/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/safe029_pso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c7e336b [2020-10-06 01:11:08,453 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-06 01:11:08,456 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-06 01:11:08,479 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-06 01:11:08,479 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-06 01:11:08,480 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-06 01:11:08,482 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-06 01:11:08,483 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-06 01:11:08,485 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-06 01:11:08,486 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-06 01:11:08,487 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-06 01:11:08,488 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-06 01:11:08,488 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-06 01:11:08,489 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-06 01:11:08,490 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-06 01:11:08,491 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-06 01:11:08,492 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-06 01:11:08,492 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-06 01:11:08,494 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-06 01:11:08,496 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-06 01:11:08,497 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-06 01:11:08,498 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-06 01:11:08,499 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-06 01:11:08,500 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-06 01:11:08,502 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-06 01:11:08,503 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-06 01:11:08,503 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-06 01:11:08,504 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-06 01:11:08,504 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-06 01:11:08,505 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-06 01:11:08,505 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-06 01:11:08,506 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-06 01:11:08,506 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-06 01:11:08,507 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-06 01:11:08,508 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-06 01:11:08,508 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-06 01:11:08,509 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-06 01:11:08,509 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-06 01:11:08,509 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-06 01:11:08,510 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-06 01:11:08,511 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-06 01:11:08,511 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 [2020-10-06 01:11:08,534 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-06 01:11:08,534 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-06 01:11:08,535 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-06 01:11:08,536 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-06 01:11:08,536 INFO L138 SettingsManager]: * Use SBE=true [2020-10-06 01:11:08,539 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-06 01:11:08,540 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-06 01:11:08,540 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-06 01:11:08,540 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-06 01:11:08,540 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-06 01:11:08,540 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-06 01:11:08,540 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-06 01:11:08,541 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-06 01:11:08,541 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-06 01:11:08,541 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-06 01:11:08,541 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-06 01:11:08,541 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-06 01:11:08,542 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-06 01:11:08,542 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-06 01:11:08,544 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-06 01:11:08,544 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-06 01:11:08,544 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-06 01:11:08,545 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-06 01:11:08,545 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-10-06 01:11:08,545 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-06 01:11:08,545 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-06 01:11:08,545 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-06 01:11:08,546 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2020-10-06 01:11:08,546 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-10-06 01:11:08,549 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-06 01:11:08,549 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2020-10-06 01:11:08,878 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-06 01:11:08,891 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-06 01:11:08,895 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-06 01:11:08,896 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-06 01:11:08,896 INFO L275 PluginConnector]: CDTParser initialized [2020-10-06 01:11:08,897 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe029_pso.opt.i [2020-10-06 01:11:08,966 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/28e6c0fb7/99275e59e6c94722ab2bada06a8ff4db/FLAG507b0b1b3 [2020-10-06 01:11:09,483 INFO L306 CDTParser]: Found 1 translation units. [2020-10-06 01:11:09,484 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe029_pso.opt.i [2020-10-06 01:11:09,503 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/28e6c0fb7/99275e59e6c94722ab2bada06a8ff4db/FLAG507b0b1b3 [2020-10-06 01:11:09,845 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/28e6c0fb7/99275e59e6c94722ab2bada06a8ff4db [2020-10-06 01:11:09,853 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-06 01:11:09,855 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-06 01:11:09,856 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-06 01:11:09,856 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-06 01:11:09,859 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-06 01:11:09,860 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.10 01:11:09" (1/1) ... [2020-10-06 01:11:09,863 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@72145e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:11:09, skipping insertion in model container [2020-10-06 01:11:09,863 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.10 01:11:09" (1/1) ... [2020-10-06 01:11:09,871 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-06 01:11:09,916 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-06 01:11:10,456 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-06 01:11:10,480 INFO L203 MainTranslator]: Completed pre-run [2020-10-06 01:11:10,550 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-06 01:11:10,620 INFO L208 MainTranslator]: Completed translation [2020-10-06 01:11:10,621 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:11:10 WrapperNode [2020-10-06 01:11:10,621 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-06 01:11:10,621 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-06 01:11:10,622 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-06 01:11:10,622 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-06 01:11:10,631 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:11:10" (1/1) ... [2020-10-06 01:11:10,652 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:11:10" (1/1) ... [2020-10-06 01:11:10,685 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-06 01:11:10,686 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-06 01:11:10,686 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-06 01:11:10,686 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-06 01:11:10,696 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:11:10" (1/1) ... [2020-10-06 01:11:10,696 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:11:10" (1/1) ... [2020-10-06 01:11:10,701 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:11:10" (1/1) ... [2020-10-06 01:11:10,702 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:11:10" (1/1) ... [2020-10-06 01:11:10,711 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:11:10" (1/1) ... [2020-10-06 01:11:10,715 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:11:10" (1/1) ... [2020-10-06 01:11:10,718 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:11:10" (1/1) ... [2020-10-06 01:11:10,723 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-06 01:11:10,724 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-06 01:11:10,724 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-06 01:11:10,724 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-06 01:11:10,725 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:11:10" (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 [2020-10-06 01:11:10,786 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-06 01:11:10,786 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-06 01:11:10,786 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-06 01:11:10,786 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-06 01:11:10,787 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-06 01:11:10,787 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-06 01:11:10,787 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-06 01:11:10,787 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-06 01:11:10,787 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-06 01:11:10,788 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-06 01:11:10,788 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-06 01:11:10,790 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-06 01:11:12,650 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-06 01:11:12,650 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-10-06 01:11:12,652 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.10 01:11:12 BoogieIcfgContainer [2020-10-06 01:11:12,652 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-06 01:11:12,653 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-06 01:11:12,653 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-06 01:11:12,656 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-06 01:11:12,656 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.10 01:11:09" (1/3) ... [2020-10-06 01:11:12,657 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@251d07c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.10 01:11:12, skipping insertion in model container [2020-10-06 01:11:12,657 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:11:10" (2/3) ... [2020-10-06 01:11:12,657 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@251d07c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.10 01:11:12, skipping insertion in model container [2020-10-06 01:11:12,658 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.10 01:11:12" (3/3) ... [2020-10-06 01:11:12,659 INFO L109 eAbstractionObserver]: Analyzing ICFG safe029_pso.opt.i [2020-10-06 01:11:12,671 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-06 01:11:12,671 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-06 01:11:12,680 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-10-06 01:11:12,681 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-06 01:11:12,709 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:11:12,710 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:11:12,710 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:11:12,711 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:11:12,711 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:11:12,711 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:11:12,711 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:11:12,712 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:11:12,712 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:11:12,712 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:11:12,712 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:11:12,713 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:11:12,713 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:11:12,714 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:11:12,714 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:11:12,714 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:11:12,714 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:11:12,715 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:11:12,715 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:11:12,715 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:11:12,715 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:11:12,716 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:11:12,716 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:11:12,716 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:11:12,716 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:11:12,716 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:11:12,717 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:11:12,717 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:11:12,717 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:11:12,718 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:11:12,722 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:11:12,722 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:11:12,722 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:11:12,722 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:11:12,723 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:11:12,723 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:11:12,723 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:11:12,723 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:11:12,724 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:11:12,724 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:11:12,727 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:11:12,727 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:11:12,727 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:11:12,727 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:11:12,728 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:11:12,728 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:11:12,728 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:11:12,728 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:11:12,729 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:11:12,729 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:11:12,729 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:11:12,729 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:11:12,748 INFO L251 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-06 01:11:12,772 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-06 01:11:12,772 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-06 01:11:12,772 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-06 01:11:12,772 INFO L378 AbstractCegarLoop]: Backedges is MCR [2020-10-06 01:11:12,772 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-06 01:11:12,773 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-06 01:11:12,773 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-06 01:11:12,773 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-06 01:11:12,789 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 79 places, 74 transitions, 158 flow [2020-10-06 01:11:12,791 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 79 places, 74 transitions, 158 flow [2020-10-06 01:11:12,834 INFO L129 PetriNetUnfolder]: 2/72 cut-off events. [2020-10-06 01:11:12,835 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-06 01:11:12,839 INFO L80 FinitePrefix]: Finished finitePrefix Result has 79 conditions, 72 events. 2/72 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 47 event pairs, 0 based on Foata normal form. 0/68 useless extension candidates. Maximal degree in co-relation 45. Up to 2 conditions per place. [2020-10-06 01:11:12,842 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 79 places, 74 transitions, 158 flow [2020-10-06 01:11:12,863 INFO L129 PetriNetUnfolder]: 2/72 cut-off events. [2020-10-06 01:11:12,863 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-06 01:11:12,864 INFO L80 FinitePrefix]: Finished finitePrefix Result has 79 conditions, 72 events. 2/72 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 47 event pairs, 0 based on Foata normal form. 0/68 useless extension candidates. Maximal degree in co-relation 45. Up to 2 conditions per place. [2020-10-06 01:11:12,865 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 888 [2020-10-06 01:11:12,866 INFO L182 etLargeBlockEncoding]: Variable Check. [2020-10-06 01:11:13,439 WARN L193 SmtUtils]: Spent 348.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 58 [2020-10-06 01:11:13,770 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 39 [2020-10-06 01:11:14,835 WARN L193 SmtUtils]: Spent 1.03 s on a formula simplification. DAG size of input: 224 DAG size of output: 184 [2020-10-06 01:11:14,868 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 5, 3, 2, 2, 1] term [2020-10-06 01:11:14,868 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-06 01:11:14,871 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 3, 2, 1] term [2020-10-06 01:11:14,873 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-06 01:11:15,610 WARN L193 SmtUtils]: Spent 715.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 119 [2020-10-06 01:11:16,601 WARN L193 SmtUtils]: Spent 705.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 115 [2020-10-06 01:11:16,898 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2020-10-06 01:11:17,491 WARN L193 SmtUtils]: Spent 591.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 106 [2020-10-06 01:11:17,754 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-10-06 01:11:18,292 WARN L193 SmtUtils]: Spent 329.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-06 01:11:18,624 WARN L193 SmtUtils]: Spent 329.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-06 01:11:19,078 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 77 [2020-10-06 01:11:19,185 INFO L206 etLargeBlockEncoding]: Checked pairs total: 2209 [2020-10-06 01:11:19,186 INFO L214 etLargeBlockEncoding]: Total number of compositions: 63 [2020-10-06 01:11:19,190 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 26 places, 19 transitions, 48 flow [2020-10-06 01:11:19,207 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 162 states. [2020-10-06 01:11:19,209 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states. [2020-10-06 01:11:19,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-10-06 01:11:19,216 INFO L414 BasicCegarLoop]: Found error trace [2020-10-06 01:11:19,217 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-10-06 01:11:19,217 INFO L427 AbstractCegarLoop]: === Iteration 1 === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-06 01:11:19,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-06 01:11:19,223 INFO L82 PathProgramCache]: Analyzing trace with hash 859717262, now seen corresponding path program 1 times [2020-10-06 01:11:19,251 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-06 01:11:19,252 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1982984949] [2020-10-06 01:11:19,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-06 01:11:19,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-06 01:11:19,530 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-06 01:11:19,531 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1982984949] [2020-10-06 01:11:19,532 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-06 01:11:19,532 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-06 01:11:19,533 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [229248046] [2020-10-06 01:11:19,534 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-06 01:11:19,537 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-06 01:11:19,551 INFO L258 McrAutomatonBuilder]: Finished intersection with 6 states and 5 transitions. [2020-10-06 01:11:19,551 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-06 01:11:19,556 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-06 01:11:19,556 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-06 01:11:19,557 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-06 01:11:19,572 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-06 01:11:19,573 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-06 01:11:19,575 INFO L87 Difference]: Start difference. First operand 162 states. Second operand 3 states. [2020-10-06 01:11:19,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-06 01:11:19,651 INFO L93 Difference]: Finished difference Result 137 states and 320 transitions. [2020-10-06 01:11:19,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-06 01:11:19,654 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2020-10-06 01:11:19,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-06 01:11:19,666 INFO L225 Difference]: With dead ends: 137 [2020-10-06 01:11:19,666 INFO L226 Difference]: Without dead ends: 112 [2020-10-06 01:11:19,668 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 [2020-10-06 01:11:19,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2020-10-06 01:11:19,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 112. [2020-10-06 01:11:19,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 112 states. [2020-10-06 01:11:19,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 255 transitions. [2020-10-06 01:11:19,719 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 255 transitions. Word has length 5 [2020-10-06 01:11:19,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-06 01:11:19,720 INFO L479 AbstractCegarLoop]: Abstraction has 112 states and 255 transitions. [2020-10-06 01:11:19,720 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-06 01:11:19,720 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 255 transitions. [2020-10-06 01:11:19,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-10-06 01:11:19,721 INFO L414 BasicCegarLoop]: Found error trace [2020-10-06 01:11:19,721 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-10-06 01:11:19,722 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-06 01:11:19,722 INFO L427 AbstractCegarLoop]: === Iteration 2 === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-06 01:11:19,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-06 01:11:19,722 INFO L82 PathProgramCache]: Analyzing trace with hash 1554625103, now seen corresponding path program 1 times [2020-10-06 01:11:19,726 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-06 01:11:19,726 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [32059451] [2020-10-06 01:11:19,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-06 01:11:19,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-06 01:11:19,886 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-06 01:11:19,886 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [32059451] [2020-10-06 01:11:19,887 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-06 01:11:19,887 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-06 01:11:19,888 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [640888494] [2020-10-06 01:11:19,888 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-06 01:11:19,890 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-06 01:11:19,892 INFO L258 McrAutomatonBuilder]: Finished intersection with 8 states and 7 transitions. [2020-10-06 01:11:19,892 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-06 01:11:19,893 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-06 01:11:19,894 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-06 01:11:19,894 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-06 01:11:19,894 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-06 01:11:19,895 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-06 01:11:19,895 INFO L87 Difference]: Start difference. First operand 112 states and 255 transitions. Second operand 3 states. [2020-10-06 01:11:19,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-06 01:11:19,930 INFO L93 Difference]: Finished difference Result 111 states and 252 transitions. [2020-10-06 01:11:19,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-06 01:11:19,931 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2020-10-06 01:11:19,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-06 01:11:19,933 INFO L225 Difference]: With dead ends: 111 [2020-10-06 01:11:19,933 INFO L226 Difference]: Without dead ends: 111 [2020-10-06 01:11:19,934 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 [2020-10-06 01:11:19,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2020-10-06 01:11:19,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 111. [2020-10-06 01:11:19,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 111 states. [2020-10-06 01:11:19,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 252 transitions. [2020-10-06 01:11:19,947 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 252 transitions. Word has length 7 [2020-10-06 01:11:19,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-06 01:11:19,948 INFO L479 AbstractCegarLoop]: Abstraction has 111 states and 252 transitions. [2020-10-06 01:11:19,948 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-06 01:11:19,948 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 252 transitions. [2020-10-06 01:11:19,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-06 01:11:19,949 INFO L414 BasicCegarLoop]: Found error trace [2020-10-06 01:11:19,949 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-06 01:11:19,949 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-06 01:11:19,950 INFO L427 AbstractCegarLoop]: === Iteration 3 === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-06 01:11:19,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-06 01:11:19,950 INFO L82 PathProgramCache]: Analyzing trace with hash 948719512, now seen corresponding path program 1 times [2020-10-06 01:11:19,952 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-06 01:11:19,952 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [28424066] [2020-10-06 01:11:19,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-06 01:11:19,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-06 01:11:20,071 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-06 01:11:20,071 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [28424066] [2020-10-06 01:11:20,072 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-06 01:11:20,072 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-06 01:11:20,072 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1872393152] [2020-10-06 01:11:20,072 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-06 01:11:20,073 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-06 01:11:20,076 INFO L258 McrAutomatonBuilder]: Finished intersection with 10 states and 10 transitions. [2020-10-06 01:11:20,076 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-06 01:11:20,090 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-06 01:11:20,090 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-06 01:11:20,090 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-06 01:11:20,091 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-06 01:11:20,091 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-10-06 01:11:20,091 INFO L87 Difference]: Start difference. First operand 111 states and 252 transitions. Second operand 5 states. [2020-10-06 01:11:20,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-06 01:11:20,139 INFO L93 Difference]: Finished difference Result 110 states and 249 transitions. [2020-10-06 01:11:20,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-06 01:11:20,140 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 8 [2020-10-06 01:11:20,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-06 01:11:20,142 INFO L225 Difference]: With dead ends: 110 [2020-10-06 01:11:20,142 INFO L226 Difference]: Without dead ends: 110 [2020-10-06 01:11:20,142 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-10-06 01:11:20,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2020-10-06 01:11:20,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 110. [2020-10-06 01:11:20,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 110 states. [2020-10-06 01:11:20,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 249 transitions. [2020-10-06 01:11:20,154 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 249 transitions. Word has length 8 [2020-10-06 01:11:20,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-06 01:11:20,155 INFO L479 AbstractCegarLoop]: Abstraction has 110 states and 249 transitions. [2020-10-06 01:11:20,155 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-06 01:11:20,155 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 249 transitions. [2020-10-06 01:11:20,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-06 01:11:20,156 INFO L414 BasicCegarLoop]: Found error trace [2020-10-06 01:11:20,156 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-06 01:11:20,156 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-06 01:11:20,157 INFO L427 AbstractCegarLoop]: === Iteration 4 === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-06 01:11:20,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-06 01:11:20,157 INFO L82 PathProgramCache]: Analyzing trace with hash 948737399, now seen corresponding path program 1 times [2020-10-06 01:11:20,158 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-06 01:11:20,159 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [795907483] [2020-10-06 01:11:20,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-06 01:11:20,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-06 01:11:20,332 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-06 01:11:20,333 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [795907483] [2020-10-06 01:11:20,333 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-06 01:11:20,334 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-06 01:11:20,334 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [222455131] [2020-10-06 01:11:20,334 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-06 01:11:20,335 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-06 01:11:20,337 INFO L258 McrAutomatonBuilder]: Finished intersection with 13 states and 16 transitions. [2020-10-06 01:11:20,337 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-06 01:11:20,356 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 3, 3, 2, 3, 2, 1] term [2020-10-06 01:11:20,356 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-06 01:11:20,358 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 3, 3, 2, 1] term [2020-10-06 01:11:20,358 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-06 01:11:20,361 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-06 01:11:20,370 INFO L603 QuantifierPusher]: Distributing 3 disjuncts over 4 conjuncts [2020-10-06 01:11:20,384 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-06 01:11:20,392 INFO L603 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-10-06 01:11:20,406 INFO L603 QuantifierPusher]: Distributing 3 disjuncts over 4 conjuncts [2020-10-06 01:11:20,411 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-06 01:11:20,418 INFO L603 QuantifierPusher]: Distributing 3 disjuncts over 4 conjuncts [2020-10-06 01:11:20,446 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-06 01:11:20,447 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-06 01:11:20,447 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-06 01:11:20,447 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-06 01:11:20,448 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-06 01:11:20,448 INFO L87 Difference]: Start difference. First operand 110 states and 249 transitions. Second operand 4 states. [2020-10-06 01:11:20,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-06 01:11:20,482 INFO L93 Difference]: Finished difference Result 109 states and 246 transitions. [2020-10-06 01:11:20,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-06 01:11:20,484 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2020-10-06 01:11:20,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-06 01:11:20,485 INFO L225 Difference]: With dead ends: 109 [2020-10-06 01:11:20,485 INFO L226 Difference]: Without dead ends: 109 [2020-10-06 01:11:20,486 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-06 01:11:20,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2020-10-06 01:11:20,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 109. [2020-10-06 01:11:20,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2020-10-06 01:11:20,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 246 transitions. [2020-10-06 01:11:20,494 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 246 transitions. Word has length 8 [2020-10-06 01:11:20,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-06 01:11:20,494 INFO L479 AbstractCegarLoop]: Abstraction has 109 states and 246 transitions. [2020-10-06 01:11:20,494 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-06 01:11:20,494 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 246 transitions. [2020-10-06 01:11:20,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-06 01:11:20,495 INFO L414 BasicCegarLoop]: Found error trace [2020-10-06 01:11:20,496 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-06 01:11:20,496 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-06 01:11:20,496 INFO L427 AbstractCegarLoop]: === Iteration 5 === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-06 01:11:20,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-06 01:11:20,496 INFO L82 PathProgramCache]: Analyzing trace with hash -654518260, now seen corresponding path program 1 times [2020-10-06 01:11:20,498 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-06 01:11:20,498 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1920017620] [2020-10-06 01:11:20,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-06 01:11:20,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-06 01:11:20,562 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-06 01:11:20,563 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1920017620] [2020-10-06 01:11:20,563 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-06 01:11:20,563 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-06 01:11:20,564 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [460899495] [2020-10-06 01:11:20,564 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-06 01:11:20,565 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-06 01:11:20,567 INFO L258 McrAutomatonBuilder]: Finished intersection with 13 states and 15 transitions. [2020-10-06 01:11:20,567 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-06 01:11:20,575 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-06 01:11:20,575 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-06 01:11:20,575 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-06 01:11:20,575 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-06 01:11:20,576 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-06 01:11:20,576 INFO L87 Difference]: Start difference. First operand 109 states and 246 transitions. Second operand 3 states. [2020-10-06 01:11:20,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-06 01:11:20,589 INFO L93 Difference]: Finished difference Result 154 states and 330 transitions. [2020-10-06 01:11:20,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-06 01:11:20,591 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2020-10-06 01:11:20,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-06 01:11:20,592 INFO L225 Difference]: With dead ends: 154 [2020-10-06 01:11:20,592 INFO L226 Difference]: Without dead ends: 118 [2020-10-06 01:11:20,593 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 [2020-10-06 01:11:20,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2020-10-06 01:11:20,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 106. [2020-10-06 01:11:20,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 106 states. [2020-10-06 01:11:20,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 226 transitions. [2020-10-06 01:11:20,600 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 226 transitions. Word has length 9 [2020-10-06 01:11:20,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-06 01:11:20,601 INFO L479 AbstractCegarLoop]: Abstraction has 106 states and 226 transitions. [2020-10-06 01:11:20,601 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-06 01:11:20,601 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 226 transitions. [2020-10-06 01:11:20,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-06 01:11:20,602 INFO L414 BasicCegarLoop]: Found error trace [2020-10-06 01:11:20,602 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-06 01:11:20,602 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-06 01:11:20,603 INFO L427 AbstractCegarLoop]: === Iteration 6 === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-06 01:11:20,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-06 01:11:20,603 INFO L82 PathProgramCache]: Analyzing trace with hash -654466738, now seen corresponding path program 1 times [2020-10-06 01:11:20,605 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-06 01:11:20,605 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1672860402] [2020-10-06 01:11:20,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-06 01:11:20,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-06 01:11:20,695 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-06 01:11:20,695 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1672860402] [2020-10-06 01:11:20,695 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-06 01:11:20,695 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-06 01:11:20,696 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [539353645] [2020-10-06 01:11:20,696 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-06 01:11:20,697 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-06 01:11:20,700 INFO L258 McrAutomatonBuilder]: Finished intersection with 17 states and 24 transitions. [2020-10-06 01:11:20,700 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-06 01:11:20,709 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-06 01:11:20,710 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-06 01:11:20,713 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-06 01:11:20,716 INFO L603 QuantifierPusher]: Distributing 3 disjuncts over 4 conjuncts [2020-10-06 01:11:20,724 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-06 01:11:20,775 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-06 01:11:20,775 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-06 01:11:20,775 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-06 01:11:20,775 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-06 01:11:20,776 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-10-06 01:11:20,776 INFO L87 Difference]: Start difference. First operand 106 states and 226 transitions. Second operand 5 states. [2020-10-06 01:11:20,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-06 01:11:20,840 INFO L93 Difference]: Finished difference Result 104 states and 220 transitions. [2020-10-06 01:11:20,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-06 01:11:20,841 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2020-10-06 01:11:20,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-06 01:11:20,842 INFO L225 Difference]: With dead ends: 104 [2020-10-06 01:11:20,842 INFO L226 Difference]: Without dead ends: 104 [2020-10-06 01:11:20,842 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-10-06 01:11:20,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2020-10-06 01:11:20,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 104. [2020-10-06 01:11:20,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 104 states. [2020-10-06 01:11:20,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 220 transitions. [2020-10-06 01:11:20,848 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 220 transitions. Word has length 9 [2020-10-06 01:11:20,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-06 01:11:20,849 INFO L479 AbstractCegarLoop]: Abstraction has 104 states and 220 transitions. [2020-10-06 01:11:20,849 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-06 01:11:20,849 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 220 transitions. [2020-10-06 01:11:20,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-06 01:11:20,850 INFO L414 BasicCegarLoop]: Found error trace [2020-10-06 01:11:20,850 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-06 01:11:20,851 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-06 01:11:20,851 INFO L427 AbstractCegarLoop]: === Iteration 7 === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-06 01:11:20,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-06 01:11:20,851 INFO L82 PathProgramCache]: Analyzing trace with hash -653912861, now seen corresponding path program 1 times [2020-10-06 01:11:20,853 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-06 01:11:20,853 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [652815715] [2020-10-06 01:11:20,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-06 01:11:20,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-06 01:11:20,911 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-06 01:11:20,912 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [652815715] [2020-10-06 01:11:20,912 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-06 01:11:20,912 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-06 01:11:20,912 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [903852816] [2020-10-06 01:11:20,913 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-06 01:11:20,914 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-06 01:11:20,916 INFO L258 McrAutomatonBuilder]: Finished intersection with 14 states and 17 transitions. [2020-10-06 01:11:20,916 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-06 01:11:20,934 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-06 01:11:20,954 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-06 01:11:20,955 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-06 01:11:20,955 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-06 01:11:20,955 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-06 01:11:20,955 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-06 01:11:20,956 INFO L87 Difference]: Start difference. First operand 104 states and 220 transitions. Second operand 4 states. [2020-10-06 01:11:20,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-06 01:11:20,998 INFO L93 Difference]: Finished difference Result 105 states and 222 transitions. [2020-10-06 01:11:20,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-06 01:11:20,999 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-10-06 01:11:20,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-06 01:11:21,001 INFO L225 Difference]: With dead ends: 105 [2020-10-06 01:11:21,002 INFO L226 Difference]: Without dead ends: 105 [2020-10-06 01:11:21,002 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-06 01:11:21,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2020-10-06 01:11:21,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 105. [2020-10-06 01:11:21,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 105 states. [2020-10-06 01:11:21,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 222 transitions. [2020-10-06 01:11:21,009 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 222 transitions. Word has length 9 [2020-10-06 01:11:21,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-06 01:11:21,009 INFO L479 AbstractCegarLoop]: Abstraction has 105 states and 222 transitions. [2020-10-06 01:11:21,009 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-06 01:11:21,009 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 222 transitions. [2020-10-06 01:11:21,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-06 01:11:21,010 INFO L414 BasicCegarLoop]: Found error trace [2020-10-06 01:11:21,010 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-06 01:11:21,011 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-06 01:11:21,011 INFO L427 AbstractCegarLoop]: === Iteration 8 === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-06 01:11:21,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-06 01:11:21,011 INFO L82 PathProgramCache]: Analyzing trace with hash -655211141, now seen corresponding path program 2 times [2020-10-06 01:11:21,012 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-06 01:11:21,013 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1793071355] [2020-10-06 01:11:21,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-06 01:11:21,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-06 01:11:21,078 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-06 01:11:21,078 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1793071355] [2020-10-06 01:11:21,079 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-06 01:11:21,079 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-06 01:11:21,079 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [695360] [2020-10-06 01:11:21,079 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-06 01:11:21,080 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-06 01:11:21,082 INFO L258 McrAutomatonBuilder]: Finished intersection with 16 states and 21 transitions. [2020-10-06 01:11:21,082 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-06 01:11:21,106 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-06 01:11:21,106 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-06 01:11:21,106 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-06 01:11:21,107 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-06 01:11:21,107 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-10-06 01:11:21,107 INFO L87 Difference]: Start difference. First operand 105 states and 222 transitions. Second operand 5 states. [2020-10-06 01:11:21,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-06 01:11:21,153 INFO L93 Difference]: Finished difference Result 102 states and 214 transitions. [2020-10-06 01:11:21,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-06 01:11:21,159 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2020-10-06 01:11:21,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-06 01:11:21,160 INFO L225 Difference]: With dead ends: 102 [2020-10-06 01:11:21,160 INFO L226 Difference]: Without dead ends: 102 [2020-10-06 01:11:21,160 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-10-06 01:11:21,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2020-10-06 01:11:21,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 101. [2020-10-06 01:11:21,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 101 states. [2020-10-06 01:11:21,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 212 transitions. [2020-10-06 01:11:21,165 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 212 transitions. Word has length 9 [2020-10-06 01:11:21,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-06 01:11:21,166 INFO L479 AbstractCegarLoop]: Abstraction has 101 states and 212 transitions. [2020-10-06 01:11:21,166 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-06 01:11:21,166 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 212 transitions. [2020-10-06 01:11:21,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-06 01:11:21,167 INFO L414 BasicCegarLoop]: Found error trace [2020-10-06 01:11:21,167 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-06 01:11:21,167 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-06 01:11:21,167 INFO L427 AbstractCegarLoop]: === Iteration 9 === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-06 01:11:21,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-06 01:11:21,168 INFO L82 PathProgramCache]: Analyzing trace with hash 1186366444, now seen corresponding path program 1 times [2020-10-06 01:11:21,169 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-06 01:11:21,170 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [818228840] [2020-10-06 01:11:21,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-06 01:11:21,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-06 01:11:21,233 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-06 01:11:21,234 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [818228840] [2020-10-06 01:11:21,234 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-06 01:11:21,234 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-06 01:11:21,234 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1908074018] [2020-10-06 01:11:21,235 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-06 01:11:21,236 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-06 01:11:21,238 INFO L258 McrAutomatonBuilder]: Finished intersection with 18 states and 25 transitions. [2020-10-06 01:11:21,239 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-06 01:11:21,247 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-06 01:11:21,249 INFO L603 QuantifierPusher]: Distributing 3 disjuncts over 4 conjuncts [2020-10-06 01:11:21,254 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-06 01:11:21,259 INFO L603 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-10-06 01:11:21,265 INFO L603 QuantifierPusher]: Distributing 4 disjuncts over 4 conjuncts [2020-10-06 01:11:21,297 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-06 01:11:21,298 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-06 01:11:21,298 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-06 01:11:21,298 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-06 01:11:21,298 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-06 01:11:21,299 INFO L87 Difference]: Start difference. First operand 101 states and 212 transitions. Second operand 5 states. [2020-10-06 01:11:21,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-06 01:11:21,372 INFO L93 Difference]: Finished difference Result 112 states and 233 transitions. [2020-10-06 01:11:21,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-06 01:11:21,373 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2020-10-06 01:11:21,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-06 01:11:21,375 INFO L225 Difference]: With dead ends: 112 [2020-10-06 01:11:21,375 INFO L226 Difference]: Without dead ends: 112 [2020-10-06 01:11:21,375 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-06 01:11:21,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2020-10-06 01:11:21,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 106. [2020-10-06 01:11:21,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 106 states. [2020-10-06 01:11:21,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 220 transitions. [2020-10-06 01:11:21,379 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 220 transitions. Word has length 10 [2020-10-06 01:11:21,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-06 01:11:21,380 INFO L479 AbstractCegarLoop]: Abstraction has 106 states and 220 transitions. [2020-10-06 01:11:21,380 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-06 01:11:21,380 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 220 transitions. [2020-10-06 01:11:21,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-06 01:11:21,381 INFO L414 BasicCegarLoop]: Found error trace [2020-10-06 01:11:21,381 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-06 01:11:21,381 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-06 01:11:21,381 INFO L427 AbstractCegarLoop]: === Iteration 10 === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-06 01:11:21,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-06 01:11:21,382 INFO L82 PathProgramCache]: Analyzing trace with hash 1185068164, now seen corresponding path program 2 times [2020-10-06 01:11:21,383 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-06 01:11:21,383 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [138246908] [2020-10-06 01:11:21,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-06 01:11:21,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-06 01:11:21,504 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-06 01:11:21,505 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [138246908] [2020-10-06 01:11:21,505 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-06 01:11:21,505 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-06 01:11:21,506 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1757805752] [2020-10-06 01:11:21,506 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-06 01:11:21,507 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-06 01:11:21,510 INFO L258 McrAutomatonBuilder]: Finished intersection with 22 states and 34 transitions. [2020-10-06 01:11:21,510 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-06 01:11:21,574 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [3425#(and (= ~x~0 1) (= 0 ~x$r_buff0_thd0~0) (= 0 ~x$w_buff0~0))] [2020-10-06 01:11:21,574 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-06 01:11:21,574 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-06 01:11:21,574 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-06 01:11:21,575 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-06 01:11:21,575 INFO L87 Difference]: Start difference. First operand 106 states and 220 transitions. Second operand 7 states. [2020-10-06 01:11:21,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-06 01:11:21,668 INFO L93 Difference]: Finished difference Result 115 states and 236 transitions. [2020-10-06 01:11:21,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-06 01:11:21,672 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 10 [2020-10-06 01:11:21,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-06 01:11:21,673 INFO L225 Difference]: With dead ends: 115 [2020-10-06 01:11:21,673 INFO L226 Difference]: Without dead ends: 115 [2020-10-06 01:11:21,674 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-06 01:11:21,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2020-10-06 01:11:21,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 109. [2020-10-06 01:11:21,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2020-10-06 01:11:21,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 227 transitions. [2020-10-06 01:11:21,678 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 227 transitions. Word has length 10 [2020-10-06 01:11:21,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-06 01:11:21,679 INFO L479 AbstractCegarLoop]: Abstraction has 109 states and 227 transitions. [2020-10-06 01:11:21,679 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-06 01:11:21,679 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 227 transitions. [2020-10-06 01:11:21,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-06 01:11:21,680 INFO L414 BasicCegarLoop]: Found error trace [2020-10-06 01:11:21,680 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-06 01:11:21,680 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-06 01:11:21,680 INFO L427 AbstractCegarLoop]: === Iteration 11 === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-06 01:11:21,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-06 01:11:21,681 INFO L82 PathProgramCache]: Analyzing trace with hash 1163291284, now seen corresponding path program 3 times [2020-10-06 01:11:21,685 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-06 01:11:21,685 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1503040163] [2020-10-06 01:11:21,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-06 01:11:21,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-06 01:11:21,884 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-06 01:11:21,884 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1503040163] [2020-10-06 01:11:21,884 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-06 01:11:21,885 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-06 01:11:21,885 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [863961998] [2020-10-06 01:11:21,885 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-06 01:11:21,887 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-06 01:11:21,889 INFO L258 McrAutomatonBuilder]: Finished intersection with 17 states and 22 transitions. [2020-10-06 01:11:21,889 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-06 01:11:21,920 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-06 01:11:21,921 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-06 01:11:21,921 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-06 01:11:21,921 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-06 01:11:21,921 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-06 01:11:21,922 INFO L87 Difference]: Start difference. First operand 109 states and 227 transitions. Second operand 6 states. [2020-10-06 01:11:22,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-06 01:11:22,043 INFO L93 Difference]: Finished difference Result 113 states and 229 transitions. [2020-10-06 01:11:22,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-06 01:11:22,045 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 10 [2020-10-06 01:11:22,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-06 01:11:22,046 INFO L225 Difference]: With dead ends: 113 [2020-10-06 01:11:22,046 INFO L226 Difference]: Without dead ends: 97 [2020-10-06 01:11:22,047 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2020-10-06 01:11:22,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2020-10-06 01:11:22,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 95. [2020-10-06 01:11:22,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 95 states. [2020-10-06 01:11:22,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 195 transitions. [2020-10-06 01:11:22,050 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 195 transitions. Word has length 10 [2020-10-06 01:11:22,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-06 01:11:22,051 INFO L479 AbstractCegarLoop]: Abstraction has 95 states and 195 transitions. [2020-10-06 01:11:22,051 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-06 01:11:22,051 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 195 transitions. [2020-10-06 01:11:22,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-06 01:11:22,052 INFO L414 BasicCegarLoop]: Found error trace [2020-10-06 01:11:22,052 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-06 01:11:22,052 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-06 01:11:22,052 INFO L427 AbstractCegarLoop]: === Iteration 12 === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-06 01:11:22,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-06 01:11:22,053 INFO L82 PathProgramCache]: Analyzing trace with hash -1928407251, now seen corresponding path program 1 times [2020-10-06 01:11:22,056 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-06 01:11:22,057 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [52559348] [2020-10-06 01:11:22,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-06 01:11:22,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-06 01:11:22,108 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-06 01:11:22,109 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [52559348] [2020-10-06 01:11:22,109 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-06 01:11:22,109 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-06 01:11:22,109 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1445818896] [2020-10-06 01:11:22,110 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-06 01:11:22,111 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-06 01:11:22,114 INFO L258 McrAutomatonBuilder]: Finished intersection with 25 states and 38 transitions. [2020-10-06 01:11:22,115 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-06 01:11:22,130 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-06 01:11:22,139 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-06 01:11:22,157 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-06 01:11:22,165 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-06 01:11:22,172 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-06 01:11:22,175 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [4076#(not (= 2 ~__unbuffered_cnt~0))] [2020-10-06 01:11:22,175 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-06 01:11:22,175 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-06 01:11:22,176 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-06 01:11:22,176 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-06 01:11:22,176 INFO L87 Difference]: Start difference. First operand 95 states and 195 transitions. Second operand 5 states. [2020-10-06 01:11:22,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-06 01:11:22,216 INFO L93 Difference]: Finished difference Result 58 states and 107 transitions. [2020-10-06 01:11:22,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-06 01:11:22,217 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2020-10-06 01:11:22,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-06 01:11:22,217 INFO L225 Difference]: With dead ends: 58 [2020-10-06 01:11:22,217 INFO L226 Difference]: Without dead ends: 0 [2020-10-06 01:11:22,218 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-06 01:11:22,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-06 01:11:22,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-06 01:11:22,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-06 01:11:22,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-06 01:11:22,219 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2020-10-06 01:11:22,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-06 01:11:22,219 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-06 01:11:22,219 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-06 01:11:22,219 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-06 01:11:22,219 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-06 01:11:22,220 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-06 01:11:22,223 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.10 01:11:22 BasicIcfg [2020-10-06 01:11:22,223 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-06 01:11:22,225 INFO L168 Benchmark]: Toolchain (without parser) took 12370.78 ms. Allocated memory was 146.3 MB in the beginning and 356.0 MB in the end (delta: 209.7 MB). Free memory was 101.0 MB in the beginning and 252.1 MB in the end (delta: -151.0 MB). Peak memory consumption was 58.7 MB. Max. memory is 7.1 GB. [2020-10-06 01:11:22,226 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 146.3 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2020-10-06 01:11:22,227 INFO L168 Benchmark]: CACSL2BoogieTranslator took 765.47 ms. Allocated memory was 146.3 MB in the beginning and 201.9 MB in the end (delta: 55.6 MB). Free memory was 100.8 MB in the beginning and 153.8 MB in the end (delta: -53.0 MB). Peak memory consumption was 20.7 MB. Max. memory is 7.1 GB. [2020-10-06 01:11:22,227 INFO L168 Benchmark]: Boogie Procedure Inliner took 64.00 ms. Allocated memory is still 201.9 MB. Free memory was 153.8 MB in the beginning and 151.1 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. [2020-10-06 01:11:22,228 INFO L168 Benchmark]: Boogie Preprocessor took 37.62 ms. Allocated memory is still 201.9 MB. Free memory was 151.1 MB in the beginning and 149.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-10-06 01:11:22,229 INFO L168 Benchmark]: RCFGBuilder took 1928.63 ms. Allocated memory was 201.9 MB in the beginning and 248.5 MB in the end (delta: 46.7 MB). Free memory was 148.4 MB in the beginning and 199.4 MB in the end (delta: -50.9 MB). Peak memory consumption was 102.9 MB. Max. memory is 7.1 GB. [2020-10-06 01:11:22,230 INFO L168 Benchmark]: TraceAbstraction took 9570.04 ms. Allocated memory was 248.5 MB in the beginning and 356.0 MB in the end (delta: 107.5 MB). Free memory was 197.5 MB in the beginning and 252.1 MB in the end (delta: -54.5 MB). Peak memory consumption was 53.0 MB. Max. memory is 7.1 GB. [2020-10-06 01:11:22,234 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 146.3 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 765.47 ms. Allocated memory was 146.3 MB in the beginning and 201.9 MB in the end (delta: 55.6 MB). Free memory was 100.8 MB in the beginning and 153.8 MB in the end (delta: -53.0 MB). Peak memory consumption was 20.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 64.00 ms. Allocated memory is still 201.9 MB. Free memory was 153.8 MB in the beginning and 151.1 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 37.62 ms. Allocated memory is still 201.9 MB. Free memory was 151.1 MB in the beginning and 149.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1928.63 ms. Allocated memory was 201.9 MB in the beginning and 248.5 MB in the end (delta: 46.7 MB). Free memory was 148.4 MB in the beginning and 199.4 MB in the end (delta: -50.9 MB). Peak memory consumption was 102.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 9570.04 ms. Allocated memory was 248.5 MB in the beginning and 356.0 MB in the end (delta: 107.5 MB). Free memory was 197.5 MB in the beginning and 252.1 MB in the end (delta: -54.5 MB). Peak memory consumption was 53.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 6.3s, 79 ProgramPointsBefore, 26 ProgramPointsAfterwards, 74 TransitionsBefore, 19 TransitionsAfterwards, 888 CoEnabledTransitionPairs, 7 FixpointIterations, 27 TrivialSequentialCompositions, 31 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 5 ConcurrentYvCompositions, 2 ChoiceCompositions, 460 VarBasedMoverChecksPositive, 29 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 2209 CheckedPairsTotal, 63 TotalNumberOfCompositions - PositiveResult [Line: 7]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - 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 2 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 73 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 9.4s, OverallIterations: 12, TraceHistogramMax: 1, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 6.4s, HoareTripleCheckerStatistics: 175 SDtfs, 104 SDslu, 189 SDs, 0 SdLazy, 215 SolverSat, 63 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 96 GetRequests, 57 SyntacticMatches, 2 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=162occurred 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, 12 MinimizatonAttempts, 27 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 105 NumberOfCodeBlocks, 105 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 93 ConstructedInterpolants, 0 QuantifiedInterpolants, 7025 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 12 InterpolantComputations, 12 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...