/usr/bin/java -Xmx16000000000 -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/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-SemanticLbe.epf -i ../../../trunk/examples/svcomp/pthread-ext/19_time_var_mutex.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-60729f1 [2020-11-11 22:02:31,591 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-11 22:02:31,597 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-11 22:02:31,665 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-11 22:02:31,666 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-11 22:02:31,673 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-11 22:02:31,677 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-11 22:02:31,686 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-11 22:02:31,692 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-11 22:02:31,699 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-11 22:02:31,702 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-11 22:02:31,705 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-11 22:02:31,705 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-11 22:02:31,711 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-11 22:02:31,715 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-11 22:02:31,718 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-11 22:02:31,720 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-11 22:02:31,725 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-11 22:02:31,735 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-11 22:02:31,743 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-11 22:02:31,746 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-11 22:02:31,750 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-11 22:02:31,752 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-11 22:02:31,753 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-11 22:02:31,757 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-11-11 22:02:31,761 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-11 22:02:31,762 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-11 22:02:31,764 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-11 22:02:31,766 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-11 22:02:31,768 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-11 22:02:31,769 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-11 22:02:31,770 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-11 22:02:31,771 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-11 22:02:31,772 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-11 22:02:31,773 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-11 22:02:31,775 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-11 22:02:31,776 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-SemanticLbe.epf [2020-11-11 22:02:31,805 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-11 22:02:31,806 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-11 22:02:31,809 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-11 22:02:31,809 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-11 22:02:31,809 INFO L138 SettingsManager]: * Use SBE=true [2020-11-11 22:02:31,810 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-11 22:02:31,810 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-11 22:02:31,810 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-11 22:02:31,810 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-11 22:02:31,811 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-11 22:02:31,811 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-11 22:02:31,811 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-11 22:02:31,811 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-11 22:02:31,812 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-11 22:02:31,812 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-11 22:02:31,812 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-11 22:02:31,812 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-11 22:02:31,813 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-11 22:02:31,813 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-11 22:02:31,813 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-11 22:02:31,813 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-11 22:02:31,813 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-11 22:02:31,814 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-11 22:02:31,814 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-11 22:02:31,814 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-11 22:02:31,814 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-11 22:02:31,815 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-11 22:02:31,815 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-11 22:02:31,815 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-11-11 22:02:32,275 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-11 22:02:32,305 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-11 22:02:32,311 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-11 22:02:32,313 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-11 22:02:32,313 INFO L275 PluginConnector]: CDTParser initialized [2020-11-11 22:02:32,314 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-ext/19_time_var_mutex.i [2020-11-11 22:02:32,416 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/84c4570b7/486a158d4a874aa6b996642192180e99/FLAGad7872fde [2020-11-11 22:02:33,383 INFO L306 CDTParser]: Found 1 translation units. [2020-11-11 22:02:33,384 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/19_time_var_mutex.i [2020-11-11 22:02:33,411 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/84c4570b7/486a158d4a874aa6b996642192180e99/FLAGad7872fde [2020-11-11 22:02:33,568 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/84c4570b7/486a158d4a874aa6b996642192180e99 [2020-11-11 22:02:33,571 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-11 22:02:33,579 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-11-11 22:02:33,581 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-11 22:02:33,581 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-11 22:02:33,586 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-11 22:02:33,587 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 10:02:33" (1/1) ... [2020-11-11 22:02:33,591 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@53ecff05 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:02:33, skipping insertion in model container [2020-11-11 22:02:33,591 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 10:02:33" (1/1) ... [2020-11-11 22:02:33,601 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-11 22:02:33,645 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-11 22:02:34,148 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-11 22:02:34,162 INFO L203 MainTranslator]: Completed pre-run [2020-11-11 22:02:34,252 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-11 22:02:34,371 INFO L208 MainTranslator]: Completed translation [2020-11-11 22:02:34,372 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:02:34 WrapperNode [2020-11-11 22:02:34,372 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-11 22:02:34,373 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-11 22:02:34,373 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-11 22:02:34,374 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-11 22:02:34,386 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:02:34" (1/1) ... [2020-11-11 22:02:34,404 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:02:34" (1/1) ... [2020-11-11 22:02:34,436 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-11 22:02:34,437 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-11 22:02:34,437 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-11 22:02:34,437 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-11 22:02:34,448 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:02:34" (1/1) ... [2020-11-11 22:02:34,449 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:02:34" (1/1) ... [2020-11-11 22:02:34,452 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:02:34" (1/1) ... [2020-11-11 22:02:34,453 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:02:34" (1/1) ... [2020-11-11 22:02:34,462 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:02:34" (1/1) ... [2020-11-11 22:02:34,465 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:02:34" (1/1) ... [2020-11-11 22:02:34,471 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:02:34" (1/1) ... [2020-11-11 22:02:34,475 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-11 22:02:34,477 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-11 22:02:34,477 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-11 22:02:34,477 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-11 22:02:34,479 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:02:34" (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 [2020-11-11 22:02:34,580 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-11 22:02:34,580 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2020-11-11 22:02:34,580 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2020-11-11 22:02:34,580 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-11 22:02:34,581 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-11 22:02:34,581 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-11 22:02:34,582 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-11 22:02:34,582 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-11 22:02:34,583 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-11 22:02:34,585 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-11-11 22:02:35,831 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-11 22:02:35,832 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-11-11 22:02:35,834 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 10:02:35 BoogieIcfgContainer [2020-11-11 22:02:35,834 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-11 22:02:35,836 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-11 22:02:35,837 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-11 22:02:35,842 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-11 22:02:35,843 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.11 10:02:33" (1/3) ... [2020-11-11 22:02:35,845 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c236451 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.11 10:02:35, skipping insertion in model container [2020-11-11 22:02:35,845 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:02:34" (2/3) ... [2020-11-11 22:02:35,846 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c236451 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.11 10:02:35, skipping insertion in model container [2020-11-11 22:02:35,846 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 10:02:35" (3/3) ... [2020-11-11 22:02:35,848 INFO L111 eAbstractionObserver]: Analyzing ICFG 19_time_var_mutex.i [2020-11-11 22:02:35,867 WARN L168 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-11-11 22:02:35,868 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-11 22:02:35,872 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-11-11 22:02:35,873 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-11-11 22:02:35,909 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 22:02:35,909 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 22:02:35,910 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 22:02:35,910 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 22:02:35,910 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 22:02:35,911 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 22:02:35,911 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 22:02:35,911 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 22:02:35,911 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_~m.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 22:02:35,911 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_~m.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 22:02:35,912 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_#in~m.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 22:02:35,912 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 22:02:35,912 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 22:02:35,912 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 22:02:35,912 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_#in~m.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 22:02:35,913 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_~m.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 22:02:35,913 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_~m.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 22:02:35,913 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_#in~m.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 22:02:35,914 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 22:02:35,914 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 22:02:35,914 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 22:02:35,914 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_#in~m.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 22:02:35,915 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_~m.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 22:02:35,915 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_~m.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 22:02:35,915 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_#in~m.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 22:02:35,915 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 22:02:35,916 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 22:02:35,916 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 22:02:35,916 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_#in~m.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 22:02:35,916 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_~m.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 22:02:35,917 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_~m.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 22:02:35,917 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_#in~m.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 22:02:35,917 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 22:02:35,917 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 22:02:35,917 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 22:02:35,918 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_#in~m.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 22:02:35,918 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_release_#in~m.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 22:02:35,918 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_release_~m.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 22:02:35,919 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_release_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 22:02:35,919 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_release_#in~m.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 22:02:35,919 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_release_~m.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 22:02:35,919 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 22:02:35,919 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 22:02:35,920 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_release_#in~m.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 22:02:35,920 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_release_~m.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 22:02:35,920 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_release_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 22:02:35,920 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_release_#in~m.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 22:02:35,920 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_release_~m.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 22:02:35,921 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 22:02:35,921 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 22:02:35,921 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 22:02:35,921 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 22:02:35,922 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 22:02:35,922 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 22:02:35,922 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_release_#in~m.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 22:02:35,922 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_release_~m.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 22:02:35,923 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_release_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 22:02:35,923 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_release_#in~m.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 22:02:35,923 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_release_~m.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 22:02:35,923 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 22:02:35,923 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 22:02:35,924 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_release_#in~m.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 22:02:35,924 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_release_~m.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 22:02:35,924 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_release_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 22:02:35,925 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_release_#in~m.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 22:02:35,925 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_release_~m.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 22:02:35,925 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 22:02:35,925 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 22:02:35,926 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 22:02:35,926 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 22:02:35,926 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 22:02:35,926 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 22:02:35,927 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 22:02:35,927 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 22:02:35,927 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 22:02:35,927 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 22:02:35,930 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_#in~m.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 22:02:35,930 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 22:02:35,931 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 22:02:35,931 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_release_#in~m.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 22:02:35,931 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 22:02:35,931 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 22:02:35,932 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 22:02:35,932 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_#in~m.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 22:02:35,932 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_~m.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 22:02:35,932 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 22:02:35,932 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_release_~m.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 22:02:35,933 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_~m.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 22:02:35,933 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_release_#in~m.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 22:02:35,933 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 22:02:35,933 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_release_~m.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 22:02:35,934 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 22:02:35,934 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_release_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 22:02:35,934 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 22:02:35,941 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-11-11 22:02:35,956 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-11-11 22:02:35,984 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-11 22:02:35,984 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-11 22:02:35,984 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-11 22:02:35,984 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-11 22:02:35,985 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-11 22:02:35,985 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-11 22:02:35,985 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-11 22:02:35,985 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-11 22:02:36,001 INFO L120 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-11-11 22:02:36,003 INFO L135 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 66 places, 68 transitions, 141 flow [2020-11-11 22:02:36,007 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 66 places, 68 transitions, 141 flow [2020-11-11 22:02:36,010 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 66 places, 68 transitions, 141 flow [2020-11-11 22:02:36,058 INFO L129 PetriNetUnfolder]: 6/67 cut-off events. [2020-11-11 22:02:36,059 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-11-11 22:02:36,065 INFO L84 FinitePrefix]: Finished finitePrefix Result has 71 conditions, 67 events. 6/67 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 97 event pairs, 0 based on Foata normal form. 0/59 useless extension candidates. Maximal degree in co-relation 48. Up to 3 conditions per place. [2020-11-11 22:02:36,071 INFO L116 LiptonReduction]: Number of co-enabled transitions 1134 [2020-11-11 22:02:36,617 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 32 [2020-11-11 22:02:36,720 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 37 [2020-11-11 22:02:37,070 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 33 [2020-11-11 22:02:37,189 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 31 [2020-11-11 22:02:37,495 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 29 [2020-11-11 22:02:37,683 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 32 [2020-11-11 22:02:39,138 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 35 [2020-11-11 22:02:39,273 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 33 [2020-11-11 22:02:40,582 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 45 [2020-11-11 22:02:40,728 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 45 [2020-11-11 22:02:42,047 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 70 [2020-11-11 22:02:42,153 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2020-11-11 22:02:42,371 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 70 [2020-11-11 22:02:43,343 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 42 [2020-11-11 22:02:43,667 WARN L193 SmtUtils]: Spent 309.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 83 [2020-11-11 22:02:43,806 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2020-11-11 22:02:44,102 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 83 [2020-11-11 22:02:44,263 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2020-11-11 22:02:44,463 WARN L193 SmtUtils]: Spent 182.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2020-11-11 22:02:44,641 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2020-11-11 22:02:44,823 WARN L193 SmtUtils]: Spent 180.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2020-11-11 22:02:45,102 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2020-11-11 22:02:45,279 INFO L131 LiptonReduction]: Checked pairs total: 2842 [2020-11-11 22:02:45,280 INFO L133 LiptonReduction]: Total number of compositions: 74 [2020-11-11 22:02:45,290 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 21 places, 21 transitions, 47 flow [2020-11-11 22:02:45,313 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 65 states, 61 states have (on average 2.360655737704918) internal successors, (144), 64 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 22:02:45,319 INFO L276 IsEmpty]: Start isEmpty. Operand has 65 states, 61 states have (on average 2.360655737704918) internal successors, (144), 64 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 22:02:45,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-11-11 22:02:45,329 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 22:02:45,329 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-11-11 22:02:45,330 INFO L429 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-11 22:02:45,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 22:02:45,346 INFO L82 PathProgramCache]: Analyzing trace with hash 470263094, now seen corresponding path program 1 times [2020-11-11 22:02:45,362 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 22:02:45,364 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1880660499] [2020-11-11 22:02:45,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 22:02:45,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 22:02:45,698 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 22:02:45,699 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1880660499] [2020-11-11 22:02:45,700 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 22:02:45,700 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-11 22:02:45,701 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1283346017] [2020-11-11 22:02:45,708 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-11 22:02:45,709 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 22:02:45,730 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-11 22:02:45,731 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-11 22:02:45,735 INFO L87 Difference]: Start difference. First operand has 65 states, 61 states have (on average 2.360655737704918) internal successors, (144), 64 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 22:02:45,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 22:02:45,766 INFO L93 Difference]: Finished difference Result 65 states and 121 transitions. [2020-11-11 22:02:45,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-11 22:02:45,768 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2020-11-11 22:02:45,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 22:02:45,786 INFO L225 Difference]: With dead ends: 65 [2020-11-11 22:02:45,786 INFO L226 Difference]: Without dead ends: 59 [2020-11-11 22:02:45,789 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-11 22:02:45,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2020-11-11 22:02:45,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59. [2020-11-11 22:02:45,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 56 states have (on average 1.9107142857142858) internal successors, (107), 58 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 22:02:45,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 107 transitions. [2020-11-11 22:02:45,855 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 107 transitions. Word has length 5 [2020-11-11 22:02:45,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 22:02:45,856 INFO L481 AbstractCegarLoop]: Abstraction has 59 states and 107 transitions. [2020-11-11 22:02:45,857 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 22:02:45,857 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 107 transitions. [2020-11-11 22:02:45,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-11-11 22:02:45,858 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 22:02:45,858 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-11-11 22:02:45,859 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-11 22:02:45,859 INFO L429 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-11 22:02:45,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 22:02:45,861 INFO L82 PathProgramCache]: Analyzing trace with hash 470271337, now seen corresponding path program 1 times [2020-11-11 22:02:45,861 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 22:02:45,861 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1626402314] [2020-11-11 22:02:45,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 22:02:45,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 22:02:45,939 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 22:02:45,939 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1626402314] [2020-11-11 22:02:45,939 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 22:02:45,940 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-11 22:02:45,940 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1175628662] [2020-11-11 22:02:45,942 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-11 22:02:45,943 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 22:02:45,944 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-11 22:02:45,947 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-11 22:02:45,947 INFO L87 Difference]: Start difference. First operand 59 states and 107 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 22:02:45,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 22:02:45,991 INFO L93 Difference]: Finished difference Result 62 states and 103 transitions. [2020-11-11 22:02:45,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-11 22:02:45,993 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2020-11-11 22:02:45,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 22:02:45,994 INFO L225 Difference]: With dead ends: 62 [2020-11-11 22:02:45,994 INFO L226 Difference]: Without dead ends: 56 [2020-11-11 22:02:45,997 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-11 22:02:45,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2020-11-11 22:02:46,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 52. [2020-11-11 22:02:46,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 48 states have (on average 1.875) internal successors, (90), 51 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 22:02:46,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 90 transitions. [2020-11-11 22:02:46,018 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 90 transitions. Word has length 5 [2020-11-11 22:02:46,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 22:02:46,018 INFO L481 AbstractCegarLoop]: Abstraction has 52 states and 90 transitions. [2020-11-11 22:02:46,019 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 22:02:46,019 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 90 transitions. [2020-11-11 22:02:46,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-11 22:02:46,020 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 22:02:46,020 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-11-11 22:02:46,020 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-11 22:02:46,020 INFO L429 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-11 22:02:46,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 22:02:46,021 INFO L82 PathProgramCache]: Analyzing trace with hash -523364775, now seen corresponding path program 1 times [2020-11-11 22:02:46,021 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 22:02:46,022 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1450677666] [2020-11-11 22:02:46,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 22:02:46,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 22:02:46,130 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 22:02:46,131 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1450677666] [2020-11-11 22:02:46,131 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 22:02:46,131 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-11 22:02:46,132 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1510049403] [2020-11-11 22:02:46,132 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-11 22:02:46,132 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 22:02:46,133 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-11 22:02:46,133 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-11 22:02:46,134 INFO L87 Difference]: Start difference. First operand 52 states and 90 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 22:02:46,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 22:02:46,159 INFO L93 Difference]: Finished difference Result 49 states and 80 transitions. [2020-11-11 22:02:46,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-11 22:02:46,160 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2020-11-11 22:02:46,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 22:02:46,161 INFO L225 Difference]: With dead ends: 49 [2020-11-11 22:02:46,161 INFO L226 Difference]: Without dead ends: 31 [2020-11-11 22:02:46,162 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-11 22:02:46,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2020-11-11 22:02:46,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2020-11-11 22:02:46,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 28 states have (on average 1.5) internal successors, (42), 30 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 22:02:46,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 42 transitions. [2020-11-11 22:02:46,168 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 42 transitions. Word has length 8 [2020-11-11 22:02:46,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 22:02:46,168 INFO L481 AbstractCegarLoop]: Abstraction has 31 states and 42 transitions. [2020-11-11 22:02:46,169 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 22:02:46,169 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 42 transitions. [2020-11-11 22:02:46,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-11 22:02:46,169 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 22:02:46,170 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-11 22:02:46,170 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-11 22:02:46,170 INFO L429 AbstractCegarLoop]: === Iteration 4 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-11 22:02:46,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 22:02:46,171 INFO L82 PathProgramCache]: Analyzing trace with hash -442359047, now seen corresponding path program 1 times [2020-11-11 22:02:46,171 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 22:02:46,171 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [580985782] [2020-11-11 22:02:46,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 22:02:46,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 22:02:46,281 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 22:02:46,281 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [580985782] [2020-11-11 22:02:46,281 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 22:02:46,281 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-11 22:02:46,282 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1827335596] [2020-11-11 22:02:46,282 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-11 22:02:46,282 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 22:02:46,283 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-11 22:02:46,283 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-11 22:02:46,283 INFO L87 Difference]: Start difference. First operand 31 states and 42 transitions. Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 22:02:46,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 22:02:46,296 INFO L93 Difference]: Finished difference Result 31 states and 39 transitions. [2020-11-11 22:02:46,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-11 22:02:46,297 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2020-11-11 22:02:46,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 22:02:46,297 INFO L225 Difference]: With dead ends: 31 [2020-11-11 22:02:46,298 INFO L226 Difference]: Without dead ends: 28 [2020-11-11 22:02:46,298 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-11 22:02:46,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2020-11-11 22:02:46,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2020-11-11 22:02:46,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 25 states have (on average 1.44) internal successors, (36), 27 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 22:02:46,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 36 transitions. [2020-11-11 22:02:46,303 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 36 transitions. Word has length 10 [2020-11-11 22:02:46,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 22:02:46,303 INFO L481 AbstractCegarLoop]: Abstraction has 28 states and 36 transitions. [2020-11-11 22:02:46,303 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 22:02:46,303 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 36 transitions. [2020-11-11 22:02:46,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-11 22:02:46,304 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 22:02:46,305 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-11 22:02:46,305 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-11 22:02:46,305 INFO L429 AbstractCegarLoop]: === Iteration 5 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-11 22:02:46,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 22:02:46,307 INFO L82 PathProgramCache]: Analyzing trace with hash 1392583963, now seen corresponding path program 2 times [2020-11-11 22:02:46,307 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 22:02:46,307 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1402023635] [2020-11-11 22:02:46,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 22:02:46,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 22:02:46,350 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 22:02:46,350 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1402023635] [2020-11-11 22:02:46,350 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 22:02:46,351 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-11 22:02:46,351 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1653173991] [2020-11-11 22:02:46,351 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-11 22:02:46,352 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 22:02:46,352 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-11 22:02:46,353 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-11 22:02:46,353 INFO L87 Difference]: Start difference. First operand 28 states and 36 transitions. Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 22:02:46,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 22:02:46,377 INFO L93 Difference]: Finished difference Result 9 states and 10 transitions. [2020-11-11 22:02:46,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-11 22:02:46,378 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2020-11-11 22:02:46,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 22:02:46,379 INFO L225 Difference]: With dead ends: 9 [2020-11-11 22:02:46,379 INFO L226 Difference]: Without dead ends: 0 [2020-11-11 22:02:46,380 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-11 22:02:46,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-11 22:02:46,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-11 22:02:46,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 22:02:46,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-11 22:02:46,382 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 10 [2020-11-11 22:02:46,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 22:02:46,383 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-11 22:02:46,383 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 22:02:46,383 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-11 22:02:46,384 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-11 22:02:46,384 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-11 22:02:46,389 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.11 10:02:46 BasicIcfg [2020-11-11 22:02:46,389 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-11 22:02:46,392 INFO L168 Benchmark]: Toolchain (without parser) took 12818.29 ms. Allocated memory was 302.0 MB in the beginning and 436.2 MB in the end (delta: 134.2 MB). Free memory was 277.6 MB in the beginning and 347.5 MB in the end (delta: -70.0 MB). Peak memory consumption was 66.4 MB. Max. memory is 16.0 GB. [2020-11-11 22:02:46,393 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 302.0 MB. Free memory is still 272.3 MB. There was no memory consumed. Max. memory is 16.0 GB. [2020-11-11 22:02:46,394 INFO L168 Benchmark]: CACSL2BoogieTranslator took 791.69 ms. Allocated memory is still 302.0 MB. Free memory was 276.8 MB in the beginning and 247.7 MB in the end (delta: 29.1 MB). Peak memory consumption was 29.4 MB. Max. memory is 16.0 GB. [2020-11-11 22:02:46,395 INFO L168 Benchmark]: Boogie Procedure Inliner took 62.87 ms. Allocated memory is still 302.0 MB. Free memory was 247.7 MB in the beginning and 245.5 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2020-11-11 22:02:46,395 INFO L168 Benchmark]: Boogie Preprocessor took 38.74 ms. Allocated memory is still 302.0 MB. Free memory was 245.5 MB in the beginning and 243.9 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2020-11-11 22:02:46,396 INFO L168 Benchmark]: RCFGBuilder took 1357.26 ms. Allocated memory is still 302.0 MB. Free memory was 243.9 MB in the beginning and 216.3 MB in the end (delta: 27.6 MB). Peak memory consumption was 29.8 MB. Max. memory is 16.0 GB. [2020-11-11 22:02:46,397 INFO L168 Benchmark]: TraceAbstraction took 10553.50 ms. Allocated memory was 302.0 MB in the beginning and 436.2 MB in the end (delta: 134.2 MB). Free memory was 216.3 MB in the beginning and 347.5 MB in the end (delta: -131.2 MB). Peak memory consumption was 3.0 MB. Max. memory is 16.0 GB. [2020-11-11 22:02:46,402 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 302.0 MB. Free memory is still 272.3 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 791.69 ms. Allocated memory is still 302.0 MB. Free memory was 276.8 MB in the beginning and 247.7 MB in the end (delta: 29.1 MB). Peak memory consumption was 29.4 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 62.87 ms. Allocated memory is still 302.0 MB. Free memory was 247.7 MB in the beginning and 245.5 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 38.74 ms. Allocated memory is still 302.0 MB. Free memory was 245.5 MB in the beginning and 243.9 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 1357.26 ms. Allocated memory is still 302.0 MB. Free memory was 243.9 MB in the beginning and 216.3 MB in the end (delta: 27.6 MB). Peak memory consumption was 29.8 MB. Max. memory is 16.0 GB. * TraceAbstraction took 10553.50 ms. Allocated memory was 302.0 MB in the beginning and 436.2 MB in the end (delta: 134.2 MB). Free memory was 216.3 MB in the beginning and 347.5 MB in the end (delta: -131.2 MB). Peak memory consumption was 3.0 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 859 VarBasedMoverChecksPositive, 102 VarBasedMoverChecksNegative, 59 SemBasedMoverChecksPositive, 43 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 1.0s, 84 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 9.2s, 66 PlacesBefore, 21 PlacesAfterwards, 68 TransitionsBefore, 21 TransitionsAfterwards, 1134 CoEnabledTransitionPairs, 7 FixpointIterations, 17 TrivialSequentialCompositions, 37 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 18 ConcurrentYvCompositions, 2 ChoiceCompositions, 74 TotalNumberOfCompositions, 2842 MoverChecksTotal - PositiveResult [Line: 16]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 16]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 63 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 10.4s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 9.3s, HoareTripleCheckerStatistics: 77 SDtfs, 36 SDslu, 30 SDs, 0 SdLazy, 20 SolverSat, 7 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=65occurred 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, 5 MinimizatonAttempts, 4 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 38 NumberOfCodeBlocks, 38 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 33 ConstructedInterpolants, 0 QuantifiedInterpolants, 389 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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...