/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-WP.epf -i ../../../trunk/examples/svcomp/ldv-races/race-1_3-join.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-7a177ad [2020-11-09 15:48:44,899 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-09 15:48:44,903 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-09 15:48:44,957 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-09 15:48:44,958 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-09 15:48:44,962 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-09 15:48:44,966 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-09 15:48:44,973 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-09 15:48:44,977 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-09 15:48:44,985 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-09 15:48:44,987 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-09 15:48:44,988 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-09 15:48:44,989 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-09 15:48:44,992 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-09 15:48:44,994 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-09 15:48:44,996 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-09 15:48:44,997 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-09 15:48:45,001 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-09 15:48:45,009 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-09 15:48:45,014 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-09 15:48:45,018 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-09 15:48:45,020 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-09 15:48:45,021 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-09 15:48:45,024 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-09 15:48:45,031 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-09 15:48:45,031 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-09 15:48:45,032 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-09 15:48:45,033 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-09 15:48:45,038 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-09 15:48:45,039 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-09 15:48:45,040 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-09 15:48:45,041 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-09 15:48:45,043 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-09 15:48:45,044 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-09 15:48:45,045 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-09 15:48:45,045 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-09 15:48:45,046 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-09 15:48:45,046 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-09 15:48:45,046 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-09 15:48:45,047 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-09 15:48:45,048 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-09 15:48:45,049 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-WP.epf [2020-11-09 15:48:45,104 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-09 15:48:45,104 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-09 15:48:45,106 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-09 15:48:45,106 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-09 15:48:45,106 INFO L138 SettingsManager]: * Use SBE=true [2020-11-09 15:48:45,106 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-09 15:48:45,107 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-09 15:48:45,107 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-09 15:48:45,107 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-09 15:48:45,107 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-09 15:48:45,107 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-09 15:48:45,108 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-09 15:48:45,108 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-09 15:48:45,108 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-09 15:48:45,108 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-09 15:48:45,108 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-09 15:48:45,108 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-09 15:48:45,109 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-09 15:48:45,109 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-09 15:48:45,109 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-09 15:48:45,109 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-09 15:48:45,110 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-09 15:48:45,110 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-09 15:48:45,110 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-11-09 15:48:45,110 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-09 15:48:45,111 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-09 15:48:45,111 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-09 15:48:45,111 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2020-11-09 15:48:45,111 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-11-09 15:48:45,111 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-09 15:48:45,112 INFO L138 SettingsManager]: * Interpolant automaton=MCR 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-11-09 15:48:45,522 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-09 15:48:45,548 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-09 15:48:45,552 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-09 15:48:45,553 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-09 15:48:45,554 INFO L275 PluginConnector]: CDTParser initialized [2020-11-09 15:48:45,555 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-races/race-1_3-join.i [2020-11-09 15:48:45,653 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4bef809b1/7597650e4d204d538e750e81f670b1b8/FLAG33e6847fe [2020-11-09 15:48:46,511 INFO L306 CDTParser]: Found 1 translation units. [2020-11-09 15:48:46,512 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-1_3-join.i [2020-11-09 15:48:46,547 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4bef809b1/7597650e4d204d538e750e81f670b1b8/FLAG33e6847fe [2020-11-09 15:48:46,685 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4bef809b1/7597650e4d204d538e750e81f670b1b8 [2020-11-09 15:48:46,688 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-09 15:48:46,698 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-11-09 15:48:46,700 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-09 15:48:46,700 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-09 15:48:46,704 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-09 15:48:46,705 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 03:48:46" (1/1) ... [2020-11-09 15:48:46,709 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@57fd6d9c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:48:46, skipping insertion in model container [2020-11-09 15:48:46,709 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 03:48:46" (1/1) ... [2020-11-09 15:48:46,718 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-09 15:48:46,773 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-09 15:48:47,612 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-09 15:48:47,626 INFO L203 MainTranslator]: Completed pre-run [2020-11-09 15:48:47,764 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-09 15:48:48,218 INFO L208 MainTranslator]: Completed translation [2020-11-09 15:48:48,218 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:48:48 WrapperNode [2020-11-09 15:48:48,219 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-09 15:48:48,221 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-09 15:48:48,221 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-09 15:48:48,221 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-09 15:48:48,233 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:48:48" (1/1) ... [2020-11-09 15:48:48,300 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:48:48" (1/1) ... [2020-11-09 15:48:48,358 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-09 15:48:48,361 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-09 15:48:48,361 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-09 15:48:48,361 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-09 15:48:48,371 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:48:48" (1/1) ... [2020-11-09 15:48:48,371 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:48:48" (1/1) ... [2020-11-09 15:48:48,381 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:48:48" (1/1) ... [2020-11-09 15:48:48,382 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:48:48" (1/1) ... [2020-11-09 15:48:48,393 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:48:48" (1/1) ... [2020-11-09 15:48:48,396 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:48:48" (1/1) ... [2020-11-09 15:48:48,402 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:48:48" (1/1) ... [2020-11-09 15:48:48,411 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-09 15:48:48,412 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-09 15:48:48,412 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-09 15:48:48,412 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-09 15:48:48,413 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:48:48" (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 [2020-11-09 15:48:48,520 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-11-09 15:48:48,520 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-09 15:48:48,520 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-11-09 15:48:48,521 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-09 15:48:48,521 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2020-11-09 15:48:48,521 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-11-09 15:48:48,521 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-09 15:48:48,521 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-09 15:48:48,521 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-09 15:48:48,522 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2020-11-09 15:48:48,522 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2020-11-09 15:48:48,522 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-09 15:48:48,522 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-09 15:48:48,524 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-11-09 15:48:49,497 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-09 15:48:49,498 INFO L298 CfgBuilder]: Removed 24 assume(true) statements. [2020-11-09 15:48:49,500 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 03:48:49 BoogieIcfgContainer [2020-11-09 15:48:49,501 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-09 15:48:49,503 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-09 15:48:49,503 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-09 15:48:49,507 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-09 15:48:49,507 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 03:48:46" (1/3) ... [2020-11-09 15:48:49,508 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3fe332f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 03:48:49, skipping insertion in model container [2020-11-09 15:48:49,509 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:48:48" (2/3) ... [2020-11-09 15:48:49,509 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3fe332f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 03:48:49, skipping insertion in model container [2020-11-09 15:48:49,509 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 03:48:49" (3/3) ... [2020-11-09 15:48:49,511 INFO L111 eAbstractionObserver]: Analyzing ICFG race-1_3-join.i [2020-11-09 15:48:49,531 WARN L168 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-11-09 15:48:49,531 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-11-09 15:48:49,536 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2020-11-09 15:48:49,537 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-11-09 15:48:49,583 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:49,584 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:49,584 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:49,584 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:49,585 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:49,586 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:49,586 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:49,586 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:49,586 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:49,587 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:49,587 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:49,587 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:49,588 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:49,588 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:49,588 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:49,588 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:49,591 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:49,591 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:49,592 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:49,592 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:49,592 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:49,601 INFO L149 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2020-11-09 15:48:49,615 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-11-09 15:48:49,651 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-09 15:48:49,651 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-09 15:48:49,651 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-11-09 15:48:49,651 INFO L380 AbstractCegarLoop]: Backedges is MCR [2020-11-09 15:48:49,651 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-09 15:48:49,652 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-09 15:48:49,652 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-09 15:48:49,657 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-09 15:48:49,680 INFO L128 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2020-11-09 15:48:49,681 INFO L135 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 95 places, 99 transitions, 206 flow [2020-11-09 15:48:49,685 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 95 places, 99 transitions, 206 flow [2020-11-09 15:48:49,688 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 95 places, 99 transitions, 206 flow [2020-11-09 15:48:49,779 INFO L129 PetriNetUnfolder]: 7/113 cut-off events. [2020-11-09 15:48:49,780 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2020-11-09 15:48:49,791 INFO L84 FinitePrefix]: Finished finitePrefix Result has 118 conditions, 113 events. 7/113 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 194 event pairs, 0 based on Foata normal form. 0/99 useless extension candidates. Maximal degree in co-relation 69. Up to 3 conditions per place. [2020-11-09 15:48:49,797 INFO L116 LiptonReduction]: Number of co-enabled transitions 238 [2020-11-09 15:48:53,511 WARN L194 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 73 [2020-11-09 15:48:53,622 WARN L194 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 69 [2020-11-09 15:48:53,843 WARN L194 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 73 [2020-11-09 15:48:53,967 WARN L194 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 69 [2020-11-09 15:48:54,516 WARN L194 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2020-11-09 15:48:54,662 WARN L194 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2020-11-09 15:48:54,820 WARN L194 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2020-11-09 15:48:54,966 WARN L194 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2020-11-09 15:48:55,296 WARN L194 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2020-11-09 15:48:55,456 WARN L194 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2020-11-09 15:48:55,626 WARN L194 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2020-11-09 15:48:55,784 WARN L194 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2020-11-09 15:48:56,316 WARN L194 SmtUtils]: Spent 463.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 116 [2020-11-09 15:48:56,511 WARN L194 SmtUtils]: Spent 183.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2020-11-09 15:48:57,005 WARN L194 SmtUtils]: Spent 491.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 128 [2020-11-09 15:48:57,243 WARN L194 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-11-09 15:48:57,505 WARN L194 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-11-09 15:48:57,757 WARN L194 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-11-09 15:48:58,294 WARN L194 SmtUtils]: Spent 535.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 130 [2020-11-09 15:48:58,553 WARN L194 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-11-09 15:48:58,564 INFO L131 LiptonReduction]: Checked pairs total: 333 [2020-11-09 15:48:58,564 INFO L133 LiptonReduction]: Total number of compositions: 127 [2020-11-09 15:48:58,571 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 17 places, 15 transitions, 38 flow [2020-11-09 15:48:58,579 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 23 states. [2020-11-09 15:48:58,581 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states. [2020-11-09 15:48:58,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2020-11-09 15:48:58,587 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 15:48:58,588 INFO L422 BasicCegarLoop]: trace histogram [1] [2020-11-09 15:48:58,588 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 15:48:58,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 15:48:58,595 INFO L82 PathProgramCache]: Analyzing trace with hash 437, now seen corresponding path program 1 times [2020-11-09 15:48:58,629 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 15:48:58,629 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1319601218] [2020-11-09 15:48:58,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 15:48:58,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 15:48:58,926 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 15:48:58,928 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1319601218] [2020-11-09 15:48:58,929 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 15:48:58,930 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2020-11-09 15:48:58,934 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [152339308] [2020-11-09 15:48:58,935 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 15:48:58,937 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 15:48:58,946 INFO L252 McrAutomatonBuilder]: Finished intersection with 2 states and 1 transitions. [2020-11-09 15:48:58,947 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 15:48:58,951 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 15:48:58,952 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-09 15:48:58,952 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 15:48:58,971 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-09 15:48:58,972 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-09 15:48:58,974 INFO L87 Difference]: Start difference. First operand 23 states. Second operand 2 states. [2020-11-09 15:48:58,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 15:48:58,984 INFO L93 Difference]: Finished difference Result 20 states and 25 transitions. [2020-11-09 15:48:58,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-09 15:48:58,985 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 1 [2020-11-09 15:48:58,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 15:48:58,995 INFO L225 Difference]: With dead ends: 20 [2020-11-09 15:48:58,996 INFO L226 Difference]: Without dead ends: 13 [2020-11-09 15:48:58,997 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-09 15:48:59,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2020-11-09 15:48:59,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2020-11-09 15:48:59,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2020-11-09 15:48:59,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 15 transitions. [2020-11-09 15:48:59,033 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 15 transitions. Word has length 1 [2020-11-09 15:48:59,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 15:48:59,034 INFO L481 AbstractCegarLoop]: Abstraction has 13 states and 15 transitions. [2020-11-09 15:48:59,034 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-09 15:48:59,034 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 15 transitions. [2020-11-09 15:48:59,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-11-09 15:48:59,035 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 15:48:59,035 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1] [2020-11-09 15:48:59,035 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-09 15:48:59,035 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 15:48:59,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 15:48:59,036 INFO L82 PathProgramCache]: Analyzing trace with hash 429935, now seen corresponding path program 1 times [2020-11-09 15:48:59,039 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 15:48:59,039 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [448882528] [2020-11-09 15:48:59,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 15:48:59,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 15:48:59,188 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 15:48:59,188 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [448882528] [2020-11-09 15:48:59,188 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 15:48:59,188 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-09 15:48:59,189 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1732012463] [2020-11-09 15:48:59,189 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 15:48:59,189 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 15:48:59,190 INFO L252 McrAutomatonBuilder]: Finished intersection with 4 states and 3 transitions. [2020-11-09 15:48:59,191 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 15:48:59,191 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 15:48:59,192 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-09 15:48:59,192 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 15:48:59,193 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-09 15:48:59,194 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-09 15:48:59,194 INFO L87 Difference]: Start difference. First operand 13 states and 15 transitions. Second operand 3 states. [2020-11-09 15:48:59,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 15:48:59,208 INFO L93 Difference]: Finished difference Result 11 states and 13 transitions. [2020-11-09 15:48:59,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-09 15:48:59,209 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2020-11-09 15:48:59,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 15:48:59,210 INFO L225 Difference]: With dead ends: 11 [2020-11-09 15:48:59,210 INFO L226 Difference]: Without dead ends: 10 [2020-11-09 15:48:59,211 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-09 15:48:59,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2020-11-09 15:48:59,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2020-11-09 15:48:59,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2020-11-09 15:48:59,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 12 transitions. [2020-11-09 15:48:59,214 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 12 transitions. Word has length 3 [2020-11-09 15:48:59,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 15:48:59,214 INFO L481 AbstractCegarLoop]: Abstraction has 10 states and 12 transitions. [2020-11-09 15:48:59,214 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-09 15:48:59,214 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 12 transitions. [2020-11-09 15:48:59,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-11-09 15:48:59,215 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 15:48:59,215 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-11-09 15:48:59,215 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-09 15:48:59,235 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 15:48:59,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 15:48:59,236 INFO L82 PathProgramCache]: Analyzing trace with hash 411283382, now seen corresponding path program 1 times [2020-11-09 15:48:59,238 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 15:48:59,238 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1587408647] [2020-11-09 15:48:59,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 15:48:59,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 15:48:59,325 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 15:48:59,326 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1587408647] [2020-11-09 15:48:59,326 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 15:48:59,326 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-09 15:48:59,327 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1635290598] [2020-11-09 15:48:59,327 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 15:48:59,328 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 15:48:59,329 INFO L252 McrAutomatonBuilder]: Finished intersection with 6 states and 5 transitions. [2020-11-09 15:48:59,330 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 15:48:59,330 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 15:48:59,330 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-09 15:48:59,331 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 15:48:59,331 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-09 15:48:59,332 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-09 15:48:59,332 INFO L87 Difference]: Start difference. First operand 10 states and 12 transitions. Second operand 3 states. [2020-11-09 15:48:59,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 15:48:59,344 INFO L93 Difference]: Finished difference Result 10 states and 10 transitions. [2020-11-09 15:48:59,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-09 15:48:59,344 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2020-11-09 15:48:59,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 15:48:59,345 INFO L225 Difference]: With dead ends: 10 [2020-11-09 15:48:59,345 INFO L226 Difference]: Without dead ends: 7 [2020-11-09 15:48:59,345 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-09 15:48:59,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states. [2020-11-09 15:48:59,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2020-11-09 15:48:59,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2020-11-09 15:48:59,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 6 transitions. [2020-11-09 15:48:59,347 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 6 transitions. Word has length 5 [2020-11-09 15:48:59,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 15:48:59,348 INFO L481 AbstractCegarLoop]: Abstraction has 7 states and 6 transitions. [2020-11-09 15:48:59,348 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-09 15:48:59,348 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 6 transitions. [2020-11-09 15:48:59,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-11-09 15:48:59,349 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 15:48:59,349 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-11-09 15:48:59,349 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-09 15:48:59,349 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 15:48:59,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 15:48:59,350 INFO L82 PathProgramCache]: Analyzing trace with hash -135112834, now seen corresponding path program 1 times [2020-11-09 15:48:59,351 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 15:48:59,351 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [198243693] [2020-11-09 15:48:59,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 15:48:59,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-09 15:48:59,390 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-09 15:48:59,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-09 15:48:59,412 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-09 15:48:59,439 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-09 15:48:59,439 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-09 15:48:59,440 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-09 15:48:59,471 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 03:48:59 BasicIcfg [2020-11-09 15:48:59,471 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-09 15:48:59,473 INFO L168 Benchmark]: Toolchain (without parser) took 12782.41 ms. Allocated memory was 174.1 MB in the beginning and 251.7 MB in the end (delta: 77.6 MB). Free memory was 148.0 MB in the beginning and 199.8 MB in the end (delta: -51.9 MB). Peak memory consumption was 26.5 MB. Max. memory is 8.0 GB. [2020-11-09 15:48:59,476 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 125.8 MB. Free memory was 105.5 MB in the beginning and 105.4 MB in the end (delta: 120.7 kB). There was no memory consumed. Max. memory is 8.0 GB. [2020-11-09 15:48:59,477 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1520.17 ms. Allocated memory is still 174.1 MB. Free memory was 147.5 MB in the beginning and 107.5 MB in the end (delta: 40.0 MB). Peak memory consumption was 42.9 MB. Max. memory is 8.0 GB. [2020-11-09 15:48:59,479 INFO L168 Benchmark]: Boogie Procedure Inliner took 137.74 ms. Allocated memory is still 174.1 MB. Free memory was 107.5 MB in the beginning and 104.4 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2020-11-09 15:48:59,486 INFO L168 Benchmark]: Boogie Preprocessor took 50.29 ms. Allocated memory is still 174.1 MB. Free memory was 104.4 MB in the beginning and 102.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-11-09 15:48:59,487 INFO L168 Benchmark]: RCFGBuilder took 1089.40 ms. Allocated memory is still 174.1 MB. Free memory was 101.8 MB in the beginning and 131.7 MB in the end (delta: -29.9 MB). Peak memory consumption was 25.7 MB. Max. memory is 8.0 GB. [2020-11-09 15:48:59,487 INFO L168 Benchmark]: TraceAbstraction took 9968.17 ms. Allocated memory was 174.1 MB in the beginning and 251.7 MB in the end (delta: 77.6 MB). Free memory was 131.2 MB in the beginning and 199.8 MB in the end (delta: -68.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 8.0 GB. [2020-11-09 15:48:59,497 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 125.8 MB. Free memory was 105.5 MB in the beginning and 105.4 MB in the end (delta: 120.7 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 1520.17 ms. Allocated memory is still 174.1 MB. Free memory was 147.5 MB in the beginning and 107.5 MB in the end (delta: 40.0 MB). Peak memory consumption was 42.9 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 137.74 ms. Allocated memory is still 174.1 MB. Free memory was 107.5 MB in the beginning and 104.4 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 50.29 ms. Allocated memory is still 174.1 MB. Free memory was 104.4 MB in the beginning and 102.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1089.40 ms. Allocated memory is still 174.1 MB. Free memory was 101.8 MB in the beginning and 131.7 MB in the end (delta: -29.9 MB). Peak memory consumption was 25.7 MB. Max. memory is 8.0 GB. * TraceAbstraction took 9968.17 ms. Allocated memory was 174.1 MB in the beginning and 251.7 MB in the end (delta: 77.6 MB). Free memory was 131.2 MB in the beginning and 199.8 MB in the end (delta: -68.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 130 VarBasedMoverChecksPositive, 13 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 4 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 8.8s, 95 PlacesBefore, 17 PlacesAfterwards, 99 TransitionsBefore, 15 TransitionsAfterwards, 238 CoEnabledTransitionPairs, 7 FixpointIterations, 82 TrivialSequentialCompositions, 16 ConcurrentSequentialCompositions, 15 TrivialYvCompositions, 8 ConcurrentYvCompositions, 6 ChoiceCompositions, 127 TotalNumberOfCompositions, 333 MoverChecksTotal - CounterExampleResult [Line: 1693]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L1696] 0 pthread_t t1; [L1697] 0 pthread_mutex_t mutex; [L1698] 0 int pdev; [L1709] 0 pdev = 1 [L1695] COND FALSE 0 !(!expression) [L1711] COND TRUE 0 __VERIFIER_nondet_int() [L1712] FCALL, FORK 0 pthread_create(&t1, ((void *)0), thread1, ((void *)0)) VAL [arg={0:0}, mutex={5:0}, pdev=1, t1={6:0}] [L1713] 0 return 0; [L1734] COND FALSE 0 !(module_init()!=0) [L1721] 0 void *status; [L1723] 0 pdev = 4 VAL [arg={0:0}, mutex={5:0}, pdev=4, t1={6:0}] [L1702] 1 pdev = 6 [L1705] 1 return 0; [L1695] COND TRUE 0 !expression [L1693] COND FALSE 0 !(0) [L1693] 0 __assert_fail ("0", "race-1_3-join.c", 10, __extension__ __PRETTY_FUNCTION__) VAL [\result={0:0}, arg={0:0}, arg={0:0}, mutex={5:0}, pdev=6, t1={6:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 92 locations, 4 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 9.7s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 8.9s, HoareTripleCheckerStatistics: 25 SDtfs, 0 SDslu, 5 SDs, 0 SdLazy, 7 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=23occurred 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: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 15 NumberOfCodeBlocks, 15 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 6 ConstructedInterpolants, 0 QuantifiedInterpolants, 36 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! Received shutdown request...