/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.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe035_rmo.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-7cd14b8b9f04096d8ddfd3d9cd8a4ac590fe5404-7cd14b8 [2021-03-10 17:36:16,336 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-10 17:36:16,339 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-10 17:36:16,375 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-03-10 17:36:16,394 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-10 17:36:16,396 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-10 17:36:16,397 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-10 17:36:16,398 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-10 17:36:16,401 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-10 17:36:16,402 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-10 17:36:16,404 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-10 17:36:16,412 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-10 17:36:16,413 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-10 17:36:16,414 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-10 17:36:16,415 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-10 17:36:16,417 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-10 17:36:16,423 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-03-10 17:36:16,431 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-10 17:36:16,432 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-10 17:36:16,432 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-10 17:36:16,433 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.epf [2021-03-10 17:36:16,467 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-10 17:36:16,468 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-10 17:36:16,468 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-03-10 17:36:16,468 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-03-10 17:36:16,471 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-10 17:36:16,472 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-10 17:36:16,472 INFO L138 SettingsManager]: * Use SBE=true [2021-03-10 17:36:16,472 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-10 17:36:16,472 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-10 17:36:16,472 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-10 17:36:16,473 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-10 17:36:16,473 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-10 17:36:16,473 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-10 17:36:16,473 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-10 17:36:16,474 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-10 17:36:16,474 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-10 17:36:16,474 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-10 17:36:16,474 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-10 17:36:16,474 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-10 17:36:16,474 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-10 17:36:16,474 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-10 17:36:16,475 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-10 17:36:16,475 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-10 17:36:16,475 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-10 17:36:16,475 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-10 17:36:16,475 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-10 17:36:16,475 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-10 17:36:16,475 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-10 17:36:16,476 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-10 17:36:16,476 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-03-10 17:36:16,476 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-03-10 17:36:16,476 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-10 17:36:16,807 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-10 17:36:16,831 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-10 17:36:16,833 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-10 17:36:16,835 INFO L271 PluginConnector]: Initializing CDTParser... [2021-03-10 17:36:16,835 INFO L275 PluginConnector]: CDTParser initialized [2021-03-10 17:36:16,836 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe035_rmo.oepc.i [2021-03-10 17:36:16,904 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ff8f79b84/c4753ead68a0490d8eed1add315fe11f/FLAG0b4a2ce92 [2021-03-10 17:36:17,337 INFO L306 CDTParser]: Found 1 translation units. [2021-03-10 17:36:17,338 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe035_rmo.oepc.i [2021-03-10 17:36:17,366 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ff8f79b84/c4753ead68a0490d8eed1add315fe11f/FLAG0b4a2ce92 [2021-03-10 17:36:17,863 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ff8f79b84/c4753ead68a0490d8eed1add315fe11f [2021-03-10 17:36:17,865 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-10 17:36:17,869 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-03-10 17:36:17,870 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-03-10 17:36:17,870 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-03-10 17:36:17,875 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-03-10 17:36:17,876 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.03 05:36:17" (1/1) ... [2021-03-10 17:36:17,877 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@dec836b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 05:36:17, skipping insertion in model container [2021-03-10 17:36:17,877 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.03 05:36:17" (1/1) ... [2021-03-10 17:36:17,883 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-03-10 17:36:17,916 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-03-10 17:36:18,024 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe035_rmo.oepc.i[950,963] [2021-03-10 17:36:18,216 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-10 17:36:18,225 INFO L203 MainTranslator]: Completed pre-run [2021-03-10 17:36:18,234 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe035_rmo.oepc.i[950,963] [2021-03-10 17:36:18,278 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-10 17:36:18,348 INFO L208 MainTranslator]: Completed translation [2021-03-10 17:36:18,348 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 05:36:18 WrapperNode [2021-03-10 17:36:18,349 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-03-10 17:36:18,350 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-10 17:36:18,350 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-10 17:36:18,351 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-10 17:36:18,356 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 05:36:18" (1/1) ... [2021-03-10 17:36:18,386 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 05:36:18" (1/1) ... [2021-03-10 17:36:18,405 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-10 17:36:18,406 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-10 17:36:18,406 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-10 17:36:18,406 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-10 17:36:18,413 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 05:36:18" (1/1) ... [2021-03-10 17:36:18,413 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 05:36:18" (1/1) ... [2021-03-10 17:36:18,423 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 05:36:18" (1/1) ... [2021-03-10 17:36:18,424 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 05:36:18" (1/1) ... [2021-03-10 17:36:18,433 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 05:36:18" (1/1) ... [2021-03-10 17:36:18,434 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 05:36:18" (1/1) ... [2021-03-10 17:36:18,436 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 05:36:18" (1/1) ... [2021-03-10 17:36:18,438 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-10 17:36:18,439 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-10 17:36:18,439 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-10 17:36:18,439 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-10 17:36:18,439 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 05:36:18" (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 [2021-03-10 17:36:18,496 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-03-10 17:36:18,496 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-03-10 17:36:18,496 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-03-10 17:36:18,497 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-03-10 17:36:18,497 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-03-10 17:36:18,499 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-03-10 17:36:18,499 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-03-10 17:36:18,499 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-03-10 17:36:18,499 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-03-10 17:36:18,499 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-03-10 17:36:18,499 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-03-10 17:36:18,499 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-03-10 17:36:18,500 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-10 17:36:18,500 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-10 17:36:18,501 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-03-10 17:36:18,892 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-10 17:36:18,893 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-03-10 17:36:18,894 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.03 05:36:18 BoogieIcfgContainer [2021-03-10 17:36:18,894 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-10 17:36:18,895 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-10 17:36:18,895 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-10 17:36:18,898 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-10 17:36:18,898 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.03 05:36:17" (1/3) ... [2021-03-10 17:36:18,898 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@720e4345 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.03 05:36:18, skipping insertion in model container [2021-03-10 17:36:18,899 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 05:36:18" (2/3) ... [2021-03-10 17:36:18,899 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@720e4345 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.03 05:36:18, skipping insertion in model container [2021-03-10 17:36:18,899 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.03 05:36:18" (3/3) ... [2021-03-10 17:36:18,900 INFO L111 eAbstractionObserver]: Analyzing ICFG safe035_rmo.oepc.i [2021-03-10 17:36:18,904 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-03-10 17:36:18,904 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-10 17:36:18,908 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-03-10 17:36:18,908 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-10 17:36:18,932 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:36:18,933 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:36:18,933 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:36:18,933 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:36:18,933 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:36:18,933 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:36:18,933 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:36:18,934 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:36:18,934 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:36:18,934 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:36:18,934 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:36:18,934 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:36:18,935 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:36:18,935 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:36:18,935 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:36:18,935 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:36:18,935 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:36:18,935 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:36:18,936 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:36:18,936 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:36:18,936 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:36:18,936 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:36:18,936 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:36:18,936 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:36:18,937 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:36:18,937 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:36:18,937 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:36:18,937 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:36:18,937 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:36:18,937 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:36:18,938 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:36:18,938 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:36:18,938 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:36:18,938 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:36:18,938 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:36:18,938 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:36:18,940 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:36:18,940 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:36:18,940 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:36:18,940 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:36:18,944 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:36:18,944 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:36:18,945 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:36:18,945 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:36:18,946 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:36:18,947 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:36:18,947 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:36:18,947 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:36:18,949 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-10 17:36:18,962 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-03-10 17:36:18,977 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-10 17:36:18,977 INFO L377 AbstractCegarLoop]: Hoare is true [2021-03-10 17:36:18,977 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-10 17:36:18,977 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-10 17:36:18,977 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-10 17:36:18,977 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-10 17:36:18,978 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-10 17:36:18,978 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-10 17:36:18,986 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 83 places, 75 transitions, 165 flow [2021-03-10 17:36:19,654 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 8819 states, 8817 states have (on average 3.5808097992514463) internal successors, (31572), 8818 states have internal predecessors, (31572), 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) [2021-03-10 17:36:19,694 INFO L276 IsEmpty]: Start isEmpty. Operand has 8819 states, 8817 states have (on average 3.5808097992514463) internal successors, (31572), 8818 states have internal predecessors, (31572), 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) [2021-03-10 17:36:19,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-03-10 17:36:19,729 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:36:19,730 INFO L519 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] [2021-03-10 17:36:19,730 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:36:19,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:36:19,734 INFO L82 PathProgramCache]: Analyzing trace with hash 1450915912, now seen corresponding path program 1 times [2021-03-10 17:36:19,741 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:36:19,741 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [724126625] [2021-03-10 17:36:19,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:36:19,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:36:20,185 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:36:20,185 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [724126625] [2021-03-10 17:36:20,186 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:36:20,186 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-10 17:36:20,186 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1375707105] [2021-03-10 17:36:20,190 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-10 17:36:20,190 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:36:20,201 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-10 17:36:20,202 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-03-10 17:36:20,226 INFO L87 Difference]: Start difference. First operand has 8819 states, 8817 states have (on average 3.5808097992514463) internal successors, (31572), 8818 states have internal predecessors, (31572), 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 5.714285714285714) internal successors, (40), 7 states have internal predecessors, (40), 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) [2021-03-10 17:36:20,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:36:20,866 INFO L93 Difference]: Finished difference Result 14390 states and 49201 transitions. [2021-03-10 17:36:20,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-10 17:36:20,869 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.714285714285714) internal successors, (40), 7 states have internal predecessors, (40), 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 40 [2021-03-10 17:36:20,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:36:20,920 INFO L225 Difference]: With dead ends: 14390 [2021-03-10 17:36:20,920 INFO L226 Difference]: Without dead ends: 3445 [2021-03-10 17:36:20,921 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 348.4ms TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2021-03-10 17:36:20,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3445 states. [2021-03-10 17:36:21,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3445 to 2965. [2021-03-10 17:36:21,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2965 states, 2964 states have (on average 3.282388663967611) internal successors, (9729), 2964 states have internal predecessors, (9729), 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) [2021-03-10 17:36:21,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2965 states to 2965 states and 9729 transitions. [2021-03-10 17:36:21,157 INFO L78 Accepts]: Start accepts. Automaton has 2965 states and 9729 transitions. Word has length 40 [2021-03-10 17:36:21,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:36:21,159 INFO L480 AbstractCegarLoop]: Abstraction has 2965 states and 9729 transitions. [2021-03-10 17:36:21,160 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 5.714285714285714) internal successors, (40), 7 states have internal predecessors, (40), 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) [2021-03-10 17:36:21,162 INFO L276 IsEmpty]: Start isEmpty. Operand 2965 states and 9729 transitions. [2021-03-10 17:36:21,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-03-10 17:36:21,171 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:36:21,171 INFO L519 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] [2021-03-10 17:36:21,176 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-10 17:36:21,177 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:36:21,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:36:21,179 INFO L82 PathProgramCache]: Analyzing trace with hash -1240432320, now seen corresponding path program 1 times [2021-03-10 17:36:21,179 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:36:21,180 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1035408694] [2021-03-10 17:36:21,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:36:21,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:36:21,360 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:36:21,360 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1035408694] [2021-03-10 17:36:21,361 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:36:21,361 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-10 17:36:21,361 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [518555124] [2021-03-10 17:36:21,362 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-10 17:36:21,362 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:36:21,375 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-10 17:36:21,376 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-03-10 17:36:21,376 INFO L87 Difference]: Start difference. First operand 2965 states and 9729 transitions. Second operand has 6 states, 6 states have (on average 7.5) internal successors, (45), 6 states have internal predecessors, (45), 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) [2021-03-10 17:36:21,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:36:21,653 INFO L93 Difference]: Finished difference Result 3785 states and 12195 transitions. [2021-03-10 17:36:21,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-10 17:36:21,654 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 6 states have internal predecessors, (45), 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 45 [2021-03-10 17:36:21,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:36:21,669 INFO L225 Difference]: With dead ends: 3785 [2021-03-10 17:36:21,669 INFO L226 Difference]: Without dead ends: 2637 [2021-03-10 17:36:21,670 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 186.3ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-03-10 17:36:21,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2637 states. [2021-03-10 17:36:21,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2637 to 2637. [2021-03-10 17:36:21,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2637 states, 2636 states have (on average 3.2177541729893777) internal successors, (8482), 2636 states have internal predecessors, (8482), 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) [2021-03-10 17:36:21,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2637 states to 2637 states and 8482 transitions. [2021-03-10 17:36:21,763 INFO L78 Accepts]: Start accepts. Automaton has 2637 states and 8482 transitions. Word has length 45 [2021-03-10 17:36:21,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:36:21,764 INFO L480 AbstractCegarLoop]: Abstraction has 2637 states and 8482 transitions. [2021-03-10 17:36:21,764 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 6 states have internal predecessors, (45), 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) [2021-03-10 17:36:21,765 INFO L276 IsEmpty]: Start isEmpty. Operand 2637 states and 8482 transitions. [2021-03-10 17:36:21,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-03-10 17:36:21,773 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:36:21,773 INFO L519 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] [2021-03-10 17:36:21,774 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-10 17:36:21,774 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:36:21,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:36:21,774 INFO L82 PathProgramCache]: Analyzing trace with hash 572163811, now seen corresponding path program 1 times [2021-03-10 17:36:21,775 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:36:21,775 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1858269645] [2021-03-10 17:36:21,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:36:21,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:36:21,914 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:36:21,915 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1858269645] [2021-03-10 17:36:21,915 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:36:21,915 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-10 17:36:21,915 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [325760865] [2021-03-10 17:36:21,916 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-10 17:36:21,916 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:36:21,917 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-10 17:36:21,917 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-03-10 17:36:21,917 INFO L87 Difference]: Start difference. First operand 2637 states and 8482 transitions. Second operand has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 7 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) [2021-03-10 17:36:22,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:36:22,121 INFO L93 Difference]: Finished difference Result 2739 states and 8526 transitions. [2021-03-10 17:36:22,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-10 17:36:22,122 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 7 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 [2021-03-10 17:36:22,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:36:22,131 INFO L225 Difference]: With dead ends: 2739 [2021-03-10 17:36:22,131 INFO L226 Difference]: Without dead ends: 1815 [2021-03-10 17:36:22,131 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 166.5ms TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2021-03-10 17:36:22,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1815 states. [2021-03-10 17:36:22,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1815 to 1791. [2021-03-10 17:36:22,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1791 states, 1790 states have (on average 3.053072625698324) internal successors, (5465), 1790 states have internal predecessors, (5465), 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) [2021-03-10 17:36:22,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1791 states to 1791 states and 5465 transitions. [2021-03-10 17:36:22,183 INFO L78 Accepts]: Start accepts. Automaton has 1791 states and 5465 transitions. Word has length 46 [2021-03-10 17:36:22,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:36:22,183 INFO L480 AbstractCegarLoop]: Abstraction has 1791 states and 5465 transitions. [2021-03-10 17:36:22,183 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 7 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) [2021-03-10 17:36:22,184 INFO L276 IsEmpty]: Start isEmpty. Operand 1791 states and 5465 transitions. [2021-03-10 17:36:22,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-03-10 17:36:22,187 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:36:22,187 INFO L519 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] [2021-03-10 17:36:22,187 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-03-10 17:36:22,188 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:36:22,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:36:22,190 INFO L82 PathProgramCache]: Analyzing trace with hash -1964131836, now seen corresponding path program 1 times [2021-03-10 17:36:22,190 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:36:22,190 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1772444473] [2021-03-10 17:36:22,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:36:22,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:36:22,288 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:36:22,288 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1772444473] [2021-03-10 17:36:22,288 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:36:22,288 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-10 17:36:22,289 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [790843494] [2021-03-10 17:36:22,289 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-10 17:36:22,289 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:36:22,290 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-10 17:36:22,290 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-03-10 17:36:22,290 INFO L87 Difference]: Start difference. First operand 1791 states and 5465 transitions. Second operand has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 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) [2021-03-10 17:36:22,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:36:22,373 INFO L93 Difference]: Finished difference Result 2859 states and 8734 transitions. [2021-03-10 17:36:22,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-10 17:36:22,374 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 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 48 [2021-03-10 17:36:22,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:36:22,384 INFO L225 Difference]: With dead ends: 2859 [2021-03-10 17:36:22,385 INFO L226 Difference]: Without dead ends: 1731 [2021-03-10 17:36:22,385 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 68.2ms TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-03-10 17:36:22,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1731 states. [2021-03-10 17:36:22,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1731 to 1731. [2021-03-10 17:36:22,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1731 states, 1730 states have (on average 3.053757225433526) internal successors, (5283), 1730 states have internal predecessors, (5283), 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) [2021-03-10 17:36:22,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1731 states to 1731 states and 5283 transitions. [2021-03-10 17:36:22,476 INFO L78 Accepts]: Start accepts. Automaton has 1731 states and 5283 transitions. Word has length 48 [2021-03-10 17:36:22,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:36:22,476 INFO L480 AbstractCegarLoop]: Abstraction has 1731 states and 5283 transitions. [2021-03-10 17:36:22,477 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 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) [2021-03-10 17:36:22,477 INFO L276 IsEmpty]: Start isEmpty. Operand 1731 states and 5283 transitions. [2021-03-10 17:36:22,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-03-10 17:36:22,480 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:36:22,481 INFO L519 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] [2021-03-10 17:36:22,481 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-03-10 17:36:22,481 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:36:22,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:36:22,482 INFO L82 PathProgramCache]: Analyzing trace with hash -153741974, now seen corresponding path program 2 times [2021-03-10 17:36:22,482 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:36:22,482 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [332466042] [2021-03-10 17:36:22,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:36:22,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:36:22,580 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:36:22,581 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [332466042] [2021-03-10 17:36:22,581 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:36:22,581 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-10 17:36:22,581 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [344329184] [2021-03-10 17:36:22,582 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-10 17:36:22,582 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:36:22,582 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-10 17:36:22,582 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-03-10 17:36:22,583 INFO L87 Difference]: Start difference. First operand 1731 states and 5283 transitions. Second operand has 8 states, 8 states have (on average 6.0) internal successors, (48), 8 states have internal predecessors, (48), 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) [2021-03-10 17:36:22,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:36:22,746 INFO L93 Difference]: Finished difference Result 1371 states and 4029 transitions. [2021-03-10 17:36:22,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-10 17:36:22,747 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.0) internal successors, (48), 8 states have internal predecessors, (48), 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 48 [2021-03-10 17:36:22,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:36:22,751 INFO L225 Difference]: With dead ends: 1371 [2021-03-10 17:36:22,751 INFO L226 Difference]: Without dead ends: 807 [2021-03-10 17:36:22,751 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 129.3ms TimeCoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210 [2021-03-10 17:36:22,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 807 states. [2021-03-10 17:36:22,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 807 to 775. [2021-03-10 17:36:22,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 775 states, 774 states have (on average 2.8320413436692506) internal successors, (2192), 774 states have internal predecessors, (2192), 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) [2021-03-10 17:36:22,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 775 states to 775 states and 2192 transitions. [2021-03-10 17:36:22,771 INFO L78 Accepts]: Start accepts. Automaton has 775 states and 2192 transitions. Word has length 48 [2021-03-10 17:36:22,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:36:22,772 INFO L480 AbstractCegarLoop]: Abstraction has 775 states and 2192 transitions. [2021-03-10 17:36:22,772 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 6.0) internal successors, (48), 8 states have internal predecessors, (48), 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) [2021-03-10 17:36:22,772 INFO L276 IsEmpty]: Start isEmpty. Operand 775 states and 2192 transitions. [2021-03-10 17:36:22,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-03-10 17:36:22,775 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:36:22,775 INFO L519 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, 1, 1, 1] [2021-03-10 17:36:22,775 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-03-10 17:36:22,776 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:36:22,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:36:22,776 INFO L82 PathProgramCache]: Analyzing trace with hash 284341996, now seen corresponding path program 1 times [2021-03-10 17:36:22,776 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:36:22,777 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1854783891] [2021-03-10 17:36:22,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:36:22,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:36:22,898 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:36:22,898 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1854783891] [2021-03-10 17:36:22,899 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:36:22,899 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-10 17:36:22,899 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [255408437] [2021-03-10 17:36:22,900 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-10 17:36:22,900 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:36:22,901 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-10 17:36:22,901 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-03-10 17:36:22,901 INFO L87 Difference]: Start difference. First operand 775 states and 2192 transitions. Second operand has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 7 states have internal predecessors, (52), 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) [2021-03-10 17:36:23,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:36:23,019 INFO L93 Difference]: Finished difference Result 785 states and 2198 transitions. [2021-03-10 17:36:23,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-10 17:36:23,019 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 7 states have internal predecessors, (52), 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 52 [2021-03-10 17:36:23,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:36:23,020 INFO L225 Difference]: With dead ends: 785 [2021-03-10 17:36:23,020 INFO L226 Difference]: Without dead ends: 0 [2021-03-10 17:36:23,021 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 147.0ms TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-03-10 17:36:23,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-03-10 17:36:23,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-03-10 17:36:23,021 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) [2021-03-10 17:36:23,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-03-10 17:36:23,021 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 52 [2021-03-10 17:36:23,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:36:23,022 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-03-10 17:36:23,022 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 7 states have internal predecessors, (52), 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) [2021-03-10 17:36:23,022 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-03-10 17:36:23,022 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-03-10 17:36:23,022 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-03-10 17:36:23,026 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.03 05:36:23 BasicIcfg [2021-03-10 17:36:23,026 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-10 17:36:23,029 INFO L168 Benchmark]: Toolchain (without parser) took 5161.20 ms. Allocated memory was 255.9 MB in the beginning and 996.1 MB in the end (delta: 740.3 MB). Free memory was 234.9 MB in the beginning and 803.5 MB in the end (delta: -568.6 MB). Peak memory consumption was 171.3 MB. Max. memory is 16.0 GB. [2021-03-10 17:36:23,031 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 255.9 MB. Free memory is still 237.8 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-03-10 17:36:23,032 INFO L168 Benchmark]: CACSL2BoogieTranslator took 479.66 ms. Allocated memory was 255.9 MB in the beginning and 364.9 MB in the end (delta: 109.1 MB). Free memory was 234.3 MB in the beginning and 328.3 MB in the end (delta: -94.0 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.0 GB. [2021-03-10 17:36:23,032 INFO L168 Benchmark]: Boogie Procedure Inliner took 54.98 ms. Allocated memory is still 364.9 MB. Free memory was 328.3 MB in the beginning and 326.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-10 17:36:23,033 INFO L168 Benchmark]: Boogie Preprocessor took 32.14 ms. Allocated memory is still 364.9 MB. Free memory was 326.2 MB in the beginning and 324.9 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-10 17:36:23,034 INFO L168 Benchmark]: RCFGBuilder took 455.72 ms. Allocated memory is still 364.9 MB. Free memory was 324.9 MB in the beginning and 302.3 MB in the end (delta: 22.6 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. [2021-03-10 17:36:23,036 INFO L168 Benchmark]: TraceAbstraction took 4131.09 ms. Allocated memory was 364.9 MB in the beginning and 996.1 MB in the end (delta: 631.2 MB). Free memory was 302.3 MB in the beginning and 803.5 MB in the end (delta: -501.2 MB). Peak memory consumption was 132.7 MB. Max. memory is 16.0 GB. [2021-03-10 17:36:23,046 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 255.9 MB. Free memory is still 237.8 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 479.66 ms. Allocated memory was 255.9 MB in the beginning and 364.9 MB in the end (delta: 109.1 MB). Free memory was 234.3 MB in the beginning and 328.3 MB in the end (delta: -94.0 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 54.98 ms. Allocated memory is still 364.9 MB. Free memory was 328.3 MB in the beginning and 326.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 32.14 ms. Allocated memory is still 364.9 MB. Free memory was 326.2 MB in the beginning and 324.9 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.0 GB. * RCFGBuilder took 455.72 ms. Allocated memory is still 364.9 MB. Free memory was 324.9 MB in the beginning and 302.3 MB in the end (delta: 22.6 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. * TraceAbstraction took 4131.09 ms. Allocated memory was 364.9 MB in the beginning and 996.1 MB in the end (delta: 631.2 MB). Free memory was 302.3 MB in the beginning and 803.5 MB in the end (delta: -501.2 MB). Peak memory consumption was 132.7 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 74 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 4047.6ms, OverallIterations: 6, TraceHistogramMax: 1, EmptinessCheckTime: 100.6ms, AutomataDifference: 1638.9ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 676.8ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 534 SDtfs, 953 SDslu, 1719 SDs, 0 SdLazy, 281 SolverSat, 65 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 331.2ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 74 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 1045.9ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=8819occurred in iteration=0, InterpolantAutomatonStates: 57, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 483.6ms AutomataMinimizationTime, 6 MinimizatonAttempts, 536 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 63.6ms SsaConstructionTime, 169.6ms SatisfiabilityAnalysisTime, 739.8ms InterpolantComputationTime, 279 NumberOfCodeBlocks, 279 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 273 ConstructedInterpolants, 0 QuantifiedInterpolants, 1125 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 RESULT: Ultimate proved your program to be correct! Received shutdown request...