/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-SP.epf -i ../../../trunk/examples/svcomp/goblint-regression/28-race_reach_46-escape_racefree.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-7a177ad [2020-11-09 17:32:08,435 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-09 17:32:08,438 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-09 17:32:08,477 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-09 17:32:08,478 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-09 17:32:08,479 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-09 17:32:08,481 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-09 17:32:08,483 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-09 17:32:08,485 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-09 17:32:08,486 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-09 17:32:08,487 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-09 17:32:08,489 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-09 17:32:08,489 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-09 17:32:08,490 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-09 17:32:08,492 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-09 17:32:08,493 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-09 17:32:08,494 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-09 17:32:08,495 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-09 17:32:08,497 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-09 17:32:08,499 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-09 17:32:08,501 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-09 17:32:08,502 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-09 17:32:08,504 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-09 17:32:08,505 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-09 17:32:08,508 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-09 17:32:08,508 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-09 17:32:08,508 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-09 17:32:08,509 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-09 17:32:08,510 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-09 17:32:08,511 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-09 17:32:08,511 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-09 17:32:08,512 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-09 17:32:08,513 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-09 17:32:08,514 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-09 17:32:08,515 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-09 17:32:08,515 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-09 17:32:08,516 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-09 17:32:08,516 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-09 17:32:08,517 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-09 17:32:08,518 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-09 17:32:08,519 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-09 17:32:08,520 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-SP.epf [2020-11-09 17:32:08,553 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-09 17:32:08,554 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-09 17:32:08,556 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-09 17:32:08,557 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-09 17:32:08,557 INFO L138 SettingsManager]: * Use SBE=true [2020-11-09 17:32:08,558 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-09 17:32:08,558 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-09 17:32:08,558 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-09 17:32:08,561 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-09 17:32:08,561 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-09 17:32:08,561 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-09 17:32:08,561 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-09 17:32:08,562 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-09 17:32:08,562 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-09 17:32:08,562 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-09 17:32:08,562 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-09 17:32:08,562 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-09 17:32:08,563 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-09 17:32:08,563 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-09 17:32:08,564 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-09 17:32:08,564 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-09 17:32:08,564 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-09 17:32:08,564 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-09 17:32:08,565 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-11-09 17:32:08,565 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-09 17:32:08,565 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-09 17:32:08,565 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-09 17:32:08,565 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2020-11-09 17:32:08,566 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-11-09 17:32:08,566 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-09 17:32:08,566 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-11-09 17:32:08,970 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-09 17:32:08,997 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-09 17:32:09,000 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-09 17:32:09,001 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-09 17:32:09,002 INFO L275 PluginConnector]: CDTParser initialized [2020-11-09 17:32:09,003 INFO L432 ainManager$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 17:32:09,089 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/700b4c434/384a065bedea46c492827cfacf49d444/FLAG7498755f5 [2020-11-09 17:32:09,886 INFO L306 CDTParser]: Found 1 translation units. [2020-11-09 17:32:09,886 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_46-escape_racefree.i [2020-11-09 17:32:09,913 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/700b4c434/384a065bedea46c492827cfacf49d444/FLAG7498755f5 [2020-11-09 17:32:10,145 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/700b4c434/384a065bedea46c492827cfacf49d444 [2020-11-09 17:32:10,150 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-09 17:32:10,157 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-11-09 17:32:10,159 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-09 17:32:10,159 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-09 17:32:10,163 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-09 17:32:10,164 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 05:32:10" (1/1) ... [2020-11-09 17:32:10,167 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@53f6d8d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:32:10, skipping insertion in model container [2020-11-09 17:32:10,168 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 05:32:10" (1/1) ... [2020-11-09 17:32:10,176 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-09 17:32:10,218 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-09 17:32:10,681 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-09 17:32:10,705 INFO L203 MainTranslator]: Completed pre-run [2020-11-09 17:32:10,785 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-09 17:32:10,908 INFO L208 MainTranslator]: Completed translation [2020-11-09 17:32:10,909 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:32:10 WrapperNode [2020-11-09 17:32:10,909 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-09 17:32:10,910 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-09 17:32:10,910 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-09 17:32:10,910 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-09 17:32:10,920 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:32:10" (1/1) ... [2020-11-09 17:32:10,960 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:32:10" (1/1) ... [2020-11-09 17:32:11,017 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-09 17:32:11,020 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-09 17:32:11,020 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-09 17:32:11,020 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-09 17:32:11,029 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:32:10" (1/1) ... [2020-11-09 17:32:11,031 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:32:10" (1/1) ... [2020-11-09 17:32:11,040 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:32:10" (1/1) ... [2020-11-09 17:32:11,041 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:32:10" (1/1) ... [2020-11-09 17:32:11,062 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:32:10" (1/1) ... [2020-11-09 17:32:11,073 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:32:10" (1/1) ... [2020-11-09 17:32:11,080 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:32:10" (1/1) ... [2020-11-09 17:32:11,089 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-09 17:32:11,090 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-09 17:32:11,090 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-09 17:32:11,091 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-09 17:32:11,092 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:32:10" (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 [2020-11-09 17:32:11,165 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-09 17:32:11,165 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-09 17:32:11,165 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2020-11-09 17:32:11,165 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-09 17:32:11,166 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2020-11-09 17:32:11,166 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2020-11-09 17:32:11,166 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-09 17:32:11,166 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-09 17:32:11,166 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-09 17:32:11,167 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-09 17:32:11,168 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 17:32:11,689 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-09 17:32:11,689 INFO L298 CfgBuilder]: Removed 16 assume(true) statements. [2020-11-09 17:32:11,691 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:32:11 BoogieIcfgContainer [2020-11-09 17:32:11,691 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-09 17:32:11,693 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-09 17:32:11,693 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-09 17:32:11,697 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-09 17:32:11,697 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 05:32:10" (1/3) ... [2020-11-09 17:32:11,698 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5efd9cb4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 05:32:11, skipping insertion in model container [2020-11-09 17:32:11,698 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:32:10" (2/3) ... [2020-11-09 17:32:11,698 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5efd9cb4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 05:32:11, skipping insertion in model container [2020-11-09 17:32:11,699 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:32:11" (3/3) ... [2020-11-09 17:32:11,700 INFO L111 eAbstractionObserver]: Analyzing ICFG 28-race_reach_46-escape_racefree.i [2020-11-09 17:32:11,716 WARN L168 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-11-09 17:32:11,716 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-11-09 17:32:11,720 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-09 17:32:11,721 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-11-09 17:32:11,756 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:32:11,757 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:32:11,757 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:32:11,757 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:32:11,758 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:32:11,758 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:32:11,758 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:32:11,758 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:32:11,758 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:32:11,759 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:32:11,759 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:32:11,759 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:32:11,759 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:32:11,760 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:32:11,760 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:32:11,760 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:32:11,760 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:32:11,760 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:32:11,761 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:32:11,761 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:32:11,761 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:32:11,762 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:32:11,762 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:32:11,762 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:32:11,762 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:32:11,763 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:32:11,763 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:32:11,763 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:32:11,764 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:32:11,764 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:32:11,764 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:32:11,764 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:32:11,765 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:32:11,765 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:32:11,765 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:32:11,765 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:32:11,765 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:32:11,766 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:32:11,766 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:32:11,766 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:32:11,766 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:32:11,767 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:32:11,767 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:32:11,767 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:32:11,767 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:32:11,768 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:32:11,768 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:32:11,768 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:32:11,768 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:32:11,768 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:32:11,769 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:32:11,769 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:32:11,769 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:32:11,769 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:32:11,770 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:32:11,770 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:32:11,770 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:32:11,770 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:32:11,770 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:32:11,771 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:32:11,771 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:32:11,771 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:32:11,771 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:32:11,772 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:32:11,772 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:32:11,772 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:32:11,772 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:32:11,772 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:32:11,773 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:32:11,773 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:32:11,773 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:32:11,773 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:32:11,776 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:32:11,776 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:32:11,776 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:32:11,777 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:32:11,777 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:32:11,777 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:32:11,777 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:32:11,778 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:32:11,778 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:32:11,778 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:32:11,778 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:32:11,779 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:32:11,779 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:32:11,793 INFO L149 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2020-11-09 17:32:11,806 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2020-11-09 17:32:11,829 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-09 17:32:11,830 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-09 17:32:11,830 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-11-09 17:32:11,830 INFO L380 AbstractCegarLoop]: Backedges is MCR [2020-11-09 17:32:11,830 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-09 17:32:11,830 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-09 17:32:11,831 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-09 17:32:11,831 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-09 17:32:11,844 INFO L128 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2020-11-09 17:32:11,845 INFO L135 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 97 places, 103 transitions, 214 flow [2020-11-09 17:32:11,848 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 97 places, 103 transitions, 214 flow [2020-11-09 17:32:11,850 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 97 places, 103 transitions, 214 flow [2020-11-09 17:32:11,901 INFO L129 PetriNetUnfolder]: 10/102 cut-off events. [2020-11-09 17:32:11,901 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2020-11-09 17:32:11,907 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 17:32:11,910 INFO L116 LiptonReduction]: Number of co-enabled transitions 1650 [2020-11-09 17:32:16,815 WARN L194 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2020-11-09 17:32:16,933 WARN L194 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2020-11-09 17:32:17,050 WARN L194 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2020-11-09 17:32:17,161 WARN L194 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2020-11-09 17:32:17,508 WARN L194 SmtUtils]: Spent 342.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 74 [2020-11-09 17:32:17,647 WARN L194 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2020-11-09 17:32:17,967 WARN L194 SmtUtils]: Spent 317.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 74 [2020-11-09 17:32:18,118 WARN L194 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2020-11-09 17:32:18,777 WARN L194 SmtUtils]: Spent 445.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 94 [2020-11-09 17:32:18,993 WARN L194 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-11-09 17:32:19,470 WARN L194 SmtUtils]: Spent 473.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 94 [2020-11-09 17:32:19,695 WARN L194 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-11-09 17:32:19,819 WARN L194 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 63 [2020-11-09 17:32:19,938 WARN L194 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 63 [2020-11-09 17:32:20,062 WARN L194 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 63 [2020-11-09 17:32:20,193 WARN L194 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 63 [2020-11-09 17:32:21,263 WARN L194 SmtUtils]: Spent 1.04 s on a formula simplification. DAG size of input: 141 DAG size of output: 137 [2020-11-09 17:32:21,714 WARN L194 SmtUtils]: Spent 443.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-11-09 17:32:22,768 WARN L194 SmtUtils]: Spent 1.05 s on a formula simplification. DAG size of input: 141 DAG size of output: 137 [2020-11-09 17:32:23,249 WARN L194 SmtUtils]: Spent 469.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-11-09 17:32:23,256 INFO L131 LiptonReduction]: Checked pairs total: 3209 [2020-11-09 17:32:23,256 INFO L133 LiptonReduction]: Total number of compositions: 90 [2020-11-09 17:32:23,262 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 25 places, 29 transitions, 66 flow [2020-11-09 17:32:23,275 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 84 states. [2020-11-09 17:32:23,278 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states. [2020-11-09 17:32:23,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-11-09 17:32:23,284 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 17:32:23,284 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-11-09 17:32:23,285 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 17:32:23,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 17:32:23,296 INFO L82 PathProgramCache]: Analyzing trace with hash 378015944, now seen corresponding path program 1 times [2020-11-09 17:32:23,319 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 17:32:23,320 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1473573393] [2020-11-09 17:32:23,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 17:32:23,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 17:32:23,637 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 17:32:23,638 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1473573393] [2020-11-09 17:32:23,638 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 17:32:23,639 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-11-09 17:32:23,639 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1396459939] [2020-11-09 17:32:23,640 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 17:32:23,643 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 17:32:23,656 INFO L252 McrAutomatonBuilder]: Finished intersection with 6 states and 5 transitions. [2020-11-09 17:32:23,656 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 17:32:23,660 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 17:32:23,661 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-09 17:32:23,661 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 17:32:23,676 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-09 17:32:23,677 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-09 17:32:23,678 INFO L87 Difference]: Start difference. First operand 84 states. Second operand 3 states. [2020-11-09 17:32:23,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 17:32:23,736 INFO L93 Difference]: Finished difference Result 105 states and 178 transitions. [2020-11-09 17:32:23,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-09 17:32:23,738 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2020-11-09 17:32:23,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 17:32:23,747 INFO L225 Difference]: With dead ends: 105 [2020-11-09 17:32:23,747 INFO L226 Difference]: Without dead ends: 38 [2020-11-09 17:32:23,748 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 17:32:23,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2020-11-09 17:32:23,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2020-11-09 17:32:23,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2020-11-09 17:32:23,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 60 transitions. [2020-11-09 17:32:23,787 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 60 transitions. Word has length 5 [2020-11-09 17:32:23,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 17:32:23,788 INFO L481 AbstractCegarLoop]: Abstraction has 38 states and 60 transitions. [2020-11-09 17:32:23,788 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-09 17:32:23,788 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 60 transitions. [2020-11-09 17:32:23,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-09 17:32:23,789 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 17:32:23,789 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 17:32:23,789 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-09 17:32:23,789 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 17:32:23,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 17:32:23,790 INFO L82 PathProgramCache]: Analyzing trace with hash -1573707980, now seen corresponding path program 1 times [2020-11-09 17:32:23,793 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 17:32:23,793 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1824650109] [2020-11-09 17:32:23,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 17:32:23,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 17:32:23,892 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 17:32:23,892 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1824650109] [2020-11-09 17:32:23,893 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 17:32:23,893 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-09 17:32:23,893 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1409004417] [2020-11-09 17:32:23,893 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 17:32:23,895 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 17:32:23,899 INFO L252 McrAutomatonBuilder]: Finished intersection with 12 states and 13 transitions. [2020-11-09 17:32:23,899 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 17:32:23,920 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 17:32:23,921 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-09 17:32:23,922 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 17:32:23,923 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-09 17:32:23,923 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-09 17:32:23,923 INFO L87 Difference]: Start difference. First operand 38 states and 60 transitions. Second operand 5 states. [2020-11-09 17:32:23,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 17:32:23,980 INFO L93 Difference]: Finished difference Result 17 states and 16 transitions. [2020-11-09 17:32:23,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-09 17:32:23,981 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2020-11-09 17:32:23,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 17:32:23,982 INFO L225 Difference]: With dead ends: 17 [2020-11-09 17:32:23,982 INFO L226 Difference]: Without dead ends: 15 [2020-11-09 17:32:23,983 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 17:32:23,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2020-11-09 17:32:23,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2020-11-09 17:32:23,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2020-11-09 17:32:23,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 14 transitions. [2020-11-09 17:32:23,986 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 14 transitions. Word has length 9 [2020-11-09 17:32:23,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 17:32:23,986 INFO L481 AbstractCegarLoop]: Abstraction has 15 states and 14 transitions. [2020-11-09 17:32:23,986 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-09 17:32:23,986 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 14 transitions. [2020-11-09 17:32:23,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-11-09 17:32:23,987 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 17:32:23,987 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 17:32:23,987 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-09 17:32:23,988 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 17:32:23,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 17:32:23,988 INFO L82 PathProgramCache]: Analyzing trace with hash -1335143805, now seen corresponding path program 1 times [2020-11-09 17:32:23,990 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 17:32:23,991 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [318283209] [2020-11-09 17:32:23,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 17:32:24,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 17:32:24,177 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 17:32:24,177 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [318283209] [2020-11-09 17:32:24,178 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 17:32:24,178 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-09 17:32:24,178 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [67597124] [2020-11-09 17:32:24,178 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 17:32:24,181 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 17:32:24,185 INFO L252 McrAutomatonBuilder]: Finished intersection with 15 states and 14 transitions. [2020-11-09 17:32:24,185 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 17:32:24,186 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 17:32:24,186 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-09 17:32:24,186 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 17:32:24,187 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-09 17:32:24,187 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-11-09 17:32:24,187 INFO L87 Difference]: Start difference. First operand 15 states and 14 transitions. Second operand 7 states. [2020-11-09 17:32:24,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 17:32:24,366 INFO L93 Difference]: Finished difference Result 14 states and 13 transitions. [2020-11-09 17:32:24,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-09 17:32:24,368 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 14 [2020-11-09 17:32:24,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 17:32:24,368 INFO L225 Difference]: With dead ends: 14 [2020-11-09 17:32:24,369 INFO L226 Difference]: Without dead ends: 0 [2020-11-09 17:32:24,369 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2020-11-09 17:32:24,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-09 17:32:24,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-09 17:32:24,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-09 17:32:24,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-09 17:32:24,370 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2020-11-09 17:32:24,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 17:32:24,370 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-09 17:32:24,371 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-11-09 17:32:24,371 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-09 17:32:24,371 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-09 17:32:24,371 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-09 17:32:24,377 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 05:32:24 BasicIcfg [2020-11-09 17:32:24,377 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-09 17:32:24,379 INFO L168 Benchmark]: Toolchain (without parser) took 14226.47 ms. Allocated memory was 160.4 MB in the beginning and 192.9 MB in the end (delta: 32.5 MB). Free memory was 134.6 MB in the beginning and 149.5 MB in the end (delta: -14.9 MB). Peak memory consumption was 18.5 MB. Max. memory is 8.0 GB. [2020-11-09 17:32:24,381 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 125.8 MB. Free memory is still 96.7 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-11-09 17:32:24,382 INFO L168 Benchmark]: CACSL2BoogieTranslator took 750.27 ms. Allocated memory is still 160.4 MB. Free memory was 134.1 MB in the beginning and 104.6 MB in the end (delta: 29.6 MB). Peak memory consumption was 29.4 MB. Max. memory is 8.0 GB. [2020-11-09 17:32:24,383 INFO L168 Benchmark]: Boogie Procedure Inliner took 108.09 ms. Allocated memory is still 160.4 MB. Free memory was 104.6 MB in the beginning and 142.2 MB in the end (delta: -37.6 MB). Peak memory consumption was 5.8 MB. Max. memory is 8.0 GB. [2020-11-09 17:32:24,385 INFO L168 Benchmark]: Boogie Preprocessor took 69.53 ms. Allocated memory is still 160.4 MB. Free memory was 142.2 MB in the beginning and 140.6 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-11-09 17:32:24,385 INFO L168 Benchmark]: RCFGBuilder took 601.47 ms. Allocated memory is still 160.4 MB. Free memory was 140.6 MB in the beginning and 114.9 MB in the end (delta: 25.7 MB). Peak memory consumption was 26.2 MB. Max. memory is 8.0 GB. [2020-11-09 17:32:24,386 INFO L168 Benchmark]: TraceAbstraction took 12684.01 ms. Allocated memory was 160.4 MB in the beginning and 192.9 MB in the end (delta: 32.5 MB). Free memory was 114.4 MB in the beginning and 149.5 MB in the end (delta: -35.1 MB). There was no memory consumed. Max. memory is 8.0 GB. [2020-11-09 17:32:24,390 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 125.8 MB. Free memory is still 96.7 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 750.27 ms. Allocated memory is still 160.4 MB. Free memory was 134.1 MB in the beginning and 104.6 MB in the end (delta: 29.6 MB). Peak memory consumption was 29.4 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 108.09 ms. Allocated memory is still 160.4 MB. Free memory was 104.6 MB in the beginning and 142.2 MB in the end (delta: -37.6 MB). Peak memory consumption was 5.8 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 69.53 ms. Allocated memory is still 160.4 MB. Free memory was 142.2 MB in the beginning and 140.6 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 601.47 ms. Allocated memory is still 160.4 MB. Free memory was 140.6 MB in the beginning and 114.9 MB in the end (delta: 25.7 MB). Peak memory consumption was 26.2 MB. Max. memory is 8.0 GB. * TraceAbstraction took 12684.01 ms. Allocated memory was 160.4 MB in the beginning and 192.9 MB in the end (delta: 32.5 MB). Free memory was 114.4 MB in the beginning and 149.5 MB in the end (delta: -35.1 MB). There was no memory consumed. 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: 11.4s, 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: 12.5s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 11.4s, 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, 0.2s 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...