/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-SemanticLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/goblint-regression/28-race_reach_45-escape_racing.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-7cd14b8b9f04096d8ddfd3d9cd8a4ac590fe5404-7cd14b8 [2021-03-11 13:10:40,026 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-11 13:10:40,027 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-11 13:10:40,046 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-03-11 13:10:40,046 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-03-11 13:10:40,047 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-03-11 13:10:40,048 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-03-11 13:10:40,049 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-03-11 13:10:40,050 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-03-11 13:10:40,050 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-03-11 13:10:40,051 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-03-11 13:10:40,052 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-03-11 13:10:40,052 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-11 13:10:40,053 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-11 13:10:40,053 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-11 13:10:40,054 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-11 13:10:40,054 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-11 13:10:40,055 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-11 13:10:40,056 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-11 13:10:40,057 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-11 13:10:40,058 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-11 13:10:40,060 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-11 13:10:40,061 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-11 13:10:40,061 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-11 13:10:40,063 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-03-11 13:10:40,065 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-03-11 13:10:40,066 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-03-11 13:10:40,066 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-03-11 13:10:40,067 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-03-11 13:10:40,067 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-03-11 13:10:40,068 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-03-11 13:10:40,068 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-03-11 13:10:40,069 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-03-11 13:10:40,069 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-11 13:10:40,069 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-11 13:10:40,070 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-11 13:10:40,079 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-SemanticLbe.epf [2021-03-11 13:10:40,116 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-11 13:10:40,116 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-11 13:10:40,117 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-11 13:10:40,117 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-11 13:10:40,118 INFO L138 SettingsManager]: * Use SBE=true [2021-03-11 13:10:40,118 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-11 13:10:40,118 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-11 13:10:40,118 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-11 13:10:40,118 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-11 13:10:40,118 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-11 13:10:40,118 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-11 13:10:40,118 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-11 13:10:40,118 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-11 13:10:40,118 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-11 13:10:40,119 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-11 13:10:40,119 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-11 13:10:40,119 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-11 13:10:40,119 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-11 13:10:40,119 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-11 13:10:40,119 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-11 13:10:40,119 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-11 13:10:40,119 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-11 13:10:40,119 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-11 13:10:40,119 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-11 13:10:40,120 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-11 13:10:40,120 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-11 13:10:40,120 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-11 13:10:40,120 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-03-11 13:10:40,120 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-11 13:10:40,339 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-11 13:10:40,352 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-11 13:10:40,354 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-11 13:10:40,354 INFO L271 PluginConnector]: Initializing CDTParser... [2021-03-11 13:10:40,355 INFO L275 PluginConnector]: CDTParser initialized [2021-03-11 13:10:40,355 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/28-race_reach_45-escape_racing.i [2021-03-11 13:10:40,395 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2b6261bdc/630be856ed7a4910888b5d546f0743e6/FLAGea7f14e1f [2021-03-11 13:10:40,805 INFO L306 CDTParser]: Found 1 translation units. [2021-03-11 13:10:40,805 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_45-escape_racing.i [2021-03-11 13:10:40,817 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2b6261bdc/630be856ed7a4910888b5d546f0743e6/FLAGea7f14e1f [2021-03-11 13:10:40,826 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2b6261bdc/630be856ed7a4910888b5d546f0743e6 [2021-03-11 13:10:40,828 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-11 13:10:40,834 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-03-11 13:10:40,835 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-03-11 13:10:40,835 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-03-11 13:10:40,837 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-03-11 13:10:40,837 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.03 01:10:40" (1/1) ... [2021-03-11 13:10:40,838 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5a8f4526 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 01:10:40, skipping insertion in model container [2021-03-11 13:10:40,838 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.03 01:10:40" (1/1) ... [2021-03-11 13:10:40,845 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-03-11 13:10:40,865 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-03-11 13:10:41,081 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_45-escape_racing.i[29913,29926] [2021-03-11 13:10:41,100 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-11 13:10:41,109 INFO L203 MainTranslator]: Completed pre-run [2021-03-11 13:10:41,141 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_45-escape_racing.i[29913,29926] [2021-03-11 13:10:41,151 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-11 13:10:41,205 INFO L208 MainTranslator]: Completed translation [2021-03-11 13:10:41,205 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 01:10:41 WrapperNode [2021-03-11 13:10:41,206 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-03-11 13:10:41,206 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-11 13:10:41,206 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-11 13:10:41,206 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-11 13:10:41,211 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 01:10:41" (1/1) ... [2021-03-11 13:10:41,234 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 01:10:41" (1/1) ... [2021-03-11 13:10:41,246 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-11 13:10:41,246 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-11 13:10:41,246 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-11 13:10:41,246 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-11 13:10:41,252 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 01:10:41" (1/1) ... [2021-03-11 13:10:41,252 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 01:10:41" (1/1) ... [2021-03-11 13:10:41,253 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 01:10:41" (1/1) ... [2021-03-11 13:10:41,254 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 01:10:41" (1/1) ... [2021-03-11 13:10:41,256 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 01:10:41" (1/1) ... [2021-03-11 13:10:41,259 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 01:10:41" (1/1) ... [2021-03-11 13:10:41,260 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 01:10:41" (1/1) ... [2021-03-11 13:10:41,261 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-11 13:10:41,262 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-11 13:10:41,262 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-11 13:10:41,262 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-11 13:10:41,263 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 01:10:41" (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 [2021-03-11 13:10:41,309 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-03-11 13:10:41,309 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-03-11 13:10:41,309 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-03-11 13:10:41,309 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-03-11 13:10:41,310 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2021-03-11 13:10:41,310 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2021-03-11 13:10:41,310 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-03-11 13:10:41,310 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-03-11 13:10:41,310 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-11 13:10:41,310 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-11 13:10:41,311 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-03-11 13:10:41,556 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-11 13:10:41,556 INFO L299 CfgBuilder]: Removed 14 assume(true) statements. [2021-03-11 13:10:41,557 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.03 01:10:41 BoogieIcfgContainer [2021-03-11 13:10:41,557 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-11 13:10:41,558 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-11 13:10:41,559 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-11 13:10:41,560 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-11 13:10:41,561 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.03 01:10:40" (1/3) ... [2021-03-11 13:10:41,561 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@263df1d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.03 01:10:41, skipping insertion in model container [2021-03-11 13:10:41,561 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 01:10:41" (2/3) ... [2021-03-11 13:10:41,561 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@263df1d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.03 01:10:41, skipping insertion in model container [2021-03-11 13:10:41,561 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.03 01:10:41" (3/3) ... [2021-03-11 13:10:41,562 INFO L111 eAbstractionObserver]: Analyzing ICFG 28-race_reach_45-escape_racing.i [2021-03-11 13:10:41,566 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-03-11 13:10:41,566 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-11 13:10:41,568 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-03-11 13:10:41,569 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-11 13:10:41,586 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 13:10:41,587 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 13:10:41,587 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 13:10:41,587 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 13:10:41,587 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 13:10:41,587 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 13:10:41,587 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 13:10:41,588 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 13:10:41,588 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 13:10:41,588 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 13:10:41,588 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 13:10:41,588 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 13:10:41,588 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 13:10:41,588 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 13:10:41,588 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 13:10:41,589 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 13:10:41,589 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 13:10:41,589 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 13:10:41,589 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 13:10:41,589 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 13:10:41,589 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 13:10:41,589 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 13:10:41,590 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 13:10:41,590 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 13:10:41,590 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 13:10:41,590 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 13:10:41,590 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 13:10:41,590 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 13:10:41,591 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 13:10:41,591 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 13:10:41,591 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 13:10:41,591 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 13:10:41,591 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 13:10:41,591 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 13:10:41,591 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 13:10:41,591 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 13:10:41,591 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 13:10:41,592 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 13:10:41,592 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 13:10:41,592 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 13:10:41,592 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 13:10:41,592 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 13:10:41,592 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 13:10:41,592 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 13:10:41,592 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 13:10:41,593 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 13:10:41,593 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 13:10:41,593 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 13:10:41,593 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 13:10:41,593 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 13:10:41,593 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 13:10:41,593 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 13:10:41,593 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 13:10:41,593 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 13:10:41,593 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 13:10:41,594 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 13:10:41,594 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 13:10:41,594 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 13:10:41,594 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 13:10:41,594 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 13:10:41,594 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 13:10:41,594 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 13:10:41,594 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 13:10:41,594 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 13:10:41,594 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 13:10:41,594 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 13:10:41,595 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 13:10:41,595 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 13:10:41,595 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 13:10:41,595 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 13:10:41,595 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 13:10:41,595 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 13:10:41,597 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 13:10:41,597 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 13:10:41,597 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 13:10:41,597 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 13:10:41,597 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 13:10:41,597 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 13:10:41,597 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 13:10:41,597 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 13:10:41,598 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 13:10:41,598 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 13:10:41,598 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 13:10:41,598 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 13:10:41,598 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 13:10:41,603 INFO L149 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2021-03-11 13:10:41,613 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-03-11 13:10:41,625 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-11 13:10:41,625 INFO L377 AbstractCegarLoop]: Hoare is true [2021-03-11 13:10:41,625 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-11 13:10:41,625 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-11 13:10:41,625 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-11 13:10:41,625 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-11 13:10:41,625 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-11 13:10:41,625 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-11 13:10:41,633 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-11 13:10:41,639 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 91 places, 96 transitions, 200 flow [2021-03-11 13:10:41,644 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 91 places, 96 transitions, 200 flow [2021-03-11 13:10:41,646 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 91 places, 96 transitions, 200 flow [2021-03-11 13:10:41,681 INFO L129 PetriNetUnfolder]: 9/95 cut-off events. [2021-03-11 13:10:41,681 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-03-11 13:10:41,684 INFO L84 FinitePrefix]: Finished finitePrefix Result has 100 conditions, 95 events. 9/95 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 144 event pairs, 0 based on Foata normal form. 0/85 useless extension candidates. Maximal degree in co-relation 54. Up to 3 conditions per place. [2021-03-11 13:10:41,685 INFO L116 LiptonReduction]: Number of co-enabled transitions 1386 [2021-03-11 13:10:44,512 WARN L205 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 111 [2021-03-11 13:10:44,624 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2021-03-11 13:10:44,898 WARN L205 SmtUtils]: Spent 272.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 111 [2021-03-11 13:10:45,011 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2021-03-11 13:10:45,512 WARN L205 SmtUtils]: Spent 498.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 144 [2021-03-11 13:10:45,733 WARN L205 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 140 [2021-03-11 13:10:46,253 WARN L205 SmtUtils]: Spent 518.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 144 [2021-03-11 13:10:46,513 WARN L205 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 140 [2021-03-11 13:10:46,517 INFO L131 LiptonReduction]: Checked pairs total: 2752 [2021-03-11 13:10:46,517 INFO L133 LiptonReduction]: Total number of compositions: 85 [2021-03-11 13:10:46,522 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 25 places, 30 transitions, 68 flow [2021-03-11 13:10:46,529 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 84 states, 82 states have (on average 2.731707317073171) internal successors, (224), 83 states have internal predecessors, (224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 13:10:46,530 INFO L276 IsEmpty]: Start isEmpty. Operand has 84 states, 82 states have (on average 2.731707317073171) internal successors, (224), 83 states have internal predecessors, (224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 13:10:46,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-03-11 13:10:46,533 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 13:10:46,533 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-03-11 13:10:46,533 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 13:10:46,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 13:10:46,536 INFO L82 PathProgramCache]: Analyzing trace with hash 356226446, now seen corresponding path program 1 times [2021-03-11 13:10:46,541 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 13:10:46,541 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1712904955] [2021-03-11 13:10:46,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 13:10:46,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 13:10:46,658 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 13:10:46,658 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 13:10:46,664 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 13:10:46,664 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1712904955] [2021-03-11 13:10:46,665 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 13:10:46,665 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-03-11 13:10:46,665 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [691268653] [2021-03-11 13:10:46,667 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-11 13:10:46,668 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 13:10:46,675 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-11 13:10:46,675 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-11 13:10:46,677 INFO L87 Difference]: Start difference. First operand has 84 states, 82 states have (on average 2.731707317073171) internal successors, (224), 83 states have internal predecessors, (224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 13:10:46,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 13:10:46,710 INFO L93 Difference]: Finished difference Result 105 states and 178 transitions. [2021-03-11 13:10:46,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-11 13:10:46,711 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2021-03-11 13:10:46,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 13:10:46,716 INFO L225 Difference]: With dead ends: 105 [2021-03-11 13:10:46,716 INFO L226 Difference]: Without dead ends: 38 [2021-03-11 13:10:46,716 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.7ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-11 13:10:46,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2021-03-11 13:10:46,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2021-03-11 13:10:46,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 37 states have (on average 1.6216216216216217) internal successors, (60), 37 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 13:10:46,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 60 transitions. [2021-03-11 13:10:46,735 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 60 transitions. Word has length 5 [2021-03-11 13:10:46,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 13:10:46,735 INFO L480 AbstractCegarLoop]: Abstraction has 38 states and 60 transitions. [2021-03-11 13:10:46,735 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 13:10:46,735 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 60 transitions. [2021-03-11 13:10:46,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-03-11 13:10:46,735 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 13:10:46,735 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 13:10:46,736 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-11 13:10:46,736 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 13:10:46,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 13:10:46,736 INFO L82 PathProgramCache]: Analyzing trace with hash -532030504, now seen corresponding path program 1 times [2021-03-11 13:10:46,736 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 13:10:46,736 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1871121388] [2021-03-11 13:10:46,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 13:10:46,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 13:10:46,792 INFO L142 QuantifierPusher]: treesize reduction 13, result has 64.9 percent of original size [2021-03-11 13:10:46,797 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-11 13:10:46,810 INFO L142 QuantifierPusher]: treesize reduction 13, result has 78.7 percent of original size [2021-03-11 13:10:46,812 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-03-11 13:10:46,838 INFO L142 QuantifierPusher]: treesize reduction 14, result has 33.3 percent of original size [2021-03-11 13:10:46,839 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 13:10:46,846 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 13:10:46,847 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 13:10:46,847 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 13:10:46,848 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1871121388] [2021-03-11 13:10:46,848 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 13:10:46,848 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-11 13:10:46,848 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1045390871] [2021-03-11 13:10:46,855 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-11 13:10:46,855 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 13:10:46,856 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-11 13:10:46,856 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-03-11 13:10:46,856 INFO L87 Difference]: Start difference. First operand 38 states and 60 transitions. Second operand has 5 states, 5 states have (on average 1.8) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 13:10:46,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 13:10:46,909 INFO L93 Difference]: Finished difference Result 33 states and 44 transitions. [2021-03-11 13:10:46,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-11 13:10:46,910 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.8) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2021-03-11 13:10:46,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 13:10:46,910 INFO L225 Difference]: With dead ends: 33 [2021-03-11 13:10:46,910 INFO L226 Difference]: Without dead ends: 30 [2021-03-11 13:10:46,911 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 49.1ms TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-03-11 13:10:46,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2021-03-11 13:10:46,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 28. [2021-03-11 13:10:46,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 26 states have (on average 1.4615384615384615) internal successors, (38), 27 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 13:10:46,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 38 transitions. [2021-03-11 13:10:46,913 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 38 transitions. Word has length 9 [2021-03-11 13:10:46,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 13:10:46,913 INFO L480 AbstractCegarLoop]: Abstraction has 28 states and 38 transitions. [2021-03-11 13:10:46,913 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 1.8) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 13:10:46,913 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 38 transitions. [2021-03-11 13:10:46,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-03-11 13:10:46,914 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 13:10:46,914 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 13:10:46,914 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-11 13:10:46,914 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 13:10:46,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 13:10:46,914 INFO L82 PathProgramCache]: Analyzing trace with hash 686940290, now seen corresponding path program 1 times [2021-03-11 13:10:46,914 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 13:10:46,915 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2012598469] [2021-03-11 13:10:46,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 13:10:46,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-11 13:10:46,933 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-11 13:10:46,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-11 13:10:46,957 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-11 13:10:46,984 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-03-11 13:10:46,984 INFO L620 BasicCegarLoop]: Counterexample might be feasible [2021-03-11 13:10:46,984 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-03-11 13:10:47,014 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.03 01:10:47 BasicIcfg [2021-03-11 13:10:47,014 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-11 13:10:47,015 INFO L168 Benchmark]: Toolchain (without parser) took 6185.32 ms. Allocated memory was 255.9 MB in the beginning and 434.1 MB in the end (delta: 178.3 MB). Free memory was 234.6 MB in the beginning and 348.0 MB in the end (delta: -113.4 MB). Peak memory consumption was 63.4 MB. Max. memory is 16.0 GB. [2021-03-11 13:10:47,015 INFO L168 Benchmark]: CDTParser took 0.09 ms. Allocated memory is still 255.9 MB. Free memory is still 237.7 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-03-11 13:10:47,015 INFO L168 Benchmark]: CACSL2BoogieTranslator took 371.16 ms. Allocated memory was 255.9 MB in the beginning and 360.7 MB in the end (delta: 104.9 MB). Free memory was 234.0 MB in the beginning and 323.4 MB in the end (delta: -89.4 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.0 GB. [2021-03-11 13:10:47,016 INFO L168 Benchmark]: Boogie Procedure Inliner took 39.68 ms. Allocated memory is still 360.7 MB. Free memory was 323.4 MB in the beginning and 322.0 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-11 13:10:47,016 INFO L168 Benchmark]: Boogie Preprocessor took 15.15 ms. Allocated memory is still 360.7 MB. Free memory was 322.0 MB in the beginning and 320.7 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-11 13:10:47,016 INFO L168 Benchmark]: RCFGBuilder took 295.53 ms. Allocated memory is still 360.7 MB. Free memory was 319.9 MB in the beginning and 294.8 MB in the end (delta: 25.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.0 GB. [2021-03-11 13:10:47,017 INFO L168 Benchmark]: TraceAbstraction took 5455.47 ms. Allocated memory was 360.7 MB in the beginning and 434.1 MB in the end (delta: 73.4 MB). Free memory was 294.0 MB in the beginning and 348.0 MB in the end (delta: -53.9 MB). Peak memory consumption was 20.9 MB. Max. memory is 16.0 GB. [2021-03-11 13:10:47,019 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09 ms. Allocated memory is still 255.9 MB. Free memory is still 237.7 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 371.16 ms. Allocated memory was 255.9 MB in the beginning and 360.7 MB in the end (delta: 104.9 MB). Free memory was 234.0 MB in the beginning and 323.4 MB in the end (delta: -89.4 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 39.68 ms. Allocated memory is still 360.7 MB. Free memory was 323.4 MB in the beginning and 322.0 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 15.15 ms. Allocated memory is still 360.7 MB. Free memory was 322.0 MB in the beginning and 320.7 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.0 GB. * RCFGBuilder took 295.53 ms. Allocated memory is still 360.7 MB. Free memory was 319.9 MB in the beginning and 294.8 MB in the end (delta: 25.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.0 GB. * TraceAbstraction took 5455.47 ms. Allocated memory was 360.7 MB in the beginning and 434.1 MB in the end (delta: 73.4 MB). Free memory was 294.0 MB in the beginning and 348.0 MB in the end (delta: -53.9 MB). Peak memory consumption was 20.9 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4872.3ms, 91 PlacesBefore, 25 PlacesAfterwards, 96 TransitionsBefore, 30 TransitionsAfterwards, 1386 CoEnabledTransitionPairs, 7 FixpointIterations, 37 TrivialSequentialCompositions, 39 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 9 ConcurrentYvCompositions, 0 ChoiceCompositions, 85 TotalNumberOfCompositions, 2752 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1581, positive: 1463, positive conditional: 0, positive unconditional: 1463, negative: 118, negative conditional: 0, negative unconditional: 118, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1011, positive: 980, positive conditional: 0, positive unconditional: 980, negative: 31, negative conditional: 0, negative unconditional: 31, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1011, positive: 909, positive conditional: 0, positive unconditional: 909, negative: 102, negative conditional: 0, negative unconditional: 102, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 102, positive: 71, positive conditional: 0, positive unconditional: 71, negative: 31, negative conditional: 0, negative unconditional: 31, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 206, positive: 102, positive conditional: 0, positive unconditional: 102, negative: 104, negative conditional: 0, negative unconditional: 104, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1581, positive: 483, positive conditional: 0, positive unconditional: 483, negative: 87, negative conditional: 0, negative unconditional: 87, unknown: 1011, unknown conditional: 0, unknown unconditional: 1011] , Statistics on independence cache: Total cache size (in pairs): 92, Positive cache size: 80, Positive conditional cache size: 0, Positive unconditional cache size: 80, Negative cache size: 12, Negative conditional cache size: 0, Negative unconditional cache size: 12 - CounterExampleResult [Line: 684]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L689] 0 pthread_mutex_t __global_lock = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; [L690] 0 pthread_mutex_t mutex1 = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; [L691] 0 pthread_mutex_t mutex2 = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; [L700] 0 pthread_t id; [L701] 0 int i = 0; [L702] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, (void *) &i) VAL [__global_lock={3:0}, arg={7:0}, mutex1={11:0}, mutex2={6:0}] [L693] 1 int *p = (int *) arg; [L695] EXPR 1 \read(*p) [L695] 1 (*p)++ [L704] 0 \read(i) [L684] COND TRUE 0 !(cond) [L684] 0 reach_error() VAL [__global_lock={3:0}, arg={7:0}, arg={7:0}, mutex1={11:0}, mutex2={6:0}, p={7:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 88 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 5361.5ms, OverallIterations: 3, TraceHistogramMax: 1, EmptinessCheckTime: 4.4ms, AutomataDifference: 104.2ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 4903.5ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 27 SDtfs, 28 SDslu, 14 SDs, 0 SdLazy, 37 SolverSat, 13 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 42.6ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 53.8ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=84occurred in iteration=0, InterpolantAutomatonStates: 7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 12.2ms AutomataMinimizationTime, 2 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 5.7ms SsaConstructionTime, 51.4ms SatisfiabilityAnalysisTime, 143.9ms InterpolantComputationTime, 24 NumberOfCodeBlocks, 24 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 12 ConstructedInterpolants, 0 QuantifiedInterpolants, 74 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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...