/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc config/AutomizerReach.xml -s config/svcomp-Reach-64bit-Automizer_Default.epf -i ../sv-benchmarks/c/goblint-regression/28-race_reach_45-escape_racing.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-4f750a8 [2020-12-22 11:31:07,807 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-22 11:31:07,810 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-22 11:31:07,868 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-22 11:31:07,869 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-22 11:31:07,874 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-22 11:31:07,877 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-22 11:31:07,885 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-22 11:31:07,889 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-22 11:31:07,897 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-22 11:31:07,898 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-22 11:31:07,900 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-22 11:31:07,900 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-22 11:31:07,903 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-22 11:31:07,905 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-22 11:31:07,907 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-22 11:31:07,921 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-22 11:31:07,922 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-22 11:31:07,930 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-22 11:31:07,938 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-22 11:31:07,943 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-22 11:31:07,946 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-22 11:31:07,947 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-22 11:31:07,950 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-22 11:31:07,958 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-12-22 11:31:07,963 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-22 11:31:07,964 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-22 11:31:07,966 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-22 11:31:07,967 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-22 11:31:07,968 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-22 11:31:07,968 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-22 11:31:07,968 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-22 11:31:07,969 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-22 11:31:07,969 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-22 11:31:07,970 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-22 11:31:07,970 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-22 11:31:07,971 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-22 11:31:08,027 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-22 11:31:08,028 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-22 11:31:08,032 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-22 11:31:08,032 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-22 11:31:08,032 INFO L138 SettingsManager]: * Use SBE=true [2020-12-22 11:31:08,032 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-22 11:31:08,033 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-22 11:31:08,033 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-22 11:31:08,033 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-22 11:31:08,033 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-22 11:31:08,034 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-22 11:31:08,035 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-22 11:31:08,035 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-22 11:31:08,035 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-22 11:31:08,035 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-22 11:31:08,035 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-22 11:31:08,036 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-22 11:31:08,036 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 11:31:08,036 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-22 11:31:08,036 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-22 11:31:08,037 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-22 11:31:08,037 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-22 11:31:08,037 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-22 11:31:08,037 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-22 11:31:08,037 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-22 11:31:08,038 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-22 11:31:08,428 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-22 11:31:08,481 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-22 11:31:08,484 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-22 11:31:08,486 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-22 11:31:08,487 INFO L275 PluginConnector]: CDTParser initialized [2020-12-22 11:31:08,488 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/28-race_reach_45-escape_racing.i [2020-12-22 11:31:08,579 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/73fca74ae/8caeac9b75b04f04b186ec96bf4c73a3/FLAG47bd642ac [2020-12-22 11:31:09,467 INFO L306 CDTParser]: Found 1 translation units. [2020-12-22 11:31:09,475 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_45-escape_racing.i [2020-12-22 11:31:09,494 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/73fca74ae/8caeac9b75b04f04b186ec96bf4c73a3/FLAG47bd642ac [2020-12-22 11:31:09,695 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/73fca74ae/8caeac9b75b04f04b186ec96bf4c73a3 [2020-12-22 11:31:09,698 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-22 11:31:09,700 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-22 11:31:09,707 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-22 11:31:09,707 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-22 11:31:09,711 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-22 11:31:09,713 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 11:31:09" (1/1) ... [2020-12-22 11:31:09,716 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e2625b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:31:09, skipping insertion in model container [2020-12-22 11:31:09,716 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 11:31:09" (1/1) ... [2020-12-22 11:31:09,725 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-22 11:31:09,799 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-22 11:31:10,163 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_45-escape_racing.i[29913,29926] [2020-12-22 11:31:10,188 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 11:31:10,204 INFO L203 MainTranslator]: Completed pre-run [2020-12-22 11:31:10,243 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_45-escape_racing.i[29913,29926] [2020-12-22 11:31:10,251 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 11:31:10,376 INFO L208 MainTranslator]: Completed translation [2020-12-22 11:31:10,376 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:31:10 WrapperNode [2020-12-22 11:31:10,377 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-22 11:31:10,378 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-22 11:31:10,378 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-22 11:31:10,378 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-22 11:31:10,388 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:31:10" (1/1) ... [2020-12-22 11:31:10,405 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:31:10" (1/1) ... [2020-12-22 11:31:10,434 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-22 11:31:10,435 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-22 11:31:10,436 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-22 11:31:10,436 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-22 11:31:10,446 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:31:10" (1/1) ... [2020-12-22 11:31:10,447 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:31:10" (1/1) ... [2020-12-22 11:31:10,450 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:31:10" (1/1) ... [2020-12-22 11:31:10,451 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:31:10" (1/1) ... [2020-12-22 11:31:10,458 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:31:10" (1/1) ... [2020-12-22 11:31:10,464 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:31:10" (1/1) ... [2020-12-22 11:31:10,466 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:31:10" (1/1) ... [2020-12-22 11:31:10,470 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-22 11:31:10,471 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-22 11:31:10,471 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-22 11:31:10,471 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-22 11:31:10,472 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:31:10" (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 [2020-12-22 11:31:10,602 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-22 11:31:10,603 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-22 11:31:10,603 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2020-12-22 11:31:10,604 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-22 11:31:10,604 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2020-12-22 11:31:10,604 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2020-12-22 11:31:10,605 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-22 11:31:10,605 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-22 11:31:10,605 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-22 11:31:10,606 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-22 11:31:10,608 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-12-22 11:31:11,174 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-22 11:31:11,174 INFO L299 CfgBuilder]: Removed 14 assume(true) statements. [2020-12-22 11:31:11,176 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 11:31:11 BoogieIcfgContainer [2020-12-22 11:31:11,176 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-22 11:31:11,178 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-22 11:31:11,178 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-22 11:31:11,182 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-22 11:31:11,183 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 11:31:09" (1/3) ... [2020-12-22 11:31:11,184 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@214113f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 11:31:11, skipping insertion in model container [2020-12-22 11:31:11,184 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:31:10" (2/3) ... [2020-12-22 11:31:11,184 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@214113f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 11:31:11, skipping insertion in model container [2020-12-22 11:31:11,185 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 11:31:11" (3/3) ... [2020-12-22 11:31:11,186 INFO L111 eAbstractionObserver]: Analyzing ICFG 28-race_reach_45-escape_racing.i [2020-12-22 11:31:11,194 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-12-22 11:31:11,195 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-22 11:31:11,200 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-22 11:31:11,201 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-12-22 11:31:11,233 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:31:11,233 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:31:11,233 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:31:11,233 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:31:11,234 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:31:11,234 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:31:11,234 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:31:11,234 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:31:11,235 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:31:11,235 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:31:11,235 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:31:11,235 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:31:11,235 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:31:11,236 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:31:11,236 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:31:11,236 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:31:11,236 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:31:11,237 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:31:11,237 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:31:11,237 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:31:11,238 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:31:11,238 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:31:11,238 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:31:11,239 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:31:11,239 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:31:11,239 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:31:11,240 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:31:11,240 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:31:11,240 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:31:11,240 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:31:11,240 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:31:11,241 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:31:11,241 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:31:11,241 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:31:11,241 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:31:11,241 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:31:11,242 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:31:11,242 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:31:11,242 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:31:11,243 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:31:11,243 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:31:11,243 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:31:11,243 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:31:11,244 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:31:11,244 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:31:11,244 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:31:11,244 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:31:11,244 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:31:11,245 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:31:11,245 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:31:11,245 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:31:11,245 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:31:11,245 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:31:11,246 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:31:11,246 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:31:11,246 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:31:11,246 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:31:11,247 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:31:11,247 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:31:11,247 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:31:11,247 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:31:11,248 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:31:11,248 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:31:11,248 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:31:11,248 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:31:11,248 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:31:11,249 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:31:11,249 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:31:11,249 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:31:11,250 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:31:11,250 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:31:11,250 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:31:11,253 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:31:11,254 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:31:11,254 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:31:11,254 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:31:11,255 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:31:11,255 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:31:11,255 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:31:11,255 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:31:11,256 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:31:11,256 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:31:11,256 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:31:11,256 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:31:11,257 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:31:11,264 INFO L149 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2020-12-22 11:31:11,288 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2020-12-22 11:31:11,314 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-22 11:31:11,315 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-22 11:31:11,315 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-22 11:31:11,315 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-22 11:31:11,315 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-22 11:31:11,316 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-22 11:31:11,316 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-22 11:31:11,316 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-22 11:31:11,332 INFO L120 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-12-22 11:31:11,335 INFO L135 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 91 places, 96 transitions, 200 flow [2020-12-22 11:31:11,338 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 91 places, 96 transitions, 200 flow [2020-12-22 11:31:11,341 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 91 places, 96 transitions, 200 flow [2020-12-22 11:31:11,399 INFO L129 PetriNetUnfolder]: 9/95 cut-off events. [2020-12-22 11:31:11,399 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2020-12-22 11:31:11,405 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. [2020-12-22 11:31:11,409 INFO L116 LiptonReduction]: Number of co-enabled transitions 1386 [2020-12-22 11:31:15,035 WARN L197 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 73 [2020-12-22 11:31:15,346 WARN L197 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 55 [2020-12-22 11:31:15,561 WARN L197 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 55 [2020-12-22 11:31:16,158 WARN L197 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-12-22 11:31:16,342 WARN L197 SmtUtils]: Spent 181.00 ms on a formula simplification that was a NOOP. DAG size: 111 [2020-12-22 11:31:16,537 WARN L197 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-12-22 11:31:16,739 WARN L197 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 111 [2020-12-22 11:31:17,681 WARN L197 SmtUtils]: Spent 914.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 144 [2020-12-22 11:31:18,132 WARN L197 SmtUtils]: Spent 447.00 ms on a formula simplification that was a NOOP. DAG size: 140 [2020-12-22 11:31:19,001 WARN L197 SmtUtils]: Spent 866.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 144 [2020-12-22 11:31:19,393 WARN L197 SmtUtils]: Spent 388.00 ms on a formula simplification that was a NOOP. DAG size: 140 [2020-12-22 11:31:19,404 INFO L131 LiptonReduction]: Checked pairs total: 2553 [2020-12-22 11:31:19,404 INFO L133 LiptonReduction]: Total number of compositions: 86 [2020-12-22 11:31:19,412 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 25 places, 30 transitions, 68 flow [2020-12-22 11:31:19,426 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 84 states. [2020-12-22 11:31:19,428 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states. [2020-12-22 11:31:19,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-12-22 11:31:19,434 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:31:19,435 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-12-22 11:31:19,435 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:31:19,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:31:19,442 INFO L82 PathProgramCache]: Analyzing trace with hash 357147947, now seen corresponding path program 1 times [2020-12-22 11:31:19,452 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:31:19,453 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [361179231] [2020-12-22 11:31:19,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:31:19,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:31:19,734 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:31:19,734 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [361179231] [2020-12-22 11:31:19,736 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:31:19,736 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-12-22 11:31:19,737 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [942477932] [2020-12-22 11:31:19,742 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 11:31:19,743 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:31:19,762 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 11:31:19,765 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 11:31:19,767 INFO L87 Difference]: Start difference. First operand 84 states. Second operand 3 states. [2020-12-22 11:31:19,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:31:19,822 INFO L93 Difference]: Finished difference Result 105 states and 178 transitions. [2020-12-22 11:31:19,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 11:31:19,824 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2020-12-22 11:31:19,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:31:19,834 INFO L225 Difference]: With dead ends: 105 [2020-12-22 11:31:19,834 INFO L226 Difference]: Without dead ends: 38 [2020-12-22 11:31:19,836 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 11:31:19,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2020-12-22 11:31:19,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2020-12-22 11:31:19,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2020-12-22 11:31:19,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 60 transitions. [2020-12-22 11:31:19,892 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 60 transitions. Word has length 5 [2020-12-22 11:31:19,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:31:19,892 INFO L481 AbstractCegarLoop]: Abstraction has 38 states and 60 transitions. [2020-12-22 11:31:19,893 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 11:31:19,893 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 60 transitions. [2020-12-22 11:31:19,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-12-22 11:31:19,893 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:31:19,894 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:31:19,894 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-22 11:31:19,894 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:31:19,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:31:19,895 INFO L82 PathProgramCache]: Analyzing trace with hash 1631104881, now seen corresponding path program 1 times [2020-12-22 11:31:19,895 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:31:19,896 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1371500497] [2020-12-22 11:31:19,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:31:19,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:31:20,027 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:31:20,028 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1371500497] [2020-12-22 11:31:20,028 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:31:20,029 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 11:31:20,029 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1683210000] [2020-12-22 11:31:20,030 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 11:31:20,031 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:31:20,032 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 11:31:20,032 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-22 11:31:20,032 INFO L87 Difference]: Start difference. First operand 38 states and 60 transitions. Second operand 5 states. [2020-12-22 11:31:20,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:31:20,082 INFO L93 Difference]: Finished difference Result 31 states and 43 transitions. [2020-12-22 11:31:20,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-22 11:31:20,082 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2020-12-22 11:31:20,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:31:20,083 INFO L225 Difference]: With dead ends: 31 [2020-12-22 11:31:20,083 INFO L226 Difference]: Without dead ends: 28 [2020-12-22 11:31:20,084 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-22 11:31:20,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2020-12-22 11:31:20,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2020-12-22 11:31:20,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2020-12-22 11:31:20,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 38 transitions. [2020-12-22 11:31:20,089 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 38 transitions. Word has length 9 [2020-12-22 11:31:20,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:31:20,090 INFO L481 AbstractCegarLoop]: Abstraction has 28 states and 38 transitions. [2020-12-22 11:31:20,090 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 11:31:20,090 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 38 transitions. [2020-12-22 11:31:20,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-22 11:31:20,090 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:31:20,091 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:31:20,091 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-22 11:31:20,091 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:31:20,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:31:20,092 INFO L82 PathProgramCache]: Analyzing trace with hash -2051601264, now seen corresponding path program 1 times [2020-12-22 11:31:20,092 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:31:20,092 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2147340306] [2020-12-22 11:31:20,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:31:20,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-22 11:31:20,146 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-22 11:31:20,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-22 11:31:20,217 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-22 11:31:20,275 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-22 11:31:20,276 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-12-22 11:31:20,276 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-22 11:31:20,339 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.12 11:31:20 BasicIcfg [2020-12-22 11:31:20,340 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-22 11:31:20,341 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-22 11:31:20,341 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-22 11:31:20,341 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-22 11:31:20,342 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 11:31:11" (3/4) ... [2020-12-22 11:31:20,344 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-12-22 11:31:20,425 INFO L141 WitnessManager]: Wrote witness to /storage/repos/svcomp/c/goblint-regression/28-race_reach_45-escape_racing.i-witness.graphml [2020-12-22 11:31:20,425 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-22 11:31:20,427 INFO L168 Benchmark]: Toolchain (without parser) took 10726.41 ms. Allocated memory was 155.2 MB in the beginning and 230.7 MB in the end (delta: 75.5 MB). Free memory was 128.8 MB in the beginning and 182.0 MB in the end (delta: -53.2 MB). Peak memory consumption was 23.8 MB. Max. memory is 8.0 GB. [2020-12-22 11:31:20,427 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 155.2 MB. Free memory was 127.9 MB in the beginning and 127.8 MB in the end (delta: 89.1 kB). There was no memory consumed. Max. memory is 8.0 GB. [2020-12-22 11:31:20,428 INFO L168 Benchmark]: CACSL2BoogieTranslator took 670.57 ms. Allocated memory is still 155.2 MB. Free memory was 128.5 MB in the beginning and 132.2 MB in the end (delta: -3.7 MB). Peak memory consumption was 29.1 MB. Max. memory is 8.0 GB. [2020-12-22 11:31:20,429 INFO L168 Benchmark]: Boogie Procedure Inliner took 56.69 ms. Allocated memory is still 155.2 MB. Free memory was 132.2 MB in the beginning and 130.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-12-22 11:31:20,430 INFO L168 Benchmark]: Boogie Preprocessor took 34.61 ms. Allocated memory is still 155.2 MB. Free memory was 130.1 MB in the beginning and 128.6 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-12-22 11:31:20,431 INFO L168 Benchmark]: RCFGBuilder took 705.75 ms. Allocated memory is still 155.2 MB. Free memory was 128.6 MB in the beginning and 102.9 MB in the end (delta: 25.7 MB). Peak memory consumption was 25.2 MB. Max. memory is 8.0 GB. [2020-12-22 11:31:20,432 INFO L168 Benchmark]: TraceAbstraction took 9161.55 ms. Allocated memory was 155.2 MB in the beginning and 230.7 MB in the end (delta: 75.5 MB). Free memory was 102.4 MB in the beginning and 185.2 MB in the end (delta: -82.8 MB). There was no memory consumed. Max. memory is 8.0 GB. [2020-12-22 11:31:20,432 INFO L168 Benchmark]: Witness Printer took 84.44 ms. Allocated memory is still 230.7 MB. Free memory was 185.2 MB in the beginning and 182.0 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2020-12-22 11:31:20,437 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 155.2 MB. Free memory was 127.9 MB in the beginning and 127.8 MB in the end (delta: 89.1 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 670.57 ms. Allocated memory is still 155.2 MB. Free memory was 128.5 MB in the beginning and 132.2 MB in the end (delta: -3.7 MB). Peak memory consumption was 29.1 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 56.69 ms. Allocated memory is still 155.2 MB. Free memory was 132.2 MB in the beginning and 130.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 34.61 ms. Allocated memory is still 155.2 MB. Free memory was 130.1 MB in the beginning and 128.6 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 705.75 ms. Allocated memory is still 155.2 MB. Free memory was 128.6 MB in the beginning and 102.9 MB in the end (delta: 25.7 MB). Peak memory consumption was 25.2 MB. Max. memory is 8.0 GB. * TraceAbstraction took 9161.55 ms. Allocated memory was 155.2 MB in the beginning and 230.7 MB in the end (delta: 75.5 MB). Free memory was 102.4 MB in the beginning and 185.2 MB in the end (delta: -82.8 MB). There was no memory consumed. Max. memory is 8.0 GB. * Witness Printer took 84.44 ms. Allocated memory is still 230.7 MB. Free memory was 185.2 MB in the beginning and 182.0 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 902 VarBasedMoverChecksPositive, 121 VarBasedMoverChecksNegative, 87 SemBasedMoverChecksPositive, 34 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.6s, 100 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 8.0s, 91 PlacesBefore, 25 PlacesAfterwards, 96 TransitionsBefore, 30 TransitionsAfterwards, 1386 CoEnabledTransitionPairs, 6 FixpointIterations, 37 TrivialSequentialCompositions, 41 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 0 ChoiceCompositions, 86 TotalNumberOfCompositions, 2553 MoverChecksTotal - 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={11:0}, arg={5:0}, mutex1={3:0}, mutex2={9:0}] [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={11:0}, arg={5:0}, arg={5:0}, mutex1={3:0}, mutex2={9:0}, p={5:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 88 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 8.9s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 8.1s, HoareTripleCheckerStatistics: 29 SDtfs, 25 SDslu, 13 SDs, 0 SdLazy, 35 SolverSat, 11 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=84occurred 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, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 24 NumberOfCodeBlocks, 24 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 12 ConstructedInterpolants, 0 QuantifiedInterpolants, 496 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...