/usr/bin/java -Xmx8000000000 -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/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-WP.epf -i ../../../trunk/examples/svcomp/ldv-races/race-1_1-join.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-bf4350c [2020-09-18 02:43:14,664 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-18 02:43:14,668 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-18 02:43:14,696 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-18 02:43:14,696 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-18 02:43:14,697 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-18 02:43:14,699 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-18 02:43:14,701 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-18 02:43:14,703 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-18 02:43:14,704 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-18 02:43:14,706 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-18 02:43:14,707 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-18 02:43:14,707 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-18 02:43:14,708 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-18 02:43:14,709 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-18 02:43:14,711 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-18 02:43:14,716 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-18 02:43:14,717 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-18 02:43:14,719 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-18 02:43:14,723 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-18 02:43:14,728 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-18 02:43:14,732 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-18 02:43:14,734 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-18 02:43:14,736 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-18 02:43:14,742 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-18 02:43:14,742 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-18 02:43:14,742 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-18 02:43:14,745 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-18 02:43:14,745 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-18 02:43:14,748 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-18 02:43:14,750 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-18 02:43:14,751 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-18 02:43:14,752 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-18 02:43:14,752 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-18 02:43:14,754 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-18 02:43:14,754 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-18 02:43:14,755 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-18 02:43:14,755 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-18 02:43:14,756 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-18 02:43:14,757 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-18 02:43:14,759 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-18 02:43:14,760 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 [2020-09-18 02:43:14,824 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-18 02:43:14,825 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-18 02:43:14,826 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-18 02:43:14,826 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-18 02:43:14,826 INFO L138 SettingsManager]: * Use SBE=true [2020-09-18 02:43:14,827 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-18 02:43:14,830 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-18 02:43:14,830 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-18 02:43:14,830 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-18 02:43:14,830 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-18 02:43:14,831 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-18 02:43:14,831 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-18 02:43:14,831 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-18 02:43:14,831 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-18 02:43:14,831 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-18 02:43:14,832 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-18 02:43:14,832 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-18 02:43:14,832 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-18 02:43:14,832 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-18 02:43:14,832 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-18 02:43:14,832 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-18 02:43:14,832 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-18 02:43:14,834 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-18 02:43:14,834 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-09-18 02:43:14,834 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-18 02:43:14,834 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-18 02:43:14,835 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-18 02:43:14,835 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2020-09-18 02:43:14,835 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-09-18 02:43:14,835 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-18 02:43:14,835 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2020-09-18 02:43:15,357 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-18 02:43:15,377 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-18 02:43:15,383 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-18 02:43:15,385 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-18 02:43:15,386 INFO L275 PluginConnector]: CDTParser initialized [2020-09-18 02:43:15,387 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-races/race-1_1-join.i [2020-09-18 02:43:15,471 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/02a26ed75/6737550fa25644c78b0bab6b7afbb2f2/FLAGa596f2c30 [2020-09-18 02:43:16,222 INFO L306 CDTParser]: Found 1 translation units. [2020-09-18 02:43:16,223 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-1_1-join.i [2020-09-18 02:43:16,253 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/02a26ed75/6737550fa25644c78b0bab6b7afbb2f2/FLAGa596f2c30 [2020-09-18 02:43:16,376 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/02a26ed75/6737550fa25644c78b0bab6b7afbb2f2 [2020-09-18 02:43:16,390 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-18 02:43:16,396 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-09-18 02:43:16,399 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-18 02:43:16,399 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-18 02:43:16,404 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-18 02:43:16,405 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.09 02:43:16" (1/1) ... [2020-09-18 02:43:16,410 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c2a03ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 02:43:16, skipping insertion in model container [2020-09-18 02:43:16,411 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.09 02:43:16" (1/1) ... [2020-09-18 02:43:16,422 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-18 02:43:16,517 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-18 02:43:17,358 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-18 02:43:17,376 INFO L203 MainTranslator]: Completed pre-run [2020-09-18 02:43:17,463 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-18 02:43:18,064 INFO L208 MainTranslator]: Completed translation [2020-09-18 02:43:18,066 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 02:43:18 WrapperNode [2020-09-18 02:43:18,066 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-18 02:43:18,069 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-09-18 02:43:18,069 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-09-18 02:43:18,069 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-09-18 02:43:18,086 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 02:43:18" (1/1) ... [2020-09-18 02:43:18,178 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 02:43:18" (1/1) ... [2020-09-18 02:43:18,261 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-09-18 02:43:18,262 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-18 02:43:18,262 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-18 02:43:18,262 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-18 02:43:18,277 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 02:43:18" (1/1) ... [2020-09-18 02:43:18,277 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 02:43:18" (1/1) ... [2020-09-18 02:43:18,291 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 02:43:18" (1/1) ... [2020-09-18 02:43:18,292 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 02:43:18" (1/1) ... [2020-09-18 02:43:18,331 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 02:43:18" (1/1) ... [2020-09-18 02:43:18,342 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 02:43:18" (1/1) ... [2020-09-18 02:43:18,353 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 02:43:18" (1/1) ... [2020-09-18 02:43:18,368 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-18 02:43:18,372 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-18 02:43:18,372 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-18 02:43:18,373 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-18 02:43:18,374 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 02:43:18" (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 [2020-09-18 02:43:18,490 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-18 02:43:18,490 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-18 02:43:18,492 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2020-09-18 02:43:18,492 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-18 02:43:18,492 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-18 02:43:18,493 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-18 02:43:18,494 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-18 02:43:18,494 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2020-09-18 02:43:18,495 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2020-09-18 02:43:18,495 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-18 02:43:18,495 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-18 02:43:18,498 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-09-18 02:43:19,180 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-18 02:43:19,180 INFO L298 CfgBuilder]: Removed 16 assume(true) statements. [2020-09-18 02:43:19,185 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.09 02:43:19 BoogieIcfgContainer [2020-09-18 02:43:19,186 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-18 02:43:19,187 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-18 02:43:19,188 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-18 02:43:19,192 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-18 02:43:19,192 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.09 02:43:16" (1/3) ... [2020-09-18 02:43:19,193 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@293d6544 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.09 02:43:19, skipping insertion in model container [2020-09-18 02:43:19,193 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 02:43:18" (2/3) ... [2020-09-18 02:43:19,194 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@293d6544 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.09 02:43:19, skipping insertion in model container [2020-09-18 02:43:19,194 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.09 02:43:19" (3/3) ... [2020-09-18 02:43:19,196 INFO L109 eAbstractionObserver]: Analyzing ICFG race-1_1-join.i [2020-09-18 02:43:19,208 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-09-18 02:43:19,208 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-18 02:43:19,218 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2020-09-18 02:43:19,219 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-09-18 02:43:19,249 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 02:43:19,249 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 02:43:19,249 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 02:43:19,249 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 02:43:19,250 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 02:43:19,250 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 02:43:19,250 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_ldv_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 02:43:19,251 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_ldv_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 02:43:19,251 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_ldv_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 02:43:19,251 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_ldv_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 02:43:19,251 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_ldv_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 02:43:19,252 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_ldv_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 02:43:19,252 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 02:43:19,252 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 02:43:19,257 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 02:43:19,257 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 02:43:19,257 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 02:43:19,258 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 02:43:19,258 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_ldv_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 02:43:19,258 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 02:43:19,258 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_ldv_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 02:43:19,293 INFO L251 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2020-09-18 02:43:19,322 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-18 02:43:19,322 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-18 02:43:19,322 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-18 02:43:19,322 INFO L378 AbstractCegarLoop]: Backedges is MCR [2020-09-18 02:43:19,322 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-18 02:43:19,323 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-18 02:43:19,323 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-18 02:43:19,323 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-18 02:43:19,343 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 82 places, 84 transitions, 176 flow [2020-09-18 02:43:19,345 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 82 places, 84 transitions, 176 flow [2020-09-18 02:43:19,394 INFO L129 PetriNetUnfolder]: 5/95 cut-off events. [2020-09-18 02:43:19,395 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2020-09-18 02:43:19,401 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. [2020-09-18 02:43:19,405 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 82 places, 84 transitions, 176 flow [2020-09-18 02:43:19,430 INFO L129 PetriNetUnfolder]: 5/95 cut-off events. [2020-09-18 02:43:19,431 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2020-09-18 02:43:19,431 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. [2020-09-18 02:43:19,433 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 392 [2020-09-18 02:43:19,434 INFO L182 etLargeBlockEncoding]: Variable Check. [2020-09-18 02:43:21,367 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 60 [2020-09-18 02:43:22,063 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2020-09-18 02:43:22,188 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-09-18 02:43:22,300 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-09-18 02:43:22,327 INFO L206 etLargeBlockEncoding]: Checked pairs total: 293 [2020-09-18 02:43:22,328 INFO L214 etLargeBlockEncoding]: Total number of compositions: 102 [2020-09-18 02:43:22,333 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 16 places, 14 transitions, 36 flow [2020-09-18 02:43:22,345 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 21 states. [2020-09-18 02:43:22,348 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states. [2020-09-18 02:43:22,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2020-09-18 02:43:22,357 INFO L414 BasicCegarLoop]: Found error trace [2020-09-18 02:43:22,358 INFO L422 BasicCegarLoop]: trace histogram [1] [2020-09-18 02:43:22,359 INFO L427 AbstractCegarLoop]: === Iteration 1 === [thread1Err0ASSERT_VIOLATIONERROR_FUNCTION, thread1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-18 02:43:22,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-18 02:43:22,367 INFO L82 PathProgramCache]: Analyzing trace with hash 346, now seen corresponding path program 1 times [2020-09-18 02:43:22,392 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-18 02:43:22,393 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2083548257] [2020-09-18 02:43:22,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-18 02:43:22,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-18 02:43:22,684 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-18 02:43:22,685 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2083548257] [2020-09-18 02:43:22,686 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-18 02:43:22,686 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2020-09-18 02:43:22,687 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1513396932] [2020-09-18 02:43:22,689 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-18 02:43:22,692 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-18 02:43:22,703 INFO L274 McrAutomatonBuilder]: Finished intersection with 2 states and 1 transitions. [2020-09-18 02:43:22,704 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-18 02:43:22,709 INFO L409 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-18 02:43:22,710 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-09-18 02:43:22,710 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-18 02:43:22,730 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-09-18 02:43:22,731 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-09-18 02:43:22,733 INFO L87 Difference]: Start difference. First operand 21 states. Second operand 2 states. [2020-09-18 02:43:22,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-18 02:43:22,765 INFO L93 Difference]: Finished difference Result 14 states and 17 transitions. [2020-09-18 02:43:22,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-09-18 02:43:22,767 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 1 [2020-09-18 02:43:22,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-18 02:43:22,776 INFO L225 Difference]: With dead ends: 14 [2020-09-18 02:43:22,776 INFO L226 Difference]: Without dead ends: 0 [2020-09-18 02:43:22,778 INFO L675 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 [2020-09-18 02:43:22,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-18 02:43:22,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-18 02:43:22,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-18 02:43:22,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-18 02:43:22,809 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 1 [2020-09-18 02:43:22,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-18 02:43:22,809 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-18 02:43:22,809 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-09-18 02:43:22,810 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-18 02:43:22,810 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-18 02:43:22,810 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-18 02:43:22,816 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.09 02:43:22 BasicIcfg [2020-09-18 02:43:22,816 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-18 02:43:22,819 INFO L168 Benchmark]: Toolchain (without parser) took 6426.40 ms. Allocated memory was 137.9 MB in the beginning and 308.3 MB in the end (delta: 170.4 MB). Free memory was 98.3 MB in the beginning and 269.4 MB in the end (delta: -171.2 MB). Peak memory consumption was 134.8 MB. Max. memory is 7.1 GB. [2020-09-18 02:43:22,820 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 137.9 MB. Free memory was 119.4 MB in the beginning and 119.2 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2020-09-18 02:43:22,821 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1668.52 ms. Allocated memory was 137.9 MB in the beginning and 231.2 MB in the end (delta: 93.3 MB). Free memory was 97.6 MB in the beginning and 172.4 MB in the end (delta: -74.8 MB). Peak memory consumption was 81.9 MB. Max. memory is 7.1 GB. [2020-09-18 02:43:22,822 INFO L168 Benchmark]: Boogie Procedure Inliner took 192.62 ms. Allocated memory is still 231.2 MB. Free memory was 172.4 MB in the beginning and 167.9 MB in the end (delta: 4.5 MB). Peak memory consumption was 4.5 MB. Max. memory is 7.1 GB. [2020-09-18 02:43:22,823 INFO L168 Benchmark]: Boogie Preprocessor took 106.84 ms. Allocated memory is still 231.2 MB. Free memory was 167.9 MB in the beginning and 166.4 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.5 MB. Max. memory is 7.1 GB. [2020-09-18 02:43:22,825 INFO L168 Benchmark]: RCFGBuilder took 813.93 ms. Allocated memory is still 231.2 MB. Free memory was 166.4 MB in the beginning and 127.0 MB in the end (delta: 39.5 MB). Peak memory consumption was 39.5 MB. Max. memory is 7.1 GB. [2020-09-18 02:43:22,826 INFO L168 Benchmark]: TraceAbstraction took 3628.60 ms. Allocated memory was 231.2 MB in the beginning and 308.3 MB in the end (delta: 77.1 MB). Free memory was 127.0 MB in the beginning and 269.4 MB in the end (delta: -142.5 MB). Peak memory consumption was 70.1 MB. Max. memory is 7.1 GB. [2020-09-18 02:43:22,836 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 137.9 MB. Free memory was 119.4 MB in the beginning and 119.2 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1668.52 ms. Allocated memory was 137.9 MB in the beginning and 231.2 MB in the end (delta: 93.3 MB). Free memory was 97.6 MB in the beginning and 172.4 MB in the end (delta: -74.8 MB). Peak memory consumption was 81.9 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 192.62 ms. Allocated memory is still 231.2 MB. Free memory was 172.4 MB in the beginning and 167.9 MB in the end (delta: 4.5 MB). Peak memory consumption was 4.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 106.84 ms. Allocated memory is still 231.2 MB. Free memory was 167.9 MB in the beginning and 166.4 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 813.93 ms. Allocated memory is still 231.2 MB. Free memory was 166.4 MB in the beginning and 127.0 MB in the end (delta: 39.5 MB). Peak memory consumption was 39.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3628.60 ms. Allocated memory was 231.2 MB in the beginning and 308.3 MB in the end (delta: 77.1 MB). Free memory was 127.0 MB in the beginning and 269.4 MB in the end (delta: -142.5 MB). Peak memory consumption was 70.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 2.9s, 82 ProgramPointsBefore, 16 ProgramPointsAfterwards, 84 TransitionsBefore, 14 TransitionsAfterwards, 392 CoEnabledTransitionPairs, 8 FixpointIterations, 65 TrivialSequentialCompositions, 25 ConcurrentSequentialCompositions, 4 TrivialYvCompositions, 8 ConcurrentYvCompositions, 4 ChoiceCompositions, 207 VarBasedMoverChecksPositive, 0 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 293 CheckedPairsTotal, 102 TotalNumberOfCompositions - 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. VerificationResult: SAFE, OverallTime: 3.4s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.0s, HoareTripleCheckerStatistics: 9 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=21occurred 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, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, 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...