/usr/bin/java -Xmx16000000000 -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/VMCAI2021_PN.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe035_pso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-11af1e5 [2020-10-11 18:47:01,664 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-11 18:47:01,668 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-11 18:47:01,704 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-11 18:47:01,704 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-11 18:47:01,712 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-11 18:47:01,715 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-11 18:47:01,719 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-11 18:47:01,721 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-11 18:47:01,724 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-11 18:47:01,725 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-11 18:47:01,726 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-11 18:47:01,726 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-11 18:47:01,729 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-11 18:47:01,731 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-11 18:47:01,732 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-11 18:47:01,733 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-11 18:47:01,734 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-11 18:47:01,736 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-11 18:47:01,744 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-11 18:47:01,746 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-11 18:47:01,747 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-11 18:47:01,748 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-11 18:47:01,749 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-11 18:47:01,760 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-11 18:47:01,762 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-11 18:47:01,762 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-11 18:47:01,763 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-11 18:47:01,764 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-11 18:47:01,764 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-11 18:47:01,764 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-11 18:47:01,768 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-11 18:47:01,769 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-11 18:47:01,769 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-11 18:47:01,770 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-11 18:47:01,770 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-11 18:47:01,771 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-11 18:47:01,771 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-11 18:47:01,771 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-11 18:47:01,776 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-11 18:47:01,777 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-11 18:47:01,779 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/VMCAI2021_PN.epf [2020-10-11 18:47:01,804 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-11 18:47:01,805 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-11 18:47:01,806 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-11 18:47:01,806 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-11 18:47:01,806 INFO L138 SettingsManager]: * Use SBE=true [2020-10-11 18:47:01,806 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-11 18:47:01,807 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-11 18:47:01,807 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-11 18:47:01,807 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-11 18:47:01,807 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-11 18:47:01,807 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-11 18:47:01,807 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-11 18:47:01,808 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-11 18:47:01,808 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-11 18:47:01,808 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-11 18:47:01,808 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-11 18:47:01,808 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-11 18:47:01,809 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-11 18:47:01,809 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-11 18:47:01,809 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-11 18:47:01,809 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-11 18:47:01,809 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-11 18:47:01,810 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-11 18:47:01,810 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-11 18:47:01,810 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-11 18:47:01,810 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-11 18:47:01,810 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-11 18:47:01,811 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2020-10-11 18:47:01,811 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2020-10-11 18:47:01,811 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-11 18:47:02,107 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-11 18:47:02,117 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-11 18:47:02,120 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-11 18:47:02,121 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-11 18:47:02,122 INFO L275 PluginConnector]: CDTParser initialized [2020-10-11 18:47:02,122 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe035_pso.opt.i [2020-10-11 18:47:02,194 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8daac22f4/eb46bc4dffc34833a15e4140f5e25234/FLAG765e35f22 [2020-10-11 18:47:02,694 INFO L306 CDTParser]: Found 1 translation units. [2020-10-11 18:47:02,694 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe035_pso.opt.i [2020-10-11 18:47:02,705 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8daac22f4/eb46bc4dffc34833a15e4140f5e25234/FLAG765e35f22 [2020-10-11 18:47:02,993 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8daac22f4/eb46bc4dffc34833a15e4140f5e25234 [2020-10-11 18:47:03,001 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-11 18:47:03,003 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-11 18:47:03,004 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-11 18:47:03,004 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-11 18:47:03,008 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-11 18:47:03,009 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 06:47:02" (1/1) ... [2020-10-11 18:47:03,011 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@201ec649 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:47:03, skipping insertion in model container [2020-10-11 18:47:03,011 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 06:47:02" (1/1) ... [2020-10-11 18:47:03,019 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-11 18:47:03,076 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-11 18:47:03,407 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-11 18:47:03,418 INFO L203 MainTranslator]: Completed pre-run [2020-10-11 18:47:03,578 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-11 18:47:03,678 INFO L208 MainTranslator]: Completed translation [2020-10-11 18:47:03,679 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:47:03 WrapperNode [2020-10-11 18:47:03,679 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-11 18:47:03,680 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-11 18:47:03,680 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-11 18:47:03,681 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-11 18:47:03,689 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:47:03" (1/1) ... [2020-10-11 18:47:03,729 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:47:03" (1/1) ... [2020-10-11 18:47:03,757 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-11 18:47:03,758 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-11 18:47:03,758 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-11 18:47:03,758 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-11 18:47:03,767 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:47:03" (1/1) ... [2020-10-11 18:47:03,767 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:47:03" (1/1) ... [2020-10-11 18:47:03,773 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:47:03" (1/1) ... [2020-10-11 18:47:03,773 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:47:03" (1/1) ... [2020-10-11 18:47:03,794 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:47:03" (1/1) ... [2020-10-11 18:47:03,799 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:47:03" (1/1) ... [2020-10-11 18:47:03,801 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:47:03" (1/1) ... [2020-10-11 18:47:03,810 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-11 18:47:03,810 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-11 18:47:03,810 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-11 18:47:03,810 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-11 18:47:03,811 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:47:03" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-11 18:47:03,876 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-11 18:47:03,876 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-11 18:47:03,876 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-11 18:47:03,877 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-11 18:47:03,877 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-11 18:47:03,877 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-11 18:47:03,877 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-11 18:47:03,877 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-11 18:47:03,877 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-10-11 18:47:03,878 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-10-11 18:47:03,878 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-11 18:47:03,878 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-11 18:47:03,878 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-11 18:47:03,879 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-11 18:47:04,210 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-11 18:47:04,210 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-10-11 18:47:04,212 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 06:47:04 BoogieIcfgContainer [2020-10-11 18:47:04,213 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-11 18:47:04,219 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-11 18:47:04,219 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-11 18:47:04,223 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-11 18:47:04,223 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 06:47:02" (1/3) ... [2020-10-11 18:47:04,224 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6781b12e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 06:47:04, skipping insertion in model container [2020-10-11 18:47:04,224 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:47:03" (2/3) ... [2020-10-11 18:47:04,225 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6781b12e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 06:47:04, skipping insertion in model container [2020-10-11 18:47:04,225 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 06:47:04" (3/3) ... [2020-10-11 18:47:04,228 INFO L111 eAbstractionObserver]: Analyzing ICFG safe035_pso.opt.i [2020-10-11 18:47:04,238 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-11 18:47:04,244 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-11 18:47:04,245 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-11 18:47:04,272 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:47:04,273 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:47:04,273 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:47:04,273 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:47:04,274 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:47:04,274 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:47:04,274 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:47:04,275 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:47:04,275 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:47:04,275 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:47:04,276 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:47:04,276 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:47:04,276 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:47:04,276 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:47:04,277 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:47:04,277 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:47:04,277 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:47:04,278 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:47:04,281 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:47:04,282 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:47:04,282 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:47:04,282 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:47:04,297 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:47:04,297 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:47:04,298 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:47:04,298 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:47:04,304 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:47:04,305 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:47:04,305 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:47:04,305 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:47:04,332 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-10-11 18:47:04,350 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-11 18:47:04,351 INFO L378 AbstractCegarLoop]: Hoare is false [2020-10-11 18:47:04,351 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-11 18:47:04,351 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-11 18:47:04,351 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-11 18:47:04,351 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-11 18:47:04,351 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-11 18:47:04,352 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-11 18:47:04,365 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 78 places, 70 transitions, 155 flow [2020-10-11 18:47:04,412 INFO L129 PetriNetUnfolder]: 2/67 cut-off events. [2020-10-11 18:47:04,412 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-11 18:47:04,419 INFO L80 FinitePrefix]: Finished finitePrefix Result has 77 conditions, 67 events. 2/67 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 49 event pairs, 0 based on Foata normal form. 0/64 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2020-10-11 18:47:04,420 INFO L82 GeneralOperation]: Start removeDead. Operand has 78 places, 70 transitions, 155 flow [2020-10-11 18:47:04,427 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 65 places, 56 transitions, 121 flow [2020-10-11 18:47:04,446 INFO L129 PetriNetUnfolder]: 1/55 cut-off events. [2020-10-11 18:47:04,446 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-11 18:47:04,447 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-11 18:47:04,448 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 18:47:04,448 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 18:47:04,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 18:47:04,454 INFO L82 PathProgramCache]: Analyzing trace with hash 658513141, now seen corresponding path program 1 times [2020-10-11 18:47:04,462 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 18:47:04,463 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1371061779] [2020-10-11 18:47:04,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 18:47:04,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 18:47:04,845 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 18:47:04,846 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1371061779] [2020-10-11 18:47:04,847 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 18:47:04,847 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-11 18:47:04,848 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1361809383] [2020-10-11 18:47:04,858 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-11 18:47:04,859 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 18:47:04,873 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-11 18:47:04,875 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-11 18:47:05,073 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 70 [2020-10-11 18:47:05,075 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 56 transitions, 121 flow. Second operand 6 states. [2020-10-11 18:47:05,076 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-11 18:47:05,076 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 70 [2020-10-11 18:47:05,077 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-11 18:47:05,243 INFO L129 PetriNetUnfolder]: 3/75 cut-off events. [2020-10-11 18:47:05,245 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-11 18:47:05,246 INFO L80 FinitePrefix]: Finished finitePrefix Result has 105 conditions, 75 events. 3/75 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 119 event pairs, 0 based on Foata normal form. 4/78 useless extension candidates. Maximal degree in co-relation 80. Up to 7 conditions per place. [2020-10-11 18:47:05,249 INFO L132 encePairwiseOnDemand]: 63/70 looper letters, 6 selfloop transitions, 2 changer transitions 11/65 dead transitions. [2020-10-11 18:47:05,249 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 65 transitions, 175 flow [2020-10-11 18:47:05,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-11 18:47:05,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2020-10-11 18:47:05,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 562 transitions. [2020-10-11 18:47:05,274 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.8920634920634921 [2020-10-11 18:47:05,274 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 562 transitions. [2020-10-11 18:47:05,275 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 562 transitions. [2020-10-11 18:47:05,281 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-11 18:47:05,284 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 562 transitions. [2020-10-11 18:47:05,290 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 10 states. [2020-10-11 18:47:05,312 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 10 states. [2020-10-11 18:47:05,320 INFO L81 ComplementDD]: Finished complementDD. Result 10 states. [2020-10-11 18:47:05,322 INFO L185 Difference]: Start difference. First operand has 65 places, 56 transitions, 121 flow. Second operand 9 states and 562 transitions. [2020-10-11 18:47:05,323 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 65 transitions, 175 flow [2020-10-11 18:47:05,326 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 65 transitions, 172 flow, removed 0 selfloop flow, removed 3 redundant places. [2020-10-11 18:47:05,331 INFO L241 Difference]: Finished difference. Result has 77 places, 54 transitions, 134 flow [2020-10-11 18:47:05,334 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=70, PETRI_DIFFERENCE_MINUEND_FLOW=116, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=134, PETRI_PLACES=77, PETRI_TRANSITIONS=54} [2020-10-11 18:47:05,335 INFO L341 CegarLoopForPetriNet]: 65 programPoint places, 12 predicate places. [2020-10-11 18:47:05,335 INFO L481 AbstractCegarLoop]: Abstraction has has 77 places, 54 transitions, 134 flow [2020-10-11 18:47:05,335 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-11 18:47:05,335 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-11 18:47:05,335 INFO L255 CegarLoopForPetriNet]: 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] [2020-10-11 18:47:05,336 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-11 18:47:05,336 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 18:47:05,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 18:47:05,336 INFO L82 PathProgramCache]: Analyzing trace with hash -553361882, now seen corresponding path program 1 times [2020-10-11 18:47:05,337 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 18:47:05,337 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [146548689] [2020-10-11 18:47:05,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 18:47:05,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 18:47:05,458 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 18:47:05,459 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [146548689] [2020-10-11 18:47:05,459 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 18:47:05,459 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-11 18:47:05,459 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1275814650] [2020-10-11 18:47:05,461 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-11 18:47:05,462 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 18:47:05,462 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-11 18:47:05,462 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-11 18:47:05,673 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 59 out of 70 [2020-10-11 18:47:05,674 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 54 transitions, 134 flow. Second operand 6 states. [2020-10-11 18:47:05,674 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-11 18:47:05,674 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 59 of 70 [2020-10-11 18:47:05,674 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-11 18:47:05,786 INFO L129 PetriNetUnfolder]: 3/83 cut-off events. [2020-10-11 18:47:05,787 INFO L130 PetriNetUnfolder]: For 18/25 co-relation queries the response was YES. [2020-10-11 18:47:05,787 INFO L80 FinitePrefix]: Finished finitePrefix Result has 151 conditions, 83 events. 3/83 cut-off events. For 18/25 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 175 event pairs, 0 based on Foata normal form. 3/84 useless extension candidates. Maximal degree in co-relation 136. Up to 10 conditions per place. [2020-10-11 18:47:05,788 INFO L132 encePairwiseOnDemand]: 64/70 looper letters, 7 selfloop transitions, 2 changer transitions 11/65 dead transitions. [2020-10-11 18:47:05,788 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 65 transitions, 214 flow [2020-10-11 18:47:05,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-11 18:47:05,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2020-10-11 18:47:05,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 553 transitions. [2020-10-11 18:47:05,791 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.8777777777777778 [2020-10-11 18:47:05,791 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 553 transitions. [2020-10-11 18:47:05,792 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 553 transitions. [2020-10-11 18:47:05,792 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-11 18:47:05,792 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 553 transitions. [2020-10-11 18:47:05,794 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 10 states. [2020-10-11 18:47:05,796 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 10 states. [2020-10-11 18:47:05,796 INFO L81 ComplementDD]: Finished complementDD. Result 10 states. [2020-10-11 18:47:05,796 INFO L185 Difference]: Start difference. First operand has 77 places, 54 transitions, 134 flow. Second operand 9 states and 553 transitions. [2020-10-11 18:47:05,797 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 65 transitions, 214 flow [2020-10-11 18:47:05,798 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 65 transitions, 182 flow, removed 14 selfloop flow, removed 8 redundant places. [2020-10-11 18:47:05,800 INFO L241 Difference]: Finished difference. Result has 77 places, 54 transitions, 138 flow [2020-10-11 18:47:05,801 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=70, PETRI_DIFFERENCE_MINUEND_FLOW=118, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=54, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=138, PETRI_PLACES=77, PETRI_TRANSITIONS=54} [2020-10-11 18:47:05,802 INFO L341 CegarLoopForPetriNet]: 65 programPoint places, 12 predicate places. [2020-10-11 18:47:05,802 INFO L481 AbstractCegarLoop]: Abstraction has has 77 places, 54 transitions, 138 flow [2020-10-11 18:47:05,802 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-11 18:47:05,802 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-11 18:47:05,802 INFO L255 CegarLoopForPetriNet]: 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] [2020-10-11 18:47:05,802 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-11 18:47:05,803 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 18:47:05,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 18:47:05,803 INFO L82 PathProgramCache]: Analyzing trace with hash 305068933, now seen corresponding path program 1 times [2020-10-11 18:47:05,803 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 18:47:05,804 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [463906043] [2020-10-11 18:47:05,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 18:47:05,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 18:47:05,921 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 18:47:05,922 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [463906043] [2020-10-11 18:47:05,922 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 18:47:05,922 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-11 18:47:05,922 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [125987387] [2020-10-11 18:47:05,923 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-11 18:47:05,923 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 18:47:05,923 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-11 18:47:05,924 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-10-11 18:47:06,198 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 57 out of 70 [2020-10-11 18:47:06,198 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 54 transitions, 138 flow. Second operand 7 states. [2020-10-11 18:47:06,199 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-11 18:47:06,199 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 57 of 70 [2020-10-11 18:47:06,199 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-11 18:47:06,290 INFO L129 PetriNetUnfolder]: 0/67 cut-off events. [2020-10-11 18:47:06,291 INFO L130 PetriNetUnfolder]: For 19/39 co-relation queries the response was YES. [2020-10-11 18:47:06,291 INFO L80 FinitePrefix]: Finished finitePrefix Result has 122 conditions, 67 events. 0/67 cut-off events. For 19/39 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 104 event pairs, 0 based on Foata normal form. 2/69 useless extension candidates. Maximal degree in co-relation 0. Up to 7 conditions per place. [2020-10-11 18:47:06,292 INFO L132 encePairwiseOnDemand]: 64/70 looper letters, 10 selfloop transitions, 1 changer transitions 5/59 dead transitions. [2020-10-11 18:47:06,292 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 59 transitions, 193 flow [2020-10-11 18:47:06,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-11 18:47:06,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2020-10-11 18:47:06,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 416 transitions. [2020-10-11 18:47:06,294 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.8489795918367347 [2020-10-11 18:47:06,294 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 416 transitions. [2020-10-11 18:47:06,295 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 416 transitions. [2020-10-11 18:47:06,295 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-11 18:47:06,295 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 416 transitions. [2020-10-11 18:47:06,296 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 8 states. [2020-10-11 18:47:06,298 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 8 states. [2020-10-11 18:47:06,298 INFO L81 ComplementDD]: Finished complementDD. Result 8 states. [2020-10-11 18:47:06,298 INFO L185 Difference]: Start difference. First operand has 77 places, 54 transitions, 138 flow. Second operand 7 states and 416 transitions. [2020-10-11 18:47:06,298 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 59 transitions, 193 flow [2020-10-11 18:47:06,312 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 59 transitions, 171 flow, removed 10 selfloop flow, removed 7 redundant places. [2020-10-11 18:47:06,314 INFO L241 Difference]: Finished difference. Result has 75 places, 54 transitions, 137 flow [2020-10-11 18:47:06,314 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=70, PETRI_DIFFERENCE_MINUEND_FLOW=124, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=54, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=137, PETRI_PLACES=75, PETRI_TRANSITIONS=54} [2020-10-11 18:47:06,314 INFO L341 CegarLoopForPetriNet]: 65 programPoint places, 10 predicate places. [2020-10-11 18:47:06,314 INFO L481 AbstractCegarLoop]: Abstraction has has 75 places, 54 transitions, 137 flow [2020-10-11 18:47:06,314 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-11 18:47:06,315 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-11 18:47:06,315 INFO L255 CegarLoopForPetriNet]: 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] [2020-10-11 18:47:06,315 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-11 18:47:06,315 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 18:47:06,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 18:47:06,316 INFO L82 PathProgramCache]: Analyzing trace with hash -677133089, now seen corresponding path program 2 times [2020-10-11 18:47:06,316 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 18:47:06,316 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1426290562] [2020-10-11 18:47:06,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 18:47:06,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 18:47:06,431 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 18:47:06,432 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1426290562] [2020-10-11 18:47:06,432 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 18:47:06,432 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-11 18:47:06,433 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [58135719] [2020-10-11 18:47:06,433 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-11 18:47:06,433 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 18:47:06,433 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-11 18:47:06,434 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-11 18:47:06,550 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 57 out of 70 [2020-10-11 18:47:06,551 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 54 transitions, 137 flow. Second operand 6 states. [2020-10-11 18:47:06,551 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-11 18:47:06,551 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 57 of 70 [2020-10-11 18:47:06,551 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-11 18:47:06,700 INFO L129 PetriNetUnfolder]: 112/340 cut-off events. [2020-10-11 18:47:06,700 INFO L130 PetriNetUnfolder]: For 27/29 co-relation queries the response was YES. [2020-10-11 18:47:06,703 INFO L80 FinitePrefix]: Finished finitePrefix Result has 613 conditions, 340 events. 112/340 cut-off events. For 27/29 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 1899 event pairs, 2 based on Foata normal form. 10/335 useless extension candidates. Maximal degree in co-relation 583. Up to 101 conditions per place. [2020-10-11 18:47:06,705 INFO L132 encePairwiseOnDemand]: 61/70 looper letters, 10 selfloop transitions, 6 changer transitions 19/79 dead transitions. [2020-10-11 18:47:06,705 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 79 transitions, 257 flow [2020-10-11 18:47:06,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-11 18:47:06,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2020-10-11 18:47:06,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 550 transitions. [2020-10-11 18:47:06,707 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.873015873015873 [2020-10-11 18:47:06,707 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 550 transitions. [2020-10-11 18:47:06,708 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 550 transitions. [2020-10-11 18:47:06,708 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-11 18:47:06,708 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 550 transitions. [2020-10-11 18:47:06,710 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 10 states. [2020-10-11 18:47:06,711 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 10 states. [2020-10-11 18:47:06,711 INFO L81 ComplementDD]: Finished complementDD. Result 10 states. [2020-10-11 18:47:06,711 INFO L185 Difference]: Start difference. First operand has 75 places, 54 transitions, 137 flow. Second operand 9 states and 550 transitions. [2020-10-11 18:47:06,711 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 79 transitions, 257 flow [2020-10-11 18:47:06,713 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 79 transitions, 248 flow, removed 4 selfloop flow, removed 5 redundant places. [2020-10-11 18:47:06,715 INFO L241 Difference]: Finished difference. Result has 80 places, 57 transitions, 184 flow [2020-10-11 18:47:06,716 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=70, PETRI_DIFFERENCE_MINUEND_FLOW=128, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=54, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=184, PETRI_PLACES=80, PETRI_TRANSITIONS=57} [2020-10-11 18:47:06,716 INFO L341 CegarLoopForPetriNet]: 65 programPoint places, 15 predicate places. [2020-10-11 18:47:06,716 INFO L481 AbstractCegarLoop]: Abstraction has has 80 places, 57 transitions, 184 flow [2020-10-11 18:47:06,716 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-11 18:47:06,716 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-11 18:47:06,716 INFO L255 CegarLoopForPetriNet]: 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] [2020-10-11 18:47:06,717 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-11 18:47:06,717 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 18:47:06,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 18:47:06,717 INFO L82 PathProgramCache]: Analyzing trace with hash 822764428, now seen corresponding path program 1 times [2020-10-11 18:47:06,718 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 18:47:06,718 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [842499060] [2020-10-11 18:47:06,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 18:47:06,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 18:47:06,817 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 18:47:06,817 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [842499060] [2020-10-11 18:47:06,818 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 18:47:06,818 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-11 18:47:06,818 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1012180789] [2020-10-11 18:47:06,819 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-11 18:47:06,819 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 18:47:06,819 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-11 18:47:06,819 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-10-11 18:47:06,894 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 57 out of 70 [2020-10-11 18:47:06,894 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 57 transitions, 184 flow. Second operand 7 states. [2020-10-11 18:47:06,894 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-11 18:47:06,894 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 57 of 70 [2020-10-11 18:47:06,895 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-11 18:47:07,048 INFO L129 PetriNetUnfolder]: 60/218 cut-off events. [2020-10-11 18:47:07,048 INFO L130 PetriNetUnfolder]: For 341/352 co-relation queries the response was YES. [2020-10-11 18:47:07,049 INFO L80 FinitePrefix]: Finished finitePrefix Result has 687 conditions, 218 events. 60/218 cut-off events. For 341/352 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 958 event pairs, 0 based on Foata normal form. 16/229 useless extension candidates. Maximal degree in co-relation 653. Up to 89 conditions per place. [2020-10-11 18:47:07,051 INFO L132 encePairwiseOnDemand]: 61/70 looper letters, 10 selfloop transitions, 9 changer transitions 19/82 dead transitions. [2020-10-11 18:47:07,051 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 82 transitions, 437 flow [2020-10-11 18:47:07,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-11 18:47:07,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2020-10-11 18:47:07,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 610 transitions. [2020-10-11 18:47:07,054 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.8714285714285714 [2020-10-11 18:47:07,054 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 610 transitions. [2020-10-11 18:47:07,054 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 610 transitions. [2020-10-11 18:47:07,055 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-11 18:47:07,055 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 610 transitions. [2020-10-11 18:47:07,056 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 11 states. [2020-10-11 18:47:07,057 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 11 states. [2020-10-11 18:47:07,058 INFO L81 ComplementDD]: Finished complementDD. Result 11 states. [2020-10-11 18:47:07,058 INFO L185 Difference]: Start difference. First operand has 80 places, 57 transitions, 184 flow. Second operand 10 states and 610 transitions. [2020-10-11 18:47:07,058 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 82 transitions, 437 flow [2020-10-11 18:47:07,061 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 82 transitions, 413 flow, removed 7 selfloop flow, removed 5 redundant places. [2020-10-11 18:47:07,063 INFO L241 Difference]: Finished difference. Result has 86 places, 60 transitions, 252 flow [2020-10-11 18:47:07,063 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=70, PETRI_DIFFERENCE_MINUEND_FLOW=170, PETRI_DIFFERENCE_MINUEND_PLACES=71, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=57, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=252, PETRI_PLACES=86, PETRI_TRANSITIONS=60} [2020-10-11 18:47:07,064 INFO L341 CegarLoopForPetriNet]: 65 programPoint places, 21 predicate places. [2020-10-11 18:47:07,064 INFO L481 AbstractCegarLoop]: Abstraction has has 86 places, 60 transitions, 252 flow [2020-10-11 18:47:07,064 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-11 18:47:07,064 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-11 18:47:07,064 INFO L255 CegarLoopForPetriNet]: 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] [2020-10-11 18:47:07,064 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-11 18:47:07,065 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 18:47:07,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 18:47:07,065 INFO L82 PathProgramCache]: Analyzing trace with hash -558796619, now seen corresponding path program 1 times [2020-10-11 18:47:07,065 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 18:47:07,065 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1903339939] [2020-10-11 18:47:07,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 18:47:07,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 18:47:07,200 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 18:47:07,201 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1903339939] [2020-10-11 18:47:07,201 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 18:47:07,201 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-11 18:47:07,202 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [464495529] [2020-10-11 18:47:07,203 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-11 18:47:07,203 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 18:47:07,204 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-11 18:47:07,204 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-10-11 18:47:07,379 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 57 out of 70 [2020-10-11 18:47:07,380 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 86 places, 60 transitions, 252 flow. Second operand 8 states. [2020-10-11 18:47:07,380 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-11 18:47:07,380 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 57 of 70 [2020-10-11 18:47:07,381 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-11 18:47:07,554 INFO L129 PetriNetUnfolder]: 17/113 cut-off events. [2020-10-11 18:47:07,554 INFO L130 PetriNetUnfolder]: For 425/447 co-relation queries the response was YES. [2020-10-11 18:47:07,555 INFO L80 FinitePrefix]: Finished finitePrefix Result has 390 conditions, 113 events. 17/113 cut-off events. For 425/447 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 292 event pairs, 0 based on Foata normal form. 17/129 useless extension candidates. Maximal degree in co-relation 362. Up to 34 conditions per place. [2020-10-11 18:47:07,555 INFO L132 encePairwiseOnDemand]: 61/70 looper letters, 4 selfloop transitions, 12 changer transitions 13/73 dead transitions. [2020-10-11 18:47:07,555 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 73 transitions, 436 flow [2020-10-11 18:47:07,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-11 18:47:07,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2020-10-11 18:47:07,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 658 transitions. [2020-10-11 18:47:07,558 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.8545454545454545 [2020-10-11 18:47:07,558 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 658 transitions. [2020-10-11 18:47:07,559 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 658 transitions. [2020-10-11 18:47:07,559 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-11 18:47:07,559 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 658 transitions. [2020-10-11 18:47:07,561 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 12 states. [2020-10-11 18:47:07,562 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 12 states. [2020-10-11 18:47:07,562 INFO L81 ComplementDD]: Finished complementDD. Result 12 states. [2020-10-11 18:47:07,563 INFO L185 Difference]: Start difference. First operand has 86 places, 60 transitions, 252 flow. Second operand 11 states and 658 transitions. [2020-10-11 18:47:07,563 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 73 transitions, 436 flow [2020-10-11 18:47:07,566 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 73 transitions, 333 flow, removed 40 selfloop flow, removed 11 redundant places. [2020-10-11 18:47:07,568 INFO L241 Difference]: Finished difference. Result has 87 places, 60 transitions, 234 flow [2020-10-11 18:47:07,568 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=70, PETRI_DIFFERENCE_MINUEND_FLOW=188, PETRI_DIFFERENCE_MINUEND_PLACES=71, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=234, PETRI_PLACES=87, PETRI_TRANSITIONS=60} [2020-10-11 18:47:07,568 INFO L341 CegarLoopForPetriNet]: 65 programPoint places, 22 predicate places. [2020-10-11 18:47:07,568 INFO L481 AbstractCegarLoop]: Abstraction has has 87 places, 60 transitions, 234 flow [2020-10-11 18:47:07,568 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-11 18:47:07,569 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-11 18:47:07,569 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 18:47:07,569 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-11 18:47:07,569 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 18:47:07,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 18:47:07,570 INFO L82 PathProgramCache]: Analyzing trace with hash 913670455, now seen corresponding path program 1 times [2020-10-11 18:47:07,570 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 18:47:07,570 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1361835764] [2020-10-11 18:47:07,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 18:47:07,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 18:47:07,699 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 18:47:07,699 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1361835764] [2020-10-11 18:47:07,700 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 18:47:07,700 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-11 18:47:07,700 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [990653675] [2020-10-11 18:47:07,701 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-11 18:47:07,701 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 18:47:07,701 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-11 18:47:07,702 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-10-11 18:47:07,956 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 70 [2020-10-11 18:47:07,957 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 87 places, 60 transitions, 234 flow. Second operand 7 states. [2020-10-11 18:47:07,957 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-11 18:47:07,958 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 70 [2020-10-11 18:47:07,958 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-11 18:47:08,067 INFO L129 PetriNetUnfolder]: 12/128 cut-off events. [2020-10-11 18:47:08,068 INFO L130 PetriNetUnfolder]: For 153/160 co-relation queries the response was YES. [2020-10-11 18:47:08,070 INFO L80 FinitePrefix]: Finished finitePrefix Result has 306 conditions, 128 events. 12/128 cut-off events. For 153/160 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 399 event pairs, 0 based on Foata normal form. 1/127 useless extension candidates. Maximal degree in co-relation 268. Up to 25 conditions per place. [2020-10-11 18:47:08,071 INFO L132 encePairwiseOnDemand]: 64/70 looper letters, 9 selfloop transitions, 1 changer transitions 5/65 dead transitions. [2020-10-11 18:47:08,071 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 89 places, 65 transitions, 274 flow [2020-10-11 18:47:08,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-11 18:47:08,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2020-10-11 18:47:08,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 422 transitions. [2020-10-11 18:47:08,075 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.8612244897959184 [2020-10-11 18:47:08,075 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 422 transitions. [2020-10-11 18:47:08,075 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 422 transitions. [2020-10-11 18:47:08,075 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-11 18:47:08,076 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 422 transitions. [2020-10-11 18:47:08,079 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 8 states. [2020-10-11 18:47:08,080 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 8 states. [2020-10-11 18:47:08,080 INFO L81 ComplementDD]: Finished complementDD. Result 8 states. [2020-10-11 18:47:08,080 INFO L185 Difference]: Start difference. First operand has 87 places, 60 transitions, 234 flow. Second operand 7 states and 422 transitions. [2020-10-11 18:47:08,081 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 89 places, 65 transitions, 274 flow [2020-10-11 18:47:08,082 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 65 transitions, 192 flow, removed 22 selfloop flow, removed 15 redundant places. [2020-10-11 18:47:08,085 INFO L241 Difference]: Finished difference. Result has 79 places, 60 transitions, 165 flow [2020-10-11 18:47:08,085 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=70, PETRI_DIFFERENCE_MINUEND_FLOW=152, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=59, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=165, PETRI_PLACES=79, PETRI_TRANSITIONS=60} [2020-10-11 18:47:08,085 INFO L341 CegarLoopForPetriNet]: 65 programPoint places, 14 predicate places. [2020-10-11 18:47:08,085 INFO L481 AbstractCegarLoop]: Abstraction has has 79 places, 60 transitions, 165 flow [2020-10-11 18:47:08,085 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-11 18:47:08,086 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-11 18:47:08,086 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 18:47:08,086 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-11 18:47:08,086 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 18:47:08,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 18:47:08,087 INFO L82 PathProgramCache]: Analyzing trace with hash 733959967, now seen corresponding path program 2 times [2020-10-11 18:47:08,087 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 18:47:08,087 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [978265788] [2020-10-11 18:47:08,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 18:47:08,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 18:47:08,218 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 18:47:08,218 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [978265788] [2020-10-11 18:47:08,219 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 18:47:08,219 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-11 18:47:08,219 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1657867325] [2020-10-11 18:47:08,220 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-11 18:47:08,220 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 18:47:08,221 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-11 18:47:08,221 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-10-11 18:47:08,477 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 57 out of 70 [2020-10-11 18:47:08,477 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 60 transitions, 165 flow. Second operand 7 states. [2020-10-11 18:47:08,478 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-11 18:47:08,478 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 57 of 70 [2020-10-11 18:47:08,478 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-11 18:47:08,564 INFO L129 PetriNetUnfolder]: 9/111 cut-off events. [2020-10-11 18:47:08,565 INFO L130 PetriNetUnfolder]: For 13/13 co-relation queries the response was YES. [2020-10-11 18:47:08,565 INFO L80 FinitePrefix]: Finished finitePrefix Result has 185 conditions, 111 events. 9/111 cut-off events. For 13/13 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 347 event pairs, 1 based on Foata normal form. 1/109 useless extension candidates. Maximal degree in co-relation 176. Up to 12 conditions per place. [2020-10-11 18:47:08,565 INFO L132 encePairwiseOnDemand]: 64/70 looper letters, 0 selfloop transitions, 0 changer transitions 59/59 dead transitions. [2020-10-11 18:47:08,566 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 59 transitions, 183 flow [2020-10-11 18:47:08,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-11 18:47:08,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2020-10-11 18:47:08,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 411 transitions. [2020-10-11 18:47:08,568 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.8387755102040816 [2020-10-11 18:47:08,568 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 411 transitions. [2020-10-11 18:47:08,568 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 411 transitions. [2020-10-11 18:47:08,568 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-11 18:47:08,569 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 411 transitions. [2020-10-11 18:47:08,570 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 8 states. [2020-10-11 18:47:08,571 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 8 states. [2020-10-11 18:47:08,571 INFO L81 ComplementDD]: Finished complementDD. Result 8 states. [2020-10-11 18:47:08,571 INFO L185 Difference]: Start difference. First operand has 79 places, 60 transitions, 165 flow. Second operand 7 states and 411 transitions. [2020-10-11 18:47:08,571 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 59 transitions, 183 flow [2020-10-11 18:47:08,572 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 59 transitions, 176 flow, removed 3 selfloop flow, removed 4 redundant places. [2020-10-11 18:47:08,573 INFO L241 Difference]: Finished difference. Result has 75 places, 0 transitions, 0 flow [2020-10-11 18:47:08,573 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=70, PETRI_DIFFERENCE_MINUEND_FLOW=152, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=0, PETRI_PLACES=75, PETRI_TRANSITIONS=0} [2020-10-11 18:47:08,574 INFO L341 CegarLoopForPetriNet]: 65 programPoint places, 10 predicate places. [2020-10-11 18:47:08,574 INFO L481 AbstractCegarLoop]: Abstraction has has 75 places, 0 transitions, 0 flow [2020-10-11 18:47:08,574 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-11 18:47:08,574 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-11 18:47:08,580 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 06:47:08 BasicIcfg [2020-10-11 18:47:08,580 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-11 18:47:08,583 INFO L168 Benchmark]: Toolchain (without parser) took 5579.22 ms. Allocated memory was 254.8 MB in the beginning and 420.5 MB in the end (delta: 165.7 MB). Free memory was 210.7 MB in the beginning and 185.4 MB in the end (delta: 25.4 MB). Peak memory consumption was 191.0 MB. Max. memory is 14.2 GB. [2020-10-11 18:47:08,583 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 254.8 MB. Free memory is still 231.2 MB. There was no memory consumed. Max. memory is 14.2 GB. [2020-10-11 18:47:08,584 INFO L168 Benchmark]: CACSL2BoogieTranslator took 675.54 ms. Allocated memory was 254.8 MB in the beginning and 325.1 MB in the end (delta: 70.3 MB). Free memory was 210.7 MB in the beginning and 277.7 MB in the end (delta: -66.9 MB). Peak memory consumption was 30.7 MB. Max. memory is 14.2 GB. [2020-10-11 18:47:08,585 INFO L168 Benchmark]: Boogie Procedure Inliner took 77.47 ms. Allocated memory is still 325.1 MB. Free memory was 277.7 MB in the beginning and 275.2 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. [2020-10-11 18:47:08,586 INFO L168 Benchmark]: Boogie Preprocessor took 52.15 ms. Allocated memory is still 325.1 MB. Free memory was 275.2 MB in the beginning and 272.7 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. [2020-10-11 18:47:08,587 INFO L168 Benchmark]: RCFGBuilder took 402.91 ms. Allocated memory is still 325.1 MB. Free memory was 272.7 MB in the beginning and 250.8 MB in the end (delta: 21.9 MB). Peak memory consumption was 21.9 MB. Max. memory is 14.2 GB. [2020-10-11 18:47:08,588 INFO L168 Benchmark]: TraceAbstraction took 4361.23 ms. Allocated memory was 325.1 MB in the beginning and 420.5 MB in the end (delta: 95.4 MB). Free memory was 250.8 MB in the beginning and 185.4 MB in the end (delta: 65.4 MB). Peak memory consumption was 160.8 MB. Max. memory is 14.2 GB. [2020-10-11 18:47:08,592 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 254.8 MB. Free memory is still 231.2 MB. There was no memory consumed. Max. memory is 14.2 GB. * CACSL2BoogieTranslator took 675.54 ms. Allocated memory was 254.8 MB in the beginning and 325.1 MB in the end (delta: 70.3 MB). Free memory was 210.7 MB in the beginning and 277.7 MB in the end (delta: -66.9 MB). Peak memory consumption was 30.7 MB. Max. memory is 14.2 GB. * Boogie Procedure Inliner took 77.47 ms. Allocated memory is still 325.1 MB. Free memory was 277.7 MB in the beginning and 275.2 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. * Boogie Preprocessor took 52.15 ms. Allocated memory is still 325.1 MB. Free memory was 275.2 MB in the beginning and 272.7 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. * RCFGBuilder took 402.91 ms. Allocated memory is still 325.1 MB. Free memory was 272.7 MB in the beginning and 250.8 MB in the end (delta: 21.9 MB). Peak memory consumption was 21.9 MB. Max. memory is 14.2 GB. * TraceAbstraction took 4361.23 ms. Allocated memory was 325.1 MB in the beginning and 420.5 MB in the end (delta: 95.4 MB). Free memory was 250.8 MB in the beginning and 185.4 MB in the end (delta: 65.4 MB). Peak memory consumption was 160.8 MB. Max. memory is 14.2 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, 69 locations, 1 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 4.2s, OverallIterations: 8, TraceHistogramMax: 1, AutomataDifference: 2.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 219 SDtfs, 209 SDslu, 615 SDs, 0 SdLazy, 607 SolverSat, 90 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 94 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 78 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=252occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 339 NumberOfCodeBlocks, 339 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 331 ConstructedInterpolants, 0 QuantifiedInterpolants, 36509 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...