/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-MCRwithoutDepranks.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-nondet/nondet-array-1.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-44898dd [2022-02-16 16:59:52,875 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-16 16:59:52,877 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-16 16:59:52,924 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-02-16 16:59:52,981 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-16 16:59:52,981 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-16 16:59:52,982 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-16 16:59:52,983 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-MCRwithoutDepranks.epf [2022-02-16 16:59:53,008 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-16 16:59:53,008 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-16 16:59:53,009 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-16 16:59:53,009 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-16 16:59:53,009 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-16 16:59:53,010 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-16 16:59:53,010 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-16 16:59:53,010 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-16 16:59:53,011 INFO L138 SettingsManager]: * Use SBE=true [2022-02-16 16:59:53,011 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-16 16:59:53,011 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-16 16:59:53,011 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-16 16:59:53,011 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-16 16:59:53,011 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-16 16:59:53,012 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-16 16:59:53,012 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-16 16:59:53,012 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-16 16:59:53,012 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-16 16:59:53,012 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-16 16:59:53,012 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-16 16:59:53,012 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-16 16:59:53,012 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-16 16:59:53,012 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-16 16:59:53,012 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-02-16 16:59:53,013 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-16 16:59:53,013 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-16 16:59:53,013 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-16 16:59:53,013 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-16 16:59:53,014 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-16 16:59:53,014 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-16 16:59:53,014 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-02-16 16:59:53,014 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-02-16 16:59:53,014 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-02-16 16:59:53,014 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-16 16:59:53,014 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=MCR_WITHOUT_DEPRANKS [2022-02-16 16:59:53,014 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-02-16 16:59:53,194 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-16 16:59:53,218 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-16 16:59:53,220 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-16 16:59:53,221 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-16 16:59:53,229 INFO L275 PluginConnector]: CDTParser initialized [2022-02-16 16:59:53,230 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-nondet/nondet-array-1.i [2022-02-16 16:59:53,277 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/61e285b48/8c84ec772dd24fe5a621c6d818e9dc62/FLAGbbea5e5db [2022-02-16 16:59:53,744 INFO L306 CDTParser]: Found 1 translation units. [2022-02-16 16:59:53,744 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-nondet/nondet-array-1.i [2022-02-16 16:59:53,757 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/61e285b48/8c84ec772dd24fe5a621c6d818e9dc62/FLAGbbea5e5db [2022-02-16 16:59:53,771 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/61e285b48/8c84ec772dd24fe5a621c6d818e9dc62 [2022-02-16 16:59:53,773 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-16 16:59:53,775 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-02-16 16:59:53,778 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-16 16:59:53,778 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-16 16:59:53,781 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-16 16:59:53,781 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.02 04:59:53" (1/1) ... [2022-02-16 16:59:53,782 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2aa724fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 04:59:53, skipping insertion in model container [2022-02-16 16:59:53,782 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.02 04:59:53" (1/1) ... [2022-02-16 16:59:53,787 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-16 16:59:53,825 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-16 16:59:54,111 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-nondet/nondet-array-1.i[30035,30048] [2022-02-16 16:59:54,127 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-16 16:59:54,136 INFO L203 MainTranslator]: Completed pre-run [2022-02-16 16:59:54,175 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-nondet/nondet-array-1.i[30035,30048] [2022-02-16 16:59:54,179 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-16 16:59:54,212 INFO L208 MainTranslator]: Completed translation [2022-02-16 16:59:54,212 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 04:59:54 WrapperNode [2022-02-16 16:59:54,212 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-16 16:59:54,213 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-16 16:59:54,213 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-16 16:59:54,213 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-16 16:59:54,217 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 04:59:54" (1/1) ... [2022-02-16 16:59:54,230 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 04:59:54" (1/1) ... [2022-02-16 16:59:54,245 INFO L137 Inliner]: procedures = 170, calls = 18, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 73 [2022-02-16 16:59:54,245 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-16 16:59:54,246 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-16 16:59:54,246 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-16 16:59:54,246 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-16 16:59:54,251 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 04:59:54" (1/1) ... [2022-02-16 16:59:54,251 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 04:59:54" (1/1) ... [2022-02-16 16:59:54,254 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 04:59:54" (1/1) ... [2022-02-16 16:59:54,254 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 04:59:54" (1/1) ... [2022-02-16 16:59:54,258 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 04:59:54" (1/1) ... [2022-02-16 16:59:54,260 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 04:59:54" (1/1) ... [2022-02-16 16:59:54,261 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 04:59:54" (1/1) ... [2022-02-16 16:59:54,263 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-16 16:59:54,263 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-16 16:59:54,264 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-16 16:59:54,264 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-16 16:59:54,264 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 04:59:54" (1/1) ... [2022-02-16 16:59:54,270 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-16 16:59:54,279 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-16 16:59:54,289 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) [2022-02-16 16:59:54,296 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 [2022-02-16 16:59:54,333 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-02-16 16:59:54,333 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-02-16 16:59:54,333 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-02-16 16:59:54,333 INFO L130 BoogieDeclarations]: Found specification of procedure thr [2022-02-16 16:59:54,333 INFO L138 BoogieDeclarations]: Found implementation of procedure thr [2022-02-16 16:59:54,333 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-16 16:59:54,333 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-02-16 16:59:54,333 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-02-16 16:59:54,333 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-16 16:59:54,333 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-16 16:59:54,334 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-16 16:59:54,334 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-02-16 16:59:54,413 INFO L234 CfgBuilder]: Building ICFG [2022-02-16 16:59:54,415 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-16 16:59:54,529 INFO L275 CfgBuilder]: Performing block encoding [2022-02-16 16:59:54,533 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-16 16:59:54,534 INFO L299 CfgBuilder]: Removed 3 assume(true) statements. [2022-02-16 16:59:54,535 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.02 04:59:54 BoogieIcfgContainer [2022-02-16 16:59:54,535 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-16 16:59:54,536 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-16 16:59:54,536 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-16 16:59:54,538 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-16 16:59:54,539 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.02 04:59:53" (1/3) ... [2022-02-16 16:59:54,539 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@671514d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.02 04:59:54, skipping insertion in model container [2022-02-16 16:59:54,539 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 04:59:54" (2/3) ... [2022-02-16 16:59:54,539 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@671514d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.02 04:59:54, skipping insertion in model container [2022-02-16 16:59:54,539 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.02 04:59:54" (3/3) ... [2022-02-16 16:59:54,540 INFO L111 eAbstractionObserver]: Analyzing ICFG nondet-array-1.i [2022-02-16 16:59:54,543 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-02-16 16:59:54,544 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-16 16:59:54,544 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-16 16:59:54,544 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-02-16 16:59:54,567 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 16:59:54,567 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 16:59:54,567 WARN L322 ript$VariableManager]: TermVariabe thrThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 16:59:54,567 WARN L322 ript$VariableManager]: TermVariabe thrThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 16:59:54,568 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 16:59:54,568 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 16:59:54,568 WARN L322 ript$VariableManager]: TermVariabe thrThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 16:59:54,568 WARN L322 ript$VariableManager]: TermVariabe thrThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 16:59:54,568 WARN L322 ript$VariableManager]: TermVariabe thrThread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 16:59:54,568 WARN L322 ript$VariableManager]: TermVariabe thrThread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 16:59:54,569 WARN L322 ript$VariableManager]: TermVariabe thrThread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 16:59:54,569 WARN L322 ript$VariableManager]: TermVariabe thrThread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 16:59:54,569 WARN L322 ript$VariableManager]: TermVariabe thrThread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 16:59:54,570 WARN L322 ript$VariableManager]: TermVariabe thrThread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 16:59:54,572 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 16:59:54,572 WARN L322 ript$VariableManager]: TermVariabe thrThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 16:59:54,572 WARN L322 ript$VariableManager]: TermVariabe thrThread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 16:59:54,572 WARN L322 ript$VariableManager]: TermVariabe thrThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 16:59:54,572 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 16:59:54,575 INFO L148 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-02-16 16:59:54,621 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-02-16 16:59:54,622 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-16 16:59:54,623 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-02-16 16:59:54,624 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2022-02-16 16:59:54,644 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-16 16:59:54,649 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, 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 [2022-02-16 16:59:54,649 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-02-16 16:59:54,657 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 84 places, 88 transitions, 184 flow [2022-02-16 16:59:54,697 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 301 states, 296 states have (on average 1.7939189189189189) internal successors, (531), 300 states have internal predecessors, (531), 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) [2022-02-16 16:59:54,719 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 51 transitions and produced 52 states. [2022-02-16 16:59:54,721 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-02-16 16:59:54,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-16 16:59:54,726 INFO L85 PathProgramCache]: Analyzing trace with hash 1315429371, now seen corresponding path program 1 times [2022-02-16 16:59:54,734 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-16 16:59:54,735 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [404859274] [2022-02-16 16:59:54,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-16 16:59:54,735 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-16 16:59:54,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-16 16:59:54,927 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-16 16:59:54,928 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-16 16:59:54,928 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [404859274] [2022-02-16 16:59:54,929 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [404859274] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-16 16:59:54,929 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-16 16:59:54,929 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-02-16 16:59:54,930 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [747383419] [2022-02-16 16:59:54,930 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-16 16:59:54,932 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-02-16 16:59:54,932 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-16 16:59:54,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-02-16 16:59:54,950 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-02-16 16:59:54,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-16 16:59:54,952 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-16 16:59:54,952 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) [2022-02-16 16:59:54,952 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-16 16:59:54,974 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 51 transitions and produced 52 states. [2022-02-16 16:59:54,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-16 16:59:54,974 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-02-16 16:59:54,974 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-02-16 16:59:54,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-16 16:59:54,977 INFO L85 PathProgramCache]: Analyzing trace with hash -53406567, now seen corresponding path program 1 times [2022-02-16 16:59:54,977 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-16 16:59:54,977 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1714973410] [2022-02-16 16:59:54,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-16 16:59:54,977 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-16 16:59:55,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-16 16:59:55,167 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-16 16:59:55,167 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-16 16:59:55,167 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1714973410] [2022-02-16 16:59:55,168 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1714973410] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-16 16:59:55,168 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-16 16:59:55,168 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-02-16 16:59:55,168 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [903055004] [2022-02-16 16:59:55,168 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-16 16:59:55,170 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-16 16:59:55,170 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-16 16:59:55,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-16 16:59:55,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-02-16 16:59:55,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-16 16:59:55,171 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-16 16:59:55,171 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 6 states have internal predecessors, (43), 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) [2022-02-16 16:59:55,171 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-16 16:59:55,171 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-16 16:59:55,325 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 95 transitions and produced 96 states. [2022-02-16 16:59:55,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-16 16:59:55,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-16 16:59:55,333 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-02-16 16:59:55,333 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-02-16 16:59:55,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-16 16:59:55,334 INFO L85 PathProgramCache]: Analyzing trace with hash -372573307, now seen corresponding path program 1 times [2022-02-16 16:59:55,335 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-16 16:59:55,335 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [809029539] [2022-02-16 16:59:55,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-16 16:59:55,335 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-16 16:59:55,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-16 16:59:55,532 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-16 16:59:55,532 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-16 16:59:55,532 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [809029539] [2022-02-16 16:59:55,532 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [809029539] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-16 16:59:55,532 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2023845127] [2022-02-16 16:59:55,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-16 16:59:55,533 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-16 16:59:55,533 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-16 16:59:55,534 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-16 16:59:55,584 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-02-16 16:59:55,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-16 16:59:55,639 INFO L263 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 9 conjunts are in the unsatisfiable core [2022-02-16 16:59:55,645 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-16 16:59:56,010 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-16 16:59:56,010 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-16 16:59:56,193 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-16 16:59:56,194 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2023845127] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-16 16:59:56,194 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-16 16:59:56,194 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 20 [2022-02-16 16:59:56,195 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [775421360] [2022-02-16 16:59:56,195 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-16 16:59:56,196 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-02-16 16:59:56,197 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-16 16:59:56,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-02-16 16:59:56,202 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=104, Invalid=276, Unknown=0, NotChecked=0, Total=380 [2022-02-16 16:59:56,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-16 16:59:56,202 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-16 16:59:56,203 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 5.3) internal successors, (106), 20 states have internal predecessors, (106), 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) [2022-02-16 16:59:56,203 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-16 16:59:56,203 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-02-16 16:59:56,203 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-16 16:59:56,444 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 62 transitions and produced 63 states. [2022-02-16 16:59:56,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-16 16:59:56,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-16 16:59:56,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-16 16:59:56,479 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-02-16 16:59:56,679 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2022-02-16 16:59:56,680 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-02-16 16:59:56,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-16 16:59:56,681 INFO L85 PathProgramCache]: Analyzing trace with hash -658806082, now seen corresponding path program 1 times [2022-02-16 16:59:56,681 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-16 16:59:56,682 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [584800454] [2022-02-16 16:59:56,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-16 16:59:56,682 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-16 16:59:56,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-16 16:59:56,716 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-16 16:59:56,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-16 16:59:56,751 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-16 16:59:56,751 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-02-16 16:59:56,752 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 2 remaining) [2022-02-16 16:59:56,753 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2022-02-16 16:59:56,753 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-02-16 16:59:56,757 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-02-16 16:59:56,758 WARN L235 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2022-02-16 16:59:56,758 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2022-02-16 16:59:56,773 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 16:59:56,773 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 16:59:56,773 WARN L322 ript$VariableManager]: TermVariabe thrThread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 16:59:56,774 WARN L322 ript$VariableManager]: TermVariabe thrThread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 16:59:56,774 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 16:59:56,774 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 16:59:56,774 WARN L322 ript$VariableManager]: TermVariabe thrThread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 16:59:56,776 WARN L322 ript$VariableManager]: TermVariabe thrThread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 16:59:56,776 WARN L322 ript$VariableManager]: TermVariabe thrThread2of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 16:59:56,776 WARN L322 ript$VariableManager]: TermVariabe thrThread2of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 16:59:56,776 WARN L322 ript$VariableManager]: TermVariabe thrThread2of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 16:59:56,776 WARN L322 ript$VariableManager]: TermVariabe thrThread2of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 16:59:56,777 WARN L322 ript$VariableManager]: TermVariabe thrThread2of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 16:59:56,777 WARN L322 ript$VariableManager]: TermVariabe thrThread2of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 16:59:56,777 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 16:59:56,777 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 16:59:56,777 WARN L322 ript$VariableManager]: TermVariabe thrThread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 16:59:56,777 WARN L322 ript$VariableManager]: TermVariabe thrThread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 16:59:56,777 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 16:59:56,778 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 16:59:56,778 WARN L322 ript$VariableManager]: TermVariabe thrThread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 16:59:56,778 WARN L322 ript$VariableManager]: TermVariabe thrThread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 16:59:56,778 WARN L322 ript$VariableManager]: TermVariabe thrThread1of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 16:59:56,778 WARN L322 ript$VariableManager]: TermVariabe thrThread1of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 16:59:56,778 WARN L322 ript$VariableManager]: TermVariabe thrThread1of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 16:59:56,778 WARN L322 ript$VariableManager]: TermVariabe thrThread1of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 16:59:56,778 WARN L322 ript$VariableManager]: TermVariabe thrThread1of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 16:59:56,779 WARN L322 ript$VariableManager]: TermVariabe thrThread1of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 16:59:56,779 WARN L322 ript$VariableManager]: TermVariabe thrThread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 16:59:56,779 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 16:59:56,779 WARN L322 ript$VariableManager]: TermVariabe thrThread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 16:59:56,779 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 16:59:56,779 WARN L322 ript$VariableManager]: TermVariabe thrThread1of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 16:59:56,780 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 16:59:56,780 WARN L322 ript$VariableManager]: TermVariabe thrThread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 16:59:56,781 WARN L322 ript$VariableManager]: TermVariabe thrThread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 16:59:56,781 WARN L322 ript$VariableManager]: TermVariabe thrThread2of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 16:59:56,781 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 16:59:56,782 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-02-16 16:59:56,785 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-02-16 16:59:56,785 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-16 16:59:56,793 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-02-16 16:59:56,794 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (4)] Waiting until timeout for monitored process [2022-02-16 16:59:56,836 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-16 16:59:56,837 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, 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 [2022-02-16 16:59:56,837 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-02-16 16:59:56,838 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 92 places, 95 transitions, 208 flow [2022-02-16 16:59:56,918 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 1951 states, 1942 states have (on average 2.542224510813594) internal successors, (4937), 1950 states have internal predecessors, (4937), 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) [2022-02-16 16:59:56,938 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 51 transitions and produced 52 states. [2022-02-16 16:59:56,939 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-02-16 16:59:56,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-16 16:59:56,939 INFO L85 PathProgramCache]: Analyzing trace with hash -1206937285, now seen corresponding path program 1 times [2022-02-16 16:59:56,939 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-16 16:59:56,939 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1228775157] [2022-02-16 16:59:56,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-16 16:59:56,940 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-16 16:59:56,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-16 16:59:56,957 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-16 16:59:56,957 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-16 16:59:56,957 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1228775157] [2022-02-16 16:59:56,957 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1228775157] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-16 16:59:56,957 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-16 16:59:56,957 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-02-16 16:59:56,958 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [527944770] [2022-02-16 16:59:56,958 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-16 16:59:56,958 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-02-16 16:59:56,958 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-16 16:59:56,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-02-16 16:59:56,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-02-16 16:59:56,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-16 16:59:56,959 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-16 16:59:56,959 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) [2022-02-16 16:59:56,959 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-16 16:59:56,963 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 51 transitions and produced 52 states. [2022-02-16 16:59:56,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-16 16:59:56,963 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-02-16 16:59:56,963 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-02-16 16:59:56,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-16 16:59:56,964 INFO L85 PathProgramCache]: Analyzing trace with hash 280868760, now seen corresponding path program 1 times [2022-02-16 16:59:56,964 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-16 16:59:56,964 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1659552642] [2022-02-16 16:59:56,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-16 16:59:56,964 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-16 16:59:56,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-16 16:59:57,008 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-16 16:59:57,009 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-16 16:59:57,009 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1659552642] [2022-02-16 16:59:57,009 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1659552642] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-16 16:59:57,009 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-16 16:59:57,009 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-02-16 16:59:57,009 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [303987323] [2022-02-16 16:59:57,009 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-16 16:59:57,010 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-16 16:59:57,010 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-16 16:59:57,010 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-16 16:59:57,010 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-02-16 16:59:57,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-16 16:59:57,010 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-16 16:59:57,010 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 6 states have internal predecessors, (43), 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) [2022-02-16 16:59:57,010 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-16 16:59:57,011 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-16 16:59:57,071 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 95 transitions and produced 96 states. [2022-02-16 16:59:57,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-16 16:59:57,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-16 16:59:57,071 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-02-16 16:59:57,073 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-02-16 16:59:57,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-16 16:59:57,074 INFO L85 PathProgramCache]: Analyzing trace with hash 88741193, now seen corresponding path program 1 times [2022-02-16 16:59:57,074 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-16 16:59:57,076 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1438236932] [2022-02-16 16:59:57,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-16 16:59:57,077 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-16 16:59:57,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-16 16:59:57,165 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-16 16:59:57,166 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-16 16:59:57,166 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1438236932] [2022-02-16 16:59:57,166 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1438236932] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-16 16:59:57,166 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [799702206] [2022-02-16 16:59:57,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-16 16:59:57,166 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-16 16:59:57,166 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-16 16:59:57,171 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-16 16:59:57,192 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-02-16 16:59:57,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-16 16:59:57,265 INFO L263 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 9 conjunts are in the unsatisfiable core [2022-02-16 16:59:57,268 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-16 16:59:57,469 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-16 16:59:57,469 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-16 16:59:57,587 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-16 16:59:57,588 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [799702206] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-16 16:59:57,588 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-16 16:59:57,588 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 20 [2022-02-16 16:59:57,588 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [244995792] [2022-02-16 16:59:57,588 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-16 16:59:57,588 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-02-16 16:59:57,588 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-16 16:59:57,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-02-16 16:59:57,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=104, Invalid=276, Unknown=0, NotChecked=0, Total=380 [2022-02-16 16:59:57,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-16 16:59:57,590 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-16 16:59:57,590 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 5.3) internal successors, (106), 20 states have internal predecessors, (106), 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) [2022-02-16 16:59:57,590 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-16 16:59:57,590 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-02-16 16:59:57,590 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-16 16:59:57,966 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 94 transitions and produced 95 states. [2022-02-16 16:59:57,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-16 16:59:57,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-16 16:59:57,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-02-16 16:59:57,988 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-02-16 16:59:58,179 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-16 16:59:58,180 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-02-16 16:59:58,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-16 16:59:58,180 INFO L85 PathProgramCache]: Analyzing trace with hash 618023769, now seen corresponding path program 1 times [2022-02-16 16:59:58,180 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-16 16:59:58,180 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [521846437] [2022-02-16 16:59:58,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-16 16:59:58,181 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-16 16:59:58,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-16 16:59:58,209 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-16 16:59:58,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-16 16:59:58,232 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-16 16:59:58,232 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-02-16 16:59:58,232 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 2 remaining) [2022-02-16 16:59:58,232 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2022-02-16 16:59:58,232 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-02-16 16:59:58,233 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-02-16 16:59:58,233 WARN L235 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2022-02-16 16:59:58,233 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2022-02-16 16:59:58,238 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 16:59:58,238 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 16:59:58,238 WARN L322 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 16:59:58,238 WARN L322 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 16:59:58,238 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 16:59:58,238 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 16:59:58,238 WARN L322 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 16:59:58,238 WARN L322 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 16:59:58,239 WARN L322 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 16:59:58,239 WARN L322 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 16:59:58,239 WARN L322 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 16:59:58,239 WARN L322 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 16:59:58,239 WARN L322 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 16:59:58,239 WARN L322 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 16:59:58,239 WARN L322 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 16:59:58,239 WARN L322 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 16:59:58,239 WARN L322 ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 16:59:58,239 WARN L322 ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 16:59:58,240 WARN L322 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 16:59:58,240 WARN L322 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 16:59:58,240 WARN L322 ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 16:59:58,240 WARN L322 ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 16:59:58,240 WARN L322 ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 16:59:58,240 WARN L322 ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 16:59:58,240 WARN L322 ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 16:59:58,240 WARN L322 ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 16:59:58,240 WARN L322 ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 16:59:58,240 WARN L322 ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 16:59:58,241 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 16:59:58,241 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 16:59:58,241 WARN L322 ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 16:59:58,241 WARN L322 ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 16:59:58,241 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 16:59:58,241 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 16:59:58,241 WARN L322 ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 16:59:58,241 WARN L322 ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 16:59:58,241 WARN L322 ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 16:59:58,241 WARN L322 ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 16:59:58,241 WARN L322 ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 16:59:58,241 WARN L322 ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 16:59:58,242 WARN L322 ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 16:59:58,242 WARN L322 ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 16:59:58,242 WARN L322 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 16:59:58,242 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 16:59:58,242 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 16:59:58,242 WARN L322 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 16:59:58,242 WARN L322 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 16:59:58,242 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 16:59:58,243 WARN L322 ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 16:59:58,243 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 16:59:58,243 WARN L322 ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 16:59:58,243 WARN L322 ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 16:59:58,243 WARN L322 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 16:59:58,243 WARN L322 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 16:59:58,243 WARN L322 ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 16:59:58,243 WARN L322 ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 16:59:58,243 WARN L322 ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 16:59:58,244 INFO L148 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-02-16 16:59:58,245 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-02-16 16:59:58,245 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-16 16:59:58,246 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-02-16 16:59:58,247 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (6)] Waiting until timeout for monitored process [2022-02-16 16:59:58,249 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-16 16:59:58,250 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, 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 [2022-02-16 16:59:58,250 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-02-16 16:59:58,251 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 100 places, 102 transitions, 234 flow [2022-02-16 16:59:58,590 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 13195 states, 13178 states have (on average 3.280315677644559) internal successors, (43228), 13194 states have internal predecessors, (43228), 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) [2022-02-16 16:59:58,593 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 51 transitions and produced 52 states. [2022-02-16 16:59:58,593 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-02-16 16:59:58,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-16 16:59:58,594 INFO L85 PathProgramCache]: Analyzing trace with hash 1600479675, now seen corresponding path program 1 times [2022-02-16 16:59:58,594 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-16 16:59:58,594 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1792912016] [2022-02-16 16:59:58,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-16 16:59:58,594 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-16 16:59:58,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-16 16:59:58,614 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-16 16:59:58,614 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-16 16:59:58,614 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1792912016] [2022-02-16 16:59:58,615 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1792912016] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-16 16:59:58,615 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-16 16:59:58,615 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-02-16 16:59:58,615 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [338878387] [2022-02-16 16:59:58,615 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-16 16:59:58,615 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-02-16 16:59:58,615 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-16 16:59:58,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-02-16 16:59:58,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-02-16 16:59:58,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-16 16:59:58,616 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-16 16:59:58,616 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) [2022-02-16 16:59:58,616 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-16 16:59:58,619 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 51 transitions and produced 52 states. [2022-02-16 16:59:58,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-16 16:59:58,620 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-02-16 16:59:58,620 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-02-16 16:59:58,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-16 16:59:58,620 INFO L85 PathProgramCache]: Analyzing trace with hash 232883262, now seen corresponding path program 1 times [2022-02-16 16:59:58,620 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-16 16:59:58,620 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1748556948] [2022-02-16 16:59:58,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-16 16:59:58,621 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-16 16:59:58,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-16 16:59:58,666 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-16 16:59:58,666 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-16 16:59:58,666 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1748556948] [2022-02-16 16:59:58,666 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1748556948] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-16 16:59:58,666 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-16 16:59:58,667 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-02-16 16:59:58,667 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1511991967] [2022-02-16 16:59:58,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-16 16:59:58,667 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-16 16:59:58,667 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-16 16:59:58,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-16 16:59:58,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-02-16 16:59:58,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-16 16:59:58,668 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-16 16:59:58,668 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 6 states have internal predecessors, (43), 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) [2022-02-16 16:59:58,668 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-16 16:59:58,668 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-16 16:59:58,722 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 95 transitions and produced 96 states. [2022-02-16 16:59:58,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-16 16:59:58,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-16 16:59:58,723 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-02-16 16:59:58,723 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-02-16 16:59:58,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-16 16:59:58,723 INFO L85 PathProgramCache]: Analyzing trace with hash -1320549245, now seen corresponding path program 1 times [2022-02-16 16:59:58,724 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-16 16:59:58,724 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [773180086] [2022-02-16 16:59:58,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-16 16:59:58,724 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-16 16:59:58,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-16 16:59:58,810 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-16 16:59:58,810 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-16 16:59:58,810 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [773180086] [2022-02-16 16:59:58,811 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [773180086] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-16 16:59:58,811 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1617294123] [2022-02-16 16:59:58,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-16 16:59:58,811 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-16 16:59:58,811 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-16 16:59:58,812 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-16 16:59:58,833 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-02-16 16:59:58,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-16 16:59:58,924 INFO L263 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 9 conjunts are in the unsatisfiable core [2022-02-16 16:59:58,928 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-16 16:59:59,136 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-16 16:59:59,137 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-16 16:59:59,256 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-16 16:59:59,256 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1617294123] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-16 16:59:59,256 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-16 16:59:59,256 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 20 [2022-02-16 16:59:59,257 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [456354049] [2022-02-16 16:59:59,257 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-16 16:59:59,257 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-02-16 16:59:59,257 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-16 16:59:59,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-02-16 16:59:59,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=104, Invalid=276, Unknown=0, NotChecked=0, Total=380 [2022-02-16 16:59:59,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-16 16:59:59,258 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-16 16:59:59,261 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 5.3) internal successors, (106), 20 states have internal predecessors, (106), 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) [2022-02-16 16:59:59,261 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-16 16:59:59,261 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-02-16 16:59:59,262 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-16 17:00:00,992 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 211 transitions and produced 212 states. [2022-02-16 17:00:00,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-16 17:00:00,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-16 17:00:00,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-02-16 17:00:01,013 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-02-16 17:00:01,208 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-16 17:00:01,208 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-02-16 17:00:01,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-16 17:00:01,209 INFO L85 PathProgramCache]: Analyzing trace with hash -1630915403, now seen corresponding path program 1 times [2022-02-16 17:00:01,209 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-16 17:00:01,209 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [479072854] [2022-02-16 17:00:01,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-16 17:00:01,209 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-16 17:00:01,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-16 17:00:01,309 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 2 proven. 32 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-02-16 17:00:01,309 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-16 17:00:01,310 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [479072854] [2022-02-16 17:00:01,310 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [479072854] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-16 17:00:01,310 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1104367458] [2022-02-16 17:00:01,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-16 17:00:01,310 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-16 17:00:01,310 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-16 17:00:01,335 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-16 17:00:01,336 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-02-16 17:00:01,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-16 17:00:01,409 INFO L263 TraceCheckSpWp]: Trace formula consists of 225 conjuncts, 10 conjunts are in the unsatisfiable core [2022-02-16 17:00:01,411 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-16 17:00:01,666 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 12 proven. 22 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-02-16 17:00:01,666 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-16 17:00:01,859 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 12 proven. 22 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-02-16 17:00:01,860 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1104367458] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-16 17:00:01,860 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-16 17:00:01,860 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 21 [2022-02-16 17:00:01,860 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [986279743] [2022-02-16 17:00:01,860 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-16 17:00:01,861 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-02-16 17:00:01,861 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-16 17:00:01,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-02-16 17:00:01,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=341, Unknown=0, NotChecked=0, Total=420 [2022-02-16 17:00:01,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-16 17:00:01,861 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-16 17:00:01,862 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 8.714285714285714) internal successors, (183), 21 states have internal predecessors, (183), 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) [2022-02-16 17:00:01,862 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-16 17:00:01,862 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-02-16 17:00:01,862 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2022-02-16 17:00:01,862 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-16 17:00:03,114 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 227 transitions and produced 228 states. [2022-02-16 17:00:03,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-16 17:00:03,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-16 17:00:03,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-02-16 17:00:03,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-02-16 17:00:03,133 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-02-16 17:00:03,330 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-16 17:00:03,330 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-02-16 17:00:03,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-16 17:00:03,331 INFO L85 PathProgramCache]: Analyzing trace with hash 1905332, now seen corresponding path program 1 times [2022-02-16 17:00:03,331 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-16 17:00:03,331 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1444395873] [2022-02-16 17:00:03,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-16 17:00:03,331 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-16 17:00:03,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-16 17:00:03,451 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 2 proven. 32 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-02-16 17:00:03,452 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-16 17:00:03,452 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1444395873] [2022-02-16 17:00:03,452 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1444395873] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-16 17:00:03,452 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [220883496] [2022-02-16 17:00:03,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-16 17:00:03,452 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-16 17:00:03,452 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-16 17:00:03,453 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-16 17:00:03,462 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-02-16 17:00:03,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-16 17:00:03,549 INFO L263 TraceCheckSpWp]: Trace formula consists of 247 conjuncts, 10 conjunts are in the unsatisfiable core [2022-02-16 17:00:03,551 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-16 17:00:03,808 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 12 proven. 22 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-02-16 17:00:03,808 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-16 17:00:04,017 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 12 proven. 22 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-02-16 17:00:04,017 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [220883496] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-16 17:00:04,017 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-16 17:00:04,017 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 21 [2022-02-16 17:00:04,017 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [930482538] [2022-02-16 17:00:04,017 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-16 17:00:04,018 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-02-16 17:00:04,018 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-16 17:00:04,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-02-16 17:00:04,019 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=341, Unknown=0, NotChecked=0, Total=420 [2022-02-16 17:00:04,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-16 17:00:04,019 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-16 17:00:04,025 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 8.666666666666666) internal successors, (182), 21 states have internal predecessors, (182), 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) [2022-02-16 17:00:04,025 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-16 17:00:04,025 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-02-16 17:00:04,025 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2022-02-16 17:00:04,025 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2022-02-16 17:00:04,025 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-16 17:00:05,035 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 245 transitions and produced 244 states. [2022-02-16 17:00:05,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-16 17:00:05,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-16 17:00:05,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-02-16 17:00:05,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-02-16 17:00:05,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-02-16 17:00:05,054 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-02-16 17:00:05,254 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-02-16 17:00:05,254 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-02-16 17:00:05,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-16 17:00:05,255 INFO L85 PathProgramCache]: Analyzing trace with hash -280027948, now seen corresponding path program 2 times [2022-02-16 17:00:05,255 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-16 17:00:05,255 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1806495428] [2022-02-16 17:00:05,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-16 17:00:05,255 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-16 17:00:05,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-16 17:00:05,399 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-02-16 17:00:05,399 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-16 17:00:05,400 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1806495428] [2022-02-16 17:00:05,400 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1806495428] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-16 17:00:05,400 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [755567374] [2022-02-16 17:00:05,400 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-02-16 17:00:05,400 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-16 17:00:05,400 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-16 17:00:05,412 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-16 17:00:05,414 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-02-16 17:00:05,494 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-02-16 17:00:05,494 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-16 17:00:05,496 INFO L263 TraceCheckSpWp]: Trace formula consists of 269 conjuncts, 13 conjunts are in the unsatisfiable core [2022-02-16 17:00:05,497 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-16 17:00:05,929 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-02-16 17:00:05,930 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-16 17:00:06,170 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-02-16 17:00:06,171 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [755567374] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-16 17:00:06,171 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-16 17:00:06,171 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 27 [2022-02-16 17:00:06,171 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [74122293] [2022-02-16 17:00:06,171 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-16 17:00:06,172 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2022-02-16 17:00:06,172 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-16 17:00:06,172 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2022-02-16 17:00:06,173 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=177, Invalid=525, Unknown=0, NotChecked=0, Total=702 [2022-02-16 17:00:06,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-16 17:00:06,173 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-16 17:00:06,174 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 5.925925925925926) internal successors, (160), 27 states have internal predecessors, (160), 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) [2022-02-16 17:00:06,174 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-16 17:00:06,174 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-02-16 17:00:06,174 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2022-02-16 17:00:06,174 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2022-02-16 17:00:06,174 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2022-02-16 17:00:06,174 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-16 17:00:06,666 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 136 transitions and produced 137 states. [2022-02-16 17:00:06,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-16 17:00:06,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-16 17:00:06,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-02-16 17:00:06,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-02-16 17:00:06,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-02-16 17:00:06,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-02-16 17:00:06,684 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-02-16 17:00:06,883 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-02-16 17:00:06,884 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-02-16 17:00:06,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-16 17:00:06,884 INFO L85 PathProgramCache]: Analyzing trace with hash 1470109151, now seen corresponding path program 1 times [2022-02-16 17:00:06,884 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-16 17:00:06,884 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [629755246] [2022-02-16 17:00:06,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-16 17:00:06,884 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-16 17:00:06,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-16 17:00:06,907 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-16 17:00:06,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-16 17:00:06,919 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-16 17:00:06,919 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-02-16 17:00:06,919 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 2 remaining) [2022-02-16 17:00:06,922 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2022-02-16 17:00:06,922 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-02-16 17:00:06,923 INFO L732 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1] [2022-02-16 17:00:06,923 WARN L235 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2022-02-16 17:00:06,924 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2022-02-16 17:00:06,932 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 17:00:06,932 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 17:00:06,932 WARN L322 ript$VariableManager]: TermVariabe thrThread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 17:00:06,932 WARN L322 ript$VariableManager]: TermVariabe thrThread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 17:00:06,932 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 17:00:06,933 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 17:00:06,933 WARN L322 ript$VariableManager]: TermVariabe thrThread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 17:00:06,933 WARN L322 ript$VariableManager]: TermVariabe thrThread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 17:00:06,933 WARN L322 ript$VariableManager]: TermVariabe thrThread1of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 17:00:06,933 WARN L322 ript$VariableManager]: TermVariabe thrThread1of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 17:00:06,933 WARN L322 ript$VariableManager]: TermVariabe thrThread1of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 17:00:06,934 WARN L322 ript$VariableManager]: TermVariabe thrThread1of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 17:00:06,934 WARN L322 ript$VariableManager]: TermVariabe thrThread1of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 17:00:06,934 WARN L322 ript$VariableManager]: TermVariabe thrThread1of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 17:00:06,934 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 17:00:06,934 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 17:00:06,934 WARN L322 ript$VariableManager]: TermVariabe thrThread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 17:00:06,934 WARN L322 ript$VariableManager]: TermVariabe thrThread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 17:00:06,935 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 17:00:06,935 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 17:00:06,935 WARN L322 ript$VariableManager]: TermVariabe thrThread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 17:00:06,935 WARN L322 ript$VariableManager]: TermVariabe thrThread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 17:00:06,935 WARN L322 ript$VariableManager]: TermVariabe thrThread2of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 17:00:06,935 WARN L322 ript$VariableManager]: TermVariabe thrThread2of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 17:00:06,935 WARN L322 ript$VariableManager]: TermVariabe thrThread2of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 17:00:06,935 WARN L322 ript$VariableManager]: TermVariabe thrThread2of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 17:00:06,935 WARN L322 ript$VariableManager]: TermVariabe thrThread2of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 17:00:06,935 WARN L322 ript$VariableManager]: TermVariabe thrThread2of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 17:00:06,936 WARN L322 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 17:00:06,936 WARN L322 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 17:00:06,936 WARN L322 ript$VariableManager]: TermVariabe thrThread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 17:00:06,936 WARN L322 ript$VariableManager]: TermVariabe thrThread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 17:00:06,936 WARN L322 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 17:00:06,936 WARN L322 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 17:00:06,936 WARN L322 ript$VariableManager]: TermVariabe thrThread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 17:00:06,936 WARN L322 ript$VariableManager]: TermVariabe thrThread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 17:00:06,936 WARN L322 ript$VariableManager]: TermVariabe thrThread3of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 17:00:06,936 WARN L322 ript$VariableManager]: TermVariabe thrThread3of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 17:00:06,936 WARN L322 ript$VariableManager]: TermVariabe thrThread3of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 17:00:06,936 WARN L322 ript$VariableManager]: TermVariabe thrThread3of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 17:00:06,937 WARN L322 ript$VariableManager]: TermVariabe thrThread3of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 17:00:06,937 WARN L322 ript$VariableManager]: TermVariabe thrThread3of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 17:00:06,937 WARN L322 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 17:00:06,937 WARN L322 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 17:00:06,937 WARN L322 ript$VariableManager]: TermVariabe thrThread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 17:00:06,937 WARN L322 ript$VariableManager]: TermVariabe thrThread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 17:00:06,938 WARN L322 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 17:00:06,938 WARN L322 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 17:00:06,938 WARN L322 ript$VariableManager]: TermVariabe thrThread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 17:00:06,938 WARN L322 ript$VariableManager]: TermVariabe thrThread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 17:00:06,938 WARN L322 ript$VariableManager]: TermVariabe thrThread4of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 17:00:06,938 WARN L322 ript$VariableManager]: TermVariabe thrThread4of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 17:00:06,938 WARN L322 ript$VariableManager]: TermVariabe thrThread4of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 17:00:06,938 WARN L322 ript$VariableManager]: TermVariabe thrThread4of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 17:00:06,938 WARN L322 ript$VariableManager]: TermVariabe thrThread4of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 17:00:06,938 WARN L322 ript$VariableManager]: TermVariabe thrThread4of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 17:00:06,938 WARN L322 ript$VariableManager]: TermVariabe thrThread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 17:00:06,938 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 17:00:06,939 WARN L322 ript$VariableManager]: TermVariabe thrThread1of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 17:00:06,939 WARN L322 ript$VariableManager]: TermVariabe thrThread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 17:00:06,939 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 17:00:06,939 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 17:00:06,939 WARN L322 ript$VariableManager]: TermVariabe thrThread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 17:00:06,939 WARN L322 ript$VariableManager]: TermVariabe thrThread2of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 17:00:06,939 WARN L322 ript$VariableManager]: TermVariabe thrThread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 17:00:06,939 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 17:00:06,940 WARN L322 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 17:00:06,940 WARN L322 ript$VariableManager]: TermVariabe thrThread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 17:00:06,940 WARN L322 ript$VariableManager]: TermVariabe thrThread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 17:00:06,940 WARN L322 ript$VariableManager]: TermVariabe thrThread3of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 17:00:06,940 WARN L322 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 17:00:06,940 WARN L322 ript$VariableManager]: TermVariabe thrThread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 17:00:06,940 WARN L322 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 17:00:06,940 WARN L322 ript$VariableManager]: TermVariabe thrThread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 17:00:06,940 WARN L322 ript$VariableManager]: TermVariabe thrThread4of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 17:00:06,940 WARN L322 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 17:00:06,941 INFO L148 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2022-02-16 17:00:06,942 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-02-16 17:00:06,942 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-16 17:00:06,943 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-02-16 17:00:06,944 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (11)] Waiting until timeout for monitored process [2022-02-16 17:00:06,946 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-16 17:00:06,946 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, 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 [2022-02-16 17:00:06,947 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-02-16 17:00:06,947 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 108 places, 109 transitions, 262 flow [2022-02-16 17:00:09,182 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 90067 states, 90034 states have (on average 4.011717795499478) internal successors, (361191), 90066 states have internal predecessors, (361191), 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) [2022-02-16 17:00:09,186 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 51 transitions and produced 52 states. [2022-02-16 17:00:09,186 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-02-16 17:00:09,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-16 17:00:09,186 INFO L85 PathProgramCache]: Analyzing trace with hash 1147745659, now seen corresponding path program 1 times [2022-02-16 17:00:09,186 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-16 17:00:09,187 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1807948425] [2022-02-16 17:00:09,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-16 17:00:09,187 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-16 17:00:09,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-16 17:00:09,210 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-16 17:00:09,210 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-16 17:00:09,210 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1807948425] [2022-02-16 17:00:09,210 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1807948425] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-16 17:00:09,210 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-16 17:00:09,210 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-02-16 17:00:09,210 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2019094776] [2022-02-16 17:00:09,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-16 17:00:09,211 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-02-16 17:00:09,211 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-16 17:00:09,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-02-16 17:00:09,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-02-16 17:00:09,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-16 17:00:09,211 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-16 17:00:09,211 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) [2022-02-16 17:00:09,212 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-16 17:00:09,214 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 51 transitions and produced 52 states. [2022-02-16 17:00:09,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-16 17:00:09,215 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-02-16 17:00:09,215 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-02-16 17:00:09,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-16 17:00:09,215 INFO L85 PathProgramCache]: Analyzing trace with hash -197363061, now seen corresponding path program 1 times [2022-02-16 17:00:09,215 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-16 17:00:09,215 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2009303050] [2022-02-16 17:00:09,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-16 17:00:09,215 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-16 17:00:09,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-16 17:00:09,271 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-16 17:00:09,271 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-16 17:00:09,271 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2009303050] [2022-02-16 17:00:09,271 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2009303050] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-16 17:00:09,271 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-16 17:00:09,271 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-02-16 17:00:09,271 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [678120746] [2022-02-16 17:00:09,271 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-16 17:00:09,272 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-16 17:00:09,272 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-16 17:00:09,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-16 17:00:09,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-02-16 17:00:09,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-16 17:00:09,273 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-16 17:00:09,273 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 6 states have internal predecessors, (43), 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) [2022-02-16 17:00:09,273 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-16 17:00:09,273 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-16 17:00:09,321 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 95 transitions and produced 96 states. [2022-02-16 17:00:09,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-16 17:00:09,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-16 17:00:09,322 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-02-16 17:00:09,322 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-02-16 17:00:09,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-16 17:00:09,322 INFO L85 PathProgramCache]: Analyzing trace with hash 1092255810, now seen corresponding path program 1 times [2022-02-16 17:00:09,322 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-16 17:00:09,322 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1078829209] [2022-02-16 17:00:09,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-16 17:00:09,322 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-16 17:00:09,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-16 17:00:09,384 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-16 17:00:09,384 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-16 17:00:09,385 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1078829209] [2022-02-16 17:00:09,385 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1078829209] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-16 17:00:09,385 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1374636385] [2022-02-16 17:00:09,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-16 17:00:09,385 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-16 17:00:09,385 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-16 17:00:09,387 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-16 17:00:09,400 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-02-16 17:00:09,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-16 17:00:09,459 INFO L263 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 9 conjunts are in the unsatisfiable core [2022-02-16 17:00:09,460 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-16 17:00:09,669 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-16 17:00:09,669 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-16 17:00:09,795 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-16 17:00:09,796 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1374636385] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-16 17:00:09,796 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-16 17:00:09,796 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 20 [2022-02-16 17:00:09,796 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [610976426] [2022-02-16 17:00:09,796 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-16 17:00:09,796 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-02-16 17:00:09,796 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-16 17:00:09,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-02-16 17:00:09,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=104, Invalid=276, Unknown=0, NotChecked=0, Total=380 [2022-02-16 17:00:09,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-16 17:00:09,797 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-16 17:00:09,797 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 5.3) internal successors, (106), 20 states have internal predecessors, (106), 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) [2022-02-16 17:00:09,797 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-16 17:00:09,797 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-02-16 17:00:09,797 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-16 17:00:11,618 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 211 transitions and produced 212 states. [2022-02-16 17:00:11,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-16 17:00:11,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-16 17:00:11,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-02-16 17:00:11,636 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-02-16 17:00:11,836 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2022-02-16 17:00:11,836 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-02-16 17:00:11,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-16 17:00:11,836 INFO L85 PathProgramCache]: Analyzing trace with hash 788539998, now seen corresponding path program 1 times [2022-02-16 17:00:11,837 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-16 17:00:11,837 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [746662718] [2022-02-16 17:00:11,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-16 17:00:11,837 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-16 17:00:11,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-16 17:00:11,929 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 2 proven. 32 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-02-16 17:00:11,929 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-16 17:00:11,929 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [746662718] [2022-02-16 17:00:11,929 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [746662718] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-16 17:00:11,929 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [653194541] [2022-02-16 17:00:11,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-16 17:00:11,930 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-16 17:00:11,930 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-16 17:00:11,931 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-16 17:00:11,964 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-02-16 17:00:12,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-16 17:00:12,017 INFO L263 TraceCheckSpWp]: Trace formula consists of 225 conjuncts, 10 conjunts are in the unsatisfiable core [2022-02-16 17:00:12,018 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-16 17:00:12,260 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 12 proven. 22 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-02-16 17:00:12,260 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-16 17:00:12,447 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 12 proven. 22 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-02-16 17:00:12,447 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [653194541] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-16 17:00:12,447 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-16 17:00:12,447 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 21 [2022-02-16 17:00:12,447 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1241960922] [2022-02-16 17:00:12,447 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-16 17:00:12,448 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-02-16 17:00:12,448 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-16 17:00:12,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-02-16 17:00:12,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=341, Unknown=0, NotChecked=0, Total=420 [2022-02-16 17:00:12,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-16 17:00:12,449 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-16 17:00:12,449 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 8.714285714285714) internal successors, (183), 21 states have internal predecessors, (183), 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) [2022-02-16 17:00:12,449 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-16 17:00:12,449 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-02-16 17:00:12,449 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2022-02-16 17:00:12,449 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-16 17:00:13,708 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 227 transitions and produced 228 states. [2022-02-16 17:00:13,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-16 17:00:13,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-16 17:00:13,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-02-16 17:00:13,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-02-16 17:00:13,726 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-02-16 17:00:13,924 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-16 17:00:13,924 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-02-16 17:00:13,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-16 17:00:13,925 INFO L85 PathProgramCache]: Analyzing trace with hash 131890877, now seen corresponding path program 1 times [2022-02-16 17:00:13,925 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-16 17:00:13,925 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1943541212] [2022-02-16 17:00:13,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-16 17:00:13,925 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-16 17:00:13,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-16 17:00:14,046 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 2 proven. 32 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-02-16 17:00:14,047 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-16 17:00:14,047 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1943541212] [2022-02-16 17:00:14,047 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1943541212] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-16 17:00:14,047 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1990996147] [2022-02-16 17:00:14,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-16 17:00:14,047 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-16 17:00:14,047 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-16 17:00:14,059 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-16 17:00:14,078 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-02-16 17:00:14,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-16 17:00:14,147 INFO L263 TraceCheckSpWp]: Trace formula consists of 247 conjuncts, 10 conjunts are in the unsatisfiable core [2022-02-16 17:00:14,149 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-16 17:00:14,387 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 12 proven. 22 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-02-16 17:00:14,388 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-16 17:00:14,584 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 12 proven. 22 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-02-16 17:00:14,584 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1990996147] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-16 17:00:14,584 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-16 17:00:14,584 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 21 [2022-02-16 17:00:14,585 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [18505147] [2022-02-16 17:00:14,585 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-16 17:00:14,585 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-02-16 17:00:14,585 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-16 17:00:14,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-02-16 17:00:14,586 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=341, Unknown=0, NotChecked=0, Total=420 [2022-02-16 17:00:14,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-16 17:00:14,586 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-16 17:00:14,586 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 8.666666666666666) internal successors, (182), 21 states have internal predecessors, (182), 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) [2022-02-16 17:00:14,586 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-16 17:00:14,586 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-02-16 17:00:14,586 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2022-02-16 17:00:14,586 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2022-02-16 17:00:14,586 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-16 17:00:15,707 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 245 transitions and produced 244 states. [2022-02-16 17:00:15,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-16 17:00:15,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-16 17:00:15,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-02-16 17:00:15,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-02-16 17:00:15,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-02-16 17:00:15,728 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2022-02-16 17:00:15,909 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable19 [2022-02-16 17:00:15,909 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-02-16 17:00:15,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-16 17:00:15,910 INFO L85 PathProgramCache]: Analyzing trace with hash -1055417219, now seen corresponding path program 2 times [2022-02-16 17:00:15,910 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-16 17:00:15,910 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [470607245] [2022-02-16 17:00:15,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-16 17:00:15,910 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-16 17:00:15,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-16 17:00:16,060 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-02-16 17:00:16,060 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-16 17:00:16,060 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [470607245] [2022-02-16 17:00:16,060 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [470607245] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-16 17:00:16,060 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1996182994] [2022-02-16 17:00:16,060 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-02-16 17:00:16,060 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-16 17:00:16,061 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-16 17:00:16,069 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-16 17:00:16,070 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-02-16 17:00:16,160 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-02-16 17:00:16,160 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-16 17:00:16,161 INFO L263 TraceCheckSpWp]: Trace formula consists of 269 conjuncts, 13 conjunts are in the unsatisfiable core [2022-02-16 17:00:16,164 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-16 17:00:16,630 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-02-16 17:00:16,630 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-16 17:00:16,820 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-02-16 17:00:16,820 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1996182994] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-16 17:00:16,820 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-16 17:00:16,820 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 27 [2022-02-16 17:00:16,821 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1924689768] [2022-02-16 17:00:16,821 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-16 17:00:16,822 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2022-02-16 17:00:16,822 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-16 17:00:16,822 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2022-02-16 17:00:16,823 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=177, Invalid=525, Unknown=0, NotChecked=0, Total=702 [2022-02-16 17:00:16,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-16 17:00:16,823 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-16 17:00:16,823 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 5.925925925925926) internal successors, (160), 27 states have internal predecessors, (160), 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) [2022-02-16 17:00:16,823 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-16 17:00:16,823 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-02-16 17:00:16,823 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2022-02-16 17:00:16,823 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2022-02-16 17:00:16,823 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2022-02-16 17:00:16,823 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-16 17:00:17,653 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 188 transitions and produced 189 states. [2022-02-16 17:00:17,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-16 17:00:17,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-16 17:00:17,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-02-16 17:00:17,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-02-16 17:00:17,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-02-16 17:00:17,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-02-16 17:00:17,674 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2022-02-16 17:00:17,858 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-16 17:00:17,858 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-02-16 17:00:17,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-16 17:00:17,859 INFO L85 PathProgramCache]: Analyzing trace with hash -1090444432, now seen corresponding path program 1 times [2022-02-16 17:00:17,859 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-16 17:00:17,859 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1791195735] [2022-02-16 17:00:17,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-16 17:00:17,859 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-16 17:00:17,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-16 17:00:17,889 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-16 17:00:17,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-16 17:00:17,904 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-16 17:00:17,904 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-02-16 17:00:17,905 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 2 remaining) [2022-02-16 17:00:17,905 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2022-02-16 17:00:17,905 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-02-16 17:00:17,906 INFO L732 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1] [2022-02-16 17:00:17,906 WARN L235 ceAbstractionStarter]: 4 thread instances were not sufficient, I will increase this number and restart the analysis [2022-02-16 17:00:17,906 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 5 thread instances. [2022-02-16 17:00:17,917 WARN L322 ript$VariableManager]: TermVariabe |thrThread4of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 17:00:17,917 WARN L322 ript$VariableManager]: TermVariabe |thrThread4of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 17:00:17,917 WARN L322 ript$VariableManager]: TermVariabe thrThread4of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 17:00:17,917 WARN L322 ript$VariableManager]: TermVariabe thrThread4of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 17:00:17,918 WARN L322 ript$VariableManager]: TermVariabe |thrThread4of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 17:00:17,918 WARN L322 ript$VariableManager]: TermVariabe |thrThread4of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 17:00:17,918 WARN L322 ript$VariableManager]: TermVariabe thrThread4of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 17:00:17,918 WARN L322 ript$VariableManager]: TermVariabe thrThread4of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 17:00:17,918 WARN L322 ript$VariableManager]: TermVariabe thrThread4of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 17:00:17,918 WARN L322 ript$VariableManager]: TermVariabe thrThread4of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 17:00:17,918 WARN L322 ript$VariableManager]: TermVariabe thrThread4of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 17:00:17,918 WARN L322 ript$VariableManager]: TermVariabe thrThread4of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 17:00:17,918 WARN L322 ript$VariableManager]: TermVariabe thrThread4of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 17:00:17,918 WARN L322 ript$VariableManager]: TermVariabe thrThread4of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 17:00:17,918 WARN L322 ript$VariableManager]: TermVariabe |thrThread5of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 17:00:17,918 WARN L322 ript$VariableManager]: TermVariabe |thrThread5of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 17:00:17,918 WARN L322 ript$VariableManager]: TermVariabe thrThread5of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 17:00:17,919 WARN L322 ript$VariableManager]: TermVariabe thrThread5of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 17:00:17,919 WARN L322 ript$VariableManager]: TermVariabe |thrThread5of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 17:00:17,919 WARN L322 ript$VariableManager]: TermVariabe |thrThread5of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 17:00:17,919 WARN L322 ript$VariableManager]: TermVariabe thrThread5of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 17:00:17,919 WARN L322 ript$VariableManager]: TermVariabe thrThread5of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 17:00:17,919 WARN L322 ript$VariableManager]: TermVariabe thrThread5of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 17:00:17,919 WARN L322 ript$VariableManager]: TermVariabe thrThread5of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 17:00:17,919 WARN L322 ript$VariableManager]: TermVariabe thrThread5of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 17:00:17,919 WARN L322 ript$VariableManager]: TermVariabe thrThread5of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 17:00:17,919 WARN L322 ript$VariableManager]: TermVariabe thrThread5of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 17:00:17,919 WARN L322 ript$VariableManager]: TermVariabe thrThread5of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 17:00:17,919 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 17:00:17,919 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 17:00:17,919 WARN L322 ript$VariableManager]: TermVariabe thrThread1of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 17:00:17,919 WARN L322 ript$VariableManager]: TermVariabe thrThread1of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 17:00:17,920 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 17:00:17,920 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 17:00:17,920 WARN L322 ript$VariableManager]: TermVariabe thrThread1of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 17:00:17,920 WARN L322 ript$VariableManager]: TermVariabe thrThread1of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 17:00:17,920 WARN L322 ript$VariableManager]: TermVariabe thrThread1of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 17:00:17,920 WARN L322 ript$VariableManager]: TermVariabe thrThread1of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 17:00:17,920 WARN L322 ript$VariableManager]: TermVariabe thrThread1of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 17:00:17,920 WARN L322 ript$VariableManager]: TermVariabe thrThread1of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 17:00:17,920 WARN L322 ript$VariableManager]: TermVariabe thrThread1of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 17:00:17,920 WARN L322 ript$VariableManager]: TermVariabe thrThread1of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 17:00:17,920 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 17:00:17,920 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 17:00:17,920 WARN L322 ript$VariableManager]: TermVariabe thrThread2of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 17:00:17,920 WARN L322 ript$VariableManager]: TermVariabe thrThread2of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 17:00:17,920 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 17:00:17,920 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 17:00:17,921 WARN L322 ript$VariableManager]: TermVariabe thrThread2of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 17:00:17,921 WARN L322 ript$VariableManager]: TermVariabe thrThread2of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 17:00:17,921 WARN L322 ript$VariableManager]: TermVariabe thrThread2of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 17:00:17,921 WARN L322 ript$VariableManager]: TermVariabe thrThread2of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 17:00:17,921 WARN L322 ript$VariableManager]: TermVariabe thrThread2of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 17:00:17,921 WARN L322 ript$VariableManager]: TermVariabe thrThread2of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 17:00:17,921 WARN L322 ript$VariableManager]: TermVariabe thrThread2of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 17:00:17,921 WARN L322 ript$VariableManager]: TermVariabe thrThread2of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 17:00:17,921 WARN L322 ript$VariableManager]: TermVariabe |thrThread3of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 17:00:17,921 WARN L322 ript$VariableManager]: TermVariabe |thrThread3of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 17:00:17,921 WARN L322 ript$VariableManager]: TermVariabe thrThread3of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 17:00:17,921 WARN L322 ript$VariableManager]: TermVariabe thrThread3of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 17:00:17,922 WARN L322 ript$VariableManager]: TermVariabe |thrThread3of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 17:00:17,922 WARN L322 ript$VariableManager]: TermVariabe |thrThread3of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 17:00:17,922 WARN L322 ript$VariableManager]: TermVariabe thrThread3of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 17:00:17,922 WARN L322 ript$VariableManager]: TermVariabe thrThread3of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 17:00:17,922 WARN L322 ript$VariableManager]: TermVariabe thrThread3of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 17:00:17,922 WARN L322 ript$VariableManager]: TermVariabe thrThread3of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 17:00:17,922 WARN L322 ript$VariableManager]: TermVariabe thrThread3of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 17:00:17,922 WARN L322 ript$VariableManager]: TermVariabe thrThread3of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 17:00:17,922 WARN L322 ript$VariableManager]: TermVariabe thrThread3of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 17:00:17,922 WARN L322 ript$VariableManager]: TermVariabe thrThread3of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 17:00:17,923 WARN L322 ript$VariableManager]: TermVariabe thrThread1of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 17:00:17,923 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 17:00:17,923 WARN L322 ript$VariableManager]: TermVariabe thrThread1of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 17:00:17,923 WARN L322 ript$VariableManager]: TermVariabe thrThread1of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 17:00:17,923 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 17:00:17,923 WARN L322 ript$VariableManager]: TermVariabe thrThread2of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 17:00:17,923 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 17:00:17,923 WARN L322 ript$VariableManager]: TermVariabe thrThread2of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 17:00:17,923 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 17:00:17,923 WARN L322 ript$VariableManager]: TermVariabe thrThread2of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 17:00:17,923 WARN L322 ript$VariableManager]: TermVariabe |thrThread3of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 17:00:17,924 WARN L322 ript$VariableManager]: TermVariabe thrThread3of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 17:00:17,924 WARN L322 ript$VariableManager]: TermVariabe thrThread3of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 17:00:17,924 WARN L322 ript$VariableManager]: TermVariabe thrThread3of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 17:00:17,924 WARN L322 ript$VariableManager]: TermVariabe |thrThread3of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 17:00:17,925 WARN L322 ript$VariableManager]: TermVariabe |thrThread4of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 17:00:17,925 WARN L322 ript$VariableManager]: TermVariabe thrThread4of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 17:00:17,925 WARN L322 ript$VariableManager]: TermVariabe |thrThread4of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 17:00:17,925 WARN L322 ript$VariableManager]: TermVariabe thrThread4of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 17:00:17,925 WARN L322 ript$VariableManager]: TermVariabe thrThread4of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 17:00:17,925 WARN L322 ript$VariableManager]: TermVariabe thrThread5of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 17:00:17,925 WARN L322 ript$VariableManager]: TermVariabe thrThread5of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 17:00:17,925 WARN L322 ript$VariableManager]: TermVariabe |thrThread5of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 17:00:17,925 WARN L322 ript$VariableManager]: TermVariabe |thrThread5of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 17:00:17,926 WARN L322 ript$VariableManager]: TermVariabe thrThread5of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 17:00:17,927 INFO L148 ThreadInstanceAdder]: Constructed 5 joinOtherThreadTransitions. [2022-02-16 17:00:17,931 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-02-16 17:00:17,931 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-16 17:00:17,944 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-02-16 17:00:17,945 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (16)] Waiting until timeout for monitored process [2022-02-16 17:00:17,946 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-16 17:00:17,947 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, 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 [2022-02-16 17:00:17,947 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-02-16 17:00:17,948 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 116 places, 116 transitions, 292 flow [2022-02-16 17:00:38,987 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 617155 states, 617090 states have (on average 4.739409162358813) internal successors, (2924642), 617154 states have internal predecessors, (2924642), 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) [2022-02-16 17:00:39,005 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 51 transitions and produced 52 states. [2022-02-16 17:00:39,005 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-02-16 17:00:39,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-16 17:00:39,005 INFO L85 PathProgramCache]: Analyzing trace with hash 1729827963, now seen corresponding path program 1 times [2022-02-16 17:00:39,005 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-16 17:00:39,005 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1335504751] [2022-02-16 17:00:39,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-16 17:00:39,023 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-16 17:00:39,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-16 17:00:39,035 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-16 17:00:39,035 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-16 17:00:39,035 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1335504751] [2022-02-16 17:00:39,035 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1335504751] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-16 17:00:39,035 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-16 17:00:39,036 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-02-16 17:00:39,036 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [638132843] [2022-02-16 17:00:39,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-16 17:00:39,036 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-02-16 17:00:39,036 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-16 17:00:39,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-02-16 17:00:39,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-02-16 17:00:39,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-16 17:00:39,036 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-16 17:00:39,037 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) [2022-02-16 17:00:39,037 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-16 17:00:39,039 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 51 transitions and produced 52 states. [2022-02-16 17:00:39,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-16 17:00:39,055 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-02-16 17:00:39,055 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-02-16 17:00:39,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-16 17:00:39,055 INFO L85 PathProgramCache]: Analyzing trace with hash -1009870209, now seen corresponding path program 1 times [2022-02-16 17:00:39,056 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-16 17:00:39,056 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1869769274] [2022-02-16 17:00:39,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-16 17:00:39,056 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-16 17:00:39,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-16 17:00:39,126 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-16 17:00:39,126 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-16 17:00:39,126 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1869769274] [2022-02-16 17:00:39,126 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1869769274] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-16 17:00:39,126 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-16 17:00:39,127 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-02-16 17:00:39,127 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1683614259] [2022-02-16 17:00:39,127 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-16 17:00:39,128 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-16 17:00:39,128 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-16 17:00:39,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-16 17:00:39,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-02-16 17:00:39,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-16 17:00:39,139 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-16 17:00:39,139 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 6 states have internal predecessors, (43), 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) [2022-02-16 17:00:39,139 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-16 17:00:39,139 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-16 17:00:39,204 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 95 transitions and produced 96 states. [2022-02-16 17:00:39,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-16 17:00:39,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-16 17:00:39,219 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-02-16 17:00:39,219 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-02-16 17:00:39,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-16 17:00:39,220 INFO L85 PathProgramCache]: Analyzing trace with hash -796867189, now seen corresponding path program 1 times [2022-02-16 17:00:39,220 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-16 17:00:39,220 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [115728055] [2022-02-16 17:00:39,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-16 17:00:39,220 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-16 17:00:39,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-16 17:00:39,282 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-16 17:00:39,282 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-16 17:00:39,282 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [115728055] [2022-02-16 17:00:39,282 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [115728055] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-16 17:00:39,282 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1913528272] [2022-02-16 17:00:39,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-16 17:00:39,282 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-16 17:00:39,282 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-16 17:00:39,284 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-16 17:00:39,285 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2022-02-16 17:00:39,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-16 17:00:39,361 INFO L263 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 9 conjunts are in the unsatisfiable core [2022-02-16 17:00:39,362 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-16 17:00:39,581 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-16 17:00:39,581 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-16 17:00:39,710 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-16 17:00:39,710 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1913528272] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-16 17:00:39,711 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-16 17:00:39,711 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 20 [2022-02-16 17:00:39,711 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2115040517] [2022-02-16 17:00:39,711 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-16 17:00:39,711 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-02-16 17:00:39,711 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-16 17:00:39,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-02-16 17:00:39,712 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=104, Invalid=276, Unknown=0, NotChecked=0, Total=380 [2022-02-16 17:00:39,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-16 17:00:39,712 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-16 17:00:39,712 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 5.3) internal successors, (106), 20 states have internal predecessors, (106), 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) [2022-02-16 17:00:39,712 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-16 17:00:39,712 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-02-16 17:00:39,712 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-16 17:00:43,433 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 211 transitions and produced 212 states. [2022-02-16 17:00:43,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-16 17:00:43,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-16 17:00:43,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-02-16 17:00:43,452 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2022-02-16 17:00:43,643 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2022-02-16 17:00:43,643 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-02-16 17:00:43,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-16 17:00:43,644 INFO L85 PathProgramCache]: Analyzing trace with hash -1839099791, now seen corresponding path program 1 times [2022-02-16 17:00:43,644 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-16 17:00:43,644 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1740469071] [2022-02-16 17:00:43,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-16 17:00:43,644 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-16 17:00:43,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-16 17:00:43,719 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 2 proven. 32 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-02-16 17:00:43,720 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-16 17:00:43,720 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1740469071] [2022-02-16 17:00:43,720 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1740469071] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-16 17:00:43,720 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [827541930] [2022-02-16 17:00:43,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-16 17:00:43,720 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-16 17:00:43,720 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-16 17:00:43,721 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-16 17:00:43,722 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2022-02-16 17:00:43,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-16 17:00:43,801 INFO L263 TraceCheckSpWp]: Trace formula consists of 225 conjuncts, 10 conjunts are in the unsatisfiable core [2022-02-16 17:00:43,802 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-16 17:00:44,030 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 12 proven. 22 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-02-16 17:00:44,031 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-16 17:00:44,202 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 12 proven. 22 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-02-16 17:00:44,203 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [827541930] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-16 17:00:44,203 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-16 17:00:44,203 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 21 [2022-02-16 17:00:44,203 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [509277581] [2022-02-16 17:00:44,203 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-16 17:00:44,203 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-02-16 17:00:44,203 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-16 17:00:44,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-02-16 17:00:44,204 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=341, Unknown=0, NotChecked=0, Total=420 [2022-02-16 17:00:44,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-16 17:00:44,204 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-16 17:00:44,204 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 8.714285714285714) internal successors, (183), 21 states have internal predecessors, (183), 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) [2022-02-16 17:00:44,204 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-16 17:00:44,204 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-02-16 17:00:44,204 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2022-02-16 17:00:44,205 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-16 17:00:45,297 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 227 transitions and produced 228 states. [2022-02-16 17:00:45,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-16 17:00:45,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-16 17:00:45,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-02-16 17:00:45,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-02-16 17:00:45,315 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2022-02-16 17:00:45,515 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2022-02-16 17:00:45,515 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-02-16 17:00:45,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-16 17:00:45,516 INFO L85 PathProgramCache]: Analyzing trace with hash -1152628784, now seen corresponding path program 1 times [2022-02-16 17:00:45,516 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-16 17:00:45,516 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1736029492] [2022-02-16 17:00:45,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-16 17:00:45,516 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-16 17:00:45,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-16 17:00:45,631 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 2 proven. 32 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-02-16 17:00:45,632 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-16 17:00:45,632 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1736029492] [2022-02-16 17:00:45,632 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1736029492] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-16 17:00:45,632 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [767942052] [2022-02-16 17:00:45,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-16 17:00:45,632 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-16 17:00:45,632 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-16 17:00:45,634 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-16 17:00:45,637 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2022-02-16 17:00:45,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-16 17:00:45,719 INFO L263 TraceCheckSpWp]: Trace formula consists of 247 conjuncts, 10 conjunts are in the unsatisfiable core [2022-02-16 17:00:45,720 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-16 17:00:45,948 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 12 proven. 22 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-02-16 17:00:45,948 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-16 17:00:46,136 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 12 proven. 22 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-02-16 17:00:46,137 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [767942052] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-16 17:00:46,137 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-16 17:00:46,137 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 21 [2022-02-16 17:00:46,137 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1293828965] [2022-02-16 17:00:46,137 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-16 17:00:46,137 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-02-16 17:00:46,137 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-16 17:00:46,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-02-16 17:00:46,138 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=341, Unknown=0, NotChecked=0, Total=420 [2022-02-16 17:00:46,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-16 17:00:46,138 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-16 17:00:46,138 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 8.666666666666666) internal successors, (182), 21 states have internal predecessors, (182), 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) [2022-02-16 17:00:46,138 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-16 17:00:46,138 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-02-16 17:00:46,138 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2022-02-16 17:00:46,138 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2022-02-16 17:00:46,139 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-16 17:00:47,221 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 245 transitions and produced 244 states. [2022-02-16 17:00:47,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-16 17:00:47,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-16 17:00:47,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-02-16 17:00:47,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-02-16 17:00:47,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-02-16 17:00:47,245 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2022-02-16 17:00:47,435 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2022-02-16 17:00:47,435 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-02-16 17:00:47,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-16 17:00:47,436 INFO L85 PathProgramCache]: Analyzing trace with hash 1328205264, now seen corresponding path program 2 times [2022-02-16 17:00:47,436 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-16 17:00:47,436 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [751291442] [2022-02-16 17:00:47,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-16 17:00:47,437 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-16 17:00:47,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-16 17:00:47,550 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-02-16 17:00:47,550 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-16 17:00:47,550 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [751291442] [2022-02-16 17:00:47,550 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [751291442] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-16 17:00:47,550 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [435815270] [2022-02-16 17:00:47,550 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-02-16 17:00:47,550 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-16 17:00:47,550 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-16 17:00:47,551 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-16 17:00:47,573 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2022-02-16 17:00:47,662 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-02-16 17:00:47,662 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-16 17:00:47,663 INFO L263 TraceCheckSpWp]: Trace formula consists of 269 conjuncts, 13 conjunts are in the unsatisfiable core [2022-02-16 17:00:47,665 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-16 17:00:48,022 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-02-16 17:00:48,022 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-16 17:00:48,190 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-02-16 17:00:48,190 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [435815270] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-16 17:00:48,190 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-16 17:00:48,190 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 27 [2022-02-16 17:00:48,190 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1739262526] [2022-02-16 17:00:48,190 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-16 17:00:48,191 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2022-02-16 17:00:48,191 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-16 17:00:48,191 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2022-02-16 17:00:48,192 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=177, Invalid=525, Unknown=0, NotChecked=0, Total=702 [2022-02-16 17:00:48,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-16 17:00:48,192 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-16 17:00:48,192 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 5.925925925925926) internal successors, (160), 27 states have internal predecessors, (160), 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) [2022-02-16 17:00:48,192 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-16 17:00:48,207 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-02-16 17:00:48,207 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2022-02-16 17:00:48,207 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2022-02-16 17:00:48,207 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2022-02-16 17:00:48,207 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-16 17:00:51,078 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 446 transitions and produced 445 states. [2022-02-16 17:00:51,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-16 17:00:51,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-16 17:00:51,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-02-16 17:00:51,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-02-16 17:00:51,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-02-16 17:00:51,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-02-16 17:00:51,097 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2022-02-16 17:00:51,285 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27,20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-16 17:00:51,285 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-02-16 17:00:51,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-16 17:00:51,286 INFO L85 PathProgramCache]: Analyzing trace with hash -248980560, now seen corresponding path program 1 times [2022-02-16 17:00:51,286 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-16 17:00:51,286 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1336213604] [2022-02-16 17:00:51,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-16 17:00:51,286 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-16 17:00:51,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-16 17:00:51,470 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 36 proven. 90 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-02-16 17:00:51,470 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-16 17:00:51,470 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1336213604] [2022-02-16 17:00:51,471 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1336213604] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-16 17:00:51,471 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [563824212] [2022-02-16 17:00:51,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-16 17:00:51,471 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-16 17:00:51,471 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-16 17:00:51,472 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-16 17:00:51,473 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2022-02-16 17:00:51,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-16 17:00:51,593 INFO L263 TraceCheckSpWp]: Trace formula consists of 339 conjuncts, 18 conjunts are in the unsatisfiable core [2022-02-16 17:00:51,596 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-16 17:00:52,008 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 64 proven. 62 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-02-16 17:00:52,009 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-16 17:00:52,302 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 64 proven. 62 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-02-16 17:00:52,302 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [563824212] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-16 17:00:52,302 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-16 17:00:52,303 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 19, 19] total 33 [2022-02-16 17:00:52,303 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [137907473] [2022-02-16 17:00:52,303 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-16 17:00:52,303 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2022-02-16 17:00:52,303 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-16 17:00:52,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2022-02-16 17:00:52,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=167, Invalid=889, Unknown=0, NotChecked=0, Total=1056 [2022-02-16 17:00:52,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-16 17:00:52,304 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-16 17:00:52,304 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 33 states have (on average 8.030303030303031) internal successors, (265), 33 states have internal predecessors, (265), 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) [2022-02-16 17:00:52,304 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-16 17:00:52,304 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-02-16 17:00:52,305 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2022-02-16 17:00:52,305 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2022-02-16 17:00:52,305 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2022-02-16 17:00:52,305 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2022-02-16 17:00:52,305 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-16 17:00:55,120 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 462 transitions and produced 461 states. [2022-02-16 17:00:55,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-16 17:00:55,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-16 17:00:55,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-02-16 17:00:55,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-02-16 17:00:55,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-02-16 17:00:55,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-02-16 17:00:55,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-02-16 17:00:55,138 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2022-02-16 17:00:55,323 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2022-02-16 17:00:55,324 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-02-16 17:00:55,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-16 17:00:55,324 INFO L85 PathProgramCache]: Analyzing trace with hash -1963694897, now seen corresponding path program 1 times [2022-02-16 17:00:55,324 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-16 17:00:55,324 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1924128300] [2022-02-16 17:00:55,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-16 17:00:55,325 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-16 17:00:55,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-16 17:00:55,544 INFO L134 CoverageAnalysis]: Checked inductivity of 194 backedges. 36 proven. 93 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2022-02-16 17:00:55,544 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-16 17:00:55,544 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1924128300] [2022-02-16 17:00:55,544 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1924128300] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-16 17:00:55,544 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1155001530] [2022-02-16 17:00:55,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-16 17:00:55,544 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-16 17:00:55,544 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-16 17:00:55,546 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-16 17:00:55,547 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2022-02-16 17:00:55,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-16 17:00:55,662 INFO L263 TraceCheckSpWp]: Trace formula consists of 361 conjuncts, 18 conjunts are in the unsatisfiable core [2022-02-16 17:00:55,665 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-16 17:00:56,092 INFO L134 CoverageAnalysis]: Checked inductivity of 194 backedges. 64 proven. 65 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2022-02-16 17:00:56,092 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-16 17:00:56,303 INFO L134 CoverageAnalysis]: Checked inductivity of 194 backedges. 64 proven. 65 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2022-02-16 17:00:56,303 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1155001530] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-16 17:00:56,303 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-16 17:00:56,303 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 19, 19] total 33 [2022-02-16 17:00:56,304 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1912398612] [2022-02-16 17:00:56,304 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-16 17:00:56,304 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2022-02-16 17:00:56,304 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-16 17:00:56,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2022-02-16 17:00:56,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=167, Invalid=889, Unknown=0, NotChecked=0, Total=1056 [2022-02-16 17:00:56,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-16 17:00:56,305 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-16 17:00:56,305 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 33 states have (on average 7.757575757575758) internal successors, (256), 33 states have internal predecessors, (256), 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) [2022-02-16 17:00:56,305 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-16 17:00:56,305 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-02-16 17:00:56,305 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2022-02-16 17:00:56,305 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2022-02-16 17:00:56,305 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2022-02-16 17:00:56,305 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2022-02-16 17:00:56,305 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 37 states. [2022-02-16 17:00:56,305 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-16 17:00:59,207 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 480 transitions and produced 476 states. [2022-02-16 17:00:59,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-16 17:00:59,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-16 17:00:59,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-02-16 17:00:59,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-02-16 17:00:59,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-02-16 17:00:59,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-02-16 17:00:59,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-02-16 17:00:59,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-02-16 17:00:59,228 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2022-02-16 17:00:59,426 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-16 17:00:59,427 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-02-16 17:00:59,427 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-16 17:00:59,427 INFO L85 PathProgramCache]: Analyzing trace with hash 436256911, now seen corresponding path program 2 times [2022-02-16 17:00:59,427 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-16 17:00:59,427 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1295684599] [2022-02-16 17:00:59,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-16 17:00:59,427 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-16 17:00:59,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-16 17:00:59,466 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-16 17:00:59,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-16 17:00:59,576 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-16 17:00:59,576 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-02-16 17:00:59,576 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2022-02-16 17:00:59,576 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION (0 of 2 remaining) [2022-02-16 17:00:59,577 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-02-16 17:00:59,578 INFO L732 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1, 1, 1] [2022-02-16 17:00:59,581 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 5 thread instances [2022-02-16 17:00:59,581 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-02-16 17:00:59,775 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.02 05:00:59 BasicIcfg [2022-02-16 17:00:59,775 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-02-16 17:00:59,776 INFO L158 Benchmark]: Toolchain (without parser) took 66000.92ms. Allocated memory was 184.5MB in the beginning and 7.5GB in the end (delta: 7.3GB). Free memory was 133.0MB in the beginning and 5.4GB in the end (delta: -5.2GB). Peak memory consumption was 3.4GB. Max. memory is 8.0GB. [2022-02-16 17:00:59,776 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 184.5MB. Free memory was 150.8MB in the beginning and 150.7MB in the end (delta: 71.4kB). There was no memory consumed. Max. memory is 8.0GB. [2022-02-16 17:00:59,776 INFO L158 Benchmark]: CACSL2BoogieTranslator took 434.78ms. Allocated memory is still 184.5MB. Free memory was 132.7MB in the beginning and 150.7MB in the end (delta: -18.0MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2022-02-16 17:00:59,776 INFO L158 Benchmark]: Boogie Procedure Inliner took 32.26ms. Allocated memory is still 184.5MB. Free memory was 150.7MB in the beginning and 148.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-02-16 17:00:59,776 INFO L158 Benchmark]: Boogie Preprocessor took 17.24ms. Allocated memory is still 184.5MB. Free memory was 148.6MB in the beginning and 147.0MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-02-16 17:00:59,777 INFO L158 Benchmark]: RCFGBuilder took 271.63ms. Allocated memory is still 184.5MB. Free memory was 147.0MB in the beginning and 133.9MB in the end (delta: 13.1MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2022-02-16 17:00:59,777 INFO L158 Benchmark]: TraceAbstraction took 65239.30ms. Allocated memory was 184.5MB in the beginning and 7.5GB in the end (delta: 7.3GB). Free memory was 133.9MB in the beginning and 5.4GB in the end (delta: -5.2GB). Peak memory consumption was 3.4GB. Max. memory is 8.0GB. [2022-02-16 17:00:59,778 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 184.5MB. Free memory was 150.8MB in the beginning and 150.7MB in the end (delta: 71.4kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 434.78ms. Allocated memory is still 184.5MB. Free memory was 132.7MB in the beginning and 150.7MB in the end (delta: -18.0MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 32.26ms. Allocated memory is still 184.5MB. Free memory was 150.7MB in the beginning and 148.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 17.24ms. Allocated memory is still 184.5MB. Free memory was 148.6MB in the beginning and 147.0MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 271.63ms. Allocated memory is still 184.5MB. Free memory was 147.0MB in the beginning and 133.9MB in the end (delta: 13.1MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * TraceAbstraction took 65239.30ms. Allocated memory was 184.5MB in the beginning and 7.5GB in the end (delta: 7.3GB). Free memory was 133.9MB in the beginning and 5.4GB in the end (delta: -5.2GB). Peak memory consumption was 3.4GB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1, Independence queries for same thread: 0 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1, Independence queries for same thread: 0 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1, Independence queries for same thread: 0 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1, Independence queries for same thread: 0 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1, Independence queries for same thread: 0 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 689]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L690] 0 int a[10] = {0}; VAL [a={3:0}] [L691] 0 int x = 0; VAL [a={3:0}, x=0] [L698] 0 pthread_t t[10]; VAL [\old(argc)=50, a={3:0}, argc=50, argv={49:51}, argv={49:51}, t={6:0}, x=0] [L699] 0 int i; VAL [\old(argc)=50, a={3:0}, argc=50, argv={49:51}, argv={49:51}, t={6:0}, x=0] [L700] 0 int n = __VERIFIER_nondet_uint(); VAL [\old(argc)=50, __VERIFIER_nondet_uint()=5, a={3:0}, argc=50, argv={49:51}, argv={49:51}, n=5, t={6:0}, x=0] [L701] CALL 0 assume_abort_if_not(n >= 10/2 && n <= 10) [L687] COND FALSE 0 !(!cond) VAL [\old(cond)=1, a={3:0}, cond=1, x=0] [L701] RET 0 assume_abort_if_not(n >= 10/2 && n <= 10) [L702] 0 i = 0 VAL [\old(argc)=50, a={3:0}, argc=50, argv={49:51}, argv={49:51}, i=0, n=5, t={6:0}, x=0] [L702] COND TRUE 0 i < n VAL [\old(argc)=50, a={3:0}, argc=50, argv={49:51}, argv={49:51}, i=0, n=5, t={6:0}, x=0] [L703] FCALL, FORK 0 pthread_create(&t[i], 0, thr, 0) VAL [\old(argc)=50, a={3:0}, arg={0:0}, argc=50, argv={49:51}, argv={49:51}, i=0, n=5, pthread_create(&t[i], 0, thr, 0)=-1, t={6:0}, x=0] [L702] 0 i++ VAL [\old(argc)=50, a={3:0}, arg={0:0}, argc=50, argv={49:51}, argv={49:51}, i=1, n=5, t={6:0}, x=0] [L702] COND TRUE 0 i < n VAL [\old(argc)=50, a={3:0}, arg={0:0}, argc=50, argv={49:51}, argv={49:51}, i=1, n=5, t={6:0}, x=0] [L703] FCALL, FORK 0 pthread_create(&t[i], 0, thr, 0) VAL [\old(argc)=50, a={3:0}, arg={0:0}, argc=50, argv={49:51}, argv={49:51}, i=1, n=5, pthread_create(&t[i], 0, thr, 0)=0, t={6:0}, x=0] [L702] 0 i++ VAL [\old(argc)=50, a={3:0}, arg={0:0}, argc=50, argv={49:51}, argv={49:51}, i=2, n=5, t={6:0}, x=0] [L702] COND TRUE 0 i < n VAL [\old(argc)=50, a={3:0}, arg={0:0}, argc=50, argv={49:51}, argv={49:51}, i=2, n=5, t={6:0}, x=0] [L703] FCALL, FORK 0 pthread_create(&t[i], 0, thr, 0) VAL [\old(argc)=50, a={3:0}, arg={0:0}, argc=50, argv={49:51}, argv={49:51}, i=2, n=5, pthread_create(&t[i], 0, thr, 0)=1, t={6:0}, x=0] [L702] 0 i++ VAL [\old(argc)=50, a={3:0}, arg={0:0}, argc=50, argv={49:51}, argv={49:51}, i=3, n=5, t={6:0}, x=0] [L702] COND TRUE 0 i < n VAL [\old(argc)=50, a={3:0}, arg={0:0}, argc=50, argv={49:51}, argv={49:51}, i=3, n=5, t={6:0}, x=0] [L703] FCALL, FORK 0 pthread_create(&t[i], 0, thr, 0) VAL [\old(argc)=50, a={3:0}, arg={0:0}, argc=50, argv={49:51}, argv={49:51}, i=3, n=5, pthread_create(&t[i], 0, thr, 0)=2, t={6:0}, x=0] [L702] 0 i++ VAL [\old(argc)=50, a={3:0}, arg={0:0}, argc=50, argv={49:51}, argv={49:51}, i=4, n=5, t={6:0}, x=0] [L702] COND TRUE 0 i < n VAL [\old(argc)=50, a={3:0}, arg={0:0}, argc=50, argv={49:51}, argv={49:51}, i=4, n=5, t={6:0}, x=0] [L703] FCALL, FORK 0 pthread_create(&t[i], 0, thr, 0) VAL [\old(argc)=50, a={3:0}, arg={0:0}, argc=50, argv={49:51}, argv={49:51}, i=4, n=5, pthread_create(&t[i], 0, thr, 0)=3, t={6:0}, x=0] [L702] 0 i++ VAL [\old(argc)=50, a={3:0}, arg={0:0}, argc=50, argv={49:51}, argv={49:51}, i=5, n=5, t={6:0}, x=0] [L702] COND FALSE 0 !(i < n) VAL [\old(argc)=50, a={3:0}, arg={0:0}, argc=50, argv={49:51}, argv={49:51}, i=5, n=5, t={6:0}, x=0] [L705] 0 i = 0 VAL [\old(argc)=50, a={3:0}, arg={0:0}, argc=50, argv={49:51}, argv={49:51}, i=0, n=5, t={6:0}, x=0] [L705] COND TRUE 0 i < n VAL [\old(argc)=50, a={3:0}, arg={0:0}, argc=50, argv={49:51}, argv={49:51}, i=0, n=5, t={6:0}, x=0] [L706] 0 t[i] VAL [\old(argc)=50, a={3:0}, arg={0:0}, argc=50, argv={49:51}, argv={49:51}, i=0, n=5, t={6:0}, t[i]=-1, x=0] [L693] 4 int t = x; VAL [a={3:0}, arg={0:0}, arg={0:0}, t=0, x=0] [L694] 4 a[t] = 1 VAL [a={3:0}, arg={0:0}, arg={0:0}, t=0, x=0] [L695] 4 x = t + 1 VAL [a={3:0}, arg={0:0}, arg={0:0}, t=0, x=1] [L693] 5 int t = x; VAL [a={3:0}, arg={0:0}, arg={0:0}, t=0, x=1] [L694] 5 a[t] = 1 VAL [a={3:0}, arg={0:0}, arg={0:0}, t=0, x=1] [L695] 5 x = t + 1 VAL [a={3:0}, arg={0:0}, arg={0:0}, t=0, x=2] [L693] 1 int t = x; VAL [a={3:0}, arg={0:0}, arg={0:0}, t=2, x=2] [L694] 1 a[t] = 1 VAL [a={3:0}, arg={0:0}, arg={0:0}, t=2, x=2] [L695] 1 x = t + 1 VAL [a={3:0}, arg={0:0}, arg={0:0}, t=2, x=3] [L693] 2 int t = x; VAL [a={3:0}, arg={0:0}, arg={0:0}, t=2, x=3] [L694] 2 a[t] = 1 VAL [a={3:0}, arg={0:0}, arg={0:0}, t=2, x=3] [L695] 2 x = t + 1 VAL [a={3:0}, arg={0:0}, arg={0:0}, t=2, x=4] [L693] 3 int t = x; VAL [a={3:0}, arg={0:0}, arg={0:0}, t=4, x=4] [L694] 3 a[t] = 1 VAL [a={3:0}, arg={0:0}, arg={0:0}, t=4, x=4] [L695] 3 x = t + 1 VAL [a={3:0}, arg={0:0}, arg={0:0}, t=4, x=5] [L706] FCALL, JOIN 1 pthread_join(t[i], ((void *)0)) VAL [\old(argc)=50, a={3:0}, arg={0:0}, arg={0:0}, argc=50, argv={49:51}, argv={49:51}, i=0, n=5, t=4, t={6:0}, t[i]=-1, x=5] [L705] 0 i++ VAL [\old(argc)=50, a={3:0}, arg={0:0}, arg={0:0}, argc=50, argv={49:51}, argv={49:51}, i=1, n=5, t={6:0}, t=4, x=5] [L705] COND TRUE 0 i < n VAL [\old(argc)=50, a={3:0}, arg={0:0}, arg={0:0}, argc=50, argv={49:51}, argv={49:51}, i=1, n=5, t=4, t={6:0}, x=5] [L706] 0 t[i] VAL [\old(argc)=50, a={3:0}, arg={0:0}, arg={0:0}, argc=50, argv={49:51}, argv={49:51}, i=1, n=5, t=4, t={6:0}, t[i]=0, x=5] [L706] FCALL, JOIN 2 pthread_join(t[i], ((void *)0)) VAL [\old(argc)=50, a={3:0}, arg={0:0}, arg={0:0}, argc=50, argv={49:51}, argv={49:51}, i=1, n=5, t={6:0}, t=4, t[i]=0, x=5] [L705] 0 i++ VAL [\old(argc)=50, a={3:0}, arg={0:0}, arg={0:0}, argc=50, argv={49:51}, argv={49:51}, i=2, n=5, t=4, t={6:0}, x=5] [L705] COND TRUE 0 i < n VAL [\old(argc)=50, a={3:0}, arg={0:0}, arg={0:0}, argc=50, argv={49:51}, argv={49:51}, i=2, n=5, t=4, t={6:0}, x=5] [L706] 0 t[i] VAL [\old(argc)=50, a={3:0}, arg={0:0}, arg={0:0}, argc=50, argv={49:51}, argv={49:51}, i=2, n=5, t={6:0}, t=4, t[i]=1, x=5] [L706] FCALL, JOIN 3 pthread_join(t[i], ((void *)0)) VAL [\old(argc)=50, a={3:0}, arg={0:0}, arg={0:0}, argc=50, argv={49:51}, argv={49:51}, i=2, n=5, t=4, t={6:0}, t[i]=1, x=5] [L705] 0 i++ VAL [\old(argc)=50, a={3:0}, arg={0:0}, arg={0:0}, argc=50, argv={49:51}, argv={49:51}, i=3, n=5, t=4, t={6:0}, x=5] [L705] COND TRUE 0 i < n VAL [\old(argc)=50, a={3:0}, arg={0:0}, arg={0:0}, argc=50, argv={49:51}, argv={49:51}, i=3, n=5, t=4, t={6:0}, x=5] [L706] 0 t[i] VAL [\old(argc)=50, a={3:0}, arg={0:0}, arg={0:0}, argc=50, argv={49:51}, argv={49:51}, i=3, n=5, t={6:0}, t=4, t[i]=2, x=5] [L706] FCALL, JOIN 4 pthread_join(t[i], ((void *)0)) VAL [\old(argc)=50, a={3:0}, arg={0:0}, arg={0:0}, argc=50, argv={49:51}, argv={49:51}, i=3, n=5, t=4, t={6:0}, t[i]=2, x=5] [L705] 0 i++ VAL [\old(argc)=50, a={3:0}, arg={0:0}, arg={0:0}, argc=50, argv={49:51}, argv={49:51}, i=4, n=5, t=4, t={6:0}, x=5] [L705] COND TRUE 0 i < n VAL [\old(argc)=50, a={3:0}, arg={0:0}, arg={0:0}, argc=50, argv={49:51}, argv={49:51}, i=4, n=5, t={6:0}, t=4, x=5] [L706] 0 t[i] VAL [\old(argc)=50, a={3:0}, arg={0:0}, arg={0:0}, argc=50, argv={49:51}, argv={49:51}, i=4, n=5, t={6:0}, t=4, t[i]=3, x=5] [L706] FCALL, JOIN 5 pthread_join(t[i], ((void *)0)) VAL [\old(argc)=50, a={3:0}, arg={0:0}, arg={0:0}, argc=50, argv={49:51}, argv={49:51}, i=4, n=5, t=4, t={6:0}, t[i]=3, x=5] [L705] 0 i++ VAL [\old(argc)=50, a={3:0}, arg={0:0}, arg={0:0}, argc=50, argv={49:51}, argv={49:51}, i=5, n=5, t=4, t={6:0}, x=5] [L705] COND FALSE 0 !(i < n) VAL [\old(argc)=50, a={3:0}, arg={0:0}, arg={0:0}, argc=50, argv={49:51}, argv={49:51}, i=5, n=5, t=4, t={6:0}, x=5] [L708] 0 int sum = 0; VAL [\old(argc)=50, a={3:0}, arg={0:0}, arg={0:0}, argc=50, argv={49:51}, argv={49:51}, i=5, n=5, sum=0, t={6:0}, t=4, x=5] [L709] 0 i = 0 VAL [\old(argc)=50, a={3:0}, arg={0:0}, arg={0:0}, argc=50, argv={49:51}, argv={49:51}, i=0, n=5, sum=0, t={6:0}, t=4, x=5] [L709] COND TRUE 0 i < n VAL [\old(argc)=50, a={3:0}, arg={0:0}, arg={0:0}, argc=50, argv={49:51}, argv={49:51}, i=0, n=5, sum=0, t=4, t={6:0}, x=5] [L710] EXPR 0 a[i] VAL [\old(argc)=50, a={3:0}, a[i]=1, arg={0:0}, arg={0:0}, argc=50, argv={49:51}, argv={49:51}, i=0, n=5, sum=0, t=4, t={6:0}, x=5] [L710] 0 sum += a[i] VAL [\old(argc)=50, a={3:0}, a[i]=1, arg={0:0}, arg={0:0}, argc=50, argv={49:51}, argv={49:51}, i=0, n=5, sum=1, t={6:0}, t=4, x=5] [L709] 0 i++ VAL [\old(argc)=50, a={3:0}, arg={0:0}, arg={0:0}, argc=50, argv={49:51}, argv={49:51}, i=1, n=5, sum=1, t=4, t={6:0}, x=5] [L709] COND TRUE 0 i < n VAL [\old(argc)=50, a={3:0}, arg={0:0}, arg={0:0}, argc=50, argv={49:51}, argv={49:51}, i=1, n=5, sum=1, t=4, t={6:0}, x=5] [L710] EXPR 0 a[i] VAL [\old(argc)=50, a={3:0}, a[i]=1, arg={0:0}, arg={0:0}, argc=50, argv={49:51}, argv={49:51}, i=1, n=5, sum=1, t={6:0}, t=4, x=5] [L710] 0 sum += a[i] VAL [\old(argc)=50, a={3:0}, a[i]=1, arg={0:0}, arg={0:0}, argc=50, argv={49:51}, argv={49:51}, i=1, n=5, sum=2, t={6:0}, t=4, x=5] [L709] 0 i++ VAL [\old(argc)=50, a={3:0}, arg={0:0}, arg={0:0}, argc=50, argv={49:51}, argv={49:51}, i=2, n=5, sum=2, t=4, t={6:0}, x=5] [L709] COND TRUE 0 i < n VAL [\old(argc)=50, a={3:0}, arg={0:0}, arg={0:0}, argc=50, argv={49:51}, argv={49:51}, i=2, n=5, sum=2, t=4, t={6:0}, x=5] [L710] EXPR 0 a[i] VAL [\old(argc)=50, a={3:0}, a[i]=1, arg={0:0}, arg={0:0}, argc=50, argv={49:51}, argv={49:51}, i=2, n=5, sum=2, t=4, t={6:0}, x=5] [L710] 0 sum += a[i] VAL [\old(argc)=50, a={3:0}, a[i]=1, arg={0:0}, arg={0:0}, argc=50, argv={49:51}, argv={49:51}, i=2, n=5, sum=3, t={6:0}, t=4, x=5] [L709] 0 i++ VAL [\old(argc)=50, a={3:0}, arg={0:0}, arg={0:0}, argc=50, argv={49:51}, argv={49:51}, i=3, n=5, sum=3, t={6:0}, t=4, x=5] [L709] COND TRUE 0 i < n VAL [\old(argc)=50, a={3:0}, arg={0:0}, arg={0:0}, argc=50, argv={49:51}, argv={49:51}, i=3, n=5, sum=3, t={6:0}, t=4, x=5] [L710] EXPR 0 a[i] VAL [\old(argc)=50, a={3:0}, a[i]=1, arg={0:0}, arg={0:0}, argc=50, argv={49:51}, argv={49:51}, i=3, n=5, sum=3, t=4, t={6:0}, x=5] [L710] 0 sum += a[i] VAL [\old(argc)=50, a={3:0}, a[i]=1, arg={0:0}, arg={0:0}, argc=50, argv={49:51}, argv={49:51}, i=3, n=5, sum=4, t=4, t={6:0}, x=5] [L709] 0 i++ VAL [\old(argc)=50, a={3:0}, arg={0:0}, arg={0:0}, argc=50, argv={49:51}, argv={49:51}, i=4, n=5, sum=4, t={6:0}, t=4, x=5] [L709] COND TRUE 0 i < n VAL [\old(argc)=50, a={3:0}, arg={0:0}, arg={0:0}, argc=50, argv={49:51}, argv={49:51}, i=4, n=5, sum=4, t=4, t={6:0}, x=5] [L710] EXPR 0 a[i] VAL [\old(argc)=50, a={3:0}, a[i]=1, arg={0:0}, arg={0:0}, argc=50, argv={49:51}, argv={49:51}, i=4, n=5, sum=4, t={6:0}, t=4, x=5] [L710] 0 sum += a[i] VAL [\old(argc)=50, a={3:0}, a[i]=1, arg={0:0}, arg={0:0}, argc=50, argv={49:51}, argv={49:51}, i=4, n=5, sum=5, t=4, t={6:0}, x=5] [L709] 0 i++ VAL [\old(argc)=50, a={3:0}, arg={0:0}, arg={0:0}, argc=50, argv={49:51}, argv={49:51}, i=5, n=5, sum=5, t=4, t={6:0}, x=5] [L709] COND FALSE 0 !(i < n) VAL [\old(argc)=50, a={3:0}, arg={0:0}, arg={0:0}, argc=50, argv={49:51}, argv={49:51}, i=5, n=5, sum=5, t={6:0}, t=4, x=5] [L712] CALL 0 __VERIFIER_assert(sum == 10 - 1) [L689] COND TRUE 0 !(cond) VAL [\old(cond)=0, a={3:0}, arg={0:0}, arg={0:0}, cond=0, t=4, x=5] [L689] 0 reach_error() VAL [\old(cond)=0, a={3:0}, arg={0:0}, arg={0:0}, cond=0, t=4, x=5] - UnprovableResult [Line: 703]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 88 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 2.1s, OverallIterations: 4, TraceHistogramMax: 0, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.4s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=301occurred in iteration=0, InterpolantAutomatonStates: 17, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 277 NumberOfCodeBlocks, 277 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 298 ConstructedInterpolants, 0 QuantifiedInterpolants, 652 SizeOfPredicates, 6 NumberOfNonLiveVariables, 155 ConjunctsInSsa, 9 ConjunctsInUnsatCore, 5 InterpolantComputations, 2 PerfectInterpolantSequences, 6/9 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - StatisticsResult: Ultimate Automizer benchmark data with 2 thread instances CFG has 4 procedures, 94 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 1.4s, OverallIterations: 4, TraceHistogramMax: 0, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, PartialOrderReductionTime: 0.5s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1951occurred in iteration=0, InterpolantAutomatonStates: 20, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 287 NumberOfCodeBlocks, 287 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 298 ConstructedInterpolants, 0 QuantifiedInterpolants, 652 SizeOfPredicates, 6 NumberOfNonLiveVariables, 155 ConjunctsInSsa, 9 ConjunctsInUnsatCore, 5 InterpolantComputations, 2 PerfectInterpolantSequences, 6/9 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - StatisticsResult: Ultimate Automizer benchmark data with 3 thread instances CFG has 5 procedures, 100 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 8.7s, OverallIterations: 7, TraceHistogramMax: 0, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.3s, PartialOrderReductionTime: 4.5s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=13195occurred in iteration=0, InterpolantAutomatonStates: 81, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.3s InterpolantComputationTime, 993 NumberOfCodeBlocks, 993 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 1333 ConstructedInterpolants, 0 QuantifiedInterpolants, 3487 SizeOfPredicates, 36 NumberOfNonLiveVariables, 896 ConjunctsInSsa, 42 ConjunctsInUnsatCore, 14 InterpolantComputations, 2 PerfectInterpolantSequences, 259/513 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - StatisticsResult: Ultimate Automizer benchmark data with 4 thread instances CFG has 6 procedures, 106 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 11.0s, OverallIterations: 7, TraceHistogramMax: 0, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.2s, PartialOrderReductionTime: 5.1s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=90067occurred in iteration=0, InterpolantAutomatonStates: 84, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.2s InterpolantComputationTime, 1003 NumberOfCodeBlocks, 1003 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 1333 ConstructedInterpolants, 0 QuantifiedInterpolants, 3487 SizeOfPredicates, 36 NumberOfNonLiveVariables, 896 ConjunctsInSsa, 42 ConjunctsInUnsatCore, 14 InterpolantComputations, 2 PerfectInterpolantSequences, 259/513 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - StatisticsResult: Ultimate Automizer benchmark data with 5 thread instances CFG has 7 procedures, 112 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 41.6s, OverallIterations: 9, TraceHistogramMax: 0, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 21.0s, PartialOrderReductionTime: 14.6s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=617155occurred in iteration=0, InterpolantAutomatonStates: 158, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 3.7s InterpolantComputationTime, 1783 NumberOfCodeBlocks, 1783 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 2329 ConstructedInterpolants, 0 QuantifiedInterpolants, 6553 SizeOfPredicates, 72 NumberOfNonLiveVariables, 1596 ConjunctsInSsa, 78 ConjunctsInUnsatCore, 20 InterpolantComputations, 2 PerfectInterpolantSequences, 854/1545 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-02-16 17:00:59,805 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (16)] Forceful destruction successful, exit code 0 [2022-02-16 17:01:00,017 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (11)] Forceful destruction successful, exit code 0 [2022-02-16 17:01:00,219 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (6)] Forceful destruction successful, exit code 0 [2022-02-16 17:01:00,435 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (4)] Forceful destruction successful, exit code 0 [2022-02-16 17:01:00,632 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Forceful destruction successful, exit code 0 [2022-02-16 17:01:00,842 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...