/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-WP.epf -i ../../../trunk/examples/svcomp/goblint-regression/28-race_reach_46-escape_racefree.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-7a177ad [2020-11-09 16:03:29,941 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-09 16:03:29,946 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-09 16:03:29,989 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-09 16:03:29,989 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-09 16:03:29,991 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-09 16:03:29,993 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-09 16:03:29,995 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-09 16:03:30,015 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-09 16:03:30,016 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-09 16:03:30,018 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-09 16:03:30,019 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-09 16:03:30,020 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-09 16:03:30,021 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-09 16:03:30,022 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-09 16:03:30,024 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-09 16:03:30,025 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-09 16:03:30,026 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-09 16:03:30,028 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-09 16:03:30,030 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-09 16:03:30,032 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-09 16:03:30,035 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-09 16:03:30,037 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-09 16:03:30,038 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-09 16:03:30,041 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-11-09 16:03:30,045 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-09 16:03:30,046 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-09 16:03:30,047 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-09 16:03:30,048 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-09 16:03:30,049 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-09 16:03:30,050 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-09 16:03:30,051 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-09 16:03:30,051 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-09 16:03:30,051 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-09 16:03:30,053 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-09 16:03:30,053 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-09 16:03:30,055 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-WP.epf [2020-11-09 16:03:30,083 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-09 16:03:30,083 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-09 16:03:30,085 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-09 16:03:30,085 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-09 16:03:30,086 INFO L138 SettingsManager]: * Use SBE=true [2020-11-09 16:03:30,086 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-09 16:03:30,086 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-09 16:03:30,086 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-09 16:03:30,087 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-09 16:03:30,087 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-09 16:03:30,087 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-09 16:03:30,087 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-09 16:03:30,087 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-09 16:03:30,088 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-09 16:03:30,088 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-09 16:03:30,088 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-09 16:03:30,088 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-09 16:03:30,088 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-09 16:03:30,089 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-09 16:03:30,089 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-09 16:03:30,089 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-09 16:03:30,089 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-09 16:03:30,090 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-09 16:03:30,090 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-11-09 16:03:30,090 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-09 16:03:30,090 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-09 16:03:30,090 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-09 16:03:30,091 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2020-11-09 16:03:30,091 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-11-09 16:03:30,091 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-09 16:03:30,091 INFO L138 SettingsManager]: * Interpolant automaton=MCR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-11-09 16:03:30,479 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-09 16:03:30,515 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-09 16:03:30,518 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-09 16:03:30,519 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-09 16:03:30,520 INFO L275 PluginConnector]: CDTParser initialized [2020-11-09 16:03:30,521 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/28-race_reach_46-escape_racefree.i [2020-11-09 16:03:30,610 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/af248c73b/fa9bae7f4b5f4a8bada72a6cbd97c88e/FLAG6c6170252 [2020-11-09 16:03:31,439 INFO L306 CDTParser]: Found 1 translation units. [2020-11-09 16:03:31,440 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_46-escape_racefree.i [2020-11-09 16:03:31,461 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/af248c73b/fa9bae7f4b5f4a8bada72a6cbd97c88e/FLAG6c6170252 [2020-11-09 16:03:31,682 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/af248c73b/fa9bae7f4b5f4a8bada72a6cbd97c88e [2020-11-09 16:03:31,692 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-09 16:03:31,702 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-11-09 16:03:31,706 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-09 16:03:31,706 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-09 16:03:31,710 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-09 16:03:31,711 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 04:03:31" (1/1) ... [2020-11-09 16:03:31,716 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@12681249 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:03:31, skipping insertion in model container [2020-11-09 16:03:31,716 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 04:03:31" (1/1) ... [2020-11-09 16:03:31,724 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-09 16:03:31,799 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-09 16:03:32,282 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-09 16:03:32,305 INFO L203 MainTranslator]: Completed pre-run [2020-11-09 16:03:32,413 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-09 16:03:32,561 INFO L208 MainTranslator]: Completed translation [2020-11-09 16:03:32,562 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:03:32 WrapperNode [2020-11-09 16:03:32,562 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-09 16:03:32,563 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-09 16:03:32,564 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-09 16:03:32,565 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-09 16:03:32,577 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:03:32" (1/1) ... [2020-11-09 16:03:32,620 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:03:32" (1/1) ... [2020-11-09 16:03:32,660 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-09 16:03:32,662 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-09 16:03:32,663 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-09 16:03:32,663 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-09 16:03:32,672 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:03:32" (1/1) ... [2020-11-09 16:03:32,672 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:03:32" (1/1) ... [2020-11-09 16:03:32,682 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:03:32" (1/1) ... [2020-11-09 16:03:32,683 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:03:32" (1/1) ... [2020-11-09 16:03:32,711 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:03:32" (1/1) ... [2020-11-09 16:03:32,716 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:03:32" (1/1) ... [2020-11-09 16:03:32,718 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:03:32" (1/1) ... [2020-11-09 16:03:32,721 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-09 16:03:32,722 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-09 16:03:32,723 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-09 16:03:32,723 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-09 16:03:32,724 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:03:32" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-09 16:03:32,806 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-09 16:03:32,806 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-09 16:03:32,806 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2020-11-09 16:03:32,807 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-09 16:03:32,807 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2020-11-09 16:03:32,807 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2020-11-09 16:03:32,807 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-09 16:03:32,807 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-09 16:03:32,807 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-09 16:03:32,808 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-09 16:03:32,810 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-11-09 16:03:33,348 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-09 16:03:33,348 INFO L298 CfgBuilder]: Removed 16 assume(true) statements. [2020-11-09 16:03:33,350 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 04:03:33 BoogieIcfgContainer [2020-11-09 16:03:33,350 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-09 16:03:33,352 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-09 16:03:33,352 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-09 16:03:33,356 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-09 16:03:33,356 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 04:03:31" (1/3) ... [2020-11-09 16:03:33,357 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a91fee4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 04:03:33, skipping insertion in model container [2020-11-09 16:03:33,357 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:03:32" (2/3) ... [2020-11-09 16:03:33,358 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a91fee4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 04:03:33, skipping insertion in model container [2020-11-09 16:03:33,358 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 04:03:33" (3/3) ... [2020-11-09 16:03:33,360 INFO L111 eAbstractionObserver]: Analyzing ICFG 28-race_reach_46-escape_racefree.i [2020-11-09 16:03:33,378 WARN L168 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-11-09 16:03:33,378 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-11-09 16:03:33,383 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-09 16:03:33,384 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-11-09 16:03:33,421 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:03:33,422 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:03:33,422 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:03:33,422 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:03:33,422 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:03:33,423 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:03:33,423 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:03:33,423 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:03:33,423 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:03:33,423 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:03:33,424 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:03:33,424 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:03:33,424 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:03:33,424 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:03:33,425 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:03:33,425 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:03:33,425 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:03:33,425 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:03:33,426 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:03:33,426 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:03:33,426 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:03:33,426 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:03:33,427 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:03:33,427 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:03:33,427 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:03:33,428 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:03:33,428 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:03:33,428 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:03:33,429 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:03:33,429 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:03:33,429 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:03:33,429 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:03:33,429 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:03:33,430 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:03:33,430 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:03:33,430 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:03:33,431 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:03:33,431 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:03:33,431 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:03:33,431 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:03:33,432 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:03:33,432 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:03:33,432 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:03:33,432 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:03:33,433 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:03:33,433 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:03:33,433 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:03:33,433 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:03:33,433 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:03:33,434 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:03:33,434 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:03:33,434 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:03:33,434 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:03:33,435 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:03:33,435 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:03:33,435 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:03:33,435 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:03:33,435 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:03:33,436 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:03:33,436 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:03:33,436 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:03:33,436 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:03:33,437 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:03:33,437 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:03:33,437 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:03:33,437 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:03:33,438 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:03:33,438 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:03:33,438 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:03:33,438 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:03:33,439 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:03:33,439 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:03:33,442 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:03:33,442 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:03:33,443 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:03:33,443 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:03:33,443 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:03:33,443 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:03:33,444 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:03:33,444 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:03:33,444 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:03:33,445 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:03:33,445 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:03:33,445 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:03:33,445 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:03:33,456 INFO L149 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2020-11-09 16:03:33,470 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2020-11-09 16:03:33,496 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-09 16:03:33,497 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-09 16:03:33,497 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-11-09 16:03:33,497 INFO L380 AbstractCegarLoop]: Backedges is MCR [2020-11-09 16:03:33,497 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-09 16:03:33,497 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-09 16:03:33,498 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-09 16:03:33,498 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-09 16:03:33,512 INFO L128 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2020-11-09 16:03:33,513 INFO L135 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 97 places, 103 transitions, 214 flow [2020-11-09 16:03:33,517 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 97 places, 103 transitions, 214 flow [2020-11-09 16:03:33,519 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 97 places, 103 transitions, 214 flow [2020-11-09 16:03:33,576 INFO L129 PetriNetUnfolder]: 10/102 cut-off events. [2020-11-09 16:03:33,577 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2020-11-09 16:03:33,583 INFO L84 FinitePrefix]: Finished finitePrefix Result has 107 conditions, 102 events. 10/102 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 157 event pairs, 0 based on Foata normal form. 0/91 useless extension candidates. Maximal degree in co-relation 58. Up to 3 conditions per place. [2020-11-09 16:03:33,589 INFO L116 LiptonReduction]: Number of co-enabled transitions 1650 [2020-11-09 16:03:34,275 WARN L194 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 25 [2020-11-09 16:03:37,277 WARN L194 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 74 [2020-11-09 16:03:37,602 WARN L194 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 74 [2020-11-09 16:03:38,145 WARN L194 SmtUtils]: Spent 314.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 94 [2020-11-09 16:03:38,301 WARN L194 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-11-09 16:03:38,645 WARN L194 SmtUtils]: Spent 341.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 94 [2020-11-09 16:03:38,819 WARN L194 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-11-09 16:03:39,899 WARN L194 SmtUtils]: Spent 764.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 137 [2020-11-09 16:03:40,242 WARN L194 SmtUtils]: Spent 333.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-11-09 16:03:40,984 WARN L194 SmtUtils]: Spent 739.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 137 [2020-11-09 16:03:41,356 WARN L194 SmtUtils]: Spent 351.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-11-09 16:03:41,366 INFO L131 LiptonReduction]: Checked pairs total: 3209 [2020-11-09 16:03:41,366 INFO L133 LiptonReduction]: Total number of compositions: 90 [2020-11-09 16:03:41,373 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 25 places, 29 transitions, 66 flow [2020-11-09 16:03:41,385 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 84 states. [2020-11-09 16:03:41,387 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states. [2020-11-09 16:03:41,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-11-09 16:03:41,393 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 16:03:41,394 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-11-09 16:03:41,394 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 16:03:41,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 16:03:41,400 INFO L82 PathProgramCache]: Analyzing trace with hash 378015944, now seen corresponding path program 1 times [2020-11-09 16:03:41,419 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 16:03:41,419 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1048705244] [2020-11-09 16:03:41,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 16:03:41,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 16:03:41,750 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 16:03:41,751 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1048705244] [2020-11-09 16:03:41,752 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 16:03:41,752 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-11-09 16:03:41,754 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1717523873] [2020-11-09 16:03:41,755 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 16:03:41,762 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 16:03:41,775 INFO L252 McrAutomatonBuilder]: Finished intersection with 6 states and 5 transitions. [2020-11-09 16:03:41,776 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 16:03:41,784 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 16:03:41,785 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-09 16:03:41,786 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 16:03:41,805 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-09 16:03:41,805 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-09 16:03:41,807 INFO L87 Difference]: Start difference. First operand 84 states. Second operand 3 states. [2020-11-09 16:03:41,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 16:03:41,880 INFO L93 Difference]: Finished difference Result 105 states and 178 transitions. [2020-11-09 16:03:41,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-09 16:03:41,884 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2020-11-09 16:03:41,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 16:03:41,895 INFO L225 Difference]: With dead ends: 105 [2020-11-09 16:03:41,895 INFO L226 Difference]: Without dead ends: 38 [2020-11-09 16:03:41,896 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 [2020-11-09 16:03:41,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2020-11-09 16:03:41,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2020-11-09 16:03:41,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2020-11-09 16:03:41,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 60 transitions. [2020-11-09 16:03:41,948 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 60 transitions. Word has length 5 [2020-11-09 16:03:41,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 16:03:41,950 INFO L481 AbstractCegarLoop]: Abstraction has 38 states and 60 transitions. [2020-11-09 16:03:41,950 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-09 16:03:41,950 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 60 transitions. [2020-11-09 16:03:41,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-09 16:03:41,952 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 16:03:41,953 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 16:03:41,953 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-09 16:03:41,953 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 16:03:41,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 16:03:41,962 INFO L82 PathProgramCache]: Analyzing trace with hash -1573707980, now seen corresponding path program 1 times [2020-11-09 16:03:41,963 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 16:03:41,964 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [851450051] [2020-11-09 16:03:41,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 16:03:42,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 16:03:42,127 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 16:03:42,130 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [851450051] [2020-11-09 16:03:42,130 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 16:03:42,131 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-09 16:03:42,131 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1951996522] [2020-11-09 16:03:42,131 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 16:03:42,133 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 16:03:42,143 INFO L252 McrAutomatonBuilder]: Finished intersection with 12 states and 13 transitions. [2020-11-09 16:03:42,143 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 16:03:42,171 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 16:03:42,172 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-09 16:03:42,172 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 16:03:42,175 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-09 16:03:42,175 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-09 16:03:42,175 INFO L87 Difference]: Start difference. First operand 38 states and 60 transitions. Second operand 5 states. [2020-11-09 16:03:42,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 16:03:42,234 INFO L93 Difference]: Finished difference Result 17 states and 16 transitions. [2020-11-09 16:03:42,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-09 16:03:42,235 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2020-11-09 16:03:42,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 16:03:42,236 INFO L225 Difference]: With dead ends: 17 [2020-11-09 16:03:42,236 INFO L226 Difference]: Without dead ends: 15 [2020-11-09 16:03:42,237 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-09 16:03:42,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2020-11-09 16:03:42,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2020-11-09 16:03:42,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2020-11-09 16:03:42,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 14 transitions. [2020-11-09 16:03:42,242 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 14 transitions. Word has length 9 [2020-11-09 16:03:42,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 16:03:42,243 INFO L481 AbstractCegarLoop]: Abstraction has 15 states and 14 transitions. [2020-11-09 16:03:42,243 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-09 16:03:42,243 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 14 transitions. [2020-11-09 16:03:42,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-11-09 16:03:42,244 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 16:03:42,244 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 16:03:42,245 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-09 16:03:42,245 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 16:03:42,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 16:03:42,246 INFO L82 PathProgramCache]: Analyzing trace with hash -1335143805, now seen corresponding path program 1 times [2020-11-09 16:03:42,247 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 16:03:42,248 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [283917121] [2020-11-09 16:03:42,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 16:03:42,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 16:03:42,452 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 16:03:42,452 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [283917121] [2020-11-09 16:03:42,452 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 16:03:42,453 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-09 16:03:42,453 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1052455548] [2020-11-09 16:03:42,453 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 16:03:42,456 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 16:03:42,459 INFO L252 McrAutomatonBuilder]: Finished intersection with 15 states and 14 transitions. [2020-11-09 16:03:42,460 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 16:03:42,460 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 16:03:42,461 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-09 16:03:42,461 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 16:03:42,462 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-09 16:03:42,462 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-11-09 16:03:42,462 INFO L87 Difference]: Start difference. First operand 15 states and 14 transitions. Second operand 7 states. [2020-11-09 16:03:42,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 16:03:42,563 INFO L93 Difference]: Finished difference Result 14 states and 13 transitions. [2020-11-09 16:03:42,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-09 16:03:42,564 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 14 [2020-11-09 16:03:42,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 16:03:42,564 INFO L225 Difference]: With dead ends: 14 [2020-11-09 16:03:42,564 INFO L226 Difference]: Without dead ends: 0 [2020-11-09 16:03:42,565 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2020-11-09 16:03:42,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-09 16:03:42,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-09 16:03:42,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-09 16:03:42,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-09 16:03:42,566 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2020-11-09 16:03:42,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 16:03:42,566 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-09 16:03:42,566 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-11-09 16:03:42,566 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-09 16:03:42,566 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-09 16:03:42,567 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-09 16:03:42,570 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 04:03:42 BasicIcfg [2020-11-09 16:03:42,571 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-09 16:03:42,572 INFO L168 Benchmark]: Toolchain (without parser) took 10877.89 ms. Allocated memory was 151.0 MB in the beginning and 218.1 MB in the end (delta: 67.1 MB). Free memory was 125.1 MB in the beginning and 101.4 MB in the end (delta: 23.7 MB). Peak memory consumption was 92.3 MB. Max. memory is 8.0 GB. [2020-11-09 16:03:42,573 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 151.0 MB. Free memory is still 122.3 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-11-09 16:03:42,574 INFO L168 Benchmark]: CACSL2BoogieTranslator took 856.88 ms. Allocated memory is still 151.0 MB. Free memory was 124.5 MB in the beginning and 125.9 MB in the end (delta: -1.4 MB). Peak memory consumption was 27.0 MB. Max. memory is 8.0 GB. [2020-11-09 16:03:42,575 INFO L168 Benchmark]: Boogie Procedure Inliner took 97.23 ms. Allocated memory is still 151.0 MB. Free memory was 125.9 MB in the beginning and 124.3 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-11-09 16:03:42,576 INFO L168 Benchmark]: Boogie Preprocessor took 59.27 ms. Allocated memory is still 151.0 MB. Free memory was 124.3 MB in the beginning and 122.7 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-11-09 16:03:42,577 INFO L168 Benchmark]: RCFGBuilder took 628.15 ms. Allocated memory is still 151.0 MB. Free memory was 122.2 MB in the beginning and 96.5 MB in the end (delta: 25.7 MB). Peak memory consumption was 26.2 MB. Max. memory is 8.0 GB. [2020-11-09 16:03:42,578 INFO L168 Benchmark]: TraceAbstraction took 9218.47 ms. Allocated memory was 151.0 MB in the beginning and 218.1 MB in the end (delta: 67.1 MB). Free memory was 96.0 MB in the beginning and 101.4 MB in the end (delta: -5.5 MB). Peak memory consumption was 62.2 MB. Max. memory is 8.0 GB. [2020-11-09 16:03:42,582 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 151.0 MB. Free memory is still 122.3 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 856.88 ms. Allocated memory is still 151.0 MB. Free memory was 124.5 MB in the beginning and 125.9 MB in the end (delta: -1.4 MB). Peak memory consumption was 27.0 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 97.23 ms. Allocated memory is still 151.0 MB. Free memory was 125.9 MB in the beginning and 124.3 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 59.27 ms. Allocated memory is still 151.0 MB. Free memory was 124.3 MB in the beginning and 122.7 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 628.15 ms. Allocated memory is still 151.0 MB. Free memory was 122.2 MB in the beginning and 96.5 MB in the end (delta: 25.7 MB). Peak memory consumption was 26.2 MB. Max. memory is 8.0 GB. * TraceAbstraction took 9218.47 ms. Allocated memory was 151.0 MB in the beginning and 218.1 MB in the end (delta: 67.1 MB). Free memory was 96.0 MB in the beginning and 101.4 MB in the end (delta: -5.5 MB). Peak memory consumption was 62.2 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 909 VarBasedMoverChecksPositive, 40 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 59 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 7.8s, 97 PlacesBefore, 25 PlacesAfterwards, 103 TransitionsBefore, 29 TransitionsAfterwards, 1650 CoEnabledTransitionPairs, 6 FixpointIterations, 40 TrivialSequentialCompositions, 37 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 11 ConcurrentYvCompositions, 2 ChoiceCompositions, 90 TotalNumberOfCompositions, 3209 MoverChecksTotal - PositiveResult [Line: 683]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 94 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 9.0s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 7.8s, HoareTripleCheckerStatistics: 34 SDtfs, 34 SDslu, 28 SDs, 0 SdLazy, 46 SolverSat, 17 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s 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, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 28 NumberOfCodeBlocks, 28 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 25 ConstructedInterpolants, 0 QuantifiedInterpolants, 2216 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...