/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_rmo.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c7e336b [2020-10-06 01:11:15,551 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-06 01:11:15,554 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-06 01:11:15,590 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-06 01:11:15,591 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-06 01:11:15,602 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-06 01:11:15,604 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-06 01:11:15,606 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-06 01:11:15,613 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-06 01:11:15,614 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-06 01:11:15,615 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-06 01:11:15,616 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-06 01:11:15,616 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-06 01:11:15,617 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-06 01:11:15,618 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-06 01:11:15,619 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-06 01:11:15,620 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-06 01:11:15,621 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-06 01:11:15,622 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-06 01:11:15,624 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-06 01:11:15,625 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-06 01:11:15,626 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-06 01:11:15,627 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-06 01:11:15,628 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-06 01:11:15,630 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-06 01:11:15,631 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-06 01:11:15,631 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-06 01:11:15,632 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-06 01:11:15,632 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-06 01:11:15,633 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-06 01:11:15,633 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-06 01:11:15,634 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-06 01:11:15,635 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-06 01:11:15,635 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-06 01:11:15,636 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-06 01:11:15,636 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-06 01:11:15,637 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-06 01:11:15,637 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-06 01:11:15,637 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-06 01:11:15,638 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-06 01:11:15,639 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-06 01:11:15,640 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 01:11:15,661 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-06 01:11:15,661 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-06 01:11:15,662 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-06 01:11:15,662 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-06 01:11:15,663 INFO L138 SettingsManager]: * Use SBE=true [2020-10-06 01:11:15,663 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-06 01:11:15,663 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-06 01:11:15,663 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-06 01:11:15,664 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-06 01:11:15,664 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-06 01:11:15,664 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-06 01:11:15,664 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-06 01:11:15,664 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-06 01:11:15,664 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-06 01:11:15,665 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-06 01:11:15,665 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-06 01:11:15,665 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-06 01:11:15,665 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-06 01:11:15,665 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-06 01:11:15,666 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-06 01:11:15,666 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-06 01:11:15,666 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-06 01:11:15,666 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-06 01:11:15,666 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-10-06 01:11:15,667 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-06 01:11:15,667 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-06 01:11:15,667 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-06 01:11:15,667 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2020-10-06 01:11:15,667 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-10-06 01:11:15,668 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-06 01:11:15,668 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2020-10-06 01:11:15,957 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-06 01:11:15,968 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-06 01:11:15,970 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-06 01:11:15,972 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-06 01:11:15,972 INFO L275 PluginConnector]: CDTParser initialized [2020-10-06 01:11:15,973 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe029_rmo.opt.i [2020-10-06 01:11:16,045 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/36baa80a1/90213a2f85264c119bc6aee2209f8139/FLAG3a07cba8a [2020-10-06 01:11:16,601 INFO L306 CDTParser]: Found 1 translation units. [2020-10-06 01:11:16,602 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe029_rmo.opt.i [2020-10-06 01:11:16,616 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/36baa80a1/90213a2f85264c119bc6aee2209f8139/FLAG3a07cba8a [2020-10-06 01:11:16,832 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/36baa80a1/90213a2f85264c119bc6aee2209f8139 [2020-10-06 01:11:16,841 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-06 01:11:16,843 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-06 01:11:16,844 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-06 01:11:16,844 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-06 01:11:16,848 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-06 01:11:16,849 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.10 01:11:16" (1/1) ... [2020-10-06 01:11:16,852 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@67e464cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:11:16, skipping insertion in model container [2020-10-06 01:11:16,852 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.10 01:11:16" (1/1) ... [2020-10-06 01:11:16,860 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-06 01:11:16,901 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-06 01:11:17,341 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-06 01:11:17,353 INFO L203 MainTranslator]: Completed pre-run [2020-10-06 01:11:17,460 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-06 01:11:17,535 INFO L208 MainTranslator]: Completed translation [2020-10-06 01:11:17,535 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:11:17 WrapperNode [2020-10-06 01:11:17,535 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-06 01:11:17,536 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-06 01:11:17,536 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-06 01:11:17,537 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-06 01:11:17,545 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:11:17" (1/1) ... [2020-10-06 01:11:17,564 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:11:17" (1/1) ... [2020-10-06 01:11:17,600 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-06 01:11:17,601 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-06 01:11:17,601 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-06 01:11:17,601 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-06 01:11:17,611 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:11:17" (1/1) ... [2020-10-06 01:11:17,611 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:11:17" (1/1) ... [2020-10-06 01:11:17,616 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:11:17" (1/1) ... [2020-10-06 01:11:17,616 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:11:17" (1/1) ... [2020-10-06 01:11:17,626 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:11:17" (1/1) ... [2020-10-06 01:11:17,636 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:11:17" (1/1) ... [2020-10-06 01:11:17,640 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:11:17" (1/1) ... [2020-10-06 01:11:17,646 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-06 01:11:17,647 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-06 01:11:17,647 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-06 01:11:17,647 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-06 01:11:17,648 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:11:17" (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 01:11:17,700 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-06 01:11:17,700 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-06 01:11:17,700 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-06 01:11:17,700 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-06 01:11:17,700 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-06 01:11:17,701 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-06 01:11:17,701 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-06 01:11:17,701 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-06 01:11:17,701 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-06 01:11:17,701 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-06 01:11:17,701 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-06 01:11:17,703 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 01:11:19,528 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-06 01:11:19,529 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-10-06 01:11:19,531 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.10 01:11:19 BoogieIcfgContainer [2020-10-06 01:11:19,531 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-06 01:11:19,533 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-06 01:11:19,533 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-06 01:11:19,536 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-06 01:11:19,537 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.10 01:11:16" (1/3) ... [2020-10-06 01:11:19,538 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@719e4000 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.10 01:11:19, skipping insertion in model container [2020-10-06 01:11:19,538 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:11:17" (2/3) ... [2020-10-06 01:11:19,538 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@719e4000 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.10 01:11:19, skipping insertion in model container [2020-10-06 01:11:19,538 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.10 01:11:19" (3/3) ... [2020-10-06 01:11:19,540 INFO L109 eAbstractionObserver]: Analyzing ICFG safe029_rmo.opt.i [2020-10-06 01:11:19,551 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-06 01:11:19,552 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-06 01:11:19,560 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-10-06 01:11:19,561 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-06 01:11:19,590 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:11:19,590 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:11:19,590 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:11:19,591 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:11:19,591 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:11:19,592 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:11:19,592 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:11:19,592 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:11:19,592 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:11:19,592 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:11:19,593 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:11:19,593 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:11:19,594 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:11:19,594 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:11:19,595 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:11:19,595 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:11:19,595 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:11:19,595 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:11:19,595 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:11:19,596 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:11:19,596 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:11:19,596 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:11:19,596 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:11:19,597 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:11:19,597 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:11:19,597 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:11:19,597 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:11:19,597 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:11:19,598 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:11:19,598 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:11:19,602 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:11:19,603 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:11:19,603 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:11:19,603 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:11:19,603 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:11:19,603 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:11:19,604 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:11:19,604 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:11:19,604 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:11:19,604 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:11:19,607 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:11:19,607 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:11:19,607 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:11:19,607 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:11:19,608 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:11:19,608 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:11:19,608 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:11:19,608 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:11:19,608 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:11:19,609 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:11:19,609 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:11:19,609 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:11:19,628 INFO L251 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-06 01:11:19,650 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-06 01:11:19,651 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-06 01:11:19,651 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-06 01:11:19,651 INFO L378 AbstractCegarLoop]: Backedges is MCR [2020-10-06 01:11:19,651 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-06 01:11:19,651 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-06 01:11:19,652 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-06 01:11:19,652 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-06 01:11:19,667 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 79 places, 74 transitions, 158 flow [2020-10-06 01:11:19,670 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 79 places, 74 transitions, 158 flow [2020-10-06 01:11:19,711 INFO L129 PetriNetUnfolder]: 2/72 cut-off events. [2020-10-06 01:11:19,711 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-06 01:11:19,716 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 01:11:19,718 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 79 places, 74 transitions, 158 flow [2020-10-06 01:11:19,737 INFO L129 PetriNetUnfolder]: 2/72 cut-off events. [2020-10-06 01:11:19,738 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-06 01:11:19,739 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 01:11:19,740 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 888 [2020-10-06 01:11:19,742 INFO L182 etLargeBlockEncoding]: Variable Check. [2020-10-06 01:11:20,342 WARN L193 SmtUtils]: Spent 332.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 58 [2020-10-06 01:11:21,899 WARN L193 SmtUtils]: Spent 1.18 s on a formula simplification. DAG size of input: 224 DAG size of output: 184 [2020-10-06 01:11:21,928 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 5, 3, 2, 2, 1] term [2020-10-06 01:11:21,929 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-06 01:11:21,932 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 3, 2, 1] term [2020-10-06 01:11:21,932 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-06 01:11:22,609 WARN L193 SmtUtils]: Spent 662.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 119 [2020-10-06 01:11:23,616 WARN L193 SmtUtils]: Spent 700.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 115 [2020-10-06 01:11:23,955 WARN L193 SmtUtils]: Spent 335.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2020-10-06 01:11:24,643 WARN L193 SmtUtils]: Spent 686.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 106 [2020-10-06 01:11:24,906 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-10-06 01:11:25,454 WARN L193 SmtUtils]: Spent 315.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-06 01:11:25,768 WARN L193 SmtUtils]: Spent 311.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-06 01:11:26,218 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 77 [2020-10-06 01:11:26,325 INFO L206 etLargeBlockEncoding]: Checked pairs total: 2209 [2020-10-06 01:11:26,325 INFO L214 etLargeBlockEncoding]: Total number of compositions: 63 [2020-10-06 01:11:26,329 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 26 places, 19 transitions, 48 flow [2020-10-06 01:11:26,346 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 162 states. [2020-10-06 01:11:26,349 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states. [2020-10-06 01:11:26,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-10-06 01:11:26,356 INFO L414 BasicCegarLoop]: Found error trace [2020-10-06 01:11:26,357 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-10-06 01:11:26,358 INFO L427 AbstractCegarLoop]: === Iteration 1 === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-06 01:11:26,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-06 01:11:26,364 INFO L82 PathProgramCache]: Analyzing trace with hash 859717262, now seen corresponding path program 1 times [2020-10-06 01:11:26,392 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-06 01:11:26,393 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1588910229] [2020-10-06 01:11:26,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-06 01:11:26,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-06 01:11:26,639 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 01:11:26,640 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1588910229] [2020-10-06 01:11:26,641 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-06 01:11:26,641 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-06 01:11:26,642 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [903219462] [2020-10-06 01:11:26,645 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-06 01:11:26,655 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-06 01:11:26,672 INFO L258 McrAutomatonBuilder]: Finished intersection with 6 states and 5 transitions. [2020-10-06 01:11:26,672 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-06 01:11:26,680 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-06 01:11:26,681 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-06 01:11:26,681 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-06 01:11:26,697 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-06 01:11:26,698 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-06 01:11:26,700 INFO L87 Difference]: Start difference. First operand 162 states. Second operand 3 states. [2020-10-06 01:11:26,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-06 01:11:26,773 INFO L93 Difference]: Finished difference Result 137 states and 320 transitions. [2020-10-06 01:11:26,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-06 01:11:26,776 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2020-10-06 01:11:26,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-06 01:11:26,786 INFO L225 Difference]: With dead ends: 137 [2020-10-06 01:11:26,786 INFO L226 Difference]: Without dead ends: 112 [2020-10-06 01:11:26,787 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 01:11:26,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2020-10-06 01:11:26,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 112. [2020-10-06 01:11:26,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 112 states. [2020-10-06 01:11:26,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 255 transitions. [2020-10-06 01:11:26,840 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 255 transitions. Word has length 5 [2020-10-06 01:11:26,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-06 01:11:26,840 INFO L479 AbstractCegarLoop]: Abstraction has 112 states and 255 transitions. [2020-10-06 01:11:26,840 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-06 01:11:26,841 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 255 transitions. [2020-10-06 01:11:26,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-10-06 01:11:26,841 INFO L414 BasicCegarLoop]: Found error trace [2020-10-06 01:11:26,842 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-10-06 01:11:26,842 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-06 01:11:26,842 INFO L427 AbstractCegarLoop]: === Iteration 2 === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-06 01:11:26,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-06 01:11:26,843 INFO L82 PathProgramCache]: Analyzing trace with hash 1554625103, now seen corresponding path program 1 times [2020-10-06 01:11:26,849 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-06 01:11:26,849 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1109378834] [2020-10-06 01:11:26,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-06 01:11:26,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-06 01:11:27,008 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 01:11:27,009 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1109378834] [2020-10-06 01:11:27,009 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-06 01:11:27,009 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-06 01:11:27,010 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1367377743] [2020-10-06 01:11:27,010 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-06 01:11:27,012 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-06 01:11:27,014 INFO L258 McrAutomatonBuilder]: Finished intersection with 8 states and 7 transitions. [2020-10-06 01:11:27,015 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-06 01:11:27,015 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-06 01:11:27,019 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-06 01:11:27,019 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-06 01:11:27,019 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-06 01:11:27,019 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-06 01:11:27,020 INFO L87 Difference]: Start difference. First operand 112 states and 255 transitions. Second operand 3 states. [2020-10-06 01:11:27,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-06 01:11:27,052 INFO L93 Difference]: Finished difference Result 111 states and 252 transitions. [2020-10-06 01:11:27,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-06 01:11:27,057 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2020-10-06 01:11:27,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-06 01:11:27,060 INFO L225 Difference]: With dead ends: 111 [2020-10-06 01:11:27,060 INFO L226 Difference]: Without dead ends: 111 [2020-10-06 01:11:27,061 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 01:11:27,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2020-10-06 01:11:27,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 111. [2020-10-06 01:11:27,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 111 states. [2020-10-06 01:11:27,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 252 transitions. [2020-10-06 01:11:27,076 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 252 transitions. Word has length 7 [2020-10-06 01:11:27,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-06 01:11:27,076 INFO L479 AbstractCegarLoop]: Abstraction has 111 states and 252 transitions. [2020-10-06 01:11:27,076 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-06 01:11:27,077 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 252 transitions. [2020-10-06 01:11:27,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-06 01:11:27,077 INFO L414 BasicCegarLoop]: Found error trace [2020-10-06 01:11:27,078 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-06 01:11:27,078 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-06 01:11:27,078 INFO L427 AbstractCegarLoop]: === Iteration 3 === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-06 01:11:27,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-06 01:11:27,079 INFO L82 PathProgramCache]: Analyzing trace with hash 948719512, now seen corresponding path program 1 times [2020-10-06 01:11:27,080 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-06 01:11:27,080 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1360277110] [2020-10-06 01:11:27,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-06 01:11:27,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-06 01:11:27,163 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 01:11:27,164 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1360277110] [2020-10-06 01:11:27,164 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-06 01:11:27,164 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-06 01:11:27,165 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [2063522459] [2020-10-06 01:11:27,165 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-06 01:11:27,166 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-06 01:11:27,168 INFO L258 McrAutomatonBuilder]: Finished intersection with 10 states and 10 transitions. [2020-10-06 01:11:27,168 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-06 01:11:27,187 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-06 01:11:27,187 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-06 01:11:27,187 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-06 01:11:27,188 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-06 01:11:27,188 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-06 01:11:27,188 INFO L87 Difference]: Start difference. First operand 111 states and 252 transitions. Second operand 4 states. [2020-10-06 01:11:27,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-06 01:11:27,232 INFO L93 Difference]: Finished difference Result 110 states and 249 transitions. [2020-10-06 01:11:27,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-06 01:11:27,233 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2020-10-06 01:11:27,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-06 01:11:27,235 INFO L225 Difference]: With dead ends: 110 [2020-10-06 01:11:27,235 INFO L226 Difference]: Without dead ends: 110 [2020-10-06 01:11:27,236 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-06 01:11:27,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2020-10-06 01:11:27,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 110. [2020-10-06 01:11:27,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 110 states. [2020-10-06 01:11:27,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 249 transitions. [2020-10-06 01:11:27,246 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 249 transitions. Word has length 8 [2020-10-06 01:11:27,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-06 01:11:27,247 INFO L479 AbstractCegarLoop]: Abstraction has 110 states and 249 transitions. [2020-10-06 01:11:27,247 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-06 01:11:27,247 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 249 transitions. [2020-10-06 01:11:27,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-06 01:11:27,248 INFO L414 BasicCegarLoop]: Found error trace [2020-10-06 01:11:27,248 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-06 01:11:27,248 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-06 01:11:27,249 INFO L427 AbstractCegarLoop]: === Iteration 4 === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-06 01:11:27,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-06 01:11:27,252 INFO L82 PathProgramCache]: Analyzing trace with hash 948737399, now seen corresponding path program 1 times [2020-10-06 01:11:27,255 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-06 01:11:27,256 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [456183819] [2020-10-06 01:11:27,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-06 01:11:27,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-06 01:11:27,412 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 01:11:27,413 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [456183819] [2020-10-06 01:11:27,413 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-06 01:11:27,413 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-06 01:11:27,413 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [995272594] [2020-10-06 01:11:27,414 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-06 01:11:27,415 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-06 01:11:27,417 INFO L258 McrAutomatonBuilder]: Finished intersection with 13 states and 16 transitions. [2020-10-06 01:11:27,417 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-06 01:11:27,435 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 3, 3, 2, 3, 2, 1] term [2020-10-06 01:11:27,436 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-06 01:11:27,437 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 3, 3, 2, 1] term [2020-10-06 01:11:27,437 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-06 01:11:27,440 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-06 01:11:27,447 INFO L603 QuantifierPusher]: Distributing 3 disjuncts over 4 conjuncts [2020-10-06 01:11:27,461 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-06 01:11:27,471 INFO L603 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-10-06 01:11:27,488 INFO L603 QuantifierPusher]: Distributing 3 disjuncts over 4 conjuncts [2020-10-06 01:11:27,490 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-06 01:11:27,502 INFO L603 QuantifierPusher]: Distributing 3 disjuncts over 4 conjuncts [2020-10-06 01:11:27,533 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-06 01:11:27,533 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-06 01:11:27,534 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-06 01:11:27,534 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-06 01:11:27,534 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-06 01:11:27,534 INFO L87 Difference]: Start difference. First operand 110 states and 249 transitions. Second operand 4 states. [2020-10-06 01:11:27,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-06 01:11:27,574 INFO L93 Difference]: Finished difference Result 109 states and 246 transitions. [2020-10-06 01:11:27,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-06 01:11:27,576 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2020-10-06 01:11:27,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-06 01:11:27,577 INFO L225 Difference]: With dead ends: 109 [2020-10-06 01:11:27,577 INFO L226 Difference]: Without dead ends: 109 [2020-10-06 01:11:27,578 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 01:11:27,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2020-10-06 01:11:27,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 109. [2020-10-06 01:11:27,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2020-10-06 01:11:27,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 246 transitions. [2020-10-06 01:11:27,586 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 246 transitions. Word has length 8 [2020-10-06 01:11:27,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-06 01:11:27,587 INFO L479 AbstractCegarLoop]: Abstraction has 109 states and 246 transitions. [2020-10-06 01:11:27,587 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-06 01:11:27,587 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 246 transitions. [2020-10-06 01:11:27,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-06 01:11:27,588 INFO L414 BasicCegarLoop]: Found error trace [2020-10-06 01:11:27,588 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-06 01:11:27,588 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-06 01:11:27,589 INFO L427 AbstractCegarLoop]: === Iteration 5 === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-06 01:11:27,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-06 01:11:27,589 INFO L82 PathProgramCache]: Analyzing trace with hash -654518260, now seen corresponding path program 1 times [2020-10-06 01:11:27,590 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-06 01:11:27,591 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [287375374] [2020-10-06 01:11:27,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-06 01:11:27,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-06 01:11:27,641 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 01:11:27,641 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [287375374] [2020-10-06 01:11:27,641 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-06 01:11:27,642 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-06 01:11:27,642 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [709406506] [2020-10-06 01:11:27,642 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-06 01:11:27,643 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-06 01:11:27,645 INFO L258 McrAutomatonBuilder]: Finished intersection with 13 states and 15 transitions. [2020-10-06 01:11:27,646 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-06 01:11:27,654 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-06 01:11:27,655 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-06 01:11:27,655 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-06 01:11:27,655 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-06 01:11:27,655 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-06 01:11:27,656 INFO L87 Difference]: Start difference. First operand 109 states and 246 transitions. Second operand 3 states. [2020-10-06 01:11:27,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-06 01:11:27,667 INFO L93 Difference]: Finished difference Result 154 states and 330 transitions. [2020-10-06 01:11:27,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-06 01:11:27,669 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2020-10-06 01:11:27,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-06 01:11:27,671 INFO L225 Difference]: With dead ends: 154 [2020-10-06 01:11:27,671 INFO L226 Difference]: Without dead ends: 118 [2020-10-06 01:11:27,671 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 01:11:27,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2020-10-06 01:11:27,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 106. [2020-10-06 01:11:27,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 106 states. [2020-10-06 01:11:27,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 226 transitions. [2020-10-06 01:11:27,688 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 226 transitions. Word has length 9 [2020-10-06 01:11:27,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-06 01:11:27,689 INFO L479 AbstractCegarLoop]: Abstraction has 106 states and 226 transitions. [2020-10-06 01:11:27,689 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-06 01:11:27,689 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 226 transitions. [2020-10-06 01:11:27,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-06 01:11:27,690 INFO L414 BasicCegarLoop]: Found error trace [2020-10-06 01:11:27,690 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-06 01:11:27,690 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-06 01:11:27,690 INFO L427 AbstractCegarLoop]: === Iteration 6 === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-06 01:11:27,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-06 01:11:27,691 INFO L82 PathProgramCache]: Analyzing trace with hash -654466738, now seen corresponding path program 1 times [2020-10-06 01:11:27,692 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-06 01:11:27,693 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [967676633] [2020-10-06 01:11:27,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-06 01:11:27,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-06 01:11:27,923 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 01:11:27,924 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [967676633] [2020-10-06 01:11:27,924 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-06 01:11:27,924 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-06 01:11:27,925 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [204465112] [2020-10-06 01:11:27,925 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-06 01:11:27,926 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-06 01:11:27,929 INFO L258 McrAutomatonBuilder]: Finished intersection with 17 states and 24 transitions. [2020-10-06 01:11:27,929 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-06 01:11:27,937 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-06 01:11:27,941 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-06 01:11:27,944 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[3, 5, 3, 2, 3, 2, 1] term [2020-10-06 01:11:27,944 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-06 01:11:27,945 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-06 01:11:27,957 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-06 01:11:27,959 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-06 01:11:27,960 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-06 01:11:28,081 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [2147#(or (and (<= ~x$r_buff0_thd0~0 (* 256 (div ~x$r_buff0_thd0~0 256))) (<= ~x~0 0) (< 0 (+ (div ~x$r_buff0_thd0~0 256) 1)) (< 0 (+ (div ~x$w_buff0_used~0 256) 1))) (not (= (mod ~x$w_buff0_used~0 256) 0)))] [2020-10-06 01:11:28,082 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-06 01:11:28,082 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-06 01:11:28,082 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-06 01:11:28,083 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-06 01:11:28,083 INFO L87 Difference]: Start difference. First operand 106 states and 226 transitions. Second operand 6 states. [2020-10-06 01:11:28,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-06 01:11:28,252 INFO L93 Difference]: Finished difference Result 119 states and 245 transitions. [2020-10-06 01:11:28,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-06 01:11:28,254 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 9 [2020-10-06 01:11:28,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-06 01:11:28,256 INFO L225 Difference]: With dead ends: 119 [2020-10-06 01:11:28,257 INFO L226 Difference]: Without dead ends: 119 [2020-10-06 01:11:28,257 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-10-06 01:11:28,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2020-10-06 01:11:28,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 104. [2020-10-06 01:11:28,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 104 states. [2020-10-06 01:11:28,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 220 transitions. [2020-10-06 01:11:28,264 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 220 transitions. Word has length 9 [2020-10-06 01:11:28,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-06 01:11:28,265 INFO L479 AbstractCegarLoop]: Abstraction has 104 states and 220 transitions. [2020-10-06 01:11:28,265 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-06 01:11:28,265 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 220 transitions. [2020-10-06 01:11:28,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-06 01:11:28,266 INFO L414 BasicCegarLoop]: Found error trace [2020-10-06 01:11:28,266 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-06 01:11:28,266 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-06 01:11:28,267 INFO L427 AbstractCegarLoop]: === Iteration 7 === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-06 01:11:28,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-06 01:11:28,267 INFO L82 PathProgramCache]: Analyzing trace with hash -653912861, now seen corresponding path program 1 times [2020-10-06 01:11:28,276 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-06 01:11:28,276 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1023249940] [2020-10-06 01:11:28,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-06 01:11:28,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-06 01:11:28,377 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 01:11:28,378 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1023249940] [2020-10-06 01:11:28,378 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-06 01:11:28,378 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-06 01:11:28,379 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [77574835] [2020-10-06 01:11:28,379 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-06 01:11:28,380 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-06 01:11:28,382 INFO L258 McrAutomatonBuilder]: Finished intersection with 14 states and 17 transitions. [2020-10-06 01:11:28,382 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-06 01:11:28,392 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-06 01:11:28,414 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-06 01:11:28,415 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-06 01:11:28,415 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-06 01:11:28,415 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-06 01:11:28,416 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-06 01:11:28,416 INFO L87 Difference]: Start difference. First operand 104 states and 220 transitions. Second operand 4 states. [2020-10-06 01:11:28,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-06 01:11:28,456 INFO L93 Difference]: Finished difference Result 105 states and 222 transitions. [2020-10-06 01:11:28,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-06 01:11:28,458 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-10-06 01:11:28,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-06 01:11:28,459 INFO L225 Difference]: With dead ends: 105 [2020-10-06 01:11:28,459 INFO L226 Difference]: Without dead ends: 105 [2020-10-06 01:11:28,460 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 01:11:28,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2020-10-06 01:11:28,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 105. [2020-10-06 01:11:28,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 105 states. [2020-10-06 01:11:28,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 222 transitions. [2020-10-06 01:11:28,466 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 222 transitions. Word has length 9 [2020-10-06 01:11:28,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-06 01:11:28,466 INFO L479 AbstractCegarLoop]: Abstraction has 105 states and 222 transitions. [2020-10-06 01:11:28,467 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-06 01:11:28,467 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 222 transitions. [2020-10-06 01:11:28,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-06 01:11:28,468 INFO L414 BasicCegarLoop]: Found error trace [2020-10-06 01:11:28,468 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-06 01:11:28,468 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-06 01:11:28,468 INFO L427 AbstractCegarLoop]: === Iteration 8 === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-06 01:11:28,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-06 01:11:28,469 INFO L82 PathProgramCache]: Analyzing trace with hash -655211141, now seen corresponding path program 2 times [2020-10-06 01:11:28,473 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-06 01:11:28,473 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [44973045] [2020-10-06 01:11:28,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-06 01:11:28,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-06 01:11:28,570 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 01:11:28,572 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [44973045] [2020-10-06 01:11:28,572 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-06 01:11:28,572 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-06 01:11:28,572 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [14397718] [2020-10-06 01:11:28,573 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-06 01:11:28,574 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-06 01:11:28,578 INFO L258 McrAutomatonBuilder]: Finished intersection with 16 states and 21 transitions. [2020-10-06 01:11:28,578 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-06 01:11:28,609 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-06 01:11:28,609 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-06 01:11:28,609 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-06 01:11:28,610 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-06 01:11:28,610 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-10-06 01:11:28,610 INFO L87 Difference]: Start difference. First operand 105 states and 222 transitions. Second operand 5 states. [2020-10-06 01:11:28,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-06 01:11:28,672 INFO L93 Difference]: Finished difference Result 102 states and 214 transitions. [2020-10-06 01:11:28,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-06 01:11:28,673 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2020-10-06 01:11:28,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-06 01:11:28,674 INFO L225 Difference]: With dead ends: 102 [2020-10-06 01:11:28,674 INFO L226 Difference]: Without dead ends: 102 [2020-10-06 01:11:28,675 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 01:11:28,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2020-10-06 01:11:28,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 101. [2020-10-06 01:11:28,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 101 states. [2020-10-06 01:11:28,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 212 transitions. [2020-10-06 01:11:28,684 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 212 transitions. Word has length 9 [2020-10-06 01:11:28,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-06 01:11:28,688 INFO L479 AbstractCegarLoop]: Abstraction has 101 states and 212 transitions. [2020-10-06 01:11:28,688 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-06 01:11:28,689 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 212 transitions. [2020-10-06 01:11:28,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-06 01:11:28,689 INFO L414 BasicCegarLoop]: Found error trace [2020-10-06 01:11:28,690 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-06 01:11:28,690 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-06 01:11:28,691 INFO L427 AbstractCegarLoop]: === Iteration 9 === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-06 01:11:28,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-06 01:11:28,692 INFO L82 PathProgramCache]: Analyzing trace with hash 1186366444, now seen corresponding path program 1 times [2020-10-06 01:11:28,693 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-06 01:11:28,693 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [776662071] [2020-10-06 01:11:28,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-06 01:11:28,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-06 01:11:28,905 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 01:11:28,906 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [776662071] [2020-10-06 01:11:28,906 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-06 01:11:28,907 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-06 01:11:28,907 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [365998903] [2020-10-06 01:11:28,907 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-06 01:11:28,909 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-06 01:11:28,911 INFO L258 McrAutomatonBuilder]: Finished intersection with 18 states and 25 transitions. [2020-10-06 01:11:28,912 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-06 01:11:28,926 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-06 01:11:28,929 INFO L603 QuantifierPusher]: Distributing 3 disjuncts over 4 conjuncts [2020-10-06 01:11:28,941 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-06 01:11:28,947 INFO L603 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-10-06 01:11:28,955 INFO L603 QuantifierPusher]: Distributing 4 disjuncts over 4 conjuncts [2020-10-06 01:11:29,016 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [3113#(and (<= ~x$r_buff0_thd0~0 (* 256 (div ~x$r_buff0_thd0~0 256))) (<= ~x$w_buff0~0 0) (< 0 (+ (div ~x$r_buff0_thd0~0 256) 1)))] [2020-10-06 01:11:29,017 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-06 01:11:29,017 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-06 01:11:29,017 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-06 01:11:29,017 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-06 01:11:29,018 INFO L87 Difference]: Start difference. First operand 101 states and 212 transitions. Second operand 7 states. [2020-10-06 01:11:29,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-06 01:11:29,153 INFO L93 Difference]: Finished difference Result 112 states and 233 transitions. [2020-10-06 01:11:29,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-06 01:11:29,154 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 10 [2020-10-06 01:11:29,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-06 01:11:29,155 INFO L225 Difference]: With dead ends: 112 [2020-10-06 01:11:29,155 INFO L226 Difference]: Without dead ends: 112 [2020-10-06 01:11:29,156 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2020-10-06 01:11:29,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2020-10-06 01:11:29,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 106. [2020-10-06 01:11:29,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 106 states. [2020-10-06 01:11:29,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 220 transitions. [2020-10-06 01:11:29,161 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 220 transitions. Word has length 10 [2020-10-06 01:11:29,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-06 01:11:29,162 INFO L479 AbstractCegarLoop]: Abstraction has 106 states and 220 transitions. [2020-10-06 01:11:29,162 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-06 01:11:29,162 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 220 transitions. [2020-10-06 01:11:29,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-06 01:11:29,162 INFO L414 BasicCegarLoop]: Found error trace [2020-10-06 01:11:29,162 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-06 01:11:29,163 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-06 01:11:29,163 INFO L427 AbstractCegarLoop]: === Iteration 10 === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-06 01:11:29,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-06 01:11:29,163 INFO L82 PathProgramCache]: Analyzing trace with hash 1185068164, now seen corresponding path program 2 times [2020-10-06 01:11:29,170 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-06 01:11:29,171 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1876086931] [2020-10-06 01:11:29,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-06 01:11:29,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-06 01:11:29,329 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 01:11:29,329 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1876086931] [2020-10-06 01:11:29,330 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-06 01:11:29,330 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-06 01:11:29,330 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [465497059] [2020-10-06 01:11:29,330 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-06 01:11:29,332 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-06 01:11:29,335 INFO L258 McrAutomatonBuilder]: Finished intersection with 22 states and 34 transitions. [2020-10-06 01:11:29,335 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-06 01:11:29,424 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [3450#(and (= ~x~0 1) (<= ~x$w_buff0~0 0) (<= 0 ~x$r_buff0_thd0~0) (<= ~x$r_buff0_thd0~0 0))] [2020-10-06 01:11:29,424 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-06 01:11:29,424 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-06 01:11:29,425 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-06 01:11:29,425 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-06 01:11:29,425 INFO L87 Difference]: Start difference. First operand 106 states and 220 transitions. Second operand 7 states. [2020-10-06 01:11:29,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-06 01:11:29,566 INFO L93 Difference]: Finished difference Result 112 states and 230 transitions. [2020-10-06 01:11:29,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-06 01:11:29,567 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 10 [2020-10-06 01:11:29,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-06 01:11:29,568 INFO L225 Difference]: With dead ends: 112 [2020-10-06 01:11:29,568 INFO L226 Difference]: Without dead ends: 112 [2020-10-06 01:11:29,569 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2020-10-06 01:11:29,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2020-10-06 01:11:29,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 105. [2020-10-06 01:11:29,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 105 states. [2020-10-06 01:11:29,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 219 transitions. [2020-10-06 01:11:29,573 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 219 transitions. Word has length 10 [2020-10-06 01:11:29,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-06 01:11:29,574 INFO L479 AbstractCegarLoop]: Abstraction has 105 states and 219 transitions. [2020-10-06 01:11:29,574 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-06 01:11:29,574 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 219 transitions. [2020-10-06 01:11:29,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-06 01:11:29,574 INFO L414 BasicCegarLoop]: Found error trace [2020-10-06 01:11:29,575 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-06 01:11:29,575 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-06 01:11:29,575 INFO L427 AbstractCegarLoop]: === Iteration 11 === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-06 01:11:29,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-06 01:11:29,575 INFO L82 PathProgramCache]: Analyzing trace with hash -1928407251, now seen corresponding path program 1 times [2020-10-06 01:11:29,577 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-06 01:11:29,577 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [304305594] [2020-10-06 01:11:29,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-06 01:11:29,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-06 01:11:29,642 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 01:11:29,643 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [304305594] [2020-10-06 01:11:29,643 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-06 01:11:29,643 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-06 01:11:29,643 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1994118087] [2020-10-06 01:11:29,644 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-06 01:11:29,645 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-06 01:11:29,648 INFO L258 McrAutomatonBuilder]: Finished intersection with 25 states and 38 transitions. [2020-10-06 01:11:29,649 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-06 01:11:29,666 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-06 01:11:29,675 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-06 01:11:29,684 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-06 01:11:29,692 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-06 01:11:29,705 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-06 01:11:29,709 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [3781#(not (= 2 ~__unbuffered_cnt~0))] [2020-10-06 01:11:29,709 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-06 01:11:29,709 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-06 01:11:29,709 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-06 01:11:29,710 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-06 01:11:29,710 INFO L87 Difference]: Start difference. First operand 105 states and 219 transitions. Second operand 5 states. [2020-10-06 01:11:29,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-06 01:11:29,750 INFO L93 Difference]: Finished difference Result 66 states and 125 transitions. [2020-10-06 01:11:29,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-06 01:11:29,751 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2020-10-06 01:11:29,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-06 01:11:29,751 INFO L225 Difference]: With dead ends: 66 [2020-10-06 01:11:29,751 INFO L226 Difference]: Without dead ends: 0 [2020-10-06 01:11:29,751 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 01:11:29,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-06 01:11:29,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-06 01:11:29,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-06 01:11:29,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-06 01:11:29,752 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2020-10-06 01:11:29,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-06 01:11:29,753 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-06 01:11:29,753 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-06 01:11:29,753 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-06 01:11:29,753 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-06 01:11:29,753 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-06 01:11:29,757 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.10 01:11:29 BasicIcfg [2020-10-06 01:11:29,758 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-06 01:11:29,759 INFO L168 Benchmark]: Toolchain (without parser) took 12916.48 ms. Allocated memory was 140.5 MB in the beginning and 347.6 MB in the end (delta: 207.1 MB). Free memory was 101.6 MB in the beginning and 185.3 MB in the end (delta: -83.7 MB). Peak memory consumption was 123.4 MB. Max. memory is 7.1 GB. [2020-10-06 01:11:29,760 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 140.5 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-10-06 01:11:29,761 INFO L168 Benchmark]: CACSL2BoogieTranslator took 691.78 ms. Allocated memory was 140.5 MB in the beginning and 203.9 MB in the end (delta: 63.4 MB). Free memory was 101.4 MB in the beginning and 158.4 MB in the end (delta: -57.0 MB). Peak memory consumption was 24.6 MB. Max. memory is 7.1 GB. [2020-10-06 01:11:29,762 INFO L168 Benchmark]: Boogie Procedure Inliner took 64.26 ms. Allocated memory is still 203.9 MB. Free memory was 158.4 MB in the beginning and 155.1 MB in the end (delta: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 7.1 GB. [2020-10-06 01:11:29,763 INFO L168 Benchmark]: Boogie Preprocessor took 45.44 ms. Allocated memory is still 203.9 MB. Free memory was 155.1 MB in the beginning and 153.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-10-06 01:11:29,764 INFO L168 Benchmark]: RCFGBuilder took 1885.11 ms. Allocated memory was 203.9 MB in the beginning and 248.5 MB in the end (delta: 44.6 MB). Free memory was 153.1 MB in the beginning and 198.1 MB in the end (delta: -44.9 MB). Peak memory consumption was 104.8 MB. Max. memory is 7.1 GB. [2020-10-06 01:11:29,765 INFO L168 Benchmark]: TraceAbstraction took 10224.87 ms. Allocated memory was 248.5 MB in the beginning and 347.6 MB in the end (delta: 99.1 MB). Free memory was 198.1 MB in the beginning and 185.3 MB in the end (delta: 12.8 MB). Peak memory consumption was 111.8 MB. Max. memory is 7.1 GB. [2020-10-06 01:11:29,768 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 140.5 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 691.78 ms. Allocated memory was 140.5 MB in the beginning and 203.9 MB in the end (delta: 63.4 MB). Free memory was 101.4 MB in the beginning and 158.4 MB in the end (delta: -57.0 MB). Peak memory consumption was 24.6 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 64.26 ms. Allocated memory is still 203.9 MB. Free memory was 158.4 MB in the beginning and 155.1 MB in the end (delta: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 45.44 ms. Allocated memory is still 203.9 MB. Free memory was 155.1 MB in the beginning and 153.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1885.11 ms. Allocated memory was 203.9 MB in the beginning and 248.5 MB in the end (delta: 44.6 MB). Free memory was 153.1 MB in the beginning and 198.1 MB in the end (delta: -44.9 MB). Peak memory consumption was 104.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 10224.87 ms. Allocated memory was 248.5 MB in the beginning and 347.6 MB in the end (delta: 99.1 MB). Free memory was 198.1 MB in the beginning and 185.3 MB in the end (delta: 12.8 MB). Peak memory consumption was 111.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 6.6s, 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: 10.1s, OverallIterations: 11, TraceHistogramMax: 1, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 6.6s, HoareTripleCheckerStatistics: 157 SDtfs, 103 SDslu, 184 SDs, 0 SdLazy, 207 SolverSat, 58 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 89 GetRequests, 45 SyntacticMatches, 5 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.8s 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, 11 MinimizatonAttempts, 41 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 95 NumberOfCodeBlocks, 95 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 84 ConstructedInterpolants, 0 QuantifiedInterpolants, 6738 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 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...