/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-POR-NewStatesSleepPersistentFixedOrder-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/weaver/parallel-misc-3-extended.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-ba0fd47f62a02cd5486659f03d300faf678a2e90-ba0fd47 [2021-11-13 21:18:37,016 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-13 21:18:37,017 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-13 21:18:37,076 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-13 21:18:37,076 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-13 21:18:37,077 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-13 21:18:37,077 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-13 21:18:37,078 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-13 21:18:37,079 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-13 21:18:37,080 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-13 21:18:37,080 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-13 21:18:37,081 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-13 21:18:37,081 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-13 21:18:37,082 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-13 21:18:37,082 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-13 21:18:37,083 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-13 21:18:37,083 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-13 21:18:37,084 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-13 21:18:37,085 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-13 21:18:37,086 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-13 21:18:37,087 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-13 21:18:37,090 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-13 21:18:37,090 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-13 21:18:37,091 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-13 21:18:37,092 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-11-13 21:18:37,097 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-13 21:18:37,098 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-13 21:18:37,098 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-13 21:18:37,100 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-POR-NewStatesSleepPersistentFixedOrder-NoLbe.epf [2021-11-13 21:18:37,114 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-13 21:18:37,115 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-13 21:18:37,115 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-13 21:18:37,115 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-13 21:18:37,115 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-13 21:18:37,116 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-13 21:18:37,116 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-13 21:18:37,116 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-13 21:18:37,116 INFO L138 SettingsManager]: * Use SBE=true [2021-11-13 21:18:37,116 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-13 21:18:37,116 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-13 21:18:37,117 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-13 21:18:37,117 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-13 21:18:37,117 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-13 21:18:37,117 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-13 21:18:37,117 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-13 21:18:37,117 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-13 21:18:37,117 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-13 21:18:37,117 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-13 21:18:37,118 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-13 21:18:37,118 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-13 21:18:37,118 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-13 21:18:37,118 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-13 21:18:37,118 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-11-13 21:18:37,118 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-13 21:18:37,118 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 21:18:37,118 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-13 21:18:37,119 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-13 21:18:37,119 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-13 21:18:37,119 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-13 21:18:37,119 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-13 21:18:37,119 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-13 21:18:37,119 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-11-13 21:18:37,119 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-13 21:18:37,119 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2021-11-13 21:18:37,119 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2021-11-13 21:18:37,120 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-11-13 21:18:37,286 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-13 21:18:37,320 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-13 21:18:37,322 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-13 21:18:37,322 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-13 21:18:37,323 INFO L275 PluginConnector]: CDTParser initialized [2021-11-13 21:18:37,324 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/parallel-misc-3-extended.wvr.c [2021-11-13 21:18:37,373 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1b9684b51/9db90b13a8d742649c59e949c773b66c/FLAGf724f571b [2021-11-13 21:18:37,739 INFO L306 CDTParser]: Found 1 translation units. [2021-11-13 21:18:37,739 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-misc-3-extended.wvr.c [2021-11-13 21:18:37,747 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1b9684b51/9db90b13a8d742649c59e949c773b66c/FLAGf724f571b [2021-11-13 21:18:37,758 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1b9684b51/9db90b13a8d742649c59e949c773b66c [2021-11-13 21:18:37,759 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-13 21:18:37,760 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-11-13 21:18:37,761 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-13 21:18:37,761 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-13 21:18:37,763 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-13 21:18:37,764 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 09:18:37" (1/1) ... [2021-11-13 21:18:37,764 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7b08151 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:18:37, skipping insertion in model container [2021-11-13 21:18:37,765 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 09:18:37" (1/1) ... [2021-11-13 21:18:37,778 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-13 21:18:37,789 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-13 21:18:37,919 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-misc-3-extended.wvr.c[2856,2869] [2021-11-13 21:18:37,921 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 21:18:37,926 INFO L203 MainTranslator]: Completed pre-run [2021-11-13 21:18:37,941 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-misc-3-extended.wvr.c[2856,2869] [2021-11-13 21:18:37,942 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 21:18:37,950 INFO L208 MainTranslator]: Completed translation [2021-11-13 21:18:37,951 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:18:37 WrapperNode [2021-11-13 21:18:37,951 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-13 21:18:37,952 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-13 21:18:37,952 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-13 21:18:37,952 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-13 21:18:37,956 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:18:37" (1/1) ... [2021-11-13 21:18:37,967 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:18:37" (1/1) ... [2021-11-13 21:18:37,980 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-13 21:18:37,980 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-13 21:18:37,980 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-13 21:18:37,981 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-13 21:18:37,986 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:18:37" (1/1) ... [2021-11-13 21:18:37,986 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:18:37" (1/1) ... [2021-11-13 21:18:37,989 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:18:37" (1/1) ... [2021-11-13 21:18:37,990 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:18:37" (1/1) ... [2021-11-13 21:18:37,993 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:18:37" (1/1) ... [2021-11-13 21:18:38,005 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:18:37" (1/1) ... [2021-11-13 21:18:38,006 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:18:37" (1/1) ... [2021-11-13 21:18:38,007 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-13 21:18:38,008 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-13 21:18:38,008 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-13 21:18:38,008 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-13 21:18:38,009 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:18:37" (1/1) ... [2021-11-13 21:18:38,014 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 21:18:38,022 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-13 21:18:38,030 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) [2021-11-13 21:18:38,032 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 [2021-11-13 21:18:38,082 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-13 21:18:38,082 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-11-13 21:18:38,083 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-11-13 21:18:38,083 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-11-13 21:18:38,083 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-11-13 21:18:38,083 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-11-13 21:18:38,086 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-11-13 21:18:38,087 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-13 21:18:38,087 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-13 21:18:38,087 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-13 21:18:38,087 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-11-13 21:18:38,087 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-11-13 21:18:38,087 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-13 21:18:38,087 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-13 21:18:38,087 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-13 21:18:38,087 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-13 21:18:38,088 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-11-13 21:18:38,527 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-13 21:18:38,527 INFO L299 CfgBuilder]: Removed 3 assume(true) statements. [2021-11-13 21:18:38,529 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 09:18:38 BoogieIcfgContainer [2021-11-13 21:18:38,529 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-13 21:18:38,530 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-13 21:18:38,530 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-13 21:18:38,535 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-13 21:18:38,535 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 09:18:37" (1/3) ... [2021-11-13 21:18:38,535 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@148cc4c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 09:18:38, skipping insertion in model container [2021-11-13 21:18:38,535 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:18:37" (2/3) ... [2021-11-13 21:18:38,536 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@148cc4c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 09:18:38, skipping insertion in model container [2021-11-13 21:18:38,536 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 09:18:38" (3/3) ... [2021-11-13 21:18:38,537 INFO L111 eAbstractionObserver]: Analyzing ICFG parallel-misc-3-extended.wvr.c [2021-11-13 21:18:38,541 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-11-13 21:18:38,541 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-13 21:18:38,541 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-13 21:18:38,541 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-11-13 21:18:38,575 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 21:18:38,575 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 21:18:38,575 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 21:18:38,575 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 21:18:38,575 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 21:18:38,576 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 21:18:38,576 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 21:18:38,576 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 21:18:38,576 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 21:18:38,576 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 21:18:38,576 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 21:18:38,577 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 21:18:38,577 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 21:18:38,577 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 21:18:38,577 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 21:18:38,577 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 21:18:38,577 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 21:18:38,578 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 21:18:38,578 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 21:18:38,578 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 21:18:38,579 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 21:18:38,579 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 21:18:38,580 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 21:18:38,580 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 21:18:38,580 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 21:18:38,580 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 21:18:38,581 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 21:18:38,581 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 21:18:38,583 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 21:18:38,583 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 21:18:38,584 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 21:18:38,584 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 21:18:38,584 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 21:18:38,584 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 21:18:38,585 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 21:18:38,585 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 21:18:38,585 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 21:18:38,585 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 21:18:38,585 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 21:18:38,585 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 21:18:38,592 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 21:18:38,592 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 21:18:38,592 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 21:18:38,592 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 21:18:38,592 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 21:18:38,593 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 21:18:38,593 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 21:18:38,593 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 21:18:38,594 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 21:18:38,594 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 21:18:38,594 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 21:18:38,601 INFO L148 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2021-11-13 21:18:38,635 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-11-13 21:18:38,635 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-13 21:18:38,636 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2021-11-13 21:18:38,637 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2021-11-13 21:18:38,659 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2021-11-13 21:18:38,664 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=PARTIAL_ORDER_FA, 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 [2021-11-13 21:18:38,664 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-11-13 21:18:38,792 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-13 21:18:38,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 21:18:38,796 INFO L85 PathProgramCache]: Analyzing trace with hash 1694568872, now seen corresponding path program 1 times [2021-11-13 21:18:38,802 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 21:18:38,802 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [462744909] [2021-11-13 21:18:38,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 21:18:38,802 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 21:18:38,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 21:18:38,998 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 21:18:38,999 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 21:18:38,999 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [462744909] [2021-11-13 21:18:39,000 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [462744909] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 21:18:39,000 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 21:18:39,000 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-13 21:18:39,002 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1102177480] [2021-11-13 21:18:39,002 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 21:18:39,006 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-13 21:18:39,007 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 21:18:39,023 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-13 21:18:39,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-13 21:18:39,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-13 21:18:39,028 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-13 21:18:39,030 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 36.0) internal successors, (72), 2 states have internal predecessors, (72), 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) [2021-11-13 21:18:39,030 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-13 21:18:39,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-13 21:18:39,075 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-13 21:18:39,075 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-13 21:18:39,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 21:18:39,076 INFO L85 PathProgramCache]: Analyzing trace with hash 448862425, now seen corresponding path program 1 times [2021-11-13 21:18:39,076 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 21:18:39,077 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1162980551] [2021-11-13 21:18:39,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 21:18:39,077 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 21:18:39,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 21:18:39,228 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 21:18:39,228 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 21:18:39,228 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1162980551] [2021-11-13 21:18:39,229 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1162980551] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 21:18:39,229 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 21:18:39,229 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-13 21:18:39,229 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1195069978] [2021-11-13 21:18:39,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 21:18:39,230 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-13 21:18:39,230 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 21:18:39,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-13 21:18:39,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 21:18:39,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-13 21:18:39,231 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-13 21:18:39,232 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 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) [2021-11-13 21:18:39,232 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-13 21:18:39,232 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-13 21:18:39,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-13 21:18:39,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 21:18:39,286 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-13 21:18:39,287 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-13 21:18:39,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 21:18:39,287 INFO L85 PathProgramCache]: Analyzing trace with hash 2030422273, now seen corresponding path program 1 times [2021-11-13 21:18:39,287 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 21:18:39,288 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1783245834] [2021-11-13 21:18:39,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 21:18:39,288 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 21:18:39,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 21:18:39,396 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-13 21:18:39,397 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 21:18:39,397 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1783245834] [2021-11-13 21:18:39,397 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1783245834] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 21:18:39,397 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 21:18:39,397 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-13 21:18:39,398 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1093611468] [2021-11-13 21:18:39,398 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 21:18:39,398 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-13 21:18:39,398 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 21:18:39,399 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-13 21:18:39,399 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 21:18:39,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-13 21:18:39,399 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-13 21:18:39,400 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 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) [2021-11-13 21:18:39,400 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-13 21:18:39,400 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-13 21:18:39,400 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-13 21:18:39,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-13 21:18:39,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 21:18:39,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 21:18:39,441 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-13 21:18:39,441 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-13 21:18:39,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 21:18:39,442 INFO L85 PathProgramCache]: Analyzing trace with hash 878930777, now seen corresponding path program 1 times [2021-11-13 21:18:39,442 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 21:18:39,442 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1545833466] [2021-11-13 21:18:39,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 21:18:39,443 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 21:18:39,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 21:18:39,540 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-13 21:18:39,540 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 21:18:39,540 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1545833466] [2021-11-13 21:18:39,541 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1545833466] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 21:18:39,541 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 21:18:39,541 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-13 21:18:39,541 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [210334444] [2021-11-13 21:18:39,541 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 21:18:39,541 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-13 21:18:39,542 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 21:18:39,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-13 21:18:39,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 21:18:39,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-13 21:18:39,542 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-13 21:18:39,543 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 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) [2021-11-13 21:18:39,543 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-13 21:18:39,543 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-13 21:18:39,543 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-13 21:18:39,543 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-13 21:18:39,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-13 21:18:39,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 21:18:39,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 21:18:39,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 21:18:39,578 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-13 21:18:39,578 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-13 21:18:39,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 21:18:39,578 INFO L85 PathProgramCache]: Analyzing trace with hash 1865369985, now seen corresponding path program 1 times [2021-11-13 21:18:39,579 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 21:18:39,579 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2067718831] [2021-11-13 21:18:39,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 21:18:39,579 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 21:18:39,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 21:18:39,691 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-13 21:18:39,691 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 21:18:39,692 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2067718831] [2021-11-13 21:18:39,692 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2067718831] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 21:18:39,692 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 21:18:39,692 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-13 21:18:39,692 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [424772707] [2021-11-13 21:18:39,692 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 21:18:39,693 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-13 21:18:39,693 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 21:18:39,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-13 21:18:39,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-13 21:18:39,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-13 21:18:39,693 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-13 21:18:39,693 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.75) internal successors, (95), 4 states have internal predecessors, (95), 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) [2021-11-13 21:18:39,694 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-13 21:18:39,694 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-13 21:18:39,694 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-13 21:18:39,694 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-13 21:18:39,694 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-13 21:18:39,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-13 21:18:39,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 21:18:39,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 21:18:39,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 21:18:39,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-13 21:18:39,771 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-13 21:18:39,772 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-13 21:18:39,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 21:18:39,773 INFO L85 PathProgramCache]: Analyzing trace with hash -1365112618, now seen corresponding path program 1 times [2021-11-13 21:18:39,773 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 21:18:39,773 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [375991795] [2021-11-13 21:18:39,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 21:18:39,774 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 21:18:39,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 21:18:39,893 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-11-13 21:18:39,897 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 21:18:39,897 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [375991795] [2021-11-13 21:18:39,897 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [375991795] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 21:18:39,897 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 21:18:39,898 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-13 21:18:39,898 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [54265968] [2021-11-13 21:18:39,898 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 21:18:39,899 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-13 21:18:39,899 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 21:18:39,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-13 21:18:39,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-13 21:18:39,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-13 21:18:39,900 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-13 21:18:39,900 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) [2021-11-13 21:18:39,901 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-13 21:18:39,901 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-13 21:18:39,901 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-13 21:18:39,901 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-13 21:18:39,901 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-11-13 21:18:39,901 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-13 21:18:39,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-13 21:18:39,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 21:18:39,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 21:18:39,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 21:18:39,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-13 21:18:39,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-13 21:18:39,952 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-13 21:18:39,953 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-13 21:18:39,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 21:18:39,953 INFO L85 PathProgramCache]: Analyzing trace with hash 1787867066, now seen corresponding path program 1 times [2021-11-13 21:18:39,954 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 21:18:39,954 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019080133] [2021-11-13 21:18:39,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 21:18:39,954 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 21:18:39,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 21:18:40,055 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-13 21:18:40,055 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 21:18:40,055 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019080133] [2021-11-13 21:18:40,058 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2019080133] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 21:18:40,058 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 21:18:40,058 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-13 21:18:40,058 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [761480690] [2021-11-13 21:18:40,059 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 21:18:40,060 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-13 21:18:40,060 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 21:18:40,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-13 21:18:40,061 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-13 21:18:40,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-13 21:18:40,061 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-13 21:18:40,061 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.25) internal successors, (101), 4 states have internal predecessors, (101), 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) [2021-11-13 21:18:40,062 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-13 21:18:40,062 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-13 21:18:40,062 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-13 21:18:40,062 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-13 21:18:40,062 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-11-13 21:18:40,062 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-11-13 21:18:40,062 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-13 21:18:40,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-13 21:18:40,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 21:18:40,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 21:18:40,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 21:18:40,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-13 21:18:40,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-13 21:18:40,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-13 21:18:40,099 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-13 21:18:40,099 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-13 21:18:40,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 21:18:40,100 INFO L85 PathProgramCache]: Analyzing trace with hash 338252765, now seen corresponding path program 1 times [2021-11-13 21:18:40,100 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 21:18:40,100 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [266973595] [2021-11-13 21:18:40,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 21:18:40,100 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 21:18:40,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 21:18:40,250 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-13 21:18:40,250 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 21:18:40,251 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [266973595] [2021-11-13 21:18:40,251 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [266973595] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-13 21:18:40,251 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [868989957] [2021-11-13 21:18:40,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 21:18:40,251 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 21:18:40,251 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-13 21:18:40,252 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) [2021-11-13 21:18:40,280 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-13 21:18:40,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 21:18:40,319 INFO L263 TraceCheckSpWp]: Trace formula consists of 231 conjuncts, 19 conjunts are in the unsatisfiable core [2021-11-13 21:18:40,323 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 21:18:40,633 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-13 21:18:40,634 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 21:18:40,890 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-13 21:18:40,891 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [868989957] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-13 21:18:40,891 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-13 21:18:40,891 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 7 [2021-11-13 21:18:40,891 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [908139229] [2021-11-13 21:18:40,891 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-13 21:18:40,892 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-13 21:18:40,892 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 21:18:40,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-13 21:18:40,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-13 21:18:40,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-13 21:18:40,893 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-13 21:18:40,893 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.714285714285714) internal successors, (110), 7 states have internal predecessors, (110), 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) [2021-11-13 21:18:40,893 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-13 21:18:40,893 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-13 21:18:40,893 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-13 21:18:40,893 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-13 21:18:40,893 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-11-13 21:18:40,893 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-11-13 21:18:40,893 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-11-13 21:18:40,893 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-13 21:18:40,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-13 21:18:40,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 21:18:40,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 21:18:40,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 21:18:40,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-13 21:18:40,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-13 21:18:40,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-13 21:18:40,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-13 21:18:40,998 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-13 21:18:41,185 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,SelfDestructingSolverStorable7 [2021-11-13 21:18:41,186 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-13 21:18:41,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 21:18:41,186 INFO L85 PathProgramCache]: Analyzing trace with hash 654619498, now seen corresponding path program 2 times [2021-11-13 21:18:41,186 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 21:18:41,186 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [745958723] [2021-11-13 21:18:41,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 21:18:41,186 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 21:18:41,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 21:18:41,227 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-11-13 21:18:41,227 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 21:18:41,227 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [745958723] [2021-11-13 21:18:41,228 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [745958723] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 21:18:41,228 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 21:18:41,228 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-13 21:18:41,228 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [93452376] [2021-11-13 21:18:41,228 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 21:18:41,229 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-13 21:18:41,229 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 21:18:41,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-13 21:18:41,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 21:18:41,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-13 21:18:41,231 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-13 21:18:41,232 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 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) [2021-11-13 21:18:41,232 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-13 21:18:41,232 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-13 21:18:41,232 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-13 21:18:41,232 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-13 21:18:41,233 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-11-13 21:18:41,233 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-11-13 21:18:41,233 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-11-13 21:18:41,233 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-11-13 21:18:41,233 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-13 21:18:41,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-13 21:18:41,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 21:18:41,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 21:18:41,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 21:18:41,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-13 21:18:41,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-13 21:18:41,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-13 21:18:41,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-13 21:18:41,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 21:18:41,267 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-13 21:18:41,267 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-13 21:18:41,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 21:18:41,268 INFO L85 PathProgramCache]: Analyzing trace with hash -994184303, now seen corresponding path program 3 times [2021-11-13 21:18:41,268 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 21:18:41,269 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1599901106] [2021-11-13 21:18:41,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 21:18:41,269 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 21:18:41,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 21:18:41,298 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-11-13 21:18:41,298 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 21:18:41,298 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1599901106] [2021-11-13 21:18:41,299 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1599901106] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 21:18:41,299 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 21:18:41,299 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-13 21:18:41,299 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [965111386] [2021-11-13 21:18:41,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 21:18:41,299 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-13 21:18:41,299 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 21:18:41,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-13 21:18:41,301 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 21:18:41,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-13 21:18:41,301 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-13 21:18:41,301 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 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) [2021-11-13 21:18:41,301 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-13 21:18:41,301 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-13 21:18:41,301 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-13 21:18:41,301 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-13 21:18:41,301 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-11-13 21:18:41,301 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-11-13 21:18:41,301 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-11-13 21:18:41,301 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-11-13 21:18:41,301 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-13 21:18:41,301 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-13 21:18:41,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-13 21:18:41,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 21:18:41,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 21:18:41,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 21:18:41,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-13 21:18:41,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-13 21:18:41,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-13 21:18:41,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-13 21:18:41,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 21:18:41,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 21:18:41,340 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-13 21:18:41,340 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-13 21:18:41,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 21:18:41,341 INFO L85 PathProgramCache]: Analyzing trace with hash -1848113736, now seen corresponding path program 4 times [2021-11-13 21:18:41,341 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 21:18:41,341 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1515178065] [2021-11-13 21:18:41,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 21:18:41,341 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 21:18:41,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 21:18:41,367 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-11-13 21:18:41,367 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 21:18:41,367 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1515178065] [2021-11-13 21:18:41,367 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1515178065] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 21:18:41,367 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 21:18:41,367 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-13 21:18:41,367 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [222302824] [2021-11-13 21:18:41,368 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 21:18:41,368 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-13 21:18:41,368 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 21:18:41,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-13 21:18:41,369 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 21:18:41,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-13 21:18:41,369 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-13 21:18:41,369 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 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) [2021-11-13 21:18:41,369 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-13 21:18:41,369 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-13 21:18:41,369 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-13 21:18:41,369 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-13 21:18:41,369 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-11-13 21:18:41,369 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-11-13 21:18:41,369 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-11-13 21:18:41,369 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-11-13 21:18:41,369 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-13 21:18:41,369 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-13 21:18:41,370 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-13 21:18:41,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-13 21:18:41,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 21:18:41,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 21:18:41,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 21:18:41,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-13 21:18:41,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-13 21:18:41,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-13 21:18:41,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-13 21:18:41,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 21:18:41,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 21:18:41,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 21:18:41,392 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2021-11-13 21:18:41,392 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION (2 of 4 remaining) [2021-11-13 21:18:41,392 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION (1 of 4 remaining) [2021-11-13 21:18:41,393 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATION (0 of 4 remaining) [2021-11-13 21:18:41,394 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-13 21:18:41,399 INFO L732 BasicCegarLoop]: Path program histogram: [4, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 21:18:41,400 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-11-13 21:18:41,400 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-13 21:18:41,403 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.11 09:18:41 BasicIcfg [2021-11-13 21:18:41,403 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-13 21:18:41,406 INFO L158 Benchmark]: Toolchain (without parser) took 3643.37ms. Allocated memory was 413.1MB in the beginning and 574.6MB in the end (delta: 161.5MB). Free memory was 354.6MB in the beginning and 266.0MB in the end (delta: 88.6MB). Peak memory consumption was 249.0MB. Max. memory is 16.0GB. [2021-11-13 21:18:41,406 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 413.1MB. Free memory is still 370.9MB. There was no memory consumed. Max. memory is 16.0GB. [2021-11-13 21:18:41,406 INFO L158 Benchmark]: CACSL2BoogieTranslator took 189.95ms. Allocated memory was 413.1MB in the beginning and 574.6MB in the end (delta: 161.5MB). Free memory was 354.5MB in the beginning and 543.9MB in the end (delta: -189.4MB). Peak memory consumption was 4.3MB. Max. memory is 16.0GB. [2021-11-13 21:18:41,406 INFO L158 Benchmark]: Boogie Procedure Inliner took 28.31ms. Allocated memory is still 574.6MB. Free memory was 543.9MB in the beginning and 541.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2021-11-13 21:18:41,407 INFO L158 Benchmark]: Boogie Preprocessor took 26.91ms. Allocated memory is still 574.6MB. Free memory was 541.8MB in the beginning and 540.7MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2021-11-13 21:18:41,407 INFO L158 Benchmark]: RCFGBuilder took 521.40ms. Allocated memory is still 574.6MB. Free memory was 540.7MB in the beginning and 523.9MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.0GB. [2021-11-13 21:18:41,407 INFO L158 Benchmark]: TraceAbstraction took 2872.94ms. Allocated memory is still 574.6MB. Free memory was 522.9MB in the beginning and 266.0MB in the end (delta: 256.9MB). Peak memory consumption was 257.9MB. Max. memory is 16.0GB. [2021-11-13 21:18:41,408 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 413.1MB. Free memory is still 370.9MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 189.95ms. Allocated memory was 413.1MB in the beginning and 574.6MB in the end (delta: 161.5MB). Free memory was 354.5MB in the beginning and 543.9MB in the end (delta: -189.4MB). Peak memory consumption was 4.3MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 28.31ms. Allocated memory is still 574.6MB. Free memory was 543.9MB in the beginning and 541.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 26.91ms. Allocated memory is still 574.6MB. Free memory was 541.8MB in the beginning and 540.7MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 521.40ms. Allocated memory is still 574.6MB. Free memory was 540.7MB in the beginning and 523.9MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.0GB. * TraceAbstraction took 2872.94ms. Allocated memory is still 574.6MB. Free memory was 522.9MB in the beginning and 266.0MB in the end (delta: 256.9MB). Peak memory consumption was 257.9MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 13049, positive: 10154, positive conditional: 7619, positive unconditional: 2535, negative: 2895, negative conditional: 2892, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 10157, positive: 10154, positive conditional: 7619, positive unconditional: 2535, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 10157, positive: 10154, positive conditional: 7619, positive unconditional: 2535, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 10157, positive: 10154, positive conditional: 6875, positive unconditional: 3279, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 10157, positive: 10154, positive conditional: 1519, positive unconditional: 8635, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 10157, positive: 10154, positive conditional: 1519, positive unconditional: 8635, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2392, positive: 2389, positive conditional: 0, positive unconditional: 2389, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2392, positive: 2377, positive conditional: 0, positive unconditional: 2377, negative: 15, negative conditional: 0, negative unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 15, positive: 12, positive conditional: 0, positive unconditional: 12, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 50, positive: 21, positive conditional: 0, positive unconditional: 21, negative: 29, negative conditional: 0, negative unconditional: 29, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 10157, positive: 7765, positive conditional: 1519, positive unconditional: 6246, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 2392, unknown conditional: 0, unknown unconditional: 2392] , Statistics on independence cache: Total cache size (in pairs): 2392, Positive cache size: 2389, Positive conditional cache size: 0, Positive unconditional cache size: 2389, Negative cache size: 3, Negative conditional cache size: 0, Negative unconditional cache size: 3, Eliminated conditions: 5356, Maximal queried relation: 0, Independence queries for same thread: 2892 - StatisticsResult: Persistent set benchmarks Persistent set computation time: 104.60ms, Number of persistent set computation: 99, Number of trivial persistent sets: 48, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2538, positive: 2535, positive conditional: 0, positive unconditional: 2535, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 13049, positive: 10154, positive conditional: 7619, positive unconditional: 2535, negative: 2895, negative conditional: 2892, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 10157, positive: 10154, positive conditional: 7619, positive unconditional: 2535, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 10157, positive: 10154, positive conditional: 7619, positive unconditional: 2535, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 10157, positive: 10154, positive conditional: 6875, positive unconditional: 3279, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 10157, positive: 10154, positive conditional: 1519, positive unconditional: 8635, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 10157, positive: 10154, positive conditional: 1519, positive unconditional: 8635, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2392, positive: 2389, positive conditional: 0, positive unconditional: 2389, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2392, positive: 2377, positive conditional: 0, positive unconditional: 2377, negative: 15, negative conditional: 0, negative unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 15, positive: 12, positive conditional: 0, positive unconditional: 12, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 50, positive: 21, positive conditional: 0, positive unconditional: 21, negative: 29, negative conditional: 0, negative unconditional: 29, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 10157, positive: 7765, positive conditional: 1519, positive unconditional: 6246, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 2392, unknown conditional: 0, unknown unconditional: 2392] , Statistics on independence cache: Total cache size (in pairs): 2392, Positive cache size: 2389, Positive conditional cache size: 0, Positive unconditional cache size: 2389, Negative cache size: 3, Negative conditional cache size: 0, Negative unconditional cache size: 3, Eliminated conditions: 5356, Maximal queried relation: 0, Independence queries for same thread: 2892 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 127]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 7 procedures, 156 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 2.8s, OverallIterations: 11, TraceHistogramMax: 0, PathProgramHistogramMax: 4, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.6s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 41, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 1174 NumberOfCodeBlocks, 1174 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 1271 ConstructedInterpolants, 0 QuantifiedInterpolants, 2418 SizeOfPredicates, 2 NumberOfNonLiveVariables, 231 ConjunctsInSsa, 19 ConjunctsInUnsatCore, 13 InterpolantComputations, 10 PerfectInterpolantSequences, 120/165 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2021-11-13 21:18:41,437 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Forceful destruction successful, exit code 0 [2021-11-13 21:18:41,649 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...