/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/weaver/popl20-mult-4.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-bc79526 [2022-01-18 02:31:47,929 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-18 02:31:47,931 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-18 02:31:47,990 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-18 02:31:47,991 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-18 02:31:47,993 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-18 02:31:47,995 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-18 02:31:47,997 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-18 02:31:47,998 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-18 02:31:48,002 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-18 02:31:48,002 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-18 02:31:48,003 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-18 02:31:48,003 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-18 02:31:48,005 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-18 02:31:48,006 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-18 02:31:48,007 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-18 02:31:48,007 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-18 02:31:48,008 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-18 02:31:48,011 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-18 02:31:48,016 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-18 02:31:48,017 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-18 02:31:48,018 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-18 02:31:48,019 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-18 02:31:48,020 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-18 02:31:48,024 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-01-18 02:31:48,030 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-18 02:31:48,031 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-18 02:31:48,031 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-18 02:31:48,032 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf [2022-01-18 02:31:48,062 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-18 02:31:48,062 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-18 02:31:48,062 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-18 02:31:48,062 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-18 02:31:48,063 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-01-18 02:31:48,064 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-01-18 02:31:48,064 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-18 02:31:48,064 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-18 02:31:48,064 INFO L138 SettingsManager]: * Use SBE=true [2022-01-18 02:31:48,064 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-18 02:31:48,065 INFO L138 SettingsManager]: * sizeof long=4 [2022-01-18 02:31:48,065 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-18 02:31:48,065 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-01-18 02:31:48,065 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-18 02:31:48,065 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-18 02:31:48,065 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-18 02:31:48,066 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-18 02:31:48,066 INFO L138 SettingsManager]: * sizeof long double=12 [2022-01-18 02:31:48,066 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-18 02:31:48,066 INFO L138 SettingsManager]: * Use constant arrays=true [2022-01-18 02:31:48,066 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-18 02:31:48,066 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-18 02:31:48,066 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-18 02:31:48,066 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-01-18 02:31:48,066 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-18 02:31:48,066 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-18 02:31:48,067 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-18 02:31:48,067 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-18 02:31:48,067 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-18 02:31:48,067 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-18 02:31:48,067 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-18 02:31:48,067 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-18 02:31:48,067 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-18 02:31:48,068 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-01-18 02:31:48,248 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-18 02:31:48,279 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-18 02:31:48,281 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-18 02:31:48,282 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-18 02:31:48,284 INFO L275 PluginConnector]: CDTParser initialized [2022-01-18 02:31:48,285 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/popl20-mult-4.wvr.c [2022-01-18 02:31:48,330 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d9872a750/ca86217066d34010b2b4a36a84c04fac/FLAG95837f199 [2022-01-18 02:31:48,711 INFO L306 CDTParser]: Found 1 translation units. [2022-01-18 02:31:48,712 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-mult-4.wvr.c [2022-01-18 02:31:48,721 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d9872a750/ca86217066d34010b2b4a36a84c04fac/FLAG95837f199 [2022-01-18 02:31:48,734 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d9872a750/ca86217066d34010b2b4a36a84c04fac [2022-01-18 02:31:48,736 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-18 02:31:48,738 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-01-18 02:31:48,740 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-18 02:31:48,740 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-18 02:31:48,742 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-18 02:31:48,743 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.01 02:31:48" (1/1) ... [2022-01-18 02:31:48,743 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1fb29600 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 02:31:48, skipping insertion in model container [2022-01-18 02:31:48,744 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.01 02:31:48" (1/1) ... [2022-01-18 02:31:48,749 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-18 02:31:48,766 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-18 02:31:48,964 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-mult-4.wvr.c[2612,2625] [2022-01-18 02:31:48,969 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-18 02:31:48,974 INFO L203 MainTranslator]: Completed pre-run [2022-01-18 02:31:49,003 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-mult-4.wvr.c[2612,2625] [2022-01-18 02:31:49,004 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-18 02:31:49,013 INFO L208 MainTranslator]: Completed translation [2022-01-18 02:31:49,014 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 02:31:49 WrapperNode [2022-01-18 02:31:49,014 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-18 02:31:49,015 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-18 02:31:49,015 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-18 02:31:49,015 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-18 02:31:49,019 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 02:31:49" (1/1) ... [2022-01-18 02:31:49,023 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 02:31:49" (1/1) ... [2022-01-18 02:31:49,035 INFO L137 Inliner]: procedures = 23, calls = 42, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 117 [2022-01-18 02:31:49,036 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-18 02:31:49,036 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-18 02:31:49,036 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-18 02:31:49,036 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-18 02:31:49,041 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 02:31:49" (1/1) ... [2022-01-18 02:31:49,041 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 02:31:49" (1/1) ... [2022-01-18 02:31:49,043 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 02:31:49" (1/1) ... [2022-01-18 02:31:49,043 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 02:31:49" (1/1) ... [2022-01-18 02:31:49,051 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 02:31:49" (1/1) ... [2022-01-18 02:31:49,054 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 02:31:49" (1/1) ... [2022-01-18 02:31:49,055 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 02:31:49" (1/1) ... [2022-01-18 02:31:49,056 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-18 02:31:49,057 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-18 02:31:49,057 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-18 02:31:49,057 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-18 02:31:49,069 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 02:31:49" (1/1) ... [2022-01-18 02:31:49,073 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-18 02:31:49,082 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 02:31:49,090 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) [2022-01-18 02:31:49,098 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 [2022-01-18 02:31:49,116 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-18 02:31:49,116 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-01-18 02:31:49,116 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-01-18 02:31:49,116 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-01-18 02:31:49,116 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-01-18 02:31:49,116 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-01-18 02:31:49,116 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-01-18 02:31:49,116 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2022-01-18 02:31:49,117 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2022-01-18 02:31:49,117 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-01-18 02:31:49,117 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-01-18 02:31:49,117 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-01-18 02:31:49,117 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-01-18 02:31:49,117 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-01-18 02:31:49,117 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-18 02:31:49,117 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-18 02:31:49,117 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-01-18 02:31:49,117 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-18 02:31:49,118 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-01-18 02:31:49,192 INFO L234 CfgBuilder]: Building ICFG [2022-01-18 02:31:49,193 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-18 02:31:49,429 INFO L275 CfgBuilder]: Performing block encoding [2022-01-18 02:31:49,455 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-18 02:31:49,455 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2022-01-18 02:31:49,457 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.01 02:31:49 BoogieIcfgContainer [2022-01-18 02:31:49,457 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-18 02:31:49,458 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-18 02:31:49,458 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-18 02:31:49,466 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-18 02:31:49,466 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.01 02:31:48" (1/3) ... [2022-01-18 02:31:49,466 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d4d04b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.01 02:31:49, skipping insertion in model container [2022-01-18 02:31:49,467 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 02:31:49" (2/3) ... [2022-01-18 02:31:49,467 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d4d04b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.01 02:31:49, skipping insertion in model container [2022-01-18 02:31:49,467 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.01 02:31:49" (3/3) ... [2022-01-18 02:31:49,469 INFO L111 eAbstractionObserver]: Analyzing ICFG popl20-mult-4.wvr.c [2022-01-18 02:31:49,474 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-01-18 02:31:49,474 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-18 02:31:49,474 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-18 02:31:49,474 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-01-18 02:31:49,533 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:31:49,533 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:31:49,534 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:31:49,534 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:31:49,535 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:31:49,536 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:31:49,537 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:31:49,537 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:31:49,537 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:31:49,538 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:31:49,538 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:31:49,538 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:31:49,538 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:31:49,538 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:31:49,539 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:31:49,539 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:31:49,539 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:31:49,539 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:31:49,540 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:31:49,540 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:31:49,540 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:31:49,540 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:31:49,541 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:31:49,542 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:31:49,543 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:31:49,545 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:31:49,545 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:31:49,546 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:31:49,546 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:31:49,546 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:31:49,546 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:31:49,547 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:31:49,548 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:31:49,548 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:31:49,549 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:31:49,549 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:31:49,549 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:31:49,549 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:31:49,550 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:31:49,550 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:31:49,550 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:31:49,550 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:31:49,550 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:31:49,550 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:31:49,551 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:31:49,551 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:31:49,552 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:31:49,552 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:31:49,553 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:31:49,553 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:31:49,553 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:31:49,553 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:31:49,553 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:31:49,554 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:31:49,554 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:31:49,554 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:31:49,554 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:31:49,554 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:31:49,555 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:31:49,555 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:31:49,555 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:31:49,555 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:31:49,556 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:31:49,556 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:31:49,556 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_~i~3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:31:49,557 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_~i~3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:31:49,557 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_~i~3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:31:49,557 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_~i~3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:31:49,557 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_~i~3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:31:49,557 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_~i~3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:31:49,558 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:31:49,558 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:31:49,558 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:31:49,558 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:31:49,558 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:31:49,558 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:31:49,559 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:31:49,559 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:31:49,559 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_~i~3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:31:49,559 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:31:49,559 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_~i~3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:31:49,559 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:31:49,560 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:31:49,560 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_~i~3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:31:49,560 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:31:49,560 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_~i~3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:31:49,560 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:31:49,560 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:31:49,562 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:31:49,563 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:31:49,563 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:31:49,563 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:31:49,563 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:31:49,563 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:31:49,564 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:31:49,564 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:31:49,564 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:31:49,564 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:31:49,566 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:31:49,567 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:31:49,567 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:31:49,567 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:31:49,568 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_~i~3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:31:49,568 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:31:49,568 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:31:49,568 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:31:49,569 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:31:49,569 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:31:49,574 INFO L148 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2022-01-18 02:31:49,602 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-18 02:31:49,606 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2022-01-18 02:31:49,606 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-01-18 02:31:49,614 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 136 places, 133 transitions, 298 flow [2022-01-18 02:31:50,717 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 33659 states, 33658 states have (on average 4.971180699982174) internal successors, (167320), 33658 states have internal predecessors, (167320), 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) [2022-01-18 02:31:50,780 INFO L276 IsEmpty]: Start isEmpty. Operand has 33659 states, 33658 states have (on average 4.971180699982174) internal successors, (167320), 33658 states have internal predecessors, (167320), 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) [2022-01-18 02:31:51,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2022-01-18 02:31:51,096 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 02:31:51,097 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 02:31:51,098 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 02:31:51,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 02:31:51,104 INFO L85 PathProgramCache]: Analyzing trace with hash -1708599078, now seen corresponding path program 1 times [2022-01-18 02:31:51,111 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 02:31:51,112 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1551401506] [2022-01-18 02:31:51,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 02:31:51,113 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 02:31:51,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 02:31:51,280 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 02:31:51,281 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 02:31:51,281 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1551401506] [2022-01-18 02:31:51,281 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1551401506] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 02:31:51,281 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 02:31:51,282 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-18 02:31:51,283 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [998243756] [2022-01-18 02:31:51,283 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 02:31:51,287 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-01-18 02:31:51,287 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 02:31:51,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-01-18 02:31:51,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-18 02:31:51,369 INFO L87 Difference]: Start difference. First operand has 33659 states, 33658 states have (on average 4.971180699982174) internal successors, (167320), 33658 states have internal predecessors, (167320), 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) Second operand has 2 states, 2 states have (on average 44.0) internal successors, (88), 2 states have internal predecessors, (88), 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) [2022-01-18 02:31:51,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 02:31:51,973 INFO L93 Difference]: Finished difference Result 33659 states and 153296 transitions. [2022-01-18 02:31:51,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-18 02:31:51,975 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 44.0) internal successors, (88), 2 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 88 [2022-01-18 02:31:51,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 02:31:52,377 INFO L225 Difference]: With dead ends: 33659 [2022-01-18 02:31:52,377 INFO L226 Difference]: Without dead ends: 33657 [2022-01-18 02:31:52,379 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-18 02:31:52,382 INFO L933 BasicCegarLoop]: 100 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 100 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-18 02:31:52,382 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 100 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-18 02:31:52,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33657 states. [2022-01-18 02:31:53,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33657 to 33657. [2022-01-18 02:31:53,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33657 states, 33656 states have (on average 4.554730211552175) internal successors, (153294), 33656 states have internal predecessors, (153294), 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) [2022-01-18 02:31:53,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33657 states to 33657 states and 153294 transitions. [2022-01-18 02:31:53,935 INFO L78 Accepts]: Start accepts. Automaton has 33657 states and 153294 transitions. Word has length 88 [2022-01-18 02:31:53,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 02:31:53,936 INFO L470 AbstractCegarLoop]: Abstraction has 33657 states and 153294 transitions. [2022-01-18 02:31:53,936 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 44.0) internal successors, (88), 2 states have internal predecessors, (88), 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) [2022-01-18 02:31:53,936 INFO L276 IsEmpty]: Start isEmpty. Operand 33657 states and 153294 transitions. [2022-01-18 02:31:54,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2022-01-18 02:31:54,058 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 02:31:54,059 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 02:31:54,059 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-18 02:31:54,059 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 02:31:54,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 02:31:54,060 INFO L85 PathProgramCache]: Analyzing trace with hash 560306940, now seen corresponding path program 1 times [2022-01-18 02:31:54,060 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 02:31:54,060 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1066655701] [2022-01-18 02:31:54,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 02:31:54,061 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 02:31:54,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 02:31:54,257 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 02:31:54,257 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 02:31:54,257 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1066655701] [2022-01-18 02:31:54,257 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1066655701] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 02:31:54,258 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 02:31:54,258 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-18 02:31:54,258 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1113685599] [2022-01-18 02:31:54,258 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 02:31:54,259 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-18 02:31:54,259 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 02:31:54,259 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-18 02:31:54,259 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-18 02:31:54,260 INFO L87 Difference]: Start difference. First operand 33657 states and 153294 transitions. Second operand has 5 states, 5 states have (on average 17.6) internal successors, (88), 5 states have internal predecessors, (88), 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) [2022-01-18 02:31:54,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 02:31:54,805 INFO L93 Difference]: Finished difference Result 40731 states and 182634 transitions. [2022-01-18 02:31:54,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-18 02:31:54,805 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 5 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 88 [2022-01-18 02:31:54,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 02:31:55,103 INFO L225 Difference]: With dead ends: 40731 [2022-01-18 02:31:55,103 INFO L226 Difference]: Without dead ends: 38709 [2022-01-18 02:31:55,103 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-01-18 02:31:55,104 INFO L933 BasicCegarLoop]: 94 mSDtfsCounter, 8 mSDsluCounter, 280 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 347 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 02:31:55,104 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8 Valid, 347 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 02:31:55,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38709 states. [2022-01-18 02:31:56,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38709 to 38277. [2022-01-18 02:31:56,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38277 states, 38276 states have (on average 4.508229700073153) internal successors, (172557), 38276 states have internal predecessors, (172557), 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) [2022-01-18 02:31:56,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38277 states to 38277 states and 172557 transitions. [2022-01-18 02:31:56,480 INFO L78 Accepts]: Start accepts. Automaton has 38277 states and 172557 transitions. Word has length 88 [2022-01-18 02:31:56,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 02:31:56,481 INFO L470 AbstractCegarLoop]: Abstraction has 38277 states and 172557 transitions. [2022-01-18 02:31:56,481 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 5 states have internal predecessors, (88), 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) [2022-01-18 02:31:56,481 INFO L276 IsEmpty]: Start isEmpty. Operand 38277 states and 172557 transitions. [2022-01-18 02:31:56,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2022-01-18 02:31:56,591 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 02:31:56,592 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 02:31:56,592 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-18 02:31:56,592 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 02:31:56,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 02:31:56,593 INFO L85 PathProgramCache]: Analyzing trace with hash 1145915436, now seen corresponding path program 1 times [2022-01-18 02:31:56,593 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 02:31:56,593 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [905655573] [2022-01-18 02:31:56,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 02:31:56,593 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 02:31:56,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 02:31:56,785 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 02:31:56,786 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 02:31:56,786 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [905655573] [2022-01-18 02:31:56,787 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [905655573] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 02:31:56,787 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 02:31:56,787 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-18 02:31:56,787 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [66367755] [2022-01-18 02:31:56,787 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 02:31:56,787 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-18 02:31:56,787 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 02:31:56,788 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-18 02:31:56,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-01-18 02:31:56,788 INFO L87 Difference]: Start difference. First operand 38277 states and 172557 transitions. Second operand has 5 states, 5 states have (on average 18.6) internal successors, (93), 5 states have internal predecessors, (93), 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) [2022-01-18 02:31:57,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 02:31:57,654 INFO L93 Difference]: Finished difference Result 63219 states and 280029 transitions. [2022-01-18 02:31:57,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-18 02:31:57,655 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.6) internal successors, (93), 5 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 93 [2022-01-18 02:31:57,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 02:31:57,985 INFO L225 Difference]: With dead ends: 63219 [2022-01-18 02:31:57,985 INFO L226 Difference]: Without dead ends: 61095 [2022-01-18 02:31:57,985 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-01-18 02:31:57,986 INFO L933 BasicCegarLoop]: 199 mSDtfsCounter, 136 mSDsluCounter, 396 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 556 SdHoareTripleChecker+Invalid, 126 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 02:31:57,986 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [136 Valid, 556 Invalid, 126 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 02:31:58,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61095 states. [2022-01-18 02:31:59,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61095 to 50217. [2022-01-18 02:31:59,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50217 states, 50216 states have (on average 4.463278636291222) internal successors, (224128), 50216 states have internal predecessors, (224128), 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) [2022-01-18 02:32:00,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50217 states to 50217 states and 224128 transitions. [2022-01-18 02:32:00,269 INFO L78 Accepts]: Start accepts. Automaton has 50217 states and 224128 transitions. Word has length 93 [2022-01-18 02:32:00,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 02:32:00,269 INFO L470 AbstractCegarLoop]: Abstraction has 50217 states and 224128 transitions. [2022-01-18 02:32:00,269 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.6) internal successors, (93), 5 states have internal predecessors, (93), 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) [2022-01-18 02:32:00,269 INFO L276 IsEmpty]: Start isEmpty. Operand 50217 states and 224128 transitions. [2022-01-18 02:32:00,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2022-01-18 02:32:00,412 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 02:32:00,412 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 02:32:00,412 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-18 02:32:00,412 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 02:32:00,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 02:32:00,413 INFO L85 PathProgramCache]: Analyzing trace with hash -697904180, now seen corresponding path program 1 times [2022-01-18 02:32:00,413 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 02:32:00,413 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [708733527] [2022-01-18 02:32:00,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 02:32:00,413 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 02:32:00,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 02:32:00,472 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 02:32:00,472 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 02:32:00,472 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [708733527] [2022-01-18 02:32:00,472 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [708733527] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 02:32:00,473 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 02:32:00,473 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-18 02:32:00,473 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [678215126] [2022-01-18 02:32:00,473 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 02:32:00,473 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-18 02:32:00,473 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 02:32:00,473 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-18 02:32:00,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-01-18 02:32:00,474 INFO L87 Difference]: Start difference. First operand 50217 states and 224128 transitions. Second operand has 4 states, 4 states have (on average 23.25) internal successors, (93), 4 states have internal predecessors, (93), 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) [2022-01-18 02:32:01,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 02:32:01,437 INFO L93 Difference]: Finished difference Result 71756 states and 319699 transitions. [2022-01-18 02:32:01,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-18 02:32:01,438 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.25) internal successors, (93), 4 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 93 [2022-01-18 02:32:01,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 02:32:01,781 INFO L225 Difference]: With dead ends: 71756 [2022-01-18 02:32:01,782 INFO L226 Difference]: Without dead ends: 69278 [2022-01-18 02:32:01,782 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-01-18 02:32:01,783 INFO L933 BasicCegarLoop]: 159 mSDtfsCounter, 110 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 329 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 02:32:01,783 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [110 Valid, 329 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 02:32:01,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69278 states. [2022-01-18 02:32:03,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69278 to 53251. [2022-01-18 02:32:03,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53251 states, 53250 states have (on average 4.474985915492958) internal successors, (238293), 53250 states have internal predecessors, (238293), 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) [2022-01-18 02:32:03,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53251 states to 53251 states and 238293 transitions. [2022-01-18 02:32:03,915 INFO L78 Accepts]: Start accepts. Automaton has 53251 states and 238293 transitions. Word has length 93 [2022-01-18 02:32:03,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 02:32:03,915 INFO L470 AbstractCegarLoop]: Abstraction has 53251 states and 238293 transitions. [2022-01-18 02:32:03,915 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.25) internal successors, (93), 4 states have internal predecessors, (93), 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) [2022-01-18 02:32:03,916 INFO L276 IsEmpty]: Start isEmpty. Operand 53251 states and 238293 transitions. [2022-01-18 02:32:04,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2022-01-18 02:32:04,069 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 02:32:04,069 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 02:32:04,070 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-18 02:32:04,070 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 02:32:04,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 02:32:04,070 INFO L85 PathProgramCache]: Analyzing trace with hash -1068497080, now seen corresponding path program 2 times [2022-01-18 02:32:04,070 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 02:32:04,070 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1008983605] [2022-01-18 02:32:04,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 02:32:04,071 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 02:32:04,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 02:32:04,165 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 02:32:04,165 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 02:32:04,165 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1008983605] [2022-01-18 02:32:04,165 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1008983605] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 02:32:04,165 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 02:32:04,165 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-18 02:32:04,165 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [484963814] [2022-01-18 02:32:04,166 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 02:32:04,166 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-18 02:32:04,166 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 02:32:04,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-18 02:32:04,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-18 02:32:04,166 INFO L87 Difference]: Start difference. First operand 53251 states and 238293 transitions. Second operand has 4 states, 4 states have (on average 23.25) internal successors, (93), 4 states have internal predecessors, (93), 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) [2022-01-18 02:32:05,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 02:32:05,172 INFO L93 Difference]: Finished difference Result 89701 states and 395838 transitions. [2022-01-18 02:32:05,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-18 02:32:05,173 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.25) internal successors, (93), 4 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 93 [2022-01-18 02:32:05,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 02:32:05,634 INFO L225 Difference]: With dead ends: 89701 [2022-01-18 02:32:05,634 INFO L226 Difference]: Without dead ends: 88765 [2022-01-18 02:32:05,634 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-18 02:32:05,635 INFO L933 BasicCegarLoop]: 169 mSDtfsCounter, 133 mSDsluCounter, 225 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 133 SdHoareTripleChecker+Valid, 372 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 02:32:05,635 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [133 Valid, 372 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 02:32:05,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88765 states. [2022-01-18 02:32:07,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88765 to 63121. [2022-01-18 02:32:07,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63121 states, 63120 states have (on average 4.501489226869455) internal successors, (284134), 63120 states have internal predecessors, (284134), 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) [2022-01-18 02:32:08,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63121 states to 63121 states and 284134 transitions. [2022-01-18 02:32:08,147 INFO L78 Accepts]: Start accepts. Automaton has 63121 states and 284134 transitions. Word has length 93 [2022-01-18 02:32:08,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 02:32:08,148 INFO L470 AbstractCegarLoop]: Abstraction has 63121 states and 284134 transitions. [2022-01-18 02:32:08,148 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.25) internal successors, (93), 4 states have internal predecessors, (93), 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) [2022-01-18 02:32:08,148 INFO L276 IsEmpty]: Start isEmpty. Operand 63121 states and 284134 transitions. [2022-01-18 02:32:08,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2022-01-18 02:32:08,323 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 02:32:08,323 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 02:32:08,323 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-18 02:32:08,323 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 02:32:08,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 02:32:08,324 INFO L85 PathProgramCache]: Analyzing trace with hash 1833939858, now seen corresponding path program 3 times [2022-01-18 02:32:08,324 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 02:32:08,324 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [495290400] [2022-01-18 02:32:08,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 02:32:08,324 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 02:32:08,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 02:32:08,382 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 02:32:08,383 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 02:32:08,383 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [495290400] [2022-01-18 02:32:08,383 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [495290400] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 02:32:08,383 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 02:32:08,383 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-18 02:32:08,383 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [925635680] [2022-01-18 02:32:08,383 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 02:32:08,384 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-18 02:32:08,384 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 02:32:08,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-18 02:32:08,384 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-01-18 02:32:08,384 INFO L87 Difference]: Start difference. First operand 63121 states and 284134 transitions. Second operand has 4 states, 4 states have (on average 23.25) internal successors, (93), 4 states have internal predecessors, (93), 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) [2022-01-18 02:32:09,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 02:32:09,312 INFO L93 Difference]: Finished difference Result 76706 states and 343340 transitions. [2022-01-18 02:32:09,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-18 02:32:09,312 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.25) internal successors, (93), 4 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 93 [2022-01-18 02:32:09,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 02:32:09,692 INFO L225 Difference]: With dead ends: 76706 [2022-01-18 02:32:09,692 INFO L226 Difference]: Without dead ends: 75467 [2022-01-18 02:32:09,692 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-01-18 02:32:09,693 INFO L933 BasicCegarLoop]: 161 mSDtfsCounter, 103 mSDsluCounter, 141 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 289 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-18 02:32:09,693 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [103 Valid, 289 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-18 02:32:09,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75467 states. [2022-01-18 02:32:11,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75467 to 51516. [2022-01-18 02:32:11,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51516 states, 51515 states have (on average 4.475511986799961) internal successors, (230556), 51515 states have internal predecessors, (230556), 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) [2022-01-18 02:32:12,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51516 states to 51516 states and 230556 transitions. [2022-01-18 02:32:12,041 INFO L78 Accepts]: Start accepts. Automaton has 51516 states and 230556 transitions. Word has length 93 [2022-01-18 02:32:12,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 02:32:12,043 INFO L470 AbstractCegarLoop]: Abstraction has 51516 states and 230556 transitions. [2022-01-18 02:32:12,043 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.25) internal successors, (93), 4 states have internal predecessors, (93), 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) [2022-01-18 02:32:12,043 INFO L276 IsEmpty]: Start isEmpty. Operand 51516 states and 230556 transitions. [2022-01-18 02:32:12,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-01-18 02:32:12,185 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 02:32:12,185 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 02:32:12,186 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-18 02:32:12,186 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 02:32:12,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 02:32:12,186 INFO L85 PathProgramCache]: Analyzing trace with hash 2054734952, now seen corresponding path program 1 times [2022-01-18 02:32:12,186 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 02:32:12,186 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [841812351] [2022-01-18 02:32:12,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 02:32:12,186 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 02:32:12,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 02:32:12,280 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-18 02:32:12,281 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 02:32:12,281 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [841812351] [2022-01-18 02:32:12,281 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [841812351] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 02:32:12,281 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [725539468] [2022-01-18 02:32:12,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 02:32:12,281 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 02:32:12,281 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 02:32:12,283 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) [2022-01-18 02:32:12,283 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-01-18 02:32:12,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 02:32:12,380 INFO L263 TraceCheckSpWp]: Trace formula consists of 264 conjuncts, 6 conjunts are in the unsatisfiable core [2022-01-18 02:32:12,384 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 02:32:12,652 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-18 02:32:12,652 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 02:32:12,821 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-18 02:32:12,822 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [725539468] provided 1 perfect and 1 imperfect interpolant sequences [2022-01-18 02:32:12,822 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-01-18 02:32:12,822 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6, 5] total 7 [2022-01-18 02:32:12,822 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [570577875] [2022-01-18 02:32:12,822 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 02:32:12,822 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-18 02:32:12,822 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 02:32:12,823 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-18 02:32:12,823 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2022-01-18 02:32:12,823 INFO L87 Difference]: Start difference. First operand 51516 states and 230556 transitions. Second operand has 4 states, 4 states have (on average 24.5) internal successors, (98), 4 states have internal predecessors, (98), 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) [2022-01-18 02:32:13,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 02:32:13,208 INFO L93 Difference]: Finished difference Result 55339 states and 247957 transitions. [2022-01-18 02:32:13,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-18 02:32:13,208 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 24.5) internal successors, (98), 4 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 98 [2022-01-18 02:32:13,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 02:32:13,447 INFO L225 Difference]: With dead ends: 55339 [2022-01-18 02:32:13,448 INFO L226 Difference]: Without dead ends: 55339 [2022-01-18 02:32:13,448 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 200 GetRequests, 192 SyntacticMatches, 3 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2022-01-18 02:32:13,449 INFO L933 BasicCegarLoop]: 148 mSDtfsCounter, 95 mSDsluCounter, 122 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 258 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-18 02:32:13,449 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [95 Valid, 258 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-18 02:32:13,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55339 states. [2022-01-18 02:32:15,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55339 to 55339. [2022-01-18 02:32:15,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55339 states, 55338 states have (on average 4.480772705916369) internal successors, (247957), 55338 states have internal predecessors, (247957), 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) [2022-01-18 02:32:15,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55339 states to 55339 states and 247957 transitions. [2022-01-18 02:32:15,490 INFO L78 Accepts]: Start accepts. Automaton has 55339 states and 247957 transitions. Word has length 98 [2022-01-18 02:32:15,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 02:32:15,490 INFO L470 AbstractCegarLoop]: Abstraction has 55339 states and 247957 transitions. [2022-01-18 02:32:15,491 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.5) internal successors, (98), 4 states have internal predecessors, (98), 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) [2022-01-18 02:32:15,491 INFO L276 IsEmpty]: Start isEmpty. Operand 55339 states and 247957 transitions. [2022-01-18 02:32:15,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-01-18 02:32:15,628 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 02:32:15,628 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 02:32:15,647 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-01-18 02:32:15,828 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 02:32:15,829 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 02:32:15,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 02:32:15,829 INFO L85 PathProgramCache]: Analyzing trace with hash -1162914164, now seen corresponding path program 1 times [2022-01-18 02:32:15,830 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 02:32:15,830 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [370167368] [2022-01-18 02:32:15,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 02:32:15,830 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 02:32:15,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 02:32:15,925 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-18 02:32:15,926 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 02:32:15,926 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [370167368] [2022-01-18 02:32:15,926 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [370167368] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 02:32:15,926 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 02:32:15,926 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-18 02:32:15,926 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1720550634] [2022-01-18 02:32:15,926 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 02:32:15,926 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-18 02:32:15,926 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 02:32:15,927 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-18 02:32:15,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-01-18 02:32:15,927 INFO L87 Difference]: Start difference. First operand 55339 states and 247957 transitions. Second operand has 5 states, 5 states have (on average 19.6) internal successors, (98), 5 states have internal predecessors, (98), 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) [2022-01-18 02:32:17,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 02:32:17,068 INFO L93 Difference]: Finished difference Result 85069 states and 383068 transitions. [2022-01-18 02:32:17,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-18 02:32:17,069 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 5 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 98 [2022-01-18 02:32:17,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 02:32:17,473 INFO L225 Difference]: With dead ends: 85069 [2022-01-18 02:32:17,473 INFO L226 Difference]: Without dead ends: 85069 [2022-01-18 02:32:17,474 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-01-18 02:32:17,474 INFO L933 BasicCegarLoop]: 182 mSDtfsCounter, 119 mSDsluCounter, 289 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 447 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 02:32:17,475 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [119 Valid, 447 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 02:32:17,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85069 states. [2022-01-18 02:32:19,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85069 to 62530. [2022-01-18 02:32:19,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62530 states, 62529 states have (on average 4.458203393625358) internal successors, (278767), 62529 states have internal predecessors, (278767), 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) [2022-01-18 02:32:20,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62530 states to 62530 states and 278767 transitions. [2022-01-18 02:32:20,079 INFO L78 Accepts]: Start accepts. Automaton has 62530 states and 278767 transitions. Word has length 98 [2022-01-18 02:32:20,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 02:32:20,080 INFO L470 AbstractCegarLoop]: Abstraction has 62530 states and 278767 transitions. [2022-01-18 02:32:20,080 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 5 states have internal predecessors, (98), 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) [2022-01-18 02:32:20,081 INFO L276 IsEmpty]: Start isEmpty. Operand 62530 states and 278767 transitions. [2022-01-18 02:32:20,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-01-18 02:32:20,255 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 02:32:20,255 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 02:32:20,255 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-18 02:32:20,255 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 02:32:20,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 02:32:20,256 INFO L85 PathProgramCache]: Analyzing trace with hash 1146094196, now seen corresponding path program 2 times [2022-01-18 02:32:20,256 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 02:32:20,256 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [561081732] [2022-01-18 02:32:20,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 02:32:20,256 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 02:32:20,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 02:32:20,390 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 02:32:20,391 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 02:32:20,391 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [561081732] [2022-01-18 02:32:20,391 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [561081732] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 02:32:20,391 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 02:32:20,391 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-18 02:32:20,391 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [498212048] [2022-01-18 02:32:20,391 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 02:32:20,391 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-18 02:32:20,391 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 02:32:20,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-18 02:32:20,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-01-18 02:32:20,392 INFO L87 Difference]: Start difference. First operand 62530 states and 278767 transitions. Second operand has 6 states, 6 states have (on average 16.333333333333332) internal successors, (98), 6 states have internal predecessors, (98), 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) [2022-01-18 02:32:21,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 02:32:21,646 INFO L93 Difference]: Finished difference Result 88758 states and 398107 transitions. [2022-01-18 02:32:21,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-18 02:32:21,647 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.333333333333332) internal successors, (98), 6 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 98 [2022-01-18 02:32:21,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 02:32:22,095 INFO L225 Difference]: With dead ends: 88758 [2022-01-18 02:32:22,095 INFO L226 Difference]: Without dead ends: 88758 [2022-01-18 02:32:22,096 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-01-18 02:32:22,096 INFO L933 BasicCegarLoop]: 215 mSDtfsCounter, 159 mSDsluCounter, 640 mSDsCounter, 0 mSdLazyCounter, 186 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 796 SdHoareTripleChecker+Invalid, 195 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 186 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 02:32:22,096 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [159 Valid, 796 Invalid, 195 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 186 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 02:32:22,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88758 states. [2022-01-18 02:32:24,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88758 to 65588. [2022-01-18 02:32:24,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65588 states, 65587 states have (on average 4.465122661503042) internal successors, (292854), 65587 states have internal predecessors, (292854), 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) [2022-01-18 02:32:24,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65588 states to 65588 states and 292854 transitions. [2022-01-18 02:32:24,949 INFO L78 Accepts]: Start accepts. Automaton has 65588 states and 292854 transitions. Word has length 98 [2022-01-18 02:32:24,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 02:32:24,949 INFO L470 AbstractCegarLoop]: Abstraction has 65588 states and 292854 transitions. [2022-01-18 02:32:24,949 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.333333333333332) internal successors, (98), 6 states have internal predecessors, (98), 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) [2022-01-18 02:32:24,949 INFO L276 IsEmpty]: Start isEmpty. Operand 65588 states and 292854 transitions. [2022-01-18 02:32:25,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-01-18 02:32:25,167 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 02:32:25,167 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 02:32:25,167 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-18 02:32:25,167 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 02:32:25,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 02:32:25,167 INFO L85 PathProgramCache]: Analyzing trace with hash 776329516, now seen corresponding path program 2 times [2022-01-18 02:32:25,167 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 02:32:25,167 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [119352125] [2022-01-18 02:32:25,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 02:32:25,168 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 02:32:25,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 02:32:25,268 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 02:32:25,269 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 02:32:25,269 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [119352125] [2022-01-18 02:32:25,269 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [119352125] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 02:32:25,269 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [886707999] [2022-01-18 02:32:25,269 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-01-18 02:32:25,269 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 02:32:25,269 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 02:32:25,272 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) [2022-01-18 02:32:25,299 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-01-18 02:32:25,386 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-01-18 02:32:25,386 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-18 02:32:25,388 INFO L263 TraceCheckSpWp]: Trace formula consists of 264 conjuncts, 4 conjunts are in the unsatisfiable core [2022-01-18 02:32:25,391 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 02:32:25,593 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 02:32:25,593 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-18 02:32:25,594 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [886707999] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 02:32:25,594 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-01-18 02:32:25,594 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 8 [2022-01-18 02:32:25,594 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [561263151] [2022-01-18 02:32:25,594 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 02:32:25,594 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-18 02:32:25,594 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 02:32:25,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-18 02:32:25,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2022-01-18 02:32:25,595 INFO L87 Difference]: Start difference. First operand 65588 states and 292854 transitions. Second operand has 4 states, 4 states have (on average 24.5) internal successors, (98), 4 states have internal predecessors, (98), 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) [2022-01-18 02:32:26,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 02:32:26,263 INFO L93 Difference]: Finished difference Result 87554 states and 392961 transitions. [2022-01-18 02:32:26,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-18 02:32:26,263 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 24.5) internal successors, (98), 4 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 98 [2022-01-18 02:32:26,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 02:32:27,401 INFO L225 Difference]: With dead ends: 87554 [2022-01-18 02:32:27,401 INFO L226 Difference]: Without dead ends: 83213 [2022-01-18 02:32:27,401 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2022-01-18 02:32:27,402 INFO L933 BasicCegarLoop]: 150 mSDtfsCounter, 98 mSDsluCounter, 181 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 316 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 02:32:27,403 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [98 Valid, 316 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 02:32:27,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83213 states. [2022-01-18 02:32:29,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83213 to 59564. [2022-01-18 02:32:29,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59564 states, 59563 states have (on average 4.520759531924181) internal successors, (269270), 59563 states have internal predecessors, (269270), 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) [2022-01-18 02:32:29,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59564 states to 59564 states and 269270 transitions. [2022-01-18 02:32:29,854 INFO L78 Accepts]: Start accepts. Automaton has 59564 states and 269270 transitions. Word has length 98 [2022-01-18 02:32:29,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 02:32:29,855 INFO L470 AbstractCegarLoop]: Abstraction has 59564 states and 269270 transitions. [2022-01-18 02:32:29,855 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.5) internal successors, (98), 4 states have internal predecessors, (98), 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) [2022-01-18 02:32:29,855 INFO L276 IsEmpty]: Start isEmpty. Operand 59564 states and 269270 transitions. [2022-01-18 02:32:29,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-01-18 02:32:29,999 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 02:32:29,999 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 02:32:30,016 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-01-18 02:32:30,200 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-01-18 02:32:30,200 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 02:32:30,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 02:32:30,201 INFO L85 PathProgramCache]: Analyzing trace with hash -541598790, now seen corresponding path program 3 times [2022-01-18 02:32:30,201 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 02:32:30,201 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [136317053] [2022-01-18 02:32:30,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 02:32:30,201 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 02:32:30,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 02:32:30,267 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-18 02:32:30,267 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 02:32:30,267 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [136317053] [2022-01-18 02:32:30,267 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [136317053] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 02:32:30,267 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 02:32:30,268 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-18 02:32:30,268 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [372555304] [2022-01-18 02:32:30,268 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 02:32:30,268 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-18 02:32:30,269 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 02:32:30,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-18 02:32:30,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-18 02:32:30,269 INFO L87 Difference]: Start difference. First operand 59564 states and 269270 transitions. Second operand has 5 states, 5 states have (on average 19.6) internal successors, (98), 5 states have internal predecessors, (98), 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) [2022-01-18 02:32:31,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 02:32:31,508 INFO L93 Difference]: Finished difference Result 93055 states and 418675 transitions. [2022-01-18 02:32:31,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-18 02:32:31,508 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 5 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 98 [2022-01-18 02:32:31,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 02:32:31,924 INFO L225 Difference]: With dead ends: 93055 [2022-01-18 02:32:31,924 INFO L226 Difference]: Without dead ends: 91375 [2022-01-18 02:32:31,924 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-01-18 02:32:31,925 INFO L933 BasicCegarLoop]: 184 mSDtfsCounter, 114 mSDsluCounter, 205 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 368 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 02:32:31,925 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [114 Valid, 368 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 02:32:32,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91375 states. [2022-01-18 02:32:34,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91375 to 64496. [2022-01-18 02:32:34,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64496 states, 64495 states have (on average 4.511869137142414) internal successors, (290993), 64495 states have internal predecessors, (290993), 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) [2022-01-18 02:32:34,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64496 states to 64496 states and 290993 transitions. [2022-01-18 02:32:34,623 INFO L78 Accepts]: Start accepts. Automaton has 64496 states and 290993 transitions. Word has length 98 [2022-01-18 02:32:34,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 02:32:34,623 INFO L470 AbstractCegarLoop]: Abstraction has 64496 states and 290993 transitions. [2022-01-18 02:32:34,623 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 5 states have internal predecessors, (98), 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) [2022-01-18 02:32:34,623 INFO L276 IsEmpty]: Start isEmpty. Operand 64496 states and 290993 transitions. [2022-01-18 02:32:34,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-01-18 02:32:34,812 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 02:32:34,812 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 02:32:34,812 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-01-18 02:32:34,812 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 02:32:34,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 02:32:34,812 INFO L85 PathProgramCache]: Analyzing trace with hash 696832420, now seen corresponding path program 4 times [2022-01-18 02:32:34,812 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 02:32:34,812 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1972197600] [2022-01-18 02:32:34,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 02:32:34,813 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 02:32:34,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 02:32:34,876 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-18 02:32:34,876 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 02:32:34,876 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1972197600] [2022-01-18 02:32:34,876 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1972197600] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 02:32:34,876 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 02:32:34,876 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-18 02:32:34,876 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [398450479] [2022-01-18 02:32:34,876 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 02:32:34,876 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-18 02:32:34,876 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 02:32:34,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-18 02:32:34,877 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-01-18 02:32:34,877 INFO L87 Difference]: Start difference. First operand 64496 states and 290993 transitions. Second operand has 5 states, 5 states have (on average 19.6) internal successors, (98), 5 states have internal predecessors, (98), 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) [2022-01-18 02:32:36,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 02:32:36,111 INFO L93 Difference]: Finished difference Result 104843 states and 472926 transitions. [2022-01-18 02:32:36,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-18 02:32:36,111 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 5 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 98 [2022-01-18 02:32:36,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 02:32:36,597 INFO L225 Difference]: With dead ends: 104843 [2022-01-18 02:32:36,598 INFO L226 Difference]: Without dead ends: 104843 [2022-01-18 02:32:36,598 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-01-18 02:32:36,598 INFO L933 BasicCegarLoop]: 169 mSDtfsCounter, 100 mSDsluCounter, 199 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 349 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 02:32:36,598 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [100 Valid, 349 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 02:32:36,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104843 states. [2022-01-18 02:32:39,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104843 to 67278. [2022-01-18 02:32:39,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67278 states, 67277 states have (on average 4.5062948704609305) internal successors, (303170), 67277 states have internal predecessors, (303170), 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) [2022-01-18 02:32:39,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67278 states to 67278 states and 303170 transitions. [2022-01-18 02:32:39,384 INFO L78 Accepts]: Start accepts. Automaton has 67278 states and 303170 transitions. Word has length 98 [2022-01-18 02:32:39,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 02:32:39,384 INFO L470 AbstractCegarLoop]: Abstraction has 67278 states and 303170 transitions. [2022-01-18 02:32:39,384 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 5 states have internal predecessors, (98), 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) [2022-01-18 02:32:39,384 INFO L276 IsEmpty]: Start isEmpty. Operand 67278 states and 303170 transitions. [2022-01-18 02:32:39,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-01-18 02:32:39,571 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 02:32:39,571 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 02:32:39,571 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-01-18 02:32:39,572 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 02:32:39,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 02:32:39,572 INFO L85 PathProgramCache]: Analyzing trace with hash -1948353230, now seen corresponding path program 5 times [2022-01-18 02:32:39,572 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 02:32:39,572 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2116046241] [2022-01-18 02:32:39,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 02:32:39,572 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 02:32:39,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 02:32:39,651 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 02:32:39,651 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 02:32:39,651 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2116046241] [2022-01-18 02:32:39,651 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2116046241] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 02:32:39,651 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 02:32:39,651 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-18 02:32:39,651 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [908929749] [2022-01-18 02:32:39,652 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 02:32:39,652 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-18 02:32:39,652 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 02:32:39,652 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-18 02:32:39,652 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-01-18 02:32:39,652 INFO L87 Difference]: Start difference. First operand 67278 states and 303170 transitions. Second operand has 6 states, 6 states have (on average 16.333333333333332) internal successors, (98), 6 states have internal predecessors, (98), 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) [2022-01-18 02:32:41,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 02:32:41,143 INFO L93 Difference]: Finished difference Result 139764 states and 628872 transitions. [2022-01-18 02:32:41,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-18 02:32:41,143 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.333333333333332) internal successors, (98), 6 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 98 [2022-01-18 02:32:41,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 02:32:42,319 INFO L225 Difference]: With dead ends: 139764 [2022-01-18 02:32:42,319 INFO L226 Difference]: Without dead ends: 138402 [2022-01-18 02:32:42,319 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-01-18 02:32:42,319 INFO L933 BasicCegarLoop]: 174 mSDtfsCounter, 166 mSDsluCounter, 490 mSDsCounter, 0 mSdLazyCounter, 162 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 166 SdHoareTripleChecker+Valid, 616 SdHoareTripleChecker+Invalid, 169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 162 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 02:32:42,320 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [166 Valid, 616 Invalid, 169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 162 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 02:32:42,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138402 states. [2022-01-18 02:32:44,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138402 to 64544. [2022-01-18 02:32:44,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64544 states, 64543 states have (on average 4.512789922997071) internal successors, (291269), 64543 states have internal predecessors, (291269), 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) [2022-01-18 02:32:45,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64544 states to 64544 states and 291269 transitions. [2022-01-18 02:32:45,540 INFO L78 Accepts]: Start accepts. Automaton has 64544 states and 291269 transitions. Word has length 98 [2022-01-18 02:32:45,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 02:32:45,541 INFO L470 AbstractCegarLoop]: Abstraction has 64544 states and 291269 transitions. [2022-01-18 02:32:45,541 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.333333333333332) internal successors, (98), 6 states have internal predecessors, (98), 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) [2022-01-18 02:32:45,541 INFO L276 IsEmpty]: Start isEmpty. Operand 64544 states and 291269 transitions. [2022-01-18 02:32:45,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-01-18 02:32:45,797 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 02:32:45,797 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 02:32:45,797 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-01-18 02:32:45,797 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 02:32:45,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 02:32:45,797 INFO L85 PathProgramCache]: Analyzing trace with hash -1919919388, now seen corresponding path program 6 times [2022-01-18 02:32:45,797 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 02:32:45,798 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1180846714] [2022-01-18 02:32:45,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 02:32:45,798 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 02:32:45,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 02:32:45,864 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-18 02:32:45,865 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 02:32:45,865 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1180846714] [2022-01-18 02:32:45,865 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1180846714] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 02:32:45,865 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 02:32:45,865 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-18 02:32:45,866 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [767707800] [2022-01-18 02:32:45,866 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 02:32:45,866 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-18 02:32:45,866 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 02:32:45,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-18 02:32:45,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-18 02:32:45,867 INFO L87 Difference]: Start difference. First operand 64544 states and 291269 transitions. Second operand has 5 states, 5 states have (on average 19.6) internal successors, (98), 5 states have internal predecessors, (98), 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) [2022-01-18 02:32:46,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 02:32:46,551 INFO L93 Difference]: Finished difference Result 92280 states and 418087 transitions. [2022-01-18 02:32:46,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-18 02:32:46,552 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 5 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 98 [2022-01-18 02:32:46,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 02:32:47,667 INFO L225 Difference]: With dead ends: 92280 [2022-01-18 02:32:47,667 INFO L226 Difference]: Without dead ends: 92136 [2022-01-18 02:32:47,667 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-01-18 02:32:47,668 INFO L933 BasicCegarLoop]: 165 mSDtfsCounter, 78 mSDsluCounter, 390 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 520 SdHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 02:32:47,668 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [78 Valid, 520 Invalid, 113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 02:32:47,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92136 states. [2022-01-18 02:32:49,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92136 to 64544. [2022-01-18 02:32:49,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64544 states, 64543 states have (on average 4.512046232744062) internal successors, (291221), 64543 states have internal predecessors, (291221), 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) [2022-01-18 02:32:49,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64544 states to 64544 states and 291221 transitions. [2022-01-18 02:32:49,818 INFO L78 Accepts]: Start accepts. Automaton has 64544 states and 291221 transitions. Word has length 98 [2022-01-18 02:32:49,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 02:32:49,818 INFO L470 AbstractCegarLoop]: Abstraction has 64544 states and 291221 transitions. [2022-01-18 02:32:49,818 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 5 states have internal predecessors, (98), 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) [2022-01-18 02:32:49,818 INFO L276 IsEmpty]: Start isEmpty. Operand 64544 states and 291221 transitions. [2022-01-18 02:32:49,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-01-18 02:32:49,986 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 02:32:49,986 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 02:32:49,986 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-01-18 02:32:49,986 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 02:32:49,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 02:32:49,987 INFO L85 PathProgramCache]: Analyzing trace with hash -1362461532, now seen corresponding path program 7 times [2022-01-18 02:32:49,987 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 02:32:49,987 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1555152173] [2022-01-18 02:32:49,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 02:32:49,987 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 02:32:50,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 02:32:50,042 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-18 02:32:50,042 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 02:32:50,042 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1555152173] [2022-01-18 02:32:50,042 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1555152173] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 02:32:50,042 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 02:32:50,042 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-18 02:32:50,043 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [804070345] [2022-01-18 02:32:50,043 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 02:32:50,043 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-18 02:32:50,043 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 02:32:50,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-18 02:32:50,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-01-18 02:32:50,043 INFO L87 Difference]: Start difference. First operand 64544 states and 291221 transitions. Second operand has 5 states, 5 states have (on average 19.6) internal successors, (98), 5 states have internal predecessors, (98), 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) [2022-01-18 02:32:51,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 02:32:51,493 INFO L93 Difference]: Finished difference Result 98473 states and 437309 transitions. [2022-01-18 02:32:51,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-18 02:32:51,493 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 5 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 98 [2022-01-18 02:32:51,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 02:32:51,872 INFO L225 Difference]: With dead ends: 98473 [2022-01-18 02:32:51,872 INFO L226 Difference]: Without dead ends: 89791 [2022-01-18 02:32:51,872 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-01-18 02:32:51,873 INFO L933 BasicCegarLoop]: 186 mSDtfsCounter, 146 mSDsluCounter, 378 mSDsCounter, 0 mSdLazyCounter, 121 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 523 SdHoareTripleChecker+Invalid, 125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 02:32:51,873 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [146 Valid, 523 Invalid, 125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 121 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 02:32:52,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89791 states. [2022-01-18 02:32:54,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89791 to 66476. [2022-01-18 02:32:54,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66476 states, 66475 states have (on average 4.542474614516736) internal successors, (301961), 66475 states have internal predecessors, (301961), 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) [2022-01-18 02:32:54,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66476 states to 66476 states and 301961 transitions. [2022-01-18 02:32:54,784 INFO L78 Accepts]: Start accepts. Automaton has 66476 states and 301961 transitions. Word has length 98 [2022-01-18 02:32:54,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 02:32:54,784 INFO L470 AbstractCegarLoop]: Abstraction has 66476 states and 301961 transitions. [2022-01-18 02:32:54,784 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 5 states have internal predecessors, (98), 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) [2022-01-18 02:32:54,785 INFO L276 IsEmpty]: Start isEmpty. Operand 66476 states and 301961 transitions. [2022-01-18 02:32:54,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-01-18 02:32:54,970 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 02:32:54,970 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 02:32:54,971 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-01-18 02:32:54,971 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 02:32:54,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 02:32:54,971 INFO L85 PathProgramCache]: Analyzing trace with hash -345364374, now seen corresponding path program 8 times [2022-01-18 02:32:54,971 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 02:32:54,971 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [65648955] [2022-01-18 02:32:54,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 02:32:54,971 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 02:32:55,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 02:32:55,092 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-18 02:32:55,092 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 02:32:55,092 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [65648955] [2022-01-18 02:32:55,092 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [65648955] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 02:32:55,092 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 02:32:55,092 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-18 02:32:55,092 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [101877483] [2022-01-18 02:32:55,092 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 02:32:55,092 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-18 02:32:55,092 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 02:32:55,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-18 02:32:55,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-01-18 02:32:55,093 INFO L87 Difference]: Start difference. First operand 66476 states and 301961 transitions. Second operand has 5 states, 5 states have (on average 19.6) internal successors, (98), 5 states have internal predecessors, (98), 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) [2022-01-18 02:32:56,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 02:32:56,800 INFO L93 Difference]: Finished difference Result 130474 states and 595700 transitions. [2022-01-18 02:32:56,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-18 02:32:56,800 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 5 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 98 [2022-01-18 02:32:56,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 02:32:57,432 INFO L225 Difference]: With dead ends: 130474 [2022-01-18 02:32:57,432 INFO L226 Difference]: Without dead ends: 130474 [2022-01-18 02:32:57,442 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-01-18 02:32:57,442 INFO L933 BasicCegarLoop]: 154 mSDtfsCounter, 118 mSDsluCounter, 213 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 344 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 02:32:57,442 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [118 Valid, 344 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 02:32:58,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130474 states. [2022-01-18 02:33:00,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130474 to 69830. [2022-01-18 02:33:00,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69830 states, 69829 states have (on average 4.55353792836787) internal successors, (317969), 69829 states have internal predecessors, (317969), 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) [2022-01-18 02:33:00,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69830 states to 69830 states and 317969 transitions. [2022-01-18 02:33:00,664 INFO L78 Accepts]: Start accepts. Automaton has 69830 states and 317969 transitions. Word has length 98 [2022-01-18 02:33:00,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 02:33:00,664 INFO L470 AbstractCegarLoop]: Abstraction has 69830 states and 317969 transitions. [2022-01-18 02:33:00,664 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 5 states have internal predecessors, (98), 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) [2022-01-18 02:33:00,664 INFO L276 IsEmpty]: Start isEmpty. Operand 69830 states and 317969 transitions. [2022-01-18 02:33:01,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-01-18 02:33:01,407 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 02:33:01,407 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 02:33:01,407 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-01-18 02:33:01,407 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 02:33:01,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 02:33:01,409 INFO L85 PathProgramCache]: Analyzing trace with hash 1304417272, now seen corresponding path program 9 times [2022-01-18 02:33:01,409 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 02:33:01,409 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1898350422] [2022-01-18 02:33:01,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 02:33:01,409 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 02:33:01,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 02:33:01,537 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 02:33:01,537 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 02:33:01,537 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1898350422] [2022-01-18 02:33:01,537 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1898350422] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 02:33:01,537 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 02:33:01,537 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-18 02:33:01,537 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1498223677] [2022-01-18 02:33:01,537 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 02:33:01,537 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-18 02:33:01,538 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 02:33:01,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-18 02:33:01,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-01-18 02:33:01,538 INFO L87 Difference]: Start difference. First operand 69830 states and 317969 transitions. Second operand has 6 states, 6 states have (on average 16.333333333333332) internal successors, (98), 6 states have internal predecessors, (98), 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) [2022-01-18 02:33:03,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 02:33:03,224 INFO L93 Difference]: Finished difference Result 132262 states and 598204 transitions. [2022-01-18 02:33:03,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-18 02:33:03,226 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.333333333333332) internal successors, (98), 6 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 98 [2022-01-18 02:33:03,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 02:33:03,945 INFO L225 Difference]: With dead ends: 132262 [2022-01-18 02:33:03,945 INFO L226 Difference]: Without dead ends: 130228 [2022-01-18 02:33:03,945 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-01-18 02:33:03,946 INFO L933 BasicCegarLoop]: 171 mSDtfsCounter, 193 mSDsluCounter, 246 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 193 SdHoareTripleChecker+Valid, 394 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 02:33:03,946 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [193 Valid, 394 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 02:33:04,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130228 states. [2022-01-18 02:33:06,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130228 to 66349. [2022-01-18 02:33:06,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66349 states, 66348 states have (on average 4.54179477904383) internal successors, (301339), 66348 states have internal predecessors, (301339), 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) [2022-01-18 02:33:07,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66349 states to 66349 states and 301339 transitions. [2022-01-18 02:33:07,255 INFO L78 Accepts]: Start accepts. Automaton has 66349 states and 301339 transitions. Word has length 98 [2022-01-18 02:33:07,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 02:33:07,255 INFO L470 AbstractCegarLoop]: Abstraction has 66349 states and 301339 transitions. [2022-01-18 02:33:07,256 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.333333333333332) internal successors, (98), 6 states have internal predecessors, (98), 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) [2022-01-18 02:33:07,256 INFO L276 IsEmpty]: Start isEmpty. Operand 66349 states and 301339 transitions. [2022-01-18 02:33:07,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-01-18 02:33:07,438 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 02:33:07,438 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 02:33:07,439 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-01-18 02:33:07,439 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 02:33:07,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 02:33:07,439 INFO L85 PathProgramCache]: Analyzing trace with hash 1332851114, now seen corresponding path program 10 times [2022-01-18 02:33:07,439 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 02:33:07,439 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [461690170] [2022-01-18 02:33:07,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 02:33:07,439 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 02:33:07,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 02:33:07,478 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-18 02:33:07,478 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 02:33:07,478 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [461690170] [2022-01-18 02:33:07,478 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [461690170] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 02:33:07,478 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 02:33:07,478 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-18 02:33:07,478 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [574354112] [2022-01-18 02:33:07,479 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 02:33:07,479 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-18 02:33:07,479 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 02:33:07,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-18 02:33:07,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-01-18 02:33:07,479 INFO L87 Difference]: Start difference. First operand 66349 states and 301339 transitions. Second operand has 5 states, 5 states have (on average 19.6) internal successors, (98), 5 states have internal predecessors, (98), 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) [2022-01-18 02:33:08,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 02:33:08,830 INFO L93 Difference]: Finished difference Result 118447 states and 535789 transitions. [2022-01-18 02:33:08,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-18 02:33:08,830 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 5 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 98 [2022-01-18 02:33:08,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 02:33:09,399 INFO L225 Difference]: With dead ends: 118447 [2022-01-18 02:33:09,399 INFO L226 Difference]: Without dead ends: 118399 [2022-01-18 02:33:09,399 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-01-18 02:33:09,400 INFO L933 BasicCegarLoop]: 160 mSDtfsCounter, 95 mSDsluCounter, 374 mSDsCounter, 0 mSdLazyCounter, 116 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 499 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 02:33:09,400 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [95 Valid, 499 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 116 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 02:33:09,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118399 states. [2022-01-18 02:33:11,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118399 to 66333. [2022-01-18 02:33:12,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66333 states, 66332 states have (on average 4.5415033468009405) internal successors, (301247), 66332 states have internal predecessors, (301247), 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) [2022-01-18 02:33:12,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66333 states to 66333 states and 301247 transitions. [2022-01-18 02:33:12,307 INFO L78 Accepts]: Start accepts. Automaton has 66333 states and 301247 transitions. Word has length 98 [2022-01-18 02:33:12,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 02:33:12,307 INFO L470 AbstractCegarLoop]: Abstraction has 66333 states and 301247 transitions. [2022-01-18 02:33:12,307 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 5 states have internal predecessors, (98), 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) [2022-01-18 02:33:12,307 INFO L276 IsEmpty]: Start isEmpty. Operand 66333 states and 301247 transitions. [2022-01-18 02:33:12,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-01-18 02:33:12,493 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 02:33:12,494 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 02:33:12,494 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-01-18 02:33:12,494 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 02:33:12,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 02:33:12,494 INFO L85 PathProgramCache]: Analyzing trace with hash 1983847338, now seen corresponding path program 11 times [2022-01-18 02:33:12,494 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 02:33:12,494 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [7698297] [2022-01-18 02:33:12,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 02:33:12,495 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 02:33:12,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 02:33:12,542 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-18 02:33:12,542 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 02:33:12,542 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [7698297] [2022-01-18 02:33:12,542 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [7698297] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 02:33:12,542 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 02:33:12,542 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-18 02:33:12,542 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [821931178] [2022-01-18 02:33:12,542 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 02:33:12,543 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-18 02:33:12,543 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 02:33:12,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-18 02:33:12,543 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-01-18 02:33:12,543 INFO L87 Difference]: Start difference. First operand 66333 states and 301247 transitions. Second operand has 5 states, 5 states have (on average 19.6) internal successors, (98), 5 states have internal predecessors, (98), 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) [2022-01-18 02:33:13,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 02:33:13,689 INFO L93 Difference]: Finished difference Result 84699 states and 386649 transitions. [2022-01-18 02:33:13,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-18 02:33:13,690 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 5 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 98 [2022-01-18 02:33:13,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 02:33:14,103 INFO L225 Difference]: With dead ends: 84699 [2022-01-18 02:33:14,103 INFO L226 Difference]: Without dead ends: 84603 [2022-01-18 02:33:14,103 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-01-18 02:33:14,104 INFO L933 BasicCegarLoop]: 141 mSDtfsCounter, 69 mSDsluCounter, 236 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 355 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-18 02:33:14,104 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [69 Valid, 355 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-18 02:33:14,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84603 states. [2022-01-18 02:33:15,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84603 to 65856. [2022-01-18 02:33:15,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65856 states, 65855 states have (on average 4.5458659175461245) internal successors, (299368), 65855 states have internal predecessors, (299368), 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) [2022-01-18 02:33:16,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65856 states to 65856 states and 299368 transitions. [2022-01-18 02:33:16,253 INFO L78 Accepts]: Start accepts. Automaton has 65856 states and 299368 transitions. Word has length 98 [2022-01-18 02:33:16,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 02:33:16,253 INFO L470 AbstractCegarLoop]: Abstraction has 65856 states and 299368 transitions. [2022-01-18 02:33:16,253 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 5 states have internal predecessors, (98), 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) [2022-01-18 02:33:16,253 INFO L276 IsEmpty]: Start isEmpty. Operand 65856 states and 299368 transitions. [2022-01-18 02:33:16,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-01-18 02:33:16,864 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 02:33:16,864 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 02:33:16,864 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-01-18 02:33:16,864 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 02:33:16,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 02:33:16,864 INFO L85 PathProgramCache]: Analyzing trace with hash -1850810616, now seen corresponding path program 1 times [2022-01-18 02:33:16,864 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 02:33:16,865 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1765516058] [2022-01-18 02:33:16,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 02:33:16,865 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 02:33:16,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 02:33:16,957 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 02:33:16,957 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 02:33:16,957 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1765516058] [2022-01-18 02:33:16,957 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1765516058] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 02:33:16,957 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2044660479] [2022-01-18 02:33:16,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 02:33:16,957 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 02:33:16,957 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 02:33:16,958 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) [2022-01-18 02:33:16,960 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-01-18 02:33:17,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 02:33:17,046 INFO L263 TraceCheckSpWp]: Trace formula consists of 277 conjuncts, 6 conjunts are in the unsatisfiable core [2022-01-18 02:33:17,057 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 02:33:17,264 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 02:33:17,264 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 02:33:17,419 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 02:33:17,419 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2044660479] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 02:33:17,419 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 02:33:17,419 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 4] total 10 [2022-01-18 02:33:17,420 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [262574383] [2022-01-18 02:33:17,420 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 02:33:17,420 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 02:33:17,420 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 02:33:17,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 02:33:17,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-01-18 02:33:17,420 INFO L87 Difference]: Start difference. First operand 65856 states and 299368 transitions. Second operand has 10 states, 10 states have (on average 15.6) internal successors, (156), 10 states have internal predecessors, (156), 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) [2022-01-18 02:33:19,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 02:33:19,448 INFO L93 Difference]: Finished difference Result 174594 states and 797644 transitions. [2022-01-18 02:33:19,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-01-18 02:33:19,449 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 15.6) internal successors, (156), 10 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 103 [2022-01-18 02:33:19,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 02:33:20,363 INFO L225 Difference]: With dead ends: 174594 [2022-01-18 02:33:20,364 INFO L226 Difference]: Without dead ends: 174594 [2022-01-18 02:33:20,364 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 230 GetRequests, 211 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2022-01-18 02:33:20,364 INFO L933 BasicCegarLoop]: 335 mSDtfsCounter, 498 mSDsluCounter, 1171 mSDsCounter, 0 mSdLazyCounter, 475 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 498 SdHoareTripleChecker+Valid, 1373 SdHoareTripleChecker+Invalid, 501 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 475 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 02:33:20,364 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [498 Valid, 1373 Invalid, 501 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 475 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 02:33:21,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174594 states. [2022-01-18 02:33:23,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174594 to 62931. [2022-01-18 02:33:23,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62931 states, 62930 states have (on average 4.5571269664706815) internal successors, (286780), 62930 states have internal predecessors, (286780), 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) [2022-01-18 02:33:23,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62931 states to 62931 states and 286780 transitions. [2022-01-18 02:33:23,909 INFO L78 Accepts]: Start accepts. Automaton has 62931 states and 286780 transitions. Word has length 103 [2022-01-18 02:33:23,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 02:33:23,910 INFO L470 AbstractCegarLoop]: Abstraction has 62931 states and 286780 transitions. [2022-01-18 02:33:23,910 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 15.6) internal successors, (156), 10 states have internal predecessors, (156), 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) [2022-01-18 02:33:23,910 INFO L276 IsEmpty]: Start isEmpty. Operand 62931 states and 286780 transitions. [2022-01-18 02:33:24,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-01-18 02:33:24,572 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 02:33:24,572 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 02:33:24,596 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-01-18 02:33:24,787 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 02:33:24,787 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 02:33:24,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 02:33:24,788 INFO L85 PathProgramCache]: Analyzing trace with hash 2140980418, now seen corresponding path program 1 times [2022-01-18 02:33:24,788 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 02:33:24,788 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1260758836] [2022-01-18 02:33:24,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 02:33:24,788 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 02:33:24,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 02:33:24,871 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 02:33:24,871 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 02:33:24,871 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1260758836] [2022-01-18 02:33:24,871 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1260758836] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 02:33:24,871 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 02:33:24,871 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-18 02:33:24,872 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1716583213] [2022-01-18 02:33:24,872 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 02:33:24,872 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-18 02:33:24,872 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 02:33:24,872 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-18 02:33:24,872 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-01-18 02:33:24,872 INFO L87 Difference]: Start difference. First operand 62931 states and 286780 transitions. Second operand has 6 states, 6 states have (on average 17.166666666666668) internal successors, (103), 6 states have internal predecessors, (103), 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) [2022-01-18 02:33:25,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 02:33:25,750 INFO L93 Difference]: Finished difference Result 111649 states and 511120 transitions. [2022-01-18 02:33:25,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-18 02:33:25,750 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 17.166666666666668) internal successors, (103), 6 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 103 [2022-01-18 02:33:25,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 02:33:26,957 INFO L225 Difference]: With dead ends: 111649 [2022-01-18 02:33:26,957 INFO L226 Difference]: Without dead ends: 111649 [2022-01-18 02:33:26,957 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-01-18 02:33:26,958 INFO L933 BasicCegarLoop]: 191 mSDtfsCounter, 206 mSDsluCounter, 329 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 206 SdHoareTripleChecker+Valid, 487 SdHoareTripleChecker+Invalid, 128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 02:33:26,958 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [206 Valid, 487 Invalid, 128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 02:33:27,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111649 states. [2022-01-18 02:33:29,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111649 to 64031. [2022-01-18 02:33:29,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64031 states, 64030 states have (on average 4.558878650632516) internal successors, (291905), 64030 states have internal predecessors, (291905), 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) [2022-01-18 02:33:29,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64031 states to 64031 states and 291905 transitions. [2022-01-18 02:33:29,389 INFO L78 Accepts]: Start accepts. Automaton has 64031 states and 291905 transitions. Word has length 103 [2022-01-18 02:33:29,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 02:33:29,390 INFO L470 AbstractCegarLoop]: Abstraction has 64031 states and 291905 transitions. [2022-01-18 02:33:29,390 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 17.166666666666668) internal successors, (103), 6 states have internal predecessors, (103), 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) [2022-01-18 02:33:29,390 INFO L276 IsEmpty]: Start isEmpty. Operand 64031 states and 291905 transitions. [2022-01-18 02:33:30,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-01-18 02:33:30,012 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 02:33:30,012 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 02:33:30,012 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-01-18 02:33:30,012 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 02:33:30,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 02:33:30,013 INFO L85 PathProgramCache]: Analyzing trace with hash -1279880700, now seen corresponding path program 2 times [2022-01-18 02:33:30,013 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 02:33:30,013 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1030914449] [2022-01-18 02:33:30,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 02:33:30,013 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 02:33:30,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 02:33:30,101 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 02:33:30,101 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 02:33:30,101 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1030914449] [2022-01-18 02:33:30,101 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1030914449] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 02:33:30,101 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 02:33:30,101 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-18 02:33:30,101 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1909022873] [2022-01-18 02:33:30,101 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 02:33:30,102 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-18 02:33:30,102 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 02:33:30,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-18 02:33:30,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-01-18 02:33:30,102 INFO L87 Difference]: Start difference. First operand 64031 states and 291905 transitions. Second operand has 6 states, 6 states have (on average 17.166666666666668) internal successors, (103), 6 states have internal predecessors, (103), 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) [2022-01-18 02:33:31,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 02:33:31,034 INFO L93 Difference]: Finished difference Result 104161 states and 476350 transitions. [2022-01-18 02:33:31,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-18 02:33:31,035 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 17.166666666666668) internal successors, (103), 6 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 103 [2022-01-18 02:33:31,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 02:33:32,241 INFO L225 Difference]: With dead ends: 104161 [2022-01-18 02:33:32,242 INFO L226 Difference]: Without dead ends: 104161 [2022-01-18 02:33:32,242 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-01-18 02:33:32,242 INFO L933 BasicCegarLoop]: 211 mSDtfsCounter, 212 mSDsluCounter, 348 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 212 SdHoareTripleChecker+Valid, 523 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 02:33:32,242 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [212 Valid, 523 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 02:33:32,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104161 states. [2022-01-18 02:33:34,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104161 to 59019. [2022-01-18 02:33:34,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59019 states, 59018 states have (on average 4.546002914365109) internal successors, (268296), 59018 states have internal predecessors, (268296), 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) [2022-01-18 02:33:34,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59019 states to 59019 states and 268296 transitions. [2022-01-18 02:33:34,546 INFO L78 Accepts]: Start accepts. Automaton has 59019 states and 268296 transitions. Word has length 103 [2022-01-18 02:33:34,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 02:33:34,546 INFO L470 AbstractCegarLoop]: Abstraction has 59019 states and 268296 transitions. [2022-01-18 02:33:34,546 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 17.166666666666668) internal successors, (103), 6 states have internal predecessors, (103), 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) [2022-01-18 02:33:34,546 INFO L276 IsEmpty]: Start isEmpty. Operand 59019 states and 268296 transitions. [2022-01-18 02:33:34,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-01-18 02:33:34,693 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 02:33:34,693 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 02:33:34,693 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-01-18 02:33:34,694 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 02:33:34,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 02:33:34,694 INFO L85 PathProgramCache]: Analyzing trace with hash -1462318488, now seen corresponding path program 2 times [2022-01-18 02:33:34,694 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 02:33:34,694 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [914109793] [2022-01-18 02:33:34,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 02:33:34,694 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 02:33:34,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 02:33:34,753 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 02:33:34,753 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 02:33:34,753 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [914109793] [2022-01-18 02:33:34,753 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [914109793] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 02:33:34,753 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [886429858] [2022-01-18 02:33:34,753 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-01-18 02:33:34,753 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 02:33:34,754 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 02:33:34,754 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) [2022-01-18 02:33:34,755 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-01-18 02:33:34,836 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-01-18 02:33:34,836 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-18 02:33:34,838 INFO L263 TraceCheckSpWp]: Trace formula consists of 277 conjuncts, 6 conjunts are in the unsatisfiable core [2022-01-18 02:33:34,839 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 02:33:35,042 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 02:33:35,042 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 02:33:35,212 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 02:33:35,212 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [886429858] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 02:33:35,212 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 02:33:35,212 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 9 [2022-01-18 02:33:35,213 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1072529240] [2022-01-18 02:33:35,213 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 02:33:35,213 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-18 02:33:35,213 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 02:33:35,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-18 02:33:35,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-01-18 02:33:35,214 INFO L87 Difference]: Start difference. First operand 59019 states and 268296 transitions. Second operand has 9 states, 9 states have (on average 14.777777777777779) internal successors, (133), 9 states have internal predecessors, (133), 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) [2022-01-18 02:33:36,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 02:33:36,397 INFO L93 Difference]: Finished difference Result 84164 states and 383640 transitions. [2022-01-18 02:33:36,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-18 02:33:36,398 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 14.777777777777779) internal successors, (133), 9 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 103 [2022-01-18 02:33:36,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 02:33:36,735 INFO L225 Difference]: With dead ends: 84164 [2022-01-18 02:33:36,736 INFO L226 Difference]: Without dead ends: 84164 [2022-01-18 02:33:36,736 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 212 GetRequests, 203 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=37, Invalid=53, Unknown=0, NotChecked=0, Total=90 [2022-01-18 02:33:36,736 INFO L933 BasicCegarLoop]: 199 mSDtfsCounter, 296 mSDsluCounter, 609 mSDsCounter, 0 mSdLazyCounter, 187 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 296 SdHoareTripleChecker+Valid, 744 SdHoareTripleChecker+Invalid, 201 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 187 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 02:33:36,736 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [296 Valid, 744 Invalid, 201 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 187 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 02:33:36,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84164 states. [2022-01-18 02:33:38,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84164 to 48618. [2022-01-18 02:33:38,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48618 states, 48617 states have (on average 4.567846638007281) internal successors, (222075), 48617 states have internal predecessors, (222075), 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) [2022-01-18 02:33:39,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48618 states to 48618 states and 222075 transitions. [2022-01-18 02:33:39,186 INFO L78 Accepts]: Start accepts. Automaton has 48618 states and 222075 transitions. Word has length 103 [2022-01-18 02:33:39,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 02:33:39,186 INFO L470 AbstractCegarLoop]: Abstraction has 48618 states and 222075 transitions. [2022-01-18 02:33:39,186 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 14.777777777777779) internal successors, (133), 9 states have internal predecessors, (133), 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) [2022-01-18 02:33:39,186 INFO L276 IsEmpty]: Start isEmpty. Operand 48618 states and 222075 transitions. [2022-01-18 02:33:39,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2022-01-18 02:33:39,368 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 02:33:39,368 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 02:33:39,391 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-01-18 02:33:39,569 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 02:33:39,569 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 02:33:39,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 02:33:39,569 INFO L85 PathProgramCache]: Analyzing trace with hash -1358209140, now seen corresponding path program 1 times [2022-01-18 02:33:39,569 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 02:33:39,570 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [967218157] [2022-01-18 02:33:39,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 02:33:39,570 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 02:33:39,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 02:33:39,668 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 02:33:39,668 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 02:33:39,668 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [967218157] [2022-01-18 02:33:39,668 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [967218157] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 02:33:39,668 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1852252975] [2022-01-18 02:33:39,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 02:33:39,669 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 02:33:39,669 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 02:33:39,669 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) [2022-01-18 02:33:39,670 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-01-18 02:33:39,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 02:33:39,773 INFO L263 TraceCheckSpWp]: Trace formula consists of 285 conjuncts, 11 conjunts are in the unsatisfiable core [2022-01-18 02:33:39,775 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 02:33:39,959 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-18 02:33:39,959 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 02:33:40,144 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-18 02:33:40,144 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1852252975] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 02:33:40,144 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 02:33:40,144 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 4, 4] total 10 [2022-01-18 02:33:40,145 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1089752512] [2022-01-18 02:33:40,145 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 02:33:40,146 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 02:33:40,146 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 02:33:40,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 02:33:40,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-01-18 02:33:40,147 INFO L87 Difference]: Start difference. First operand 48618 states and 222075 transitions. Second operand has 10 states, 10 states have (on average 20.6) internal successors, (206), 10 states have internal predecessors, (206), 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) [2022-01-18 02:33:41,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 02:33:41,517 INFO L93 Difference]: Finished difference Result 140261 states and 633845 transitions. [2022-01-18 02:33:41,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-18 02:33:41,517 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 20.6) internal successors, (206), 10 states have internal predecessors, (206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2022-01-18 02:33:41,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 02:33:42,148 INFO L225 Difference]: With dead ends: 140261 [2022-01-18 02:33:42,148 INFO L226 Difference]: Without dead ends: 132800 [2022-01-18 02:33:42,148 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 226 GetRequests, 212 SyntacticMatches, 3 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2022-01-18 02:33:42,148 INFO L933 BasicCegarLoop]: 157 mSDtfsCounter, 242 mSDsluCounter, 780 mSDsCounter, 0 mSdLazyCounter, 160 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 242 SdHoareTripleChecker+Valid, 867 SdHoareTripleChecker+Invalid, 169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 02:33:42,149 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [242 Valid, 867 Invalid, 169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 160 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 02:33:42,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132800 states. [2022-01-18 02:33:45,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132800 to 122554. [2022-01-18 02:33:45,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122554 states, 122553 states have (on average 4.562670844450972) internal successors, (559169), 122553 states have internal predecessors, (559169), 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) [2022-01-18 02:33:46,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122554 states to 122554 states and 559169 transitions. [2022-01-18 02:33:46,728 INFO L78 Accepts]: Start accepts. Automaton has 122554 states and 559169 transitions. Word has length 108 [2022-01-18 02:33:46,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 02:33:46,729 INFO L470 AbstractCegarLoop]: Abstraction has 122554 states and 559169 transitions. [2022-01-18 02:33:46,729 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 20.6) internal successors, (206), 10 states have internal predecessors, (206), 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) [2022-01-18 02:33:46,729 INFO L276 IsEmpty]: Start isEmpty. Operand 122554 states and 559169 transitions. [2022-01-18 02:33:47,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2022-01-18 02:33:47,105 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 02:33:47,105 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 02:33:47,127 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-01-18 02:33:47,305 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2022-01-18 02:33:47,306 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 02:33:47,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 02:33:47,306 INFO L85 PathProgramCache]: Analyzing trace with hash -1794452218, now seen corresponding path program 2 times [2022-01-18 02:33:47,306 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 02:33:47,306 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [430358752] [2022-01-18 02:33:47,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 02:33:47,306 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 02:33:47,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 02:33:47,396 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-18 02:33:47,396 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 02:33:47,396 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [430358752] [2022-01-18 02:33:47,397 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [430358752] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 02:33:47,397 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1814855225] [2022-01-18 02:33:47,397 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-01-18 02:33:47,397 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 02:33:47,397 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 02:33:47,398 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) [2022-01-18 02:33:47,399 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-01-18 02:33:47,509 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-01-18 02:33:47,510 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-18 02:33:47,511 INFO L263 TraceCheckSpWp]: Trace formula consists of 285 conjuncts, 18 conjunts are in the unsatisfiable core [2022-01-18 02:33:47,512 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 02:33:47,783 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-18 02:33:47,783 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 02:33:47,999 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-18 02:33:48,000 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1814855225] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 02:33:48,000 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 02:33:48,000 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 13 [2022-01-18 02:33:48,000 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1912428489] [2022-01-18 02:33:48,000 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 02:33:48,000 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-01-18 02:33:48,000 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 02:33:48,001 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-01-18 02:33:48,001 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2022-01-18 02:33:48,001 INFO L87 Difference]: Start difference. First operand 122554 states and 559169 transitions. Second operand has 13 states, 13 states have (on average 17.384615384615383) internal successors, (226), 13 states have internal predecessors, (226), 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) [2022-01-18 02:33:51,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 02:33:51,616 INFO L93 Difference]: Finished difference Result 274034 states and 1244126 transitions. [2022-01-18 02:33:51,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-18 02:33:51,616 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 17.384615384615383) internal successors, (226), 13 states have internal predecessors, (226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2022-01-18 02:33:51,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 02:33:53,322 INFO L225 Difference]: With dead ends: 274034 [2022-01-18 02:33:53,322 INFO L226 Difference]: Without dead ends: 266006 [2022-01-18 02:33:53,322 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 226 GetRequests, 210 SyntacticMatches, 2 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=61, Invalid=179, Unknown=0, NotChecked=0, Total=240 [2022-01-18 02:33:53,322 INFO L933 BasicCegarLoop]: 258 mSDtfsCounter, 421 mSDsluCounter, 1323 mSDsCounter, 0 mSdLazyCounter, 276 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 421 SdHoareTripleChecker+Valid, 1460 SdHoareTripleChecker+Invalid, 292 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 276 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 02:33:53,323 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [421 Valid, 1460 Invalid, 292 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 276 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 02:33:54,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266006 states. [2022-01-18 02:33:59,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266006 to 165829. [2022-01-18 02:33:59,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 165829 states, 165828 states have (on average 4.580318160986082) internal successors, (759545), 165828 states have internal predecessors, (759545), 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) [2022-01-18 02:34:01,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165829 states to 165829 states and 759545 transitions. [2022-01-18 02:34:01,119 INFO L78 Accepts]: Start accepts. Automaton has 165829 states and 759545 transitions. Word has length 108 [2022-01-18 02:34:01,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 02:34:01,119 INFO L470 AbstractCegarLoop]: Abstraction has 165829 states and 759545 transitions. [2022-01-18 02:34:01,120 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 17.384615384615383) internal successors, (226), 13 states have internal predecessors, (226), 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) [2022-01-18 02:34:01,120 INFO L276 IsEmpty]: Start isEmpty. Operand 165829 states and 759545 transitions. [2022-01-18 02:34:01,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-01-18 02:34:01,605 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 02:34:01,605 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 02:34:01,625 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2022-01-18 02:34:01,805 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 02:34:01,808 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 02:34:01,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 02:34:01,808 INFO L85 PathProgramCache]: Analyzing trace with hash -644865062, now seen corresponding path program 3 times [2022-01-18 02:34:01,808 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 02:34:01,808 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2043136242] [2022-01-18 02:34:01,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 02:34:01,808 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 02:34:01,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 02:34:01,916 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-18 02:34:01,917 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 02:34:01,917 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2043136242] [2022-01-18 02:34:01,917 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2043136242] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 02:34:01,917 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1034974349] [2022-01-18 02:34:01,917 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-01-18 02:34:01,917 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 02:34:01,917 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 02:34:01,918 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 02:34:01,920 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-01-18 02:34:02,016 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2022-01-18 02:34:02,016 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-18 02:34:02,017 INFO L263 TraceCheckSpWp]: Trace formula consists of 293 conjuncts, 14 conjunts are in the unsatisfiable core [2022-01-18 02:34:02,018 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 02:34:02,278 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-18 02:34:02,278 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 02:34:02,512 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-18 02:34:02,513 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1034974349] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 02:34:02,513 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 02:34:02,513 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 23 [2022-01-18 02:34:02,513 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1899707318] [2022-01-18 02:34:02,513 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 02:34:02,513 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-01-18 02:34:02,513 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 02:34:02,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-01-18 02:34:02,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=441, Unknown=0, NotChecked=0, Total=506 [2022-01-18 02:34:02,514 INFO L87 Difference]: Start difference. First operand 165829 states and 759545 transitions. Second operand has 23 states, 23 states have (on average 9.434782608695652) internal successors, (217), 23 states have internal predecessors, (217), 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) [2022-01-18 02:34:53,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 02:34:53,294 INFO L93 Difference]: Finished difference Result 1749100 states and 7999941 transitions. [2022-01-18 02:34:53,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 503 states. [2022-01-18 02:34:53,295 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 9.434782608695652) internal successors, (217), 23 states have internal predecessors, (217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2022-01-18 02:34:53,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 02:35:11,167 INFO L225 Difference]: With dead ends: 1749100 [2022-01-18 02:35:11,167 INFO L226 Difference]: Without dead ends: 1695427 [2022-01-18 02:35:11,185 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1212 GetRequests, 702 SyntacticMatches, 0 SemanticMatches, 510 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 118629 ImplicationChecksByTransitivity, 22.9s TimeCoverageRelationStatistics Valid=19581, Invalid=242051, Unknown=0, NotChecked=0, Total=261632 [2022-01-18 02:35:11,185 INFO L933 BasicCegarLoop]: 1354 mSDtfsCounter, 3758 mSDsluCounter, 18816 mSDsCounter, 0 mSdLazyCounter, 9268 mSolverCounterSat, 184 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3758 SdHoareTripleChecker+Valid, 17987 SdHoareTripleChecker+Invalid, 9452 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 184 IncrementalHoareTripleChecker+Valid, 9268 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2022-01-18 02:35:11,185 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3758 Valid, 17987 Invalid, 9452 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [184 Valid, 9268 Invalid, 0 Unknown, 0 Unchecked, 5.8s Time] [2022-01-18 02:35:15,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1695427 states. [2022-01-18 02:36:13,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1695427 to 579945. [2022-01-18 02:36:15,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 579945 states, 579944 states have (on average 4.729810119597754) internal successors, (2743025), 579944 states have internal predecessors, (2743025), 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) [2022-01-18 02:36:23,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 579945 states to 579945 states and 2743025 transitions. [2022-01-18 02:36:23,251 INFO L78 Accepts]: Start accepts. Automaton has 579945 states and 2743025 transitions. Word has length 113 [2022-01-18 02:36:23,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 02:36:23,252 INFO L470 AbstractCegarLoop]: Abstraction has 579945 states and 2743025 transitions. [2022-01-18 02:36:23,252 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 9.434782608695652) internal successors, (217), 23 states have internal predecessors, (217), 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) [2022-01-18 02:36:23,252 INFO L276 IsEmpty]: Start isEmpty. Operand 579945 states and 2743025 transitions. [2022-01-18 02:36:27,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-01-18 02:36:27,783 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 02:36:27,783 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 02:36:27,799 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2022-01-18 02:36:27,999 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 02:36:27,999 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 02:36:28,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 02:36:28,001 INFO L85 PathProgramCache]: Analyzing trace with hash 1831613416, now seen corresponding path program 4 times [2022-01-18 02:36:28,001 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 02:36:28,001 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1240948073] [2022-01-18 02:36:28,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 02:36:28,001 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 02:36:28,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 02:36:28,207 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-18 02:36:28,208 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 02:36:28,208 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1240948073] [2022-01-18 02:36:28,208 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1240948073] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 02:36:28,208 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1582023632] [2022-01-18 02:36:28,208 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-01-18 02:36:28,208 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 02:36:28,208 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 02:36:28,228 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 02:36:28,272 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-01-18 02:36:28,386 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-01-18 02:36:28,386 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-18 02:36:28,387 INFO L263 TraceCheckSpWp]: Trace formula consists of 293 conjuncts, 14 conjunts are in the unsatisfiable core [2022-01-18 02:36:28,388 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 02:36:28,621 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-18 02:36:28,621 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 02:36:28,977 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-18 02:36:28,978 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1582023632] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 02:36:28,978 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 02:36:28,978 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 16 [2022-01-18 02:36:28,978 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [982190992] [2022-01-18 02:36:28,978 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 02:36:28,978 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 02:36:28,978 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 02:36:28,979 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 02:36:28,979 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=197, Unknown=0, NotChecked=0, Total=240 [2022-01-18 02:36:28,979 INFO L87 Difference]: Start difference. First operand 579945 states and 2743025 transitions. Second operand has 16 states, 16 states have (on average 8.375) internal successors, (134), 16 states have internal predecessors, (134), 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)