/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/safe015_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-60655ea [2020-09-15 23:44:11,274 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-15 23:44:11,278 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-15 23:44:11,320 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-15 23:44:11,320 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-15 23:44:11,328 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-15 23:44:11,332 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-15 23:44:11,337 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-15 23:44:11,339 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-15 23:44:11,343 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-15 23:44:11,344 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-15 23:44:11,345 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-15 23:44:11,345 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-15 23:44:11,348 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-15 23:44:11,351 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-15 23:44:11,353 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-15 23:44:11,355 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-15 23:44:11,356 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-15 23:44:11,358 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-15 23:44:11,366 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-15 23:44:11,369 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-15 23:44:11,370 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-15 23:44:11,371 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-15 23:44:11,372 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-15 23:44:11,384 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-09-15 23:44:11,397 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-15 23:44:11,398 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-15 23:44:11,399 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-15 23:44:11,401 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-15 23:44:11,403 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-15 23:44:11,403 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-15 23:44:11,404 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-15 23:44:11,404 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-15 23:44:11,404 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-15 23:44:11,406 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-15 23:44:11,407 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-15 23:44:11,408 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-WP.epf [2020-09-15 23:44:11,454 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-15 23:44:11,454 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-15 23:44:11,457 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-15 23:44:11,457 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-15 23:44:11,457 INFO L138 SettingsManager]: * Use SBE=true [2020-09-15 23:44:11,457 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-15 23:44:11,458 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-15 23:44:11,458 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-15 23:44:11,458 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-15 23:44:11,458 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-15 23:44:11,459 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-15 23:44:11,460 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-15 23:44:11,460 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-15 23:44:11,460 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-15 23:44:11,461 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-15 23:44:11,461 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-15 23:44:11,461 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-15 23:44:11,461 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-15 23:44:11,461 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-15 23:44:11,462 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-15 23:44:11,462 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-15 23:44:11,462 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-15 23:44:11,462 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-15 23:44:11,462 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-09-15 23:44:11,463 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-15 23:44:11,463 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-15 23:44:11,463 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-15 23:44:11,463 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2020-09-15 23:44:11,463 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-09-15 23:44:11,464 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-15 23:44:11,464 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2020-09-15 23:44:11,891 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-15 23:44:11,913 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-15 23:44:11,917 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-15 23:44:11,919 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-15 23:44:11,919 INFO L275 PluginConnector]: CDTParser initialized [2020-09-15 23:44:11,921 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe015_tso.oepc.i [2020-09-15 23:44:12,014 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/783d5af6f/a49ae091065845a487b4a8c64026d1c2/FLAG728a55a43 [2020-09-15 23:44:12,642 INFO L306 CDTParser]: Found 1 translation units. [2020-09-15 23:44:12,643 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/pthread-wmm/safe015_tso.oepc.i [2020-09-15 23:44:12,661 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/783d5af6f/a49ae091065845a487b4a8c64026d1c2/FLAG728a55a43 [2020-09-15 23:44:12,905 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/783d5af6f/a49ae091065845a487b4a8c64026d1c2 [2020-09-15 23:44:12,918 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-15 23:44:12,923 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-09-15 23:44:12,924 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-15 23:44:12,925 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-15 23:44:12,929 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-15 23:44:12,930 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.09 11:44:12" (1/1) ... [2020-09-15 23:44:12,934 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@52697317 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 11:44:12, skipping insertion in model container [2020-09-15 23:44:12,935 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.09 11:44:12" (1/1) ... [2020-09-15 23:44:12,942 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-15 23:44:13,005 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-15 23:44:13,559 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-15 23:44:13,581 INFO L203 MainTranslator]: Completed pre-run [2020-09-15 23:44:13,658 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-15 23:44:13,738 INFO L208 MainTranslator]: Completed translation [2020-09-15 23:44:13,739 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 11:44:13 WrapperNode [2020-09-15 23:44:13,739 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-15 23:44:13,740 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-09-15 23:44:13,740 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-09-15 23:44:13,740 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-09-15 23:44:13,752 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 11:44:13" (1/1) ... [2020-09-15 23:44:13,772 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 11:44:13" (1/1) ... [2020-09-15 23:44:13,801 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-09-15 23:44:13,802 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-15 23:44:13,802 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-15 23:44:13,802 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-15 23:44:13,812 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 11:44:13" (1/1) ... [2020-09-15 23:44:13,812 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 11:44:13" (1/1) ... [2020-09-15 23:44:13,816 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 11:44:13" (1/1) ... [2020-09-15 23:44:13,816 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 11:44:13" (1/1) ... [2020-09-15 23:44:13,823 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 11:44:13" (1/1) ... [2020-09-15 23:44:13,830 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 11:44:13" (1/1) ... [2020-09-15 23:44:13,835 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 11:44:13" (1/1) ... [2020-09-15 23:44:13,839 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-15 23:44:13,839 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-15 23:44:13,839 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-15 23:44:13,840 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-15 23:44:13,841 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 11:44:13" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/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 [2020-09-15 23:44:13,922 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-15 23:44:13,922 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-09-15 23:44:13,922 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-15 23:44:13,922 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-15 23:44:13,923 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-09-15 23:44:13,923 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-09-15 23:44:13,923 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-09-15 23:44:13,923 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-09-15 23:44:13,923 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-09-15 23:44:13,924 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-09-15 23:44:13,924 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-09-15 23:44:13,924 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-15 23:44:13,924 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-15 23:44:13,927 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-09-15 23:44:14,346 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-15 23:44:14,346 INFO L295 CfgBuilder]: Removed 8 assume(true) statements. [2020-09-15 23:44:14,352 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.09 11:44:14 BoogieIcfgContainer [2020-09-15 23:44:14,352 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-15 23:44:14,353 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-15 23:44:14,354 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-15 23:44:14,357 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-15 23:44:14,358 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.09 11:44:12" (1/3) ... [2020-09-15 23:44:14,359 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7cfb8559 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.09 11:44:14, skipping insertion in model container [2020-09-15 23:44:14,359 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 11:44:13" (2/3) ... [2020-09-15 23:44:14,359 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7cfb8559 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.09 11:44:14, skipping insertion in model container [2020-09-15 23:44:14,360 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.09 11:44:14" (3/3) ... [2020-09-15 23:44:14,362 INFO L109 eAbstractionObserver]: Analyzing ICFG safe015_tso.oepc.i [2020-09-15 23:44:14,374 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-09-15 23:44:14,375 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-15 23:44:14,386 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-15 23:44:14,387 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-09-15 23:44:14,416 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 23:44:14,417 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 23:44:14,417 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 23:44:14,417 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 23:44:14,418 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 23:44:14,418 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 23:44:14,419 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 23:44:14,419 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 23:44:14,419 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 23:44:14,420 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 23:44:14,420 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 23:44:14,420 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 23:44:14,421 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 23:44:14,421 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 23:44:14,421 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 23:44:14,421 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 23:44:14,422 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 23:44:14,422 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 23:44:14,427 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 23:44:14,427 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 23:44:14,427 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 23:44:14,428 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 23:44:14,441 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 23:44:14,441 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 23:44:14,441 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 23:44:14,442 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 23:44:14,444 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 23:44:14,444 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 23:44:14,445 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 23:44:14,445 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 23:44:14,476 INFO L251 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-09-15 23:44:14,502 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-15 23:44:14,502 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-15 23:44:14,502 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-15 23:44:14,502 INFO L378 AbstractCegarLoop]: Backedges is MCR [2020-09-15 23:44:14,503 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-15 23:44:14,503 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-15 23:44:14,503 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-15 23:44:14,503 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-15 23:44:14,521 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 77 places, 69 transitions, 153 flow [2020-09-15 23:44:14,523 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 77 places, 69 transitions, 153 flow [2020-09-15 23:44:14,573 INFO L129 PetriNetUnfolder]: 2/66 cut-off events. [2020-09-15 23:44:14,574 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-09-15 23:44:14,580 INFO L80 FinitePrefix]: Finished finitePrefix Result has 76 conditions, 66 events. 2/66 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. 0/63 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2020-09-15 23:44:14,583 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 77 places, 69 transitions, 153 flow [2020-09-15 23:44:14,603 INFO L129 PetriNetUnfolder]: 2/66 cut-off events. [2020-09-15 23:44:14,603 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-09-15 23:44:14,604 INFO L80 FinitePrefix]: Finished finitePrefix Result has 76 conditions, 66 events. 2/66 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. 0/63 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2020-09-15 23:44:14,606 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 1260 [2020-09-15 23:44:14,608 INFO L182 etLargeBlockEncoding]: Variable Check. [2020-09-15 23:44:16,234 INFO L206 etLargeBlockEncoding]: Checked pairs total: 2826 [2020-09-15 23:44:16,234 INFO L214 etLargeBlockEncoding]: Total number of compositions: 58 [2020-09-15 23:44:16,239 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 31 places, 22 transitions, 59 flow [2020-09-15 23:44:16,270 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 298 states. [2020-09-15 23:44:16,273 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states. [2020-09-15 23:44:16,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-09-15 23:44:16,283 INFO L414 BasicCegarLoop]: Found error trace [2020-09-15 23:44:16,285 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-09-15 23:44:16,285 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-15 23:44:16,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-15 23:44:16,293 INFO L82 PathProgramCache]: Analyzing trace with hash -2122060928, now seen corresponding path program 1 times [2020-09-15 23:44:16,315 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-15 23:44:16,316 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1460182474] [2020-09-15 23:44:16,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-15 23:44:16,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-15 23:44:16,566 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-15 23:44:16,567 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1460182474] [2020-09-15 23:44:16,569 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-15 23:44:16,569 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-09-15 23:44:16,570 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1330008568] [2020-09-15 23:44:16,574 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-15 23:44:16,578 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-15 23:44:16,604 INFO L274 McrAutomatonBuilder]: Finished intersection with 9 states and 8 transitions. [2020-09-15 23:44:16,604 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-15 23:44:16,616 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-15 23:44:16,624 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-15 23:44:16,625 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-15 23:44:16,650 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-15 23:44:16,651 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-15 23:44:16,655 INFO L87 Difference]: Start difference. First operand 298 states. Second operand 3 states. [2020-09-15 23:44:16,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-15 23:44:16,712 INFO L93 Difference]: Finished difference Result 282 states and 808 transitions. [2020-09-15 23:44:16,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-15 23:44:16,714 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-09-15 23:44:16,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-15 23:44:16,734 INFO L225 Difference]: With dead ends: 282 [2020-09-15 23:44:16,734 INFO L226 Difference]: Without dead ends: 218 [2020-09-15 23:44:16,736 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 [2020-09-15 23:44:16,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2020-09-15 23:44:16,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 218. [2020-09-15 23:44:16,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 218 states. [2020-09-15 23:44:16,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 600 transitions. [2020-09-15 23:44:16,816 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 600 transitions. Word has length 8 [2020-09-15 23:44:16,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-15 23:44:16,817 INFO L479 AbstractCegarLoop]: Abstraction has 218 states and 600 transitions. [2020-09-15 23:44:16,817 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-15 23:44:16,817 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 600 transitions. [2020-09-15 23:44:16,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-09-15 23:44:16,819 INFO L414 BasicCegarLoop]: Found error trace [2020-09-15 23:44:16,819 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-15 23:44:16,820 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-15 23:44:16,820 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-15 23:44:16,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-15 23:44:16,821 INFO L82 PathProgramCache]: Analyzing trace with hash -1372085576, now seen corresponding path program 1 times [2020-09-15 23:44:16,821 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-15 23:44:16,821 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [918873851] [2020-09-15 23:44:16,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-15 23:44:16,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-15 23:44:16,913 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-15 23:44:16,914 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [918873851] [2020-09-15 23:44:16,914 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-15 23:44:16,915 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-15 23:44:16,915 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [238441990] [2020-09-15 23:44:16,915 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-15 23:44:16,916 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-15 23:44:16,919 INFO L274 McrAutomatonBuilder]: Finished intersection with 13 states and 15 transitions. [2020-09-15 23:44:16,919 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-15 23:44:16,940 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-15 23:44:16,942 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-15 23:44:16,942 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-15 23:44:16,943 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-15 23:44:16,943 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-15 23:44:16,943 INFO L87 Difference]: Start difference. First operand 218 states and 600 transitions. Second operand 3 states. [2020-09-15 23:44:16,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-15 23:44:16,971 INFO L93 Difference]: Finished difference Result 202 states and 544 transitions. [2020-09-15 23:44:16,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-15 23:44:16,972 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2020-09-15 23:44:16,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-15 23:44:16,975 INFO L225 Difference]: With dead ends: 202 [2020-09-15 23:44:16,975 INFO L226 Difference]: Without dead ends: 202 [2020-09-15 23:44:16,976 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-15 23:44:16,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states. [2020-09-15 23:44:16,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 202. [2020-09-15 23:44:16,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 202 states. [2020-09-15 23:44:16,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 544 transitions. [2020-09-15 23:44:16,996 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 544 transitions. Word has length 9 [2020-09-15 23:44:16,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-15 23:44:16,996 INFO L479 AbstractCegarLoop]: Abstraction has 202 states and 544 transitions. [2020-09-15 23:44:16,996 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-15 23:44:16,997 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 544 transitions. [2020-09-15 23:44:16,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-09-15 23:44:16,998 INFO L414 BasicCegarLoop]: Found error trace [2020-09-15 23:44:16,998 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-15 23:44:16,999 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-15 23:44:16,999 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-15 23:44:16,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-15 23:44:16,999 INFO L82 PathProgramCache]: Analyzing trace with hash 365373016, now seen corresponding path program 1 times [2020-09-15 23:44:17,000 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-15 23:44:17,000 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [719465623] [2020-09-15 23:44:17,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-15 23:44:17,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-15 23:44:17,116 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-15 23:44:17,116 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [719465623] [2020-09-15 23:44:17,116 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-15 23:44:17,117 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-09-15 23:44:17,117 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1806606696] [2020-09-15 23:44:17,117 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-15 23:44:17,119 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-15 23:44:17,122 INFO L274 McrAutomatonBuilder]: Finished intersection with 17 states and 22 transitions. [2020-09-15 23:44:17,122 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-15 23:44:17,158 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-15 23:44:17,158 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-15 23:44:17,158 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-15 23:44:17,159 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-15 23:44:17,159 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-15 23:44:17,159 INFO L87 Difference]: Start difference. First operand 202 states and 544 transitions. Second operand 3 states. [2020-09-15 23:44:17,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-15 23:44:17,168 INFO L93 Difference]: Finished difference Result 198 states and 530 transitions. [2020-09-15 23:44:17,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-15 23:44:17,169 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2020-09-15 23:44:17,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-15 23:44:17,171 INFO L225 Difference]: With dead ends: 198 [2020-09-15 23:44:17,171 INFO L226 Difference]: Without dead ends: 198 [2020-09-15 23:44:17,172 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-15 23:44:17,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states. [2020-09-15 23:44:17,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 198. [2020-09-15 23:44:17,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 198 states. [2020-09-15 23:44:17,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 530 transitions. [2020-09-15 23:44:17,189 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 530 transitions. Word has length 10 [2020-09-15 23:44:17,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-15 23:44:17,189 INFO L479 AbstractCegarLoop]: Abstraction has 198 states and 530 transitions. [2020-09-15 23:44:17,189 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-15 23:44:17,190 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 530 transitions. [2020-09-15 23:44:17,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-09-15 23:44:17,194 INFO L414 BasicCegarLoop]: Found error trace [2020-09-15 23:44:17,194 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-15 23:44:17,194 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-15 23:44:17,195 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-15 23:44:17,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-15 23:44:17,195 INFO L82 PathProgramCache]: Analyzing trace with hash -1571968161, now seen corresponding path program 1 times [2020-09-15 23:44:17,196 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-15 23:44:17,196 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1065816135] [2020-09-15 23:44:17,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-15 23:44:17,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-15 23:44:17,269 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-15 23:44:17,269 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1065816135] [2020-09-15 23:44:17,269 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-15 23:44:17,269 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-09-15 23:44:17,270 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1330826349] [2020-09-15 23:44:17,272 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-15 23:44:17,276 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-15 23:44:17,279 INFO L274 McrAutomatonBuilder]: Finished intersection with 31 states and 55 transitions. [2020-09-15 23:44:17,279 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-15 23:44:17,374 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-15 23:44:17,374 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-15 23:44:17,374 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-15 23:44:17,375 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-15 23:44:17,375 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-15 23:44:17,375 INFO L87 Difference]: Start difference. First operand 198 states and 530 transitions. Second operand 3 states. [2020-09-15 23:44:17,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-15 23:44:17,382 INFO L93 Difference]: Finished difference Result 192 states and 511 transitions. [2020-09-15 23:44:17,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-15 23:44:17,382 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2020-09-15 23:44:17,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-15 23:44:17,384 INFO L225 Difference]: With dead ends: 192 [2020-09-15 23:44:17,385 INFO L226 Difference]: Without dead ends: 192 [2020-09-15 23:44:17,385 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-15 23:44:17,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192 states. [2020-09-15 23:44:17,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192 to 192. [2020-09-15 23:44:17,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 192 states. [2020-09-15 23:44:17,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 192 states and 511 transitions. [2020-09-15 23:44:17,402 INFO L78 Accepts]: Start accepts. Automaton has 192 states and 511 transitions. Word has length 11 [2020-09-15 23:44:17,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-15 23:44:17,403 INFO L479 AbstractCegarLoop]: Abstraction has 192 states and 511 transitions. [2020-09-15 23:44:17,403 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-15 23:44:17,403 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 511 transitions. [2020-09-15 23:44:17,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-09-15 23:44:17,407 INFO L414 BasicCegarLoop]: Found error trace [2020-09-15 23:44:17,407 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-15 23:44:17,407 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-15 23:44:17,408 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-15 23:44:17,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-15 23:44:17,408 INFO L82 PathProgramCache]: Analyzing trace with hash -1486373385, now seen corresponding path program 1 times [2020-09-15 23:44:17,408 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-15 23:44:17,409 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1710915636] [2020-09-15 23:44:17,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-15 23:44:17,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-15 23:44:17,505 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-15 23:44:17,505 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1710915636] [2020-09-15 23:44:17,505 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-15 23:44:17,506 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-15 23:44:17,506 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [214227591] [2020-09-15 23:44:17,506 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-15 23:44:17,507 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-15 23:44:17,511 INFO L274 McrAutomatonBuilder]: Finished intersection with 35 states and 63 transitions. [2020-09-15 23:44:17,512 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-15 23:44:17,550 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-09-15 23:44:17,584 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-09-15 23:44:17,621 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-09-15 23:44:17,643 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-09-15 23:44:17,672 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-09-15 23:44:17,706 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-09-15 23:44:17,732 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-09-15 23:44:17,753 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [3186#(not (= 3 ~__unbuffered_cnt~0))] [2020-09-15 23:44:17,753 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-15 23:44:17,754 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-15 23:44:17,754 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-15 23:44:17,754 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-15 23:44:17,754 INFO L87 Difference]: Start difference. First operand 192 states and 511 transitions. Second operand 5 states. [2020-09-15 23:44:17,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-15 23:44:17,822 INFO L93 Difference]: Finished difference Result 187 states and 470 transitions. [2020-09-15 23:44:17,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-15 23:44:17,823 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2020-09-15 23:44:17,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-15 23:44:17,824 INFO L225 Difference]: With dead ends: 187 [2020-09-15 23:44:17,824 INFO L226 Difference]: Without dead ends: 123 [2020-09-15 23:44:17,825 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 16 SyntacticMatches, 5 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-15 23:44:17,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2020-09-15 23:44:17,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 123. [2020-09-15 23:44:17,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 123 states. [2020-09-15 23:44:17,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 272 transitions. [2020-09-15 23:44:17,832 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 272 transitions. Word has length 12 [2020-09-15 23:44:17,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-15 23:44:17,832 INFO L479 AbstractCegarLoop]: Abstraction has 123 states and 272 transitions. [2020-09-15 23:44:17,833 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-15 23:44:17,833 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 272 transitions. [2020-09-15 23:44:17,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-09-15 23:44:17,834 INFO L414 BasicCegarLoop]: Found error trace [2020-09-15 23:44:17,834 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-15 23:44:17,834 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-15 23:44:17,834 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-15 23:44:17,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-15 23:44:17,835 INFO L82 PathProgramCache]: Analyzing trace with hash 1920279248, now seen corresponding path program 1 times [2020-09-15 23:44:17,835 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-15 23:44:17,836 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2072908303] [2020-09-15 23:44:17,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-15 23:44:17,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-15 23:44:17,903 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-15 23:44:17,906 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2072908303] [2020-09-15 23:44:17,906 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-15 23:44:17,906 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-15 23:44:17,906 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1512204439] [2020-09-15 23:44:17,907 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-15 23:44:17,909 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-15 23:44:17,912 INFO L274 McrAutomatonBuilder]: Finished intersection with 23 states and 30 transitions. [2020-09-15 23:44:17,912 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-15 23:44:17,916 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-15 23:44:17,916 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-15 23:44:17,916 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-15 23:44:17,917 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-15 23:44:17,917 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-15 23:44:17,917 INFO L87 Difference]: Start difference. First operand 123 states and 272 transitions. Second operand 3 states. [2020-09-15 23:44:17,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-15 23:44:17,926 INFO L93 Difference]: Finished difference Result 155 states and 330 transitions. [2020-09-15 23:44:17,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-15 23:44:17,926 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 14 [2020-09-15 23:44:17,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-15 23:44:17,928 INFO L225 Difference]: With dead ends: 155 [2020-09-15 23:44:17,928 INFO L226 Difference]: Without dead ends: 124 [2020-09-15 23:44:17,928 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-15 23:44:17,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2020-09-15 23:44:17,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 122. [2020-09-15 23:44:17,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 122 states. [2020-09-15 23:44:17,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 257 transitions. [2020-09-15 23:44:17,933 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 257 transitions. Word has length 14 [2020-09-15 23:44:17,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-15 23:44:17,934 INFO L479 AbstractCegarLoop]: Abstraction has 122 states and 257 transitions. [2020-09-15 23:44:17,934 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-15 23:44:17,934 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 257 transitions. [2020-09-15 23:44:17,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-09-15 23:44:17,935 INFO L414 BasicCegarLoop]: Found error trace [2020-09-15 23:44:17,936 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-15 23:44:17,936 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-15 23:44:17,936 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-15 23:44:17,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-15 23:44:17,936 INFO L82 PathProgramCache]: Analyzing trace with hash 451653261, now seen corresponding path program 1 times [2020-09-15 23:44:17,937 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-15 23:44:17,937 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [210320503] [2020-09-15 23:44:17,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-15 23:44:17,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-15 23:44:17,994 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-15 23:44:17,995 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [210320503] [2020-09-15 23:44:17,995 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-15 23:44:17,995 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-15 23:44:17,996 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1839474914] [2020-09-15 23:44:17,996 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-15 23:44:17,998 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-15 23:44:18,004 INFO L274 McrAutomatonBuilder]: Finished intersection with 49 states and 91 transitions. [2020-09-15 23:44:18,005 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-15 23:44:18,078 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-15 23:44:18,078 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-15 23:44:18,079 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-15 23:44:18,079 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-15 23:44:18,079 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-15 23:44:18,079 INFO L87 Difference]: Start difference. First operand 122 states and 257 transitions. Second operand 4 states. [2020-09-15 23:44:18,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-15 23:44:18,102 INFO L93 Difference]: Finished difference Result 154 states and 308 transitions. [2020-09-15 23:44:18,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-15 23:44:18,103 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 15 [2020-09-15 23:44:18,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-15 23:44:18,104 INFO L225 Difference]: With dead ends: 154 [2020-09-15 23:44:18,104 INFO L226 Difference]: Without dead ends: 116 [2020-09-15 23:44:18,104 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-15 23:44:18,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2020-09-15 23:44:18,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 114. [2020-09-15 23:44:18,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 114 states. [2020-09-15 23:44:18,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 222 transitions. [2020-09-15 23:44:18,109 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 222 transitions. Word has length 15 [2020-09-15 23:44:18,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-15 23:44:18,109 INFO L479 AbstractCegarLoop]: Abstraction has 114 states and 222 transitions. [2020-09-15 23:44:18,110 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-15 23:44:18,110 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 222 transitions. [2020-09-15 23:44:18,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-09-15 23:44:18,111 INFO L414 BasicCegarLoop]: Found error trace [2020-09-15 23:44:18,111 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-15 23:44:18,111 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-15 23:44:18,111 INFO L427 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-15 23:44:18,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-15 23:44:18,112 INFO L82 PathProgramCache]: Analyzing trace with hash -600886075, now seen corresponding path program 1 times [2020-09-15 23:44:18,112 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-15 23:44:18,112 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [323792769] [2020-09-15 23:44:18,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-15 23:44:18,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-15 23:44:18,190 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-15 23:44:18,190 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [323792769] [2020-09-15 23:44:18,190 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-15 23:44:18,191 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-15 23:44:18,191 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1789855744] [2020-09-15 23:44:18,191 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-15 23:44:18,193 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-15 23:44:18,198 INFO L274 McrAutomatonBuilder]: Finished intersection with 43 states and 75 transitions. [2020-09-15 23:44:18,199 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-15 23:44:18,206 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-09-15 23:44:18,268 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 4 new interpolants: [4421#(not (= 3 ~__unbuffered_cnt~0)), 4422#(not (= ~__unbuffered_cnt~0 2)), 4423#(not (= ~__unbuffered_cnt~0 1)), 4424#(<= ~__unbuffered_cnt~0 0)] [2020-09-15 23:44:18,269 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-15 23:44:18,269 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-15 23:44:18,269 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-15 23:44:18,270 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2020-09-15 23:44:18,270 INFO L87 Difference]: Start difference. First operand 114 states and 222 transitions. Second operand 10 states. [2020-09-15 23:44:18,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-15 23:44:18,346 INFO L93 Difference]: Finished difference Result 110 states and 212 transitions. [2020-09-15 23:44:18,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-15 23:44:18,346 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 15 [2020-09-15 23:44:18,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-15 23:44:18,347 INFO L225 Difference]: With dead ends: 110 [2020-09-15 23:44:18,347 INFO L226 Difference]: Without dead ends: 38 [2020-09-15 23:44:18,348 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2020-09-15 23:44:18,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2020-09-15 23:44:18,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2020-09-15 23:44:18,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2020-09-15 23:44:18,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 62 transitions. [2020-09-15 23:44:18,350 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 62 transitions. Word has length 15 [2020-09-15 23:44:18,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-15 23:44:18,350 INFO L479 AbstractCegarLoop]: Abstraction has 38 states and 62 transitions. [2020-09-15 23:44:18,351 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-15 23:44:18,351 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 62 transitions. [2020-09-15 23:44:18,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-09-15 23:44:18,351 INFO L414 BasicCegarLoop]: Found error trace [2020-09-15 23:44:18,352 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-15 23:44:18,352 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-15 23:44:18,352 INFO L427 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-15 23:44:18,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-15 23:44:18,353 INFO L82 PathProgramCache]: Analyzing trace with hash 13395029, now seen corresponding path program 1 times [2020-09-15 23:44:18,353 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-15 23:44:18,353 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [737712836] [2020-09-15 23:44:18,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-15 23:44:18,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-15 23:44:18,413 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-15 23:44:18,414 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [737712836] [2020-09-15 23:44:18,414 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-15 23:44:18,414 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-15 23:44:18,415 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1256166044] [2020-09-15 23:44:18,415 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-15 23:44:18,417 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-15 23:44:18,423 INFO L274 McrAutomatonBuilder]: Finished intersection with 37 states and 54 transitions. [2020-09-15 23:44:18,424 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-15 23:44:18,433 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-15 23:44:18,433 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-15 23:44:18,433 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-15 23:44:18,434 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-15 23:44:18,434 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-15 23:44:18,434 INFO L87 Difference]: Start difference. First operand 38 states and 62 transitions. Second operand 4 states. [2020-09-15 23:44:18,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-15 23:44:18,476 INFO L93 Difference]: Finished difference Result 56 states and 90 transitions. [2020-09-15 23:44:18,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-15 23:44:18,476 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-09-15 23:44:18,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-15 23:44:18,477 INFO L225 Difference]: With dead ends: 56 [2020-09-15 23:44:18,477 INFO L226 Difference]: Without dead ends: 35 [2020-09-15 23:44:18,478 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-15 23:44:18,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2020-09-15 23:44:18,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2020-09-15 23:44:18,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2020-09-15 23:44:18,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 56 transitions. [2020-09-15 23:44:18,480 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 56 transitions. Word has length 17 [2020-09-15 23:44:18,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-15 23:44:18,481 INFO L479 AbstractCegarLoop]: Abstraction has 35 states and 56 transitions. [2020-09-15 23:44:18,481 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-15 23:44:18,481 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 56 transitions. [2020-09-15 23:44:18,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-09-15 23:44:18,481 INFO L414 BasicCegarLoop]: Found error trace [2020-09-15 23:44:18,482 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-15 23:44:18,482 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-15 23:44:18,482 INFO L427 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-15 23:44:18,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-15 23:44:18,483 INFO L82 PathProgramCache]: Analyzing trace with hash 265740449, now seen corresponding path program 2 times [2020-09-15 23:44:18,483 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-15 23:44:18,483 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1969895583] [2020-09-15 23:44:18,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-15 23:44:18,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-15 23:44:18,539 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-15 23:44:18,540 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1969895583] [2020-09-15 23:44:18,540 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-15 23:44:18,540 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-15 23:44:18,541 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1660229703] [2020-09-15 23:44:18,541 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-15 23:44:18,542 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-15 23:44:18,549 INFO L274 McrAutomatonBuilder]: Finished intersection with 34 states and 47 transitions. [2020-09-15 23:44:18,549 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-15 23:44:18,571 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-15 23:44:18,571 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-15 23:44:18,571 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-15 23:44:18,572 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-15 23:44:18,572 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-15 23:44:18,572 INFO L87 Difference]: Start difference. First operand 35 states and 56 transitions. Second operand 4 states. [2020-09-15 23:44:18,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-15 23:44:18,592 INFO L93 Difference]: Finished difference Result 34 states and 55 transitions. [2020-09-15 23:44:18,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-15 23:44:18,592 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-09-15 23:44:18,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-15 23:44:18,593 INFO L225 Difference]: With dead ends: 34 [2020-09-15 23:44:18,593 INFO L226 Difference]: Without dead ends: 0 [2020-09-15 23:44:18,593 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 [2020-09-15 23:44:18,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-15 23:44:18,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-15 23:44:18,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-15 23:44:18,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-15 23:44:18,594 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2020-09-15 23:44:18,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-15 23:44:18,595 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-15 23:44:18,595 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-15 23:44:18,595 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-15 23:44:18,595 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-15 23:44:18,596 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-09-15 23:44:18,601 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.09 11:44:18 BasicIcfg [2020-09-15 23:44:18,601 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-15 23:44:18,605 INFO L168 Benchmark]: Toolchain (without parser) took 5683.15 ms. Allocated memory was 141.0 MB in the beginning and 282.1 MB in the end (delta: 141.0 MB). Free memory was 102.9 MB in the beginning and 232.2 MB in the end (delta: -129.4 MB). Peak memory consumption was 11.7 MB. Max. memory is 7.1 GB. [2020-09-15 23:44:18,606 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 141.0 MB. Free memory was 122.6 MB in the beginning and 122.4 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-15 23:44:18,606 INFO L168 Benchmark]: CACSL2BoogieTranslator took 815.16 ms. Allocated memory was 141.0 MB in the beginning and 205.0 MB in the end (delta: 64.0 MB). Free memory was 102.2 MB in the beginning and 162.4 MB in the end (delta: -60.2 MB). Peak memory consumption was 26.2 MB. Max. memory is 7.1 GB. [2020-09-15 23:44:18,607 INFO L168 Benchmark]: Boogie Procedure Inliner took 61.80 ms. Allocated memory is still 205.0 MB. Free memory was 162.4 MB in the beginning and 159.8 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB. [2020-09-15 23:44:18,608 INFO L168 Benchmark]: Boogie Preprocessor took 36.84 ms. Allocated memory is still 205.0 MB. Free memory was 159.8 MB in the beginning and 158.6 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2020-09-15 23:44:18,609 INFO L168 Benchmark]: RCFGBuilder took 512.89 ms. Allocated memory is still 205.0 MB. Free memory was 158.6 MB in the beginning and 136.6 MB in the end (delta: 22.0 MB). Peak memory consumption was 22.0 MB. Max. memory is 7.1 GB. [2020-09-15 23:44:18,610 INFO L168 Benchmark]: TraceAbstraction took 4247.83 ms. Allocated memory was 205.0 MB in the beginning and 282.1 MB in the end (delta: 77.1 MB). Free memory was 135.9 MB in the beginning and 232.2 MB in the end (delta: -96.3 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-15 23:44:18,614 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 141.0 MB. Free memory was 122.6 MB in the beginning and 122.4 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 815.16 ms. Allocated memory was 141.0 MB in the beginning and 205.0 MB in the end (delta: 64.0 MB). Free memory was 102.2 MB in the beginning and 162.4 MB in the end (delta: -60.2 MB). Peak memory consumption was 26.2 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 61.80 ms. Allocated memory is still 205.0 MB. Free memory was 162.4 MB in the beginning and 159.8 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 36.84 ms. Allocated memory is still 205.0 MB. Free memory was 159.8 MB in the beginning and 158.6 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 512.89 ms. Allocated memory is still 205.0 MB. Free memory was 158.6 MB in the beginning and 136.6 MB in the end (delta: 22.0 MB). Peak memory consumption was 22.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 4247.83 ms. Allocated memory was 205.0 MB in the beginning and 282.1 MB in the end (delta: 77.1 MB). Free memory was 135.9 MB in the beginning and 232.2 MB in the end (delta: -96.3 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: 1.7s, 77 ProgramPointsBefore, 31 ProgramPointsAfterwards, 69 TransitionsBefore, 22 TransitionsAfterwards, 1260 CoEnabledTransitionPairs, 8 FixpointIterations, 13 TrivialSequentialCompositions, 37 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 1 ChoiceCompositions, 655 VarBasedMoverChecksPositive, 29 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 2826 CheckedPairsTotal, 58 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, 68 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 4.0s, OverallIterations: 10, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.7s, HoareTripleCheckerStatistics: 196 SDtfs, 125 SDslu, 232 SDs, 0 SdLazy, 133 SolverSat, 23 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 184 GetRequests, 151 SyntacticMatches, 5 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s 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, 4 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 128 NumberOfCodeBlocks, 128 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 118 ConstructedInterpolants, 0 QuantifiedInterpolants, 3872 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...