/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/safe014_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-11af1e5 [2020-10-11 18:36:23,743 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-11 18:36:23,745 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-11 18:36:23,769 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-11 18:36:23,769 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-11 18:36:23,770 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-11 18:36:23,772 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-11 18:36:23,773 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-11 18:36:23,775 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-11 18:36:23,776 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-11 18:36:23,777 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-11 18:36:23,778 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-11 18:36:23,778 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-11 18:36:23,779 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-11 18:36:23,780 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-11 18:36:23,781 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-11 18:36:23,782 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-11 18:36:23,783 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-11 18:36:23,785 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-11 18:36:23,786 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-11 18:36:23,788 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-11 18:36:23,789 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-11 18:36:23,790 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-11 18:36:23,791 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-11 18:36:23,793 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-11 18:36:23,794 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-11 18:36:23,794 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-11 18:36:23,795 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-11 18:36:23,795 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-11 18:36:23,796 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-11 18:36:23,796 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-11 18:36:23,797 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-11 18:36:23,798 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-11 18:36:23,799 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-11 18:36:23,800 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-11 18:36:23,800 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-11 18:36:23,801 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-11 18:36:23,801 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-11 18:36:23,801 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-11 18:36:23,802 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-11 18:36:23,803 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-11 18:36:23,803 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 18:36:23,826 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-11 18:36:23,827 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-11 18:36:23,828 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-11 18:36:23,828 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-11 18:36:23,828 INFO L138 SettingsManager]: * Use SBE=true [2020-10-11 18:36:23,829 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-11 18:36:23,829 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-11 18:36:23,829 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-11 18:36:23,829 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-11 18:36:23,830 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-11 18:36:23,830 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-11 18:36:23,830 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-11 18:36:23,830 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-11 18:36:23,830 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-11 18:36:23,830 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-11 18:36:23,831 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-11 18:36:23,831 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-11 18:36:23,831 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-11 18:36:23,831 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-11 18:36:23,831 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-11 18:36:23,832 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-11 18:36:23,832 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-11 18:36:23,832 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-11 18:36:23,832 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-11 18:36:23,832 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-11 18:36:23,833 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-11 18:36:23,833 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-11 18:36:23,833 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2020-10-11 18:36:23,833 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2020-10-11 18:36:23,833 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-11 18:36:24,132 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-11 18:36:24,144 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-11 18:36:24,147 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-11 18:36:24,149 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-11 18:36:24,149 INFO L275 PluginConnector]: CDTParser initialized [2020-10-11 18:36:24,150 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe014_tso.opt.i [2020-10-11 18:36:24,211 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e231e6f58/17f1a77cd73d43e4a5ead389c5d17abe/FLAG7952bbade [2020-10-11 18:36:24,727 INFO L306 CDTParser]: Found 1 translation units. [2020-10-11 18:36:24,727 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe014_tso.opt.i [2020-10-11 18:36:24,751 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e231e6f58/17f1a77cd73d43e4a5ead389c5d17abe/FLAG7952bbade [2020-10-11 18:36:25,066 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e231e6f58/17f1a77cd73d43e4a5ead389c5d17abe [2020-10-11 18:36:25,075 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-11 18:36:25,077 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-11 18:36:25,078 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-11 18:36:25,078 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-11 18:36:25,082 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-11 18:36:25,083 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 06:36:25" (1/1) ... [2020-10-11 18:36:25,086 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6649cd69 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:36:25, skipping insertion in model container [2020-10-11 18:36:25,086 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 06:36:25" (1/1) ... [2020-10-11 18:36:25,097 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-11 18:36:25,159 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-11 18:36:25,599 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-11 18:36:25,611 INFO L203 MainTranslator]: Completed pre-run [2020-10-11 18:36:25,657 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-11 18:36:25,739 INFO L208 MainTranslator]: Completed translation [2020-10-11 18:36:25,739 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:36:25 WrapperNode [2020-10-11 18:36:25,739 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-11 18:36:25,740 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-11 18:36:25,740 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-11 18:36:25,741 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-11 18:36:25,749 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:36:25" (1/1) ... [2020-10-11 18:36:25,765 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:36:25" (1/1) ... [2020-10-11 18:36:25,788 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-11 18:36:25,789 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-11 18:36:25,789 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-11 18:36:25,789 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-11 18:36:25,798 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:36:25" (1/1) ... [2020-10-11 18:36:25,798 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:36:25" (1/1) ... [2020-10-11 18:36:25,801 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:36:25" (1/1) ... [2020-10-11 18:36:25,801 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:36:25" (1/1) ... [2020-10-11 18:36:25,807 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:36:25" (1/1) ... [2020-10-11 18:36:25,809 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:36:25" (1/1) ... [2020-10-11 18:36:25,811 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:36:25" (1/1) ... [2020-10-11 18:36:25,814 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-11 18:36:25,814 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-11 18:36:25,814 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-11 18:36:25,815 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-11 18:36:25,815 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:36:25" (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 18:36:25,884 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-11 18:36:25,885 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-11 18:36:25,885 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-11 18:36:25,885 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-11 18:36:25,886 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-11 18:36:25,886 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-11 18:36:25,886 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-11 18:36:25,887 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-11 18:36:25,887 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-10-11 18:36:25,888 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-10-11 18:36:25,888 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-11 18:36:25,888 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-11 18:36:25,889 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-11 18:36:25,892 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 18:36:26,292 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-11 18:36:26,293 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-10-11 18:36:26,295 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 06:36:26 BoogieIcfgContainer [2020-10-11 18:36:26,295 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-11 18:36:26,297 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-11 18:36:26,297 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-11 18:36:26,300 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-11 18:36:26,300 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 06:36:25" (1/3) ... [2020-10-11 18:36:26,301 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ebd0fc5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 06:36:26, skipping insertion in model container [2020-10-11 18:36:26,301 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:36:25" (2/3) ... [2020-10-11 18:36:26,302 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ebd0fc5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 06:36:26, skipping insertion in model container [2020-10-11 18:36:26,302 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 06:36:26" (3/3) ... [2020-10-11 18:36:26,304 INFO L111 eAbstractionObserver]: Analyzing ICFG safe014_tso.opt.i [2020-10-11 18:36:26,315 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-11 18:36:26,322 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-11 18:36:26,323 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-11 18:36:26,350 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:36:26,350 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:36:26,350 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:36:26,351 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:36:26,351 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:36:26,352 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:36:26,352 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:36:26,352 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:36:26,352 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:36:26,353 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:36:26,353 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:36:26,353 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:36:26,354 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:36:26,354 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:36:26,354 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:36:26,354 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:36:26,355 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:36:26,355 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:36:26,359 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:36:26,359 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:36:26,359 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:36:26,360 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:36:26,366 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:36:26,366 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:36:26,367 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:36:26,367 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:36:26,369 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:36:26,369 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:36:26,370 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:36:26,370 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:36:26,388 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-10-11 18:36:26,410 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-11 18:36:26,410 INFO L378 AbstractCegarLoop]: Hoare is false [2020-10-11 18:36:26,411 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-11 18:36:26,411 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-11 18:36:26,411 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-11 18:36:26,411 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-11 18:36:26,411 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-11 18:36:26,411 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-11 18:36:26,423 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 78 places, 70 transitions, 155 flow [2020-10-11 18:36:26,464 INFO L129 PetriNetUnfolder]: 2/67 cut-off events. [2020-10-11 18:36:26,465 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-11 18:36:26,470 INFO L80 FinitePrefix]: Finished finitePrefix Result has 77 conditions, 67 events. 2/67 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 46 event pairs, 0 based on Foata normal form. 0/64 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2020-10-11 18:36:26,470 INFO L82 GeneralOperation]: Start removeDead. Operand has 78 places, 70 transitions, 155 flow [2020-10-11 18:36:26,476 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 65 places, 56 transitions, 121 flow [2020-10-11 18:36:26,502 INFO L129 PetriNetUnfolder]: 1/55 cut-off events. [2020-10-11 18:36:26,502 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-11 18:36:26,502 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-11 18:36:26,503 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 18:36:26,504 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 18:36:26,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 18:36:26,510 INFO L82 PathProgramCache]: Analyzing trace with hash -927851968, now seen corresponding path program 1 times [2020-10-11 18:36:26,519 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 18:36:26,519 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1186940583] [2020-10-11 18:36:26,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 18:36:26,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 18:36:26,918 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 18:36:26,919 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1186940583] [2020-10-11 18:36:26,920 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 18:36:26,920 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-11 18:36:26,921 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1463730825] [2020-10-11 18:36:26,932 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-11 18:36:26,932 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 18:36:26,949 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-11 18:36:26,951 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-11 18:36:27,160 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 70 [2020-10-11 18:36:27,163 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 56 transitions, 121 flow. Second operand 6 states. [2020-10-11 18:36:27,163 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-11 18:36:27,163 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 70 [2020-10-11 18:36:27,165 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-11 18:36:27,362 INFO L129 PetriNetUnfolder]: 3/70 cut-off events. [2020-10-11 18:36:27,362 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-11 18:36:27,364 INFO L80 FinitePrefix]: Finished finitePrefix Result has 100 conditions, 70 events. 3/70 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 95 event pairs, 0 based on Foata normal form. 4/73 useless extension candidates. Maximal degree in co-relation 75. Up to 7 conditions per place. [2020-10-11 18:36:27,366 INFO L132 encePairwiseOnDemand]: 63/70 looper letters, 6 selfloop transitions, 2 changer transitions 11/65 dead transitions. [2020-10-11 18:36:27,366 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 65 transitions, 175 flow [2020-10-11 18:36:27,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-11 18:36:27,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2020-10-11 18:36:27,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 562 transitions. [2020-10-11 18:36:27,400 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.8920634920634921 [2020-10-11 18:36:27,401 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 562 transitions. [2020-10-11 18:36:27,402 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 562 transitions. [2020-10-11 18:36:27,409 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-11 18:36:27,412 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 562 transitions. [2020-10-11 18:36:27,417 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 10 states. [2020-10-11 18:36:27,426 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 10 states. [2020-10-11 18:36:27,427 INFO L81 ComplementDD]: Finished complementDD. Result 10 states. [2020-10-11 18:36:27,429 INFO L185 Difference]: Start difference. First operand has 65 places, 56 transitions, 121 flow. Second operand 9 states and 562 transitions. [2020-10-11 18:36:27,430 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 65 transitions, 175 flow [2020-10-11 18:36:27,434 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 18:36:27,439 INFO L241 Difference]: Finished difference. Result has 77 places, 54 transitions, 134 flow [2020-10-11 18:36:27,442 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 18:36:27,443 INFO L341 CegarLoopForPetriNet]: 65 programPoint places, 12 predicate places. [2020-10-11 18:36:27,443 INFO L481 AbstractCegarLoop]: Abstraction has has 77 places, 54 transitions, 134 flow [2020-10-11 18:36:27,444 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-11 18:36:27,444 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-11 18:36:27,444 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] [2020-10-11 18:36:27,444 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-11 18:36:27,445 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 18:36:27,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 18:36:27,445 INFO L82 PathProgramCache]: Analyzing trace with hash -6847167, now seen corresponding path program 1 times [2020-10-11 18:36:27,445 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 18:36:27,446 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [727149415] [2020-10-11 18:36:27,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 18:36:27,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 18:36:27,631 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 18:36:27,631 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [727149415] [2020-10-11 18:36:27,632 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 18:36:27,632 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-11 18:36:27,632 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1031120090] [2020-10-11 18:36:27,635 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-11 18:36:27,635 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 18:36:27,635 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-11 18:36:27,636 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-11 18:36:27,800 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 70 [2020-10-11 18:36:27,801 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 54 transitions, 134 flow. Second operand 6 states. [2020-10-11 18:36:27,801 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-11 18:36:27,801 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 70 [2020-10-11 18:36:27,801 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-11 18:36:27,930 INFO L129 PetriNetUnfolder]: 3/69 cut-off events. [2020-10-11 18:36:27,930 INFO L130 PetriNetUnfolder]: For 14/14 co-relation queries the response was YES. [2020-10-11 18:36:27,931 INFO L80 FinitePrefix]: Finished finitePrefix Result has 123 conditions, 69 events. 3/69 cut-off events. For 14/14 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 92 event pairs, 0 based on Foata normal form. 2/71 useless extension candidates. Maximal degree in co-relation 108. Up to 7 conditions per place. [2020-10-11 18:36:27,932 INFO L132 encePairwiseOnDemand]: 64/70 looper letters, 6 selfloop transitions, 2 changer transitions 10/64 dead transitions. [2020-10-11 18:36:27,932 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 64 transitions, 208 flow [2020-10-11 18:36:27,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-11 18:36:27,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2020-10-11 18:36:27,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 560 transitions. [2020-10-11 18:36:27,935 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.8888888888888888 [2020-10-11 18:36:27,935 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 560 transitions. [2020-10-11 18:36:27,936 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 560 transitions. [2020-10-11 18:36:27,936 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-11 18:36:27,937 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 560 transitions. [2020-10-11 18:36:27,939 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 10 states. [2020-10-11 18:36:27,941 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 10 states. [2020-10-11 18:36:27,941 INFO L81 ComplementDD]: Finished complementDD. Result 10 states. [2020-10-11 18:36:27,941 INFO L185 Difference]: Start difference. First operand has 77 places, 54 transitions, 134 flow. Second operand 9 states and 560 transitions. [2020-10-11 18:36:27,941 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 64 transitions, 208 flow [2020-10-11 18:36:27,943 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 64 transitions, 176 flow, removed 14 selfloop flow, removed 8 redundant places. [2020-10-11 18:36:27,945 INFO L241 Difference]: Finished difference. Result has 77 places, 54 transitions, 138 flow [2020-10-11 18:36:27,946 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 18:36:27,947 INFO L341 CegarLoopForPetriNet]: 65 programPoint places, 12 predicate places. [2020-10-11 18:36:27,947 INFO L481 AbstractCegarLoop]: Abstraction has has 77 places, 54 transitions, 138 flow [2020-10-11 18:36:27,947 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-11 18:36:27,947 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-11 18:36:27,948 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] [2020-10-11 18:36:27,948 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-11 18:36:27,948 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 18:36:27,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 18:36:27,949 INFO L82 PathProgramCache]: Analyzing trace with hash 1974528386, now seen corresponding path program 1 times [2020-10-11 18:36:27,949 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 18:36:27,949 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [129697632] [2020-10-11 18:36:27,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 18:36:27,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 18:36:28,098 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 18:36:28,098 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [129697632] [2020-10-11 18:36:28,099 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 18:36:28,099 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-11 18:36:28,099 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1953236807] [2020-10-11 18:36:28,100 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-11 18:36:28,101 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 18:36:28,101 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-11 18:36:28,102 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-10-11 18:36:28,345 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 70 [2020-10-11 18:36:28,345 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 54 transitions, 138 flow. Second operand 7 states. [2020-10-11 18:36:28,345 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-11 18:36:28,346 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 70 [2020-10-11 18:36:28,346 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-11 18:36:28,508 INFO L129 PetriNetUnfolder]: 4/75 cut-off events. [2020-10-11 18:36:28,508 INFO L130 PetriNetUnfolder]: For 23/30 co-relation queries the response was YES. [2020-10-11 18:36:28,509 INFO L80 FinitePrefix]: Finished finitePrefix Result has 142 conditions, 75 events. 4/75 cut-off events. For 23/30 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 117 event pairs, 0 based on Foata normal form. 2/76 useless extension candidates. Maximal degree in co-relation 126. Up to 7 conditions per place. [2020-10-11 18:36:28,510 INFO L132 encePairwiseOnDemand]: 62/70 looper letters, 6 selfloop transitions, 4 changer transitions 12/66 dead transitions. [2020-10-11 18:36:28,510 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 66 transitions, 233 flow [2020-10-11 18:36:28,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-11 18:36:28,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2020-10-11 18:36:28,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 604 transitions. [2020-10-11 18:36:28,514 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.8628571428571429 [2020-10-11 18:36:28,514 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 604 transitions. [2020-10-11 18:36:28,514 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 604 transitions. [2020-10-11 18:36:28,515 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-11 18:36:28,515 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 604 transitions. [2020-10-11 18:36:28,517 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 11 states. [2020-10-11 18:36:28,519 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 11 states. [2020-10-11 18:36:28,519 INFO L81 ComplementDD]: Finished complementDD. Result 11 states. [2020-10-11 18:36:28,519 INFO L185 Difference]: Start difference. First operand has 77 places, 54 transitions, 138 flow. Second operand 10 states and 604 transitions. [2020-10-11 18:36:28,519 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 66 transitions, 233 flow [2020-10-11 18:36:28,521 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 66 transitions, 199 flow, removed 14 selfloop flow, removed 8 redundant places. [2020-10-11 18:36:28,524 INFO L241 Difference]: Finished difference. Result has 80 places, 54 transitions, 152 flow [2020-10-11 18:36:28,524 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=70, PETRI_DIFFERENCE_MINUEND_FLOW=122, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=54, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=152, PETRI_PLACES=80, PETRI_TRANSITIONS=54} [2020-10-11 18:36:28,524 INFO L341 CegarLoopForPetriNet]: 65 programPoint places, 15 predicate places. [2020-10-11 18:36:28,525 INFO L481 AbstractCegarLoop]: Abstraction has has 80 places, 54 transitions, 152 flow [2020-10-11 18:36:28,525 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-11 18:36:28,525 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-11 18:36:28,525 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 18:36:28,525 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-11 18:36:28,526 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 18:36:28,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 18:36:28,526 INFO L82 PathProgramCache]: Analyzing trace with hash 1005371766, now seen corresponding path program 1 times [2020-10-11 18:36:28,526 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 18:36:28,527 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1812908216] [2020-10-11 18:36:28,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 18:36:28,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 18:36:28,647 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 18:36:28,648 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1812908216] [2020-10-11 18:36:28,648 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 18:36:28,648 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-11 18:36:28,649 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [823667387] [2020-10-11 18:36:28,649 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-11 18:36:28,649 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 18:36:28,650 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-11 18:36:28,650 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-11 18:36:28,833 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 59 out of 70 [2020-10-11 18:36:28,833 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 54 transitions, 152 flow. Second operand 6 states. [2020-10-11 18:36:28,834 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-11 18:36:28,834 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 59 of 70 [2020-10-11 18:36:28,834 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-11 18:36:28,960 INFO L129 PetriNetUnfolder]: 11/89 cut-off events. [2020-10-11 18:36:28,961 INFO L130 PetriNetUnfolder]: For 59/62 co-relation queries the response was YES. [2020-10-11 18:36:28,961 INFO L80 FinitePrefix]: Finished finitePrefix Result has 190 conditions, 89 events. 11/89 cut-off events. For 59/62 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 180 event pairs, 5 based on Foata normal form. 3/91 useless extension candidates. Maximal degree in co-relation 165. Up to 19 conditions per place. [2020-10-11 18:36:28,962 INFO L132 encePairwiseOnDemand]: 64/70 looper letters, 7 selfloop transitions, 2 changer transitions 13/67 dead transitions. [2020-10-11 18:36:28,963 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 67 transitions, 246 flow [2020-10-11 18:36:28,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-11 18:36:28,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2020-10-11 18:36:28,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 555 transitions. [2020-10-11 18:36:28,966 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.8809523809523809 [2020-10-11 18:36:28,966 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 555 transitions. [2020-10-11 18:36:28,966 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 555 transitions. [2020-10-11 18:36:28,967 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-11 18:36:28,967 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 555 transitions. [2020-10-11 18:36:28,968 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 10 states. [2020-10-11 18:36:28,970 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 10 states. [2020-10-11 18:36:28,970 INFO L81 ComplementDD]: Finished complementDD. Result 10 states. [2020-10-11 18:36:28,971 INFO L185 Difference]: Start difference. First operand has 80 places, 54 transitions, 152 flow. Second operand 9 states and 555 transitions. [2020-10-11 18:36:28,971 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 67 transitions, 246 flow [2020-10-11 18:36:28,973 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 67 transitions, 194 flow, removed 20 selfloop flow, removed 11 redundant places. [2020-10-11 18:36:28,975 INFO L241 Difference]: Finished difference. Result has 78 places, 54 transitions, 142 flow [2020-10-11 18:36:28,975 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=70, PETRI_DIFFERENCE_MINUEND_FLOW=122, PETRI_DIFFERENCE_MINUEND_PLACES=63, 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=142, PETRI_PLACES=78, PETRI_TRANSITIONS=54} [2020-10-11 18:36:28,976 INFO L341 CegarLoopForPetriNet]: 65 programPoint places, 13 predicate places. [2020-10-11 18:36:28,976 INFO L481 AbstractCegarLoop]: Abstraction has has 78 places, 54 transitions, 142 flow [2020-10-11 18:36:28,976 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-11 18:36:28,976 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-11 18:36:28,976 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] [2020-10-11 18:36:28,976 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-11 18:36:28,977 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 18:36:28,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 18:36:28,977 INFO L82 PathProgramCache]: Analyzing trace with hash -723384963, now seen corresponding path program 1 times [2020-10-11 18:36:28,977 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 18:36:28,978 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [854192341] [2020-10-11 18:36:28,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 18:36:28,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 18:36:29,060 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 18:36:29,060 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [854192341] [2020-10-11 18:36:29,060 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 18:36:29,061 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-11 18:36:29,061 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1664627581] [2020-10-11 18:36:29,061 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-11 18:36:29,062 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 18:36:29,062 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-11 18:36:29,062 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-11 18:36:29,274 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 59 out of 70 [2020-10-11 18:36:29,275 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 54 transitions, 142 flow. Second operand 6 states. [2020-10-11 18:36:29,275 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-11 18:36:29,275 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 59 of 70 [2020-10-11 18:36:29,275 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-11 18:36:29,385 INFO L129 PetriNetUnfolder]: 3/68 cut-off events. [2020-10-11 18:36:29,385 INFO L130 PetriNetUnfolder]: For 20/21 co-relation queries the response was YES. [2020-10-11 18:36:29,386 INFO L80 FinitePrefix]: Finished finitePrefix Result has 129 conditions, 68 events. 3/68 cut-off events. For 20/21 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 84 event pairs, 0 based on Foata normal form. 2/70 useless extension candidates. Maximal degree in co-relation 113. Up to 9 conditions per place. [2020-10-11 18:36:29,387 INFO L132 encePairwiseOnDemand]: 64/70 looper letters, 7 selfloop transitions, 2 changer transitions 10/64 dead transitions. [2020-10-11 18:36:29,387 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 64 transitions, 220 flow [2020-10-11 18:36:29,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-11 18:36:29,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2020-10-11 18:36:29,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 552 transitions. [2020-10-11 18:36:29,390 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.8761904761904762 [2020-10-11 18:36:29,390 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 552 transitions. [2020-10-11 18:36:29,390 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 552 transitions. [2020-10-11 18:36:29,390 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-11 18:36:29,391 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 552 transitions. [2020-10-11 18:36:29,392 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 10 states. [2020-10-11 18:36:29,393 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 10 states. [2020-10-11 18:36:29,394 INFO L81 ComplementDD]: Finished complementDD. Result 10 states. [2020-10-11 18:36:29,394 INFO L185 Difference]: Start difference. First operand has 78 places, 54 transitions, 142 flow. Second operand 9 states and 552 transitions. [2020-10-11 18:36:29,394 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 64 transitions, 220 flow [2020-10-11 18:36:29,395 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 64 transitions, 188 flow, removed 14 selfloop flow, removed 8 redundant places. [2020-10-11 18:36:29,397 INFO L241 Difference]: Finished difference. Result has 79 places, 54 transitions, 146 flow [2020-10-11 18:36:29,397 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=70, PETRI_DIFFERENCE_MINUEND_FLOW=126, PETRI_DIFFERENCE_MINUEND_PLACES=64, 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=146, PETRI_PLACES=79, PETRI_TRANSITIONS=54} [2020-10-11 18:36:29,398 INFO L341 CegarLoopForPetriNet]: 65 programPoint places, 14 predicate places. [2020-10-11 18:36:29,398 INFO L481 AbstractCegarLoop]: Abstraction has has 79 places, 54 transitions, 146 flow [2020-10-11 18:36:29,398 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-11 18:36:29,398 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-11 18:36:29,398 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 18:36:29,398 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-11 18:36:29,399 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 18:36:29,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 18:36:29,399 INFO L82 PathProgramCache]: Analyzing trace with hash -1907931027, now seen corresponding path program 1 times [2020-10-11 18:36:29,399 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 18:36:29,399 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2070883316] [2020-10-11 18:36:29,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 18:36:29,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 18:36:29,500 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 18:36:29,501 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2070883316] [2020-10-11 18:36:29,501 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 18:36:29,501 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-11 18:36:29,501 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1217097020] [2020-10-11 18:36:29,502 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-11 18:36:29,502 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 18:36:29,502 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-11 18:36:29,502 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-10-11 18:36:29,744 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 57 out of 70 [2020-10-11 18:36:29,745 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 54 transitions, 146 flow. Second operand 7 states. [2020-10-11 18:36:29,745 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-11 18:36:29,745 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 57 of 70 [2020-10-11 18:36:29,745 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-11 18:36:29,839 INFO L129 PetriNetUnfolder]: 1/84 cut-off events. [2020-10-11 18:36:29,840 INFO L130 PetriNetUnfolder]: For 29/44 co-relation queries the response was YES. [2020-10-11 18:36:29,840 INFO L80 FinitePrefix]: Finished finitePrefix Result has 155 conditions, 84 events. 1/84 cut-off events. For 29/44 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 210 event pairs, 0 based on Foata normal form. 3/86 useless extension candidates. Maximal degree in co-relation 138. Up to 9 conditions per place. [2020-10-11 18:36:29,841 INFO L132 encePairwiseOnDemand]: 62/70 looper letters, 8 selfloop transitions, 4 changer transitions 5/60 dead transitions. [2020-10-11 18:36:29,841 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 60 transitions, 209 flow [2020-10-11 18:36:29,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-11 18:36:29,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2020-10-11 18:36:29,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 417 transitions. [2020-10-11 18:36:29,864 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.8510204081632653 [2020-10-11 18:36:29,864 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 417 transitions. [2020-10-11 18:36:29,864 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 417 transitions. [2020-10-11 18:36:29,865 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-11 18:36:29,865 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 417 transitions. [2020-10-11 18:36:29,866 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 8 states. [2020-10-11 18:36:29,867 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 8 states. [2020-10-11 18:36:29,867 INFO L81 ComplementDD]: Finished complementDD. Result 8 states. [2020-10-11 18:36:29,867 INFO L185 Difference]: Start difference. First operand has 79 places, 54 transitions, 146 flow. Second operand 7 states and 417 transitions. [2020-10-11 18:36:29,867 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 60 transitions, 209 flow [2020-10-11 18:36:29,869 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 60 transitions, 183 flow, removed 10 selfloop flow, removed 8 redundant places. [2020-10-11 18:36:29,870 INFO L241 Difference]: Finished difference. Result has 75 places, 54 transitions, 150 flow [2020-10-11 18:36:29,870 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=70, PETRI_DIFFERENCE_MINUEND_FLOW=130, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=54, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=150, PETRI_PLACES=75, PETRI_TRANSITIONS=54} [2020-10-11 18:36:29,871 INFO L341 CegarLoopForPetriNet]: 65 programPoint places, 10 predicate places. [2020-10-11 18:36:29,871 INFO L481 AbstractCegarLoop]: Abstraction has has 75 places, 54 transitions, 150 flow [2020-10-11 18:36:29,871 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-11 18:36:29,871 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-11 18:36:29,871 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 18:36:29,872 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-11 18:36:29,872 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 18:36:29,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 18:36:29,872 INFO L82 PathProgramCache]: Analyzing trace with hash -1287905611, now seen corresponding path program 2 times [2020-10-11 18:36:29,872 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 18:36:29,873 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1533839769] [2020-10-11 18:36:29,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 18:36:29,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 18:36:29,969 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 18:36:29,970 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1533839769] [2020-10-11 18:36:29,970 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 18:36:29,970 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-11 18:36:29,970 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1837730039] [2020-10-11 18:36:29,971 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-11 18:36:29,971 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 18:36:29,971 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-11 18:36:29,972 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-11 18:36:30,089 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 57 out of 70 [2020-10-11 18:36:30,090 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 54 transitions, 150 flow. Second operand 6 states. [2020-10-11 18:36:30,090 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-11 18:36:30,090 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 57 of 70 [2020-10-11 18:36:30,090 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-11 18:36:30,241 INFO L129 PetriNetUnfolder]: 91/295 cut-off events. [2020-10-11 18:36:30,241 INFO L130 PetriNetUnfolder]: For 47/47 co-relation queries the response was YES. [2020-10-11 18:36:30,243 INFO L80 FinitePrefix]: Finished finitePrefix Result has 538 conditions, 295 events. 91/295 cut-off events. For 47/47 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 1472 event pairs, 10 based on Foata normal form. 8/296 useless extension candidates. Maximal degree in co-relation 507. Up to 81 conditions per place. [2020-10-11 18:36:30,245 INFO L132 encePairwiseOnDemand]: 61/70 looper letters, 10 selfloop transitions, 6 changer transitions 19/79 dead transitions. [2020-10-11 18:36:30,245 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 79 transitions, 270 flow [2020-10-11 18:36:30,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-11 18:36:30,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2020-10-11 18:36:30,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 550 transitions. [2020-10-11 18:36:30,248 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.873015873015873 [2020-10-11 18:36:30,248 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 550 transitions. [2020-10-11 18:36:30,248 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 550 transitions. [2020-10-11 18:36:30,249 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-11 18:36:30,249 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 550 transitions. [2020-10-11 18:36:30,250 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 10 states. [2020-10-11 18:36:30,252 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 10 states. [2020-10-11 18:36:30,252 INFO L81 ComplementDD]: Finished complementDD. Result 10 states. [2020-10-11 18:36:30,252 INFO L185 Difference]: Start difference. First operand has 75 places, 54 transitions, 150 flow. Second operand 9 states and 550 transitions. [2020-10-11 18:36:30,252 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 79 transitions, 270 flow [2020-10-11 18:36:30,254 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 79 transitions, 250 flow, removed 5 selfloop flow, removed 7 redundant places. [2020-10-11 18:36:30,256 INFO L241 Difference]: Finished difference. Result has 79 places, 57 transitions, 186 flow [2020-10-11 18:36:30,256 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=70, PETRI_DIFFERENCE_MINUEND_FLOW=130, PETRI_DIFFERENCE_MINUEND_PLACES=65, 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=186, PETRI_PLACES=79, PETRI_TRANSITIONS=57} [2020-10-11 18:36:30,257 INFO L341 CegarLoopForPetriNet]: 65 programPoint places, 14 predicate places. [2020-10-11 18:36:30,257 INFO L481 AbstractCegarLoop]: Abstraction has has 79 places, 57 transitions, 186 flow [2020-10-11 18:36:30,257 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-11 18:36:30,257 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-11 18:36:30,257 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] [2020-10-11 18:36:30,257 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-11 18:36:30,257 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 18:36:30,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 18:36:30,258 INFO L82 PathProgramCache]: Analyzing trace with hash 1360421556, now seen corresponding path program 1 times [2020-10-11 18:36:30,258 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 18:36:30,259 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1787950614] [2020-10-11 18:36:30,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 18:36:30,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 18:36:30,357 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 18:36:30,357 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1787950614] [2020-10-11 18:36:30,358 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 18:36:30,358 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-11 18:36:30,358 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1626759677] [2020-10-11 18:36:30,358 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-11 18:36:30,359 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 18:36:30,359 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-11 18:36:30,359 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-10-11 18:36:30,460 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 57 out of 70 [2020-10-11 18:36:30,461 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 57 transitions, 186 flow. Second operand 7 states. [2020-10-11 18:36:30,461 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-11 18:36:30,461 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 57 of 70 [2020-10-11 18:36:30,461 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-11 18:36:30,644 INFO L129 PetriNetUnfolder]: 52/195 cut-off events. [2020-10-11 18:36:30,644 INFO L130 PetriNetUnfolder]: For 269/289 co-relation queries the response was YES. [2020-10-11 18:36:30,645 INFO L80 FinitePrefix]: Finished finitePrefix Result has 589 conditions, 195 events. 52/195 cut-off events. For 269/289 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 756 event pairs, 0 based on Foata normal form. 13/206 useless extension candidates. Maximal degree in co-relation 554. Up to 75 conditions per place. [2020-10-11 18:36:30,646 INFO L132 encePairwiseOnDemand]: 61/70 looper letters, 10 selfloop transitions, 9 changer transitions 19/82 dead transitions. [2020-10-11 18:36:30,647 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 82 transitions, 439 flow [2020-10-11 18:36:30,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-11 18:36:30,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2020-10-11 18:36:30,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 610 transitions. [2020-10-11 18:36:30,649 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.8714285714285714 [2020-10-11 18:36:30,649 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 610 transitions. [2020-10-11 18:36:30,650 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 610 transitions. [2020-10-11 18:36:30,650 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-11 18:36:30,650 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 610 transitions. [2020-10-11 18:36:30,652 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 11 states. [2020-10-11 18:36:30,654 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 11 states. [2020-10-11 18:36:30,654 INFO L81 ComplementDD]: Finished complementDD. Result 11 states. [2020-10-11 18:36:30,654 INFO L185 Difference]: Start difference. First operand has 79 places, 57 transitions, 186 flow. Second operand 10 states and 610 transitions. [2020-10-11 18:36:30,654 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 82 transitions, 439 flow [2020-10-11 18:36:30,656 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 82 transitions, 415 flow, removed 7 selfloop flow, removed 5 redundant places. [2020-10-11 18:36:30,658 INFO L241 Difference]: Finished difference. Result has 85 places, 60 transitions, 254 flow [2020-10-11 18:36:30,659 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=70, PETRI_DIFFERENCE_MINUEND_FLOW=172, PETRI_DIFFERENCE_MINUEND_PLACES=70, 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=254, PETRI_PLACES=85, PETRI_TRANSITIONS=60} [2020-10-11 18:36:30,659 INFO L341 CegarLoopForPetriNet]: 65 programPoint places, 20 predicate places. [2020-10-11 18:36:30,659 INFO L481 AbstractCegarLoop]: Abstraction has has 85 places, 60 transitions, 254 flow [2020-10-11 18:36:30,659 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-11 18:36:30,659 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-11 18:36:30,659 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] [2020-10-11 18:36:30,660 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-11 18:36:30,660 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 18:36:30,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 18:36:30,660 INFO L82 PathProgramCache]: Analyzing trace with hash -185714175, now seen corresponding path program 1 times [2020-10-11 18:36:30,660 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 18:36:30,661 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [753523301] [2020-10-11 18:36:30,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 18:36:30,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 18:36:30,782 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 18:36:30,783 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [753523301] [2020-10-11 18:36:30,783 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 18:36:30,783 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-11 18:36:30,784 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [90569144] [2020-10-11 18:36:30,784 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-11 18:36:30,784 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 18:36:30,784 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-11 18:36:30,785 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-10-11 18:36:30,951 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 57 out of 70 [2020-10-11 18:36:30,952 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 places, 60 transitions, 254 flow. Second operand 8 states. [2020-10-11 18:36:30,952 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-11 18:36:30,953 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 57 of 70 [2020-10-11 18:36:30,953 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-11 18:36:31,125 INFO L129 PetriNetUnfolder]: 16/100 cut-off events. [2020-10-11 18:36:31,125 INFO L130 PetriNetUnfolder]: For 339/355 co-relation queries the response was YES. [2020-10-11 18:36:31,126 INFO L80 FinitePrefix]: Finished finitePrefix Result has 347 conditions, 100 events. 16/100 cut-off events. For 339/355 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 218 event pairs, 0 based on Foata normal form. 12/111 useless extension candidates. Maximal degree in co-relation 320. Up to 30 conditions per place. [2020-10-11 18:36:31,127 INFO L132 encePairwiseOnDemand]: 61/70 looper letters, 4 selfloop transitions, 12 changer transitions 13/73 dead transitions. [2020-10-11 18:36:31,127 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 73 transitions, 438 flow [2020-10-11 18:36:31,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-11 18:36:31,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2020-10-11 18:36:31,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 658 transitions. [2020-10-11 18:36:31,130 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.8545454545454545 [2020-10-11 18:36:31,130 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 658 transitions. [2020-10-11 18:36:31,131 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 658 transitions. [2020-10-11 18:36:31,131 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-11 18:36:31,132 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 658 transitions. [2020-10-11 18:36:31,133 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 12 states. [2020-10-11 18:36:31,135 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 12 states. [2020-10-11 18:36:31,136 INFO L81 ComplementDD]: Finished complementDD. Result 12 states. [2020-10-11 18:36:31,136 INFO L185 Difference]: Start difference. First operand has 85 places, 60 transitions, 254 flow. Second operand 11 states and 658 transitions. [2020-10-11 18:36:31,136 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 91 places, 73 transitions, 438 flow [2020-10-11 18:36:31,138 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 73 transitions, 335 flow, removed 40 selfloop flow, removed 11 redundant places. [2020-10-11 18:36:31,140 INFO L241 Difference]: Finished difference. Result has 86 places, 60 transitions, 236 flow [2020-10-11 18:36:31,141 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=70, PETRI_DIFFERENCE_MINUEND_FLOW=190, PETRI_DIFFERENCE_MINUEND_PLACES=70, 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=236, PETRI_PLACES=86, PETRI_TRANSITIONS=60} [2020-10-11 18:36:31,141 INFO L341 CegarLoopForPetriNet]: 65 programPoint places, 21 predicate places. [2020-10-11 18:36:31,141 INFO L481 AbstractCegarLoop]: Abstraction has has 86 places, 60 transitions, 236 flow [2020-10-11 18:36:31,142 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-11 18:36:31,142 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-11 18:36:31,142 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 18:36:31,142 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-11 18:36:31,142 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 18:36:31,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 18:36:31,143 INFO L82 PathProgramCache]: Analyzing trace with hash 1549882754, now seen corresponding path program 1 times [2020-10-11 18:36:31,143 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 18:36:31,143 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1645401467] [2020-10-11 18:36:31,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 18:36:31,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 18:36:31,303 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 18:36:31,303 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1645401467] [2020-10-11 18:36:31,303 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 18:36:31,304 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-11 18:36:31,304 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1589823331] [2020-10-11 18:36:31,304 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-11 18:36:31,304 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 18:36:31,305 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-11 18:36:31,305 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-10-11 18:36:31,583 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 57 out of 70 [2020-10-11 18:36:31,583 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 86 places, 60 transitions, 236 flow. Second operand 7 states. [2020-10-11 18:36:31,584 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-11 18:36:31,584 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 57 of 70 [2020-10-11 18:36:31,584 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-11 18:36:31,665 INFO L129 PetriNetUnfolder]: 10/111 cut-off events. [2020-10-11 18:36:31,665 INFO L130 PetriNetUnfolder]: For 134/143 co-relation queries the response was YES. [2020-10-11 18:36:31,665 INFO L80 FinitePrefix]: Finished finitePrefix Result has 269 conditions, 111 events. 10/111 cut-off events. For 134/143 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 272 event pairs, 0 based on Foata normal form. 1/110 useless extension candidates. Maximal degree in co-relation 230. Up to 21 conditions per place. [2020-10-11 18:36:31,666 INFO L132 encePairwiseOnDemand]: 63/70 looper letters, 9 selfloop transitions, 2 changer transitions 6/66 dead transitions. [2020-10-11 18:36:31,666 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 89 places, 66 transitions, 283 flow [2020-10-11 18:36:31,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-11 18:36:31,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2020-10-11 18:36:31,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 474 transitions. [2020-10-11 18:36:31,669 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.8464285714285714 [2020-10-11 18:36:31,669 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 474 transitions. [2020-10-11 18:36:31,669 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 474 transitions. [2020-10-11 18:36:31,670 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-11 18:36:31,670 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 474 transitions. [2020-10-11 18:36:31,671 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 9 states. [2020-10-11 18:36:31,672 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 9 states. [2020-10-11 18:36:31,673 INFO L81 ComplementDD]: Finished complementDD. Result 9 states. [2020-10-11 18:36:31,673 INFO L185 Difference]: Start difference. First operand has 86 places, 60 transitions, 236 flow. Second operand 8 states and 474 transitions. [2020-10-11 18:36:31,673 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 89 places, 66 transitions, 283 flow [2020-10-11 18:36:31,674 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 66 transitions, 201 flow, removed 22 selfloop flow, removed 15 redundant places. [2020-10-11 18:36:31,676 INFO L241 Difference]: Finished difference. Result has 79 places, 60 transitions, 170 flow [2020-10-11 18:36:31,677 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=70, PETRI_DIFFERENCE_MINUEND_FLOW=154, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=170, PETRI_PLACES=79, PETRI_TRANSITIONS=60} [2020-10-11 18:36:31,677 INFO L341 CegarLoopForPetriNet]: 65 programPoint places, 14 predicate places. [2020-10-11 18:36:31,677 INFO L481 AbstractCegarLoop]: Abstraction has has 79 places, 60 transitions, 170 flow [2020-10-11 18:36:31,677 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-11 18:36:31,677 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-11 18:36:31,677 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 18:36:31,678 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-11 18:36:31,678 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 18:36:31,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 18:36:31,680 INFO L82 PathProgramCache]: Analyzing trace with hash -413385086, now seen corresponding path program 2 times [2020-10-11 18:36:31,681 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 18:36:31,685 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [216568322] [2020-10-11 18:36:31,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 18:36:31,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 18:36:31,810 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 18:36:31,811 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [216568322] [2020-10-11 18:36:31,811 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 18:36:31,811 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-11 18:36:31,812 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [350249626] [2020-10-11 18:36:31,812 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-11 18:36:31,812 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 18:36:31,812 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-11 18:36:31,813 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-10-11 18:36:32,098 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 57 out of 70 [2020-10-11 18:36:32,099 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 60 transitions, 170 flow. Second operand 7 states. [2020-10-11 18:36:32,099 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-11 18:36:32,099 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 57 of 70 [2020-10-11 18:36:32,099 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-11 18:36:32,176 INFO L129 PetriNetUnfolder]: 5/69 cut-off events. [2020-10-11 18:36:32,176 INFO L130 PetriNetUnfolder]: For 5/6 co-relation queries the response was YES. [2020-10-11 18:36:32,176 INFO L80 FinitePrefix]: Finished finitePrefix Result has 117 conditions, 69 events. 5/69 cut-off events. For 5/6 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 81 event pairs, 0 based on Foata normal form. 1/69 useless extension candidates. Maximal degree in co-relation 109. Up to 6 conditions per place. [2020-10-11 18:36:32,177 INFO L132 encePairwiseOnDemand]: 64/70 looper letters, 0 selfloop transitions, 0 changer transitions 58/58 dead transitions. [2020-10-11 18:36:32,177 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 58 transitions, 184 flow [2020-10-11 18:36:32,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-11 18:36:32,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2020-10-11 18:36:32,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 410 transitions. [2020-10-11 18:36:32,179 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.8367346938775511 [2020-10-11 18:36:32,179 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 410 transitions. [2020-10-11 18:36:32,179 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 410 transitions. [2020-10-11 18:36:32,179 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-11 18:36:32,179 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 410 transitions. [2020-10-11 18:36:32,180 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 8 states. [2020-10-11 18:36:32,182 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 8 states. [2020-10-11 18:36:32,182 INFO L81 ComplementDD]: Finished complementDD. Result 8 states. [2020-10-11 18:36:32,182 INFO L185 Difference]: Start difference. First operand has 79 places, 60 transitions, 170 flow. Second operand 7 states and 410 transitions. [2020-10-11 18:36:32,182 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 58 transitions, 184 flow [2020-10-11 18:36:32,183 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 58 transitions, 174 flow, removed 3 selfloop flow, removed 5 redundant places. [2020-10-11 18:36:32,184 INFO L241 Difference]: Finished difference. Result has 73 places, 0 transitions, 0 flow [2020-10-11 18:36:32,184 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=70, PETRI_DIFFERENCE_MINUEND_FLOW=154, PETRI_DIFFERENCE_MINUEND_PLACES=67, 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=73, PETRI_TRANSITIONS=0} [2020-10-11 18:36:32,184 INFO L341 CegarLoopForPetriNet]: 65 programPoint places, 8 predicate places. [2020-10-11 18:36:32,184 INFO L481 AbstractCegarLoop]: Abstraction has has 73 places, 0 transitions, 0 flow [2020-10-11 18:36:32,184 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-11 18:36:32,185 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-11 18:36:32,191 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 06:36:32 BasicIcfg [2020-10-11 18:36:32,191 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-11 18:36:32,194 INFO L168 Benchmark]: Toolchain (without parser) took 7116.18 ms. Allocated memory was 248.0 MB in the beginning and 428.9 MB in the end (delta: 180.9 MB). Free memory was 203.3 MB in the beginning and 249.6 MB in the end (delta: -46.3 MB). Peak memory consumption was 134.6 MB. Max. memory is 14.2 GB. [2020-10-11 18:36:32,194 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 248.0 MB. Free memory is still 224.4 MB. There was no memory consumed. Max. memory is 14.2 GB. [2020-10-11 18:36:32,195 INFO L168 Benchmark]: CACSL2BoogieTranslator took 661.51 ms. Allocated memory was 248.0 MB in the beginning and 303.6 MB in the end (delta: 55.6 MB). Free memory was 203.3 MB in the beginning and 254.5 MB in the end (delta: -51.1 MB). Peak memory consumption was 26.8 MB. Max. memory is 14.2 GB. [2020-10-11 18:36:32,196 INFO L168 Benchmark]: Boogie Procedure Inliner took 48.20 ms. Allocated memory is still 303.6 MB. Free memory was 254.5 MB in the beginning and 252.0 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. [2020-10-11 18:36:32,196 INFO L168 Benchmark]: Boogie Preprocessor took 25.25 ms. Allocated memory is still 303.6 MB. Free memory was 252.0 MB in the beginning and 249.4 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. [2020-10-11 18:36:32,197 INFO L168 Benchmark]: RCFGBuilder took 481.13 ms. Allocated memory is still 303.6 MB. Free memory was 249.4 MB in the beginning and 227.6 MB in the end (delta: 21.8 MB). Peak memory consumption was 21.8 MB. Max. memory is 14.2 GB. [2020-10-11 18:36:32,198 INFO L168 Benchmark]: TraceAbstraction took 5894.52 ms. Allocated memory was 303.6 MB in the beginning and 428.9 MB in the end (delta: 125.3 MB). Free memory was 227.6 MB in the beginning and 249.6 MB in the end (delta: -22.0 MB). Peak memory consumption was 103.3 MB. Max. memory is 14.2 GB. [2020-10-11 18:36:32,201 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 248.0 MB. Free memory is still 224.4 MB. There was no memory consumed. Max. memory is 14.2 GB. * CACSL2BoogieTranslator took 661.51 ms. Allocated memory was 248.0 MB in the beginning and 303.6 MB in the end (delta: 55.6 MB). Free memory was 203.3 MB in the beginning and 254.5 MB in the end (delta: -51.1 MB). Peak memory consumption was 26.8 MB. Max. memory is 14.2 GB. * Boogie Procedure Inliner took 48.20 ms. Allocated memory is still 303.6 MB. Free memory was 254.5 MB in the beginning and 252.0 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. * Boogie Preprocessor took 25.25 ms. Allocated memory is still 303.6 MB. Free memory was 252.0 MB in the beginning and 249.4 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. * RCFGBuilder took 481.13 ms. Allocated memory is still 303.6 MB. Free memory was 249.4 MB in the beginning and 227.6 MB in the end (delta: 21.8 MB). Peak memory consumption was 21.8 MB. Max. memory is 14.2 GB. * TraceAbstraction took 5894.52 ms. Allocated memory was 303.6 MB in the beginning and 428.9 MB in the end (delta: 125.3 MB). Free memory was 227.6 MB in the beginning and 249.6 MB in the end (delta: -22.0 MB). Peak memory consumption was 103.3 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: 5.7s, OverallIterations: 11, TraceHistogramMax: 1, AutomataDifference: 3.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 315 SDtfs, 304 SDslu, 819 SDs, 0 SdLazy, 798 SolverSat, 113 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 130 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 108 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 1.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=254occurred in iteration=8, 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, 0.2s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 473 NumberOfCodeBlocks, 473 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 462 ConstructedInterpolants, 0 QuantifiedInterpolants, 54616 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...