/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-POR-NewStatesSleepPersistentFixedOrder-NoLbe-Lockstep.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-divine/condvar.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-9e34d99ae2c6837f487980c721c4b6acf9d9b15c-9e34d99 [2021-07-10 12:49:31,086 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-07-10 12:49:31,088 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-07-10 12:49:31,121 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-07-10 12:49:31,138 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-07-10 12:49:31,139 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-07-10 12:49:31,141 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-07-10 12:49:31,142 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-07-10 12:49:31,144 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-07-10 12:49:31,144 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-07-10 12:49:31,146 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-07-10 12:49:31,150 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-07-10 12:49:31,151 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-07-10 12:49:31,152 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-07-10 12:49:31,153 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-07-10 12:49:31,155 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-07-10 12:49:31,160 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-07-10 12:49:31,162 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-07-10 12:49:31,163 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-07-10 12:49:31,164 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-07-10 12:49:31,164 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-07-10 12:49:31,165 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-07-10 12:49:31,165 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-07-10 12:49:31,165 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-07-10 12:49:31,166 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-07-10 12:49:31,166 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-07-10 12:49:31,166 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-07-10 12:49:31,167 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-07-10 12:49:31,170 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-NewStatesSleepPersistentFixedOrder-NoLbe-Lockstep.epf [2021-07-10 12:49:31,199 INFO L113 SettingsManager]: Loading preferences was successful [2021-07-10 12:49:31,199 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-07-10 12:49:31,199 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-07-10 12:49:31,199 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-07-10 12:49:31,201 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-07-10 12:49:31,201 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-07-10 12:49:31,201 INFO L138 SettingsManager]: * Use SBE=true [2021-07-10 12:49:31,202 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-07-10 12:49:31,202 INFO L138 SettingsManager]: * sizeof long=4 [2021-07-10 12:49:31,202 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-07-10 12:49:31,202 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-07-10 12:49:31,203 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-07-10 12:49:31,203 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-07-10 12:49:31,203 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-07-10 12:49:31,203 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-07-10 12:49:31,203 INFO L138 SettingsManager]: * sizeof long double=12 [2021-07-10 12:49:31,203 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-07-10 12:49:31,203 INFO L138 SettingsManager]: * Use constant arrays=true [2021-07-10 12:49:31,203 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-07-10 12:49:31,203 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-07-10 12:49:31,203 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-07-10 12:49:31,203 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-07-10 12:49:31,204 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-07-10 12:49:31,204 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-10 12:49:31,204 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-07-10 12:49:31,204 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-07-10 12:49:31,204 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-07-10 12:49:31,204 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-07-10 12:49:31,204 INFO L138 SettingsManager]: * DFS Order used in POR=PSEUDO_LOCKSTEP [2021-07-10 12:49:31,204 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-07-10 12:49:31,204 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-07-10 12:49:31,204 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-07-10 12:49:31,205 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-07-10 12:49:31,205 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2021-07-10 12:49:31,205 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-07-10 12:49:31,518 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-07-10 12:49:31,539 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-07-10 12:49:31,541 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-07-10 12:49:31,542 INFO L271 PluginConnector]: Initializing CDTParser... [2021-07-10 12:49:31,546 INFO L275 PluginConnector]: CDTParser initialized [2021-07-10 12:49:31,547 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-divine/condvar.i [2021-07-10 12:49:31,607 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1ba3ef53d/e8c47b83b2d24ea0939a0981b99a2ed2/FLAG892a737c9 [2021-07-10 12:49:32,013 INFO L306 CDTParser]: Found 1 translation units. [2021-07-10 12:49:32,014 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-divine/condvar.i [2021-07-10 12:49:32,021 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1ba3ef53d/e8c47b83b2d24ea0939a0981b99a2ed2/FLAG892a737c9 [2021-07-10 12:49:32,336 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1ba3ef53d/e8c47b83b2d24ea0939a0981b99a2ed2 [2021-07-10 12:49:32,337 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-07-10 12:49:32,339 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-07-10 12:49:32,342 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-07-10 12:49:32,343 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-07-10 12:49:32,345 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-07-10 12:49:32,346 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.07 12:49:32" (1/1) ... [2021-07-10 12:49:32,346 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@793e3871 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 12:49:32, skipping insertion in model container [2021-07-10 12:49:32,346 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.07 12:49:32" (1/1) ... [2021-07-10 12:49:32,351 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-07-10 12:49:32,378 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-07-10 12:49:32,455 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2021-07-10 12:49:32,582 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-divine/condvar.i[30458,30471] [2021-07-10 12:49:32,587 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-10 12:49:32,596 INFO L203 MainTranslator]: Completed pre-run [2021-07-10 12:49:32,603 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2021-07-10 12:49:32,616 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-divine/condvar.i[30458,30471] [2021-07-10 12:49:32,622 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-10 12:49:32,647 INFO L208 MainTranslator]: Completed translation [2021-07-10 12:49:32,647 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 12:49:32 WrapperNode [2021-07-10 12:49:32,647 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-07-10 12:49:32,648 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-07-10 12:49:32,648 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-07-10 12:49:32,648 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-07-10 12:49:32,653 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 12:49:32" (1/1) ... [2021-07-10 12:49:32,661 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 12:49:32" (1/1) ... [2021-07-10 12:49:32,685 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-07-10 12:49:32,686 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-07-10 12:49:32,686 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-07-10 12:49:32,686 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-07-10 12:49:32,691 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 12:49:32" (1/1) ... [2021-07-10 12:49:32,691 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 12:49:32" (1/1) ... [2021-07-10 12:49:32,693 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 12:49:32" (1/1) ... [2021-07-10 12:49:32,693 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 12:49:32" (1/1) ... [2021-07-10 12:49:32,696 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 12:49:32" (1/1) ... [2021-07-10 12:49:32,698 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 12:49:32" (1/1) ... [2021-07-10 12:49:32,700 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 12:49:32" (1/1) ... [2021-07-10 12:49:32,701 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-07-10 12:49:32,702 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-07-10 12:49:32,702 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-07-10 12:49:32,702 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-07-10 12:49:32,702 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 12:49:32" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-10 12:49:32,768 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-07-10 12:49:32,768 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-07-10 12:49:32,768 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-07-10 12:49:32,768 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-07-10 12:49:32,768 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-07-10 12:49:32,769 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-07-10 12:49:32,769 INFO L130 BoogieDeclarations]: Found specification of procedure thread [2021-07-10 12:49:32,769 INFO L138 BoogieDeclarations]: Found implementation of procedure thread [2021-07-10 12:49:32,769 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-07-10 12:49:32,770 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-07-10 12:49:32,771 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-07-10 12:49:33,000 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-07-10 12:49:33,001 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2021-07-10 12:49:33,002 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.07 12:49:33 BoogieIcfgContainer [2021-07-10 12:49:33,002 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-07-10 12:49:33,003 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-07-10 12:49:33,003 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-07-10 12:49:33,005 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-07-10 12:49:33,005 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.07 12:49:32" (1/3) ... [2021-07-10 12:49:33,006 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77406f08 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.07 12:49:33, skipping insertion in model container [2021-07-10 12:49:33,006 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 12:49:32" (2/3) ... [2021-07-10 12:49:33,006 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77406f08 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.07 12:49:33, skipping insertion in model container [2021-07-10 12:49:33,006 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.07 12:49:33" (3/3) ... [2021-07-10 12:49:33,007 INFO L111 eAbstractionObserver]: Analyzing ICFG condvar.i [2021-07-10 12:49:33,011 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-07-10 12:49:33,011 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-07-10 12:49:33,011 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-07-10 12:49:33,012 INFO L474 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-07-10 12:49:33,033 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-10 12:49:33,033 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-10 12:49:33,033 WARN L313 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-10 12:49:33,033 WARN L313 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-10 12:49:33,034 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-10 12:49:33,034 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-10 12:49:33,034 WARN L313 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-10 12:49:33,034 WARN L313 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-10 12:49:33,034 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-10 12:49:33,034 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-10 12:49:33,035 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-10 12:49:33,035 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-10 12:49:33,036 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-10 12:49:33,036 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-10 12:49:33,036 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-10 12:49:33,036 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-10 12:49:33,036 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-10 12:49:33,036 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-10 12:49:33,037 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-10 12:49:33,037 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-10 12:49:33,038 WARN L313 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-10 12:49:33,039 WARN L313 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-10 12:49:33,039 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-10 12:49:33,039 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-10 12:49:33,039 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-10 12:49:33,039 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-10 12:49:33,055 INFO L149 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2021-07-10 12:49:33,071 INFO L255 AbstractCegarLoop]: Starting to check reachability of 1 error locations. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-07-10 12:49:33,214 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-07-10 12:49:33,215 INFO L379 AbstractCegarLoop]: Hoare is false [2021-07-10 12:49:33,215 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-07-10 12:49:33,215 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-10 12:49:33,215 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-10 12:49:33,215 INFO L383 AbstractCegarLoop]: Difference is false [2021-07-10 12:49:33,216 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-10 12:49:33,216 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == threadThread1of1ForFork0======== [2021-07-10 12:49:33,307 INFO L430 AbstractCegarLoop]: === Iteration 1 === [threadErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-10 12:49:33,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 12:49:33,311 INFO L82 PathProgramCache]: Analyzing trace with hash 1447503844, now seen corresponding path program 1 times [2021-07-10 12:49:33,316 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 12:49:33,316 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1180562109] [2021-07-10 12:49:33,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 12:49:33,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 12:49:33,459 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 12:49:33,460 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 12:49:33,460 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1180562109] [2021-07-10 12:49:33,460 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1180562109] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-10 12:49:33,460 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-10 12:49:33,460 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-07-10 12:49:33,461 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1201726108] [2021-07-10 12:49:33,463 INFO L462 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-07-10 12:49:33,464 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 12:49:33,471 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-07-10 12:49:33,472 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-07-10 12:49:33,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 12:49:33,473 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-10 12:49:33,475 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 2 states, 2 states have (on average 23.5) internal successors, (47), 2 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-10 12:49:33,475 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 12:49:33,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 12:49:33,481 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-07-10 12:49:33,481 INFO L430 AbstractCegarLoop]: === Iteration 2 === [threadErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-10 12:49:33,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 12:49:33,481 INFO L82 PathProgramCache]: Analyzing trace with hash 1447534596, now seen corresponding path program 1 times [2021-07-10 12:49:33,481 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 12:49:33,482 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [728014039] [2021-07-10 12:49:33,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 12:49:33,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 12:49:33,544 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 12:49:33,545 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 12:49:33,545 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [728014039] [2021-07-10 12:49:33,545 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [728014039] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-10 12:49:33,545 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-10 12:49:33,545 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-07-10 12:49:33,546 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2010875532] [2021-07-10 12:49:33,546 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-07-10 12:49:33,547 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 12:49:33,547 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-07-10 12:49:33,547 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-10 12:49:33,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 12:49:33,548 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-10 12:49:33,548 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-10 12:49:33,548 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 12:49:33,548 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 12:49:33,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 12:49:33,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-10 12:49:33,564 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-07-10 12:49:33,564 INFO L430 AbstractCegarLoop]: === Iteration 3 === [threadErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-10 12:49:33,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 12:49:33,565 INFO L82 PathProgramCache]: Analyzing trace with hash 1447535557, now seen corresponding path program 1 times [2021-07-10 12:49:33,565 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 12:49:33,565 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [427901159] [2021-07-10 12:49:33,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 12:49:33,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 12:49:33,607 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 12:49:33,607 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 12:49:33,607 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [427901159] [2021-07-10 12:49:33,607 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [427901159] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-10 12:49:33,607 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-10 12:49:33,607 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-07-10 12:49:33,607 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [268733432] [2021-07-10 12:49:33,608 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-07-10 12:49:33,608 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 12:49:33,608 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-07-10 12:49:33,608 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-10 12:49:33,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 12:49:33,609 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-10 12:49:33,609 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-10 12:49:33,609 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 12:49:33,609 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-10 12:49:33,609 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 12:49:33,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 12:49:33,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-10 12:49:33,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-10 12:49:33,637 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-07-10 12:49:33,637 INFO L430 AbstractCegarLoop]: === Iteration 4 === [threadErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-10 12:49:33,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 12:49:33,637 INFO L82 PathProgramCache]: Analyzing trace with hash -515733794, now seen corresponding path program 1 times [2021-07-10 12:49:33,637 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 12:49:33,637 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [34006241] [2021-07-10 12:49:33,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 12:49:33,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 12:49:33,687 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 12:49:33,688 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 12:49:33,688 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [34006241] [2021-07-10 12:49:33,688 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [34006241] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 12:49:33,688 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1221619622] [2021-07-10 12:49:33,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 12:49:33,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 12:49:33,760 INFO L263 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 4 conjunts are in the unsatisfiable core [2021-07-10 12:49:33,764 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-10 12:49:33,983 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 12:49:33,983 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1221619622] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 12:49:33,983 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-10 12:49:33,984 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2021-07-10 12:49:33,984 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [676062478] [2021-07-10 12:49:33,986 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-07-10 12:49:33,987 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 12:49:33,989 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-07-10 12:49:33,989 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-07-10 12:49:33,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 12:49:33,990 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-10 12:49:33,990 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 7 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-10 12:49:33,990 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 12:49:33,990 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-10 12:49:33,990 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-10 12:49:33,990 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 12:49:34,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 12:49:34,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-10 12:49:34,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-10 12:49:34,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-10 12:49:34,255 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 12:49:34,255 INFO L430 AbstractCegarLoop]: === Iteration 5 === [threadErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-10 12:49:34,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 12:49:34,256 INFO L82 PathProgramCache]: Analyzing trace with hash 290269905, now seen corresponding path program 2 times [2021-07-10 12:49:34,256 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 12:49:34,256 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2056909976] [2021-07-10 12:49:34,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 12:49:34,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 12:49:34,322 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 5 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 12:49:34,322 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 12:49:34,322 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2056909976] [2021-07-10 12:49:34,322 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2056909976] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 12:49:34,322 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [887550649] [2021-07-10 12:49:34,322 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 12:49:34,396 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-07-10 12:49:34,396 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-10 12:49:34,397 INFO L263 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 6 conjunts are in the unsatisfiable core [2021-07-10 12:49:34,399 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-10 12:49:34,522 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 5 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 12:49:34,523 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [887550649] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 12:49:34,523 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-10 12:49:34,523 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2021-07-10 12:49:34,523 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1947385251] [2021-07-10 12:49:34,523 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-07-10 12:49:34,523 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 12:49:34,524 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-07-10 12:49:34,524 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2021-07-10 12:49:34,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 12:49:34,524 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-10 12:49:34,524 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 8.88888888888889) internal successors, (80), 9 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-10 12:49:34,524 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 12:49:34,524 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-10 12:49:34,524 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-10 12:49:34,524 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-10 12:49:34,524 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 12:49:34,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 12:49:34,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-10 12:49:34,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-10 12:49:34,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-10 12:49:34,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-10 12:49:34,815 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 12:49:34,816 INFO L430 AbstractCegarLoop]: === Iteration 6 === [threadErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-10 12:49:34,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 12:49:34,816 INFO L82 PathProgramCache]: Analyzing trace with hash 2023122979, now seen corresponding path program 3 times [2021-07-10 12:49:34,816 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 12:49:34,816 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [369104045] [2021-07-10 12:49:34,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 12:49:34,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 12:49:34,911 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 20 proven. 42 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-07-10 12:49:34,911 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 12:49:34,911 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [369104045] [2021-07-10 12:49:34,911 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [369104045] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 12:49:34,911 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [246865626] [2021-07-10 12:49:34,911 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 12:49:35,016 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2021-07-10 12:49:35,016 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-10 12:49:35,018 INFO L263 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 7 conjunts are in the unsatisfiable core [2021-07-10 12:49:35,019 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-10 12:49:35,243 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 38 proven. 7 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-07-10 12:49:35,244 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [246865626] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 12:49:35,244 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-10 12:49:35,244 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 7] total 14 [2021-07-10 12:49:35,244 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1043798224] [2021-07-10 12:49:35,244 INFO L462 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-07-10 12:49:35,245 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 12:49:35,245 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-07-10 12:49:35,245 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2021-07-10 12:49:35,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 12:49:35,245 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-10 12:49:35,245 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 14 states, 14 states have (on average 8.071428571428571) internal successors, (113), 14 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-10 12:49:35,245 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 12:49:35,246 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-10 12:49:35,246 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-10 12:49:35,246 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-10 12:49:35,246 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-10 12:49:35,246 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 12:49:35,735 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 12:49:35,736 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.IllegalStateException: Guarantee of compatibility failed at de.uni_freiburg.informatik.ultimate.automata.partialorder.PersistentSetReduction$CompliantDfsOrder.lambda$0(PersistentSetReduction.java:137) at java.base/java.util.TimSort.countRunAndMakeAscending(TimSort.java:355) at java.base/java.util.TimSort.sort(TimSort.java:220) at java.base/java.util.Arrays.sort(Arrays.java:1515) at java.base/java.util.ArrayList.sort(ArrayList.java:1750) at de.uni_freiburg.informatik.ultimate.automata.partialorder.SleepSetNewStateReduction.search(SleepSetNewStateReduction.java:147) at de.uni_freiburg.informatik.ultimate.automata.partialorder.SleepSetNewStateReduction.(SleepSetNewStateReduction.java:111) at de.uni_freiburg.informatik.ultimate.automata.partialorder.PersistentSetReduction.applyNewStateReduction(PersistentSetReduction.java:67) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.concurrency.PartialOrderReductionFacade.apply(PartialOrderReductionFacade.java:182) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.concurrency.PartialOrderCegarLoop.isAbstractionEmpty(PartialOrderCegarLoop.java:193) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:509) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:374) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:69) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:63) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:367) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:293) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:238) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:167) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-07-10 12:49:35,739 INFO L168 Benchmark]: Toolchain (without parser) took 3400.34 ms. Allocated memory was 188.7 MB in the beginning and 253.8 MB in the end (delta: 65.0 MB). Free memory was 150.5 MB in the beginning and 226.8 MB in the end (delta: -76.3 MB). There was no memory consumed. Max. memory is 8.0 GB. [2021-07-10 12:49:35,739 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 188.7 MB. Free memory is still 168.8 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-07-10 12:49:35,739 INFO L168 Benchmark]: CACSL2BoogieTranslator took 305.12 ms. Allocated memory is still 188.7 MB. Free memory was 150.0 MB in the beginning and 162.5 MB in the end (delta: -12.5 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. [2021-07-10 12:49:35,739 INFO L168 Benchmark]: Boogie Procedure Inliner took 37.33 ms. Allocated memory is still 188.7 MB. Free memory was 161.9 MB in the beginning and 160.4 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-07-10 12:49:35,740 INFO L168 Benchmark]: Boogie Preprocessor took 15.31 ms. Allocated memory is still 188.7 MB. Free memory was 160.4 MB in the beginning and 158.8 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-07-10 12:49:35,740 INFO L168 Benchmark]: RCFGBuilder took 300.56 ms. Allocated memory is still 188.7 MB. Free memory was 158.8 MB in the beginning and 136.3 MB in the end (delta: 22.5 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. [2021-07-10 12:49:35,740 INFO L168 Benchmark]: TraceAbstraction took 2735.25 ms. Allocated memory was 188.7 MB in the beginning and 253.8 MB in the end (delta: 65.0 MB). Free memory was 135.7 MB in the beginning and 226.8 MB in the end (delta: -91.1 MB). There was no memory consumed. Max. memory is 8.0 GB. [2021-07-10 12:49:35,741 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 188.7 MB. Free memory is still 168.8 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 305.12 ms. Allocated memory is still 188.7 MB. Free memory was 150.0 MB in the beginning and 162.5 MB in the end (delta: -12.5 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 37.33 ms. Allocated memory is still 188.7 MB. Free memory was 161.9 MB in the beginning and 160.4 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 15.31 ms. Allocated memory is still 188.7 MB. Free memory was 160.4 MB in the beginning and 158.8 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 300.56 ms. Allocated memory is still 188.7 MB. Free memory was 158.8 MB in the beginning and 136.3 MB in the end (delta: 22.5 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. * TraceAbstraction took 2735.25 ms. Allocated memory was 188.7 MB in the beginning and 253.8 MB in the end (delta: 65.0 MB). Free memory was 135.7 MB in the beginning and 226.8 MB in the end (delta: -91.1 MB). There was no memory consumed. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: IllegalStateException: Guarantee of compatibility failed de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: IllegalStateException: Guarantee of compatibility failed: de.uni_freiburg.informatik.ultimate.automata.partialorder.PersistentSetReduction$CompliantDfsOrder.lambda$0(PersistentSetReduction.java:137) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...