/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-VariableLbe.epf -i ../../../trunk/examples/svcomp/pthread-wmm/thin000_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-b981219 [2020-04-18 02:54:30,359 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-04-18 02:54:30,361 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-04-18 02:54:30,373 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-04-18 02:54:30,374 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-04-18 02:54:30,375 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-04-18 02:54:30,376 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-04-18 02:54:30,378 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-04-18 02:54:30,379 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-04-18 02:54:30,380 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-04-18 02:54:30,381 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-04-18 02:54:30,382 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-04-18 02:54:30,382 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-04-18 02:54:30,383 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-04-18 02:54:30,384 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-04-18 02:54:30,385 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-04-18 02:54:30,386 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-04-18 02:54:30,387 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-04-18 02:54:30,389 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-04-18 02:54:30,391 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-04-18 02:54:30,393 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-04-18 02:54:30,394 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-04-18 02:54:30,395 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-04-18 02:54:30,396 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-04-18 02:54:30,398 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-04-18 02:54:30,398 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-04-18 02:54:30,399 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-04-18 02:54:30,399 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-04-18 02:54:30,400 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-04-18 02:54:30,401 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-04-18 02:54:30,401 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-04-18 02:54:30,402 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-04-18 02:54:30,403 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-04-18 02:54:30,403 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-04-18 02:54:30,405 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-04-18 02:54:30,405 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-04-18 02:54:30,405 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-04-18 02:54:30,406 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-04-18 02:54:30,406 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-04-18 02:54:30,407 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-04-18 02:54:30,408 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-04-18 02:54:30,408 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-VariableLbe.epf [2020-04-18 02:54:30,425 INFO L113 SettingsManager]: Loading preferences was successful [2020-04-18 02:54:30,425 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-04-18 02:54:30,426 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-04-18 02:54:30,427 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-04-18 02:54:30,427 INFO L138 SettingsManager]: * Use SBE=true [2020-04-18 02:54:30,427 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-04-18 02:54:30,427 INFO L138 SettingsManager]: * sizeof long=4 [2020-04-18 02:54:30,428 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-04-18 02:54:30,428 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-04-18 02:54:30,428 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-04-18 02:54:30,428 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-04-18 02:54:30,428 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-04-18 02:54:30,428 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-04-18 02:54:30,429 INFO L138 SettingsManager]: * sizeof long double=12 [2020-04-18 02:54:30,429 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-04-18 02:54:30,429 INFO L138 SettingsManager]: * Use constant arrays=true [2020-04-18 02:54:30,429 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-04-18 02:54:30,429 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-04-18 02:54:30,430 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-04-18 02:54:30,430 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-04-18 02:54:30,430 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-04-18 02:54:30,430 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-04-18 02:54:30,430 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-04-18 02:54:30,431 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-04-18 02:54:30,431 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-04-18 02:54:30,431 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-04-18 02:54:30,431 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-04-18 02:54:30,431 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-04-18 02:54:30,432 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-04-18 02:54:30,432 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-04-18 02:54:30,704 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-04-18 02:54:30,725 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-04-18 02:54:30,729 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-04-18 02:54:30,730 INFO L271 PluginConnector]: Initializing CDTParser... [2020-04-18 02:54:30,730 INFO L275 PluginConnector]: CDTParser initialized [2020-04-18 02:54:30,731 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/thin000_tso.opt.i [2020-04-18 02:54:30,802 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/85c86e9dc/6d5ce2ade70949339a92251e717cd3c7/FLAG998367166 [2020-04-18 02:54:31,332 INFO L306 CDTParser]: Found 1 translation units. [2020-04-18 02:54:31,334 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/thin000_tso.opt.i [2020-04-18 02:54:31,349 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/85c86e9dc/6d5ce2ade70949339a92251e717cd3c7/FLAG998367166 [2020-04-18 02:54:31,641 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/85c86e9dc/6d5ce2ade70949339a92251e717cd3c7 [2020-04-18 02:54:31,649 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-04-18 02:54:31,665 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-04-18 02:54:31,669 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-04-18 02:54:31,670 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-04-18 02:54:31,673 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-04-18 02:54:31,674 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 02:54:31" (1/1) ... [2020-04-18 02:54:31,677 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@62bfdcf1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 02:54:31, skipping insertion in model container [2020-04-18 02:54:31,677 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 02:54:31" (1/1) ... [2020-04-18 02:54:31,684 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-04-18 02:54:31,727 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-04-18 02:54:32,197 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-04-18 02:54:32,213 INFO L203 MainTranslator]: Completed pre-run [2020-04-18 02:54:32,264 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-04-18 02:54:32,339 INFO L208 MainTranslator]: Completed translation [2020-04-18 02:54:32,339 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 02:54:32 WrapperNode [2020-04-18 02:54:32,340 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-04-18 02:54:32,340 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-04-18 02:54:32,340 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-04-18 02:54:32,341 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-04-18 02:54:32,347 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 02:54:32" (1/1) ... [2020-04-18 02:54:32,366 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 02:54:32" (1/1) ... [2020-04-18 02:54:32,389 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-04-18 02:54:32,389 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-04-18 02:54:32,389 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-04-18 02:54:32,390 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-04-18 02:54:32,400 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 02:54:32" (1/1) ... [2020-04-18 02:54:32,401 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 02:54:32" (1/1) ... [2020-04-18 02:54:32,409 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 02:54:32" (1/1) ... [2020-04-18 02:54:32,409 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 02:54:32" (1/1) ... [2020-04-18 02:54:32,421 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 02:54:32" (1/1) ... [2020-04-18 02:54:32,425 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 02:54:32" (1/1) ... [2020-04-18 02:54:32,427 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 02:54:32" (1/1) ... [2020-04-18 02:54:32,430 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-04-18 02:54:32,430 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-04-18 02:54:32,430 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-04-18 02:54:32,430 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-04-18 02:54:32,431 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 02:54:32" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-04-18 02:54:32,505 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-04-18 02:54:32,505 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-04-18 02:54:32,505 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-04-18 02:54:32,506 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-04-18 02:54:32,506 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-04-18 02:54:32,507 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-04-18 02:54:32,507 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-04-18 02:54:32,509 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-04-18 02:54:32,509 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-04-18 02:54:32,509 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-04-18 02:54:32,509 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-04-18 02:54:32,511 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-04-18 02:54:32,860 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-04-18 02:54:32,861 INFO L295 CfgBuilder]: Removed 8 assume(true) statements. [2020-04-18 02:54:32,866 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 02:54:32 BoogieIcfgContainer [2020-04-18 02:54:32,867 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-04-18 02:54:32,868 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-04-18 02:54:32,868 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-04-18 02:54:32,871 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-04-18 02:54:32,872 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.04 02:54:31" (1/3) ... [2020-04-18 02:54:32,873 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4cf9f80 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 02:54:32, skipping insertion in model container [2020-04-18 02:54:32,873 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 02:54:32" (2/3) ... [2020-04-18 02:54:32,873 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4cf9f80 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 02:54:32, skipping insertion in model container [2020-04-18 02:54:32,873 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 02:54:32" (3/3) ... [2020-04-18 02:54:32,875 INFO L109 eAbstractionObserver]: Analyzing ICFG thin000_tso.opt.i [2020-04-18 02:54:32,885 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-04-18 02:54:32,885 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-04-18 02:54:32,890 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-04-18 02:54:32,891 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-04-18 02:54:32,919 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:54:32,919 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:54:32,919 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:54:32,920 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:54:32,920 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:54:32,920 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:54:32,921 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:54:32,921 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:54:32,921 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:54:32,921 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:54:32,922 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:54:32,922 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:54:32,926 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:54:32,927 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:54:32,927 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:54:32,927 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:54:32,932 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:54:32,932 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:54:32,932 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:54:32,933 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:54:32,948 INFO L251 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-04-18 02:54:32,964 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-04-18 02:54:32,964 INFO L376 AbstractCegarLoop]: Hoare is true [2020-04-18 02:54:32,967 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-04-18 02:54:32,967 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-04-18 02:54:32,967 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-04-18 02:54:32,967 INFO L380 AbstractCegarLoop]: Difference is false [2020-04-18 02:54:32,968 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-04-18 02:54:32,968 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-04-18 02:54:32,983 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 61 places, 56 transitions, 122 flow [2020-04-18 02:54:32,985 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 61 places, 56 transitions, 122 flow [2020-04-18 02:54:33,024 INFO L129 PetriNetUnfolder]: 2/54 cut-off events. [2020-04-18 02:54:33,025 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-04-18 02:54:33,031 INFO L80 FinitePrefix]: Finished finitePrefix Result has 61 conditions, 54 events. 2/54 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 32 event pairs, 0 based on Foata normal form. 0/51 useless extension candidates. Maximal degree in co-relation 41. Up to 2 conditions per place. [2020-04-18 02:54:33,035 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 61 places, 56 transitions, 122 flow [2020-04-18 02:54:33,060 INFO L129 PetriNetUnfolder]: 2/54 cut-off events. [2020-04-18 02:54:33,060 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-04-18 02:54:33,061 INFO L80 FinitePrefix]: Finished finitePrefix Result has 61 conditions, 54 events. 2/54 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 32 event pairs, 0 based on Foata normal form. 0/51 useless extension candidates. Maximal degree in co-relation 41. Up to 2 conditions per place. [2020-04-18 02:54:33,066 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 672 [2020-04-18 02:54:33,068 INFO L182 etLargeBlockEncoding]: Variable Check. [2020-04-18 02:54:34,398 INFO L206 etLargeBlockEncoding]: Checked pairs total: 1165 [2020-04-18 02:54:34,398 INFO L214 etLargeBlockEncoding]: Total number of compositions: 48 [2020-04-18 02:54:34,404 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 22 places, 15 transitions, 40 flow [2020-04-18 02:54:34,421 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 74 states. [2020-04-18 02:54:34,424 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states. [2020-04-18 02:54:34,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-04-18 02:54:34,433 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 02:54:34,434 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-04-18 02:54:34,434 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 02:54:34,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 02:54:34,439 INFO L82 PathProgramCache]: Analyzing trace with hash 1988358065, now seen corresponding path program 1 times [2020-04-18 02:54:34,447 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 02:54:34,447 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1455040004] [2020-04-18 02:54:34,448 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 02:54:34,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 02:54:34,725 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 02:54:34,726 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1455040004] [2020-04-18 02:54:34,728 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 02:54:34,728 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-04-18 02:54:34,729 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [842881536] [2020-04-18 02:54:34,734 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-04-18 02:54:34,735 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 02:54:34,751 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-04-18 02:54:34,752 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-18 02:54:34,754 INFO L87 Difference]: Start difference. First operand 74 states. Second operand 3 states. [2020-04-18 02:54:34,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 02:54:34,796 INFO L93 Difference]: Finished difference Result 70 states and 149 transitions. [2020-04-18 02:54:34,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-04-18 02:54:34,799 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2020-04-18 02:54:34,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 02:54:34,822 INFO L225 Difference]: With dead ends: 70 [2020-04-18 02:54:34,823 INFO L226 Difference]: Without dead ends: 54 [2020-04-18 02:54:34,827 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-18 02:54:34,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2020-04-18 02:54:34,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2020-04-18 02:54:34,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2020-04-18 02:54:34,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 109 transitions. [2020-04-18 02:54:34,864 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 109 transitions. Word has length 6 [2020-04-18 02:54:34,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 02:54:34,865 INFO L479 AbstractCegarLoop]: Abstraction has 54 states and 109 transitions. [2020-04-18 02:54:34,865 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-04-18 02:54:34,865 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 109 transitions. [2020-04-18 02:54:34,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-04-18 02:54:34,866 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 02:54:34,866 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-04-18 02:54:34,866 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 02:54:34,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 02:54:34,867 INFO L82 PathProgramCache]: Analyzing trace with hash 1509525162, now seen corresponding path program 1 times [2020-04-18 02:54:34,867 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 02:54:34,867 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1038680756] [2020-04-18 02:54:34,867 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 02:54:34,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 02:54:34,937 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 02:54:34,938 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1038680756] [2020-04-18 02:54:34,938 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 02:54:34,938 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-04-18 02:54:34,938 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1428987272] [2020-04-18 02:54:34,940 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-04-18 02:54:34,940 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 02:54:34,940 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-04-18 02:54:34,941 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-18 02:54:34,941 INFO L87 Difference]: Start difference. First operand 54 states and 109 transitions. Second operand 3 states. [2020-04-18 02:54:34,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 02:54:34,954 INFO L93 Difference]: Finished difference Result 51 states and 101 transitions. [2020-04-18 02:54:34,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-04-18 02:54:34,956 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2020-04-18 02:54:34,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 02:54:34,957 INFO L225 Difference]: With dead ends: 51 [2020-04-18 02:54:34,957 INFO L226 Difference]: Without dead ends: 51 [2020-04-18 02:54:34,958 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-18 02:54:34,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2020-04-18 02:54:34,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2020-04-18 02:54:34,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2020-04-18 02:54:34,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 101 transitions. [2020-04-18 02:54:34,967 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 101 transitions. Word has length 7 [2020-04-18 02:54:34,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 02:54:34,967 INFO L479 AbstractCegarLoop]: Abstraction has 51 states and 101 transitions. [2020-04-18 02:54:34,967 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-04-18 02:54:34,967 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 101 transitions. [2020-04-18 02:54:34,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-04-18 02:54:34,968 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 02:54:34,968 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 02:54:34,969 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 02:54:34,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 02:54:34,969 INFO L82 PathProgramCache]: Analyzing trace with hash -449361261, now seen corresponding path program 1 times [2020-04-18 02:54:34,969 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 02:54:34,970 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2027296698] [2020-04-18 02:54:34,970 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 02:54:34,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 02:54:35,040 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 02:54:35,041 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2027296698] [2020-04-18 02:54:35,041 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 02:54:35,041 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-04-18 02:54:35,042 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1380273454] [2020-04-18 02:54:35,045 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-04-18 02:54:35,045 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 02:54:35,045 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-04-18 02:54:35,046 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-04-18 02:54:35,046 INFO L87 Difference]: Start difference. First operand 51 states and 101 transitions. Second operand 4 states. [2020-04-18 02:54:35,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 02:54:35,076 INFO L93 Difference]: Finished difference Result 60 states and 113 transitions. [2020-04-18 02:54:35,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-04-18 02:54:35,076 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2020-04-18 02:54:35,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 02:54:35,077 INFO L225 Difference]: With dead ends: 60 [2020-04-18 02:54:35,078 INFO L226 Difference]: Without dead ends: 36 [2020-04-18 02:54:35,078 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-04-18 02:54:35,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2020-04-18 02:54:35,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2020-04-18 02:54:35,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2020-04-18 02:54:35,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 63 transitions. [2020-04-18 02:54:35,086 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 63 transitions. Word has length 8 [2020-04-18 02:54:35,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 02:54:35,087 INFO L479 AbstractCegarLoop]: Abstraction has 36 states and 63 transitions. [2020-04-18 02:54:35,087 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-04-18 02:54:35,087 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 63 transitions. [2020-04-18 02:54:35,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-04-18 02:54:35,088 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 02:54:35,088 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 02:54:35,088 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 02:54:35,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 02:54:35,089 INFO L82 PathProgramCache]: Analyzing trace with hash -1014872071, now seen corresponding path program 1 times [2020-04-18 02:54:35,089 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 02:54:35,091 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1400973216] [2020-04-18 02:54:35,092 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 02:54:35,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 02:54:35,179 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 02:54:35,180 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1400973216] [2020-04-18 02:54:35,181 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 02:54:35,181 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-04-18 02:54:35,181 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [716424003] [2020-04-18 02:54:35,181 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-04-18 02:54:35,182 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 02:54:35,182 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-04-18 02:54:35,182 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-04-18 02:54:35,182 INFO L87 Difference]: Start difference. First operand 36 states and 63 transitions. Second operand 4 states. [2020-04-18 02:54:35,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 02:54:35,199 INFO L93 Difference]: Finished difference Result 30 states and 50 transitions. [2020-04-18 02:54:35,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-04-18 02:54:35,200 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-04-18 02:54:35,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 02:54:35,200 INFO L225 Difference]: With dead ends: 30 [2020-04-18 02:54:35,200 INFO L226 Difference]: Without dead ends: 0 [2020-04-18 02:54:35,201 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-04-18 02:54:35,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-04-18 02:54:35,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-04-18 02:54:35,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-04-18 02:54:35,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-04-18 02:54:35,202 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 9 [2020-04-18 02:54:35,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 02:54:35,202 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-04-18 02:54:35,202 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-04-18 02:54:35,203 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-04-18 02:54:35,203 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 02:54:35,207 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.04 02:54:35 BasicIcfg [2020-04-18 02:54:35,208 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-04-18 02:54:35,211 INFO L168 Benchmark]: Toolchain (without parser) took 3559.26 ms. Allocated memory was 140.0 MB in the beginning and 246.9 MB in the end (delta: 107.0 MB). Free memory was 102.5 MB in the beginning and 182.7 MB in the end (delta: -80.2 MB). Peak memory consumption was 26.8 MB. Max. memory is 7.1 GB. [2020-04-18 02:54:35,212 INFO L168 Benchmark]: CDTParser took 0.47 ms. Allocated memory is still 140.0 MB. Free memory was 122.2 MB in the beginning and 122.0 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2020-04-18 02:54:35,213 INFO L168 Benchmark]: CACSL2BoogieTranslator took 670.42 ms. Allocated memory was 140.0 MB in the beginning and 204.5 MB in the end (delta: 64.5 MB). Free memory was 100.4 MB in the beginning and 161.5 MB in the end (delta: -61.0 MB). Peak memory consumption was 24.6 MB. Max. memory is 7.1 GB. [2020-04-18 02:54:35,214 INFO L168 Benchmark]: Boogie Procedure Inliner took 48.71 ms. Allocated memory is still 204.5 MB. Free memory was 161.5 MB in the beginning and 159.5 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-04-18 02:54:35,214 INFO L168 Benchmark]: Boogie Preprocessor took 40.49 ms. Allocated memory is still 204.5 MB. Free memory was 159.5 MB in the beginning and 158.1 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2020-04-18 02:54:35,215 INFO L168 Benchmark]: RCFGBuilder took 436.77 ms. Allocated memory is still 204.5 MB. Free memory was 158.1 MB in the beginning and 138.0 MB in the end (delta: 20.1 MB). Peak memory consumption was 20.1 MB. Max. memory is 7.1 GB. [2020-04-18 02:54:35,216 INFO L168 Benchmark]: TraceAbstraction took 2339.64 ms. Allocated memory was 204.5 MB in the beginning and 246.9 MB in the end (delta: 42.5 MB). Free memory was 138.0 MB in the beginning and 182.7 MB in the end (delta: -44.6 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-04-18 02:54:35,220 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.47 ms. Allocated memory is still 140.0 MB. Free memory was 122.2 MB in the beginning and 122.0 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 670.42 ms. Allocated memory was 140.0 MB in the beginning and 204.5 MB in the end (delta: 64.5 MB). Free memory was 100.4 MB in the beginning and 161.5 MB in the end (delta: -61.0 MB). Peak memory consumption was 24.6 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 48.71 ms. Allocated memory is still 204.5 MB. Free memory was 161.5 MB in the beginning and 159.5 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 40.49 ms. Allocated memory is still 204.5 MB. Free memory was 159.5 MB in the beginning and 158.1 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 436.77 ms. Allocated memory is still 204.5 MB. Free memory was 158.1 MB in the beginning and 138.0 MB in the end (delta: 20.1 MB). Peak memory consumption was 20.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2339.64 ms. Allocated memory was 204.5 MB in the beginning and 246.9 MB in the end (delta: 42.5 MB). Free memory was 138.0 MB in the beginning and 182.7 MB in the end (delta: -44.6 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.4s, 61 ProgramPointsBefore, 22 ProgramPointsAfterwards, 56 TransitionsBefore, 15 TransitionsAfterwards, 672 CoEnabledTransitionPairs, 6 FixpointIterations, 13 TrivialSequentialCompositions, 27 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 2 ChoiceCompositions, 361 VarBasedMoverChecksPositive, 17 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 1165 CheckedPairsTotal, 48 TotalNumberOfCompositions - PositiveResult [Line: 7]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 55 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.2s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.4s, HoareTripleCheckerStatistics: 45 SDtfs, 33 SDslu, 28 SDs, 0 SdLazy, 13 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=74occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 30 NumberOfCodeBlocks, 30 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 26 ConstructedInterpolants, 0 QuantifiedInterpolants, 522 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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...