/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-SemanticLbe-McrStrategy.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe014_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-b981219 [2020-04-18 10:55:15,483 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-04-18 10:55:15,486 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-04-18 10:55:15,504 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-04-18 10:55:15,505 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-04-18 10:55:15,507 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-04-18 10:55:15,509 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-04-18 10:55:15,519 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-04-18 10:55:15,522 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-04-18 10:55:15,525 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-04-18 10:55:15,527 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-04-18 10:55:15,529 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-04-18 10:55:15,529 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-04-18 10:55:15,531 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-04-18 10:55:15,533 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-04-18 10:55:15,535 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-04-18 10:55:15,536 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-04-18 10:55:15,538 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-04-18 10:55:15,540 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-04-18 10:55:15,544 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-04-18 10:55:15,547 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-04-18 10:55:15,551 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-04-18 10:55:15,552 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-04-18 10:55:15,552 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-04-18 10:55:15,554 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-04-18 10:55:15,555 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-04-18 10:55:15,555 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-04-18 10:55:15,557 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-04-18 10:55:15,558 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-04-18 10:55:15,560 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-04-18 10:55:15,560 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-04-18 10:55:15,561 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-04-18 10:55:15,562 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-04-18 10:55:15,563 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-04-18 10:55:15,564 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-04-18 10:55:15,565 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-04-18 10:55:15,565 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-04-18 10:55:15,565 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-04-18 10:55:15,566 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-04-18 10:55:15,566 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-04-18 10:55:15,568 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-04-18 10:55:15,568 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-SemanticLbe-McrStrategy.epf [2020-04-18 10:55:15,609 INFO L113 SettingsManager]: Loading preferences was successful [2020-04-18 10:55:15,609 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-04-18 10:55:15,610 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-04-18 10:55:15,611 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-04-18 10:55:15,611 INFO L138 SettingsManager]: * Use SBE=true [2020-04-18 10:55:15,611 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-04-18 10:55:15,611 INFO L138 SettingsManager]: * sizeof long=4 [2020-04-18 10:55:15,611 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-04-18 10:55:15,612 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-04-18 10:55:15,612 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-04-18 10:55:15,612 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-04-18 10:55:15,612 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-04-18 10:55:15,612 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-04-18 10:55:15,613 INFO L138 SettingsManager]: * sizeof long double=12 [2020-04-18 10:55:15,613 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-04-18 10:55:15,613 INFO L138 SettingsManager]: * Use constant arrays=true [2020-04-18 10:55:15,613 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-04-18 10:55:15,613 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-04-18 10:55:15,614 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-04-18 10:55:15,614 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-04-18 10:55:15,614 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-04-18 10:55:15,614 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-04-18 10:55:15,614 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-04-18 10:55:15,614 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-04-18 10:55:15,615 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-04-18 10:55:15,615 INFO L138 SettingsManager]: * Trace refinement strategy=MCR [2020-04-18 10:55:15,615 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-04-18 10:55:15,615 INFO L138 SettingsManager]: * Trace refinement strategy used in MCR=CAMEL [2020-04-18 10:55:15,615 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-04-18 10:55:15,616 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-04-18 10:55:15,879 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-04-18 10:55:15,900 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-04-18 10:55:15,902 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-04-18 10:55:15,903 INFO L271 PluginConnector]: Initializing CDTParser... [2020-04-18 10:55:15,904 INFO L275 PluginConnector]: CDTParser initialized [2020-04-18 10:55:15,905 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe014_tso.opt.i [2020-04-18 10:55:15,978 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0e55fc440/625993e2af0b4f9596304add476763e9/FLAG52a2d4e37 [2020-04-18 10:55:16,484 INFO L306 CDTParser]: Found 1 translation units. [2020-04-18 10:55:16,485 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe014_tso.opt.i [2020-04-18 10:55:16,506 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0e55fc440/625993e2af0b4f9596304add476763e9/FLAG52a2d4e37 [2020-04-18 10:55:16,792 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0e55fc440/625993e2af0b4f9596304add476763e9 [2020-04-18 10:55:16,803 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-04-18 10:55:16,828 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-04-18 10:55:16,833 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-04-18 10:55:16,833 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-04-18 10:55:16,836 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-04-18 10:55:16,837 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 10:55:16" (1/1) ... [2020-04-18 10:55:16,840 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@49cdb82c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 10:55:16, skipping insertion in model container [2020-04-18 10:55:16,841 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 10:55:16" (1/1) ... [2020-04-18 10:55:16,849 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-04-18 10:55:16,913 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-04-18 10:55:17,342 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-04-18 10:55:17,355 INFO L203 MainTranslator]: Completed pre-run [2020-04-18 10:55:17,400 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-04-18 10:55:17,484 INFO L208 MainTranslator]: Completed translation [2020-04-18 10:55:17,484 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 10:55:17 WrapperNode [2020-04-18 10:55:17,484 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-04-18 10:55:17,486 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-04-18 10:55:17,486 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-04-18 10:55:17,486 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-04-18 10:55:17,496 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 10:55:17" (1/1) ... [2020-04-18 10:55:17,531 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 10:55:17" (1/1) ... [2020-04-18 10:55:17,563 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-04-18 10:55:17,564 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-04-18 10:55:17,564 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-04-18 10:55:17,564 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-04-18 10:55:17,573 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 10:55:17" (1/1) ... [2020-04-18 10:55:17,574 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 10:55:17" (1/1) ... [2020-04-18 10:55:17,581 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 10:55:17" (1/1) ... [2020-04-18 10:55:17,581 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 10:55:17" (1/1) ... [2020-04-18 10:55:17,592 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 10:55:17" (1/1) ... [2020-04-18 10:55:17,595 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 10:55:17" (1/1) ... [2020-04-18 10:55:17,601 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 10:55:17" (1/1) ... [2020-04-18 10:55:17,604 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-04-18 10:55:17,605 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-04-18 10:55:17,605 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-04-18 10:55:17,605 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-04-18 10:55:17,611 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 10:55:17" (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 [2020-04-18 10:55:17,665 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-04-18 10:55:17,665 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-04-18 10:55:17,666 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-04-18 10:55:17,666 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-04-18 10:55:17,666 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-04-18 10:55:17,667 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-04-18 10:55:17,668 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-04-18 10:55:17,669 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-04-18 10:55:17,669 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-04-18 10:55:17,670 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-04-18 10:55:17,670 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-04-18 10:55:17,670 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-04-18 10:55:17,670 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-04-18 10:55:17,672 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-04-18 10:55:18,048 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-04-18 10:55:18,048 INFO L295 CfgBuilder]: Removed 8 assume(true) statements. [2020-04-18 10:55:18,053 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 10:55:18 BoogieIcfgContainer [2020-04-18 10:55:18,053 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-04-18 10:55:18,054 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-04-18 10:55:18,055 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-04-18 10:55:18,058 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-04-18 10:55:18,058 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.04 10:55:16" (1/3) ... [2020-04-18 10:55:18,059 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60ca3af6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 10:55:18, skipping insertion in model container [2020-04-18 10:55:18,059 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 10:55:17" (2/3) ... [2020-04-18 10:55:18,059 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60ca3af6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 10:55:18, skipping insertion in model container [2020-04-18 10:55:18,060 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 10:55:18" (3/3) ... [2020-04-18 10:55:18,061 INFO L109 eAbstractionObserver]: Analyzing ICFG safe014_tso.opt.i [2020-04-18 10:55:18,072 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-04-18 10:55:18,072 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-04-18 10:55:18,080 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-04-18 10:55:18,081 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-04-18 10:55:18,106 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 10:55:18,107 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 10:55:18,107 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 10:55:18,108 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 10:55:18,108 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 10:55:18,108 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 10:55:18,109 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 10:55:18,109 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 10:55:18,109 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 10:55:18,110 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 10:55:18,110 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 10:55:18,110 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 10:55:18,111 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 10:55:18,111 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 10:55:18,111 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 10:55:18,111 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 10:55:18,112 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 10:55:18,112 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 10:55:18,116 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 10:55:18,117 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 10:55:18,117 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 10:55:18,117 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 10:55:18,124 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 10:55:18,125 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 10:55:18,125 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 10:55:18,125 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 10:55:18,128 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 10:55:18,128 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 10:55:18,128 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 10:55:18,128 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 10:55:18,145 INFO L251 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-04-18 10:55:18,165 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-04-18 10:55:18,165 INFO L376 AbstractCegarLoop]: Hoare is true [2020-04-18 10:55:18,165 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-04-18 10:55:18,166 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-04-18 10:55:18,166 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-04-18 10:55:18,166 INFO L380 AbstractCegarLoop]: Difference is false [2020-04-18 10:55:18,166 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-04-18 10:55:18,166 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-04-18 10:55:18,182 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 78 places, 70 transitions, 155 flow [2020-04-18 10:55:18,184 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 78 places, 70 transitions, 155 flow [2020-04-18 10:55:18,227 INFO L129 PetriNetUnfolder]: 2/67 cut-off events. [2020-04-18 10:55:18,228 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-04-18 10:55:18,234 INFO L80 FinitePrefix]: Finished finitePrefix Result has 77 conditions, 67 events. 2/67 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 46 event pairs, 0 based on Foata normal form. 0/64 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2020-04-18 10:55:18,237 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 78 places, 70 transitions, 155 flow [2020-04-18 10:55:18,258 INFO L129 PetriNetUnfolder]: 2/67 cut-off events. [2020-04-18 10:55:18,258 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-04-18 10:55:18,259 INFO L80 FinitePrefix]: Finished finitePrefix Result has 77 conditions, 67 events. 2/67 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 46 event pairs, 0 based on Foata normal form. 0/64 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2020-04-18 10:55:18,261 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 1260 [2020-04-18 10:55:18,262 INFO L170 etLargeBlockEncoding]: Semantic Check. [2020-04-18 10:55:19,906 WARN L192 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 49 [2020-04-18 10:55:20,101 WARN L192 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 44 [2020-04-18 10:55:20,160 INFO L206 etLargeBlockEncoding]: Checked pairs total: 2700 [2020-04-18 10:55:20,161 INFO L214 etLargeBlockEncoding]: Total number of compositions: 59 [2020-04-18 10:55:20,164 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 31 places, 22 transitions, 59 flow [2020-04-18 10:55:20,189 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 298 states. [2020-04-18 10:55:20,192 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states. [2020-04-18 10:55:20,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-04-18 10:55:20,200 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 10:55:20,200 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 10:55:20,201 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 10:55:20,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 10:55:20,207 INFO L82 PathProgramCache]: Analyzing trace with hash -1011733384, now seen corresponding path program 1 times [2020-04-18 10:55:20,215 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 10:55:20,215 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [1706641040] [2020-04-18 10:55:20,232 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 10:55:20,247 INFO L259 McrAutomatonBuilder]: Finished intersection with 9 states and 8 transitions. [2020-04-18 10:55:20,249 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states. [2020-04-18 10:55:20,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-04-18 10:55:20,250 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 10:55:20,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 10:55:20,251 INFO L82 PathProgramCache]: Analyzing trace with hash -1011733384, now seen corresponding path program 2 times [2020-04-18 10:55:20,255 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 10:55:20,255 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1506072104] [2020-04-18 10:55:20,255 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 10:55:20,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 10:55:20,496 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 10:55:20,497 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1506072104] [2020-04-18 10:55:20,498 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 10:55:20,498 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-04-18 10:55:20,500 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 10:55:20,502 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 10:55:20,507 INFO L259 McrAutomatonBuilder]: Finished intersection with 9 states and 8 transitions. [2020-04-18 10:55:20,507 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 10:55:20,514 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times. [2020-04-18 10:55:20,518 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-04-18 10:55:20,519 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-18 10:55:20,521 INFO L87 Difference]: Start difference. First operand 9 states. Second operand 3 states. [2020-04-18 10:55:20,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 10:55:20,525 INFO L93 Difference]: Finished difference Result 9 states and 8 transitions. [2020-04-18 10:55:20,525 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 8 transitions. [2020-04-18 10:55:20,526 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 10:55:20,527 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [1706641040] [2020-04-18 10:55:20,527 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 10:55:20,527 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [1] total 1 [2020-04-18 10:55:20,528 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [1706641040] [2020-04-18 10:55:20,529 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-04-18 10:55:20,530 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 10:55:20,535 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-04-18 10:55:20,536 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-18 10:55:20,536 INFO L87 Difference]: Start difference. First operand 298 states. Second operand 3 states. [2020-04-18 10:55:20,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 10:55:20,587 INFO L93 Difference]: Finished difference Result 282 states and 808 transitions. [2020-04-18 10:55:20,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-04-18 10:55:20,590 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-04-18 10:55:20,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 10:55:20,613 INFO L225 Difference]: With dead ends: 282 [2020-04-18 10:55:20,614 INFO L226 Difference]: Without dead ends: 218 [2020-04-18 10:55:20,615 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-18 10:55:20,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2020-04-18 10:55:20,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 218. [2020-04-18 10:55:20,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 218 states. [2020-04-18 10:55:20,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 600 transitions. [2020-04-18 10:55:20,707 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 600 transitions. Word has length 8 [2020-04-18 10:55:20,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 10:55:20,708 INFO L479 AbstractCegarLoop]: Abstraction has 218 states and 600 transitions. [2020-04-18 10:55:20,708 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-04-18 10:55:20,708 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 600 transitions. [2020-04-18 10:55:20,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-04-18 10:55:20,710 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 10:55:20,710 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 10:55:20,710 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 10:55:20,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 10:55:20,711 INFO L82 PathProgramCache]: Analyzing trace with hash -1035713695, now seen corresponding path program 1 times [2020-04-18 10:55:20,711 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 10:55:20,711 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [1839985508] [2020-04-18 10:55:20,712 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 10:55:20,712 INFO L259 McrAutomatonBuilder]: Finished intersection with 16 states and 21 transitions. [2020-04-18 10:55:20,713 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states. [2020-04-18 10:55:20,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-04-18 10:55:20,713 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 10:55:20,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 10:55:20,714 INFO L82 PathProgramCache]: Analyzing trace with hash -1035713695, now seen corresponding path program 2 times [2020-04-18 10:55:20,714 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 10:55:20,714 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1030032516] [2020-04-18 10:55:20,715 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 10:55:20,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 10:55:20,835 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 10:55:20,836 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1030032516] [2020-04-18 10:55:20,836 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 10:55:20,836 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-04-18 10:55:20,836 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 10:55:20,837 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 10:55:20,839 INFO L259 McrAutomatonBuilder]: Finished intersection with 15 states and 19 transitions. [2020-04-18 10:55:20,839 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 10:55:20,860 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times. [2020-04-18 10:55:20,861 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-04-18 10:55:20,861 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-04-18 10:55:20,861 INFO L87 Difference]: Start difference. First operand 16 states. Second operand 4 states. [2020-04-18 10:55:20,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 10:55:20,879 INFO L93 Difference]: Finished difference Result 16 states and 21 transitions. [2020-04-18 10:55:20,880 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 21 transitions. [2020-04-18 10:55:20,880 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 10:55:20,882 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [1839985508] [2020-04-18 10:55:20,883 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 10:55:20,883 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2] total 2 [2020-04-18 10:55:20,883 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [1839985508] [2020-04-18 10:55:20,884 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-04-18 10:55:20,884 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 10:55:20,885 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-04-18 10:55:20,885 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-04-18 10:55:20,886 INFO L87 Difference]: Start difference. First operand 218 states and 600 transitions. Second operand 4 states. [2020-04-18 10:55:20,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 10:55:20,910 INFO L93 Difference]: Finished difference Result 242 states and 634 transitions. [2020-04-18 10:55:20,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-04-18 10:55:20,912 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-04-18 10:55:20,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 10:55:20,914 INFO L225 Difference]: With dead ends: 242 [2020-04-18 10:55:20,915 INFO L226 Difference]: Without dead ends: 116 [2020-04-18 10:55:20,917 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-04-18 10:55:20,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2020-04-18 10:55:20,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 116. [2020-04-18 10:55:20,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 116 states. [2020-04-18 10:55:20,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 284 transitions. [2020-04-18 10:55:20,936 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 284 transitions. Word has length 9 [2020-04-18 10:55:20,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 10:55:20,937 INFO L479 AbstractCegarLoop]: Abstraction has 116 states and 284 transitions. [2020-04-18 10:55:20,938 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-04-18 10:55:20,938 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 284 transitions. [2020-04-18 10:55:20,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-04-18 10:55:20,941 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 10:55:20,941 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 10:55:20,942 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 10:55:20,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 10:55:20,942 INFO L82 PathProgramCache]: Analyzing trace with hash 1517475135, now seen corresponding path program 1 times [2020-04-18 10:55:20,942 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 10:55:20,942 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [281935965] [2020-04-18 10:55:20,943 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 10:55:20,944 INFO L259 McrAutomatonBuilder]: Finished intersection with 28 states and 47 transitions. [2020-04-18 10:55:20,944 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states. [2020-04-18 10:55:20,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-04-18 10:55:20,945 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 10:55:20,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 10:55:20,946 INFO L82 PathProgramCache]: Analyzing trace with hash 1111108671, now seen corresponding path program 2 times [2020-04-18 10:55:20,946 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 10:55:20,946 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [86748113] [2020-04-18 10:55:20,947 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 10:55:20,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 10:55:21,037 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 10:55:21,037 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [86748113] [2020-04-18 10:55:21,038 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 10:55:21,038 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-04-18 10:55:21,038 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 10:55:21,039 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 10:55:21,041 INFO L259 McrAutomatonBuilder]: Finished intersection with 22 states and 32 transitions. [2020-04-18 10:55:21,042 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 10:55:21,058 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 1 times. [2020-04-18 10:55:21,059 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-04-18 10:55:21,059 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-04-18 10:55:21,059 INFO L87 Difference]: Start difference. First operand 28 states. Second operand 4 states. [2020-04-18 10:55:21,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 10:55:21,071 INFO L93 Difference]: Finished difference Result 31 states and 49 transitions. [2020-04-18 10:55:21,071 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 49 transitions. [2020-04-18 10:55:21,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-04-18 10:55:21,072 INFO L105 Mcr]: ---- MCR iteration 1 ---- [2020-04-18 10:55:21,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 10:55:21,073 INFO L82 PathProgramCache]: Analyzing trace with hash 1517475135, now seen corresponding path program 3 times [2020-04-18 10:55:21,073 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 10:55:21,074 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [147405338] [2020-04-18 10:55:21,074 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 10:55:21,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 10:55:21,113 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 10:55:21,113 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [147405338] [2020-04-18 10:55:21,114 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 10:55:21,114 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-04-18 10:55:21,114 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 10:55:21,115 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 10:55:21,139 INFO L259 McrAutomatonBuilder]: Finished intersection with 15 states and 17 transitions. [2020-04-18 10:55:21,141 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 10:55:21,153 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times. [2020-04-18 10:55:21,154 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-04-18 10:55:21,154 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-04-18 10:55:21,154 INFO L87 Difference]: Start difference. First operand 31 states and 49 transitions. Second operand 4 states. [2020-04-18 10:55:21,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 10:55:21,163 INFO L93 Difference]: Finished difference Result 31 states and 49 transitions. [2020-04-18 10:55:21,163 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 49 transitions. [2020-04-18 10:55:21,164 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 10:55:21,164 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [281935965] [2020-04-18 10:55:21,165 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 10:55:21,165 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2] total 2 [2020-04-18 10:55:21,165 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [281935965] [2020-04-18 10:55:21,165 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-04-18 10:55:21,165 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 10:55:21,166 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-04-18 10:55:21,166 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-04-18 10:55:21,166 INFO L87 Difference]: Start difference. First operand 116 states and 284 transitions. Second operand 6 states. [2020-04-18 10:55:21,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 10:55:21,238 INFO L93 Difference]: Finished difference Result 164 states and 394 transitions. [2020-04-18 10:55:21,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-04-18 10:55:21,239 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 11 [2020-04-18 10:55:21,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 10:55:21,240 INFO L225 Difference]: With dead ends: 164 [2020-04-18 10:55:21,240 INFO L226 Difference]: Without dead ends: 92 [2020-04-18 10:55:21,241 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2020-04-18 10:55:21,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2020-04-18 10:55:21,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 92. [2020-04-18 10:55:21,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 92 states. [2020-04-18 10:55:21,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 214 transitions. [2020-04-18 10:55:21,247 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 214 transitions. Word has length 11 [2020-04-18 10:55:21,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 10:55:21,247 INFO L479 AbstractCegarLoop]: Abstraction has 92 states and 214 transitions. [2020-04-18 10:55:21,247 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-04-18 10:55:21,247 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 214 transitions. [2020-04-18 10:55:21,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-04-18 10:55:21,248 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 10:55:21,248 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 10:55:21,248 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 10:55:21,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 10:55:21,249 INFO L82 PathProgramCache]: Analyzing trace with hash -142823170, now seen corresponding path program 1 times [2020-04-18 10:55:21,249 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 10:55:21,249 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [1817943307] [2020-04-18 10:55:21,250 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 10:55:21,251 INFO L259 McrAutomatonBuilder]: Finished intersection with 50 states and 108 transitions. [2020-04-18 10:55:21,252 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states. [2020-04-18 10:55:21,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-04-18 10:55:21,252 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 10:55:21,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 10:55:21,253 INFO L82 PathProgramCache]: Analyzing trace with hash -52006802, now seen corresponding path program 2 times [2020-04-18 10:55:21,253 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 10:55:21,253 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [482082324] [2020-04-18 10:55:21,254 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 10:55:21,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 10:55:21,314 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 10:55:21,315 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [482082324] [2020-04-18 10:55:21,316 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 10:55:21,316 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-04-18 10:55:21,316 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 10:55:21,318 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 10:55:21,322 INFO L259 McrAutomatonBuilder]: Finished intersection with 30 states and 50 transitions. [2020-04-18 10:55:21,322 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 10:55:21,331 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 1 times. [2020-04-18 10:55:21,331 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-04-18 10:55:21,331 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-04-18 10:55:21,332 INFO L87 Difference]: Start difference. First operand 50 states. Second operand 4 states. [2020-04-18 10:55:21,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 10:55:21,344 INFO L93 Difference]: Finished difference Result 56 states and 115 transitions. [2020-04-18 10:55:21,345 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 115 transitions. [2020-04-18 10:55:21,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-04-18 10:55:21,345 INFO L105 Mcr]: ---- MCR iteration 1 ---- [2020-04-18 10:55:21,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 10:55:21,346 INFO L82 PathProgramCache]: Analyzing trace with hash -142823170, now seen corresponding path program 3 times [2020-04-18 10:55:21,347 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 10:55:21,347 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [893182619] [2020-04-18 10:55:21,347 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 10:55:21,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 10:55:21,409 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 10:55:21,410 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [893182619] [2020-04-18 10:55:21,410 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 10:55:21,411 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-04-18 10:55:21,411 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 10:55:21,412 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 10:55:21,414 INFO L259 McrAutomatonBuilder]: Finished intersection with 19 states and 24 transitions. [2020-04-18 10:55:21,415 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 10:55:21,431 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times. [2020-04-18 10:55:21,431 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-04-18 10:55:21,431 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-04-18 10:55:21,432 INFO L87 Difference]: Start difference. First operand 56 states and 115 transitions. Second operand 4 states. [2020-04-18 10:55:21,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 10:55:21,448 INFO L93 Difference]: Finished difference Result 77 states and 144 transitions. [2020-04-18 10:55:21,449 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 144 transitions. [2020-04-18 10:55:21,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-04-18 10:55:21,449 INFO L105 Mcr]: ---- MCR iteration 2 ---- [2020-04-18 10:55:21,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 10:55:21,450 INFO L82 PathProgramCache]: Analyzing trace with hash -202910876, now seen corresponding path program 4 times [2020-04-18 10:55:21,450 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 10:55:21,450 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [804007660] [2020-04-18 10:55:21,451 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 10:55:21,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 10:55:21,485 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 10:55:21,485 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [804007660] [2020-04-18 10:55:21,485 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 10:55:21,486 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-04-18 10:55:21,486 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 10:55:21,487 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 10:55:21,489 INFO L259 McrAutomatonBuilder]: Finished intersection with 16 states and 18 transitions. [2020-04-18 10:55:21,489 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 10:55:21,514 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times. [2020-04-18 10:55:21,514 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-04-18 10:55:21,514 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-04-18 10:55:21,515 INFO L87 Difference]: Start difference. First operand 77 states and 144 transitions. Second operand 4 states. [2020-04-18 10:55:21,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 10:55:21,536 INFO L93 Difference]: Finished difference Result 82 states and 148 transitions. [2020-04-18 10:55:21,536 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 148 transitions. [2020-04-18 10:55:21,537 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 10:55:21,537 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [1817943307] [2020-04-18 10:55:21,538 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 10:55:21,538 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3] total 3 [2020-04-18 10:55:21,538 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [1817943307] [2020-04-18 10:55:21,538 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-04-18 10:55:21,539 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 10:55:21,539 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-04-18 10:55:21,539 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2020-04-18 10:55:21,539 INFO L87 Difference]: Start difference. First operand 92 states and 214 transitions. Second operand 8 states. [2020-04-18 10:55:21,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 10:55:21,661 INFO L93 Difference]: Finished difference Result 122 states and 275 transitions. [2020-04-18 10:55:21,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-04-18 10:55:21,662 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 12 [2020-04-18 10:55:21,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 10:55:21,663 INFO L225 Difference]: With dead ends: 122 [2020-04-18 10:55:21,664 INFO L226 Difference]: Without dead ends: 68 [2020-04-18 10:55:21,664 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=77, Invalid=229, Unknown=0, NotChecked=0, Total=306 [2020-04-18 10:55:21,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2020-04-18 10:55:21,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2020-04-18 10:55:21,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2020-04-18 10:55:21,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 144 transitions. [2020-04-18 10:55:21,675 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 144 transitions. Word has length 12 [2020-04-18 10:55:21,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 10:55:21,676 INFO L479 AbstractCegarLoop]: Abstraction has 68 states and 144 transitions. [2020-04-18 10:55:21,676 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-04-18 10:55:21,677 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 144 transitions. [2020-04-18 10:55:21,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-04-18 10:55:21,678 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 10:55:21,678 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 10:55:21,678 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 10:55:21,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 10:55:21,679 INFO L82 PathProgramCache]: Analyzing trace with hash -1246852910, now seen corresponding path program 1 times [2020-04-18 10:55:21,679 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 10:55:21,679 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [180260151] [2020-04-18 10:55:21,680 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 10:55:21,683 INFO L259 McrAutomatonBuilder]: Finished intersection with 72 states and 169 transitions. [2020-04-18 10:55:21,685 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states. [2020-04-18 10:55:21,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-04-18 10:55:21,686 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 10:55:21,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 10:55:21,686 INFO L82 PathProgramCache]: Analyzing trace with hash -1612262128, now seen corresponding path program 2 times [2020-04-18 10:55:21,686 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 10:55:21,687 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1246708505] [2020-04-18 10:55:21,689 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 10:55:21,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 10:55:21,736 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 10:55:21,736 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1246708505] [2020-04-18 10:55:21,736 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 10:55:21,737 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-04-18 10:55:21,737 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 10:55:21,739 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 10:55:21,744 INFO L259 McrAutomatonBuilder]: Finished intersection with 36 states and 63 transitions. [2020-04-18 10:55:21,744 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 10:55:21,752 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 1 times. [2020-04-18 10:55:21,753 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-04-18 10:55:21,753 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-04-18 10:55:21,753 INFO L87 Difference]: Start difference. First operand 72 states. Second operand 4 states. [2020-04-18 10:55:21,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 10:55:21,768 INFO L93 Difference]: Finished difference Result 81 states and 181 transitions. [2020-04-18 10:55:21,768 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 181 transitions. [2020-04-18 10:55:21,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-04-18 10:55:21,768 INFO L105 Mcr]: ---- MCR iteration 1 ---- [2020-04-18 10:55:21,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 10:55:21,769 INFO L82 PathProgramCache]: Analyzing trace with hash -132602240, now seen corresponding path program 3 times [2020-04-18 10:55:21,770 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 10:55:21,770 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [886903318] [2020-04-18 10:55:21,771 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 10:55:21,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 10:55:21,830 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 10:55:21,830 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [886903318] [2020-04-18 10:55:21,831 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 10:55:21,831 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-04-18 10:55:21,831 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 10:55:21,832 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 10:55:21,838 INFO L259 McrAutomatonBuilder]: Finished intersection with 25 states and 37 transitions. [2020-04-18 10:55:21,839 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 10:55:21,853 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times. [2020-04-18 10:55:21,854 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-04-18 10:55:21,854 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-04-18 10:55:21,854 INFO L87 Difference]: Start difference. First operand 81 states and 181 transitions. Second operand 4 states. [2020-04-18 10:55:21,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 10:55:21,877 INFO L93 Difference]: Finished difference Result 123 states and 260 transitions. [2020-04-18 10:55:21,877 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 260 transitions. [2020-04-18 10:55:21,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-04-18 10:55:21,878 INFO L105 Mcr]: ---- MCR iteration 2 ---- [2020-04-18 10:55:21,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 10:55:21,879 INFO L82 PathProgramCache]: Analyzing trace with hash -1246852910, now seen corresponding path program 4 times [2020-04-18 10:55:21,879 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 10:55:21,880 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [55910240] [2020-04-18 10:55:21,880 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 10:55:21,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 10:55:21,965 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 10:55:21,966 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [55910240] [2020-04-18 10:55:21,966 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 10:55:21,966 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-04-18 10:55:21,967 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 10:55:21,969 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 10:55:21,972 INFO L259 McrAutomatonBuilder]: Finished intersection with 23 states and 31 transitions. [2020-04-18 10:55:21,972 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 10:55:21,999 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 5 times. [2020-04-18 10:55:22,000 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-04-18 10:55:22,000 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-04-18 10:55:22,000 INFO L87 Difference]: Start difference. First operand 123 states and 260 transitions. Second operand 4 states. [2020-04-18 10:55:22,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 10:55:22,014 INFO L93 Difference]: Finished difference Result 123 states and 260 transitions. [2020-04-18 10:55:22,014 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 260 transitions. [2020-04-18 10:55:22,015 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 10:55:22,016 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [180260151] [2020-04-18 10:55:22,016 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 10:55:22,016 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2] total 2 [2020-04-18 10:55:22,016 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [180260151] [2020-04-18 10:55:22,017 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-04-18 10:55:22,017 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 10:55:22,017 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-04-18 10:55:22,017 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2020-04-18 10:55:22,017 INFO L87 Difference]: Start difference. First operand 68 states and 144 transitions. Second operand 8 states. [2020-04-18 10:55:22,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 10:55:22,213 INFO L93 Difference]: Finished difference Result 81 states and 157 transitions. [2020-04-18 10:55:22,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-04-18 10:55:22,215 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 13 [2020-04-18 10:55:22,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 10:55:22,216 INFO L225 Difference]: With dead ends: 81 [2020-04-18 10:55:22,216 INFO L226 Difference]: Without dead ends: 59 [2020-04-18 10:55:22,216 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2020-04-18 10:55:22,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2020-04-18 10:55:22,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59. [2020-04-18 10:55:22,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2020-04-18 10:55:22,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 114 transitions. [2020-04-18 10:55:22,224 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 114 transitions. Word has length 13 [2020-04-18 10:55:22,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 10:55:22,224 INFO L479 AbstractCegarLoop]: Abstraction has 59 states and 114 transitions. [2020-04-18 10:55:22,224 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-04-18 10:55:22,224 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 114 transitions. [2020-04-18 10:55:22,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-04-18 10:55:22,225 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 10:55:22,225 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 10:55:22,225 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 10:55:22,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 10:55:22,226 INFO L82 PathProgramCache]: Analyzing trace with hash 433937672, now seen corresponding path program 1 times [2020-04-18 10:55:22,226 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 10:55:22,226 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [1090882238] [2020-04-18 10:55:22,227 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 10:55:22,229 INFO L259 McrAutomatonBuilder]: Finished intersection with 94 states and 230 transitions. [2020-04-18 10:55:22,231 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states. [2020-04-18 10:55:22,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-04-18 10:55:22,232 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 10:55:22,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 10:55:22,233 INFO L82 PathProgramCache]: Analyzing trace with hash 1559482212, now seen corresponding path program 2 times [2020-04-18 10:55:22,234 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 10:55:22,234 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1405971054] [2020-04-18 10:55:22,234 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 10:55:22,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 10:55:22,263 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 10:55:22,264 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1405971054] [2020-04-18 10:55:22,264 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 10:55:22,264 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-04-18 10:55:22,264 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 10:55:22,266 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 10:55:22,269 INFO L259 McrAutomatonBuilder]: Finished intersection with 32 states and 50 transitions. [2020-04-18 10:55:22,269 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 10:55:22,276 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 1 times. [2020-04-18 10:55:22,276 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-04-18 10:55:22,277 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-04-18 10:55:22,277 INFO L87 Difference]: Start difference. First operand 94 states. Second operand 4 states. [2020-04-18 10:55:22,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 10:55:22,287 INFO L93 Difference]: Finished difference Result 106 states and 247 transitions. [2020-04-18 10:55:22,288 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 247 transitions. [2020-04-18 10:55:22,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-04-18 10:55:22,288 INFO L105 Mcr]: ---- MCR iteration 1 ---- [2020-04-18 10:55:22,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 10:55:22,289 INFO L82 PathProgramCache]: Analyzing trace with hash 184298484, now seen corresponding path program 3 times [2020-04-18 10:55:22,289 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 10:55:22,289 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [80091173] [2020-04-18 10:55:22,289 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 10:55:22,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 10:55:22,317 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 10:55:22,317 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [80091173] [2020-04-18 10:55:22,318 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 10:55:22,318 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-04-18 10:55:22,318 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 10:55:22,319 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 10:55:22,321 INFO L259 McrAutomatonBuilder]: Finished intersection with 23 states and 30 transitions. [2020-04-18 10:55:22,322 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 10:55:22,333 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times. [2020-04-18 10:55:22,334 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-04-18 10:55:22,334 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-04-18 10:55:22,334 INFO L87 Difference]: Start difference. First operand 106 states and 247 transitions. Second operand 4 states. [2020-04-18 10:55:22,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 10:55:22,351 INFO L93 Difference]: Finished difference Result 169 states and 376 transitions. [2020-04-18 10:55:22,351 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 376 transitions. [2020-04-18 10:55:22,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-04-18 10:55:22,352 INFO L105 Mcr]: ---- MCR iteration 2 ---- [2020-04-18 10:55:22,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 10:55:22,352 INFO L82 PathProgramCache]: Analyzing trace with hash 433937672, now seen corresponding path program 4 times [2020-04-18 10:55:22,352 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 10:55:22,353 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2123910994] [2020-04-18 10:55:22,353 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 10:55:22,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 10:55:22,394 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 10:55:22,395 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2123910994] [2020-04-18 10:55:22,395 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 10:55:22,395 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-04-18 10:55:22,395 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 10:55:22,396 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 10:55:22,399 INFO L259 McrAutomatonBuilder]: Finished intersection with 27 states and 38 transitions. [2020-04-18 10:55:22,400 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 10:55:22,481 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 5 times. [2020-04-18 10:55:22,481 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-04-18 10:55:22,481 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2020-04-18 10:55:22,482 INFO L87 Difference]: Start difference. First operand 169 states and 376 transitions. Second operand 6 states. [2020-04-18 10:55:22,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 10:55:22,517 INFO L93 Difference]: Finished difference Result 169 states and 376 transitions. [2020-04-18 10:55:22,517 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 376 transitions. [2020-04-18 10:55:22,519 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 10:55:22,520 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [1090882238] [2020-04-18 10:55:22,520 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 10:55:22,520 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3] total 3 [2020-04-18 10:55:22,520 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [1090882238] [2020-04-18 10:55:22,521 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-04-18 10:55:22,521 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 10:55:22,521 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-04-18 10:55:22,521 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2020-04-18 10:55:22,522 INFO L87 Difference]: Start difference. First operand 59 states and 114 transitions. Second operand 10 states. [2020-04-18 10:55:22,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 10:55:22,684 INFO L93 Difference]: Finished difference Result 60 states and 104 transitions. [2020-04-18 10:55:22,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-04-18 10:55:22,685 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 14 [2020-04-18 10:55:22,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 10:55:22,686 INFO L225 Difference]: With dead ends: 60 [2020-04-18 10:55:22,686 INFO L226 Difference]: Without dead ends: 45 [2020-04-18 10:55:22,686 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=110, Invalid=352, Unknown=0, NotChecked=0, Total=462 [2020-04-18 10:55:22,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2020-04-18 10:55:22,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2020-04-18 10:55:22,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2020-04-18 10:55:22,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 74 transitions. [2020-04-18 10:55:22,689 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 74 transitions. Word has length 14 [2020-04-18 10:55:22,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 10:55:22,690 INFO L479 AbstractCegarLoop]: Abstraction has 45 states and 74 transitions. [2020-04-18 10:55:22,690 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-04-18 10:55:22,690 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 74 transitions. [2020-04-18 10:55:22,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-04-18 10:55:22,690 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 10:55:22,690 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 10:55:22,691 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 10:55:22,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 10:55:22,691 INFO L82 PathProgramCache]: Analyzing trace with hash 567169455, now seen corresponding path program 1 times [2020-04-18 10:55:22,691 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 10:55:22,691 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [912933501] [2020-04-18 10:55:22,692 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 10:55:22,694 INFO L259 McrAutomatonBuilder]: Finished intersection with 118 states and 300 transitions. [2020-04-18 10:55:22,695 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states. [2020-04-18 10:55:22,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-04-18 10:55:22,696 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 10:55:22,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 10:55:22,696 INFO L82 PathProgramCache]: Analyzing trace with hash 1150340927, now seen corresponding path program 2 times [2020-04-18 10:55:22,696 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 10:55:22,697 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1378493433] [2020-04-18 10:55:22,697 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 10:55:22,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 10:55:22,736 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 10:55:22,736 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1378493433] [2020-04-18 10:55:22,736 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 10:55:22,736 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-04-18 10:55:22,737 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 10:55:22,738 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 10:55:22,742 INFO L259 McrAutomatonBuilder]: Finished intersection with 29 states and 43 transitions. [2020-04-18 10:55:22,742 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 10:55:22,751 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times. [2020-04-18 10:55:22,751 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-04-18 10:55:22,751 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-04-18 10:55:22,751 INFO L87 Difference]: Start difference. First operand 118 states. Second operand 4 states. [2020-04-18 10:55:22,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 10:55:22,766 INFO L93 Difference]: Finished difference Result 142 states and 346 transitions. [2020-04-18 10:55:22,767 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 346 transitions. [2020-04-18 10:55:22,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-04-18 10:55:22,767 INFO L105 Mcr]: ---- MCR iteration 1 ---- [2020-04-18 10:55:22,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 10:55:22,768 INFO L82 PathProgramCache]: Analyzing trace with hash 1469318319, now seen corresponding path program 3 times [2020-04-18 10:55:22,768 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 10:55:22,768 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [515411498] [2020-04-18 10:55:22,769 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 10:55:22,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 10:55:22,827 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 10:55:22,828 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [515411498] [2020-04-18 10:55:22,828 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 10:55:22,828 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-04-18 10:55:22,828 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 10:55:22,829 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 10:55:22,832 INFO L259 McrAutomatonBuilder]: Finished intersection with 25 states and 34 transitions. [2020-04-18 10:55:22,832 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 10:55:22,845 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times. [2020-04-18 10:55:22,845 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-04-18 10:55:22,845 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-04-18 10:55:22,845 INFO L87 Difference]: Start difference. First operand 142 states and 346 transitions. Second operand 4 states. [2020-04-18 10:55:22,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 10:55:22,864 INFO L93 Difference]: Finished difference Result 238 states and 560 transitions. [2020-04-18 10:55:22,864 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 560 transitions. [2020-04-18 10:55:22,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-04-18 10:55:22,865 INFO L105 Mcr]: ---- MCR iteration 2 ---- [2020-04-18 10:55:22,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 10:55:22,865 INFO L82 PathProgramCache]: Analyzing trace with hash 567169455, now seen corresponding path program 4 times [2020-04-18 10:55:22,866 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 10:55:22,866 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1038507213] [2020-04-18 10:55:22,866 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 10:55:22,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 10:55:22,937 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 10:55:22,938 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1038507213] [2020-04-18 10:55:22,938 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 10:55:22,938 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-04-18 10:55:22,939 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 10:55:22,940 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 10:55:22,944 INFO L259 McrAutomatonBuilder]: Finished intersection with 27 states and 37 transitions. [2020-04-18 10:55:22,944 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 10:55:23,033 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 4 times. [2020-04-18 10:55:23,034 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-04-18 10:55:23,035 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2020-04-18 10:55:23,035 INFO L87 Difference]: Start difference. First operand 238 states and 560 transitions. Second operand 7 states. [2020-04-18 10:55:23,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 10:55:23,122 INFO L93 Difference]: Finished difference Result 238 states and 560 transitions. [2020-04-18 10:55:23,122 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 560 transitions. [2020-04-18 10:55:23,123 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 10:55:23,123 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [912933501] [2020-04-18 10:55:23,124 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 10:55:23,124 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2020-04-18 10:55:23,124 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [912933501] [2020-04-18 10:55:23,124 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-04-18 10:55:23,124 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 10:55:23,125 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-04-18 10:55:23,125 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=188, Unknown=0, NotChecked=0, Total=240 [2020-04-18 10:55:23,125 INFO L87 Difference]: Start difference. First operand 45 states and 74 transitions. Second operand 11 states. [2020-04-18 10:55:23,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 10:55:23,321 INFO L93 Difference]: Finished difference Result 42 states and 66 transitions. [2020-04-18 10:55:23,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-04-18 10:55:23,322 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 15 [2020-04-18 10:55:23,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 10:55:23,323 INFO L225 Difference]: With dead ends: 42 [2020-04-18 10:55:23,323 INFO L226 Difference]: Without dead ends: 36 [2020-04-18 10:55:23,323 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 78 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=117, Invalid=389, Unknown=0, NotChecked=0, Total=506 [2020-04-18 10:55:23,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2020-04-18 10:55:23,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2020-04-18 10:55:23,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2020-04-18 10:55:23,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 56 transitions. [2020-04-18 10:55:23,326 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 56 transitions. Word has length 15 [2020-04-18 10:55:23,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 10:55:23,326 INFO L479 AbstractCegarLoop]: Abstraction has 36 states and 56 transitions. [2020-04-18 10:55:23,326 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-04-18 10:55:23,326 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 56 transitions. [2020-04-18 10:55:23,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-04-18 10:55:23,327 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 10:55:23,327 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 10:55:23,327 INFO L427 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 10:55:23,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 10:55:23,328 INFO L82 PathProgramCache]: Analyzing trace with hash -412776350, now seen corresponding path program 1 times [2020-04-18 10:55:23,328 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 10:55:23,328 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [1898097661] [2020-04-18 10:55:23,329 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 10:55:23,333 INFO L259 McrAutomatonBuilder]: Finished intersection with 234 states and 656 transitions. [2020-04-18 10:55:23,335 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states. [2020-04-18 10:55:23,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-04-18 10:55:23,336 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 10:55:23,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 10:55:23,336 INFO L82 PathProgramCache]: Analyzing trace with hash 219391538, now seen corresponding path program 2 times [2020-04-18 10:55:23,337 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 10:55:23,337 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [530922977] [2020-04-18 10:55:23,337 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 10:55:23,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 10:55:23,375 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 10:55:23,375 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [530922977] [2020-04-18 10:55:23,376 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 10:55:23,376 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-04-18 10:55:23,376 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 10:55:23,378 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 10:55:23,382 INFO L259 McrAutomatonBuilder]: Finished intersection with 41 states and 66 transitions. [2020-04-18 10:55:23,382 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 10:55:23,389 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times. [2020-04-18 10:55:23,390 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-04-18 10:55:23,390 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-04-18 10:55:23,390 INFO L87 Difference]: Start difference. First operand 234 states. Second operand 4 states. [2020-04-18 10:55:23,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 10:55:23,403 INFO L93 Difference]: Finished difference Result 306 states and 842 transitions. [2020-04-18 10:55:23,403 INFO L276 IsEmpty]: Start isEmpty. Operand 306 states and 842 transitions. [2020-04-18 10:55:23,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-04-18 10:55:23,405 INFO L105 Mcr]: ---- MCR iteration 1 ---- [2020-04-18 10:55:23,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 10:55:23,405 INFO L82 PathProgramCache]: Analyzing trace with hash -1211011038, now seen corresponding path program 3 times [2020-04-18 10:55:23,405 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 10:55:23,406 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [738529325] [2020-04-18 10:55:23,406 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 10:55:23,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 10:55:23,437 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 10:55:23,438 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [738529325] [2020-04-18 10:55:23,438 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 10:55:23,438 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-04-18 10:55:23,439 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 10:55:23,440 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 10:55:23,444 INFO L259 McrAutomatonBuilder]: Finished intersection with 24 states and 29 transitions. [2020-04-18 10:55:23,444 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 10:55:23,470 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times. [2020-04-18 10:55:23,470 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-04-18 10:55:23,470 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-04-18 10:55:23,470 INFO L87 Difference]: Start difference. First operand 306 states and 842 transitions. Second operand 4 states. [2020-04-18 10:55:23,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 10:55:23,528 INFO L93 Difference]: Finished difference Result 516 states and 1378 transitions. [2020-04-18 10:55:23,528 INFO L276 IsEmpty]: Start isEmpty. Operand 516 states and 1378 transitions. [2020-04-18 10:55:23,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-04-18 10:55:23,529 INFO L105 Mcr]: ---- MCR iteration 2 ---- [2020-04-18 10:55:23,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 10:55:23,529 INFO L82 PathProgramCache]: Analyzing trace with hash -412776350, now seen corresponding path program 4 times [2020-04-18 10:55:23,530 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 10:55:23,530 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1142115087] [2020-04-18 10:55:23,530 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 10:55:23,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 10:55:23,558 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 10:55:23,558 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1142115087] [2020-04-18 10:55:23,559 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 10:55:23,559 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-04-18 10:55:23,560 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 10:55:23,561 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 10:55:23,564 INFO L259 McrAutomatonBuilder]: Finished intersection with 30 states and 41 transitions. [2020-04-18 10:55:23,564 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 10:55:23,609 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 4 times. [2020-04-18 10:55:23,609 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-04-18 10:55:23,609 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2020-04-18 10:55:23,610 INFO L87 Difference]: Start difference. First operand 516 states and 1378 transitions. Second operand 5 states. [2020-04-18 10:55:23,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 10:55:23,654 INFO L93 Difference]: Finished difference Result 758 states and 1889 transitions. [2020-04-18 10:55:23,655 INFO L276 IsEmpty]: Start isEmpty. Operand 758 states and 1889 transitions. [2020-04-18 10:55:23,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-04-18 10:55:23,657 INFO L105 Mcr]: ---- MCR iteration 3 ---- [2020-04-18 10:55:23,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 10:55:23,657 INFO L82 PathProgramCache]: Analyzing trace with hash -410995550, now seen corresponding path program 5 times [2020-04-18 10:55:23,658 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 10:55:23,658 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1607533148] [2020-04-18 10:55:23,658 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 10:55:23,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 10:55:23,713 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 10:55:23,713 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1607533148] [2020-04-18 10:55:23,713 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 10:55:23,714 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-04-18 10:55:23,714 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 10:55:23,715 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 10:55:23,719 INFO L259 McrAutomatonBuilder]: Finished intersection with 29 states and 39 transitions. [2020-04-18 10:55:23,719 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 10:55:23,812 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 4 times. [2020-04-18 10:55:23,812 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-04-18 10:55:23,812 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=228, Unknown=0, NotChecked=0, Total=272 [2020-04-18 10:55:23,812 INFO L87 Difference]: Start difference. First operand 758 states and 1889 transitions. Second operand 7 states. [2020-04-18 10:55:23,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 10:55:23,940 INFO L93 Difference]: Finished difference Result 774 states and 1897 transitions. [2020-04-18 10:55:23,940 INFO L276 IsEmpty]: Start isEmpty. Operand 774 states and 1897 transitions. [2020-04-18 10:55:23,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-04-18 10:55:23,942 INFO L105 Mcr]: ---- MCR iteration 4 ---- [2020-04-18 10:55:23,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 10:55:23,943 INFO L82 PathProgramCache]: Analyzing trace with hash 1161565432, now seen corresponding path program 6 times [2020-04-18 10:55:23,943 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 10:55:23,943 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [540343079] [2020-04-18 10:55:23,943 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 10:55:23,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 10:55:23,974 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 10:55:23,975 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [540343079] [2020-04-18 10:55:23,975 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 10:55:23,975 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-04-18 10:55:23,976 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 10:55:23,977 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 10:55:23,980 INFO L259 McrAutomatonBuilder]: Finished intersection with 26 states and 34 transitions. [2020-04-18 10:55:23,980 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 10:55:24,016 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times. [2020-04-18 10:55:24,016 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-04-18 10:55:24,017 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=394, Unknown=0, NotChecked=0, Total=462 [2020-04-18 10:55:24,017 INFO L87 Difference]: Start difference. First operand 774 states and 1897 transitions. Second operand 4 states. [2020-04-18 10:55:24,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 10:55:24,044 INFO L93 Difference]: Finished difference Result 1028 states and 2447 transitions. [2020-04-18 10:55:24,044 INFO L276 IsEmpty]: Start isEmpty. Operand 1028 states and 2447 transitions. [2020-04-18 10:55:24,047 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 10:55:24,048 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [1898097661] [2020-04-18 10:55:24,048 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 10:55:24,048 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2] total 2 [2020-04-18 10:55:24,048 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [1898097661] [2020-04-18 10:55:24,048 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-04-18 10:55:24,049 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 10:55:24,049 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-04-18 10:55:24,049 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=434, Unknown=0, NotChecked=0, Total=506 [2020-04-18 10:55:24,049 INFO L87 Difference]: Start difference. First operand 36 states and 56 transitions. Second operand 16 states. [2020-04-18 10:55:24,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 10:55:24,381 INFO L93 Difference]: Finished difference Result 35 states and 55 transitions. [2020-04-18 10:55:24,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-04-18 10:55:24,382 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 17 [2020-04-18 10:55:24,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 10:55:24,383 INFO L225 Difference]: With dead ends: 35 [2020-04-18 10:55:24,383 INFO L226 Difference]: Without dead ends: 0 [2020-04-18 10:55:24,384 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 273 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=254, Invalid=1152, Unknown=0, NotChecked=0, Total=1406 [2020-04-18 10:55:24,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-04-18 10:55:24,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-04-18 10:55:24,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-04-18 10:55:24,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-04-18 10:55:24,385 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2020-04-18 10:55:24,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 10:55:24,385 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-04-18 10:55:24,385 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-04-18 10:55:24,385 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-04-18 10:55:24,385 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 10:55:24,388 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.04 10:55:24 BasicIcfg [2020-04-18 10:55:24,389 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-04-18 10:55:24,391 INFO L168 Benchmark]: Toolchain (without parser) took 7585.24 ms. Allocated memory was 138.4 MB in the beginning and 315.1 MB in the end (delta: 176.7 MB). Free memory was 100.5 MB in the beginning and 268.1 MB in the end (delta: -167.6 MB). Peak memory consumption was 9.1 MB. Max. memory is 7.1 GB. [2020-04-18 10:55:24,392 INFO L168 Benchmark]: CDTParser took 0.46 ms. Allocated memory is still 138.4 MB. Free memory was 120.3 MB in the beginning and 120.1 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-04-18 10:55:24,392 INFO L168 Benchmark]: CACSL2BoogieTranslator took 653.09 ms. Allocated memory was 138.4 MB in the beginning and 201.9 MB in the end (delta: 63.4 MB). Free memory was 98.5 MB in the beginning and 159.0 MB in the end (delta: -60.5 MB). Peak memory consumption was 24.4 MB. Max. memory is 7.1 GB. [2020-04-18 10:55:24,393 INFO L168 Benchmark]: Boogie Procedure Inliner took 77.47 ms. Allocated memory is still 201.9 MB. Free memory was 159.0 MB in the beginning and 156.7 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 7.1 GB. [2020-04-18 10:55:24,394 INFO L168 Benchmark]: Boogie Preprocessor took 40.88 ms. Allocated memory is still 201.9 MB. Free memory was 156.7 MB in the beginning and 155.4 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2020-04-18 10:55:24,394 INFO L168 Benchmark]: RCFGBuilder took 448.17 ms. Allocated memory is still 201.9 MB. Free memory was 154.7 MB in the beginning and 133.2 MB in the end (delta: 21.6 MB). Peak memory consumption was 21.6 MB. Max. memory is 7.1 GB. [2020-04-18 10:55:24,395 INFO L168 Benchmark]: TraceAbstraction took 6334.26 ms. Allocated memory was 201.9 MB in the beginning and 315.1 MB in the end (delta: 113.2 MB). Free memory was 132.5 MB in the beginning and 268.1 MB in the end (delta: -135.6 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-04-18 10:55:24,398 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.46 ms. Allocated memory is still 138.4 MB. Free memory was 120.3 MB in the beginning and 120.1 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 653.09 ms. Allocated memory was 138.4 MB in the beginning and 201.9 MB in the end (delta: 63.4 MB). Free memory was 98.5 MB in the beginning and 159.0 MB in the end (delta: -60.5 MB). Peak memory consumption was 24.4 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 77.47 ms. Allocated memory is still 201.9 MB. Free memory was 159.0 MB in the beginning and 156.7 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 40.88 ms. Allocated memory is still 201.9 MB. Free memory was 156.7 MB in the beginning and 155.4 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 448.17 ms. Allocated memory is still 201.9 MB. Free memory was 154.7 MB in the beginning and 133.2 MB in the end (delta: 21.6 MB). Peak memory consumption was 21.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 6334.26 ms. Allocated memory was 201.9 MB in the beginning and 315.1 MB in the end (delta: 113.2 MB). Free memory was 132.5 MB in the beginning and 268.1 MB in the end (delta: -135.6 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.9s, 78 ProgramPointsBefore, 31 ProgramPointsAfterwards, 70 TransitionsBefore, 22 TransitionsAfterwards, 1260 CoEnabledTransitionPairs, 7 FixpointIterations, 14 TrivialSequentialCompositions, 37 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 1 ChoiceCompositions, 670 VarBasedMoverChecksPositive, 34 VarBasedMoverChecksNegative, 10 SemBasedMoverChecksPositive, 36 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.3s, 0 MoverChecksTotal, 2700 CheckedPairsTotal, 59 TotalNumberOfCompositions - PositiveResult [Line: 7]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 69 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 6.2s, OverallIterations: 8, TraceHistogramMax: 1, AutomataDifference: 1.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.0s, HoareTripleCheckerStatistics: 141 SDtfs, 259 SDslu, 378 SDs, 0 SdLazy, 371 SolverSat, 81 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 401 GetRequests, 277 SyntacticMatches, 0 SemanticMatches, 124 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 532 ImplicationChecksByTransitivity, 1.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=298occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 8 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: No data available, 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...