/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-MCRwithoutDepranks-Lazy.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/weaver/parallel-simple-equiv.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-4b0ab11 [2022-03-04 09:13:42,903 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-04 09:13:42,905 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-04 09:13:42,988 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-03-04 09:13:42,988 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-03-04 09:13:42,990 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-03-04 09:13:42,993 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-03-04 09:13:42,995 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-03-04 09:13:42,997 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-03-04 09:13:43,001 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-03-04 09:13:43,001 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-03-04 09:13:43,002 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-03-04 09:13:43,002 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-04 09:13:43,003 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-04 09:13:43,004 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-04 09:13:43,006 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-04 09:13:43,006 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-04 09:13:43,007 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-04 09:13:43,009 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-04 09:13:43,012 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-04 09:13:43,013 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-04 09:13:43,013 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-04 09:13:43,014 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-04 09:13:43,015 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-04 09:13:43,016 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-03-04 09:13:43,016 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-03-04 09:13:43,016 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-03-04 09:13:43,017 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-03-04 09:13:43,017 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-03-04 09:13:43,018 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-03-04 09:13:43,018 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-03-04 09:13:43,018 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-03-04 09:13:43,019 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-03-04 09:13:43,019 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-03-04 09:13:43,020 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-03-04 09:13:43,020 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-03-04 09:13:43,020 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-03-04 09:13:43,020 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-03-04 09:13:43,021 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-04 09:13:43,021 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-04 09:13:43,022 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-04 09:13:43,022 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-MCRwithoutDepranks-Lazy.epf [2022-03-04 09:13:43,038 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-04 09:13:43,038 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-04 09:13:43,039 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-03-04 09:13:43,039 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-03-04 09:13:43,040 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-04 09:13:43,040 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-04 09:13:43,040 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-04 09:13:43,040 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-04 09:13:43,040 INFO L138 SettingsManager]: * Use SBE=true [2022-03-04 09:13:43,041 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-04 09:13:43,041 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-04 09:13:43,041 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-04 09:13:43,041 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-04 09:13:43,041 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-04 09:13:43,041 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-04 09:13:43,041 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-04 09:13:43,041 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-04 09:13:43,042 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-04 09:13:43,042 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-04 09:13:43,042 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-04 09:13:43,042 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-04 09:13:43,042 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-04 09:13:43,042 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-04 09:13:43,042 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-04 09:13:43,042 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-04 09:13:43,042 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-04 09:13:43,043 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-04 09:13:43,043 INFO L138 SettingsManager]: * Construct finite automaton lazily=true [2022-03-04 09:13:43,043 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-03-04 09:13:43,043 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-04 09:13:43,043 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-04 09:13:43,043 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-04 09:13:43,043 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-03-04 09:13:43,043 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-03-04 09:13:43,043 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-04 09:13:43,043 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=MCR_WITHOUT_DEPRANKS [2022-03-04 09:13:43,044 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-03-04 09:13:43,231 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-04 09:13:43,252 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-04 09:13:43,254 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-04 09:13:43,255 INFO L271 PluginConnector]: Initializing CDTParser... [2022-03-04 09:13:43,256 INFO L275 PluginConnector]: CDTParser initialized [2022-03-04 09:13:43,257 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/parallel-simple-equiv.wvr.c [2022-03-04 09:13:43,304 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bb436623e/2a17ab3f98254a539713feb7e78cb07e/FLAG821dee85c [2022-03-04 09:13:43,734 INFO L306 CDTParser]: Found 1 translation units. [2022-03-04 09:13:43,735 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-simple-equiv.wvr.c [2022-03-04 09:13:43,744 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bb436623e/2a17ab3f98254a539713feb7e78cb07e/FLAG821dee85c [2022-03-04 09:13:43,759 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bb436623e/2a17ab3f98254a539713feb7e78cb07e [2022-03-04 09:13:43,762 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-04 09:13:43,765 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-03-04 09:13:43,775 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-03-04 09:13:43,775 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-03-04 09:13:43,781 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-03-04 09:13:43,782 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 09:13:43" (1/1) ... [2022-03-04 09:13:43,783 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e5cd5c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:13:43, skipping insertion in model container [2022-03-04 09:13:43,784 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 09:13:43" (1/1) ... [2022-03-04 09:13:43,789 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-03-04 09:13:43,803 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-03-04 09:13:43,969 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-simple-equiv.wvr.c[2212,2225] [2022-03-04 09:13:43,971 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-04 09:13:43,976 INFO L203 MainTranslator]: Completed pre-run [2022-03-04 09:13:43,989 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-simple-equiv.wvr.c[2212,2225] [2022-03-04 09:13:43,989 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-04 09:13:44,001 INFO L208 MainTranslator]: Completed translation [2022-03-04 09:13:44,001 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:13:44 WrapperNode [2022-03-04 09:13:44,001 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-03-04 09:13:44,002 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-03-04 09:13:44,002 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-03-04 09:13:44,003 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-03-04 09:13:44,008 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:13:44" (1/1) ... [2022-03-04 09:13:44,013 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:13:44" (1/1) ... [2022-03-04 09:13:44,026 INFO L137 Inliner]: procedures = 22, calls = 30, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 71 [2022-03-04 09:13:44,026 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-03-04 09:13:44,027 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-04 09:13:44,027 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-04 09:13:44,027 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-04 09:13:44,033 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:13:44" (1/1) ... [2022-03-04 09:13:44,033 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:13:44" (1/1) ... [2022-03-04 09:13:44,034 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:13:44" (1/1) ... [2022-03-04 09:13:44,035 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:13:44" (1/1) ... [2022-03-04 09:13:44,038 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:13:44" (1/1) ... [2022-03-04 09:13:44,039 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:13:44" (1/1) ... [2022-03-04 09:13:44,039 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:13:44" (1/1) ... [2022-03-04 09:13:44,041 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-04 09:13:44,042 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-04 09:13:44,042 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-04 09:13:44,042 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-04 09:13:44,043 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:13:44" (1/1) ... [2022-03-04 09:13:44,048 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-04 09:13:44,057 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 09:13:44,069 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-03-04 09:13:44,072 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-03-04 09:13:44,096 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-03-04 09:13:44,097 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-03-04 09:13:44,097 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-03-04 09:13:44,097 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-03-04 09:13:44,097 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-03-04 09:13:44,097 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-03-04 09:13:44,097 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-03-04 09:13:44,097 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-03-04 09:13:44,098 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-03-04 09:13:44,098 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-03-04 09:13:44,098 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-03-04 09:13:44,098 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-03-04 09:13:44,098 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-04 09:13:44,098 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-04 09:13:44,098 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-03-04 09:13:44,098 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-03-04 09:13:44,100 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-03-04 09:13:44,166 INFO L234 CfgBuilder]: Building ICFG [2022-03-04 09:13:44,168 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-04 09:13:44,345 INFO L275 CfgBuilder]: Performing block encoding [2022-03-04 09:13:44,377 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-04 09:13:44,378 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-03-04 09:13:44,379 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.03 09:13:44 BoogieIcfgContainer [2022-03-04 09:13:44,379 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-04 09:13:44,381 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-04 09:13:44,381 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-04 09:13:44,389 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-04 09:13:44,389 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.03 09:13:43" (1/3) ... [2022-03-04 09:13:44,390 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@262a4ce1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 09:13:44, skipping insertion in model container [2022-03-04 09:13:44,390 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:13:44" (2/3) ... [2022-03-04 09:13:44,390 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@262a4ce1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 09:13:44, skipping insertion in model container [2022-03-04 09:13:44,390 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.03 09:13:44" (3/3) ... [2022-03-04 09:13:44,391 INFO L111 eAbstractionObserver]: Analyzing ICFG parallel-simple-equiv.wvr.c [2022-03-04 09:13:44,395 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-03-04 09:13:44,395 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-03-04 09:13:44,395 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-04 09:13:44,395 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-03-04 09:13:44,436 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 09:13:44,436 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 09:13:44,437 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 09:13:44,437 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 09:13:44,437 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 09:13:44,437 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 09:13:44,437 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 09:13:44,438 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 09:13:44,438 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 09:13:44,438 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 09:13:44,438 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 09:13:44,438 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 09:13:44,439 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 09:13:44,439 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 09:13:44,439 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 09:13:44,439 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 09:13:44,441 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 09:13:44,442 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 09:13:44,442 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 09:13:44,442 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 09:13:44,443 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 09:13:44,443 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 09:13:44,443 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 09:13:44,443 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 09:13:44,447 INFO L148 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-03-04 09:13:44,486 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-03-04 09:13:44,486 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 09:13:44,488 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-03-04 09:13:44,523 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2022-03-04 09:13:44,534 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-04 09:13:44,544 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mLazyFiniteAutomaton=true, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR, mMcrOptimizeForkJoin=true, mMcrOverapproximateWrwc=true [2022-03-04 09:13:44,545 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-03-04 09:13:44,677 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 125 transitions and produced 126 states. [2022-03-04 09:13:44,679 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-04 09:13:44,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 09:13:44,689 INFO L85 PathProgramCache]: Analyzing trace with hash 410438165, now seen corresponding path program 1 times [2022-03-04 09:13:44,698 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 09:13:44,698 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [357575818] [2022-03-04 09:13:44,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 09:13:44,699 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 09:13:44,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 09:13:44,914 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 09:13:44,915 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 09:13:44,915 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [357575818] [2022-03-04 09:13:44,916 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [357575818] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-04 09:13:44,916 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-04 09:13:44,916 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-03-04 09:13:44,918 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [355426372] [2022-03-04 09:13:44,918 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-04 09:13:44,922 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-03-04 09:13:44,922 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 09:13:44,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-03-04 09:13:44,946 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-03-04 09:13:44,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 09:13:44,948 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 09:13:44,949 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 39.0) internal successors, (78), 2 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-04 09:13:44,949 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 09:13:45,016 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 125 transitions and produced 126 states. [2022-03-04 09:13:45,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 09:13:45,017 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-04 09:13:45,017 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-04 09:13:45,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 09:13:45,020 INFO L85 PathProgramCache]: Analyzing trace with hash 163918024, now seen corresponding path program 1 times [2022-03-04 09:13:45,020 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 09:13:45,021 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1895154810] [2022-03-04 09:13:45,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 09:13:45,021 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 09:13:45,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 09:13:45,684 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 09:13:45,684 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 09:13:45,684 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1895154810] [2022-03-04 09:13:45,684 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1895154810] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-04 09:13:45,685 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-04 09:13:45,685 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-04 09:13:45,685 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1986440594] [2022-03-04 09:13:45,685 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-04 09:13:45,687 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-04 09:13:45,687 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 09:13:45,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-04 09:13:45,688 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-03-04 09:13:45,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 09:13:45,689 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 09:13:45,689 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 6.909090909090909) internal successors, (76), 11 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-04 09:13:45,690 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 09:13:45,690 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.