/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Overflow-32bit-Automizer_Default.epf -i ../sv-benchmarks/c/ldv-memsafety/memleaks_test12-1.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-15 21:26:28,930 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-15 21:26:28,933 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-15 21:26:28,976 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-15 21:26:28,976 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-15 21:26:28,978 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-15 21:26:28,980 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-15 21:26:28,983 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-15 21:26:28,993 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-15 21:26:28,994 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-15 21:26:28,996 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-15 21:26:28,997 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-15 21:26:28,998 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-15 21:26:28,999 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-15 21:26:29,000 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-15 21:26:29,001 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-15 21:26:29,003 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-15 21:26:29,004 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-15 21:26:29,006 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-15 21:26:29,008 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-15 21:26:29,010 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-15 21:26:29,012 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-15 21:26:29,013 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-15 21:26:29,014 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-15 21:26:29,019 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-10-15 21:26:29,029 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-15 21:26:29,031 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-15 21:26:29,032 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-15 21:26:29,033 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Overflow-32bit-Automizer_Default.epf [2022-10-15 21:26:29,082 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-15 21:26:29,082 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-15 21:26:29,084 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-15 21:26:29,084 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-15 21:26:29,085 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-15 21:26:29,087 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-15 21:26:29,088 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-15 21:26:29,088 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-15 21:26:29,089 INFO L138 SettingsManager]: * Use SBE=true [2022-10-15 21:26:29,089 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-15 21:26:29,089 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-15 21:26:29,089 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-15 21:26:29,090 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-15 21:26:29,092 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-15 21:26:29,092 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-15 21:26:29,092 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-15 21:26:29,092 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-15 21:26:29,093 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-15 21:26:29,093 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-15 21:26:29,093 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-15 21:26:29,093 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-15 21:26:29,094 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-15 21:26:29,094 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-15 21:26:29,094 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-15 21:26:29,094 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-15 21:26:29,095 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-15 21:26:29,095 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 21:26:29,095 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-15 21:26:29,096 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-15 21:26:29,097 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-15 21:26:29,097 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-15 21:26:29,097 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-15 21:26:29,098 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-15 21:26:29,098 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-15 21:26:29,505 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-15 21:26:29,534 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-15 21:26:29,539 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-15 21:26:29,540 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-15 21:26:29,541 INFO L275 PluginConnector]: CDTParser initialized [2022-10-15 21:26:29,543 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-memsafety/memleaks_test12-1.i [2022-10-15 21:26:29,631 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/63675b455/2b4bf983455e47e78e8cf71cb2e495b5/FLAG9a0b2c538 [2022-10-15 21:26:30,386 INFO L306 CDTParser]: Found 1 translation units. [2022-10-15 21:26:30,386 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-memsafety/memleaks_test12-1.i [2022-10-15 21:26:30,425 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/63675b455/2b4bf983455e47e78e8cf71cb2e495b5/FLAG9a0b2c538 [2022-10-15 21:26:30,634 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/63675b455/2b4bf983455e47e78e8cf71cb2e495b5 [2022-10-15 21:26:30,640 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-15 21:26:30,647 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-15 21:26:30,652 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-15 21:26:30,652 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-15 21:26:30,658 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-15 21:26:30,659 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 09:26:30" (1/1) ... [2022-10-15 21:26:30,662 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6617a66f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:26:30, skipping insertion in model container [2022-10-15 21:26:30,662 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 09:26:30" (1/1) ... [2022-10-15 21:26:30,672 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-15 21:26:30,761 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-15 21:26:31,327 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 21:26:31,343 INFO L203 MainTranslator]: Completed pre-run [2022-10-15 21:26:31,415 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 21:26:31,465 INFO L208 MainTranslator]: Completed translation [2022-10-15 21:26:31,466 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:26:31 WrapperNode [2022-10-15 21:26:31,466 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-15 21:26:31,467 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-15 21:26:31,468 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-15 21:26:31,468 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-15 21:26:31,476 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:26:31" (1/1) ... [2022-10-15 21:26:31,522 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:26:31" (1/1) ... [2022-10-15 21:26:31,588 INFO L138 Inliner]: procedures = 174, calls = 145, calls flagged for inlining = 33, calls inlined = 20, statements flattened = 319 [2022-10-15 21:26:31,588 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-15 21:26:31,589 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-15 21:26:31,589 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-15 21:26:31,591 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-15 21:26:31,602 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:26:31" (1/1) ... [2022-10-15 21:26:31,603 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:26:31" (1/1) ... [2022-10-15 21:26:31,625 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:26:31" (1/1) ... [2022-10-15 21:26:31,626 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:26:31" (1/1) ... [2022-10-15 21:26:31,684 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:26:31" (1/1) ... [2022-10-15 21:26:31,700 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:26:31" (1/1) ... [2022-10-15 21:26:31,723 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:26:31" (1/1) ... [2022-10-15 21:26:31,726 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:26:31" (1/1) ... [2022-10-15 21:26:31,739 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-15 21:26:31,745 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-15 21:26:31,745 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-15 21:26:31,746 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-15 21:26:31,747 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:26:31" (1/1) ... [2022-10-15 21:26:31,754 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 21:26:31,771 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 21:26:31,785 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-15 21:26:31,788 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-15 21:26:31,844 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-10-15 21:26:31,844 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-10-15 21:26:31,844 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-10-15 21:26:31,844 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-15 21:26:31,845 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-10-15 21:26:31,845 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-10-15 21:26:31,845 INFO L130 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2022-10-15 21:26:31,845 INFO L138 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2022-10-15 21:26:31,845 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2022-10-15 21:26:31,845 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2022-10-15 21:26:31,846 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-10-15 21:26:31,846 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-10-15 21:26:31,846 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-15 21:26:31,846 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-10-15 21:26:31,846 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-15 21:26:31,846 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_free [2022-10-15 21:26:31,846 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_free [2022-10-15 21:26:31,847 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-15 21:26:31,847 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-10-15 21:26:31,847 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-10-15 21:26:31,847 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-15 21:26:31,847 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-10-15 21:26:31,847 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-15 21:26:31,848 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-10-15 21:26:31,848 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-15 21:26:31,848 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-15 21:26:32,080 INFO L235 CfgBuilder]: Building ICFG [2022-10-15 21:26:32,083 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-15 21:26:32,782 INFO L276 CfgBuilder]: Performing block encoding [2022-10-15 21:26:32,807 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-15 21:26:32,807 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-10-15 21:26:32,811 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 09:26:32 BoogieIcfgContainer [2022-10-15 21:26:32,811 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-15 21:26:32,820 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-15 21:26:32,820 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-15 21:26:32,829 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-15 21:26:32,830 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 09:26:30" (1/3) ... [2022-10-15 21:26:32,834 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c092f2a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 09:26:32, skipping insertion in model container [2022-10-15 21:26:32,836 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:26:31" (2/3) ... [2022-10-15 21:26:32,836 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c092f2a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 09:26:32, skipping insertion in model container [2022-10-15 21:26:32,837 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 09:26:32" (3/3) ... [2022-10-15 21:26:32,838 INFO L112 eAbstractionObserver]: Analyzing ICFG memleaks_test12-1.i [2022-10-15 21:26:32,864 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-15 21:26:32,864 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-10-15 21:26:32,941 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-15 21:26:32,950 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=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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;@41cd9e1c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-15 21:26:32,951 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-10-15 21:26:32,956 INFO L276 IsEmpty]: Start isEmpty. Operand has 108 states, 85 states have (on average 1.3411764705882352) internal successors, (114), 89 states have internal predecessors, (114), 15 states have call successors, (15), 5 states have call predecessors, (15), 5 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2022-10-15 21:26:32,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-10-15 21:26:32,971 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:26:32,971 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:26:32,972 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-10-15 21:26:32,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:26:32,979 INFO L85 PathProgramCache]: Analyzing trace with hash -1953410613, now seen corresponding path program 1 times [2022-10-15 21:26:32,990 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:26:32,990 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1273163984] [2022-10-15 21:26:32,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:26:32,991 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:26:33,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:26:33,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-15 21:26:33,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:26:33,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-10-15 21:26:33,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:26:33,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-10-15 21:26:33,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:26:33,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-10-15 21:26:33,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:26:33,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-10-15 21:26:33,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:26:33,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-10-15 21:26:33,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:26:33,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-10-15 21:26:33,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:26:33,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-10-15 21:26:33,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:26:33,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-10-15 21:26:33,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:26:33,968 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 12 proven. 2 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2022-10-15 21:26:33,968 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:26:33,969 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1273163984] [2022-10-15 21:26:33,970 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1273163984] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 21:26:33,970 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [602324188] [2022-10-15 21:26:33,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:26:33,971 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 21:26:33,971 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 21:26:33,973 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-15 21:26:33,977 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-10-15 21:26:34,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:26:34,331 INFO L263 TraceCheckSpWp]: Trace formula consists of 673 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-15 21:26:34,350 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 21:26:34,467 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2022-10-15 21:26:34,468 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-15 21:26:34,468 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [602324188] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:26:34,469 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-15 21:26:34,469 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 9 [2022-10-15 21:26:34,472 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1282853017] [2022-10-15 21:26:34,474 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:26:34,481 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 21:26:34,482 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:26:34,531 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 21:26:34,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-10-15 21:26:34,538 INFO L87 Difference]: Start difference. First operand has 108 states, 85 states have (on average 1.3411764705882352) internal successors, (114), 89 states have internal predecessors, (114), 15 states have call successors, (15), 5 states have call predecessors, (15), 5 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) Second operand has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2022-10-15 21:26:34,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:26:34,658 INFO L93 Difference]: Finished difference Result 293 states and 383 transitions. [2022-10-15 21:26:34,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-15 21:26:34,661 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 75 [2022-10-15 21:26:34,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:26:34,673 INFO L225 Difference]: With dead ends: 293 [2022-10-15 21:26:34,673 INFO L226 Difference]: Without dead ends: 76 [2022-10-15 21:26:34,678 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-10-15 21:26:34,683 INFO L413 NwaCegarLoop]: 219 mSDtfsCounter, 107 mSDsluCounter, 307 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 526 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 21:26:34,684 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [113 Valid, 526 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 21:26:34,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2022-10-15 21:26:34,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 62. [2022-10-15 21:26:34,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 44 states have (on average 1.1590909090909092) internal successors, (51), 46 states have internal predecessors, (51), 12 states have call successors, (12), 4 states have call predecessors, (12), 4 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2022-10-15 21:26:34,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 75 transitions. [2022-10-15 21:26:34,741 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 75 transitions. Word has length 75 [2022-10-15 21:26:34,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:26:34,742 INFO L495 AbstractCegarLoop]: Abstraction has 62 states and 75 transitions. [2022-10-15 21:26:34,742 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2022-10-15 21:26:34,742 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 75 transitions. [2022-10-15 21:26:34,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-10-15 21:26:34,746 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:26:34,746 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:26:34,785 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-10-15 21:26:34,960 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2022-10-15 21:26:34,961 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-10-15 21:26:34,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:26:34,963 INFO L85 PathProgramCache]: Analyzing trace with hash -544805382, now seen corresponding path program 1 times [2022-10-15 21:26:34,963 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:26:34,964 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1016582588] [2022-10-15 21:26:34,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:26:34,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:26:35,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:26:35,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-15 21:26:35,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:26:35,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-10-15 21:26:35,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:26:35,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-10-15 21:26:35,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:26:35,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-10-15 21:26:35,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:26:35,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-10-15 21:26:35,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:26:35,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-10-15 21:26:35,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:26:35,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-10-15 21:26:35,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:26:35,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-10-15 21:26:35,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:26:35,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-10-15 21:26:35,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:26:35,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-10-15 21:26:35,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:26:35,357 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 12 proven. 2 refuted. 0 times theorem prover too weak. 103 trivial. 0 not checked. [2022-10-15 21:26:35,358 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:26:35,358 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1016582588] [2022-10-15 21:26:35,359 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1016582588] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 21:26:35,360 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [530360697] [2022-10-15 21:26:35,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:26:35,361 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 21:26:35,361 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 21:26:35,362 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-15 21:26:35,366 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-10-15 21:26:35,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:26:35,652 INFO L263 TraceCheckSpWp]: Trace formula consists of 712 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-15 21:26:35,662 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 21:26:35,719 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 117 trivial. 0 not checked. [2022-10-15 21:26:35,719 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-15 21:26:35,720 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [530360697] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:26:35,720 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-15 21:26:35,720 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 9 [2022-10-15 21:26:35,720 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1144485979] [2022-10-15 21:26:35,721 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:26:35,722 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 21:26:35,722 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:26:35,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 21:26:35,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-10-15 21:26:35,723 INFO L87 Difference]: Start difference. First operand 62 states and 75 transitions. Second operand has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2022-10-15 21:26:35,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:26:35,781 INFO L93 Difference]: Finished difference Result 104 states and 123 transitions. [2022-10-15 21:26:35,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-15 21:26:35,782 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 82 [2022-10-15 21:26:35,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:26:35,787 INFO L225 Difference]: With dead ends: 104 [2022-10-15 21:26:35,788 INFO L226 Difference]: Without dead ends: 62 [2022-10-15 21:26:35,789 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-10-15 21:26:35,795 INFO L413 NwaCegarLoop]: 74 mSDtfsCounter, 1 mSDsluCounter, 141 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 215 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 21:26:35,796 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 215 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 21:26:35,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2022-10-15 21:26:35,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 62. [2022-10-15 21:26:35,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 44 states have (on average 1.1363636363636365) internal successors, (50), 46 states have internal predecessors, (50), 12 states have call successors, (12), 4 states have call predecessors, (12), 4 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2022-10-15 21:26:35,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 74 transitions. [2022-10-15 21:26:35,822 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 74 transitions. Word has length 82 [2022-10-15 21:26:35,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:26:35,823 INFO L495 AbstractCegarLoop]: Abstraction has 62 states and 74 transitions. [2022-10-15 21:26:35,823 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2022-10-15 21:26:35,823 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 74 transitions. [2022-10-15 21:26:35,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2022-10-15 21:26:35,825 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:26:35,825 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:26:35,866 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-10-15 21:26:36,039 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2022-10-15 21:26:36,040 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-10-15 21:26:36,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:26:36,041 INFO L85 PathProgramCache]: Analyzing trace with hash -1570100034, now seen corresponding path program 1 times [2022-10-15 21:26:36,041 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:26:36,042 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [506275558] [2022-10-15 21:26:36,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:26:36,042 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:26:36,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:26:36,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-15 21:26:36,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:26:36,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-10-15 21:26:36,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:26:36,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-10-15 21:26:36,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:26:36,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-10-15 21:26:36,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:26:36,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-10-15 21:26:36,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:26:36,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-10-15 21:26:36,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:26:36,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-10-15 21:26:36,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:26:36,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-10-15 21:26:36,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:26:36,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-10-15 21:26:36,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:26:36,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-10-15 21:26:36,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:26:36,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-10-15 21:26:36,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:26:36,431 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 12 proven. 2 refuted. 0 times theorem prover too weak. 103 trivial. 0 not checked. [2022-10-15 21:26:36,431 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:26:36,431 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [506275558] [2022-10-15 21:26:36,432 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [506275558] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 21:26:36,432 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [812009030] [2022-10-15 21:26:36,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:26:36,432 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 21:26:36,432 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 21:26:36,434 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-15 21:26:36,455 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-10-15 21:26:36,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:26:36,725 INFO L263 TraceCheckSpWp]: Trace formula consists of 832 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-15 21:26:36,731 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 21:26:36,787 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 117 trivial. 0 not checked. [2022-10-15 21:26:36,787 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-15 21:26:36,788 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [812009030] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:26:36,788 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-15 21:26:36,788 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 9 [2022-10-15 21:26:36,789 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1807602278] [2022-10-15 21:26:36,789 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:26:36,789 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 21:26:36,790 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:26:36,790 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 21:26:36,790 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-10-15 21:26:36,791 INFO L87 Difference]: Start difference. First operand 62 states and 74 transitions. Second operand has 4 states, 3 states have (on average 13.666666666666666) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-10-15 21:26:36,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:26:36,832 INFO L93 Difference]: Finished difference Result 87 states and 105 transitions. [2022-10-15 21:26:36,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-15 21:26:36,832 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 13.666666666666666) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 88 [2022-10-15 21:26:36,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:26:36,834 INFO L225 Difference]: With dead ends: 87 [2022-10-15 21:26:36,834 INFO L226 Difference]: Without dead ends: 86 [2022-10-15 21:26:36,835 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-10-15 21:26:36,837 INFO L413 NwaCegarLoop]: 73 mSDtfsCounter, 6 mSDsluCounter, 140 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 213 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 21:26:36,837 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 213 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 21:26:36,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2022-10-15 21:26:36,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 84. [2022-10-15 21:26:36,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 61 states have (on average 1.1147540983606556) internal successors, (68), 64 states have internal predecessors, (68), 17 states have call successors, (17), 4 states have call predecessors, (17), 4 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2022-10-15 21:26:36,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 102 transitions. [2022-10-15 21:26:36,852 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 102 transitions. Word has length 88 [2022-10-15 21:26:36,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:26:36,852 INFO L495 AbstractCegarLoop]: Abstraction has 84 states and 102 transitions. [2022-10-15 21:26:36,853 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 13.666666666666666) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-10-15 21:26:36,853 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 102 transitions. [2022-10-15 21:26:36,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2022-10-15 21:26:36,854 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:26:36,855 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:26:36,886 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-10-15 21:26:37,069 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 21:26:37,070 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-10-15 21:26:37,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:26:37,071 INFO L85 PathProgramCache]: Analyzing trace with hash -1428460628, now seen corresponding path program 1 times [2022-10-15 21:26:37,072 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:26:37,072 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2020351362] [2022-10-15 21:26:37,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:26:37,073 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:26:37,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:26:37,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-15 21:26:37,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:26:37,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-10-15 21:26:37,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:26:37,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-10-15 21:26:37,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:26:37,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-10-15 21:26:37,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:26:37,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-10-15 21:26:37,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:26:37,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-10-15 21:26:37,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:26:37,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-10-15 21:26:37,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:26:37,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-10-15 21:26:37,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:26:37,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-10-15 21:26:37,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:26:37,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-10-15 21:26:37,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:26:37,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-10-15 21:26:37,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:26:37,514 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 12 proven. 2 refuted. 0 times theorem prover too weak. 103 trivial. 0 not checked. [2022-10-15 21:26:37,514 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:26:37,516 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2020351362] [2022-10-15 21:26:37,517 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2020351362] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 21:26:37,517 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1571827690] [2022-10-15 21:26:37,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:26:37,517 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 21:26:37,522 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 21:26:37,528 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-15 21:26:37,547 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-10-15 21:26:37,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:26:37,819 INFO L263 TraceCheckSpWp]: Trace formula consists of 833 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-15 21:26:37,825 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 21:26:37,901 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 117 trivial. 0 not checked. [2022-10-15 21:26:37,902 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-15 21:26:37,902 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1571827690] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:26:37,902 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-15 21:26:37,902 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 9 [2022-10-15 21:26:37,903 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1281407264] [2022-10-15 21:26:37,903 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:26:37,905 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 21:26:37,905 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:26:37,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 21:26:37,906 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-10-15 21:26:37,906 INFO L87 Difference]: Start difference. First operand 84 states and 102 transitions. Second operand has 4 states, 3 states have (on average 14.0) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-10-15 21:26:37,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:26:37,944 INFO L93 Difference]: Finished difference Result 84 states and 102 transitions. [2022-10-15 21:26:37,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-15 21:26:37,945 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 14.0) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 89 [2022-10-15 21:26:37,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:26:37,950 INFO L225 Difference]: With dead ends: 84 [2022-10-15 21:26:37,950 INFO L226 Difference]: Without dead ends: 83 [2022-10-15 21:26:37,950 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-10-15 21:26:37,955 INFO L413 NwaCegarLoop]: 67 mSDtfsCounter, 5 mSDsluCounter, 113 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 180 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 21:26:37,956 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 180 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 21:26:37,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2022-10-15 21:26:37,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 83. [2022-10-15 21:26:37,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83 states, 61 states have (on average 1.098360655737705) internal successors, (67), 63 states have internal predecessors, (67), 17 states have call successors, (17), 4 states have call predecessors, (17), 4 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2022-10-15 21:26:37,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 101 transitions. [2022-10-15 21:26:37,985 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 101 transitions. Word has length 89 [2022-10-15 21:26:37,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:26:37,986 INFO L495 AbstractCegarLoop]: Abstraction has 83 states and 101 transitions. [2022-10-15 21:26:37,986 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 14.0) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-10-15 21:26:37,986 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 101 transitions. [2022-10-15 21:26:37,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2022-10-15 21:26:37,998 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:26:37,998 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:26:38,039 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-10-15 21:26:38,199 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 21:26:38,200 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-10-15 21:26:38,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:26:38,201 INFO L85 PathProgramCache]: Analyzing trace with hash -1178816842, now seen corresponding path program 1 times [2022-10-15 21:26:38,202 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:26:38,202 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1928282782] [2022-10-15 21:26:38,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:26:38,203 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:26:38,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:26:38,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-15 21:26:38,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:26:38,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-10-15 21:26:38,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:26:38,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-10-15 21:26:38,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:26:38,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-10-15 21:26:38,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:26:38,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-10-15 21:26:38,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:26:38,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-10-15 21:26:38,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:26:38,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-10-15 21:26:38,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:26:38,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-10-15 21:26:38,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:26:38,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-10-15 21:26:38,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:26:38,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-10-15 21:26:38,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:26:38,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-10-15 21:26:38,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:26:38,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-10-15 21:26:38,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:26:38,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-10-15 21:26:38,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:26:38,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-10-15 21:26:38,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:26:38,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-10-15 21:26:38,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:26:38,681 INFO L134 CoverageAnalysis]: Checked inductivity of 219 backedges. 16 proven. 6 refuted. 0 times theorem prover too weak. 197 trivial. 0 not checked. [2022-10-15 21:26:38,682 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:26:38,682 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1928282782] [2022-10-15 21:26:38,684 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1928282782] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 21:26:38,684 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [755653574] [2022-10-15 21:26:38,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:26:38,685 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 21:26:38,685 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 21:26:38,689 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-15 21:26:38,713 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-10-15 21:26:39,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:26:39,061 INFO L263 TraceCheckSpWp]: Trace formula consists of 1133 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-15 21:26:39,071 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 21:26:39,195 INFO L134 CoverageAnalysis]: Checked inductivity of 219 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 198 trivial. 0 not checked. [2022-10-15 21:26:39,195 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 21:26:39,398 INFO L134 CoverageAnalysis]: Checked inductivity of 219 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 198 trivial. 0 not checked. [2022-10-15 21:26:39,399 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [755653574] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 21:26:39,399 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 21:26:39,399 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5, 5] total 15 [2022-10-15 21:26:39,399 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [220228612] [2022-10-15 21:26:39,400 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 21:26:39,401 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-10-15 21:26:39,401 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:26:39,401 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-10-15 21:26:39,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=171, Unknown=0, NotChecked=0, Total=210 [2022-10-15 21:26:39,402 INFO L87 Difference]: Start difference. First operand 83 states and 101 transitions. Second operand has 15 states, 15 states have (on average 8.2) internal successors, (123), 12 states have internal predecessors, (123), 6 states have call successors, (35), 3 states have call predecessors, (35), 2 states have return successors, (28), 7 states have call predecessors, (28), 6 states have call successors, (28) [2022-10-15 21:26:40,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:26:40,590 INFO L93 Difference]: Finished difference Result 325 states and 432 transitions. [2022-10-15 21:26:40,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-10-15 21:26:40,591 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 8.2) internal successors, (123), 12 states have internal predecessors, (123), 6 states have call successors, (35), 3 states have call predecessors, (35), 2 states have return successors, (28), 7 states have call predecessors, (28), 6 states have call successors, (28) Word has length 126 [2022-10-15 21:26:40,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:26:40,596 INFO L225 Difference]: With dead ends: 325 [2022-10-15 21:26:40,596 INFO L226 Difference]: Without dead ends: 269 [2022-10-15 21:26:40,598 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 305 GetRequests, 273 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 196 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=203, Invalid=919, Unknown=0, NotChecked=0, Total=1122 [2022-10-15 21:26:40,599 INFO L413 NwaCegarLoop]: 123 mSDtfsCounter, 131 mSDsluCounter, 376 mSDsCounter, 0 mSdLazyCounter, 853 mSolverCounterSat, 115 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 499 SdHoareTripleChecker+Invalid, 968 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 115 IncrementalHoareTripleChecker+Valid, 853 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-10-15 21:26:40,599 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [141 Valid, 499 Invalid, 968 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [115 Valid, 853 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-10-15 21:26:40,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 269 states. [2022-10-15 21:26:40,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 269 to 164. [2022-10-15 21:26:40,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 164 states, 126 states have (on average 1.0714285714285714) internal successors, (135), 127 states have internal predecessors, (135), 32 states have call successors, (32), 4 states have call predecessors, (32), 5 states have return successors, (48), 37 states have call predecessors, (48), 32 states have call successors, (48) [2022-10-15 21:26:40,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 215 transitions. [2022-10-15 21:26:40,631 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 215 transitions. Word has length 126 [2022-10-15 21:26:40,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:26:40,632 INFO L495 AbstractCegarLoop]: Abstraction has 164 states and 215 transitions. [2022-10-15 21:26:40,632 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 8.2) internal successors, (123), 12 states have internal predecessors, (123), 6 states have call successors, (35), 3 states have call predecessors, (35), 2 states have return successors, (28), 7 states have call predecessors, (28), 6 states have call successors, (28) [2022-10-15 21:26:40,632 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 215 transitions. [2022-10-15 21:26:40,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2022-10-15 21:26:40,636 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:26:40,636 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 11, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:26:40,677 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-10-15 21:26:40,849 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 21:26:40,850 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-10-15 21:26:40,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:26:40,851 INFO L85 PathProgramCache]: Analyzing trace with hash 583627961, now seen corresponding path program 1 times [2022-10-15 21:26:40,852 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:26:40,852 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1052401364] [2022-10-15 21:26:40,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:26:40,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:26:40,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:26:41,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-15 21:26:41,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:26:41,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-10-15 21:26:41,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:26:41,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-10-15 21:26:41,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:26:41,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-10-15 21:26:41,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:26:41,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-10-15 21:26:41,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:26:41,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-10-15 21:26:41,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:26:41,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-10-15 21:26:41,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:26:41,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-10-15 21:26:41,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:26:41,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-10-15 21:26:41,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:26:41,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-10-15 21:26:41,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:26:41,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-10-15 21:26:41,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:26:41,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-10-15 21:26:41,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:26:41,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-10-15 21:26:41,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:26:41,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-10-15 21:26:41,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:26:41,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-10-15 21:26:41,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:26:41,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-10-15 21:26:41,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:26:41,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-10-15 21:26:41,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:26:41,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2022-10-15 21:26:41,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:26:41,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2022-10-15 21:26:41,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:26:41,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2022-10-15 21:26:41,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:26:41,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2022-10-15 21:26:41,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:26:41,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-10-15 21:26:41,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:26:41,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2022-10-15 21:26:42,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:26:42,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2022-10-15 21:26:42,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:26:42,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2022-10-15 21:26:42,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:26:42,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2022-10-15 21:26:42,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:26:42,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-10-15 21:26:42,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:26:42,041 INFO L134 CoverageAnalysis]: Checked inductivity of 801 backedges. 40 proven. 18 refuted. 0 times theorem prover too weak. 743 trivial. 0 not checked. [2022-10-15 21:26:42,041 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:26:42,041 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1052401364] [2022-10-15 21:26:42,042 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1052401364] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 21:26:42,042 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [143775849] [2022-10-15 21:26:42,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:26:42,042 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 21:26:42,043 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 21:26:42,044 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-15 21:26:42,067 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-10-15 21:26:42,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:26:42,565 INFO L263 TraceCheckSpWp]: Trace formula consists of 2001 conjuncts, 12 conjunts are in the unsatisfiable core [2022-10-15 21:26:42,577 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 21:26:42,884 INFO L134 CoverageAnalysis]: Checked inductivity of 801 backedges. 457 proven. 0 refuted. 0 times theorem prover too weak. 344 trivial. 0 not checked. [2022-10-15 21:26:42,884 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-15 21:26:42,885 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [143775849] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:26:42,885 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-15 21:26:42,885 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 14 [2022-10-15 21:26:42,885 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2027145683] [2022-10-15 21:26:42,886 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:26:42,886 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-15 21:26:42,887 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:26:42,887 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-15 21:26:42,887 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-10-15 21:26:42,888 INFO L87 Difference]: Start difference. First operand 164 states and 215 transitions. Second operand has 7 states, 7 states have (on average 13.0) internal successors, (91), 7 states have internal predecessors, (91), 4 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 4 states have call predecessors, (19), 4 states have call successors, (19) [2022-10-15 21:26:42,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:26:42,983 INFO L93 Difference]: Finished difference Result 181 states and 230 transitions. [2022-10-15 21:26:42,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-15 21:26:42,984 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 7 states have internal predecessors, (91), 4 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 4 states have call predecessors, (19), 4 states have call successors, (19) Word has length 240 [2022-10-15 21:26:42,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:26:42,984 INFO L225 Difference]: With dead ends: 181 [2022-10-15 21:26:42,985 INFO L226 Difference]: Without dead ends: 0 [2022-10-15 21:26:42,986 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 302 GetRequests, 288 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=200, Unknown=0, NotChecked=0, Total=240 [2022-10-15 21:26:42,987 INFO L413 NwaCegarLoop]: 91 mSDtfsCounter, 6 mSDsluCounter, 226 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 317 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 21:26:42,988 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 317 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 21:26:42,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-10-15 21:26:42,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-10-15 21:26:42,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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) [2022-10-15 21:26:42,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-10-15 21:26:42,989 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 240 [2022-10-15 21:26:42,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:26:42,990 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-10-15 21:26:42,990 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 7 states have internal predecessors, (91), 4 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 4 states have call predecessors, (19), 4 states have call successors, (19) [2022-10-15 21:26:42,990 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-10-15 21:26:42,990 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-10-15 21:26:42,993 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-10-15 21:26:42,994 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-10-15 21:26:43,039 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-10-15 21:26:43,207 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 21:26:43,211 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-10-15 21:26:43,557 INFO L902 garLoopResultBuilder]: At program point L-1-1(line -1) the Hoare annotation is: true [2022-10-15 21:26:43,557 INFO L902 garLoopResultBuilder]: At program point L-1-3(line -1) the Hoare annotation is: true [2022-10-15 21:26:43,557 INFO L899 garLoopResultBuilder]: For program point #Ultimate.C_memcpyFINAL(line -1) no Hoare annotation was computed. [2022-10-15 21:26:43,557 INFO L895 garLoopResultBuilder]: At program point #Ultimate.C_memcpyENTRY(line -1) the Hoare annotation is: (and (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|)) [2022-10-15 21:26:43,558 INFO L899 garLoopResultBuilder]: For program point #Ultimate.C_memcpyEXIT(line -1) no Hoare annotation was computed. [2022-10-15 21:26:43,558 INFO L899 garLoopResultBuilder]: For program point L592(lines 592 595) no Hoare annotation was computed. [2022-10-15 21:26:43,558 INFO L899 garLoopResultBuilder]: For program point L592-2(lines 591 596) no Hoare annotation was computed. [2022-10-15 21:26:43,558 INFO L899 garLoopResultBuilder]: For program point ldv_msg_freeEXIT(lines 591 596) no Hoare annotation was computed. [2022-10-15 21:26:43,558 INFO L902 garLoopResultBuilder]: At program point ldv_msg_freeENTRY(lines 591 596) the Hoare annotation is: true [2022-10-15 21:26:43,558 INFO L895 garLoopResultBuilder]: At program point LDV_INIT_LIST_HEADENTRY(lines 538 542) the Hoare annotation is: (and (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|)) [2022-10-15 21:26:43,559 INFO L899 garLoopResultBuilder]: For program point LDV_INIT_LIST_HEADFINAL(lines 538 542) no Hoare annotation was computed. [2022-10-15 21:26:43,562 INFO L899 garLoopResultBuilder]: For program point LDV_INIT_LIST_HEADEXIT(lines 538 542) no Hoare annotation was computed. [2022-10-15 21:26:43,562 INFO L895 garLoopResultBuilder]: At program point __ldv_list_addENTRY(lines 543 551) the Hoare annotation is: (and (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|)) [2022-10-15 21:26:43,562 INFO L899 garLoopResultBuilder]: For program point __ldv_list_addFINAL(lines 543 551) no Hoare annotation was computed. [2022-10-15 21:26:43,563 INFO L899 garLoopResultBuilder]: For program point __ldv_list_addEXIT(lines 543 551) no Hoare annotation was computed. [2022-10-15 21:26:43,563 INFO L895 garLoopResultBuilder]: At program point ldv_mallocENTRY(lines 525 531) the Hoare annotation is: (and (= |old(#length)| |#length|) (= |old(#valid)| |#valid|)) [2022-10-15 21:26:43,563 INFO L899 garLoopResultBuilder]: For program point L526(lines 526 530) no Hoare annotation was computed. [2022-10-15 21:26:43,563 INFO L899 garLoopResultBuilder]: For program point ldv_mallocFINAL(lines 525 531) no Hoare annotation was computed. [2022-10-15 21:26:43,563 INFO L899 garLoopResultBuilder]: For program point ldv_mallocEXIT(lines 525 531) no Hoare annotation was computed. [2022-10-15 21:26:43,563 INFO L899 garLoopResultBuilder]: For program point L894(lines 894 896) no Hoare annotation was computed. [2022-10-15 21:26:43,563 INFO L899 garLoopResultBuilder]: For program point L894-2(lines 894 896) no Hoare annotation was computed. [2022-10-15 21:26:43,564 INFO L895 garLoopResultBuilder]: At program point L581(lines 574 582) the Hoare annotation is: (let ((.cse0 (<= |ULTIMATE.start_master_xfer_~num#1| 2))) (or (and (<= |ULTIMATE.start_master_xfer_~i~0#1| 0) (<= 0 |ULTIMATE.start_master_xfer_~i~0#1|) .cse0) (and (<= |ULTIMATE.start_master_xfer_~i~0#1| 1) (<= 1 |ULTIMATE.start_master_xfer_~i~0#1|) .cse0))) [2022-10-15 21:26:43,565 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-10-15 21:26:43,565 INFO L899 garLoopResultBuilder]: For program point L598(lines 598 601) no Hoare annotation was computed. [2022-10-15 21:26:43,565 INFO L899 garLoopResultBuilder]: For program point L565(lines 565 568) no Hoare annotation was computed. [2022-10-15 21:26:43,565 INFO L902 garLoopResultBuilder]: At program point L879(line 879) the Hoare annotation is: true [2022-10-15 21:26:43,565 INFO L899 garLoopResultBuilder]: For program point L879-1(line 879) no Hoare annotation was computed. [2022-10-15 21:26:43,565 INFO L902 garLoopResultBuilder]: At program point L846(line 846) the Hoare annotation is: true [2022-10-15 21:26:43,565 INFO L899 garLoopResultBuilder]: For program point L846-1(line 846) no Hoare annotation was computed. [2022-10-15 21:26:43,566 INFO L895 garLoopResultBuilder]: At program point L797-2(lines 797 805) the Hoare annotation is: (let ((.cse0 (<= |ULTIMATE.start_master_xfer_~num#1| 2))) (or (and .cse0 (< |ULTIMATE.start_master_xfer_~i~0#1| 2147483646) (<= 2 |ULTIMATE.start_master_xfer_~i~0#1|)) (and (<= |ULTIMATE.start_master_xfer_~i~0#1| 0) (<= 0 |ULTIMATE.start_master_xfer_~i~0#1|) .cse0) (and (<= |ULTIMATE.start_master_xfer_~i~0#1| 1) (<= 1 |ULTIMATE.start_master_xfer_~i~0#1|) .cse0))) [2022-10-15 21:26:43,566 INFO L899 garLoopResultBuilder]: For program point L797-3(lines 797 805) no Hoare annotation was computed. [2022-10-15 21:26:43,566 INFO L899 garLoopResultBuilder]: For program point L880(line 880) no Hoare annotation was computed. [2022-10-15 21:26:43,566 INFO L899 garLoopResultBuilder]: For program point L847(line 847) no Hoare annotation was computed. [2022-10-15 21:26:43,566 INFO L902 garLoopResultBuilder]: At program point L814(lines 813 815) the Hoare annotation is: true [2022-10-15 21:26:43,566 INFO L902 garLoopResultBuilder]: At program point L864(lines 841 865) the Hoare annotation is: true [2022-10-15 21:26:43,566 INFO L902 garLoopResultBuilder]: At program point L848(line 848) the Hoare annotation is: true [2022-10-15 21:26:43,567 INFO L899 garLoopResultBuilder]: For program point L848-1(line 848) no Hoare annotation was computed. [2022-10-15 21:26:43,567 INFO L902 garLoopResultBuilder]: At program point L898(lines 875 909) the Hoare annotation is: true [2022-10-15 21:26:43,568 INFO L899 garLoopResultBuilder]: For program point L799(line 799) no Hoare annotation was computed. [2022-10-15 21:26:43,568 INFO L895 garLoopResultBuilder]: At program point L585(line 585) the Hoare annotation is: (let ((.cse0 (<= |ULTIMATE.start_master_xfer_~num#1| 2))) (or (and (<= |ULTIMATE.start_master_xfer_~i~0#1| 0) (<= 0 |ULTIMATE.start_master_xfer_~i~0#1|) .cse0) (and (<= |ULTIMATE.start_master_xfer_~i~0#1| 1) (<= 1 |ULTIMATE.start_master_xfer_~i~0#1|) .cse0))) [2022-10-15 21:26:43,568 INFO L899 garLoopResultBuilder]: For program point L585-1(line 585) no Hoare annotation was computed. [2022-10-15 21:26:43,568 INFO L899 garLoopResultBuilder]: For program point L552(lines 552 556) no Hoare annotation was computed. [2022-10-15 21:26:43,569 INFO L899 garLoopResultBuilder]: For program point L866(lines 866 874) no Hoare annotation was computed. [2022-10-15 21:26:43,569 INFO L899 garLoopResultBuilder]: For program point L833(lines 833 838) no Hoare annotation was computed. [2022-10-15 21:26:43,569 INFO L899 garLoopResultBuilder]: For program point L833-2(lines 833 838) no Hoare annotation was computed. [2022-10-15 21:26:43,569 INFO L895 garLoopResultBuilder]: At program point L602(lines 597 603) the Hoare annotation is: (let ((.cse0 (<= |ULTIMATE.start_master_xfer_~num#1| 2))) (or (<= (+ |ULTIMATE.start_ldv_submit_msg_#res#1| 1) 0) (and (<= |ULTIMATE.start_master_xfer_~i~0#1| 0) (<= 0 |ULTIMATE.start_master_xfer_~i~0#1|) .cse0) (and (<= |ULTIMATE.start_master_xfer_~i~0#1| 1) (<= 1 |ULTIMATE.start_master_xfer_~i~0#1|) .cse0))) [2022-10-15 21:26:43,569 INFO L902 garLoopResultBuilder]: At program point L883(line 883) the Hoare annotation is: true [2022-10-15 21:26:43,569 INFO L899 garLoopResultBuilder]: For program point L883-1(line 883) no Hoare annotation was computed. [2022-10-15 21:26:43,569 INFO L902 garLoopResultBuilder]: At program point L619(lines 617 620) the Hoare annotation is: true [2022-10-15 21:26:43,570 INFO L899 garLoopResultBuilder]: For program point L586(line 586) no Hoare annotation was computed. [2022-10-15 21:26:43,570 INFO L902 garLoopResultBuilder]: At program point L900(lines 875 909) the Hoare annotation is: true [2022-10-15 21:26:43,570 INFO L902 garLoopResultBuilder]: At program point L834(line 834) the Hoare annotation is: true [2022-10-15 21:26:43,570 INFO L899 garLoopResultBuilder]: For program point L801(line 801) no Hoare annotation was computed. [2022-10-15 21:26:43,570 INFO L899 garLoopResultBuilder]: For program point L834-1(line 834) no Hoare annotation was computed. [2022-10-15 21:26:43,570 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-10-15 21:26:43,570 INFO L899 garLoopResultBuilder]: For program point L884(line 884) no Hoare annotation was computed. [2022-10-15 21:26:43,571 INFO L899 garLoopResultBuilder]: For program point L851(line 851) no Hoare annotation was computed. [2022-10-15 21:26:43,571 INFO L895 garLoopResultBuilder]: At program point L587(line 587) the Hoare annotation is: (let ((.cse0 (<= |ULTIMATE.start_master_xfer_~num#1| 2))) (or (and (<= |ULTIMATE.start_master_xfer_~i~0#1| 0) (<= 0 |ULTIMATE.start_master_xfer_~i~0#1|) .cse0) (and (<= |ULTIMATE.start_master_xfer_~i~0#1| 1) (<= 1 |ULTIMATE.start_master_xfer_~i~0#1|) .cse0))) [2022-10-15 21:26:43,571 INFO L899 garLoopResultBuilder]: For program point L587-1(line 587) no Hoare annotation was computed. [2022-10-15 21:26:43,571 INFO L899 garLoopResultBuilder]: For program point L604(lines 604 611) no Hoare annotation was computed. [2022-10-15 21:26:43,571 INFO L902 garLoopResultBuilder]: At program point L852(lines 852 858) the Hoare annotation is: true [2022-10-15 21:26:43,571 INFO L899 garLoopResultBuilder]: For program point L621(lines 621 624) no Hoare annotation was computed. [2022-10-15 21:26:43,571 INFO L902 garLoopResultBuilder]: At program point L902(lines 875 909) the Hoare annotation is: true [2022-10-15 21:26:43,572 INFO L899 garLoopResultBuilder]: For program point L803(line 803) no Hoare annotation was computed. [2022-10-15 21:26:43,572 INFO L902 garLoopResultBuilder]: At program point L803-1(lines 793 812) the Hoare annotation is: true [2022-10-15 21:26:43,572 INFO L902 garLoopResultBuilder]: At program point L886(line 886) the Hoare annotation is: true [2022-10-15 21:26:43,572 INFO L899 garLoopResultBuilder]: For program point L886-1(line 886) no Hoare annotation was computed. [2022-10-15 21:26:43,573 INFO L899 garLoopResultBuilder]: For program point L853(line 853) no Hoare annotation was computed. [2022-10-15 21:26:43,573 INFO L899 garLoopResultBuilder]: For program point L853-2(line 853) no Hoare annotation was computed. [2022-10-15 21:26:43,573 INFO L895 garLoopResultBuilder]: At program point L589(lines 583 590) the Hoare annotation is: (let ((.cse0 (<= |ULTIMATE.start_master_xfer_~num#1| 2))) (or (and (<= |ULTIMATE.start_master_xfer_~i~0#1| 0) (<= 0 |ULTIMATE.start_master_xfer_~i~0#1|) .cse0) (and (<= |ULTIMATE.start_master_xfer_~i~0#1| 1) (<= 1 |ULTIMATE.start_master_xfer_~i~0#1|) .cse0) (<= 3 |ULTIMATE.start_ldv_msg_fill_#res#1|))) [2022-10-15 21:26:43,573 INFO L899 garLoopResultBuilder]: For program point L804(line 804) no Hoare annotation was computed. [2022-10-15 21:26:43,573 INFO L899 garLoopResultBuilder]: For program point L804-1(line 804) no Hoare annotation was computed. [2022-10-15 21:26:43,574 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 804) no Hoare annotation was computed. [2022-10-15 21:26:43,574 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-10-15 21:26:43,574 INFO L899 garLoopResultBuilder]: For program point L887(line 887) no Hoare annotation was computed. [2022-10-15 21:26:43,574 INFO L899 garLoopResultBuilder]: For program point L854(line 854) no Hoare annotation was computed. [2022-10-15 21:26:43,574 INFO L899 garLoopResultBuilder]: For program point L557(lines 557 560) no Hoare annotation was computed. [2022-10-15 21:26:43,576 INFO L902 garLoopResultBuilder]: At program point L904(lines 875 909) the Hoare annotation is: true [2022-10-15 21:26:43,576 INFO L899 garLoopResultBuilder]: For program point L871(lines 871 873) no Hoare annotation was computed. [2022-10-15 21:26:43,576 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 804) no Hoare annotation was computed. [2022-10-15 21:26:43,576 INFO L902 garLoopResultBuilder]: At program point L607-2(lines 607 610) the Hoare annotation is: true [2022-10-15 21:26:43,576 INFO L902 garLoopResultBuilder]: At program point L839(lines 816 840) the Hoare annotation is: true [2022-10-15 21:26:43,577 INFO L899 garLoopResultBuilder]: For program point L856(line 856) no Hoare annotation was computed. [2022-10-15 21:26:43,579 INFO L895 garLoopResultBuilder]: At program point L559(line 559) the Hoare annotation is: (let ((.cse0 (<= |ULTIMATE.start_master_xfer_~num#1| 2))) (or (and (<= |ULTIMATE.start_master_xfer_~i~0#1| 0) (<= 0 |ULTIMATE.start_master_xfer_~i~0#1|) .cse0) (and (<= |ULTIMATE.start_master_xfer_~i~0#1| 1) (<= 1 |ULTIMATE.start_master_xfer_~i~0#1|) .cse0))) [2022-10-15 21:26:43,580 INFO L899 garLoopResultBuilder]: For program point L559-1(line 559) no Hoare annotation was computed. [2022-10-15 21:26:43,580 INFO L902 garLoopResultBuilder]: At program point L906(lines 875 909) the Hoare annotation is: true [2022-10-15 21:26:43,580 INFO L902 garLoopResultBuilder]: At program point L774(lines 772 775) the Hoare annotation is: true [2022-10-15 21:26:43,580 INFO L902 garLoopResultBuilder]: At program point L609(line 609) the Hoare annotation is: true [2022-10-15 21:26:43,581 INFO L895 garLoopResultBuilder]: At program point L576(line 576) the Hoare annotation is: (let ((.cse0 (<= |ULTIMATE.start_master_xfer_~num#1| 2))) (or (and (<= |ULTIMATE.start_master_xfer_~i~0#1| 0) (<= 0 |ULTIMATE.start_master_xfer_~i~0#1|) .cse0) (and (<= |ULTIMATE.start_master_xfer_~i~0#1| 1) (<= 1 |ULTIMATE.start_master_xfer_~i~0#1|) .cse0))) [2022-10-15 21:26:43,582 INFO L899 garLoopResultBuilder]: For program point L609-1(lines 607 610) no Hoare annotation was computed. [2022-10-15 21:26:43,582 INFO L899 garLoopResultBuilder]: For program point L576-1(line 576) no Hoare annotation was computed. [2022-10-15 21:26:43,582 INFO L902 garLoopResultBuilder]: At program point L890(line 890) the Hoare annotation is: true [2022-10-15 21:26:43,582 INFO L899 garLoopResultBuilder]: For program point L890-1(line 890) no Hoare annotation was computed. [2022-10-15 21:26:43,583 INFO L902 garLoopResultBuilder]: At program point L857(lines 841 865) the Hoare annotation is: true [2022-10-15 21:26:43,583 INFO L899 garLoopResultBuilder]: For program point L577(lines 577 580) no Hoare annotation was computed. [2022-10-15 21:26:43,583 INFO L899 garLoopResultBuilder]: For program point L577-1(lines 577 580) no Hoare annotation was computed. [2022-10-15 21:26:43,583 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-10-15 21:26:43,583 INFO L902 garLoopResultBuilder]: At program point L-1-1(line -1) the Hoare annotation is: true [2022-10-15 21:26:43,583 INFO L899 garLoopResultBuilder]: For program point L891(line 891) no Hoare annotation was computed. [2022-10-15 21:26:43,583 INFO L902 garLoopResultBuilder]: At program point L908(lines 875 909) the Hoare annotation is: true [2022-10-15 21:26:43,584 INFO L902 garLoopResultBuilder]: At program point L809(lines 793 812) the Hoare annotation is: true [2022-10-15 21:26:43,584 INFO L899 garLoopResultBuilder]: For program point L776(lines 776 779) no Hoare annotation was computed. [2022-10-15 21:26:43,584 INFO L902 garLoopResultBuilder]: At program point L876(line 876) the Hoare annotation is: true [2022-10-15 21:26:43,584 INFO L899 garLoopResultBuilder]: For program point L876-1(line 876) no Hoare annotation was computed. [2022-10-15 21:26:43,584 INFO L895 garLoopResultBuilder]: At program point L579(line 579) the Hoare annotation is: (let ((.cse0 (<= |ULTIMATE.start_master_xfer_~num#1| 2))) (or (and (<= |ULTIMATE.start_master_xfer_~i~0#1| 0) (<= 0 |ULTIMATE.start_master_xfer_~i~0#1|) .cse0) (and (<= |ULTIMATE.start_master_xfer_~i~0#1| 1) (<= 1 |ULTIMATE.start_master_xfer_~i~0#1|) .cse0))) [2022-10-15 21:26:43,584 INFO L899 garLoopResultBuilder]: For program point L910(lines 910 912) no Hoare annotation was computed. [2022-10-15 21:26:43,584 INFO L899 garLoopResultBuilder]: For program point L877(line 877) no Hoare annotation was computed. [2022-10-15 21:26:43,585 INFO L902 garLoopResultBuilder]: At program point L811(lines 793 812) the Hoare annotation is: true [2022-10-15 21:26:43,590 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2022-10-15 21:26:43,592 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-10-15 21:26:43,617 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.10 09:26:43 BoogieIcfgContainer [2022-10-15 21:26:43,618 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-10-15 21:26:43,618 INFO L158 Benchmark]: Toolchain (without parser) took 12976.41ms. Allocated memory was 154.1MB in the beginning and 234.9MB in the end (delta: 80.7MB). Free memory was 126.9MB in the beginning and 141.4MB in the end (delta: -14.5MB). Peak memory consumption was 68.0MB. Max. memory is 8.0GB. [2022-10-15 21:26:43,619 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 154.1MB. Free memory is still 124.0MB. There was no memory consumed. Max. memory is 8.0GB. [2022-10-15 21:26:43,619 INFO L158 Benchmark]: CACSL2BoogieTranslator took 814.72ms. Allocated memory is still 154.1MB. Free memory was 126.7MB in the beginning and 103.2MB in the end (delta: 23.5MB). Peak memory consumption was 25.2MB. Max. memory is 8.0GB. [2022-10-15 21:26:43,619 INFO L158 Benchmark]: Boogie Procedure Inliner took 121.19ms. Allocated memory is still 154.1MB. Free memory was 103.2MB in the beginning and 99.7MB in the end (delta: 3.5MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2022-10-15 21:26:43,620 INFO L158 Benchmark]: Boogie Preprocessor took 149.75ms. Allocated memory is still 154.1MB. Free memory was 99.7MB in the beginning and 133.5MB in the end (delta: -33.8MB). Peak memory consumption was 5.1MB. Max. memory is 8.0GB. [2022-10-15 21:26:43,620 INFO L158 Benchmark]: RCFGBuilder took 1065.86ms. Allocated memory is still 154.1MB. Free memory was 133.5MB in the beginning and 96.8MB in the end (delta: 36.7MB). Peak memory consumption was 36.7MB. Max. memory is 8.0GB. [2022-10-15 21:26:43,621 INFO L158 Benchmark]: TraceAbstraction took 10797.60ms. Allocated memory was 154.1MB in the beginning and 234.9MB in the end (delta: 80.7MB). Free memory was 96.3MB in the beginning and 141.4MB in the end (delta: -45.1MB). Peak memory consumption was 36.7MB. Max. memory is 8.0GB. [2022-10-15 21:26:43,624 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 154.1MB. Free memory is still 124.0MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 814.72ms. Allocated memory is still 154.1MB. Free memory was 126.7MB in the beginning and 103.2MB in the end (delta: 23.5MB). Peak memory consumption was 25.2MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 121.19ms. Allocated memory is still 154.1MB. Free memory was 103.2MB in the beginning and 99.7MB in the end (delta: 3.5MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 149.75ms. Allocated memory is still 154.1MB. Free memory was 99.7MB in the beginning and 133.5MB in the end (delta: -33.8MB). Peak memory consumption was 5.1MB. Max. memory is 8.0GB. * RCFGBuilder took 1065.86ms. Allocated memory is still 154.1MB. Free memory was 133.5MB in the beginning and 96.8MB in the end (delta: 36.7MB). Peak memory consumption was 36.7MB. Max. memory is 8.0GB. * TraceAbstraction took 10797.60ms. Allocated memory was 154.1MB in the beginning and 234.9MB in the end (delta: 80.7MB). Free memory was 96.3MB in the beginning and 141.4MB in the end (delta: -45.1MB). Peak memory consumption was 36.7MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 804]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 804]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 108 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 10.7s, OverallIterations: 6, TraceHistogramMax: 16, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 276 SdHoareTripleChecker+Valid, 1.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 256 mSDsluCounter, 1950 SdHoareTripleChecker+Invalid, 0.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1303 mSDsCounter, 127 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 963 IncrementalHoareTripleChecker+Invalid, 1090 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 127 mSolverCounterUnsat, 647 mSDtfsCounter, 963 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1043 GetRequests, 965 SyntacticMatches, 0 SemanticMatches, 78 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 199 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=164occurred in iteration=5, InterpolantAutomatonStates: 54, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 121 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 43 LocationsWithAnnotation, 125 PreInvPairs, 206 NumberOfFragments, 274 HoareAnnotationTreeSize, 125 FomulaSimplifications, 10 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 43 FomulaSimplificationsInter, 256 FormulaSimplificationTreeSizeReductionInter, 0.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.4s SsaConstructionTime, 1.4s SatisfiabilityAnalysisTime, 4.1s InterpolantComputationTime, 1400 NumberOfCodeBlocks, 1400 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 1513 ConstructedInterpolants, 0 QuantifiedInterpolants, 2740 SizeOfPredicates, 15 NumberOfNonLiveVariables, 6184 ConjunctsInSsa, 29 ConjunctsInUnsatCore, 13 InterpolantComputations, 5 PerfectInterpolantSequences, 3111/3185 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - InvariantResult [Line: 875]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: -1]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 875]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 772]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 875]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 813]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 875]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 793]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 875]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 793]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 793]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: -1]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 607]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 617]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 597]: Loop Invariant Derived loop invariant: (\result + 1 <= 0 || ((i <= 0 && 0 <= i) && num <= 2)) || ((i <= 1 && 1 <= i) && num <= 2) - InvariantResult [Line: 583]: Loop Invariant Derived loop invariant: (((i <= 0 && 0 <= i) && num <= 2) || ((i <= 1 && 1 <= i) && num <= 2)) || 3 <= \result - InvariantResult [Line: 875]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 841]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: -1]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 852]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 797]: Loop Invariant Derived loop invariant: (((num <= 2 && i < 2147483646) && 2 <= i) || ((i <= 0 && 0 <= i) && num <= 2)) || ((i <= 1 && 1 <= i) && num <= 2) - InvariantResult [Line: 841]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 816]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 574]: Loop Invariant Derived loop invariant: ((i <= 0 && 0 <= i) && num <= 2) || ((i <= 1 && 1 <= i) && num <= 2) RESULT: Ultimate proved your program to be correct! [2022-10-15 21:26:43,690 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...