 22:15:05,418 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_898602a8-c5ca-4cde-bf37-f466a8e37161/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-11-21 22:15:05,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:05,465 INFO L262 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-21 22:15:05,468 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:15:05,601 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 0 proven. 83 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-21 22:15:05,601 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-21 22:15:05,897 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 0 proven. 83 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-21 22:15:05,897 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:15:05,898 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [716795252] [2023-11-21 22:15:05,898 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-21 22:15:05,898 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1533376057] [2023-11-21 22:15:05,898 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1533376057] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-21 22:15:05,898 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-21 22:15:05,898 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2023-11-21 22:15:05,899 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [836521824] [2023-11-21 22:15:05,899 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-21 22:15:05,899 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-21 22:15:05,900 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:15:05,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-21 22:15:05,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2023-11-21 22:15:05,901 INFO L87 Difference]: Start difference. First operand 148 states and 157 transitions. Second operand has 10 states, 9 states have (on average 18.555555555555557) internal successors, (167), 10 states have internal predecessors, (167), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-21 22:15:06,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:15:06,249 INFO L93 Difference]: Finished difference Result 167 states and 173 transitions. [2023-11-21 22:15:06,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-21 22:15:06,250 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 18.555555555555557) internal successors, (167), 10 states have internal predecessors, (167), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Word has length 92 [2023-11-21 22:15:06,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:15:06,252 INFO L225 Difference]: With dead ends: 167 [2023-11-21 22:15:06,252 INFO L226 Difference]: Without dead ends: 165 [2023-11-21 22:15:06,252 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 184 GetRequests, 174 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=79, Unknown=0, NotChecked=0, Total=132 [2023-11-21 22:15:06,253 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 130 mSDsluCounter, 100 mSDsCounter, 0 mSdLazyCounter, 382 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 131 SdHoareTripleChecker+Valid, 134 SdHoareTripleChecker+Invalid, 387 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 382 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-21 22:15:06,253 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [131 Valid, 134 Invalid, 387 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 382 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-21 22:15:06,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2023-11-21 22:15:06,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 147. [2023-11-21 22:15:06,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 147 states, 136 states have (on average 1.0588235294117647) internal successors, (144), 140 states have internal predecessors, (144), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-21 22:15:06,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 154 transitions. [2023-11-21 22:15:06,266 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 154 transitions. Word has length 92 [2023-11-21 22:15:06,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:15:06,267 INFO L495 AbstractCegarLoop]: Abstraction has 147 states and 154 transitions. [2023-11-21 22:15:06,267 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 18.555555555555557) internal successors, (167), 10 states have internal predecessors, (167), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-21 22:15:06,267 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 154 transitions. [2023-11-21 22:15:06,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2023-11-21 22:15:06,268 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:15:06,268 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1] [2023-11-21 22:15:06,294 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_898602a8-c5ca-4cde-bf37-f466a8e37161/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2023-11-21 22:15:06,484 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_898602a8-c5ca-4cde-bf37-f466a8e37161/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2023-11-21 22:15:06,484 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2023-11-21 22:15:06,484 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:15:06,485 INFO L85 PathProgramCache]: Analyzing trace with hash -1807549278, now seen corresponding path program 1 times [2023-11-21 22:15:06,485 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:15:06,485 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1333165768] [2023-11-21 22:15:06,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:15:06,485 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:15:06,506 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-21 22:15:06,506 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1423110303] [2023-11-21 22:15:06,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:15:06,506 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:15:06,507 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_898602a8-c5ca-4cde-bf37-f466a8e37161/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:15:06,507 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_898602a8-c5ca-4cde-bf37-f466a8e37161/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 22:15:06,512 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_898602a8-c5ca-4cde-bf37-f466a8e37161/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-11-21 22:15:06,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:06,578 INFO L262 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 14 conjunts are in the unsatisfiable core [2023-11-21 22:15:06,580 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:15:06,749 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 2 proven. 87 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-21 22:15:06,749 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-21 22:15:10,849 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse0 (+ |c_ULTIMATE.start_main_~y~0#1| (* |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| 2) (* |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| 3)))) (or (not (= (mod .cse0 6) 0)) (< (+ (* |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1|) (* |c_ULTIMATE.start_main_~y~0#1| 2) (div .cse0 6)) 9223372036854775807))) is different from false