/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-SemanticLbe.epf -i ../../../trunk/examples/svcomp/ldv-races/race-1_1-join.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-7bb8cbd [2020-10-16 01:58:39,933 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-16 01:58:39,935 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-16 01:58:39,965 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-16 01:58:39,965 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-16 01:58:39,973 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-16 01:58:39,974 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-16 01:58:39,977 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-16 01:58:39,979 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-16 01:58:39,982 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-16 01:58:39,983 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-16 01:58:39,983 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-16 01:58:39,984 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-16 01:58:39,986 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-16 01:58:39,988 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-16 01:58:39,989 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-16 01:58:39,990 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-16 01:58:39,994 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-16 01:58:39,996 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-16 01:58:40,000 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-16 01:58:40,001 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-16 01:58:40,004 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-16 01:58:40,005 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-16 01:58:40,005 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-16 01:58:40,017 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-10-16 01:58:40,019 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-16 01:58:40,020 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-16 01:58:40,020 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-16 01:58:40,023 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-16 01:58:40,024 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-16 01:58:40,024 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-16 01:58:40,025 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-16 01:58:40,025 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-16 01:58:40,025 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-16 01:58:40,027 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-16 01:58:40,028 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-16 01:58:40,028 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-PN-SemanticLbe.epf [2020-10-16 01:58:40,069 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-16 01:58:40,069 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-16 01:58:40,070 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-16 01:58:40,070 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-16 01:58:40,071 INFO L138 SettingsManager]: * Use SBE=true [2020-10-16 01:58:40,071 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-16 01:58:40,071 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-16 01:58:40,071 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-16 01:58:40,071 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-16 01:58:40,072 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-16 01:58:40,072 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-16 01:58:40,073 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-16 01:58:40,073 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-16 01:58:40,074 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-16 01:58:40,074 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-16 01:58:40,074 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-16 01:58:40,074 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-16 01:58:40,074 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-16 01:58:40,074 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-16 01:58:40,076 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-16 01:58:40,076 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-16 01:58:40,077 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-16 01:58:40,078 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-16 01:58:40,079 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-16 01:58:40,079 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-16 01:58:40,079 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-16 01:58:40,079 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-16 01:58:40,080 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2020-10-16 01:58:40,081 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-16 01:58:40,349 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-16 01:58:40,361 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-16 01:58:40,365 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-16 01:58:40,366 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-16 01:58:40,366 INFO L275 PluginConnector]: CDTParser initialized [2020-10-16 01:58:40,367 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-races/race-1_1-join.i [2020-10-16 01:58:40,423 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5d9bbb53d/e39915064b66426d932749c87a817d5f/FLAG19d437687 [2020-10-16 01:58:40,922 INFO L306 CDTParser]: Found 1 translation units. [2020-10-16 01:58:40,922 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-1_1-join.i [2020-10-16 01:58:40,946 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5d9bbb53d/e39915064b66426d932749c87a817d5f/FLAG19d437687 [2020-10-16 01:58:41,228 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5d9bbb53d/e39915064b66426d932749c87a817d5f [2020-10-16 01:58:41,236 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-16 01:58:41,237 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-16 01:58:41,238 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-16 01:58:41,238 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-16 01:58:41,245 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-16 01:58:41,246 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 01:58:41" (1/1) ... [2020-10-16 01:58:41,249 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e66fd55 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:58:41, skipping insertion in model container [2020-10-16 01:58:41,249 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 01:58:41" (1/1) ... [2020-10-16 01:58:41,258 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-16 01:58:41,335 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-16 01:58:42,051 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-16 01:58:42,066 INFO L203 MainTranslator]: Completed pre-run [2020-10-16 01:58:42,115 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-16 01:58:42,560 INFO L208 MainTranslator]: Completed translation [2020-10-16 01:58:42,560 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:58:42 WrapperNode [2020-10-16 01:58:42,561 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-16 01:58:42,562 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-16 01:58:42,562 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-16 01:58:42,562 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-16 01:58:42,571 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:58:42" (1/1) ... [2020-10-16 01:58:42,608 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:58:42" (1/1) ... [2020-10-16 01:58:42,636 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-16 01:58:42,637 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-16 01:58:42,637 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-16 01:58:42,637 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-16 01:58:42,646 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:58:42" (1/1) ... [2020-10-16 01:58:42,646 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:58:42" (1/1) ... [2020-10-16 01:58:42,650 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:58:42" (1/1) ... [2020-10-16 01:58:42,650 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:58:42" (1/1) ... [2020-10-16 01:58:42,664 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:58:42" (1/1) ... [2020-10-16 01:58:42,666 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:58:42" (1/1) ... [2020-10-16 01:58:42,671 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:58:42" (1/1) ... [2020-10-16 01:58:42,679 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-16 01:58:42,679 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-16 01:58:42,680 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-16 01:58:42,680 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-16 01:58:42,681 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:58:42" (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 [2020-10-16 01:58:42,770 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-16 01:58:42,770 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-16 01:58:42,771 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2020-10-16 01:58:42,771 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-16 01:58:42,771 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-16 01:58:42,772 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-16 01:58:42,772 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-16 01:58:42,773 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2020-10-16 01:58:42,773 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2020-10-16 01:58:42,774 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-16 01:58:42,776 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-16 01:58:42,778 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-16 01:58:43,412 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-16 01:58:43,413 INFO L298 CfgBuilder]: Removed 16 assume(true) statements. [2020-10-16 01:58:43,415 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 01:58:43 BoogieIcfgContainer [2020-10-16 01:58:43,416 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-16 01:58:43,418 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-16 01:58:43,418 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-16 01:58:43,422 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-16 01:58:43,423 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 01:58:41" (1/3) ... [2020-10-16 01:58:43,424 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1115695d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 01:58:43, skipping insertion in model container [2020-10-16 01:58:43,424 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:58:42" (2/3) ... [2020-10-16 01:58:43,425 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1115695d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 01:58:43, skipping insertion in model container [2020-10-16 01:58:43,425 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 01:58:43" (3/3) ... [2020-10-16 01:58:43,427 INFO L111 eAbstractionObserver]: Analyzing ICFG race-1_1-join.i [2020-10-16 01:58:43,438 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-16 01:58:43,447 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2020-10-16 01:58:43,448 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-16 01:58:43,485 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:58:43,485 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:58:43,486 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:58:43,486 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:58:43,486 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:58:43,487 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:58:43,487 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_ldv_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:58:43,488 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_ldv_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:58:43,489 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_ldv_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:58:43,490 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_ldv_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:58:43,490 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_ldv_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:58:43,490 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_ldv_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:58:43,490 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:58:43,491 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:58:43,496 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:58:43,497 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:58:43,497 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:58:43,497 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:58:43,497 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_ldv_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:58:43,497 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:58:43,498 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_ldv_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:58:43,521 INFO L253 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2020-10-16 01:58:43,540 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-16 01:58:43,540 INFO L378 AbstractCegarLoop]: Hoare is false [2020-10-16 01:58:43,541 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-16 01:58:43,541 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-16 01:58:43,541 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-16 01:58:43,541 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-16 01:58:43,541 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-16 01:58:43,541 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-16 01:58:43,555 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 82 places, 84 transitions, 176 flow [2020-10-16 01:58:43,596 INFO L129 PetriNetUnfolder]: 5/95 cut-off events. [2020-10-16 01:58:43,596 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2020-10-16 01:58:43,600 INFO L80 FinitePrefix]: Finished finitePrefix Result has 100 conditions, 95 events. 5/95 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 160 event pairs, 0 based on Foata normal form. 0/84 useless extension candidates. Maximal degree in co-relation 52. Up to 3 conditions per place. [2020-10-16 01:58:43,600 INFO L82 GeneralOperation]: Start removeDead. Operand has 82 places, 84 transitions, 176 flow [2020-10-16 01:58:43,606 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 78 places, 76 transitions, 158 flow [2020-10-16 01:58:43,609 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-16 01:58:43,611 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 78 places, 76 transitions, 158 flow [2020-10-16 01:58:43,614 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 78 places, 76 transitions, 158 flow [2020-10-16 01:58:43,614 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 78 places, 76 transitions, 158 flow [2020-10-16 01:58:43,631 INFO L129 PetriNetUnfolder]: 2/76 cut-off events. [2020-10-16 01:58:43,631 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2020-10-16 01:58:43,632 INFO L80 FinitePrefix]: Finished finitePrefix Result has 81 conditions, 76 events. 2/76 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 72 event pairs, 0 based on Foata normal form. 0/70 useless extension candidates. Maximal degree in co-relation 37. Up to 2 conditions per place. [2020-10-16 01:58:43,633 INFO L117 LiptonReduction]: Number of co-enabled transitions 392 [2020-10-16 01:58:44,887 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 60 [2020-10-16 01:58:45,278 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-16 01:58:45,382 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-16 01:58:45,387 INFO L132 LiptonReduction]: Checked pairs total: 355 [2020-10-16 01:58:45,387 INFO L134 LiptonReduction]: Total number of compositions: 82 [2020-10-16 01:58:45,390 INFO L182 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1783 [2020-10-16 01:58:45,394 INFO L129 PetriNetUnfolder]: 0/0 cut-off events. [2020-10-16 01:58:45,394 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-16 01:58:45,394 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 01:58:45,394 INFO L255 CegarLoopForPetriNet]: trace histogram [1] [2020-10-16 01:58:45,395 INFO L429 AbstractCegarLoop]: === Iteration 1 === [thread1Err0ASSERT_VIOLATIONERROR_FUNCTION, thread1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 01:58:45,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 01:58:45,400 INFO L82 PathProgramCache]: Analyzing trace with hash 328, now seen corresponding path program 1 times [2020-10-16 01:58:45,407 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 01:58:45,407 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1775438688] [2020-10-16 01:58:45,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 01:58:45,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 01:58:45,636 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 01:58:45,639 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1775438688] [2020-10-16 01:58:45,640 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 01:58:45,640 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2020-10-16 01:58:45,641 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1006264336] [2020-10-16 01:58:45,652 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-16 01:58:45,653 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 01:58:45,663 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-16 01:58:45,664 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-16 01:58:45,667 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 144 out of 166 [2020-10-16 01:58:45,668 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 14 places, 10 transitions, 26 flow. Second operand 2 states. [2020-10-16 01:58:45,669 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 01:58:45,669 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 144 of 166 [2020-10-16 01:58:45,670 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 01:58:45,674 INFO L129 PetriNetUnfolder]: 0/5 cut-off events. [2020-10-16 01:58:45,674 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2020-10-16 01:58:45,675 INFO L80 FinitePrefix]: Finished finitePrefix Result has 11 conditions, 5 events. 0/5 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 1 event pairs, 0 based on Foata normal form. 4/9 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2020-10-16 01:58:45,676 INFO L132 encePairwiseOnDemand]: 161/166 looper letters, 0 selfloop transitions, 0 changer transitions 5/5 dead transitions. [2020-10-16 01:58:45,676 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 10 places, 5 transitions, 16 flow [2020-10-16 01:58:45,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-16 01:58:45,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-10-16 01:58:45,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 293 transitions. [2020-10-16 01:58:45,691 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.8825301204819277 [2020-10-16 01:58:45,692 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 293 transitions. [2020-10-16 01:58:45,692 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 293 transitions. [2020-10-16 01:58:45,694 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 01:58:45,697 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 293 transitions. [2020-10-16 01:58:45,700 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 3 states. [2020-10-16 01:58:45,706 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 3 states. [2020-10-16 01:58:45,706 INFO L81 ComplementDD]: Finished complementDD. Result 3 states. [2020-10-16 01:58:45,709 INFO L185 Difference]: Start difference. First operand has 14 places, 10 transitions, 26 flow. Second operand 2 states and 293 transitions. [2020-10-16 01:58:45,710 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 10 places, 5 transitions, 16 flow [2020-10-16 01:58:45,712 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 8 places, 5 transitions, 12 flow, removed 0 selfloop flow, removed 2 redundant places. [2020-10-16 01:58:45,713 INFO L241 Difference]: Finished difference. Result has 8 places, 0 transitions, 0 flow [2020-10-16 01:58:45,715 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=166, PETRI_DIFFERENCE_MINUEND_FLOW=12, PETRI_DIFFERENCE_MINUEND_PLACES=7, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=5, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=5, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=0, PETRI_PLACES=8, PETRI_TRANSITIONS=0} [2020-10-16 01:58:45,716 INFO L342 CegarLoopForPetriNet]: 14 programPoint places, -6 predicate places. [2020-10-16 01:58:45,717 INFO L481 AbstractCegarLoop]: Abstraction has has 8 places, 0 transitions, 0 flow [2020-10-16 01:58:45,717 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-16 01:58:45,717 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-16 01:58:45,721 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 01:58:45 BasicIcfg [2020-10-16 01:58:45,721 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-16 01:58:45,723 INFO L168 Benchmark]: Toolchain (without parser) took 4485.77 ms. Allocated memory was 254.8 MB in the beginning and 372.2 MB in the end (delta: 117.4 MB). Free memory was 205.7 MB in the beginning and 188.9 MB in the end (delta: 16.8 MB). Peak memory consumption was 134.2 MB. Max. memory is 14.2 GB. [2020-10-16 01:58:45,724 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 254.8 MB. Free memory was 230.4 MB in the beginning and 229.5 MB in the end (delta: 838.9 kB). Peak memory consumption was 838.9 kB. Max. memory is 14.2 GB. [2020-10-16 01:58:45,725 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1322.97 ms. Allocated memory was 254.8 MB in the beginning and 360.7 MB in the end (delta: 105.9 MB). Free memory was 205.7 MB in the beginning and 327.4 MB in the end (delta: -121.7 MB). Peak memory consumption was 107.6 MB. Max. memory is 14.2 GB. [2020-10-16 01:58:45,726 INFO L168 Benchmark]: Boogie Procedure Inliner took 75.25 ms. Allocated memory is still 360.7 MB. Free memory was 327.4 MB in the beginning and 323.1 MB in the end (delta: 4.3 MB). Peak memory consumption was 4.3 MB. Max. memory is 14.2 GB. [2020-10-16 01:58:45,727 INFO L168 Benchmark]: Boogie Preprocessor took 42.15 ms. Allocated memory is still 360.7 MB. Free memory was 323.1 MB in the beginning and 320.9 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 14.2 GB. [2020-10-16 01:58:45,728 INFO L168 Benchmark]: RCFGBuilder took 736.59 ms. Allocated memory is still 360.7 MB. Free memory was 320.9 MB in the beginning and 281.3 MB in the end (delta: 39.5 MB). Peak memory consumption was 39.5 MB. Max. memory is 14.2 GB. [2020-10-16 01:58:45,729 INFO L168 Benchmark]: TraceAbstraction took 2303.24 ms. Allocated memory was 360.7 MB in the beginning and 372.2 MB in the end (delta: 11.5 MB). Free memory was 281.3 MB in the beginning and 188.9 MB in the end (delta: 92.4 MB). Peak memory consumption was 103.9 MB. Max. memory is 14.2 GB. [2020-10-16 01:58:45,734 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 254.8 MB. Free memory was 230.4 MB in the beginning and 229.5 MB in the end (delta: 838.9 kB). Peak memory consumption was 838.9 kB. Max. memory is 14.2 GB. * CACSL2BoogieTranslator took 1322.97 ms. Allocated memory was 254.8 MB in the beginning and 360.7 MB in the end (delta: 105.9 MB). Free memory was 205.7 MB in the beginning and 327.4 MB in the end (delta: -121.7 MB). Peak memory consumption was 107.6 MB. Max. memory is 14.2 GB. * Boogie Procedure Inliner took 75.25 ms. Allocated memory is still 360.7 MB. Free memory was 327.4 MB in the beginning and 323.1 MB in the end (delta: 4.3 MB). Peak memory consumption was 4.3 MB. Max. memory is 14.2 GB. * Boogie Preprocessor took 42.15 ms. Allocated memory is still 360.7 MB. Free memory was 323.1 MB in the beginning and 320.9 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 14.2 GB. * RCFGBuilder took 736.59 ms. Allocated memory is still 360.7 MB. Free memory was 320.9 MB in the beginning and 281.3 MB in the end (delta: 39.5 MB). Peak memory consumption was 39.5 MB. Max. memory is 14.2 GB. * TraceAbstraction took 2303.24 ms. Allocated memory was 360.7 MB in the beginning and 372.2 MB in the end (delta: 11.5 MB). Free memory was 281.3 MB in the beginning and 188.9 MB in the end (delta: 92.4 MB). Peak memory consumption was 103.9 MB. Max. memory is 14.2 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 282 VarBasedMoverChecksPositive, 0 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 4 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 1.7s, 78 PlacesBefore, 14 PlacesAfterwards, 76 TransitionsBefore, 10 TransitionsAfterwards, 392 CoEnabledTransitionPairs, 6 FixpointIterations, 49 TrivialSequentialCompositions, 28 ConcurrentSequentialCompositions, 1 TrivialYvCompositions, 2 ConcurrentYvCompositions, 2 ChoiceCompositions, 82 TotalNumberOfCompositions, 355 MoverChecksTotal - PositiveResult [Line: 1682]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 1682]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 1682]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 1682]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 79 locations, 4 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 2.1s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.8s, HoareTripleCheckerStatistics: 0 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=26occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 1 NumberOfCodeBlocks, 1 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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 correct! Received shutdown request...