/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/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-WP.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe002_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-bf4350c [2020-09-17 23:58:11,274 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-17 23:58:11,279 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-17 23:58:11,322 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-17 23:58:11,323 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-17 23:58:11,331 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-17 23:58:11,334 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-17 23:58:11,339 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-17 23:58:11,341 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-17 23:58:11,345 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-17 23:58:11,346 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-17 23:58:11,347 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-17 23:58:11,348 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-17 23:58:11,351 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-17 23:58:11,353 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-17 23:58:11,355 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-17 23:58:11,357 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-17 23:58:11,359 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-17 23:58:11,361 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-17 23:58:11,369 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-17 23:58:11,372 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-17 23:58:11,373 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-17 23:58:11,374 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-17 23:58:11,375 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-17 23:58:11,393 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-17 23:58:11,393 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-17 23:58:11,393 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-17 23:58:11,394 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-17 23:58:11,395 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-17 23:58:11,396 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-17 23:58:11,396 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-17 23:58:11,397 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-17 23:58:11,402 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-17 23:58:11,403 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-17 23:58:11,404 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-17 23:58:11,404 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-17 23:58:11,405 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-17 23:58:11,406 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-17 23:58:11,406 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-17 23:58:11,407 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-17 23:58:11,407 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-17 23:58:11,409 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-WP.epf [2020-09-17 23:58:11,453 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-17 23:58:11,454 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-17 23:58:11,455 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-17 23:58:11,456 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-17 23:58:11,456 INFO L138 SettingsManager]: * Use SBE=true [2020-09-17 23:58:11,456 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-17 23:58:11,456 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-17 23:58:11,457 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-17 23:58:11,457 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-17 23:58:11,457 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-17 23:58:11,458 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-17 23:58:11,458 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-17 23:58:11,458 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-17 23:58:11,459 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-17 23:58:11,459 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-17 23:58:11,459 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-17 23:58:11,459 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-17 23:58:11,460 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-17 23:58:11,460 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-17 23:58:11,460 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-17 23:58:11,460 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-17 23:58:11,460 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-17 23:58:11,461 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-17 23:58:11,461 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-09-17 23:58:11,461 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-17 23:58:11,461 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-17 23:58:11,462 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-17 23:58:11,462 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2020-09-17 23:58:11,462 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-09-17 23:58:11,462 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-17 23:58:11,462 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2020-09-17 23:58:11,886 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-17 23:58:11,901 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-17 23:58:11,906 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-17 23:58:11,907 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-17 23:58:11,908 INFO L275 PluginConnector]: CDTParser initialized [2020-09-17 23:58:11,909 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe002_tso.oepc.i [2020-09-17 23:58:11,985 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/abff74531/620d4fd2f0124744bf02fb41af21c48c/FLAG228e22678 [2020-09-17 23:58:12,679 INFO L306 CDTParser]: Found 1 translation units. [2020-09-17 23:58:12,680 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe002_tso.oepc.i [2020-09-17 23:58:12,696 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/abff74531/620d4fd2f0124744bf02fb41af21c48c/FLAG228e22678 [2020-09-17 23:58:12,899 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/abff74531/620d4fd2f0124744bf02fb41af21c48c [2020-09-17 23:58:12,912 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-17 23:58:12,920 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-09-17 23:58:12,924 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-17 23:58:12,924 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-17 23:58:12,928 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-17 23:58:12,929 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.09 11:58:12" (1/1) ... [2020-09-17 23:58:12,934 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4e118629 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 11:58:12, skipping insertion in model container [2020-09-17 23:58:12,934 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.09 11:58:12" (1/1) ... [2020-09-17 23:58:12,943 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-17 23:58:12,996 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-17 23:58:13,560 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-17 23:58:13,582 INFO L203 MainTranslator]: Completed pre-run [2020-09-17 23:58:13,629 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-17 23:58:13,717 INFO L208 MainTranslator]: Completed translation [2020-09-17 23:58:13,719 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 11:58:13 WrapperNode [2020-09-17 23:58:13,719 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-17 23:58:13,720 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-09-17 23:58:13,720 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-09-17 23:58:13,720 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-09-17 23:58:13,734 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 11:58:13" (1/1) ... [2020-09-17 23:58:13,757 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 11:58:13" (1/1) ... [2020-09-17 23:58:13,784 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-09-17 23:58:13,785 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-17 23:58:13,785 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-17 23:58:13,785 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-17 23:58:13,796 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 11:58:13" (1/1) ... [2020-09-17 23:58:13,796 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 11:58:13" (1/1) ... [2020-09-17 23:58:13,800 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 11:58:13" (1/1) ... [2020-09-17 23:58:13,800 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 11:58:13" (1/1) ... [2020-09-17 23:58:13,807 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 11:58:13" (1/1) ... [2020-09-17 23:58:13,812 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 11:58:13" (1/1) ... [2020-09-17 23:58:13,814 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 11:58:13" (1/1) ... [2020-09-17 23:58:13,818 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-17 23:58:13,818 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-17 23:58:13,818 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-17 23:58:13,819 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-17 23:58:13,820 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 11:58:13" (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 [2020-09-17 23:58:13,894 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-17 23:58:13,894 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-09-17 23:58:13,894 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-17 23:58:13,894 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-17 23:58:13,895 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-09-17 23:58:13,895 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-09-17 23:58:13,895 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-09-17 23:58:13,895 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-09-17 23:58:13,895 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-09-17 23:58:13,896 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-09-17 23:58:13,896 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-09-17 23:58:13,896 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-17 23:58:13,896 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-17 23:58:13,899 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-09-17 23:58:14,349 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-17 23:58:14,349 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-09-17 23:58:14,354 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.09 11:58:14 BoogieIcfgContainer [2020-09-17 23:58:14,354 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-17 23:58:14,356 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-17 23:58:14,356 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-17 23:58:14,362 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-17 23:58:14,362 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.09 11:58:12" (1/3) ... [2020-09-17 23:58:14,363 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b6e8680 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.09 11:58:14, skipping insertion in model container [2020-09-17 23:58:14,363 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 11:58:13" (2/3) ... [2020-09-17 23:58:14,364 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b6e8680 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.09 11:58:14, skipping insertion in model container [2020-09-17 23:58:14,364 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.09 11:58:14" (3/3) ... [2020-09-17 23:58:14,366 INFO L109 eAbstractionObserver]: Analyzing ICFG safe002_tso.oepc.i [2020-09-17 23:58:14,378 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-09-17 23:58:14,378 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-17 23:58:14,389 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-17 23:58:14,390 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-09-17 23:58:14,420 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 23:58:14,421 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 23:58:14,421 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 23:58:14,421 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 23:58:14,422 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 23:58:14,422 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 23:58:14,423 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 23:58:14,423 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 23:58:14,423 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 23:58:14,423 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 23:58:14,424 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 23:58:14,424 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 23:58:14,424 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 23:58:14,425 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 23:58:14,425 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 23:58:14,425 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 23:58:14,426 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 23:58:14,426 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 23:58:14,430 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 23:58:14,431 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 23:58:14,431 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 23:58:14,431 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 23:58:14,440 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 23:58:14,440 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 23:58:14,440 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 23:58:14,441 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 23:58:14,443 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 23:58:14,444 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 23:58:14,444 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 23:58:14,444 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 23:58:14,468 INFO L251 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-09-17 23:58:14,491 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-17 23:58:14,492 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-17 23:58:14,492 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-17 23:58:14,492 INFO L378 AbstractCegarLoop]: Backedges is MCR [2020-09-17 23:58:14,492 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-17 23:58:14,492 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-17 23:58:14,493 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-17 23:58:14,493 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-17 23:58:14,510 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 78 places, 70 transitions, 155 flow [2020-09-17 23:58:14,512 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 78 places, 70 transitions, 155 flow [2020-09-17 23:58:14,564 INFO L129 PetriNetUnfolder]: 2/67 cut-off events. [2020-09-17 23:58:14,565 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-09-17 23:58:14,571 INFO L80 FinitePrefix]: Finished finitePrefix Result has 77 conditions, 67 events. 2/67 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 46 event pairs, 0 based on Foata normal form. 0/64 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2020-09-17 23:58:14,574 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 78 places, 70 transitions, 155 flow [2020-09-17 23:58:14,594 INFO L129 PetriNetUnfolder]: 2/67 cut-off events. [2020-09-17 23:58:14,595 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-09-17 23:58:14,596 INFO L80 FinitePrefix]: Finished finitePrefix Result has 77 conditions, 67 events. 2/67 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 46 event pairs, 0 based on Foata normal form. 0/64 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2020-09-17 23:58:14,598 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 1260 [2020-09-17 23:58:14,599 INFO L182 etLargeBlockEncoding]: Variable Check. [2020-09-17 23:58:16,112 INFO L206 etLargeBlockEncoding]: Checked pairs total: 2700 [2020-09-17 23:58:16,113 INFO L214 etLargeBlockEncoding]: Total number of compositions: 59 [2020-09-17 23:58:16,118 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 31 places, 22 transitions, 59 flow [2020-09-17 23:58:16,147 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 298 states. [2020-09-17 23:58:16,150 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states. [2020-09-17 23:58:16,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-09-17 23:58:16,160 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 23:58:16,161 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 23:58:16,162 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-17 23:58:16,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 23:58:16,170 INFO L82 PathProgramCache]: Analyzing trace with hash -1011733384, now seen corresponding path program 1 times [2020-09-17 23:58:16,192 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 23:58:16,192 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [774288102] [2020-09-17 23:58:16,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 23:58:16,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 23:58:16,446 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-17 23:58:16,447 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [774288102] [2020-09-17 23:58:16,448 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 23:58:16,449 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-09-17 23:58:16,450 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1159692743] [2020-09-17 23:58:16,451 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-17 23:58:16,455 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-17 23:58:16,473 INFO L274 McrAutomatonBuilder]: Finished intersection with 9 states and 8 transitions. [2020-09-17 23:58:16,473 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-17 23:58:16,475 INFO L409 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-17 23:58:16,476 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-17 23:58:16,477 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 23:58:16,495 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-17 23:58:16,496 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-17 23:58:16,499 INFO L87 Difference]: Start difference. First operand 298 states. Second operand 3 states. [2020-09-17 23:58:16,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 23:58:16,538 INFO L93 Difference]: Finished difference Result 282 states and 808 transitions. [2020-09-17 23:58:16,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-17 23:58:16,542 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-09-17 23:58:16,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 23:58:16,562 INFO L225 Difference]: With dead ends: 282 [2020-09-17 23:58:16,562 INFO L226 Difference]: Without dead ends: 218 [2020-09-17 23:58:16,564 INFO L675 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 [2020-09-17 23:58:16,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2020-09-17 23:58:16,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 218. [2020-09-17 23:58:16,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 218 states. [2020-09-17 23:58:16,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 600 transitions. [2020-09-17 23:58:16,644 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 600 transitions. Word has length 8 [2020-09-17 23:58:16,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 23:58:16,646 INFO L479 AbstractCegarLoop]: Abstraction has 218 states and 600 transitions. [2020-09-17 23:58:16,646 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-17 23:58:16,646 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 600 transitions. [2020-09-17 23:58:16,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-09-17 23:58:16,647 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 23:58:16,648 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 23:58:16,648 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-17 23:58:16,648 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-17 23:58:16,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 23:58:16,649 INFO L82 PathProgramCache]: Analyzing trace with hash -1298976658, now seen corresponding path program 1 times [2020-09-17 23:58:16,649 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 23:58:16,649 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [365712058] [2020-09-17 23:58:16,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 23:58:16,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 23:58:16,755 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-17 23:58:16,755 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [365712058] [2020-09-17 23:58:16,757 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 23:58:16,757 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-17 23:58:16,757 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [372132919] [2020-09-17 23:58:16,758 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-17 23:58:16,759 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-17 23:58:16,761 INFO L274 McrAutomatonBuilder]: Finished intersection with 11 states and 11 transitions. [2020-09-17 23:58:16,764 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-17 23:58:16,782 INFO L409 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-17 23:58:16,783 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-17 23:58:16,784 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 23:58:16,784 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-17 23:58:16,784 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-17 23:58:16,785 INFO L87 Difference]: Start difference. First operand 218 states and 600 transitions. Second operand 4 states. [2020-09-17 23:58:16,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 23:58:16,821 INFO L93 Difference]: Finished difference Result 242 states and 634 transitions. [2020-09-17 23:58:16,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-17 23:58:16,821 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-09-17 23:58:16,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 23:58:16,823 INFO L225 Difference]: With dead ends: 242 [2020-09-17 23:58:16,824 INFO L226 Difference]: Without dead ends: 146 [2020-09-17 23:58:16,825 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-17 23:58:16,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2020-09-17 23:58:16,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 146. [2020-09-17 23:58:16,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 146 states. [2020-09-17 23:58:16,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 362 transitions. [2020-09-17 23:58:16,840 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 362 transitions. Word has length 9 [2020-09-17 23:58:16,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 23:58:16,841 INFO L479 AbstractCegarLoop]: Abstraction has 146 states and 362 transitions. [2020-09-17 23:58:16,841 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-17 23:58:16,841 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 362 transitions. [2020-09-17 23:58:16,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-09-17 23:58:16,846 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 23:58:16,846 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 23:58:16,847 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-17 23:58:16,847 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-17 23:58:16,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 23:58:16,847 INFO L82 PathProgramCache]: Analyzing trace with hash 1379708097, now seen corresponding path program 1 times [2020-09-17 23:58:16,848 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 23:58:16,848 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [88593487] [2020-09-17 23:58:16,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 23:58:16,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 23:58:16,973 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-17 23:58:16,974 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [88593487] [2020-09-17 23:58:16,974 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 23:58:16,974 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-17 23:58:16,975 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1272582764] [2020-09-17 23:58:16,975 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-17 23:58:16,976 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-17 23:58:16,979 INFO L274 McrAutomatonBuilder]: Finished intersection with 19 states and 25 transitions. [2020-09-17 23:58:16,979 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-17 23:58:16,995 INFO L409 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-17 23:58:16,995 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-17 23:58:16,996 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 23:58:16,996 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-17 23:58:16,996 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-17 23:58:16,997 INFO L87 Difference]: Start difference. First operand 146 states and 362 transitions. Second operand 3 states. [2020-09-17 23:58:17,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 23:58:17,010 INFO L93 Difference]: Finished difference Result 138 states and 336 transitions. [2020-09-17 23:58:17,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-17 23:58:17,011 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2020-09-17 23:58:17,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 23:58:17,013 INFO L225 Difference]: With dead ends: 138 [2020-09-17 23:58:17,013 INFO L226 Difference]: Without dead ends: 138 [2020-09-17 23:58:17,013 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-17 23:58:17,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2020-09-17 23:58:17,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 138. [2020-09-17 23:58:17,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 138 states. [2020-09-17 23:58:17,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 336 transitions. [2020-09-17 23:58:17,024 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 336 transitions. Word has length 11 [2020-09-17 23:58:17,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 23:58:17,025 INFO L479 AbstractCegarLoop]: Abstraction has 138 states and 336 transitions. [2020-09-17 23:58:17,025 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-17 23:58:17,025 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 336 transitions. [2020-09-17 23:58:17,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-09-17 23:58:17,026 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 23:58:17,027 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 23:58:17,027 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-17 23:58:17,027 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-17 23:58:17,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 23:58:17,027 INFO L82 PathProgramCache]: Analyzing trace with hash -178767453, now seen corresponding path program 1 times [2020-09-17 23:58:17,028 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 23:58:17,028 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [219537644] [2020-09-17 23:58:17,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 23:58:17,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 23:58:17,103 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-17 23:58:17,104 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [219537644] [2020-09-17 23:58:17,104 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 23:58:17,105 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-09-17 23:58:17,106 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1287673127] [2020-09-17 23:58:17,106 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-17 23:58:17,107 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-17 23:58:17,111 INFO L274 McrAutomatonBuilder]: Finished intersection with 21 states and 28 transitions. [2020-09-17 23:58:17,111 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-17 23:58:17,158 INFO L409 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-17 23:58:17,158 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-17 23:58:17,159 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 23:58:17,159 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-17 23:58:17,159 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-17 23:58:17,159 INFO L87 Difference]: Start difference. First operand 138 states and 336 transitions. Second operand 3 states. [2020-09-17 23:58:17,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 23:58:17,166 INFO L93 Difference]: Finished difference Result 134 states and 324 transitions. [2020-09-17 23:58:17,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-17 23:58:17,167 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2020-09-17 23:58:17,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 23:58:17,169 INFO L225 Difference]: With dead ends: 134 [2020-09-17 23:58:17,171 INFO L226 Difference]: Without dead ends: 134 [2020-09-17 23:58:17,172 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-17 23:58:17,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2020-09-17 23:58:17,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 134. [2020-09-17 23:58:17,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 134 states. [2020-09-17 23:58:17,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 324 transitions. [2020-09-17 23:58:17,192 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 324 transitions. Word has length 12 [2020-09-17 23:58:17,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 23:58:17,193 INFO L479 AbstractCegarLoop]: Abstraction has 134 states and 324 transitions. [2020-09-17 23:58:17,193 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-17 23:58:17,193 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 324 transitions. [2020-09-17 23:58:17,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-09-17 23:58:17,195 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 23:58:17,195 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 23:58:17,195 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-17 23:58:17,196 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-17 23:58:17,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 23:58:17,199 INFO L82 PathProgramCache]: Analyzing trace with hash -1648184308, now seen corresponding path program 1 times [2020-09-17 23:58:17,199 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 23:58:17,200 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1774843421] [2020-09-17 23:58:17,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 23:58:17,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 23:58:17,306 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-17 23:58:17,307 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1774843421] [2020-09-17 23:58:17,307 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 23:58:17,307 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-17 23:58:17,307 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1761102303] [2020-09-17 23:58:17,307 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-17 23:58:17,308 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-17 23:58:17,318 INFO L274 McrAutomatonBuilder]: Finished intersection with 31 states and 50 transitions. [2020-09-17 23:58:17,318 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-17 23:58:17,438 INFO L409 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-17 23:58:17,439 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-17 23:58:17,439 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 23:58:17,439 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-17 23:58:17,440 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-17 23:58:17,440 INFO L87 Difference]: Start difference. First operand 134 states and 324 transitions. Second operand 4 states. [2020-09-17 23:58:17,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 23:58:17,467 INFO L93 Difference]: Finished difference Result 194 states and 466 transitions. [2020-09-17 23:58:17,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-17 23:58:17,467 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2020-09-17 23:58:17,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 23:58:17,468 INFO L225 Difference]: With dead ends: 194 [2020-09-17 23:58:17,469 INFO L226 Difference]: Without dead ends: 104 [2020-09-17 23:58:17,469 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-17 23:58:17,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2020-09-17 23:58:17,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 104. [2020-09-17 23:58:17,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 104 states. [2020-09-17 23:58:17,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 246 transitions. [2020-09-17 23:58:17,476 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 246 transitions. Word has length 13 [2020-09-17 23:58:17,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 23:58:17,477 INFO L479 AbstractCegarLoop]: Abstraction has 104 states and 246 transitions. [2020-09-17 23:58:17,477 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-17 23:58:17,477 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 246 transitions. [2020-09-17 23:58:17,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-09-17 23:58:17,478 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 23:58:17,478 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 23:58:17,478 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-17 23:58:17,479 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-17 23:58:17,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 23:58:17,479 INFO L82 PathProgramCache]: Analyzing trace with hash -1261556210, now seen corresponding path program 2 times [2020-09-17 23:58:17,479 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 23:58:17,480 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [575019901] [2020-09-17 23:58:17,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 23:58:17,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 23:58:17,531 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-17 23:58:17,531 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [575019901] [2020-09-17 23:58:17,531 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 23:58:17,531 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-17 23:58:17,532 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1547277420] [2020-09-17 23:58:17,532 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-17 23:58:17,533 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-17 23:58:17,537 INFO L274 McrAutomatonBuilder]: Finished intersection with 27 states and 40 transitions. [2020-09-17 23:58:17,537 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-17 23:58:17,569 INFO L409 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-17 23:58:17,569 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-17 23:58:17,569 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 23:58:17,570 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-17 23:58:17,570 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-17 23:58:17,570 INFO L87 Difference]: Start difference. First operand 104 states and 246 transitions. Second operand 4 states. [2020-09-17 23:58:17,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 23:58:17,593 INFO L93 Difference]: Finished difference Result 128 states and 298 transitions. [2020-09-17 23:58:17,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-17 23:58:17,594 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2020-09-17 23:58:17,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 23:58:17,595 INFO L225 Difference]: With dead ends: 128 [2020-09-17 23:58:17,595 INFO L226 Difference]: Without dead ends: 68 [2020-09-17 23:58:17,595 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-17 23:58:17,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2020-09-17 23:58:17,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2020-09-17 23:58:17,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2020-09-17 23:58:17,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 144 transitions. [2020-09-17 23:58:17,600 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 144 transitions. Word has length 13 [2020-09-17 23:58:17,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 23:58:17,600 INFO L479 AbstractCegarLoop]: Abstraction has 68 states and 144 transitions. [2020-09-17 23:58:17,601 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-17 23:58:17,601 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 144 transitions. [2020-09-17 23:58:17,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-09-17 23:58:17,601 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 23:58:17,602 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 23:58:17,602 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-17 23:58:17,602 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-17 23:58:17,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 23:58:17,602 INFO L82 PathProgramCache]: Analyzing trace with hash -1246852910, now seen corresponding path program 3 times [2020-09-17 23:58:17,603 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 23:58:17,603 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1109644573] [2020-09-17 23:58:17,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 23:58:17,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 23:58:17,677 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-17 23:58:17,678 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1109644573] [2020-09-17 23:58:17,678 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 23:58:17,678 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-17 23:58:17,679 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1042239354] [2020-09-17 23:58:17,679 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-17 23:58:17,680 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-17 23:58:17,683 INFO L274 McrAutomatonBuilder]: Finished intersection with 23 states and 31 transitions. [2020-09-17 23:58:17,683 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-17 23:58:17,721 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-09-17 23:58:17,740 INFO L409 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-17 23:58:17,740 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-17 23:58:17,740 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 23:58:17,740 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-17 23:58:17,741 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-17 23:58:17,741 INFO L87 Difference]: Start difference. First operand 68 states and 144 transitions. Second operand 4 states. [2020-09-17 23:58:17,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 23:58:17,788 INFO L93 Difference]: Finished difference Result 81 states and 157 transitions. [2020-09-17 23:58:17,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-17 23:58:17,788 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2020-09-17 23:58:17,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 23:58:17,789 INFO L225 Difference]: With dead ends: 81 [2020-09-17 23:58:17,789 INFO L226 Difference]: Without dead ends: 59 [2020-09-17 23:58:17,790 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-17 23:58:17,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2020-09-17 23:58:17,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59. [2020-09-17 23:58:17,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2020-09-17 23:58:17,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 114 transitions. [2020-09-17 23:58:17,794 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 114 transitions. Word has length 13 [2020-09-17 23:58:17,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 23:58:17,794 INFO L479 AbstractCegarLoop]: Abstraction has 59 states and 114 transitions. [2020-09-17 23:58:17,794 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-17 23:58:17,794 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 114 transitions. [2020-09-17 23:58:17,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-09-17 23:58:17,795 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 23:58:17,795 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 23:58:17,795 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-17 23:58:17,796 INFO L427 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-17 23:58:17,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 23:58:17,796 INFO L82 PathProgramCache]: Analyzing trace with hash 433937672, now seen corresponding path program 1 times [2020-09-17 23:58:17,796 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 23:58:17,797 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [978634968] [2020-09-17 23:58:17,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 23:58:17,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 23:58:17,874 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-17 23:58:17,875 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [978634968] [2020-09-17 23:58:17,875 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 23:58:17,875 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-17 23:58:17,876 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [851008801] [2020-09-17 23:58:17,876 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-17 23:58:17,877 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-17 23:58:17,881 INFO L274 McrAutomatonBuilder]: Finished intersection with 27 states and 38 transitions. [2020-09-17 23:58:17,881 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-17 23:58:17,930 INFO L409 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [3649#(<= ~__unbuffered_cnt~0 0)] [2020-09-17 23:58:17,931 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-17 23:58:17,931 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 23:58:17,931 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-17 23:58:17,931 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-09-17 23:58:17,932 INFO L87 Difference]: Start difference. First operand 59 states and 114 transitions. Second operand 6 states. [2020-09-17 23:58:17,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 23:58:17,974 INFO L93 Difference]: Finished difference Result 60 states and 104 transitions. [2020-09-17 23:58:17,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-17 23:58:17,974 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2020-09-17 23:58:17,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 23:58:17,975 INFO L225 Difference]: With dead ends: 60 [2020-09-17 23:58:17,975 INFO L226 Difference]: Without dead ends: 45 [2020-09-17 23:58:17,976 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 9 SyntacticMatches, 2 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-09-17 23:58:17,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2020-09-17 23:58:17,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2020-09-17 23:58:17,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2020-09-17 23:58:17,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 74 transitions. [2020-09-17 23:58:17,978 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 74 transitions. Word has length 14 [2020-09-17 23:58:17,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 23:58:17,979 INFO L479 AbstractCegarLoop]: Abstraction has 45 states and 74 transitions. [2020-09-17 23:58:17,979 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-17 23:58:17,979 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 74 transitions. [2020-09-17 23:58:17,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-09-17 23:58:17,980 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 23:58:17,980 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 23:58:17,980 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-17 23:58:17,980 INFO L427 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-17 23:58:17,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 23:58:17,981 INFO L82 PathProgramCache]: Analyzing trace with hash 567169455, now seen corresponding path program 1 times [2020-09-17 23:58:17,981 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 23:58:17,981 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1888968074] [2020-09-17 23:58:17,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 23:58:17,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 23:58:18,051 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-17 23:58:18,052 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1888968074] [2020-09-17 23:58:18,052 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 23:58:18,052 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-17 23:58:18,053 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1073815210] [2020-09-17 23:58:18,053 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-17 23:58:18,054 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-17 23:58:18,058 INFO L274 McrAutomatonBuilder]: Finished intersection with 27 states and 37 transitions. [2020-09-17 23:58:18,058 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-17 23:58:18,088 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-09-17 23:58:18,137 INFO L409 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [3808#(<= ~__unbuffered_cnt~0 0)] [2020-09-17 23:58:18,137 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-17 23:58:18,137 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 23:58:18,138 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-17 23:58:18,138 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-09-17 23:58:18,138 INFO L87 Difference]: Start difference. First operand 45 states and 74 transitions. Second operand 7 states. [2020-09-17 23:58:18,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 23:58:18,199 INFO L93 Difference]: Finished difference Result 42 states and 66 transitions. [2020-09-17 23:58:18,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-17 23:58:18,200 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 15 [2020-09-17 23:58:18,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 23:58:18,200 INFO L225 Difference]: With dead ends: 42 [2020-09-17 23:58:18,201 INFO L226 Difference]: Without dead ends: 36 [2020-09-17 23:58:18,201 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 7 SyntacticMatches, 3 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2020-09-17 23:58:18,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2020-09-17 23:58:18,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2020-09-17 23:58:18,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2020-09-17 23:58:18,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 56 transitions. [2020-09-17 23:58:18,203 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 56 transitions. Word has length 15 [2020-09-17 23:58:18,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 23:58:18,204 INFO L479 AbstractCegarLoop]: Abstraction has 36 states and 56 transitions. [2020-09-17 23:58:18,204 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-17 23:58:18,204 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 56 transitions. [2020-09-17 23:58:18,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-09-17 23:58:18,205 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 23:58:18,205 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 23:58:18,205 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-17 23:58:18,205 INFO L427 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-17 23:58:18,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 23:58:18,206 INFO L82 PathProgramCache]: Analyzing trace with hash -412776350, now seen corresponding path program 1 times [2020-09-17 23:58:18,206 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 23:58:18,206 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [915765924] [2020-09-17 23:58:18,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 23:58:18,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 23:58:18,308 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-17 23:58:18,308 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [915765924] [2020-09-17 23:58:18,308 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 23:58:18,309 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-17 23:58:18,309 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1992410017] [2020-09-17 23:58:18,309 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-17 23:58:18,311 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-17 23:58:18,316 INFO L274 McrAutomatonBuilder]: Finished intersection with 30 states and 41 transitions. [2020-09-17 23:58:18,317 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-17 23:58:18,356 INFO L409 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-17 23:58:18,357 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-17 23:58:18,357 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 23:58:18,357 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-17 23:58:18,357 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-17 23:58:18,358 INFO L87 Difference]: Start difference. First operand 36 states and 56 transitions. Second operand 4 states. [2020-09-17 23:58:18,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 23:58:18,367 INFO L93 Difference]: Finished difference Result 35 states and 55 transitions. [2020-09-17 23:58:18,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-17 23:58:18,367 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-09-17 23:58:18,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 23:58:18,368 INFO L225 Difference]: With dead ends: 35 [2020-09-17 23:58:18,368 INFO L226 Difference]: Without dead ends: 0 [2020-09-17 23:58:18,368 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-17 23:58:18,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-17 23:58:18,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-17 23:58:18,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-17 23:58:18,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-17 23:58:18,369 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2020-09-17 23:58:18,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 23:58:18,369 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-17 23:58:18,369 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-17 23:58:18,370 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-17 23:58:18,370 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-17 23:58:18,370 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-09-17 23:58:18,378 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.09 11:58:18 BasicIcfg [2020-09-17 23:58:18,378 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-17 23:58:18,382 INFO L168 Benchmark]: Toolchain (without parser) took 5466.78 ms. Allocated memory was 141.0 MB in the beginning and 278.9 MB in the end (delta: 137.9 MB). Free memory was 102.5 MB in the beginning and 231.3 MB in the end (delta: -128.8 MB). Peak memory consumption was 9.1 MB. Max. memory is 7.1 GB. [2020-09-17 23:58:18,383 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 141.0 MB. Free memory was 122.6 MB in the beginning and 122.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-09-17 23:58:18,384 INFO L168 Benchmark]: CACSL2BoogieTranslator took 795.82 ms. Allocated memory was 141.0 MB in the beginning and 204.5 MB in the end (delta: 63.4 MB). Free memory was 101.8 MB in the beginning and 162.3 MB in the end (delta: -60.5 MB). Peak memory consumption was 26.3 MB. Max. memory is 7.1 GB. [2020-09-17 23:58:18,385 INFO L168 Benchmark]: Boogie Procedure Inliner took 64.86 ms. Allocated memory is still 204.5 MB. Free memory was 161.7 MB in the beginning and 159.8 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. [2020-09-17 23:58:18,386 INFO L168 Benchmark]: Boogie Preprocessor took 32.89 ms. Allocated memory is still 204.5 MB. Free memory was 159.8 MB in the beginning and 158.5 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2020-09-17 23:58:18,386 INFO L168 Benchmark]: RCFGBuilder took 536.43 ms. Allocated memory is still 204.5 MB. Free memory was 158.5 MB in the beginning and 135.8 MB in the end (delta: 22.7 MB). Peak memory consumption was 22.7 MB. Max. memory is 7.1 GB. [2020-09-17 23:58:18,387 INFO L168 Benchmark]: TraceAbstraction took 4022.74 ms. Allocated memory was 204.5 MB in the beginning and 278.9 MB in the end (delta: 74.4 MB). Free memory was 135.8 MB in the beginning and 231.3 MB in the end (delta: -95.4 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-17 23:58:18,393 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 141.0 MB. Free memory was 122.6 MB in the beginning and 122.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 795.82 ms. Allocated memory was 141.0 MB in the beginning and 204.5 MB in the end (delta: 63.4 MB). Free memory was 101.8 MB in the beginning and 162.3 MB in the end (delta: -60.5 MB). Peak memory consumption was 26.3 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 64.86 ms. Allocated memory is still 204.5 MB. Free memory was 161.7 MB in the beginning and 159.8 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 32.89 ms. Allocated memory is still 204.5 MB. Free memory was 159.8 MB in the beginning and 158.5 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 536.43 ms. Allocated memory is still 204.5 MB. Free memory was 158.5 MB in the beginning and 135.8 MB in the end (delta: 22.7 MB). Peak memory consumption was 22.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 4022.74 ms. Allocated memory was 204.5 MB in the beginning and 278.9 MB in the end (delta: 74.4 MB). Free memory was 135.8 MB in the beginning and 231.3 MB in the end (delta: -95.4 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: 1.6s, 78 ProgramPointsBefore, 31 ProgramPointsAfterwards, 70 TransitionsBefore, 22 TransitionsAfterwards, 1260 CoEnabledTransitionPairs, 7 FixpointIterations, 14 TrivialSequentialCompositions, 37 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 1 ChoiceCompositions, 655 VarBasedMoverChecksPositive, 25 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 2700 CheckedPairsTotal, 59 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 4 procedures, 69 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.8s, OverallIterations: 10, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.6s, HoareTripleCheckerStatistics: 180 SDtfs, 107 SDslu, 191 SDs, 0 SdLazy, 122 SolverSat, 22 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 121 GetRequests, 86 SyntacticMatches, 6 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=298occurred 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: 0.1s AutomataMinimizationTime, 10 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 125 NumberOfCodeBlocks, 125 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 115 ConstructedInterpolants, 0 QuantifiedInterpolants, 3881 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 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...