/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/goblint-regression/28-race_reach_21-deref_read_racing.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-c7b2d19 [2022-03-15 13:29:54,047 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-15 13:29:54,048 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-15 13:29:54,122 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-03-15 13:29:54,169 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-15 13:29:54,170 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-15 13:29:54,170 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-15 13:29:54,172 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf [2022-03-15 13:29:54,202 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-15 13:29:54,202 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-15 13:29:54,203 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-03-15 13:29:54,203 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-03-15 13:29:54,204 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-15 13:29:54,204 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-15 13:29:54,205 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-15 13:29:54,205 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-15 13:29:54,205 INFO L138 SettingsManager]: * Use SBE=true [2022-03-15 13:29:54,205 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-15 13:29:54,206 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-15 13:29:54,206 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-15 13:29:54,206 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-15 13:29:54,206 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-15 13:29:54,206 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-15 13:29:54,207 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-15 13:29:54,207 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-15 13:29:54,207 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-15 13:29:54,207 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-15 13:29:54,207 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-15 13:29:54,207 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-15 13:29:54,207 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-15 13:29:54,207 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-15 13:29:54,208 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-15 13:29:54,208 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-15 13:29:54,208 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-15 13:29:54,208 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-15 13:29:54,208 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-03-15 13:29:54,208 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-15 13:29:54,208 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-15 13:29:54,209 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-15 13:29:54,209 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-03-15 13:29:54,209 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-15 13:29:54,209 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-03-15 13:29:54,446 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-15 13:29:54,463 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-15 13:29:54,466 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-15 13:29:54,467 INFO L271 PluginConnector]: Initializing CDTParser... [2022-03-15 13:29:54,467 INFO L275 PluginConnector]: CDTParser initialized [2022-03-15 13:29:54,469 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/28-race_reach_21-deref_read_racing.i [2022-03-15 13:29:54,520 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5dc44c3b8/3fafb5900d114ed4a0d07a13a67b7314/FLAGfecd139e3 [2022-03-15 13:29:54,943 INFO L306 CDTParser]: Found 1 translation units. [2022-03-15 13:29:54,943 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_21-deref_read_racing.i [2022-03-15 13:29:54,962 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5dc44c3b8/3fafb5900d114ed4a0d07a13a67b7314/FLAGfecd139e3 [2022-03-15 13:29:54,979 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5dc44c3b8/3fafb5900d114ed4a0d07a13a67b7314 [2022-03-15 13:29:54,981 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-15 13:29:54,982 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-03-15 13:29:54,985 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-03-15 13:29:54,985 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-03-15 13:29:54,988 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-03-15 13:29:54,988 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.03 01:29:54" (1/1) ... [2022-03-15 13:29:54,989 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d68e0e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 01:29:54, skipping insertion in model container [2022-03-15 13:29:54,989 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.03 01:29:54" (1/1) ... [2022-03-15 13:29:54,996 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-03-15 13:29:55,039 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-03-15 13:29:55,357 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_21-deref_read_racing.i[30176,30189] [2022-03-15 13:29:55,379 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-15 13:29:55,386 INFO L203 MainTranslator]: Completed pre-run [2022-03-15 13:29:55,412 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_21-deref_read_racing.i[30176,30189] [2022-03-15 13:29:55,418 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-15 13:29:55,450 INFO L208 MainTranslator]: Completed translation [2022-03-15 13:29:55,450 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 01:29:55 WrapperNode [2022-03-15 13:29:55,450 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-03-15 13:29:55,451 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-03-15 13:29:55,452 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-03-15 13:29:55,452 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-03-15 13:29:55,458 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 01:29:55" (1/1) ... [2022-03-15 13:29:55,472 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 01:29:55" (1/1) ... [2022-03-15 13:29:55,491 INFO L137 Inliner]: procedures = 170, calls = 35, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 65 [2022-03-15 13:29:55,491 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-03-15 13:29:55,492 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-15 13:29:55,492 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-15 13:29:55,492 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-15 13:29:55,497 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 01:29:55" (1/1) ... [2022-03-15 13:29:55,497 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 01:29:55" (1/1) ... [2022-03-15 13:29:55,500 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 01:29:55" (1/1) ... [2022-03-15 13:29:55,500 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 01:29:55" (1/1) ... [2022-03-15 13:29:55,506 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 01:29:55" (1/1) ... [2022-03-15 13:29:55,509 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 01:29:55" (1/1) ... [2022-03-15 13:29:55,511 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 01:29:55" (1/1) ... [2022-03-15 13:29:55,513 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-15 13:29:55,514 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-15 13:29:55,514 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-15 13:29:55,514 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-15 13:29:55,521 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 01:29:55" (1/1) ... [2022-03-15 13:29:55,529 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-15 13:29:55,544 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 13:29:55,565 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-03-15 13:29:55,586 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-03-15 13:29:55,603 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-03-15 13:29:55,603 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-03-15 13:29:55,603 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-03-15 13:29:55,603 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-03-15 13:29:55,603 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-03-15 13:29:55,603 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-03-15 13:29:55,604 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-03-15 13:29:55,605 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-03-15 13:29:55,605 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-03-15 13:29:55,606 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-15 13:29:55,606 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-15 13:29:55,607 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-03-15 13:29:55,717 INFO L234 CfgBuilder]: Building ICFG [2022-03-15 13:29:55,719 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-15 13:29:55,908 INFO L275 CfgBuilder]: Performing block encoding [2022-03-15 13:29:55,914 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-15 13:29:55,914 INFO L299 CfgBuilder]: Removed 9 assume(true) statements. [2022-03-15 13:29:55,916 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.03 01:29:55 BoogieIcfgContainer [2022-03-15 13:29:55,916 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-15 13:29:55,918 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-15 13:29:55,918 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-15 13:29:55,920 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-15 13:29:55,921 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.03 01:29:54" (1/3) ... [2022-03-15 13:29:55,921 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3437a0fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.03 01:29:55, skipping insertion in model container [2022-03-15 13:29:55,921 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 01:29:55" (2/3) ... [2022-03-15 13:29:55,922 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3437a0fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.03 01:29:55, skipping insertion in model container [2022-03-15 13:29:55,922 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.03 01:29:55" (3/3) ... [2022-03-15 13:29:55,923 INFO L111 eAbstractionObserver]: Analyzing ICFG 28-race_reach_21-deref_read_racing.i [2022-03-15 13:29:55,927 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-03-15 13:29:55,927 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-03-15 13:29:55,928 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-15 13:29:55,928 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-03-15 13:29:55,955 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:29:55,955 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:29:55,955 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:29:55,955 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:29:55,956 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:29:55,956 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:29:55,956 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:29:55,956 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:29:55,956 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:29:55,957 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:29:55,957 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:29:55,957 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:29:55,957 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:29:55,958 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:29:55,959 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:29:55,959 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:29:55,959 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:29:55,959 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:29:55,960 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:29:55,960 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:29:55,960 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:29:55,960 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:29:55,960 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:29:55,961 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:29:55,961 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:29:55,961 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:29:55,961 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:29:55,961 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:29:55,962 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:29:55,962 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:29:55,962 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:29:55,962 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:29:55,962 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:29:55,963 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:29:55,963 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:29:55,963 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:29:55,963 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:29:55,963 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:29:55,964 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:29:55,964 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:29:55,964 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:29:55,964 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:29:55,964 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:29:55,965 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:29:55,965 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:29:55,965 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:29:55,965 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:29:55,965 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:29:55,969 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:29:55,969 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:29:55,969 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:29:55,969 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:29:55,970 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:29:55,970 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:29:55,970 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:29:55,970 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:29:55,970 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:29:55,970 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:29:55,971 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:29:55,973 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-03-15 13:29:56,015 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-15 13:29:56,021 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mLazyFiniteAutomaton=false, 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, mMcrOptimizeForkJoin=true, mMcrOverapproximateWrwc=true [2022-03-15 13:29:56,021 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-03-15 13:29:56,032 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 96 places, 103 transitions, 211 flow [2022-03-15 13:29:56,118 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 783 states, 780 states have (on average 2.1846153846153844) internal successors, (1704), 782 states have internal predecessors, (1704), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:29:56,122 INFO L276 IsEmpty]: Start isEmpty. Operand has 783 states, 780 states have (on average 2.1846153846153844) internal successors, (1704), 782 states have internal predecessors, (1704), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:29:56,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-03-15 13:29:56,129 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:29:56,130 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:29:56,130 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-03-15 13:29:56,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:29:56,139 INFO L85 PathProgramCache]: Analyzing trace with hash -1011992479, now seen corresponding path program 1 times [2022-03-15 13:29:56,150 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:29:56,151 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1535587346] [2022-03-15 13:29:56,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:29:56,152 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:29:56,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:29:56,415 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:29:56,416 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:29:56,417 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1535587346] [2022-03-15 13:29:56,417 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1535587346] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:29:56,417 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:29:56,418 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-03-15 13:29:56,421 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [553902504] [2022-03-15 13:29:56,422 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:29:56,426 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-03-15 13:29:56,427 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:29:56,457 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-03-15 13:29:56,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-03-15 13:29:56,463 INFO L87 Difference]: Start difference. First operand has 783 states, 780 states have (on average 2.1846153846153844) internal successors, (1704), 782 states have internal predecessors, (1704), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 22.0) internal successors, (44), 2 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:29:56,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:29:56,510 INFO L93 Difference]: Finished difference Result 755 states and 1404 transitions. [2022-03-15 13:29:56,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-15 13:29:56,519 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 22.0) internal successors, (44), 2 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 44 [2022-03-15 13:29:56,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:29:56,543 INFO L225 Difference]: With dead ends: 755 [2022-03-15 13:29:56,543 INFO L226 Difference]: Without dead ends: 643 [2022-03-15 13:29:56,544 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-03-15 13:29:56,550 INFO L933 BasicCegarLoop]: 84 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 84 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-15 13:29:56,557 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 84 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-15 13:29:56,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 643 states. [2022-03-15 13:29:56,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 643 to 643. [2022-03-15 13:29:56,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 643 states, 640 states have (on average 1.85625) internal successors, (1188), 642 states have internal predecessors, (1188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:29:56,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 643 states to 643 states and 1188 transitions. [2022-03-15 13:29:56,643 INFO L78 Accepts]: Start accepts. Automaton has 643 states and 1188 transitions. Word has length 44 [2022-03-15 13:29:56,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:29:56,644 INFO L470 AbstractCegarLoop]: Abstraction has 643 states and 1188 transitions. [2022-03-15 13:29:56,644 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 22.0) internal successors, (44), 2 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:29:56,644 INFO L276 IsEmpty]: Start isEmpty. Operand 643 states and 1188 transitions. [2022-03-15 13:29:56,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-03-15 13:29:56,645 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:29:56,645 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:29:56,646 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-15 13:29:56,646 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-03-15 13:29:56,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:29:56,647 INFO L85 PathProgramCache]: Analyzing trace with hash 1486023458, now seen corresponding path program 1 times [2022-03-15 13:29:56,647 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:29:56,647 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2017068916] [2022-03-15 13:29:56,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:29:56,647 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:29:56,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:29:56,729 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:29:56,729 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:29:56,729 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2017068916] [2022-03-15 13:29:56,730 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2017068916] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:29:56,730 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:29:56,730 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-03-15 13:29:56,730 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1582648961] [2022-03-15 13:29:56,730 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:29:56,731 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-15 13:29:56,731 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:29:56,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-15 13:29:56,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-15 13:29:56,732 INFO L87 Difference]: Start difference. First operand 643 states and 1188 transitions. Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:29:56,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:29:56,753 INFO L93 Difference]: Finished difference Result 632 states and 1177 transitions. [2022-03-15 13:29:56,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-15 13:29:56,753 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 44 [2022-03-15 13:29:56,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:29:56,756 INFO L225 Difference]: With dead ends: 632 [2022-03-15 13:29:56,756 INFO L226 Difference]: Without dead ends: 632 [2022-03-15 13:29:56,756 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-15 13:29:56,758 INFO L933 BasicCegarLoop]: 77 mSDtfsCounter, 34 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 148 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-15 13:29:56,758 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [34 Valid, 148 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-15 13:29:56,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 632 states. [2022-03-15 13:29:56,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 632 to 632. [2022-03-15 13:29:56,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 632 states, 630 states have (on average 1.8682539682539683) internal successors, (1177), 631 states have internal predecessors, (1177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:29:56,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 632 states to 632 states and 1177 transitions. [2022-03-15 13:29:56,775 INFO L78 Accepts]: Start accepts. Automaton has 632 states and 1177 transitions. Word has length 44 [2022-03-15 13:29:56,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:29:56,775 INFO L470 AbstractCegarLoop]: Abstraction has 632 states and 1177 transitions. [2022-03-15 13:29:56,775 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:29:56,775 INFO L276 IsEmpty]: Start isEmpty. Operand 632 states and 1177 transitions. [2022-03-15 13:29:56,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-03-15 13:29:56,777 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:29:56,777 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:29:56,777 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-03-15 13:29:56,777 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-03-15 13:29:56,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:29:56,778 INFO L85 PathProgramCache]: Analyzing trace with hash 455753518, now seen corresponding path program 1 times [2022-03-15 13:29:56,778 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:29:56,778 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1061858486] [2022-03-15 13:29:56,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:29:56,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:29:56,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-03-15 13:29:56,815 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-03-15 13:29:56,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-03-15 13:29:56,886 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-03-15 13:29:56,886 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-03-15 13:29:56,887 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 2 remaining) [2022-03-15 13:29:56,889 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2022-03-15 13:29:56,889 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-03-15 13:29:56,892 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-03-15 13:29:56,893 WARN L235 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2022-03-15 13:29:56,893 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2022-03-15 13:29:56,913 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:29:56,914 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:29:56,914 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:29:56,914 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:29:56,914 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:29:56,914 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:29:56,914 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:29:56,914 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:29:56,915 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:29:56,915 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:29:56,915 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:29:56,915 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:29:56,916 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:29:56,916 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:29:56,916 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:29:56,916 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:29:56,916 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:29:56,916 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:29:56,917 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:29:56,917 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:29:56,917 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:29:56,917 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:29:56,917 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:29:56,917 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:29:56,917 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:29:56,918 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:29:56,918 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:29:56,918 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:29:56,918 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:29:56,918 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:29:56,918 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:29:56,918 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:29:56,918 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:29:56,919 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:29:56,919 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:29:56,919 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:29:56,919 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:29:56,919 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:29:56,919 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:29:56,920 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:29:56,920 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:29:56,920 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:29:56,920 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:29:56,920 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:29:56,920 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:29:56,920 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:29:56,921 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:29:56,921 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:29:56,921 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:29:56,921 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:29:56,921 WARN L322 ript$VariableManager]: TermVariabe t_funThread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:29:56,921 WARN L322 ript$VariableManager]: TermVariabe t_funThread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:29:56,922 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:29:56,922 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:29:56,922 WARN L322 ript$VariableManager]: TermVariabe t_funThread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:29:56,922 WARN L322 ript$VariableManager]: TermVariabe t_funThread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:29:56,922 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:29:56,922 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:29:56,922 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:29:56,922 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:29:56,923 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:29:56,923 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:29:56,923 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:29:56,923 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:29:56,923 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:29:56,923 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:29:56,924 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:29:56,924 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:29:56,924 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:29:56,924 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:29:56,924 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:29:56,924 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:29:56,925 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:29:56,925 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:29:56,925 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:29:56,925 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:29:56,925 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:29:56,925 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:29:56,925 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:29:56,925 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:29:56,926 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:29:56,926 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:29:56,926 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:29:56,926 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:29:56,926 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:29:56,926 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:29:56,927 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:29:56,927 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:29:56,927 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:29:56,930 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:29:56,931 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:29:56,931 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:29:56,931 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:29:56,932 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:29:56,932 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:29:56,932 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:29:56,934 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:29:56,934 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:29:56,934 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:29:56,934 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:29:56,935 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:29:56,935 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:29:56,935 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:29:56,935 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:29:56,935 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:29:56,935 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:29:56,935 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:29:56,938 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:29:56,938 WARN L322 ript$VariableManager]: TermVariabe t_funThread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:29:56,938 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:29:56,947 WARN L322 ript$VariableManager]: TermVariabe t_funThread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:29:56,947 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:29:56,948 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:29:56,948 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:29:56,948 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:29:56,948 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:29:56,948 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:29:56,948 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:29:56,949 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-03-15 13:29:56,954 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-15 13:29:56,955 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mLazyFiniteAutomaton=false, 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, mMcrOptimizeForkJoin=true, mMcrOverapproximateWrwc=true [2022-03-15 13:29:56,955 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-03-15 13:29:56,958 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 125 places, 136 transitions, 284 flow [2022-03-15 13:29:57,559 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 20439 states, 20435 states have (on average 3.3995106435037927) internal successors, (69469), 20438 states have internal predecessors, (69469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:29:57,603 INFO L276 IsEmpty]: Start isEmpty. Operand has 20439 states, 20435 states have (on average 3.3995106435037927) internal successors, (69469), 20438 states have internal predecessors, (69469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:29:57,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-03-15 13:29:57,605 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:29:57,605 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:29:57,606 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-03-15 13:29:57,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:29:57,606 INFO L85 PathProgramCache]: Analyzing trace with hash -497376990, now seen corresponding path program 1 times [2022-03-15 13:29:57,607 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:29:57,607 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2076506262] [2022-03-15 13:29:57,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:29:57,607 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:29:57,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:29:57,680 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:29:57,680 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:29:57,680 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2076506262] [2022-03-15 13:29:57,681 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2076506262] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:29:57,681 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:29:57,681 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-03-15 13:29:57,681 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1775333689] [2022-03-15 13:29:57,681 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:29:57,682 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-15 13:29:57,682 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:29:57,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-15 13:29:57,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-15 13:29:57,813 INFO L87 Difference]: Start difference. First operand has 20439 states, 20435 states have (on average 3.3995106435037927) internal successors, (69469), 20438 states have internal predecessors, (69469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:29:58,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:29:58,120 INFO L93 Difference]: Finished difference Result 19667 states and 56092 transitions. [2022-03-15 13:29:58,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-15 13:29:58,121 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 44 [2022-03-15 13:29:58,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:29:58,233 INFO L225 Difference]: With dead ends: 19667 [2022-03-15 13:29:58,233 INFO L226 Difference]: Without dead ends: 16643 [2022-03-15 13:29:58,233 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-15 13:29:58,235 INFO L933 BasicCegarLoop]: 107 mSDtfsCounter, 34 mSDsluCounter, 104 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 210 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-15 13:29:58,235 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [34 Valid, 210 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-15 13:29:58,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16643 states. [2022-03-15 13:29:58,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16643 to 16643. [2022-03-15 13:29:58,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16643 states, 16640 states have (on average 2.8454326923076922) internal successors, (47348), 16642 states have internal predecessors, (47348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:29:58,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16643 states to 16643 states and 47348 transitions. [2022-03-15 13:29:58,875 INFO L78 Accepts]: Start accepts. Automaton has 16643 states and 47348 transitions. Word has length 44 [2022-03-15 13:29:58,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:29:58,876 INFO L470 AbstractCegarLoop]: Abstraction has 16643 states and 47348 transitions. [2022-03-15 13:29:58,876 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:29:58,877 INFO L276 IsEmpty]: Start isEmpty. Operand 16643 states and 47348 transitions. [2022-03-15 13:29:58,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-03-15 13:29:58,882 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:29:58,883 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:29:58,883 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-03-15 13:29:58,884 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-03-15 13:29:58,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:29:58,888 INFO L85 PathProgramCache]: Analyzing trace with hash 1229485238, now seen corresponding path program 1 times [2022-03-15 13:29:58,890 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:29:58,891 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [455012239] [2022-03-15 13:29:58,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:29:58,892 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:29:58,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:29:59,001 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:29:59,002 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:29:59,002 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [455012239] [2022-03-15 13:29:59,002 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [455012239] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-15 13:29:59,002 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1452949644] [2022-03-15 13:29:59,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:29:59,003 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 13:29:59,003 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 13:29:59,005 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-15 13:29:59,071 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-03-15 13:29:59,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:29:59,191 INFO L263 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 4 conjunts are in the unsatisfiable core [2022-03-15 13:29:59,194 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-15 13:29:59,328 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:29:59,328 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-15 13:29:59,428 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:29:59,428 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1452949644] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-15 13:29:59,428 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-15 13:29:59,429 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-03-15 13:29:59,429 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [466352183] [2022-03-15 13:29:59,429 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-15 13:29:59,430 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 13:29:59,430 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:29:59,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 13:29:59,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-03-15 13:29:59,431 INFO L87 Difference]: Start difference. First operand 16643 states and 47348 transitions. Second operand has 10 states, 10 states have (on average 7.6) internal successors, (76), 10 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:29:59,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:29:59,591 INFO L93 Difference]: Finished difference Result 8327 states and 23302 transitions. [2022-03-15 13:29:59,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 13:29:59,592 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.6) internal successors, (76), 10 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2022-03-15 13:29:59,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:29:59,619 INFO L225 Difference]: With dead ends: 8327 [2022-03-15 13:29:59,619 INFO L226 Difference]: Without dead ends: 8327 [2022-03-15 13:29:59,620 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=64, Invalid=118, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:29:59,628 INFO L933 BasicCegarLoop]: 143 mSDtfsCounter, 493 mSDsluCounter, 520 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 493 SdHoareTripleChecker+Valid, 658 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-15 13:29:59,629 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [493 Valid, 658 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-15 13:29:59,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8327 states. [2022-03-15 13:29:59,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8327 to 8327. [2022-03-15 13:29:59,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8327 states, 8326 states have (on average 2.798702858515494) internal successors, (23302), 8326 states have internal predecessors, (23302), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:29:59,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8327 states to 8327 states and 23302 transitions. [2022-03-15 13:29:59,937 INFO L78 Accepts]: Start accepts. Automaton has 8327 states and 23302 transitions. Word has length 54 [2022-03-15 13:29:59,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:29:59,939 INFO L470 AbstractCegarLoop]: Abstraction has 8327 states and 23302 transitions. [2022-03-15 13:29:59,939 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.6) internal successors, (76), 10 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:29:59,939 INFO L276 IsEmpty]: Start isEmpty. Operand 8327 states and 23302 transitions. [2022-03-15 13:29:59,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-03-15 13:29:59,941 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:29:59,941 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:29:59,973 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-03-15 13:30:00,162 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 13:30:00,163 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-03-15 13:30:00,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:30:00,163 INFO L85 PathProgramCache]: Analyzing trace with hash 1842596803, now seen corresponding path program 1 times [2022-03-15 13:30:00,163 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:30:00,164 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2080267378] [2022-03-15 13:30:00,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:30:00,164 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:30:00,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-03-15 13:30:00,187 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-03-15 13:30:00,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-03-15 13:30:00,216 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-03-15 13:30:00,216 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-03-15 13:30:00,216 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 2 remaining) [2022-03-15 13:30:00,217 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2022-03-15 13:30:00,217 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-03-15 13:30:00,217 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-03-15 13:30:00,218 WARN L235 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2022-03-15 13:30:00,218 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2022-03-15 13:30:00,235 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:30:00,235 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:30:00,235 WARN L322 ript$VariableManager]: TermVariabe t_funThread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:30:00,235 WARN L322 ript$VariableManager]: TermVariabe t_funThread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:30:00,235 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:30:00,236 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:30:00,236 WARN L322 ript$VariableManager]: TermVariabe t_funThread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:30:00,236 WARN L322 ript$VariableManager]: TermVariabe t_funThread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:30:00,236 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:30:00,236 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:30:00,236 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:30:00,236 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:30:00,236 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:30:00,237 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:30:00,237 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:30:00,237 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:30:00,237 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:30:00,238 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:30:00,238 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:30:00,238 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:30:00,238 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:30:00,238 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:30:00,238 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:30:00,239 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:30:00,239 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:30:00,239 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:30:00,239 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:30:00,239 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:30:00,239 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:30:00,239 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:30:00,239 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:30:00,240 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:30:00,240 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:30:00,240 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:30:00,240 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:30:00,240 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:30:00,240 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:30:00,240 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:30:00,240 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:30:00,241 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:30:00,241 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:30:00,241 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:30:00,241 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:30:00,241 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:30:00,241 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:30:00,241 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:30:00,241 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:30:00,241 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:30:00,242 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:30:00,243 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:30:00,243 WARN L322 ript$VariableManager]: TermVariabe t_funThread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:30:00,243 WARN L322 ript$VariableManager]: TermVariabe t_funThread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:30:00,243 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:30:00,243 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:30:00,243 WARN L322 ript$VariableManager]: TermVariabe t_funThread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:30:00,243 WARN L322 ript$VariableManager]: TermVariabe t_funThread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:30:00,243 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:30:00,243 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:30:00,244 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:30:00,244 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:30:00,244 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:30:00,244 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:30:00,244 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:30:00,244 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:30:00,244 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:30:00,244 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:30:00,245 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:30:00,245 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:30:00,245 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:30:00,245 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:30:00,245 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:30:00,245 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:30:00,245 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:30:00,245 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:30:00,245 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:30:00,246 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:30:00,246 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:30:00,246 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:30:00,246 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:30:00,246 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:30:00,246 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:30:00,246 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:30:00,246 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:30:00,246 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:30:00,247 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:30:00,247 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:30:00,247 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:30:00,247 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:30:00,247 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:30:00,247 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:30:00,247 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:30:00,247 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:30:00,248 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:30:00,248 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:30:00,248 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:30:00,248 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:30:00,248 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:30:00,249 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:30:00,249 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:30:00,249 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:30:00,249 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:30:00,249 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:30:00,249 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:30:00,249 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:30:00,249 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:30:00,249 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:30:00,250 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:30:00,250 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:30:00,250 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:30:00,250 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:30:00,250 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:30:00,250 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:30:00,251 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:30:00,251 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:30:00,251 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:30:00,251 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:30:00,251 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:30:00,251 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:30:00,251 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:30:00,251 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:30:00,252 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:30:00,252 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:30:00,252 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:30:00,252 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:30:00,252 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:30:00,252 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:30:00,252 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:30:00,252 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:30:00,252 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:30:00,253 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:30:00,253 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:30:00,253 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:30:00,253 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:30:00,253 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:30:00,253 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:30:00,253 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:30:00,253 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:30:00,253 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:30:00,254 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:30:00,254 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:30:00,254 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:30:00,254 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:30:00,254 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:30:00,254 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:30:00,255 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:30:00,255 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:30:00,255 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:30:00,255 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:30:00,255 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:30:00,255 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:30:00,255 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:30:00,256 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:30:00,256 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:30:00,256 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:30:00,256 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:30:00,256 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:30:00,256 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:30:00,256 WARN L322 ript$VariableManager]: TermVariabe t_funThread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:30:00,257 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:30:00,257 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:30:00,257 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:30:00,257 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:30:00,257 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:30:00,257 WARN L322 ript$VariableManager]: TermVariabe t_funThread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:30:00,257 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:30:00,257 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:30:00,258 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:30:00,258 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:30:00,258 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:30:00,258 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:30:00,258 WARN L322 ript$VariableManager]: TermVariabe t_funThread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:30:00,258 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:30:00,258 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:30:00,258 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:30:00,258 WARN L322 ript$VariableManager]: TermVariabe t_funThread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:30:00,258 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:30:00,259 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:30:00,259 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-03-15 13:30:00,260 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-15 13:30:00,260 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mLazyFiniteAutomaton=false, 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, mMcrOptimizeForkJoin=true, mMcrOverapproximateWrwc=true [2022-03-15 13:30:00,261 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-03-15 13:30:00,262 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 154 places, 169 transitions, 359 flow [2022-03-15 13:30:17,675 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 551151 states, 551146 states have (on average 4.587016870302969) internal successors, (2528116), 551150 states have internal predecessors, (2528116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:30:18,754 INFO L276 IsEmpty]: Start isEmpty. Operand has 551151 states, 551146 states have (on average 4.587016870302969) internal successors, (2528116), 551150 states have internal predecessors, (2528116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:30:18,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-03-15 13:30:18,755 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:30:18,755 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:30:18,756 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-03-15 13:30:18,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:30:18,756 INFO L85 PathProgramCache]: Analyzing trace with hash 1740326689, now seen corresponding path program 1 times [2022-03-15 13:30:18,756 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:30:18,756 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [497147018] [2022-03-15 13:30:18,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:30:18,757 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:30:18,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:30:18,791 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:30:18,792 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:30:18,792 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [497147018] [2022-03-15 13:30:18,792 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [497147018] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:30:18,792 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:30:18,792 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-03-15 13:30:18,792 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [66013765] [2022-03-15 13:30:18,792 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:30:18,793 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-03-15 13:30:18,793 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:30:18,793 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-03-15 13:30:18,793 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-03-15 13:30:19,848 INFO L87 Difference]: Start difference. First operand has 551151 states, 551146 states have (on average 4.587016870302969) internal successors, (2528116), 551150 states have internal predecessors, (2528116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 22.0) internal successors, (44), 2 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:30:31,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:30:31,371 INFO L93 Difference]: Finished difference Result 530711 states and 2025190 transitions. [2022-03-15 13:30:31,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-15 13:30:31,371 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 22.0) internal successors, (44), 2 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 44 [2022-03-15 13:30:31,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:30:37,677 INFO L225 Difference]: With dead ends: 530711 [2022-03-15 13:30:37,677 INFO L226 Difference]: Without dead ends: 448951 [2022-03-15 13:30:37,677 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-03-15 13:30:37,678 INFO L933 BasicCegarLoop]: 136 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 136 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-15 13:30:37,678 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 136 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-15 13:30:39,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 448951 states. [2022-03-15 13:31:05,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 448951 to 448951. [2022-03-15 13:31:08,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 448951 states, 448946 states have (on average 3.8095049293233485) internal successors, (1710262), 448950 states have internal predecessors, (1710262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:31:15,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 448951 states to 448951 states and 1710262 transitions. [2022-03-15 13:31:15,937 INFO L78 Accepts]: Start accepts. Automaton has 448951 states and 1710262 transitions. Word has length 44 [2022-03-15 13:31:15,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:31:15,967 INFO L470 AbstractCegarLoop]: Abstraction has 448951 states and 1710262 transitions. [2022-03-15 13:31:15,968 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 22.0) internal successors, (44), 2 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:31:15,968 INFO L276 IsEmpty]: Start isEmpty. Operand 448951 states and 1710262 transitions. [2022-03-15 13:31:15,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-03-15 13:31:15,968 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:31:15,969 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:31:15,969 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-03-15 13:31:15,969 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-03-15 13:31:15,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:31:15,970 INFO L85 PathProgramCache]: Analyzing trace with hash -56624670, now seen corresponding path program 1 times [2022-03-15 13:31:15,970 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:31:15,970 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [617067074] [2022-03-15 13:31:15,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:31:15,970 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:31:16,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:31:16,090 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:31:16,091 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:31:16,091 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [617067074] [2022-03-15 13:31:16,091 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [617067074] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:31:16,091 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:31:16,091 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-03-15 13:31:16,091 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1662559682] [2022-03-15 13:31:16,091 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:31:16,092 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-15 13:31:16,092 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:31:16,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-15 13:31:16,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-15 13:31:16,094 INFO L87 Difference]: Start difference. First operand 448951 states and 1710262 transitions. Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 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)