/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-Separate.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe022_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-770125f [2021-05-21 23:37:27,389 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-05-21 23:37:27,392 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-05-21 23:37:27,433 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-05-21 23:37:27,452 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-05-21 23:37:27,454 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-05-21 23:37:27,455 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-05-21 23:37:27,456 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-05-21 23:37:27,460 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-05-21 23:37:27,460 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-05-21 23:37:27,463 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-05-21 23:37:27,470 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-05-21 23:37:27,471 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-05-21 23:37:27,472 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-05-21 23:37:27,473 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-05-21 23:37:27,475 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-05-21 23:37:27,479 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-05-21 23:37:27,487 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-05-21 23:37:27,487 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-05-21 23:37:27,488 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-05-21 23:37:27,491 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-NoLbe-Separate.epf [2021-05-21 23:37:27,529 INFO L113 SettingsManager]: Loading preferences was successful [2021-05-21 23:37:27,529 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-05-21 23:37:27,529 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-05-21 23:37:27,530 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-05-21 23:37:27,532 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-05-21 23:37:27,532 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-05-21 23:37:27,532 INFO L138 SettingsManager]: * Use SBE=true [2021-05-21 23:37:27,533 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-05-21 23:37:27,533 INFO L138 SettingsManager]: * sizeof long=4 [2021-05-21 23:37:27,533 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-05-21 23:37:27,533 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-05-21 23:37:27,534 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-05-21 23:37:27,534 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-05-21 23:37:27,534 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-05-21 23:37:27,534 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-05-21 23:37:27,534 INFO L138 SettingsManager]: * sizeof long double=12 [2021-05-21 23:37:27,534 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-05-21 23:37:27,534 INFO L138 SettingsManager]: * Use constant arrays=true [2021-05-21 23:37:27,534 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-05-21 23:37:27,535 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-05-21 23:37:27,535 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-05-21 23:37:27,535 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-05-21 23:37:27,535 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-05-21 23:37:27,535 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-05-21 23:37:27,535 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-05-21 23:37:27,535 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-05-21 23:37:27,535 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-05-21 23:37:27,536 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-05-21 23:37:27,536 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-05-21 23:37:27,536 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-05-21 23:37:27,536 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-05-21 23:37:27,536 INFO L138 SettingsManager]: * Check the insufficient thread errors last=true [2021-05-21 23:37:27,536 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-05-21 23:37:27,846 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-05-21 23:37:27,868 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-05-21 23:37:27,870 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-05-21 23:37:27,871 INFO L271 PluginConnector]: Initializing CDTParser... [2021-05-21 23:37:27,872 INFO L275 PluginConnector]: CDTParser initialized [2021-05-21 23:37:27,872 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe022_tso.oepc.i [2021-05-21 23:37:27,927 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4fe7197ba/72e9ee688b6a49ffa6b1134710ccc7eb/FLAGa317e87bd [2021-05-21 23:37:28,422 INFO L306 CDTParser]: Found 1 translation units. [2021-05-21 23:37:28,422 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe022_tso.oepc.i [2021-05-21 23:37:28,443 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4fe7197ba/72e9ee688b6a49ffa6b1134710ccc7eb/FLAGa317e87bd [2021-05-21 23:37:28,736 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4fe7197ba/72e9ee688b6a49ffa6b1134710ccc7eb [2021-05-21 23:37:28,738 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-05-21 23:37:28,739 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-05-21 23:37:28,742 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-05-21 23:37:28,742 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-05-21 23:37:28,745 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-05-21 23:37:28,746 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.05 11:37:28" (1/1) ... [2021-05-21 23:37:28,747 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@76c49a7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 11:37:28, skipping insertion in model container [2021-05-21 23:37:28,747 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.05 11:37:28" (1/1) ... [2021-05-21 23:37:28,766 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-05-21 23:37:28,810 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-05-21 23:37:28,929 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe022_tso.oepc.i[950,963] [2021-05-21 23:37:29,102 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-05-21 23:37:29,108 INFO L203 MainTranslator]: Completed pre-run [2021-05-21 23:37:29,118 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe022_tso.oepc.i[950,963] [2021-05-21 23:37:29,138 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-05-21 23:37:29,194 INFO L208 MainTranslator]: Completed translation [2021-05-21 23:37:29,195 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 11:37:29 WrapperNode [2021-05-21 23:37:29,195 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-05-21 23:37:29,196 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-05-21 23:37:29,196 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-05-21 23:37:29,196 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-05-21 23:37:29,201 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 11:37:29" (1/1) ... [2021-05-21 23:37:29,212 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 11:37:29" (1/1) ... [2021-05-21 23:37:29,227 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-05-21 23:37:29,227 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-05-21 23:37:29,227 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-05-21 23:37:29,228 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-05-21 23:37:29,233 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 11:37:29" (1/1) ... [2021-05-21 23:37:29,234 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 11:37:29" (1/1) ... [2021-05-21 23:37:29,245 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 11:37:29" (1/1) ... [2021-05-21 23:37:29,246 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 11:37:29" (1/1) ... [2021-05-21 23:37:29,255 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 11:37:29" (1/1) ... [2021-05-21 23:37:29,258 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 11:37:29" (1/1) ... [2021-05-21 23:37:29,259 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 11:37:29" (1/1) ... [2021-05-21 23:37:29,261 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-05-21 23:37:29,262 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-05-21 23:37:29,262 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-05-21 23:37:29,262 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-05-21 23:37:29,263 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 11:37:29" (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 [2021-05-21 23:37:29,328 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-05-21 23:37:29,329 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-05-21 23:37:29,329 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-05-21 23:37:29,330 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-05-21 23:37:29,331 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-05-21 23:37:29,331 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-05-21 23:37:29,331 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-05-21 23:37:29,332 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-05-21 23:37:29,332 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-05-21 23:37:29,332 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-05-21 23:37:29,332 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-05-21 23:37:29,332 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-05-21 23:37:29,333 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-05-21 23:37:29,682 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-05-21 23:37:29,683 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-05-21 23:37:29,684 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.05 11:37:29 BoogieIcfgContainer [2021-05-21 23:37:29,684 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-05-21 23:37:29,685 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-05-21 23:37:29,686 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-05-21 23:37:29,688 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-05-21 23:37:29,688 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.05 11:37:28" (1/3) ... [2021-05-21 23:37:29,688 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7194af9f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.05 11:37:29, skipping insertion in model container [2021-05-21 23:37:29,689 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 11:37:29" (2/3) ... [2021-05-21 23:37:29,689 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7194af9f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.05 11:37:29, skipping insertion in model container [2021-05-21 23:37:29,689 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.05 11:37:29" (3/3) ... [2021-05-21 23:37:29,690 INFO L111 eAbstractionObserver]: Analyzing ICFG safe022_tso.oepc.i [2021-05-21 23:37:29,694 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-05-21 23:37:29,695 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-05-21 23:37:29,695 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-05-21 23:37:29,695 INFO L478 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-05-21 23:37:29,718 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:37:29,718 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:37:29,718 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:37:29,718 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:37:29,719 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:37:29,719 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:37:29,719 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:37:29,719 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:37:29,719 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:37:29,719 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:37:29,720 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:37:29,720 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:37:29,720 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:37:29,720 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:37:29,720 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:37:29,721 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:37:29,721 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:37:29,721 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:37:29,721 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:37:29,721 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:37:29,721 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:37:29,722 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:37:29,722 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:37:29,722 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:37:29,724 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:37:29,724 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:37:29,724 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:37:29,724 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:37:29,729 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:37:29,729 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:37:29,729 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:37:29,729 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:37:29,731 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-05-21 23:37:29,750 INFO L255 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-05-21 23:37:29,766 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-05-21 23:37:29,766 INFO L379 AbstractCegarLoop]: Hoare is false [2021-05-21 23:37:29,766 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-05-21 23:37:29,766 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-05-21 23:37:29,766 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-05-21 23:37:29,767 INFO L383 AbstractCegarLoop]: Difference is false [2021-05-21 23:37:29,767 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-05-21 23:37:29,767 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-05-21 23:37:29,775 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 72 places, 67 transitions, 144 flow [2021-05-21 23:37:29,834 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 1246 states, 1244 states have (on average 2.695337620578778) internal successors, (3353), 1245 states have internal predecessors, (3353), 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) [2021-05-21 23:37:29,838 INFO L276 IsEmpty]: Start isEmpty. Operand has 1246 states, 1244 states have (on average 2.695337620578778) internal successors, (3353), 1245 states have internal predecessors, (3353), 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) [2021-05-21 23:37:29,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-05-21 23:37:29,853 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:37:29,854 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:37:29,854 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:37:29,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:37:29,858 INFO L82 PathProgramCache]: Analyzing trace with hash -593502858, now seen corresponding path program 1 times [2021-05-21 23:37:29,864 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:37:29,865 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2135833677] [2021-05-21 23:37:29,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:37:30,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:37:30,310 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:37:30,310 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:37:30,311 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2135833677] [2021-05-21 23:37:30,311 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2135833677] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:37:30,311 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:37:30,312 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-05-21 23:37:30,312 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2044635911] [2021-05-21 23:37:30,315 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-05-21 23:37:30,316 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:37:30,330 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-05-21 23:37:30,331 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-05-21 23:37:30,335 INFO L87 Difference]: Start difference. First operand has 1246 states, 1244 states have (on average 2.695337620578778) internal successors, (3353), 1245 states have internal predecessors, (3353), 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 7 states, 7 states have (on average 5.857142857142857) internal successors, (41), 7 states have internal predecessors, (41), 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) [2021-05-21 23:37:30,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:37:30,610 INFO L93 Difference]: Finished difference Result 1589 states and 4123 transitions. [2021-05-21 23:37:30,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-05-21 23:37:30,612 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.857142857142857) internal successors, (41), 7 states have internal predecessors, (41), 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 41 [2021-05-21 23:37:30,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:37:30,633 INFO L225 Difference]: With dead ends: 1589 [2021-05-21 23:37:30,633 INFO L226 Difference]: Without dead ends: 672 [2021-05-21 23:37:30,634 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 243.0ms TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2021-05-21 23:37:30,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 672 states. [2021-05-21 23:37:30,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 672 to 672. [2021-05-21 23:37:30,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 672 states, 671 states have (on average 2.511177347242921) internal successors, (1685), 671 states have internal predecessors, (1685), 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) [2021-05-21 23:37:30,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 672 states to 672 states and 1685 transitions. [2021-05-21 23:37:30,723 INFO L78 Accepts]: Start accepts. Automaton has 672 states and 1685 transitions. Word has length 41 [2021-05-21 23:37:30,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:37:30,724 INFO L482 AbstractCegarLoop]: Abstraction has 672 states and 1685 transitions. [2021-05-21 23:37:30,724 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 5.857142857142857) internal successors, (41), 7 states have internal predecessors, (41), 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) [2021-05-21 23:37:30,725 INFO L276 IsEmpty]: Start isEmpty. Operand 672 states and 1685 transitions. [2021-05-21 23:37:30,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-05-21 23:37:30,730 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:37:30,730 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:37:30,731 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-05-21 23:37:30,731 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:37:30,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:37:30,735 INFO L82 PathProgramCache]: Analyzing trace with hash -1221235819, now seen corresponding path program 1 times [2021-05-21 23:37:30,735 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:37:30,735 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [554155194] [2021-05-21 23:37:30,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:37:30,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:37:30,924 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:37:30,925 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:37:30,926 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [554155194] [2021-05-21 23:37:30,929 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [554155194] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:37:30,932 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:37:30,932 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-05-21 23:37:30,933 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1079358028] [2021-05-21 23:37:30,937 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-05-21 23:37:30,937 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:37:30,938 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-05-21 23:37:30,938 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-05-21 23:37:30,938 INFO L87 Difference]: Start difference. First operand 672 states and 1685 transitions. Second operand has 7 states, 7 states have (on average 6.142857142857143) internal successors, (43), 7 states have internal predecessors, (43), 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) [2021-05-21 23:37:31,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:37:31,379 INFO L93 Difference]: Finished difference Result 826 states and 2059 transitions. [2021-05-21 23:37:31,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 23:37:31,380 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.142857142857143) internal successors, (43), 7 states have internal predecessors, (43), 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 43 [2021-05-21 23:37:31,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:37:31,385 INFO L225 Difference]: With dead ends: 826 [2021-05-21 23:37:31,385 INFO L226 Difference]: Without dead ends: 686 [2021-05-21 23:37:31,386 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 457.2ms TimeCoverageRelationStatistics Valid=106, Invalid=236, Unknown=0, NotChecked=0, Total=342 [2021-05-21 23:37:31,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 686 states. [2021-05-21 23:37:31,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 686 to 686. [2021-05-21 23:37:31,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 686 states, 685 states have (on average 2.5036496350364965) internal successors, (1715), 685 states have internal predecessors, (1715), 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) [2021-05-21 23:37:31,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 686 states to 686 states and 1715 transitions. [2021-05-21 23:37:31,410 INFO L78 Accepts]: Start accepts. Automaton has 686 states and 1715 transitions. Word has length 43 [2021-05-21 23:37:31,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:37:31,411 INFO L482 AbstractCegarLoop]: Abstraction has 686 states and 1715 transitions. [2021-05-21 23:37:31,412 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 6.142857142857143) internal successors, (43), 7 states have internal predecessors, (43), 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) [2021-05-21 23:37:31,412 INFO L276 IsEmpty]: Start isEmpty. Operand 686 states and 1715 transitions. [2021-05-21 23:37:31,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-05-21 23:37:31,415 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:37:31,416 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:37:31,416 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-05-21 23:37:31,416 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:37:31,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:37:31,423 INFO L82 PathProgramCache]: Analyzing trace with hash -1606589287, now seen corresponding path program 1 times [2021-05-21 23:37:31,423 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:37:31,424 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1843512552] [2021-05-21 23:37:31,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:37:31,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:37:31,618 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:37:31,618 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:37:31,618 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1843512552] [2021-05-21 23:37:31,618 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1843512552] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:37:31,618 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:37:31,618 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-05-21 23:37:31,619 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1769807947] [2021-05-21 23:37:31,619 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-05-21 23:37:31,619 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:37:31,620 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-05-21 23:37:31,620 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-05-21 23:37:31,620 INFO L87 Difference]: Start difference. First operand 686 states and 1715 transitions. Second operand has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 7 states have internal predecessors, (44), 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) [2021-05-21 23:37:31,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:37:31,826 INFO L93 Difference]: Finished difference Result 854 states and 2113 transitions. [2021-05-21 23:37:31,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-05-21 23:37:31,827 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 7 states have internal predecessors, (44), 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 44 [2021-05-21 23:37:31,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:37:31,829 INFO L225 Difference]: With dead ends: 854 [2021-05-21 23:37:31,829 INFO L226 Difference]: Without dead ends: 462 [2021-05-21 23:37:31,830 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 239.6ms TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2021-05-21 23:37:31,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 462 states. [2021-05-21 23:37:31,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 462 to 462. [2021-05-21 23:37:31,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 462 states, 461 states have (on average 2.3600867678958783) internal successors, (1088), 461 states have internal predecessors, (1088), 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) [2021-05-21 23:37:31,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 462 states to 462 states and 1088 transitions. [2021-05-21 23:37:31,840 INFO L78 Accepts]: Start accepts. Automaton has 462 states and 1088 transitions. Word has length 44 [2021-05-21 23:37:31,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:37:31,840 INFO L482 AbstractCegarLoop]: Abstraction has 462 states and 1088 transitions. [2021-05-21 23:37:31,841 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 7 states have internal predecessors, (44), 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) [2021-05-21 23:37:31,841 INFO L276 IsEmpty]: Start isEmpty. Operand 462 states and 1088 transitions. [2021-05-21 23:37:31,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-05-21 23:37:31,842 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:37:31,842 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:37:31,842 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-05-21 23:37:31,842 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:37:31,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:37:31,843 INFO L82 PathProgramCache]: Analyzing trace with hash 1115548116, now seen corresponding path program 1 times [2021-05-21 23:37:31,843 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:37:31,843 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1479775946] [2021-05-21 23:37:31,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:37:31,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:37:31,950 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:37:31,950 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:37:31,950 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1479775946] [2021-05-21 23:37:31,951 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1479775946] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:37:31,951 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:37:31,951 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-05-21 23:37:31,951 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [617364945] [2021-05-21 23:37:31,951 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-05-21 23:37:31,951 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:37:31,952 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-05-21 23:37:31,952 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-05-21 23:37:31,952 INFO L87 Difference]: Start difference. First operand 462 states and 1088 transitions. Second operand has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 6 states have internal predecessors, (46), 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) [2021-05-21 23:37:32,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:37:32,108 INFO L93 Difference]: Finished difference Result 536 states and 1245 transitions. [2021-05-21 23:37:32,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-05-21 23:37:32,109 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 6 states have internal predecessors, (46), 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 46 [2021-05-21 23:37:32,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:37:32,111 INFO L225 Difference]: With dead ends: 536 [2021-05-21 23:37:32,111 INFO L226 Difference]: Without dead ends: 400 [2021-05-21 23:37:32,112 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 146.3ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-05-21 23:37:32,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 400 states. [2021-05-21 23:37:32,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 400 to 400. [2021-05-21 23:37:32,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 400 states, 399 states have (on average 2.2982456140350878) internal successors, (917), 399 states have internal predecessors, (917), 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) [2021-05-21 23:37:32,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 400 states to 400 states and 917 transitions. [2021-05-21 23:37:32,120 INFO L78 Accepts]: Start accepts. Automaton has 400 states and 917 transitions. Word has length 46 [2021-05-21 23:37:32,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:37:32,121 INFO L482 AbstractCegarLoop]: Abstraction has 400 states and 917 transitions. [2021-05-21 23:37:32,121 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 6 states have internal predecessors, (46), 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) [2021-05-21 23:37:32,121 INFO L276 IsEmpty]: Start isEmpty. Operand 400 states and 917 transitions. [2021-05-21 23:37:32,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-05-21 23:37:32,122 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:37:32,122 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:37:32,122 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-05-21 23:37:32,122 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:37:32,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:37:32,122 INFO L82 PathProgramCache]: Analyzing trace with hash 884554647, now seen corresponding path program 1 times [2021-05-21 23:37:32,123 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:37:32,123 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1000859520] [2021-05-21 23:37:32,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:37:32,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:37:32,224 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:37:32,225 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:37:32,225 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1000859520] [2021-05-21 23:37:32,225 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1000859520] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:37:32,225 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:37:32,225 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-05-21 23:37:32,225 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1267360108] [2021-05-21 23:37:32,225 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-05-21 23:37:32,226 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:37:32,226 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-05-21 23:37:32,226 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-05-21 23:37:32,226 INFO L87 Difference]: Start difference. First operand 400 states and 917 transitions. Second operand has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 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) [2021-05-21 23:37:32,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:37:32,369 INFO L93 Difference]: Finished difference Result 367 states and 808 transitions. [2021-05-21 23:37:32,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-05-21 23:37:32,369 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 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 47 [2021-05-21 23:37:32,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:37:32,371 INFO L225 Difference]: With dead ends: 367 [2021-05-21 23:37:32,371 INFO L226 Difference]: Without dead ends: 271 [2021-05-21 23:37:32,371 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 145.6ms TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2021-05-21 23:37:32,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 271 states. [2021-05-21 23:37:32,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 271 to 271. [2021-05-21 23:37:32,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 271 states, 270 states have (on average 2.1222222222222222) internal successors, (573), 270 states have internal predecessors, (573), 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) [2021-05-21 23:37:32,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 271 states to 271 states and 573 transitions. [2021-05-21 23:37:32,377 INFO L78 Accepts]: Start accepts. Automaton has 271 states and 573 transitions. Word has length 47 [2021-05-21 23:37:32,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:37:32,377 INFO L482 AbstractCegarLoop]: Abstraction has 271 states and 573 transitions. [2021-05-21 23:37:32,378 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 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) [2021-05-21 23:37:32,378 INFO L276 IsEmpty]: Start isEmpty. Operand 271 states and 573 transitions. [2021-05-21 23:37:32,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-05-21 23:37:32,378 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:37:32,378 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:37:32,379 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-05-21 23:37:32,379 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:37:32,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:37:32,379 INFO L82 PathProgramCache]: Analyzing trace with hash -438162122, now seen corresponding path program 1 times [2021-05-21 23:37:32,379 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:37:32,379 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1751130258] [2021-05-21 23:37:32,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:37:32,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:37:32,482 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:37:32,482 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:37:32,482 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1751130258] [2021-05-21 23:37:32,482 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1751130258] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:37:32,483 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:37:32,483 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-05-21 23:37:32,483 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [523580159] [2021-05-21 23:37:32,484 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-05-21 23:37:32,484 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:37:32,484 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-05-21 23:37:32,487 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-05-21 23:37:32,487 INFO L87 Difference]: Start difference. First operand 271 states and 573 transitions. Second operand has 7 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 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) [2021-05-21 23:37:32,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:37:32,557 INFO L93 Difference]: Finished difference Result 253 states and 531 transitions. [2021-05-21 23:37:32,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-05-21 23:37:32,558 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 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 49 [2021-05-21 23:37:32,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:37:32,559 INFO L225 Difference]: With dead ends: 253 [2021-05-21 23:37:32,559 INFO L226 Difference]: Without dead ends: 0 [2021-05-21 23:37:32,559 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 96.9ms TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-05-21 23:37:32,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-05-21 23:37:32,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-05-21 23:37:32,560 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) [2021-05-21 23:37:32,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-05-21 23:37:32,560 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 49 [2021-05-21 23:37:32,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:37:32,560 INFO L482 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-05-21 23:37:32,560 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 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) [2021-05-21 23:37:32,560 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-05-21 23:37:32,560 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-05-21 23:37:32,560 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-05-21 23:37:32,561 INFO L315 ceAbstractionStarter]: Result for error location AllErrorsAtOnce was SAFE (1/2) [2021-05-21 23:37:32,562 INFO L255 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-05-21 23:37:32,563 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-05-21 23:37:32,563 INFO L379 AbstractCegarLoop]: Hoare is false [2021-05-21 23:37:32,564 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-05-21 23:37:32,564 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-05-21 23:37:32,564 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-05-21 23:37:32,564 INFO L383 AbstractCegarLoop]: Difference is false [2021-05-21 23:37:32,564 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-05-21 23:37:32,564 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == InUseError======== [2021-05-21 23:37:32,570 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 72 places, 67 transitions, 144 flow [2021-05-21 23:37:32,596 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 1246 states, 1244 states have (on average 2.695337620578778) internal successors, (3353), 1245 states have internal predecessors, (3353), 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) [2021-05-21 23:37:32,599 INFO L276 IsEmpty]: Start isEmpty. Operand has 1246 states, 1244 states have (on average 2.695337620578778) internal successors, (3353), 1245 states have internal predecessors, (3353), 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) [2021-05-21 23:37:32,603 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-05-21 23:37:32,604 INFO L315 ceAbstractionStarter]: Result for error location InUseError was SAFE (2/2) [2021-05-21 23:37:32,604 INFO L246 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-05-21 23:37:32,606 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.05 11:37:32 BasicIcfg [2021-05-21 23:37:32,606 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-05-21 23:37:32,607 INFO L168 Benchmark]: Toolchain (without parser) took 3867.41 ms. Allocated memory is still 341.8 MB. Free memory was 304.7 MB in the beginning and 174.4 MB in the end (delta: 130.3 MB). Peak memory consumption was 133.2 MB. Max. memory is 16.0 GB. [2021-05-21 23:37:32,607 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 341.8 MB. Free memory is still 322.5 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-05-21 23:37:32,608 INFO L168 Benchmark]: CACSL2BoogieTranslator took 453.06 ms. Allocated memory is still 341.8 MB. Free memory was 304.4 MB in the beginning and 305.1 MB in the end (delta: -646.7 kB). Peak memory consumption was 9.2 MB. Max. memory is 16.0 GB. [2021-05-21 23:37:32,609 INFO L168 Benchmark]: Boogie Procedure Inliner took 31.15 ms. Allocated memory is still 341.8 MB. Free memory was 305.1 MB in the beginning and 304.0 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-05-21 23:37:32,610 INFO L168 Benchmark]: Boogie Preprocessor took 33.78 ms. Allocated memory is still 341.8 MB. Free memory was 304.0 MB in the beginning and 301.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-05-21 23:37:32,612 INFO L168 Benchmark]: RCFGBuilder took 422.57 ms. Allocated memory is still 341.8 MB. Free memory was 301.9 MB in the beginning and 278.9 MB in the end (delta: 23.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. [2021-05-21 23:37:32,612 INFO L168 Benchmark]: TraceAbstraction took 2920.84 ms. Allocated memory is still 341.8 MB. Free memory was 278.9 MB in the beginning and 174.4 MB in the end (delta: 104.5 MB). Peak memory consumption was 106.6 MB. Max. memory is 16.0 GB. [2021-05-21 23:37:32,617 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 341.8 MB. Free memory is still 322.5 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 453.06 ms. Allocated memory is still 341.8 MB. Free memory was 304.4 MB in the beginning and 305.1 MB in the end (delta: -646.7 kB). Peak memory consumption was 9.2 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 31.15 ms. Allocated memory is still 341.8 MB. Free memory was 305.1 MB in the beginning and 304.0 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 33.78 ms. Allocated memory is still 341.8 MB. Free memory was 304.0 MB in the beginning and 301.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 422.57 ms. Allocated memory is still 341.8 MB. Free memory was 301.9 MB in the beginning and 278.9 MB in the end (delta: 23.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. * TraceAbstraction took 2920.84 ms. Allocated memory is still 341.8 MB. Free memory was 278.9 MB in the beginning and 174.4 MB in the end (delta: 104.5 MB). Peak memory consumption was 106.6 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 82 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2796.8ms, OverallIterations: 6, TraceHistogramMax: 1, EmptinessCheckTime: 30.2ms, AutomataDifference: 1357.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 67.1ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 466 SDtfs, 635 SDslu, 1629 SDs, 0 SdLazy, 191 SolverSat, 24 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 224.1ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 80 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 103 ImplicationChecksByTransitivity, 1328.9ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=1246occurred in iteration=0, InterpolantAutomatonStates: 62, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 126.0ms AutomataMinimizationTime, 6 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 18.1ms SsaConstructionTime, 152.0ms SatisfiabilityAnalysisTime, 865.9ms InterpolantComputationTime, 270 NumberOfCodeBlocks, 270 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 264 ConstructedInterpolants, 0 QuantifiedInterpolants, 952 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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 - StatisticsResult: Ultimate Automizer benchmark data for thread instance sufficiency with 1 thread instances CFG has 5 procedures, 82 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 40.1ms, OverallIterations: 0, TraceHistogramMax: 0, EmptinessCheckTime: 6.6ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 32.8ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=1246occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! Received shutdown request...