/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.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-McrStrategy.epf -i ../../../trunk/examples/svcomp/pthread-ext/18_read_write_lock.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-b981219 [2020-04-18 07:40:59,838 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-04-18 07:40:59,840 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-04-18 07:40:59,852 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-04-18 07:40:59,852 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-04-18 07:40:59,853 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-04-18 07:40:59,855 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-04-18 07:40:59,857 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-04-18 07:40:59,858 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-04-18 07:40:59,859 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-04-18 07:40:59,860 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-04-18 07:40:59,861 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-04-18 07:40:59,861 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-04-18 07:40:59,862 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-04-18 07:40:59,863 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-04-18 07:40:59,864 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-04-18 07:40:59,865 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-04-18 07:40:59,866 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-04-18 07:40:59,868 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-04-18 07:40:59,869 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-04-18 07:40:59,871 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-04-18 07:40:59,872 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-04-18 07:40:59,873 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-04-18 07:40:59,874 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-04-18 07:40:59,876 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-04-18 07:40:59,879 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-04-18 07:40:59,880 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-04-18 07:40:59,880 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-04-18 07:40:59,881 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-04-18 07:40:59,882 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-04-18 07:40:59,882 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-04-18 07:40:59,883 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-04-18 07:40:59,883 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-04-18 07:40:59,883 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-04-18 07:40:59,884 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-04-18 07:40:59,885 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-04-18 07:40:59,886 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-McrStrategy.epf [2020-04-18 07:40:59,900 INFO L113 SettingsManager]: Loading preferences was successful [2020-04-18 07:40:59,900 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-04-18 07:40:59,901 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-04-18 07:40:59,901 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-04-18 07:40:59,902 INFO L138 SettingsManager]: * Use SBE=true [2020-04-18 07:40:59,902 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-04-18 07:40:59,902 INFO L138 SettingsManager]: * sizeof long=4 [2020-04-18 07:40:59,902 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-04-18 07:40:59,902 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-04-18 07:40:59,903 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-04-18 07:40:59,903 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-04-18 07:40:59,903 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-04-18 07:40:59,903 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-04-18 07:40:59,903 INFO L138 SettingsManager]: * sizeof long double=12 [2020-04-18 07:40:59,904 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-04-18 07:40:59,904 INFO L138 SettingsManager]: * Use constant arrays=true [2020-04-18 07:40:59,904 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-04-18 07:40:59,904 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-04-18 07:40:59,904 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-04-18 07:40:59,905 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-04-18 07:40:59,905 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-04-18 07:40:59,905 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-04-18 07:40:59,905 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-04-18 07:40:59,906 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-04-18 07:40:59,906 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-04-18 07:40:59,906 INFO L138 SettingsManager]: * Trace refinement strategy=MCR [2020-04-18 07:40:59,906 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-04-18 07:40:59,906 INFO L138 SettingsManager]: * Trace refinement strategy used in MCR=CAMEL [2020-04-18 07:40:59,907 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-04-18 07:40:59,907 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-04-18 07:41:00,170 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-04-18 07:41:00,180 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-04-18 07:41:00,184 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-04-18 07:41:00,185 INFO L271 PluginConnector]: Initializing CDTParser... [2020-04-18 07:41:00,190 INFO L275 PluginConnector]: CDTParser initialized [2020-04-18 07:41:00,191 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-ext/18_read_write_lock.i [2020-04-18 07:41:00,272 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1e765e107/0d93154bfd3645c3ab70b02b43197228/FLAGf01c7a891 [2020-04-18 07:41:00,809 INFO L306 CDTParser]: Found 1 translation units. [2020-04-18 07:41:00,810 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/18_read_write_lock.i [2020-04-18 07:41:00,828 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1e765e107/0d93154bfd3645c3ab70b02b43197228/FLAGf01c7a891 [2020-04-18 07:41:01,088 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1e765e107/0d93154bfd3645c3ab70b02b43197228 [2020-04-18 07:41:01,097 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-04-18 07:41:01,119 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-04-18 07:41:01,120 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-04-18 07:41:01,120 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-04-18 07:41:01,123 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-04-18 07:41:01,124 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 07:41:01" (1/1) ... [2020-04-18 07:41:01,127 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@675be5bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:41:01, skipping insertion in model container [2020-04-18 07:41:01,127 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 07:41:01" (1/1) ... [2020-04-18 07:41:01,135 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-04-18 07:41:01,190 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-04-18 07:41:01,670 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-04-18 07:41:01,683 INFO L203 MainTranslator]: Completed pre-run [2020-04-18 07:41:01,748 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-04-18 07:41:01,826 INFO L208 MainTranslator]: Completed translation [2020-04-18 07:41:01,826 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:41:01 WrapperNode [2020-04-18 07:41:01,827 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-04-18 07:41:01,827 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-04-18 07:41:01,828 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-04-18 07:41:01,828 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-04-18 07:41:01,836 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:41:01" (1/1) ... [2020-04-18 07:41:01,867 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:41:01" (1/1) ... [2020-04-18 07:41:01,891 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-04-18 07:41:01,892 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-04-18 07:41:01,892 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-04-18 07:41:01,892 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-04-18 07:41:01,899 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:41:01" (1/1) ... [2020-04-18 07:41:01,899 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:41:01" (1/1) ... [2020-04-18 07:41:01,901 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:41:01" (1/1) ... [2020-04-18 07:41:01,901 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:41:01" (1/1) ... [2020-04-18 07:41:01,906 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:41:01" (1/1) ... [2020-04-18 07:41:01,908 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:41:01" (1/1) ... [2020-04-18 07:41:01,910 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:41:01" (1/1) ... [2020-04-18 07:41:01,913 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-04-18 07:41:01,913 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-04-18 07:41:01,913 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-04-18 07:41:01,914 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-04-18 07:41:01,914 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:41:01" (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 [2020-04-18 07:41:01,965 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2020-04-18 07:41:01,966 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2020-04-18 07:41:01,966 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-04-18 07:41:01,966 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-04-18 07:41:01,966 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-04-18 07:41:01,966 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-04-18 07:41:01,966 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-04-18 07:41:01,968 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-04-18 07:41:02,521 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-04-18 07:41:02,522 INFO L295 CfgBuilder]: Removed 6 assume(true) statements. [2020-04-18 07:41:02,526 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 07:41:02 BoogieIcfgContainer [2020-04-18 07:41:02,526 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-04-18 07:41:02,527 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-04-18 07:41:02,527 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-04-18 07:41:02,531 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-04-18 07:41:02,531 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.04 07:41:01" (1/3) ... [2020-04-18 07:41:02,532 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25870d53 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 07:41:02, skipping insertion in model container [2020-04-18 07:41:02,532 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:41:01" (2/3) ... [2020-04-18 07:41:02,533 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25870d53 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 07:41:02, skipping insertion in model container [2020-04-18 07:41:02,533 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 07:41:02" (3/3) ... [2020-04-18 07:41:02,535 INFO L109 eAbstractionObserver]: Analyzing ICFG 18_read_write_lock.i [2020-04-18 07:41:02,545 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-04-18 07:41:02,546 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-04-18 07:41:02,553 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-04-18 07:41:02,554 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-04-18 07:41:02,576 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:41:02,576 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:41:02,576 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:41:02,577 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:41:02,577 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:41:02,577 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:41:02,578 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:41:02,578 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:41:02,583 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:41:02,583 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:41:02,583 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:41:02,584 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:41:02,584 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:41:02,584 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:41:02,608 INFO L251 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2020-04-18 07:41:02,630 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-04-18 07:41:02,630 INFO L376 AbstractCegarLoop]: Hoare is true [2020-04-18 07:41:02,630 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-04-18 07:41:02,631 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-04-18 07:41:02,631 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-04-18 07:41:02,631 INFO L380 AbstractCegarLoop]: Difference is false [2020-04-18 07:41:02,631 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-04-18 07:41:02,631 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-04-18 07:41:02,647 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 42 places, 39 transitions, 83 flow [2020-04-18 07:41:02,649 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 42 places, 39 transitions, 83 flow [2020-04-18 07:41:02,688 INFO L129 PetriNetUnfolder]: 1/38 cut-off events. [2020-04-18 07:41:02,688 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-04-18 07:41:02,692 INFO L80 FinitePrefix]: Finished finitePrefix Result has 42 conditions, 38 events. 1/38 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 16 event pairs, 0 based on Foata normal form. 0/36 useless extension candidates. Maximal degree in co-relation 26. Up to 2 conditions per place. [2020-04-18 07:41:02,693 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 42 places, 39 transitions, 83 flow [2020-04-18 07:41:02,703 INFO L129 PetriNetUnfolder]: 1/38 cut-off events. [2020-04-18 07:41:02,703 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-04-18 07:41:02,704 INFO L80 FinitePrefix]: Finished finitePrefix Result has 42 conditions, 38 events. 1/38 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 16 event pairs, 0 based on Foata normal form. 0/36 useless extension candidates. Maximal degree in co-relation 26. Up to 2 conditions per place. [2020-04-18 07:41:02,705 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 240 [2020-04-18 07:41:02,706 INFO L170 etLargeBlockEncoding]: Semantic Check. [2020-04-18 07:41:03,781 INFO L206 etLargeBlockEncoding]: Checked pairs total: 466 [2020-04-18 07:41:03,782 INFO L214 etLargeBlockEncoding]: Total number of compositions: 35 [2020-04-18 07:41:03,788 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 14 places, 11 transitions, 27 flow [2020-04-18 07:41:03,796 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 20 states. [2020-04-18 07:41:03,798 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states. [2020-04-18 07:41:03,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-04-18 07:41:03,803 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 07:41:03,804 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-04-18 07:41:03,804 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 07:41:03,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 07:41:03,809 INFO L82 PathProgramCache]: Analyzing trace with hash 234696237, now seen corresponding path program 1 times [2020-04-18 07:41:03,814 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 07:41:03,815 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [92659072] [2020-04-18 07:41:03,826 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 07:41:03,835 INFO L259 McrAutomatonBuilder]: Finished intersection with 6 states and 5 transitions. [2020-04-18 07:41:03,836 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states. [2020-04-18 07:41:03,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-04-18 07:41:03,836 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 07:41:03,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 07:41:03,837 INFO L82 PathProgramCache]: Analyzing trace with hash 234696237, now seen corresponding path program 2 times [2020-04-18 07:41:03,840 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 07:41:03,841 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1261474774] [2020-04-18 07:41:03,841 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 07:41:03,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 07:41:04,016 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 07:41:04,017 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1261474774] [2020-04-18 07:41:04,018 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 07:41:04,019 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-04-18 07:41:04,021 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 07:41:04,021 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 07:41:04,024 INFO L259 McrAutomatonBuilder]: Finished intersection with 6 states and 5 transitions. [2020-04-18 07:41:04,024 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 07:41:04,031 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times. [2020-04-18 07:41:04,034 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-04-18 07:41:04,035 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-18 07:41:04,037 INFO L87 Difference]: Start difference. First operand 6 states. Second operand 3 states. [2020-04-18 07:41:04,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 07:41:04,047 INFO L93 Difference]: Finished difference Result 6 states and 5 transitions. [2020-04-18 07:41:04,047 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states and 5 transitions. [2020-04-18 07:41:04,047 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 07:41:04,048 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [92659072] [2020-04-18 07:41:04,049 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 07:41:04,049 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2] total 2 [2020-04-18 07:41:04,049 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [92659072] [2020-04-18 07:41:04,050 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-04-18 07:41:04,051 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 07:41:04,056 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-04-18 07:41:04,056 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-18 07:41:04,057 INFO L87 Difference]: Start difference. First operand 20 states. Second operand 3 states. [2020-04-18 07:41:04,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 07:41:04,087 INFO L93 Difference]: Finished difference Result 21 states and 27 transitions. [2020-04-18 07:41:04,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-04-18 07:41:04,089 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2020-04-18 07:41:04,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 07:41:04,111 INFO L225 Difference]: With dead ends: 21 [2020-04-18 07:41:04,111 INFO L226 Difference]: Without dead ends: 10 [2020-04-18 07:41:04,114 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-18 07:41:04,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2020-04-18 07:41:04,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2020-04-18 07:41:04,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2020-04-18 07:41:04,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 11 transitions. [2020-04-18 07:41:04,152 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 11 transitions. Word has length 5 [2020-04-18 07:41:04,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 07:41:04,153 INFO L479 AbstractCegarLoop]: Abstraction has 10 states and 11 transitions. [2020-04-18 07:41:04,153 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-04-18 07:41:04,153 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 11 transitions. [2020-04-18 07:41:04,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-04-18 07:41:04,154 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 07:41:04,154 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-04-18 07:41:04,154 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 07:41:04,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 07:41:04,155 INFO L82 PathProgramCache]: Analyzing trace with hash -2106582602, now seen corresponding path program 1 times [2020-04-18 07:41:04,156 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 07:41:04,157 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [330679249] [2020-04-18 07:41:04,161 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 07:41:04,163 INFO L259 McrAutomatonBuilder]: Finished intersection with 14 states and 19 transitions. [2020-04-18 07:41:04,165 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states. [2020-04-18 07:41:04,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-04-18 07:41:04,173 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 07:41:04,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 07:41:04,174 INFO L82 PathProgramCache]: Analyzing trace with hash -2106582812, now seen corresponding path program 2 times [2020-04-18 07:41:04,174 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 07:41:04,176 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2033828910] [2020-04-18 07:41:04,177 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 07:41:04,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 07:41:04,277 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 07:41:04,277 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2033828910] [2020-04-18 07:41:04,277 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 07:41:04,278 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-04-18 07:41:04,278 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 07:41:04,279 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 07:41:04,281 INFO L259 McrAutomatonBuilder]: Finished intersection with 8 states and 7 transitions. [2020-04-18 07:41:04,281 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 07:41:04,285 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times. [2020-04-18 07:41:04,286 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-04-18 07:41:04,286 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-18 07:41:04,286 INFO L87 Difference]: Start difference. First operand 14 states. Second operand 3 states. [2020-04-18 07:41:04,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 07:41:04,293 INFO L93 Difference]: Finished difference Result 20 states and 26 transitions. [2020-04-18 07:41:04,293 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 26 transitions. [2020-04-18 07:41:04,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-04-18 07:41:04,294 INFO L105 Mcr]: ---- MCR iteration 1 ---- [2020-04-18 07:41:04,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 07:41:04,294 INFO L82 PathProgramCache]: Analyzing trace with hash -2106843932, now seen corresponding path program 3 times [2020-04-18 07:41:04,295 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 07:41:04,295 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [734112389] [2020-04-18 07:41:04,295 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 07:41:04,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 07:41:04,353 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 07:41:04,353 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [734112389] [2020-04-18 07:41:04,354 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 07:41:04,354 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-04-18 07:41:04,354 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 07:41:04,355 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 07:41:04,356 INFO L259 McrAutomatonBuilder]: Finished intersection with 8 states and 7 transitions. [2020-04-18 07:41:04,356 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 07:41:04,360 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times. [2020-04-18 07:41:04,361 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-04-18 07:41:04,361 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-04-18 07:41:04,361 INFO L87 Difference]: Start difference. First operand 20 states and 26 transitions. Second operand 3 states. [2020-04-18 07:41:04,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 07:41:04,365 INFO L93 Difference]: Finished difference Result 24 states and 28 transitions. [2020-04-18 07:41:04,365 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 28 transitions. [2020-04-18 07:41:04,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-04-18 07:41:04,366 INFO L105 Mcr]: ---- MCR iteration 2 ---- [2020-04-18 07:41:04,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 07:41:04,366 INFO L82 PathProgramCache]: Analyzing trace with hash -2090178332, now seen corresponding path program 4 times [2020-04-18 07:41:04,366 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 07:41:04,367 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1861042710] [2020-04-18 07:41:04,367 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 07:41:04,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 07:41:04,420 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 07:41:04,420 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1861042710] [2020-04-18 07:41:04,421 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 07:41:04,421 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-04-18 07:41:04,421 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 07:41:04,422 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 07:41:04,423 INFO L259 McrAutomatonBuilder]: Finished intersection with 9 states and 9 transitions. [2020-04-18 07:41:04,423 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 07:41:04,440 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 1 times. [2020-04-18 07:41:04,440 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-04-18 07:41:04,441 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-04-18 07:41:04,441 INFO L87 Difference]: Start difference. First operand 24 states and 28 transitions. Second operand 4 states. [2020-04-18 07:41:04,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 07:41:04,449 INFO L93 Difference]: Finished difference Result 27 states and 30 transitions. [2020-04-18 07:41:04,449 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 30 transitions. [2020-04-18 07:41:04,450 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 07:41:04,450 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [330679249] [2020-04-18 07:41:04,451 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 07:41:04,451 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3] total 3 [2020-04-18 07:41:04,451 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [330679249] [2020-04-18 07:41:04,452 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-04-18 07:41:04,452 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 07:41:04,452 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-04-18 07:41:04,452 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-04-18 07:41:04,453 INFO L87 Difference]: Start difference. First operand 10 states and 11 transitions. Second operand 6 states. [2020-04-18 07:41:04,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 07:41:04,495 INFO L93 Difference]: Finished difference Result 6 states and 5 transitions. [2020-04-18 07:41:04,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-04-18 07:41:04,496 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 7 [2020-04-18 07:41:04,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 07:41:04,496 INFO L225 Difference]: With dead ends: 6 [2020-04-18 07:41:04,496 INFO L226 Difference]: Without dead ends: 0 [2020-04-18 07:41:04,497 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2020-04-18 07:41:04,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-04-18 07:41:04,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-04-18 07:41:04,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-04-18 07:41:04,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-04-18 07:41:04,498 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 7 [2020-04-18 07:41:04,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 07:41:04,499 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-04-18 07:41:04,499 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-04-18 07:41:04,499 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-04-18 07:41:04,499 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 07:41:04,503 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.04 07:41:04 BasicIcfg [2020-04-18 07:41:04,503 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-04-18 07:41:04,506 INFO L168 Benchmark]: Toolchain (without parser) took 3406.92 ms. Allocated memory was 141.0 MB in the beginning and 255.3 MB in the end (delta: 114.3 MB). Free memory was 99.4 MB in the beginning and 198.1 MB in the end (delta: -98.7 MB). Peak memory consumption was 15.6 MB. Max. memory is 7.1 GB. [2020-04-18 07:41:04,507 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 141.0 MB. Free memory was 119.0 MB in the beginning and 118.8 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2020-04-18 07:41:04,508 INFO L168 Benchmark]: CACSL2BoogieTranslator took 707.16 ms. Allocated memory was 141.0 MB in the beginning and 200.3 MB in the end (delta: 59.2 MB). Free memory was 97.4 MB in the beginning and 157.4 MB in the end (delta: -60.0 MB). Peak memory consumption was 19.7 MB. Max. memory is 7.1 GB. [2020-04-18 07:41:04,509 INFO L168 Benchmark]: Boogie Procedure Inliner took 64.24 ms. Allocated memory is still 200.3 MB. Free memory was 157.4 MB in the beginning and 155.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. [2020-04-18 07:41:04,510 INFO L168 Benchmark]: Boogie Preprocessor took 21.13 ms. Allocated memory is still 200.3 MB. Free memory was 155.2 MB in the beginning and 153.8 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. [2020-04-18 07:41:04,511 INFO L168 Benchmark]: RCFGBuilder took 612.71 ms. Allocated memory is still 200.3 MB. Free memory was 153.8 MB in the beginning and 120.4 MB in the end (delta: 33.4 MB). Peak memory consumption was 33.4 MB. Max. memory is 7.1 GB. [2020-04-18 07:41:04,511 INFO L168 Benchmark]: TraceAbstraction took 1976.23 ms. Allocated memory was 200.3 MB in the beginning and 255.3 MB in the end (delta: 55.1 MB). Free memory was 120.4 MB in the beginning and 198.1 MB in the end (delta: -77.7 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-04-18 07:41:04,516 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 141.0 MB. Free memory was 119.0 MB in the beginning and 118.8 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 707.16 ms. Allocated memory was 141.0 MB in the beginning and 200.3 MB in the end (delta: 59.2 MB). Free memory was 97.4 MB in the beginning and 157.4 MB in the end (delta: -60.0 MB). Peak memory consumption was 19.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 64.24 ms. Allocated memory is still 200.3 MB. Free memory was 157.4 MB in the beginning and 155.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 21.13 ms. Allocated memory is still 200.3 MB. Free memory was 155.2 MB in the beginning and 153.8 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 612.71 ms. Allocated memory is still 200.3 MB. Free memory was 153.8 MB in the beginning and 120.4 MB in the end (delta: 33.4 MB). Peak memory consumption was 33.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1976.23 ms. Allocated memory was 200.3 MB in the beginning and 255.3 MB in the end (delta: 55.1 MB). Free memory was 120.4 MB in the beginning and 198.1 MB in the end (delta: -77.7 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.1s, 42 ProgramPointsBefore, 14 ProgramPointsAfterwards, 39 TransitionsBefore, 11 TransitionsAfterwards, 240 CoEnabledTransitionPairs, 7 FixpointIterations, 10 TrivialSequentialCompositions, 19 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 6 ConcurrentYvCompositions, 0 ChoiceCompositions, 122 VarBasedMoverChecksPositive, 27 VarBasedMoverChecksNegative, 10 SemBasedMoverChecksPositive, 30 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.2s, 0 MoverChecksTotal, 466 CheckedPairsTotal, 35 TotalNumberOfCompositions - PositiveResult [Line: 698]: 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, 39 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1.8s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.1s, HoareTripleCheckerStatistics: 9 SDtfs, 8 SDslu, 4 SDs, 0 SdLazy, 14 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 27 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=20occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: No data available, 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...