/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/safe015_pso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-b981219 [2020-04-18 19:33:05,645 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-04-18 19:33:05,647 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-04-18 19:33:05,664 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-04-18 19:33:05,664 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-04-18 19:33:05,666 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-04-18 19:33:05,668 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-04-18 19:33:05,679 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-04-18 19:33:05,680 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-04-18 19:33:05,681 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-04-18 19:33:05,682 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-04-18 19:33:05,683 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-04-18 19:33:05,684 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-04-18 19:33:05,684 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-04-18 19:33:05,685 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-04-18 19:33:05,686 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-04-18 19:33:05,687 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-04-18 19:33:05,688 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-04-18 19:33:05,689 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-04-18 19:33:05,691 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-04-18 19:33:05,693 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-04-18 19:33:05,694 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-04-18 19:33:05,695 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-04-18 19:33:05,695 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-04-18 19:33:05,697 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-04-18 19:33:05,698 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-04-18 19:33:05,698 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-04-18 19:33:05,698 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-04-18 19:33:05,699 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-04-18 19:33:05,700 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-04-18 19:33:05,700 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-04-18 19:33:05,701 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-04-18 19:33:05,701 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-04-18 19:33:05,702 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-04-18 19:33:05,703 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-04-18 19:33:05,703 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-04-18 19:33:05,704 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-04-18 19:33:05,704 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-04-18 19:33:05,704 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-04-18 19:33:05,705 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-04-18 19:33:05,706 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-04-18 19:33:05,707 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 19:33:05,725 INFO L113 SettingsManager]: Loading preferences was successful [2020-04-18 19:33:05,727 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-04-18 19:33:05,728 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-04-18 19:33:05,728 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-04-18 19:33:05,729 INFO L138 SettingsManager]: * Use SBE=true [2020-04-18 19:33:05,729 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-04-18 19:33:05,729 INFO L138 SettingsManager]: * sizeof long=4 [2020-04-18 19:33:05,729 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-04-18 19:33:05,729 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-04-18 19:33:05,730 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-04-18 19:33:05,730 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-04-18 19:33:05,730 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-04-18 19:33:05,730 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-04-18 19:33:05,730 INFO L138 SettingsManager]: * sizeof long double=12 [2020-04-18 19:33:05,730 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-04-18 19:33:05,731 INFO L138 SettingsManager]: * Use constant arrays=true [2020-04-18 19:33:05,731 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-04-18 19:33:05,732 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-04-18 19:33:05,732 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-04-18 19:33:05,733 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-04-18 19:33:05,733 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-04-18 19:33:05,733 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-04-18 19:33:05,733 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-04-18 19:33:05,734 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-04-18 19:33:05,734 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-04-18 19:33:05,734 INFO L138 SettingsManager]: * Trace refinement strategy=MCR [2020-04-18 19:33:05,734 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-04-18 19:33:05,734 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2020-04-18 19:33:05,735 INFO L138 SettingsManager]: * Trace refinement strategy used in MCR=CAMEL [2020-04-18 19:33:05,735 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-04-18 19:33:05,736 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-04-18 19:33:06,011 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-04-18 19:33:06,022 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-04-18 19:33:06,026 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-04-18 19:33:06,027 INFO L271 PluginConnector]: Initializing CDTParser... [2020-04-18 19:33:06,027 INFO L275 PluginConnector]: CDTParser initialized [2020-04-18 19:33:06,028 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe015_pso.opt.i [2020-04-18 19:33:06,092 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3c92fb383/0ae1d7eda70549228ec434bdcf7b2eb7/FLAGc72f48deb [2020-04-18 19:33:06,621 INFO L306 CDTParser]: Found 1 translation units. [2020-04-18 19:33:06,622 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe015_pso.opt.i [2020-04-18 19:33:06,638 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3c92fb383/0ae1d7eda70549228ec434bdcf7b2eb7/FLAGc72f48deb [2020-04-18 19:33:06,875 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3c92fb383/0ae1d7eda70549228ec434bdcf7b2eb7 [2020-04-18 19:33:06,884 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-04-18 19:33:06,902 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-04-18 19:33:06,904 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-04-18 19:33:06,904 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-04-18 19:33:06,908 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-04-18 19:33:06,909 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 07:33:06" (1/1) ... [2020-04-18 19:33:06,912 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e69f865 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:33:06, skipping insertion in model container [2020-04-18 19:33:06,912 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 07:33:06" (1/1) ... [2020-04-18 19:33:06,921 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-04-18 19:33:06,988 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-04-18 19:33:07,471 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-04-18 19:33:07,484 INFO L203 MainTranslator]: Completed pre-run [2020-04-18 19:33:07,562 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-04-18 19:33:07,639 INFO L208 MainTranslator]: Completed translation [2020-04-18 19:33:07,639 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:33:07 WrapperNode [2020-04-18 19:33:07,640 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-04-18 19:33:07,641 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-04-18 19:33:07,641 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-04-18 19:33:07,641 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-04-18 19:33:07,651 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:33:07" (1/1) ... [2020-04-18 19:33:07,689 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:33:07" (1/1) ... [2020-04-18 19:33:07,714 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-04-18 19:33:07,714 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-04-18 19:33:07,714 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-04-18 19:33:07,714 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-04-18 19:33:07,725 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:33:07" (1/1) ... [2020-04-18 19:33:07,725 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:33:07" (1/1) ... [2020-04-18 19:33:07,728 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:33:07" (1/1) ... [2020-04-18 19:33:07,729 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:33:07" (1/1) ... [2020-04-18 19:33:07,735 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:33:07" (1/1) ... [2020-04-18 19:33:07,737 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:33:07" (1/1) ... [2020-04-18 19:33:07,742 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:33:07" (1/1) ... [2020-04-18 19:33:07,745 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-04-18 19:33:07,746 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-04-18 19:33:07,746 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-04-18 19:33:07,746 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-04-18 19:33:07,748 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:33:07" (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 19:33:07,815 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-04-18 19:33:07,815 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-04-18 19:33:07,815 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-04-18 19:33:07,816 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-04-18 19:33:07,816 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-04-18 19:33:07,816 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-04-18 19:33:07,816 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-04-18 19:33:07,816 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-04-18 19:33:07,817 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-04-18 19:33:07,817 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-04-18 19:33:07,817 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-04-18 19:33:07,817 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-04-18 19:33:07,817 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-04-18 19:33:07,819 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 19:33:08,214 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-04-18 19:33:08,215 INFO L295 CfgBuilder]: Removed 8 assume(true) statements. [2020-04-18 19:33:08,220 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 07:33:08 BoogieIcfgContainer [2020-04-18 19:33:08,220 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-04-18 19:33:08,221 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-04-18 19:33:08,222 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-04-18 19:33:08,225 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-04-18 19:33:08,226 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.04 07:33:06" (1/3) ... [2020-04-18 19:33:08,227 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1bc026ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 07:33:08, skipping insertion in model container [2020-04-18 19:33:08,227 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:33:07" (2/3) ... [2020-04-18 19:33:08,227 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1bc026ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 07:33:08, skipping insertion in model container [2020-04-18 19:33:08,228 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 07:33:08" (3/3) ... [2020-04-18 19:33:08,229 INFO L109 eAbstractionObserver]: Analyzing ICFG safe015_pso.opt.i [2020-04-18 19:33:08,240 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-04-18 19:33:08,240 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-04-18 19:33:08,246 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-04-18 19:33:08,248 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-04-18 19:33:08,275 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:33:08,276 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:33:08,276 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:33:08,277 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:33:08,277 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:33:08,278 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:33:08,278 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:33:08,278 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:33:08,279 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:33:08,279 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:33:08,279 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:33:08,280 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:33:08,280 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:33:08,280 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:33:08,281 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:33:08,281 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:33:08,281 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:33:08,282 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:33:08,286 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:33:08,286 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:33:08,287 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:33:08,287 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:33:08,293 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:33:08,294 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:33:08,294 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:33:08,295 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:33:08,305 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:33:08,305 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:33:08,306 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:33:08,306 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:33:08,325 INFO L251 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-04-18 19:33:08,346 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-04-18 19:33:08,346 INFO L376 AbstractCegarLoop]: Hoare is true [2020-04-18 19:33:08,346 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-04-18 19:33:08,346 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-04-18 19:33:08,347 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-04-18 19:33:08,347 INFO L380 AbstractCegarLoop]: Difference is false [2020-04-18 19:33:08,347 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-04-18 19:33:08,347 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-04-18 19:33:08,374 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 77 places, 69 transitions, 153 flow [2020-04-18 19:33:08,849 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 8471 states. [2020-04-18 19:33:08,853 INFO L276 IsEmpty]: Start isEmpty. Operand 8471 states. [2020-04-18 19:33:08,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-04-18 19:33:08,888 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 19:33:08,890 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] [2020-04-18 19:33:08,890 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 19:33:08,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 19:33:08,897 INFO L82 PathProgramCache]: Analyzing trace with hash 1532593683, now seen corresponding path program 1 times [2020-04-18 19:33:08,904 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 19:33:08,905 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [1460667843] [2020-04-18 19:33:08,919 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 19:33:08,935 INFO L259 McrAutomatonBuilder]: Finished intersection with 36 states and 35 transitions. [2020-04-18 19:33:08,937 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states. [2020-04-18 19:33:08,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-04-18 19:33:08,938 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 19:33:08,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 19:33:08,939 INFO L82 PathProgramCache]: Analyzing trace with hash 1532593683, now seen corresponding path program 2 times [2020-04-18 19:33:08,943 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 19:33:08,943 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [447173219] [2020-04-18 19:33:08,944 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 19:33:09,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 19:33:09,493 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 19:33:09,494 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [447173219] [2020-04-18 19:33:09,495 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 19:33:09,495 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-04-18 19:33:09,497 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 19:33:09,502 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 19:33:09,514 INFO L259 McrAutomatonBuilder]: Finished intersection with 36 states and 35 transitions. [2020-04-18 19:33:09,515 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 19:33:09,584 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times. [2020-04-18 19:33:09,588 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-04-18 19:33:09,589 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-04-18 19:33:09,591 INFO L87 Difference]: Start difference. First operand 36 states. Second operand 7 states. [2020-04-18 19:33:09,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 19:33:09,689 INFO L93 Difference]: Finished difference Result 36 states and 35 transitions. [2020-04-18 19:33:09,689 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 35 transitions. [2020-04-18 19:33:09,690 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 19:33:09,691 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [1460667843] [2020-04-18 19:33:09,691 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 19:33:09,692 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-04-18 19:33:09,692 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [1460667843] [2020-04-18 19:33:09,693 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-04-18 19:33:09,694 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 19:33:09,699 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-04-18 19:33:09,699 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2020-04-18 19:33:09,700 INFO L87 Difference]: Start difference. First operand 8471 states. Second operand 7 states. [2020-04-18 19:33:10,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 19:33:10,352 INFO L93 Difference]: Finished difference Result 18203 states and 62568 transitions. [2020-04-18 19:33:10,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-04-18 19:33:10,355 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 35 [2020-04-18 19:33:10,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 19:33:10,437 INFO L225 Difference]: With dead ends: 18203 [2020-04-18 19:33:10,437 INFO L226 Difference]: Without dead ends: 5701 [2020-04-18 19:33:10,442 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2020-04-18 19:33:10,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5701 states. [2020-04-18 19:33:10,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5701 to 4693. [2020-04-18 19:33:10,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4693 states. [2020-04-18 19:33:10,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4693 states to 4693 states and 15602 transitions. [2020-04-18 19:33:10,876 INFO L78 Accepts]: Start accepts. Automaton has 4693 states and 15602 transitions. Word has length 35 [2020-04-18 19:33:10,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 19:33:10,878 INFO L479 AbstractCegarLoop]: Abstraction has 4693 states and 15602 transitions. [2020-04-18 19:33:10,878 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-04-18 19:33:10,878 INFO L276 IsEmpty]: Start isEmpty. Operand 4693 states and 15602 transitions. [2020-04-18 19:33:10,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-04-18 19:33:10,890 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 19:33:10,890 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 19:33:10,891 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 19:33:10,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 19:33:10,892 INFO L82 PathProgramCache]: Analyzing trace with hash 1078623240, now seen corresponding path program 1 times [2020-04-18 19:33:10,892 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 19:33:10,892 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [1222633222] [2020-04-18 19:33:10,894 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 19:33:10,896 INFO L259 McrAutomatonBuilder]: Finished intersection with 87 states and 134 transitions. [2020-04-18 19:33:10,897 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states. [2020-04-18 19:33:10,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-04-18 19:33:10,898 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 19:33:10,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 19:33:10,899 INFO L82 PathProgramCache]: Analyzing trace with hash 1078623240, now seen corresponding path program 2 times [2020-04-18 19:33:10,899 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 19:33:10,900 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1650126758] [2020-04-18 19:33:10,900 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 19:33:10,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 19:33:11,077 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 19:33:11,078 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1650126758] [2020-04-18 19:33:11,078 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 19:33:11,078 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-04-18 19:33:11,079 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 19:33:11,083 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 19:33:11,092 INFO L259 McrAutomatonBuilder]: Finished intersection with 69 states and 98 transitions. [2020-04-18 19:33:11,093 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 19:33:11,248 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 5 times. [2020-04-18 19:33:11,249 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-04-18 19:33:11,249 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-04-18 19:33:11,249 INFO L87 Difference]: Start difference. First operand 87 states. Second operand 8 states. [2020-04-18 19:33:11,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 19:33:11,328 INFO L93 Difference]: Finished difference Result 87 states and 134 transitions. [2020-04-18 19:33:11,329 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 134 transitions. [2020-04-18 19:33:11,329 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 19:33:11,330 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [1222633222] [2020-04-18 19:33:11,330 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 19:33:11,330 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-04-18 19:33:11,330 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [1222633222] [2020-04-18 19:33:11,331 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-04-18 19:33:11,331 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 19:33:11,331 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-04-18 19:33:11,332 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-04-18 19:33:11,332 INFO L87 Difference]: Start difference. First operand 4693 states and 15602 transitions. Second operand 8 states. [2020-04-18 19:33:11,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 19:33:11,728 INFO L93 Difference]: Finished difference Result 6869 states and 22561 transitions. [2020-04-18 19:33:11,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-04-18 19:33:11,730 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 38 [2020-04-18 19:33:11,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 19:33:11,770 INFO L225 Difference]: With dead ends: 6869 [2020-04-18 19:33:11,770 INFO L226 Difference]: Without dead ends: 5417 [2020-04-18 19:33:11,774 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=83, Invalid=157, Unknown=0, NotChecked=0, Total=240 [2020-04-18 19:33:11,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5417 states. [2020-04-18 19:33:12,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5417 to 4475. [2020-04-18 19:33:12,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4475 states. [2020-04-18 19:33:12,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4475 states to 4475 states and 14788 transitions. [2020-04-18 19:33:12,064 INFO L78 Accepts]: Start accepts. Automaton has 4475 states and 14788 transitions. Word has length 38 [2020-04-18 19:33:12,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 19:33:12,064 INFO L479 AbstractCegarLoop]: Abstraction has 4475 states and 14788 transitions. [2020-04-18 19:33:12,064 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-04-18 19:33:12,064 INFO L276 IsEmpty]: Start isEmpty. Operand 4475 states and 14788 transitions. [2020-04-18 19:33:12,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2020-04-18 19:33:12,079 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 19:33:12,079 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] [2020-04-18 19:33:12,080 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 19:33:12,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 19:33:12,081 INFO L82 PathProgramCache]: Analyzing trace with hash 1457479407, now seen corresponding path program 1 times [2020-04-18 19:33:12,082 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 19:33:12,082 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [1373827356] [2020-04-18 19:33:12,084 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 19:33:12,088 INFO L259 McrAutomatonBuilder]: Finished intersection with 180 states and 383 transitions. [2020-04-18 19:33:12,091 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states. [2020-04-18 19:33:12,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2020-04-18 19:33:12,092 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 19:33:12,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 19:33:12,093 INFO L82 PathProgramCache]: Analyzing trace with hash -703839437, now seen corresponding path program 2 times [2020-04-18 19:33:12,093 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 19:33:12,093 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1611551880] [2020-04-18 19:33:12,093 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 19:33:12,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 19:33:12,280 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 19:33:12,280 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1611551880] [2020-04-18 19:33:12,281 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 19:33:12,281 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-04-18 19:33:12,281 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 19:33:12,285 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 19:33:12,300 INFO L259 McrAutomatonBuilder]: Finished intersection with 132 states and 263 transitions. [2020-04-18 19:33:12,301 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 19:33:12,426 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 13 times. [2020-04-18 19:33:12,427 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-04-18 19:33:12,427 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-04-18 19:33:12,427 INFO L87 Difference]: Start difference. First operand 180 states. Second operand 9 states. [2020-04-18 19:33:12,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 19:33:12,514 INFO L93 Difference]: Finished difference Result 180 states and 383 transitions. [2020-04-18 19:33:12,514 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 383 transitions. [2020-04-18 19:33:12,514 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 19:33:12,515 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [1373827356] [2020-04-18 19:33:12,518 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 19:33:12,518 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-04-18 19:33:12,519 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [1373827356] [2020-04-18 19:33:12,519 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-04-18 19:33:12,519 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 19:33:12,519 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-04-18 19:33:12,520 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2020-04-18 19:33:12,520 INFO L87 Difference]: Start difference. First operand 4475 states and 14788 transitions. Second operand 9 states. [2020-04-18 19:33:12,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 19:33:12,841 INFO L93 Difference]: Finished difference Result 7860 states and 25680 transitions. [2020-04-18 19:33:12,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-04-18 19:33:12,842 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 39 [2020-04-18 19:33:12,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 19:33:12,903 INFO L225 Difference]: With dead ends: 7860 [2020-04-18 19:33:12,903 INFO L226 Difference]: Without dead ends: 6292 [2020-04-18 19:33:12,904 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=90, Invalid=182, Unknown=0, NotChecked=0, Total=272 [2020-04-18 19:33:12,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6292 states. [2020-04-18 19:33:13,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6292 to 4467. [2020-04-18 19:33:13,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4467 states. [2020-04-18 19:33:13,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4467 states to 4467 states and 14758 transitions. [2020-04-18 19:33:13,617 INFO L78 Accepts]: Start accepts. Automaton has 4467 states and 14758 transitions. Word has length 39 [2020-04-18 19:33:13,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 19:33:13,618 INFO L479 AbstractCegarLoop]: Abstraction has 4467 states and 14758 transitions. [2020-04-18 19:33:13,618 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-04-18 19:33:13,618 INFO L276 IsEmpty]: Start isEmpty. Operand 4467 states and 14758 transitions. [2020-04-18 19:33:13,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2020-04-18 19:33:13,628 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 19:33:13,628 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 19:33:13,629 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 19:33:13,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 19:33:13,629 INFO L82 PathProgramCache]: Analyzing trace with hash -900130073, now seen corresponding path program 1 times [2020-04-18 19:33:13,629 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 19:33:13,630 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [1690184350] [2020-04-18 19:33:13,631 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 19:33:13,636 INFO L259 McrAutomatonBuilder]: Finished intersection with 231 states and 516 transitions. [2020-04-18 19:33:13,637 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states. [2020-04-18 19:33:13,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2020-04-18 19:33:13,639 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 19:33:13,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 19:33:13,639 INFO L82 PathProgramCache]: Analyzing trace with hash -900130073, now seen corresponding path program 2 times [2020-04-18 19:33:13,639 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 19:33:13,640 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1090971789] [2020-04-18 19:33:13,640 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 19:33:13,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 19:33:13,762 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 19:33:13,763 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1090971789] [2020-04-18 19:33:13,763 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 19:33:13,763 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-04-18 19:33:13,764 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 19:33:13,768 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 19:33:13,784 INFO L259 McrAutomatonBuilder]: Finished intersection with 165 states and 348 transitions. [2020-04-18 19:33:13,784 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 19:33:13,818 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times. [2020-04-18 19:33:13,818 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-04-18 19:33:13,819 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-04-18 19:33:13,819 INFO L87 Difference]: Start difference. First operand 231 states. Second operand 6 states. [2020-04-18 19:33:13,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 19:33:13,866 INFO L93 Difference]: Finished difference Result 231 states and 516 transitions. [2020-04-18 19:33:13,867 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 516 transitions. [2020-04-18 19:33:13,867 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 19:33:13,868 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [1690184350] [2020-04-18 19:33:13,868 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 19:33:13,868 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-04-18 19:33:13,868 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [1690184350] [2020-04-18 19:33:13,869 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-04-18 19:33:13,869 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 19:33:13,869 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-04-18 19:33:13,869 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-04-18 19:33:13,869 INFO L87 Difference]: Start difference. First operand 4467 states and 14758 transitions. Second operand 6 states. [2020-04-18 19:33:13,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 19:33:13,964 INFO L93 Difference]: Finished difference Result 4787 states and 15714 transitions. [2020-04-18 19:33:13,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-04-18 19:33:13,964 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 40 [2020-04-18 19:33:13,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 19:33:13,980 INFO L225 Difference]: With dead ends: 4787 [2020-04-18 19:33:13,980 INFO L226 Difference]: Without dead ends: 4227 [2020-04-18 19:33:13,981 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 38 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 19:33:13,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4227 states. [2020-04-18 19:33:14,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4227 to 3939. [2020-04-18 19:33:14,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3939 states. [2020-04-18 19:33:14,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3939 states to 3939 states and 12994 transitions. [2020-04-18 19:33:14,102 INFO L78 Accepts]: Start accepts. Automaton has 3939 states and 12994 transitions. Word has length 40 [2020-04-18 19:33:14,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 19:33:14,103 INFO L479 AbstractCegarLoop]: Abstraction has 3939 states and 12994 transitions. [2020-04-18 19:33:14,103 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-04-18 19:33:14,103 INFO L276 IsEmpty]: Start isEmpty. Operand 3939 states and 12994 transitions. [2020-04-18 19:33:14,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-04-18 19:33:14,113 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 19:33:14,113 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 19:33:14,113 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 19:33:14,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 19:33:14,114 INFO L82 PathProgramCache]: Analyzing trace with hash -246998388, now seen corresponding path program 1 times [2020-04-18 19:33:14,114 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 19:33:14,114 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [1827659688] [2020-04-18 19:33:14,116 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 19:33:14,124 INFO L259 McrAutomatonBuilder]: Finished intersection with 414 states and 1145 transitions. [2020-04-18 19:33:14,127 INFO L276 IsEmpty]: Start isEmpty. Operand 414 states. [2020-04-18 19:33:14,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-04-18 19:33:14,129 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 19:33:14,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 19:33:14,129 INFO L82 PathProgramCache]: Analyzing trace with hash -1554306252, now seen corresponding path program 2 times [2020-04-18 19:33:14,130 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 19:33:14,130 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [549720995] [2020-04-18 19:33:14,130 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 19:33:14,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 19:33:14,222 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 19:33:14,223 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [549720995] [2020-04-18 19:33:14,223 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 19:33:14,223 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-04-18 19:33:14,223 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 19:33:14,227 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 19:33:14,258 INFO L259 McrAutomatonBuilder]: Finished intersection with 216 states and 517 transitions. [2020-04-18 19:33:14,258 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 19:33:14,328 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 15 times. [2020-04-18 19:33:14,328 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-04-18 19:33:14,329 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-04-18 19:33:14,329 INFO L87 Difference]: Start difference. First operand 414 states. Second operand 8 states. [2020-04-18 19:33:14,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 19:33:14,530 INFO L93 Difference]: Finished difference Result 519 states and 1344 transitions. [2020-04-18 19:33:14,530 INFO L276 IsEmpty]: Start isEmpty. Operand 519 states and 1344 transitions. [2020-04-18 19:33:14,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-04-18 19:33:14,532 INFO L105 Mcr]: ---- MCR iteration 1 ---- [2020-04-18 19:33:14,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 19:33:14,534 INFO L82 PathProgramCache]: Analyzing trace with hash -1027819708, now seen corresponding path program 3 times [2020-04-18 19:33:14,534 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 19:33:14,534 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1679006940] [2020-04-18 19:33:14,535 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 19:33:14,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 19:33:14,699 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 19:33:14,699 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1679006940] [2020-04-18 19:33:14,700 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 19:33:14,700 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-04-18 19:33:14,700 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 19:33:14,705 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 19:33:14,733 INFO L259 McrAutomatonBuilder]: Finished intersection with 195 states and 455 transitions. [2020-04-18 19:33:14,733 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 19:33:14,792 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 19 times. [2020-04-18 19:33:14,792 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-04-18 19:33:14,793 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=206, Unknown=0, NotChecked=0, Total=306 [2020-04-18 19:33:14,793 INFO L87 Difference]: Start difference. First operand 519 states and 1344 transitions. Second operand 8 states. [2020-04-18 19:33:15,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 19:33:15,045 INFO L93 Difference]: Finished difference Result 537 states and 1371 transitions. [2020-04-18 19:33:15,045 INFO L276 IsEmpty]: Start isEmpty. Operand 537 states and 1371 transitions. [2020-04-18 19:33:15,047 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 19:33:15,048 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [1827659688] [2020-04-18 19:33:15,048 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 19:33:15,048 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-04-18 19:33:15,049 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [1827659688] [2020-04-18 19:33:15,049 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-04-18 19:33:15,049 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 19:33:15,049 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-04-18 19:33:15,050 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=185, Invalid=465, Unknown=0, NotChecked=0, Total=650 [2020-04-18 19:33:15,050 INFO L87 Difference]: Start difference. First operand 3939 states and 12994 transitions. Second operand 11 states. [2020-04-18 19:33:15,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 19:33:15,302 INFO L93 Difference]: Finished difference Result 7037 states and 22771 transitions. [2020-04-18 19:33:15,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-04-18 19:33:15,302 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 41 [2020-04-18 19:33:15,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 19:33:15,323 INFO L225 Difference]: With dead ends: 7037 [2020-04-18 19:33:15,323 INFO L226 Difference]: Without dead ends: 4904 [2020-04-18 19:33:15,324 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 178 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=224, Invalid=588, Unknown=0, NotChecked=0, Total=812 [2020-04-18 19:33:15,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4904 states. [2020-04-18 19:33:15,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4904 to 3656. [2020-04-18 19:33:15,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3656 states. [2020-04-18 19:33:15,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3656 states to 3656 states and 11936 transitions. [2020-04-18 19:33:15,442 INFO L78 Accepts]: Start accepts. Automaton has 3656 states and 11936 transitions. Word has length 41 [2020-04-18 19:33:15,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 19:33:15,443 INFO L479 AbstractCegarLoop]: Abstraction has 3656 states and 11936 transitions. [2020-04-18 19:33:15,443 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-04-18 19:33:15,443 INFO L276 IsEmpty]: Start isEmpty. Operand 3656 states and 11936 transitions. [2020-04-18 19:33:15,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-04-18 19:33:15,452 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 19:33:15,452 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 19:33:15,452 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 19:33:15,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 19:33:15,453 INFO L82 PathProgramCache]: Analyzing trace with hash 2076386273, now seen corresponding path program 1 times [2020-04-18 19:33:15,453 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 19:33:15,453 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [771086667] [2020-04-18 19:33:15,454 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 19:33:15,459 INFO L259 McrAutomatonBuilder]: Finished intersection with 243 states and 551 transitions. [2020-04-18 19:33:15,461 INFO L276 IsEmpty]: Start isEmpty. Operand 243 states. [2020-04-18 19:33:15,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-04-18 19:33:15,463 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 19:33:15,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 19:33:15,463 INFO L82 PathProgramCache]: Analyzing trace with hash -78306353, now seen corresponding path program 2 times [2020-04-18 19:33:15,464 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 19:33:15,464 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1526901611] [2020-04-18 19:33:15,464 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 19:33:15,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 19:33:15,554 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 19:33:15,555 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1526901611] [2020-04-18 19:33:15,555 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 19:33:15,555 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-04-18 19:33:15,556 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 19:33:15,559 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 19:33:15,571 INFO L259 McrAutomatonBuilder]: Finished intersection with 111 states and 197 transitions. [2020-04-18 19:33:15,572 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 19:33:15,605 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 4 times. [2020-04-18 19:33:15,606 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-04-18 19:33:15,606 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-04-18 19:33:15,606 INFO L87 Difference]: Start difference. First operand 243 states. Second operand 6 states. [2020-04-18 19:33:15,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 19:33:15,766 INFO L93 Difference]: Finished difference Result 337 states and 739 transitions. [2020-04-18 19:33:15,766 INFO L276 IsEmpty]: Start isEmpty. Operand 337 states and 739 transitions. [2020-04-18 19:33:15,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-04-18 19:33:15,768 INFO L105 Mcr]: ---- MCR iteration 1 ---- [2020-04-18 19:33:15,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 19:33:15,768 INFO L82 PathProgramCache]: Analyzing trace with hash 263203685, now seen corresponding path program 3 times [2020-04-18 19:33:15,769 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 19:33:15,769 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1374175199] [2020-04-18 19:33:15,769 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 19:33:15,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 19:33:15,880 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 19:33:15,880 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1374175199] [2020-04-18 19:33:15,881 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 19:33:15,881 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-04-18 19:33:15,881 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 19:33:15,885 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 19:33:15,900 INFO L259 McrAutomatonBuilder]: Finished intersection with 110 states and 195 transitions. [2020-04-18 19:33:15,901 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 19:33:15,924 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 7 times. [2020-04-18 19:33:15,924 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-04-18 19:33:15,924 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-04-18 19:33:15,924 INFO L87 Difference]: Start difference. First operand 337 states and 739 transitions. Second operand 7 states. [2020-04-18 19:33:16,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 19:33:16,096 INFO L93 Difference]: Finished difference Result 343 states and 744 transitions. [2020-04-18 19:33:16,096 INFO L276 IsEmpty]: Start isEmpty. Operand 343 states and 744 transitions. [2020-04-18 19:33:16,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-04-18 19:33:16,097 INFO L105 Mcr]: ---- MCR iteration 2 ---- [2020-04-18 19:33:16,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 19:33:16,097 INFO L82 PathProgramCache]: Analyzing trace with hash 51398341, now seen corresponding path program 4 times [2020-04-18 19:33:16,098 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 19:33:16,098 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [966010400] [2020-04-18 19:33:16,098 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 19:33:16,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 19:33:16,227 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 19:33:16,227 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [966010400] [2020-04-18 19:33:16,227 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 19:33:16,227 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-04-18 19:33:16,228 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 19:33:16,231 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 19:33:16,244 INFO L259 McrAutomatonBuilder]: Finished intersection with 107 states and 189 transitions. [2020-04-18 19:33:16,245 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 19:33:16,310 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 14 times. [2020-04-18 19:33:16,310 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-04-18 19:33:16,310 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=224, Unknown=0, NotChecked=0, Total=306 [2020-04-18 19:33:16,311 INFO L87 Difference]: Start difference. First operand 343 states and 744 transitions. Second operand 9 states. [2020-04-18 19:33:16,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 19:33:16,675 INFO L93 Difference]: Finished difference Result 417 states and 847 transitions. [2020-04-18 19:33:16,676 INFO L276 IsEmpty]: Start isEmpty. Operand 417 states and 847 transitions. [2020-04-18 19:33:16,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-04-18 19:33:16,677 INFO L105 Mcr]: ---- MCR iteration 3 ---- [2020-04-18 19:33:16,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 19:33:16,677 INFO L82 PathProgramCache]: Analyzing trace with hash 2076386273, now seen corresponding path program 5 times [2020-04-18 19:33:16,678 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 19:33:16,678 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1230670417] [2020-04-18 19:33:16,678 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 19:33:16,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 19:33:16,790 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 19:33:16,791 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1230670417] [2020-04-18 19:33:16,791 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 19:33:16,791 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-04-18 19:33:16,791 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 19:33:16,795 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 19:33:16,808 INFO L259 McrAutomatonBuilder]: Finished intersection with 117 states and 221 transitions. [2020-04-18 19:33:16,808 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 19:33:16,857 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 14 times. [2020-04-18 19:33:16,858 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-04-18 19:33:16,858 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=208, Invalid=662, Unknown=0, NotChecked=0, Total=870 [2020-04-18 19:33:16,859 INFO L87 Difference]: Start difference. First operand 417 states and 847 transitions. Second operand 8 states. [2020-04-18 19:33:17,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 19:33:17,130 INFO L93 Difference]: Finished difference Result 459 states and 908 transitions. [2020-04-18 19:33:17,130 INFO L276 IsEmpty]: Start isEmpty. Operand 459 states and 908 transitions. [2020-04-18 19:33:17,131 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 19:33:17,132 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [771086667] [2020-04-18 19:33:17,132 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 19:33:17,132 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-04-18 19:33:17,132 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [771086667] [2020-04-18 19:33:17,132 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-04-18 19:33:17,133 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 19:33:17,133 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-04-18 19:33:17,134 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=285, Invalid=1047, Unknown=0, NotChecked=0, Total=1332 [2020-04-18 19:33:17,134 INFO L87 Difference]: Start difference. First operand 3656 states and 11936 transitions. Second operand 12 states. [2020-04-18 19:33:17,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 19:33:17,315 INFO L93 Difference]: Finished difference Result 4716 states and 15155 transitions. [2020-04-18 19:33:17,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-04-18 19:33:17,315 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 41 [2020-04-18 19:33:17,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 19:33:17,323 INFO L225 Difference]: With dead ends: 4716 [2020-04-18 19:33:17,324 INFO L226 Difference]: Without dead ends: 2249 [2020-04-18 19:33:17,325 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 273 GetRequests, 234 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 424 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=313, Invalid=1327, Unknown=0, NotChecked=0, Total=1640 [2020-04-18 19:33:17,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2249 states. [2020-04-18 19:33:17,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2249 to 2057. [2020-04-18 19:33:17,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2057 states. [2020-04-18 19:33:17,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2057 states to 2057 states and 6375 transitions. [2020-04-18 19:33:17,383 INFO L78 Accepts]: Start accepts. Automaton has 2057 states and 6375 transitions. Word has length 41 [2020-04-18 19:33:17,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 19:33:17,384 INFO L479 AbstractCegarLoop]: Abstraction has 2057 states and 6375 transitions. [2020-04-18 19:33:17,384 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-04-18 19:33:17,384 INFO L276 IsEmpty]: Start isEmpty. Operand 2057 states and 6375 transitions. [2020-04-18 19:33:17,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2020-04-18 19:33:17,389 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 19:33:17,389 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] [2020-04-18 19:33:17,389 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 19:33:17,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 19:33:17,390 INFO L82 PathProgramCache]: Analyzing trace with hash 96261440, now seen corresponding path program 1 times [2020-04-18 19:33:17,390 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 19:33:17,390 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [553600254] [2020-04-18 19:33:17,392 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 19:33:17,405 INFO L259 McrAutomatonBuilder]: Finished intersection with 543 states and 1558 transitions. [2020-04-18 19:33:17,410 INFO L276 IsEmpty]: Start isEmpty. Operand 543 states. [2020-04-18 19:33:17,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2020-04-18 19:33:17,412 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 19:33:17,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 19:33:17,412 INFO L82 PathProgramCache]: Analyzing trace with hash -1211046424, now seen corresponding path program 2 times [2020-04-18 19:33:17,413 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 19:33:17,413 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [479508251] [2020-04-18 19:33:17,413 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 19:33:17,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 19:33:17,517 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 19:33:17,517 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [479508251] [2020-04-18 19:33:17,517 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 19:33:17,518 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-04-18 19:33:17,518 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 19:33:17,524 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 19:33:17,627 INFO L259 McrAutomatonBuilder]: Finished intersection with 270 states and 676 transitions. [2020-04-18 19:33:17,627 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 19:33:17,659 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 24 times. [2020-04-18 19:33:17,659 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-04-18 19:33:17,660 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-04-18 19:33:17,660 INFO L87 Difference]: Start difference. First operand 543 states. Second operand 6 states. [2020-04-18 19:33:17,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 19:33:17,698 INFO L93 Difference]: Finished difference Result 543 states and 1558 transitions. [2020-04-18 19:33:17,699 INFO L276 IsEmpty]: Start isEmpty. Operand 543 states and 1558 transitions. [2020-04-18 19:33:17,700 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 19:33:17,700 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [553600254] [2020-04-18 19:33:17,701 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 19:33:17,701 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-04-18 19:33:17,701 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [553600254] [2020-04-18 19:33:17,701 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-04-18 19:33:17,701 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 19:33:17,701 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-04-18 19:33:17,702 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-04-18 19:33:17,702 INFO L87 Difference]: Start difference. First operand 2057 states and 6375 transitions. Second operand 6 states. [2020-04-18 19:33:17,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 19:33:17,790 INFO L93 Difference]: Finished difference Result 2534 states and 7733 transitions. [2020-04-18 19:33:17,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-04-18 19:33:17,791 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 42 [2020-04-18 19:33:17,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 19:33:17,798 INFO L225 Difference]: With dead ends: 2534 [2020-04-18 19:33:17,798 INFO L226 Difference]: Without dead ends: 1838 [2020-04-18 19:33:17,798 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-04-18 19:33:17,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1838 states. [2020-04-18 19:33:17,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1838 to 1838. [2020-04-18 19:33:17,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1838 states. [2020-04-18 19:33:17,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1838 states to 1838 states and 5580 transitions. [2020-04-18 19:33:17,844 INFO L78 Accepts]: Start accepts. Automaton has 1838 states and 5580 transitions. Word has length 42 [2020-04-18 19:33:17,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 19:33:17,844 INFO L479 AbstractCegarLoop]: Abstraction has 1838 states and 5580 transitions. [2020-04-18 19:33:17,844 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-04-18 19:33:17,844 INFO L276 IsEmpty]: Start isEmpty. Operand 1838 states and 5580 transitions. [2020-04-18 19:33:17,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-04-18 19:33:17,848 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 19:33:17,848 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 19:33:17,849 INFO L427 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 19:33:17,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 19:33:17,849 INFO L82 PathProgramCache]: Analyzing trace with hash 1641822891, now seen corresponding path program 1 times [2020-04-18 19:33:17,849 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 19:33:17,849 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [656269159] [2020-04-18 19:33:17,851 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 19:33:17,867 INFO L259 McrAutomatonBuilder]: Finished intersection with 672 states and 1971 transitions. [2020-04-18 19:33:17,872 INFO L276 IsEmpty]: Start isEmpty. Operand 672 states. [2020-04-18 19:33:17,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-04-18 19:33:17,874 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 19:33:17,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 19:33:17,875 INFO L82 PathProgramCache]: Analyzing trace with hash 1007181547, now seen corresponding path program 2 times [2020-04-18 19:33:17,875 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 19:33:17,876 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [287311255] [2020-04-18 19:33:17,876 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 19:33:17,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 19:33:17,964 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 19:33:17,964 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [287311255] [2020-04-18 19:33:17,964 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 19:33:17,964 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-04-18 19:33:17,965 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 19:33:17,968 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 19:33:17,995 INFO L259 McrAutomatonBuilder]: Finished intersection with 210 states and 474 transitions. [2020-04-18 19:33:17,995 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 19:33:18,054 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 23 times. [2020-04-18 19:33:18,054 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-04-18 19:33:18,054 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-04-18 19:33:18,055 INFO L87 Difference]: Start difference. First operand 672 states. Second operand 8 states. [2020-04-18 19:33:18,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 19:33:18,156 INFO L93 Difference]: Finished difference Result 672 states and 1971 transitions. [2020-04-18 19:33:18,156 INFO L276 IsEmpty]: Start isEmpty. Operand 672 states and 1971 transitions. [2020-04-18 19:33:18,158 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 19:33:18,158 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [656269159] [2020-04-18 19:33:18,158 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 19:33:18,158 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-04-18 19:33:18,159 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [656269159] [2020-04-18 19:33:18,159 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-04-18 19:33:18,159 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 19:33:18,159 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-04-18 19:33:18,159 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=115, Unknown=0, NotChecked=0, Total=182 [2020-04-18 19:33:18,160 INFO L87 Difference]: Start difference. First operand 1838 states and 5580 transitions. Second operand 8 states. [2020-04-18 19:33:18,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 19:33:18,272 INFO L93 Difference]: Finished difference Result 1775 states and 5214 transitions. [2020-04-18 19:33:18,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-04-18 19:33:18,272 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 43 [2020-04-18 19:33:18,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 19:33:18,276 INFO L225 Difference]: With dead ends: 1775 [2020-04-18 19:33:18,276 INFO L226 Difference]: Without dead ends: 1227 [2020-04-18 19:33:18,276 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 63 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 19:33:18,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1227 states. [2020-04-18 19:33:18,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1227 to 1227. [2020-04-18 19:33:18,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1227 states. [2020-04-18 19:33:18,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1227 states to 1227 states and 3514 transitions. [2020-04-18 19:33:18,304 INFO L78 Accepts]: Start accepts. Automaton has 1227 states and 3514 transitions. Word has length 43 [2020-04-18 19:33:18,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 19:33:18,304 INFO L479 AbstractCegarLoop]: Abstraction has 1227 states and 3514 transitions. [2020-04-18 19:33:18,304 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-04-18 19:33:18,304 INFO L276 IsEmpty]: Start isEmpty. Operand 1227 states and 3514 transitions. [2020-04-18 19:33:18,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-04-18 19:33:18,307 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 19:33:18,307 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] [2020-04-18 19:33:18,307 INFO L427 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 19:33:18,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 19:33:18,308 INFO L82 PathProgramCache]: Analyzing trace with hash 1594703724, now seen corresponding path program 1 times [2020-04-18 19:33:18,308 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 19:33:18,308 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [1426701431] [2020-04-18 19:33:18,310 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 19:33:18,333 INFO L259 McrAutomatonBuilder]: Finished intersection with 1110 states and 3421 transitions. [2020-04-18 19:33:18,341 INFO L276 IsEmpty]: Start isEmpty. Operand 1110 states. [2020-04-18 19:33:18,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-04-18 19:33:18,345 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 19:33:18,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 19:33:18,345 INFO L82 PathProgramCache]: Analyzing trace with hash 287395860, now seen corresponding path program 2 times [2020-04-18 19:33:18,346 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 19:33:18,346 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1926988902] [2020-04-18 19:33:18,346 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 19:33:18,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 19:33:18,455 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 19:33:18,456 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1926988902] [2020-04-18 19:33:18,456 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 19:33:18,456 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-04-18 19:33:18,457 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 19:33:18,460 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 19:33:18,489 INFO L259 McrAutomatonBuilder]: Finished intersection with 182 states and 375 transitions. [2020-04-18 19:33:18,489 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 19:33:18,555 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 9 times. [2020-04-18 19:33:18,555 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-04-18 19:33:18,556 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-04-18 19:33:18,556 INFO L87 Difference]: Start difference. First operand 1110 states. Second operand 9 states. [2020-04-18 19:33:18,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 19:33:18,772 INFO L93 Difference]: Finished difference Result 1110 states and 3421 transitions. [2020-04-18 19:33:18,772 INFO L276 IsEmpty]: Start isEmpty. Operand 1110 states and 3421 transitions. [2020-04-18 19:33:18,775 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 19:33:18,775 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [1426701431] [2020-04-18 19:33:18,776 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 19:33:18,776 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-04-18 19:33:18,776 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [1426701431] [2020-04-18 19:33:18,776 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-04-18 19:33:18,776 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 19:33:18,777 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-04-18 19:33:18,777 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=111, Invalid=195, Unknown=0, NotChecked=0, Total=306 [2020-04-18 19:33:18,777 INFO L87 Difference]: Start difference. First operand 1227 states and 3514 transitions. Second operand 9 states. [2020-04-18 19:33:18,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 19:33:18,832 INFO L93 Difference]: Finished difference Result 795 states and 2191 transitions. [2020-04-18 19:33:18,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-04-18 19:33:18,833 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 45 [2020-04-18 19:33:18,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 19:33:18,833 INFO L225 Difference]: With dead ends: 795 [2020-04-18 19:33:18,833 INFO L226 Difference]: Without dead ends: 0 [2020-04-18 19:33:18,834 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=111, Invalid=195, Unknown=0, NotChecked=0, Total=306 [2020-04-18 19:33:18,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-04-18 19:33:18,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-04-18 19:33:18,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-04-18 19:33:18,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-04-18 19:33:18,835 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 45 [2020-04-18 19:33:18,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 19:33:18,835 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-04-18 19:33:18,835 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-04-18 19:33:18,835 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-04-18 19:33:18,836 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 19:33:18,840 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.04 07:33:18 BasicIcfg [2020-04-18 19:33:18,840 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-04-18 19:33:18,843 INFO L168 Benchmark]: Toolchain (without parser) took 11956.12 ms. Allocated memory was 137.4 MB in the beginning and 604.0 MB in the end (delta: 466.6 MB). Free memory was 99.7 MB in the beginning and 203.2 MB in the end (delta: -103.6 MB). Peak memory consumption was 363.0 MB. Max. memory is 7.1 GB. [2020-04-18 19:33:18,843 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 137.4 MB. Free memory was 119.2 MB in the beginning and 118.9 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-04-18 19:33:18,844 INFO L168 Benchmark]: CACSL2BoogieTranslator took 736.29 ms. Allocated memory was 137.4 MB in the beginning and 200.8 MB in the end (delta: 63.4 MB). Free memory was 97.8 MB in the beginning and 157.7 MB in the end (delta: -59.9 MB). Peak memory consumption was 24.2 MB. Max. memory is 7.1 GB. [2020-04-18 19:33:18,845 INFO L168 Benchmark]: Boogie Procedure Inliner took 73.25 ms. Allocated memory is still 200.8 MB. Free memory was 157.7 MB in the beginning and 155.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. [2020-04-18 19:33:18,846 INFO L168 Benchmark]: Boogie Preprocessor took 31.63 ms. Allocated memory is still 200.8 MB. Free memory was 155.6 MB in the beginning and 153.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. [2020-04-18 19:33:18,848 INFO L168 Benchmark]: RCFGBuilder took 474.02 ms. Allocated memory is still 200.8 MB. Free memory was 153.4 MB in the beginning and 131.6 MB in the end (delta: 21.8 MB). Peak memory consumption was 21.8 MB. Max. memory is 7.1 GB. [2020-04-18 19:33:18,849 INFO L168 Benchmark]: TraceAbstraction took 10619.12 ms. Allocated memory was 200.8 MB in the beginning and 604.0 MB in the end (delta: 403.2 MB). Free memory was 130.9 MB in the beginning and 203.2 MB in the end (delta: -72.3 MB). Peak memory consumption was 330.9 MB. Max. memory is 7.1 GB. [2020-04-18 19:33:18,852 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 137.4 MB. Free memory was 119.2 MB in the beginning and 118.9 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 736.29 ms. Allocated memory was 137.4 MB in the beginning and 200.8 MB in the end (delta: 63.4 MB). Free memory was 97.8 MB in the beginning and 157.7 MB in the end (delta: -59.9 MB). Peak memory consumption was 24.2 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 73.25 ms. Allocated memory is still 200.8 MB. Free memory was 157.7 MB in the beginning and 155.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 31.63 ms. Allocated memory is still 200.8 MB. Free memory was 155.6 MB in the beginning and 153.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 474.02 ms. Allocated memory is still 200.8 MB. Free memory was 153.4 MB in the beginning and 131.6 MB in the end (delta: 21.8 MB). Peak memory consumption was 21.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 10619.12 ms. Allocated memory was 200.8 MB in the beginning and 604.0 MB in the end (delta: 403.2 MB). Free memory was 130.9 MB in the beginning and 203.2 MB in the end (delta: -72.3 MB). Peak memory consumption was 330.9 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: 9, TraceHistogramMax: 1, AutomataDifference: 2.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.5s, HoareTripleCheckerStatistics: 882 SDtfs, 1688 SDslu, 3507 SDs, 0 SdLazy, 550 SolverSat, 101 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 847 GetRequests, 691 SyntacticMatches, 0 SemanticMatches, 156 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 763 ImplicationChecksByTransitivity, 2.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=8471occurred 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: 1.7s AutomataMinimizationTime, 9 MinimizatonAttempts, 5503 StatesRemovedByMinimization, 6 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...