/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-Uncond-NoLbe-Random521.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/ldv-races/race-1_2-join.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-2ce48c3f3f8970e6bfb7f04ced506932607c57fe-2ce48c3 [2021-10-22 18:07:06,786 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-22 18:07:06,787 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-22 18:07:06,839 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-10-22 18:07:06,850 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-22 18:07:06,851 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-22 18:07:06,852 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-22 18:07:06,852 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-22 18:07:06,853 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-22 18:07:06,853 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-22 18:07:06,854 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-22 18:07:06,855 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-22 18:07:06,856 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-22 18:07:06,872 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-22 18:07:06,872 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-22 18:07:06,873 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-22 18:07:06,874 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-22 18:07:06,874 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-22 18:07:06,875 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-22 18:07:06,875 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-22 18:07:06,875 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-22 18:07:06,876 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... 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[2021-10-22 18:07:06,879 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-22 18:07:06,879 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-22 18:07:06,880 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-22 18:07:06,880 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-Uncond-NoLbe-Random521.epf [2021-10-22 18:07:06,897 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-22 18:07:06,897 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-22 18:07:06,898 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-22 18:07:06,898 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-22 18:07:06,899 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-22 18:07:06,899 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-22 18:07:06,899 INFO L138 SettingsManager]: * Use SBE=true [2021-10-22 18:07:06,899 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-22 18:07:06,899 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-22 18:07:06,899 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-22 18:07:06,900 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-22 18:07:06,900 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-22 18:07:06,900 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-22 18:07:06,900 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-22 18:07:06,900 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-22 18:07:06,900 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-22 18:07:06,900 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-22 18:07:06,901 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-22 18:07:06,901 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-22 18:07:06,901 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-22 18:07:06,901 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-22 18:07:06,901 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-10-22 18:07:06,901 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-22 18:07:06,901 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-22 18:07:06,902 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-22 18:07:06,902 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-22 18:07:06,902 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-22 18:07:06,902 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-22 18:07:06,903 INFO L138 SettingsManager]: * DFS Order used in POR=RANDOM [2021-10-22 18:07:06,903 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-22 18:07:06,903 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-22 18:07:06,903 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-10-22 18:07:06,903 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-22 18:07:06,903 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2021-10-22 18:07:06,903 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2021-10-22 18:07:06,903 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-22 18:07:06,903 INFO L138 SettingsManager]: * Random seed used by POR DFS order=521 [2021-10-22 18:07:06,903 INFO L138 SettingsManager]: * Use conditional POR in concurrent analysis=false 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-10-22 18:07:07,083 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-22 18:07:07,106 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-22 18:07:07,108 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-22 18:07:07,108 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-22 18:07:07,109 INFO L275 PluginConnector]: CDTParser initialized [2021-10-22 18:07:07,109 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-races/race-1_2-join.i [2021-10-22 18:07:07,166 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ecc1c6b91/d4e5413a82d8482aa1c57ffe93de8f70/FLAGd7de84b1b [2021-10-22 18:07:07,645 INFO L306 CDTParser]: Found 1 translation units. [2021-10-22 18:07:07,645 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-1_2-join.i [2021-10-22 18:07:07,670 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ecc1c6b91/d4e5413a82d8482aa1c57ffe93de8f70/FLAGd7de84b1b [2021-10-22 18:07:07,949 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ecc1c6b91/d4e5413a82d8482aa1c57ffe93de8f70 [2021-10-22 18:07:07,952 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-22 18:07:07,953 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-10-22 18:07:07,954 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-22 18:07:07,954 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-22 18:07:07,960 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-22 18:07:07,960 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 06:07:07" (1/1) ... [2021-10-22 18:07:07,961 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@67ac4a33 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 06:07:07, skipping insertion in model container [2021-10-22 18:07:07,961 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 06:07:07" (1/1) ... [2021-10-22 18:07:07,976 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-22 18:07:08,024 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-22 18:07:08,452 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-1_2-join.i[76153,76166] [2021-10-22 18:07:08,469 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-22 18:07:08,475 INFO L203 MainTranslator]: Completed pre-run [2021-10-22 18:07:08,501 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-1_2-join.i[76153,76166] [2021-10-22 18:07:08,505 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-22 18:07:08,577 INFO L208 MainTranslator]: Completed translation [2021-10-22 18:07:08,577 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 06:07:08 WrapperNode [2021-10-22 18:07:08,577 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-22 18:07:08,578 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-22 18:07:08,578 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-22 18:07:08,578 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-22 18:07:08,583 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 06:07:08" (1/1) ... [2021-10-22 18:07:08,600 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 06:07:08" (1/1) ... [2021-10-22 18:07:08,618 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-22 18:07:08,619 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-22 18:07:08,619 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-22 18:07:08,619 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-22 18:07:08,624 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 06:07:08" (1/1) ... [2021-10-22 18:07:08,624 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 06:07:08" (1/1) ... [2021-10-22 18:07:08,627 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 06:07:08" (1/1) ... [2021-10-22 18:07:08,628 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 06:07:08" (1/1) ... [2021-10-22 18:07:08,634 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 06:07:08" (1/1) ... [2021-10-22 18:07:08,635 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 06:07:08" (1/1) ... [2021-10-22 18:07:08,638 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 06:07:08" (1/1) ... [2021-10-22 18:07:08,641 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-22 18:07:08,642 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-22 18:07:08,642 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-22 18:07:08,642 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-22 18:07:08,643 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 06:07:08" (1/1) ... [2021-10-22 18:07:08,669 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-22 18:07:08,674 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-22 18:07:08,704 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-22 18:07:08,719 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-22 18:07:08,752 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-10-22 18:07:08,752 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-22 18:07:08,752 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-10-22 18:07:08,752 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-22 18:07:08,754 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-10-22 18:07:08,754 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-10-22 18:07:08,756 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-22 18:07:08,756 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-22 18:07:08,757 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-22 18:07:08,757 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-10-22 18:07:08,757 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-10-22 18:07:08,757 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-22 18:07:08,757 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-22 18:07:08,759 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-10-22 18:07:09,338 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-22 18:07:09,338 INFO L299 CfgBuilder]: Removed 16 assume(true) statements. [2021-10-22 18:07:09,340 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 06:07:09 BoogieIcfgContainer [2021-10-22 18:07:09,340 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-22 18:07:09,343 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-22 18:07:09,343 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-22 18:07:09,346 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-22 18:07:09,346 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 06:07:07" (1/3) ... [2021-10-22 18:07:09,347 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61be9b04 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 06:07:09, skipping insertion in model container [2021-10-22 18:07:09,347 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 06:07:08" (2/3) ... [2021-10-22 18:07:09,347 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61be9b04 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 06:07:09, skipping insertion in model container [2021-10-22 18:07:09,347 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 06:07:09" (3/3) ... [2021-10-22 18:07:09,348 INFO L111 eAbstractionObserver]: Analyzing ICFG race-1_2-join.i [2021-10-22 18:07:09,353 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-10-22 18:07:09,353 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-22 18:07:09,353 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2021-10-22 18:07:09,353 INFO L516 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-10-22 18:07:09,380 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-22 18:07:09,380 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-22 18:07:09,380 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-22 18:07:09,380 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-22 18:07:09,381 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-22 18:07:09,381 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-22 18:07:09,382 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-22 18:07:09,382 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-22 18:07:09,382 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-22 18:07:09,382 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-22 18:07:09,385 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-22 18:07:09,385 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-22 18:07:09,386 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-22 18:07:09,386 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-22 18:07:09,386 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-22 18:07:09,387 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-22 18:07:09,390 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-22 18:07:09,390 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-22 18:07:09,390 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-22 18:07:09,391 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-22 18:07:09,391 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-22 18:07:09,398 INFO L148 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2021-10-22 18:07:09,438 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-10-22 18:07:09,438 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-22 18:07:09,447 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2021-10-22 18:07:09,449 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2021-10-22 18:07:09,470 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2021-10-22 18:07:09,476 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, mConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-22 18:07:09,477 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-10-22 18:07:09,520 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-10-22 18:07:09,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-22 18:07:09,524 INFO L82 PathProgramCache]: Analyzing trace with hash 2003271251, now seen corresponding path program 1 times [2021-10-22 18:07:09,530 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-22 18:07:09,530 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [683881019] [2021-10-22 18:07:09,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-22 18:07:09,531 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-22 18:07:09,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-22 18:07:09,849 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-22 18:07:09,850 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-22 18:07:09,850 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [683881019] [2021-10-22 18:07:09,850 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [683881019] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-22 18:07:09,851 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-22 18:07:09,851 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-22 18:07:09,852 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1505446783] [2021-10-22 18:07:09,856 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-22 18:07:09,856 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-22 18:07:09,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-22 18:07:09,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-22 18:07:09,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-22 18:07:09,868 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-22 18:07:09,871 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 5 states have internal predecessors, (35), 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) [2021-10-22 18:07:09,871 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-22 18:07:10,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-22 18:07:10,016 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-22 18:07:10,016 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-10-22 18:07:10,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-22 18:07:10,018 INFO L82 PathProgramCache]: Analyzing trace with hash 539545614, now seen corresponding path program 1 times [2021-10-22 18:07:10,018 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-22 18:07:10,018 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [47897785] [2021-10-22 18:07:10,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-22 18:07:10,019 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-22 18:07:10,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-22 18:07:10,096 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-22 18:07:10,096 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-22 18:07:10,096 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [47897785] [2021-10-22 18:07:10,096 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [47897785] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-22 18:07:10,097 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-22 18:07:10,097 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-22 18:07:10,097 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2070612961] [2021-10-22 18:07:10,098 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-22 18:07:10,098 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-22 18:07:10,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-22 18:07:10,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-22 18:07:10,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-22 18:07:10,099 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-22 18:07:10,099 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 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) [2021-10-22 18:07:10,099 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-10-22 18:07:10,099 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-22 18:07:10,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-22 18:07:10,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-22 18:07:10,155 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-22 18:07:10,155 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-10-22 18:07:10,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-22 18:07:10,157 INFO L82 PathProgramCache]: Analyzing trace with hash 1266345919, now seen corresponding path program 1 times [2021-10-22 18:07:10,157 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-22 18:07:10,157 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1691927439] [2021-10-22 18:07:10,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-22 18:07:10,158 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-22 18:07:10,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-22 18:07:10,197 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-22 18:07:10,197 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-22 18:07:10,197 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1691927439] [2021-10-22 18:07:10,197 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1691927439] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-22 18:07:10,197 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-22 18:07:10,197 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-22 18:07:10,198 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [168334567] [2021-10-22 18:07:10,198 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-22 18:07:10,198 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-22 18:07:10,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-22 18:07:10,199 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-22 18:07:10,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-22 18:07:10,199 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-22 18:07:10,199 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 18.5) internal successors, (37), 3 states have internal predecessors, (37), 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) [2021-10-22 18:07:10,199 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-10-22 18:07:10,199 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-10-22 18:07:10,199 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-22 18:07:10,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-22 18:07:10,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-22 18:07:10,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-22 18:07:10,213 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-22 18:07:10,213 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-10-22 18:07:10,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-22 18:07:10,214 INFO L82 PathProgramCache]: Analyzing trace with hash -1016284227, now seen corresponding path program 1 times [2021-10-22 18:07:10,214 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-22 18:07:10,214 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [242831773] [2021-10-22 18:07:10,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-22 18:07:10,214 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-22 18:07:10,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-22 18:07:10,232 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-22 18:07:10,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-22 18:07:10,258 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-22 18:07:10,258 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-10-22 18:07:10,259 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION [2021-10-22 18:07:10,260 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-22 18:07:10,261 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION [2021-10-22 18:07:10,261 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION [2021-10-22 18:07:10,261 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION [2021-10-22 18:07:10,261 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-22 18:07:10,267 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-10-22 18:07:10,267 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-22 18:07:10,292 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 06:07:10 BasicIcfg [2021-10-22 18:07:10,293 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-22 18:07:10,294 INFO L168 Benchmark]: Toolchain (without parser) took 2340.55 ms. Allocated memory was 218.1 MB in the beginning and 320.9 MB in the end (delta: 102.8 MB). Free memory was 191.7 MB in the beginning and 155.3 MB in the end (delta: 36.3 MB). Peak memory consumption was 138.6 MB. Max. memory is 8.0 GB. [2021-10-22 18:07:10,294 INFO L168 Benchmark]: CDTParser took 0.09 ms. Allocated memory is still 218.1 MB. Free memory is still 182.6 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-10-22 18:07:10,295 INFO L168 Benchmark]: CACSL2BoogieTranslator took 623.76 ms. Allocated memory is still 218.1 MB. Free memory was 191.4 MB in the beginning and 149.4 MB in the end (delta: 42.0 MB). Peak memory consumption was 42.3 MB. Max. memory is 8.0 GB. [2021-10-22 18:07:10,295 INFO L168 Benchmark]: Boogie Procedure Inliner took 40.23 ms. Allocated memory is still 218.1 MB. Free memory was 149.4 MB in the beginning and 146.2 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2021-10-22 18:07:10,295 INFO L168 Benchmark]: Boogie Preprocessor took 22.81 ms. Allocated memory is still 218.1 MB. Free memory was 146.2 MB in the beginning and 144.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-10-22 18:07:10,296 INFO L168 Benchmark]: RCFGBuilder took 698.55 ms. Allocated memory was 218.1 MB in the beginning and 320.9 MB in the end (delta: 102.8 MB). Free memory was 143.8 MB in the beginning and 267.5 MB in the end (delta: -123.8 MB). Peak memory consumption was 16.8 MB. Max. memory is 8.0 GB. [2021-10-22 18:07:10,296 INFO L168 Benchmark]: TraceAbstraction took 949.55 ms. Allocated memory is still 320.9 MB. Free memory was 267.0 MB in the beginning and 155.3 MB in the end (delta: 111.7 MB). Peak memory consumption was 112.2 MB. Max. memory is 8.0 GB. [2021-10-22 18:07:10,298 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09 ms. Allocated memory is still 218.1 MB. Free memory is still 182.6 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 623.76 ms. Allocated memory is still 218.1 MB. Free memory was 191.4 MB in the beginning and 149.4 MB in the end (delta: 42.0 MB). Peak memory consumption was 42.3 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 40.23 ms. Allocated memory is still 218.1 MB. Free memory was 149.4 MB in the beginning and 146.2 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 22.81 ms. Allocated memory is still 218.1 MB. Free memory was 146.2 MB in the beginning and 144.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 698.55 ms. Allocated memory was 218.1 MB in the beginning and 320.9 MB in the end (delta: 102.8 MB). Free memory was 143.8 MB in the beginning and 267.5 MB in the end (delta: -123.8 MB). Peak memory consumption was 16.8 MB. Max. memory is 8.0 GB. * TraceAbstraction took 949.55 ms. Allocated memory is still 320.9 MB. Free memory was 267.0 MB in the beginning and 155.3 MB in the end (delta: 111.7 MB). Peak memory consumption was 112.2 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 255, positive: 231, positive conditional: 55, positive unconditional: 176, negative: 24, negative conditional: 21, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 236, positive: 231, positive conditional: 0, positive unconditional: 231, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 180, positive: 177, positive conditional: 0, positive unconditional: 177, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 180, positive: 175, positive conditional: 0, positive unconditional: 175, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 5, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 37, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 35, negative conditional: 0, negative unconditional: 35, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 236, positive: 54, positive conditional: 0, positive unconditional: 54, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 180, unknown conditional: 0, unknown unconditional: 180] , Statistics on independence cache: Total cache size (in pairs): 180, Positive cache size: 177, Positive conditional cache size: 0, Positive unconditional cache size: 177, Negative cache size: 3, Negative conditional cache size: 0, Negative unconditional cache size: 3, Independence queries for same thread: 19 - StatisticsResult: Persistent set benchmarks Persistent set computation time[ms]: 58, Number of persistent set computation: 95, Number of trivial persistent sets: 74, Underlying independence relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 255, positive: 231, positive conditional: 55, positive unconditional: 176, negative: 24, negative conditional: 21, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 236, positive: 231, positive conditional: 0, positive unconditional: 231, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 180, positive: 177, positive conditional: 0, positive unconditional: 177, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 180, positive: 175, positive conditional: 0, positive unconditional: 175, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 5, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 37, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 35, negative conditional: 0, negative unconditional: 35, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 236, positive: 54, positive conditional: 0, positive unconditional: 54, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 180, unknown conditional: 0, unknown unconditional: 180] , Statistics on independence cache: Total cache size (in pairs): 180, Positive cache size: 177, Positive conditional cache size: 0, Positive unconditional cache size: 177, Negative cache size: 3, Negative conditional cache size: 0, Negative unconditional cache size: 3, Independence queries for same thread: 19 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 1695]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L1696] 0 pthread_t t1; VAL [t1={7:0}] [L1697] 0 pthread_mutex_t mutex; VAL [mutex={3:0}, t1={7:0}] [L1698] 0 int pdev; VAL [mutex={3:0}, pdev=0, t1={7:0}] [L1709] 0 pdev = 1 VAL [mutex={3:0}, pdev=1, t1={7:0}] [L1695] COND FALSE 0 !(!expression) VAL [mutex={3:0}, pdev=1, t1={7:0}] [L1711] COND TRUE 0 __VERIFIER_nondet_int() VAL [mutex={3:0}, pdev=1, t1={7:0}] [L1712] FCALL, FORK 0 pthread_create(&t1, ((void *)0), thread1, ((void *)0)) VAL [arg={0:0}, mutex={3:0}, pdev=1, t1={7:0}] [L1714] 0 pdev = 2 VAL [arg={0:0}, mutex={3:0}, pdev=2, t1={7:0}] [L1702] 1 pdev = 6 VAL [arg={0:0}, arg={0:0}, mutex={3:0}, pdev=6, t1={7:0}] [L1695] COND TRUE 0 !expression [L1695] 0 reach_error() VAL [arg={0:0}, arg={0:0}, mutex={3:0}, pdev=6, t1={7:0}] - UnprovableResult [Line: 1695]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 1695]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 1695]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 1712]: 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 for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 3 procedures, 95 locations, 5 error locations. Started 1 CEGAR loops. OverallTime: 830.5ms, OverallIterations: 4, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 16.0ms, PartialOrderReductionTime: 240.6ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 16, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 13.4ms SsaConstructionTime, 69.9ms SatisfiabilityAnalysisTime, 234.1ms InterpolantComputationTime, 175 NumberOfCodeBlocks, 175 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 131 ConstructedInterpolants, 0 QuantifiedInterpolants, 155 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 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! [2021-10-22 18:07:10,322 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Forceful destruction successful, exit code 0 [2021-10-22 18:07:10,545 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...