/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-NoLbe-McrStrategy.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe028_pso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-b981219 [2020-04-18 19:53:09,531 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-04-18 19:53:09,534 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-04-18 19:53:09,551 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-04-18 19:53:09,552 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-04-18 19:53:09,554 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-04-18 19:53:09,555 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-04-18 19:53:09,564 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-04-18 19:53:09,566 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-04-18 19:53:09,567 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-04-18 19:53:09,568 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-04-18 19:53:09,569 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-04-18 19:53:09,569 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-04-18 19:53:09,570 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-04-18 19:53:09,571 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-04-18 19:53:09,572 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-04-18 19:53:09,573 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-04-18 19:53:09,574 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-04-18 19:53:09,575 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-04-18 19:53:09,577 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-04-18 19:53:09,578 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-04-18 19:53:09,579 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-04-18 19:53:09,580 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-04-18 19:53:09,581 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-04-18 19:53:09,583 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-04-18 19:53:09,583 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-04-18 19:53:09,583 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-04-18 19:53:09,584 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-04-18 19:53:09,584 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-04-18 19:53:09,585 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-04-18 19:53:09,585 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-04-18 19:53:09,586 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-04-18 19:53:09,587 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-04-18 19:53:09,587 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-04-18 19:53:09,588 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-04-18 19:53:09,589 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-04-18 19:53:09,589 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-04-18 19:53:09,589 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-04-18 19:53:09,590 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-04-18 19:53:09,591 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-04-18 19:53:09,591 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-04-18 19:53:09,593 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-NoLbe-McrStrategy.epf [2020-04-18 19:53:09,609 INFO L113 SettingsManager]: Loading preferences was successful [2020-04-18 19:53:09,609 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-04-18 19:53:09,610 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-04-18 19:53:09,611 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-04-18 19:53:09,611 INFO L138 SettingsManager]: * Use SBE=true [2020-04-18 19:53:09,611 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-04-18 19:53:09,611 INFO L138 SettingsManager]: * sizeof long=4 [2020-04-18 19:53:09,611 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-04-18 19:53:09,612 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-04-18 19:53:09,612 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-04-18 19:53:09,612 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-04-18 19:53:09,612 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-04-18 19:53:09,612 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-04-18 19:53:09,613 INFO L138 SettingsManager]: * sizeof long double=12 [2020-04-18 19:53:09,613 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-04-18 19:53:09,613 INFO L138 SettingsManager]: * Use constant arrays=true [2020-04-18 19:53:09,613 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-04-18 19:53:09,613 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-04-18 19:53:09,614 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-04-18 19:53:09,614 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-04-18 19:53:09,614 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-04-18 19:53:09,614 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-04-18 19:53:09,614 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-04-18 19:53:09,615 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-04-18 19:53:09,615 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-04-18 19:53:09,615 INFO L138 SettingsManager]: * Trace refinement strategy=MCR [2020-04-18 19:53:09,615 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-04-18 19:53:09,615 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2020-04-18 19:53:09,616 INFO L138 SettingsManager]: * Trace refinement strategy used in MCR=CAMEL [2020-04-18 19:53:09,616 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-04-18 19:53:09,616 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-04-18 19:53:09,916 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-04-18 19:53:09,933 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-04-18 19:53:09,937 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-04-18 19:53:09,938 INFO L271 PluginConnector]: Initializing CDTParser... [2020-04-18 19:53:09,938 INFO L275 PluginConnector]: CDTParser initialized [2020-04-18 19:53:09,939 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe028_pso.opt.i [2020-04-18 19:53:10,011 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f093052a3/f80e149bedb04f2590741ab8a1a6286b/FLAGf9c017efb [2020-04-18 19:53:10,518 INFO L306 CDTParser]: Found 1 translation units. [2020-04-18 19:53:10,519 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe028_pso.opt.i [2020-04-18 19:53:10,536 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f093052a3/f80e149bedb04f2590741ab8a1a6286b/FLAGf9c017efb [2020-04-18 19:53:10,877 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f093052a3/f80e149bedb04f2590741ab8a1a6286b [2020-04-18 19:53:10,887 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-04-18 19:53:10,908 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-04-18 19:53:10,909 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-04-18 19:53:10,909 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-04-18 19:53:10,914 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-04-18 19:53:10,915 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 07:53:10" (1/1) ... [2020-04-18 19:53:10,918 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@75cf9aed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:53:10, skipping insertion in model container [2020-04-18 19:53:10,919 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 07:53:10" (1/1) ... [2020-04-18 19:53:10,926 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-04-18 19:53:10,993 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-04-18 19:53:11,452 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-04-18 19:53:11,466 INFO L203 MainTranslator]: Completed pre-run [2020-04-18 19:53:11,548 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-04-18 19:53:11,626 INFO L208 MainTranslator]: Completed translation [2020-04-18 19:53:11,627 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:53:11 WrapperNode [2020-04-18 19:53:11,627 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-04-18 19:53:11,628 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-04-18 19:53:11,628 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-04-18 19:53:11,628 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-04-18 19:53:11,637 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:53:11" (1/1) ... [2020-04-18 19:53:11,654 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:53:11" (1/1) ... [2020-04-18 19:53:11,677 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-04-18 19:53:11,678 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-04-18 19:53:11,678 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-04-18 19:53:11,678 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-04-18 19:53:11,688 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:53:11" (1/1) ... [2020-04-18 19:53:11,688 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:53:11" (1/1) ... [2020-04-18 19:53:11,691 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:53:11" (1/1) ... [2020-04-18 19:53:11,691 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:53:11" (1/1) ... [2020-04-18 19:53:11,698 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:53:11" (1/1) ... [2020-04-18 19:53:11,700 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:53:11" (1/1) ... [2020-04-18 19:53:11,702 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:53:11" (1/1) ... [2020-04-18 19:53:11,705 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-04-18 19:53:11,706 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-04-18 19:53:11,706 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-04-18 19:53:11,706 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-04-18 19:53:11,707 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:53:11" (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 19:53:11,773 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-04-18 19:53:11,774 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-04-18 19:53:11,774 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-04-18 19:53:11,774 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-04-18 19:53:11,774 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-04-18 19:53:11,774 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-04-18 19:53:11,775 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-04-18 19:53:11,775 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-04-18 19:53:11,775 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-04-18 19:53:11,775 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-04-18 19:53:11,775 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-04-18 19:53:11,775 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-04-18 19:53:11,776 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-04-18 19:53:11,777 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 19:53:12,284 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-04-18 19:53:12,285 INFO L295 CfgBuilder]: Removed 8 assume(true) statements. [2020-04-18 19:53:12,289 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 07:53:12 BoogieIcfgContainer [2020-04-18 19:53:12,289 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-04-18 19:53:12,290 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-04-18 19:53:12,291 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-04-18 19:53:12,294 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-04-18 19:53:12,294 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.04 07:53:10" (1/3) ... [2020-04-18 19:53:12,295 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@668ee4e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 07:53:12, skipping insertion in model container [2020-04-18 19:53:12,295 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:53:11" (2/3) ... [2020-04-18 19:53:12,296 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@668ee4e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 07:53:12, skipping insertion in model container [2020-04-18 19:53:12,296 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 07:53:12" (3/3) ... [2020-04-18 19:53:12,298 INFO L109 eAbstractionObserver]: Analyzing ICFG safe028_pso.opt.i [2020-04-18 19:53:12,308 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-04-18 19:53:12,308 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-04-18 19:53:12,315 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-04-18 19:53:12,316 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-04-18 19:53:12,340 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:53:12,340 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:53:12,340 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:53:12,341 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:53:12,341 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:53:12,342 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:53:12,342 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:53:12,342 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:53:12,343 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:53:12,343 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:53:12,343 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:53:12,344 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:53:12,344 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:53:12,344 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:53:12,345 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:53:12,345 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:53:12,345 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:53:12,346 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:53:12,350 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:53:12,350 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:53:12,351 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:53:12,351 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:53:12,364 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:53:12,365 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:53:12,365 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:53:12,365 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:53:12,368 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:53:12,368 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:53:12,368 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:53:12,369 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:53:12,384 INFO L251 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-04-18 19:53:12,405 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-04-18 19:53:12,405 INFO L376 AbstractCegarLoop]: Hoare is true [2020-04-18 19:53:12,406 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-04-18 19:53:12,406 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-04-18 19:53:12,407 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-04-18 19:53:12,407 INFO L380 AbstractCegarLoop]: Difference is false [2020-04-18 19:53:12,407 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-04-18 19:53:12,408 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-04-18 19:53:12,424 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 77 places, 69 transitions, 153 flow [2020-04-18 19:53:12,809 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 7268 states. [2020-04-18 19:53:12,812 INFO L276 IsEmpty]: Start isEmpty. Operand 7268 states. [2020-04-18 19:53:12,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2020-04-18 19:53:12,839 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 19:53:12,840 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 19:53:12,841 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 19:53:12,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 19:53:12,847 INFO L82 PathProgramCache]: Analyzing trace with hash 1749580001, now seen corresponding path program 1 times [2020-04-18 19:53:12,854 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 19:53:12,855 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [1874285324] [2020-04-18 19:53:12,870 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 19:53:12,886 INFO L259 McrAutomatonBuilder]: Finished intersection with 37 states and 36 transitions. [2020-04-18 19:53:12,888 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states. [2020-04-18 19:53:12,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2020-04-18 19:53:12,889 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 19:53:12,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 19:53:12,890 INFO L82 PathProgramCache]: Analyzing trace with hash 1749580001, now seen corresponding path program 2 times [2020-04-18 19:53:12,893 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 19:53:12,894 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1536512452] [2020-04-18 19:53:12,894 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 19:53:13,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 19:53:13,454 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 19:53:13,458 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1536512452] [2020-04-18 19:53:13,458 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 19:53:13,459 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-04-18 19:53:13,460 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 19:53:13,464 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 19:53:13,473 INFO L259 McrAutomatonBuilder]: Finished intersection with 37 states and 36 transitions. [2020-04-18 19:53:13,474 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 19:53:13,584 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times. [2020-04-18 19:53:13,587 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-04-18 19:53:13,588 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-04-18 19:53:13,590 INFO L87 Difference]: Start difference. First operand 37 states. Second operand 7 states. [2020-04-18 19:53:13,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 19:53:13,678 INFO L93 Difference]: Finished difference Result 37 states and 36 transitions. [2020-04-18 19:53:13,678 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 36 transitions. [2020-04-18 19:53:13,679 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 19:53:13,679 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [1874285324] [2020-04-18 19:53:13,680 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 19:53:13,680 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-04-18 19:53:13,681 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [1874285324] [2020-04-18 19:53:13,682 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-04-18 19:53:13,682 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 19:53:13,687 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-04-18 19:53:13,687 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2020-04-18 19:53:13,688 INFO L87 Difference]: Start difference. First operand 7268 states. Second operand 7 states. [2020-04-18 19:53:14,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 19:53:14,048 INFO L93 Difference]: Finished difference Result 10040 states and 34690 transitions. [2020-04-18 19:53:14,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-04-18 19:53:14,050 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 36 [2020-04-18 19:53:14,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 19:53:14,113 INFO L225 Difference]: With dead ends: 10040 [2020-04-18 19:53:14,114 INFO L226 Difference]: Without dead ends: 3530 [2020-04-18 19:53:14,117 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2020-04-18 19:53:14,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3530 states. [2020-04-18 19:53:14,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3530 to 3530. [2020-04-18 19:53:14,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3530 states. [2020-04-18 19:53:14,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3530 states to 3530 states and 11925 transitions. [2020-04-18 19:53:14,371 INFO L78 Accepts]: Start accepts. Automaton has 3530 states and 11925 transitions. Word has length 36 [2020-04-18 19:53:14,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 19:53:14,373 INFO L479 AbstractCegarLoop]: Abstraction has 3530 states and 11925 transitions. [2020-04-18 19:53:14,376 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-04-18 19:53:14,376 INFO L276 IsEmpty]: Start isEmpty. Operand 3530 states and 11925 transitions. [2020-04-18 19:53:14,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-04-18 19:53:14,384 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 19:53:14,392 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 19:53:14,392 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 19:53:14,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 19:53:14,393 INFO L82 PathProgramCache]: Analyzing trace with hash 684595906, now seen corresponding path program 1 times [2020-04-18 19:53:14,393 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 19:53:14,393 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [1677059733] [2020-04-18 19:53:14,395 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 19:53:14,397 INFO L259 McrAutomatonBuilder]: Finished intersection with 63 states and 86 transitions. [2020-04-18 19:53:14,399 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states. [2020-04-18 19:53:14,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-04-18 19:53:14,401 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 19:53:14,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 19:53:14,402 INFO L82 PathProgramCache]: Analyzing trace with hash 684595906, now seen corresponding path program 2 times [2020-04-18 19:53:14,402 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 19:53:14,402 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1084874360] [2020-04-18 19:53:14,403 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 19:53:14,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 19:53:14,625 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 19:53:14,625 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1084874360] [2020-04-18 19:53:14,625 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 19:53:14,626 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-04-18 19:53:14,626 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 19:53:14,630 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 19:53:14,636 INFO L259 McrAutomatonBuilder]: Finished intersection with 51 states and 62 transitions. [2020-04-18 19:53:14,636 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 19:53:14,691 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 2 times. [2020-04-18 19:53:14,691 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-04-18 19:53:14,692 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-04-18 19:53:14,692 INFO L87 Difference]: Start difference. First operand 63 states. Second operand 7 states. [2020-04-18 19:53:14,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 19:53:14,796 INFO L93 Difference]: Finished difference Result 63 states and 86 transitions. [2020-04-18 19:53:14,796 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 86 transitions. [2020-04-18 19:53:14,796 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 19:53:14,797 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [1677059733] [2020-04-18 19:53:14,797 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 19:53:14,797 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-04-18 19:53:14,798 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [1677059733] [2020-04-18 19:53:14,801 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-04-18 19:53:14,802 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 19:53:14,802 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-04-18 19:53:14,802 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2020-04-18 19:53:14,802 INFO L87 Difference]: Start difference. First operand 3530 states and 11925 transitions. Second operand 7 states. [2020-04-18 19:53:15,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 19:53:15,075 INFO L93 Difference]: Finished difference Result 4930 states and 16520 transitions. [2020-04-18 19:53:15,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-04-18 19:53:15,076 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 38 [2020-04-18 19:53:15,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 19:53:15,101 INFO L225 Difference]: With dead ends: 4930 [2020-04-18 19:53:15,101 INFO L226 Difference]: Without dead ends: 2620 [2020-04-18 19:53:15,112 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2020-04-18 19:53:15,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2620 states. [2020-04-18 19:53:15,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2620 to 2620. [2020-04-18 19:53:15,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2620 states. [2020-04-18 19:53:15,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2620 states to 2620 states and 8569 transitions. [2020-04-18 19:53:15,226 INFO L78 Accepts]: Start accepts. Automaton has 2620 states and 8569 transitions. Word has length 38 [2020-04-18 19:53:15,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 19:53:15,227 INFO L479 AbstractCegarLoop]: Abstraction has 2620 states and 8569 transitions. [2020-04-18 19:53:15,227 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-04-18 19:53:15,227 INFO L276 IsEmpty]: Start isEmpty. Operand 2620 states and 8569 transitions. [2020-04-18 19:53:15,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2020-04-18 19:53:15,234 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 19:53:15,235 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 19:53:15,235 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 19:53:15,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 19:53:15,237 INFO L82 PathProgramCache]: Analyzing trace with hash 164325217, now seen corresponding path program 1 times [2020-04-18 19:53:15,237 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 19:53:15,238 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [2047244039] [2020-04-18 19:53:15,239 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 19:53:15,246 INFO L259 McrAutomatonBuilder]: Finished intersection with 149 states and 304 transitions. [2020-04-18 19:53:15,249 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states. [2020-04-18 19:53:15,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2020-04-18 19:53:15,250 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 19:53:15,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 19:53:15,250 INFO L82 PathProgramCache]: Analyzing trace with hash 164325217, now seen corresponding path program 2 times [2020-04-18 19:53:15,250 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 19:53:15,251 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [784817143] [2020-04-18 19:53:15,251 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 19:53:15,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 19:53:15,456 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 19:53:15,457 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [784817143] [2020-04-18 19:53:15,458 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 19:53:15,458 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-04-18 19:53:15,458 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 19:53:15,463 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 19:53:15,473 INFO L259 McrAutomatonBuilder]: Finished intersection with 87 states and 144 transitions. [2020-04-18 19:53:15,473 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 19:53:15,520 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 14 times. [2020-04-18 19:53:15,520 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-04-18 19:53:15,521 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-04-18 19:53:15,521 INFO L87 Difference]: Start difference. First operand 149 states. Second operand 6 states. [2020-04-18 19:53:15,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 19:53:15,572 INFO L93 Difference]: Finished difference Result 149 states and 304 transitions. [2020-04-18 19:53:15,572 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 304 transitions. [2020-04-18 19:53:15,572 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 19:53:15,573 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [2047244039] [2020-04-18 19:53:15,573 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 19:53:15,573 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-04-18 19:53:15,574 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [2047244039] [2020-04-18 19:53:15,574 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-04-18 19:53:15,574 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 19:53:15,574 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-04-18 19:53:15,575 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-04-18 19:53:15,575 INFO L87 Difference]: Start difference. First operand 2620 states and 8569 transitions. Second operand 6 states. [2020-04-18 19:53:15,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 19:53:15,758 INFO L93 Difference]: Finished difference Result 3308 states and 10677 transitions. [2020-04-18 19:53:15,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-04-18 19:53:15,759 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 40 [2020-04-18 19:53:15,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 19:53:15,777 INFO L225 Difference]: With dead ends: 3308 [2020-04-18 19:53:15,777 INFO L226 Difference]: Without dead ends: 2412 [2020-04-18 19:53:15,778 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-04-18 19:53:15,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2412 states. [2020-04-18 19:53:15,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2412 to 2412. [2020-04-18 19:53:15,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2412 states. [2020-04-18 19:53:15,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2412 states to 2412 states and 7777 transitions. [2020-04-18 19:53:15,858 INFO L78 Accepts]: Start accepts. Automaton has 2412 states and 7777 transitions. Word has length 40 [2020-04-18 19:53:15,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 19:53:15,859 INFO L479 AbstractCegarLoop]: Abstraction has 2412 states and 7777 transitions. [2020-04-18 19:53:15,859 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-04-18 19:53:15,859 INFO L276 IsEmpty]: Start isEmpty. Operand 2412 states and 7777 transitions. [2020-04-18 19:53:15,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-04-18 19:53:15,865 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 19:53:15,865 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 19:53:15,865 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 19:53:15,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 19:53:15,866 INFO L82 PathProgramCache]: Analyzing trace with hash -1288769191, now seen corresponding path program 1 times [2020-04-18 19:53:15,866 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 19:53:15,866 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [605629826] [2020-04-18 19:53:15,867 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 19:53:15,872 INFO L259 McrAutomatonBuilder]: Finished intersection with 192 states and 413 transitions. [2020-04-18 19:53:15,873 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states. [2020-04-18 19:53:15,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-04-18 19:53:15,874 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 19:53:15,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 19:53:15,874 INFO L82 PathProgramCache]: Analyzing trace with hash -1288769191, now seen corresponding path program 2 times [2020-04-18 19:53:15,875 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 19:53:15,875 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1785161569] [2020-04-18 19:53:15,875 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 19:53:15,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 19:53:15,983 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 19:53:15,984 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1785161569] [2020-04-18 19:53:15,984 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 19:53:15,984 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-04-18 19:53:15,984 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 19:53:15,989 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 19:53:15,998 INFO L259 McrAutomatonBuilder]: Finished intersection with 77 states and 115 transitions. [2020-04-18 19:53:15,998 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 19:53:16,096 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 11 times. [2020-04-18 19:53:16,096 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-04-18 19:53:16,097 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-04-18 19:53:16,097 INFO L87 Difference]: Start difference. First operand 192 states. Second operand 8 states. [2020-04-18 19:53:16,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 19:53:16,216 INFO L93 Difference]: Finished difference Result 192 states and 413 transitions. [2020-04-18 19:53:16,217 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 413 transitions. [2020-04-18 19:53:16,217 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 19:53:16,218 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [605629826] [2020-04-18 19:53:16,218 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 19:53:16,218 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-04-18 19:53:16,218 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [605629826] [2020-04-18 19:53:16,219 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-04-18 19:53:16,219 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 19:53:16,219 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-04-18 19:53:16,220 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=115, Unknown=0, NotChecked=0, Total=182 [2020-04-18 19:53:16,221 INFO L87 Difference]: Start difference. First operand 2412 states and 7777 transitions. Second operand 8 states. [2020-04-18 19:53:16,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 19:53:16,378 INFO L93 Difference]: Finished difference Result 2508 states and 7847 transitions. [2020-04-18 19:53:16,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-04-18 19:53:16,378 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 41 [2020-04-18 19:53:16,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 19:53:16,393 INFO L225 Difference]: With dead ends: 2508 [2020-04-18 19:53:16,393 INFO L226 Difference]: Without dead ends: 1740 [2020-04-18 19:53:16,394 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=83, Invalid=157, Unknown=0, NotChecked=0, Total=240 [2020-04-18 19:53:16,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1740 states. [2020-04-18 19:53:16,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1740 to 1740. [2020-04-18 19:53:16,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1740 states. [2020-04-18 19:53:16,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1740 states to 1740 states and 5343 transitions. [2020-04-18 19:53:16,450 INFO L78 Accepts]: Start accepts. Automaton has 1740 states and 5343 transitions. Word has length 41 [2020-04-18 19:53:16,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 19:53:16,454 INFO L479 AbstractCegarLoop]: Abstraction has 1740 states and 5343 transitions. [2020-04-18 19:53:16,454 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-04-18 19:53:16,454 INFO L276 IsEmpty]: Start isEmpty. Operand 1740 states and 5343 transitions. [2020-04-18 19:53:16,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-04-18 19:53:16,460 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 19:53:16,460 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 19:53:16,460 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 19:53:16,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 19:53:16,461 INFO L82 PathProgramCache]: Analyzing trace with hash -475008714, now seen corresponding path program 1 times [2020-04-18 19:53:16,461 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 19:53:16,462 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [1575711953] [2020-04-18 19:53:16,464 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 19:53:16,470 INFO L259 McrAutomatonBuilder]: Finished intersection with 296 states and 691 transitions. [2020-04-18 19:53:16,472 INFO L276 IsEmpty]: Start isEmpty. Operand 296 states. [2020-04-18 19:53:16,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-04-18 19:53:16,473 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 19:53:16,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 19:53:16,474 INFO L82 PathProgramCache]: Analyzing trace with hash -1926953606, now seen corresponding path program 2 times [2020-04-18 19:53:16,474 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 19:53:16,475 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [931104771] [2020-04-18 19:53:16,475 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 19:53:16,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 19:53:16,682 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 19:53:16,683 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [931104771] [2020-04-18 19:53:16,684 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 19:53:16,684 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-04-18 19:53:16,684 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 19:53:16,689 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 19:53:16,779 INFO L259 McrAutomatonBuilder]: Finished intersection with 97 states and 154 transitions. [2020-04-18 19:53:16,780 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 19:53:16,871 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 17 times. [2020-04-18 19:53:16,871 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-04-18 19:53:16,872 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-04-18 19:53:16,872 INFO L87 Difference]: Start difference. First operand 296 states. Second operand 9 states. [2020-04-18 19:53:17,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 19:53:17,116 INFO L93 Difference]: Finished difference Result 296 states and 691 transitions. [2020-04-18 19:53:17,117 INFO L276 IsEmpty]: Start isEmpty. Operand 296 states and 691 transitions. [2020-04-18 19:53:17,117 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 19:53:17,118 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [1575711953] [2020-04-18 19:53:17,118 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 19:53:17,118 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-04-18 19:53:17,118 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [1575711953] [2020-04-18 19:53:17,119 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-04-18 19:53:17,119 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 19:53:17,119 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-04-18 19:53:17,119 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=178, Unknown=0, NotChecked=0, Total=272 [2020-04-18 19:53:17,119 INFO L87 Difference]: Start difference. First operand 1740 states and 5343 transitions. Second operand 9 states. [2020-04-18 19:53:17,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 19:53:17,251 INFO L93 Difference]: Finished difference Result 1389 states and 4110 transitions. [2020-04-18 19:53:17,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-04-18 19:53:17,252 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 43 [2020-04-18 19:53:17,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 19:53:17,258 INFO L225 Difference]: With dead ends: 1389 [2020-04-18 19:53:17,258 INFO L226 Difference]: Without dead ends: 957 [2020-04-18 19:53:17,259 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=113, Invalid=229, Unknown=0, NotChecked=0, Total=342 [2020-04-18 19:53:17,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 957 states. [2020-04-18 19:53:17,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 957 to 957. [2020-04-18 19:53:17,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 957 states. [2020-04-18 19:53:17,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 957 states to 957 states and 2733 transitions. [2020-04-18 19:53:17,284 INFO L78 Accepts]: Start accepts. Automaton has 957 states and 2733 transitions. Word has length 43 [2020-04-18 19:53:17,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 19:53:17,284 INFO L479 AbstractCegarLoop]: Abstraction has 957 states and 2733 transitions. [2020-04-18 19:53:17,284 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-04-18 19:53:17,285 INFO L276 IsEmpty]: Start isEmpty. Operand 957 states and 2733 transitions. [2020-04-18 19:53:17,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-04-18 19:53:17,287 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 19:53:17,287 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 19:53:17,288 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 19:53:17,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 19:53:17,288 INFO L82 PathProgramCache]: Analyzing trace with hash 755815284, now seen corresponding path program 1 times [2020-04-18 19:53:17,288 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 19:53:17,288 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [2076340673] [2020-04-18 19:53:17,291 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 19:53:17,329 INFO L259 McrAutomatonBuilder]: Finished intersection with 1416 states and 4511 transitions. [2020-04-18 19:53:17,339 INFO L276 IsEmpty]: Start isEmpty. Operand 1416 states. [2020-04-18 19:53:17,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-04-18 19:53:17,344 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 19:53:17,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 19:53:17,344 INFO L82 PathProgramCache]: Analyzing trace with hash -151719176, now seen corresponding path program 2 times [2020-04-18 19:53:17,345 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 19:53:17,345 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1763763718] [2020-04-18 19:53:17,345 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 19:53:17,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 19:53:17,442 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 19:53:17,443 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1763763718] [2020-04-18 19:53:17,443 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 19:53:17,444 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-04-18 19:53:17,444 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 19:53:17,448 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 19:53:17,474 INFO L259 McrAutomatonBuilder]: Finished intersection with 189 states and 380 transitions. [2020-04-18 19:53:17,474 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 19:53:17,524 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 4 times. [2020-04-18 19:53:17,524 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-04-18 19:53:17,524 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-04-18 19:53:17,525 INFO L87 Difference]: Start difference. First operand 1416 states. Second operand 7 states. [2020-04-18 19:53:17,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 19:53:17,781 INFO L93 Difference]: Finished difference Result 1936 states and 5969 transitions. [2020-04-18 19:53:17,782 INFO L276 IsEmpty]: Start isEmpty. Operand 1936 states and 5969 transitions. [2020-04-18 19:53:17,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-04-18 19:53:17,788 INFO L105 Mcr]: ---- MCR iteration 1 ---- [2020-04-18 19:53:17,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 19:53:17,788 INFO L82 PathProgramCache]: Analyzing trace with hash -325708810, now seen corresponding path program 3 times [2020-04-18 19:53:17,789 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 19:53:17,789 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [615127514] [2020-04-18 19:53:17,789 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 19:53:17,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 19:53:17,953 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 19:53:17,953 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [615127514] [2020-04-18 19:53:17,953 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 19:53:17,954 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-04-18 19:53:17,954 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 19:53:17,958 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 19:53:17,986 INFO L259 McrAutomatonBuilder]: Finished intersection with 179 states and 358 transitions. [2020-04-18 19:53:17,986 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 19:53:18,150 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 11 times. [2020-04-18 19:53:18,150 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-04-18 19:53:18,151 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=337, Unknown=0, NotChecked=0, Total=420 [2020-04-18 19:53:18,151 INFO L87 Difference]: Start difference. First operand 1936 states and 5969 transitions. Second operand 9 states. [2020-04-18 19:53:18,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 19:53:18,570 INFO L93 Difference]: Finished difference Result 1956 states and 5987 transitions. [2020-04-18 19:53:18,571 INFO L276 IsEmpty]: Start isEmpty. Operand 1956 states and 5987 transitions. [2020-04-18 19:53:18,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-04-18 19:53:18,576 INFO L105 Mcr]: ---- MCR iteration 2 ---- [2020-04-18 19:53:18,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 19:53:18,577 INFO L82 PathProgramCache]: Analyzing trace with hash 287322360, now seen corresponding path program 4 times [2020-04-18 19:53:18,577 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 19:53:18,577 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [507887261] [2020-04-18 19:53:18,577 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 19:53:18,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 19:53:18,686 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 19:53:18,687 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [507887261] [2020-04-18 19:53:18,687 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 19:53:18,687 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-04-18 19:53:18,688 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 19:53:18,691 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 19:53:18,735 INFO L259 McrAutomatonBuilder]: Finished intersection with 277 states and 632 transitions. [2020-04-18 19:53:18,735 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 19:53:18,910 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 31 times. [2020-04-18 19:53:18,911 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-04-18 19:53:18,912 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=216, Invalid=1044, Unknown=0, NotChecked=0, Total=1260 [2020-04-18 19:53:18,912 INFO L87 Difference]: Start difference. First operand 1956 states and 5987 transitions. Second operand 11 states. [2020-04-18 19:53:20,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 19:53:20,445 INFO L93 Difference]: Finished difference Result 3428 states and 9987 transitions. [2020-04-18 19:53:20,446 INFO L276 IsEmpty]: Start isEmpty. Operand 3428 states and 9987 transitions. [2020-04-18 19:53:20,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-04-18 19:53:20,453 INFO L105 Mcr]: ---- MCR iteration 3 ---- [2020-04-18 19:53:20,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 19:53:20,453 INFO L82 PathProgramCache]: Analyzing trace with hash 1006505336, now seen corresponding path program 5 times [2020-04-18 19:53:20,453 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 19:53:20,454 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [861442075] [2020-04-18 19:53:20,454 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 19:53:20,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 19:53:20,596 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 19:53:20,597 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [861442075] [2020-04-18 19:53:20,597 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 19:53:20,597 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-04-18 19:53:20,597 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 19:53:20,601 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 19:53:20,662 INFO L259 McrAutomatonBuilder]: Finished intersection with 387 states and 984 transitions. [2020-04-18 19:53:20,663 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 19:53:20,785 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 43 times. [2020-04-18 19:53:20,786 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-04-18 19:53:20,787 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=595, Invalid=3311, Unknown=0, NotChecked=0, Total=3906 [2020-04-18 19:53:20,787 INFO L87 Difference]: Start difference. First operand 3428 states and 9987 transitions. Second operand 12 states. [2020-04-18 19:53:20,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 19:53:20,978 INFO L93 Difference]: Finished difference Result 3904 states and 11173 transitions. [2020-04-18 19:53:20,978 INFO L276 IsEmpty]: Start isEmpty. Operand 3904 states and 11173 transitions. [2020-04-18 19:53:20,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-04-18 19:53:20,986 INFO L105 Mcr]: ---- MCR iteration 4 ---- [2020-04-18 19:53:20,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 19:53:20,987 INFO L82 PathProgramCache]: Analyzing trace with hash -543794384, now seen corresponding path program 6 times [2020-04-18 19:53:20,987 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 19:53:20,987 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [939605380] [2020-04-18 19:53:20,987 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 19:53:20,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 19:53:21,081 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 19:53:21,081 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [939605380] [2020-04-18 19:53:21,082 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 19:53:21,082 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-04-18 19:53:21,082 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 19:53:21,086 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 19:53:21,131 INFO L259 McrAutomatonBuilder]: Finished intersection with 260 states and 588 transitions. [2020-04-18 19:53:21,131 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 19:53:21,199 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 27 times. [2020-04-18 19:53:21,199 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-04-18 19:53:21,201 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=693, Invalid=3999, Unknown=0, NotChecked=0, Total=4692 [2020-04-18 19:53:21,201 INFO L87 Difference]: Start difference. First operand 3904 states and 11173 transitions. Second operand 8 states. [2020-04-18 19:53:21,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 19:53:21,544 INFO L93 Difference]: Finished difference Result 5410 states and 15120 transitions. [2020-04-18 19:53:21,545 INFO L276 IsEmpty]: Start isEmpty. Operand 5410 states and 15120 transitions. [2020-04-18 19:53:21,554 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 19:53:21,555 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [2076340673] [2020-04-18 19:53:21,555 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 19:53:21,556 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-04-18 19:53:21,556 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [2076340673] [2020-04-18 19:53:21,556 INFO L459 AbstractCegarLoop]: Interpolant automaton has 23 states [2020-04-18 19:53:21,556 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 19:53:21,557 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2020-04-18 19:53:21,559 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=841, Invalid=5165, Unknown=0, NotChecked=0, Total=6006 [2020-04-18 19:53:21,559 INFO L87 Difference]: Start difference. First operand 957 states and 2733 transitions. Second operand 23 states. [2020-04-18 19:53:22,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 19:53:22,885 INFO L93 Difference]: Finished difference Result 1338 states and 3844 transitions. [2020-04-18 19:53:22,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2020-04-18 19:53:22,885 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 47 [2020-04-18 19:53:22,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 19:53:22,886 INFO L225 Difference]: With dead ends: 1338 [2020-04-18 19:53:22,886 INFO L226 Difference]: Without dead ends: 0 [2020-04-18 19:53:22,889 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 479 GetRequests, 372 SyntacticMatches, 1 SemanticMatches, 106 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3951 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=1668, Invalid=9888, Unknown=0, NotChecked=0, Total=11556 [2020-04-18 19:53:22,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-04-18 19:53:22,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-04-18 19:53:22,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-04-18 19:53:22,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-04-18 19:53:22,890 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 47 [2020-04-18 19:53:22,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 19:53:22,891 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-04-18 19:53:22,891 INFO L480 AbstractCegarLoop]: Interpolant automaton has 23 states. [2020-04-18 19:53:22,891 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-04-18 19:53:22,891 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 19:53:22,896 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.04 07:53:22 BasicIcfg [2020-04-18 19:53:22,896 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-04-18 19:53:22,899 INFO L168 Benchmark]: Toolchain (without parser) took 12009.42 ms. Allocated memory was 138.9 MB in the beginning and 434.6 MB in the end (delta: 295.7 MB). Free memory was 101.0 MB in the beginning and 221.9 MB in the end (delta: -120.9 MB). Peak memory consumption was 174.8 MB. Max. memory is 7.1 GB. [2020-04-18 19:53:22,900 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 138.9 MB. Free memory was 120.8 MB in the beginning and 120.6 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2020-04-18 19:53:22,901 INFO L168 Benchmark]: CACSL2BoogieTranslator took 718.27 ms. Allocated memory was 138.9 MB in the beginning and 202.4 MB in the end (delta: 63.4 MB). Free memory was 99.0 MB in the beginning and 159.4 MB in the end (delta: -60.4 MB). Peak memory consumption was 24.5 MB. Max. memory is 7.1 GB. [2020-04-18 19:53:22,901 INFO L168 Benchmark]: Boogie Procedure Inliner took 50.02 ms. Allocated memory is still 202.4 MB. Free memory was 159.4 MB in the beginning and 156.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. [2020-04-18 19:53:22,902 INFO L168 Benchmark]: Boogie Preprocessor took 27.40 ms. Allocated memory is still 202.4 MB. Free memory was 156.8 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 19:53:22,903 INFO L168 Benchmark]: RCFGBuilder took 583.69 ms. Allocated memory is still 202.4 MB. Free memory was 155.4 MB in the beginning and 133.5 MB in the end (delta: 22.0 MB). Peak memory consumption was 22.0 MB. Max. memory is 7.1 GB. [2020-04-18 19:53:22,904 INFO L168 Benchmark]: TraceAbstraction took 10606.13 ms. Allocated memory was 202.4 MB in the beginning and 434.6 MB in the end (delta: 232.3 MB). Free memory was 133.5 MB in the beginning and 221.9 MB in the end (delta: -88.4 MB). Peak memory consumption was 143.9 MB. Max. memory is 7.1 GB. [2020-04-18 19:53:22,908 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 138.9 MB. Free memory was 120.8 MB in the beginning and 120.6 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 718.27 ms. Allocated memory was 138.9 MB in the beginning and 202.4 MB in the end (delta: 63.4 MB). Free memory was 99.0 MB in the beginning and 159.4 MB in the end (delta: -60.4 MB). Peak memory consumption was 24.5 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 50.02 ms. Allocated memory is still 202.4 MB. Free memory was 159.4 MB in the beginning and 156.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 27.40 ms. Allocated memory is still 202.4 MB. Free memory was 156.8 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 583.69 ms. Allocated memory is still 202.4 MB. Free memory was 155.4 MB in the beginning and 133.5 MB in the end (delta: 22.0 MB). Peak memory consumption was 22.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 10606.13 ms. Allocated memory was 202.4 MB in the beginning and 434.6 MB in the end (delta: 232.3 MB). Free memory was 133.5 MB in the beginning and 221.9 MB in the end (delta: -88.4 MB). Peak memory consumption was 143.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 7]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 68 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 10.4s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 2.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.4s, HoareTripleCheckerStatistics: 520 SDtfs, 1447 SDslu, 2534 SDs, 0 SdLazy, 528 SolverSat, 157 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 769 GetRequests, 600 SyntacticMatches, 1 SemanticMatches, 168 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4060 ImplicationChecksByTransitivity, 4.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=7268occurred 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: 0.5s AutomataMinimizationTime, 6 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...