/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/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-SemanticLbe-SemanticLooper.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe001_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-7bb8cbd [2020-10-16 05:00:44,804 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-16 05:00:44,807 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-16 05:00:44,846 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-16 05:00:44,847 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-16 05:00:44,855 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-16 05:00:44,858 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-16 05:00:44,861 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-16 05:00:44,864 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-16 05:00:44,867 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-16 05:00:44,867 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-16 05:00:44,868 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-16 05:00:44,868 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-16 05:00:44,871 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-16 05:00:44,874 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-16 05:00:44,875 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-16 05:00:44,876 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-16 05:00:44,877 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-16 05:00:44,881 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-16 05:00:44,883 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-16 05:00:44,887 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-16 05:00:44,888 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-16 05:00:44,889 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-16 05:00:44,890 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-16 05:00:44,906 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-16 05:00:44,906 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-16 05:00:44,907 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-16 05:00:44,908 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-16 05:00:44,910 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-16 05:00:44,911 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-16 05:00:44,911 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-16 05:00:44,912 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-16 05:00:44,915 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-16 05:00:44,919 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-16 05:00:44,920 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-16 05:00:44,921 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-16 05:00:44,921 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-16 05:00:44,922 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-16 05:00:44,922 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-16 05:00:44,923 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-16 05:00:44,925 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-16 05:00:44,927 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-SemanticLbe-SemanticLooper.epf [2020-10-16 05:00:44,971 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-16 05:00:44,971 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-16 05:00:44,972 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-16 05:00:44,973 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-16 05:00:44,973 INFO L138 SettingsManager]: * Use SBE=true [2020-10-16 05:00:44,973 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-16 05:00:44,973 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-16 05:00:44,973 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-16 05:00:44,974 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-16 05:00:44,974 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-16 05:00:44,978 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-16 05:00:44,978 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-16 05:00:44,979 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-16 05:00:44,979 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-16 05:00:44,979 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-16 05:00:44,979 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-16 05:00:44,979 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-16 05:00:44,979 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-16 05:00:44,980 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-16 05:00:44,980 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-16 05:00:44,980 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-16 05:00:44,980 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-16 05:00:44,980 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-16 05:00:44,981 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-16 05:00:44,981 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-16 05:00:44,981 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-16 05:00:44,981 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-16 05:00:44,981 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2020-10-16 05:00:44,981 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-16 05:00:45,273 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-16 05:00:45,285 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-16 05:00:45,288 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-16 05:00:45,290 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-16 05:00:45,290 INFO L275 PluginConnector]: CDTParser initialized [2020-10-16 05:00:45,291 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe001_tso.oepc.i [2020-10-16 05:00:45,368 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b686db828/58130c2414a74a368148a86c708c9b69/FLAG404ef64f8 [2020-10-16 05:00:45,926 INFO L306 CDTParser]: Found 1 translation units. [2020-10-16 05:00:45,927 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe001_tso.oepc.i [2020-10-16 05:00:45,944 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b686db828/58130c2414a74a368148a86c708c9b69/FLAG404ef64f8 [2020-10-16 05:00:46,210 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b686db828/58130c2414a74a368148a86c708c9b69 [2020-10-16 05:00:46,219 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-16 05:00:46,220 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-16 05:00:46,221 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-16 05:00:46,222 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-16 05:00:46,225 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-16 05:00:46,226 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 05:00:46" (1/1) ... [2020-10-16 05:00:46,228 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d6ec508 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:00:46, skipping insertion in model container [2020-10-16 05:00:46,229 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 05:00:46" (1/1) ... [2020-10-16 05:00:46,236 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-16 05:00:46,289 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-16 05:00:46,765 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-16 05:00:46,781 INFO L203 MainTranslator]: Completed pre-run [2020-10-16 05:00:46,859 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-16 05:00:46,930 INFO L208 MainTranslator]: Completed translation [2020-10-16 05:00:46,930 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:00:46 WrapperNode [2020-10-16 05:00:46,930 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-16 05:00:46,931 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-16 05:00:46,931 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-16 05:00:46,932 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-16 05:00:46,940 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:00:46" (1/1) ... [2020-10-16 05:00:46,957 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:00:46" (1/1) ... [2020-10-16 05:00:46,978 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-16 05:00:46,978 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-16 05:00:46,979 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-16 05:00:46,979 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-16 05:00:46,987 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:00:46" (1/1) ... [2020-10-16 05:00:46,987 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:00:46" (1/1) ... [2020-10-16 05:00:46,990 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:00:46" (1/1) ... [2020-10-16 05:00:46,991 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:00:46" (1/1) ... [2020-10-16 05:00:46,997 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:00:46" (1/1) ... [2020-10-16 05:00:47,000 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:00:46" (1/1) ... [2020-10-16 05:00:47,002 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:00:46" (1/1) ... [2020-10-16 05:00:47,005 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-16 05:00:47,006 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-16 05:00:47,006 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-16 05:00:47,006 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-16 05:00:47,007 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:00:46" (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 [2020-10-16 05:00:47,074 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-16 05:00:47,074 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-16 05:00:47,074 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-16 05:00:47,074 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-16 05:00:47,075 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-16 05:00:47,075 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-16 05:00:47,075 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-16 05:00:47,075 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-16 05:00:47,076 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-10-16 05:00:47,076 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-10-16 05:00:47,077 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-16 05:00:47,077 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-16 05:00:47,077 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-16 05:00:47,079 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-16 05:00:47,415 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-16 05:00:47,415 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-10-16 05:00:47,418 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 05:00:47 BoogieIcfgContainer [2020-10-16 05:00:47,418 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-16 05:00:47,420 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-16 05:00:47,420 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-16 05:00:47,423 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-16 05:00:47,423 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 05:00:46" (1/3) ... [2020-10-16 05:00:47,424 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@aa7693d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 05:00:47, skipping insertion in model container [2020-10-16 05:00:47,424 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:00:46" (2/3) ... [2020-10-16 05:00:47,425 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@aa7693d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 05:00:47, skipping insertion in model container [2020-10-16 05:00:47,425 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 05:00:47" (3/3) ... [2020-10-16 05:00:47,427 INFO L111 eAbstractionObserver]: Analyzing ICFG safe001_tso.oepc.i [2020-10-16 05:00:47,439 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-16 05:00:47,446 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-16 05:00:47,447 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-16 05:00:47,479 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:00:47,480 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:00:47,480 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:00:47,480 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:00:47,481 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:00:47,481 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:00:47,482 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:00:47,482 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:00:47,483 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:00:47,483 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:00:47,483 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:00:47,484 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:00:47,484 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:00:47,484 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:00:47,485 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:00:47,485 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:00:47,485 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:00:47,486 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:00:47,490 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:00:47,490 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:00:47,490 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:00:47,490 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:00:47,503 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:00:47,504 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:00:47,504 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:00:47,504 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:00:47,513 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:00:47,513 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:00:47,513 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:00:47,514 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:00:47,541 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-10-16 05:00:47,561 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-16 05:00:47,561 INFO L378 AbstractCegarLoop]: Hoare is false [2020-10-16 05:00:47,561 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-16 05:00:47,562 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-16 05:00:47,562 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-16 05:00:47,562 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-16 05:00:47,562 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-16 05:00:47,562 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-16 05:00:47,576 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 77 places, 69 transitions, 153 flow [2020-10-16 05:00:47,620 INFO L129 PetriNetUnfolder]: 2/66 cut-off events. [2020-10-16 05:00:47,620 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-16 05:00:47,627 INFO L80 FinitePrefix]: Finished finitePrefix Result has 76 conditions, 66 events. 2/66 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 54 event pairs, 0 based on Foata normal form. 0/63 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2020-10-16 05:00:47,628 INFO L82 GeneralOperation]: Start removeDead. Operand has 77 places, 69 transitions, 153 flow [2020-10-16 05:00:47,636 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 64 places, 55 transitions, 119 flow [2020-10-16 05:00:47,639 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-16 05:00:47,642 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 64 places, 55 transitions, 119 flow [2020-10-16 05:00:47,644 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 64 places, 55 transitions, 119 flow [2020-10-16 05:00:47,644 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 64 places, 55 transitions, 119 flow [2020-10-16 05:00:47,665 INFO L129 PetriNetUnfolder]: 1/55 cut-off events. [2020-10-16 05:00:47,666 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-16 05:00:47,666 INFO L80 FinitePrefix]: Finished finitePrefix Result has 65 conditions, 55 events. 1/55 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 45 event pairs, 0 based on Foata normal form. 0/54 useless extension candidates. Maximal degree in co-relation 44. Up to 2 conditions per place. [2020-10-16 05:00:47,668 INFO L117 LiptonReduction]: Number of co-enabled transitions 864 [2020-10-16 05:00:48,987 INFO L132 LiptonReduction]: Checked pairs total: 1587 [2020-10-16 05:00:48,987 INFO L134 LiptonReduction]: Total number of compositions: 40 [2020-10-16 05:00:48,990 INFO L182 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1352 [2020-10-16 05:00:48,999 INFO L129 PetriNetUnfolder]: 0/15 cut-off events. [2020-10-16 05:00:48,999 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-16 05:00:48,999 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 05:00:49,000 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 05:00:49,001 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 05:00:49,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 05:00:49,007 INFO L82 PathProgramCache]: Analyzing trace with hash -1628105853, now seen corresponding path program 1 times [2020-10-16 05:00:49,017 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 05:00:49,017 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1498735696] [2020-10-16 05:00:49,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 05:00:49,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 05:00:49,235 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 05:00:49,236 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1498735696] [2020-10-16 05:00:49,237 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 05:00:49,238 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-16 05:00:49,238 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1818491709] [2020-10-16 05:00:49,249 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 05:00:49,250 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 05:00:49,264 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 05:00:49,266 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 05:00:49,268 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 92 out of 109 [2020-10-16 05:00:49,270 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 27 places, 17 transitions, 43 flow. Second operand 3 states. [2020-10-16 05:00:49,271 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 05:00:49,271 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 92 of 109 [2020-10-16 05:00:49,273 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 05:00:49,294 INFO L129 PetriNetUnfolder]: 0/17 cut-off events. [2020-10-16 05:00:49,295 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-16 05:00:49,295 INFO L80 FinitePrefix]: Finished finitePrefix Result has 31 conditions, 17 events. 0/17 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 16 event pairs, 0 based on Foata normal form. 1/18 useless extension candidates. Maximal degree in co-relation 0. Up to 3 conditions per place. [2020-10-16 05:00:49,296 INFO L132 encePairwiseOnDemand]: 106/109 looper letters, 1 selfloop transitions, 2 changer transitions 0/17 dead transitions. [2020-10-16 05:00:49,296 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 29 places, 17 transitions, 49 flow [2020-10-16 05:00:49,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 05:00:49,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-10-16 05:00:49,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 280 transitions. [2020-10-16 05:00:49,313 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.8562691131498471 [2020-10-16 05:00:49,314 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 280 transitions. [2020-10-16 05:00:49,314 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 280 transitions. [2020-10-16 05:00:49,316 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 05:00:49,319 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 280 transitions. [2020-10-16 05:00:49,322 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 4 states. [2020-10-16 05:00:49,329 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 4 states. [2020-10-16 05:00:49,329 INFO L81 ComplementDD]: Finished complementDD. Result 4 states. [2020-10-16 05:00:49,331 INFO L185 Difference]: Start difference. First operand has 27 places, 17 transitions, 43 flow. Second operand 3 states and 280 transitions. [2020-10-16 05:00:49,332 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 29 places, 17 transitions, 49 flow [2020-10-16 05:00:49,335 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 26 places, 17 transitions, 46 flow, removed 0 selfloop flow, removed 3 redundant places. [2020-10-16 05:00:49,337 INFO L241 Difference]: Finished difference. Result has 27 places, 17 transitions, 48 flow [2020-10-16 05:00:49,340 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=109, PETRI_DIFFERENCE_MINUEND_FLOW=40, PETRI_DIFFERENCE_MINUEND_PLACES=24, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=48, PETRI_PLACES=27, PETRI_TRANSITIONS=17} [2020-10-16 05:00:49,341 INFO L342 CegarLoopForPetriNet]: 27 programPoint places, 0 predicate places. [2020-10-16 05:00:49,341 INFO L481 AbstractCegarLoop]: Abstraction has has 27 places, 17 transitions, 48 flow [2020-10-16 05:00:49,341 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 05:00:49,341 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 05:00:49,341 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 05:00:49,342 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-16 05:00:49,342 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 05:00:49,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 05:00:49,342 INFO L82 PathProgramCache]: Analyzing trace with hash 1068325757, now seen corresponding path program 1 times [2020-10-16 05:00:49,343 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 05:00:49,343 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1259541172] [2020-10-16 05:00:49,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 05:00:49,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 05:00:49,419 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 05:00:49,419 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1259541172] [2020-10-16 05:00:49,419 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 05:00:49,420 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 05:00:49,420 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [273306153] [2020-10-16 05:00:49,421 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 05:00:49,421 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 05:00:49,422 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 05:00:49,422 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-16 05:00:49,424 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 84 out of 109 [2020-10-16 05:00:49,424 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 27 places, 17 transitions, 48 flow. Second operand 4 states. [2020-10-16 05:00:49,424 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 05:00:49,425 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 84 of 109 [2020-10-16 05:00:49,425 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 05:00:49,472 INFO L129 PetriNetUnfolder]: 11/56 cut-off events. [2020-10-16 05:00:49,472 INFO L130 PetriNetUnfolder]: For 12/19 co-relation queries the response was YES. [2020-10-16 05:00:49,473 INFO L80 FinitePrefix]: Finished finitePrefix Result has 114 conditions, 56 events. 11/56 cut-off events. For 12/19 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 203 event pairs, 1 based on Foata normal form. 6/60 useless extension candidates. Maximal degree in co-relation 104. Up to 15 conditions per place. [2020-10-16 05:00:49,474 INFO L132 encePairwiseOnDemand]: 104/109 looper letters, 8 selfloop transitions, 4 changer transitions 1/24 dead transitions. [2020-10-16 05:00:49,474 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 30 places, 24 transitions, 91 flow [2020-10-16 05:00:49,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-16 05:00:49,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-10-16 05:00:49,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 351 transitions. [2020-10-16 05:00:49,478 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.805045871559633 [2020-10-16 05:00:49,478 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 351 transitions. [2020-10-16 05:00:49,479 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 351 transitions. [2020-10-16 05:00:49,479 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 05:00:49,479 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 351 transitions. [2020-10-16 05:00:49,481 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 5 states. [2020-10-16 05:00:49,483 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 5 states. [2020-10-16 05:00:49,483 INFO L81 ComplementDD]: Finished complementDD. Result 5 states. [2020-10-16 05:00:49,483 INFO L185 Difference]: Start difference. First operand has 27 places, 17 transitions, 48 flow. Second operand 4 states and 351 transitions. [2020-10-16 05:00:49,483 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 30 places, 24 transitions, 91 flow [2020-10-16 05:00:49,484 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 24 transitions, 85 flow, removed 0 selfloop flow, removed 2 redundant places. [2020-10-16 05:00:49,485 INFO L241 Difference]: Finished difference. Result has 30 places, 19 transitions, 70 flow [2020-10-16 05:00:49,485 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=109, PETRI_DIFFERENCE_MINUEND_FLOW=44, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=70, PETRI_PLACES=30, PETRI_TRANSITIONS=19} [2020-10-16 05:00:49,486 INFO L342 CegarLoopForPetriNet]: 27 programPoint places, 3 predicate places. [2020-10-16 05:00:49,486 INFO L481 AbstractCegarLoop]: Abstraction has has 30 places, 19 transitions, 70 flow [2020-10-16 05:00:49,487 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 05:00:49,487 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 05:00:49,487 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 05:00:49,487 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-16 05:00:49,487 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 05:00:49,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 05:00:49,488 INFO L82 PathProgramCache]: Analyzing trace with hash 1965831898, now seen corresponding path program 1 times [2020-10-16 05:00:49,488 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 05:00:49,489 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2061298237] [2020-10-16 05:00:49,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 05:00:49,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 05:00:49,543 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 05:00:49,543 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2061298237] [2020-10-16 05:00:49,544 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 05:00:49,544 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 05:00:49,544 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [721303197] [2020-10-16 05:00:49,544 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 05:00:49,545 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 05:00:49,545 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 05:00:49,545 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-16 05:00:49,547 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 84 out of 109 [2020-10-16 05:00:49,547 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 19 transitions, 70 flow. Second operand 4 states. [2020-10-16 05:00:49,547 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 05:00:49,548 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 84 of 109 [2020-10-16 05:00:49,548 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 05:00:49,616 INFO L129 PetriNetUnfolder]: 2/43 cut-off events. [2020-10-16 05:00:49,616 INFO L130 PetriNetUnfolder]: For 29/33 co-relation queries the response was YES. [2020-10-16 05:00:49,616 INFO L80 FinitePrefix]: Finished finitePrefix Result has 107 conditions, 43 events. 2/43 cut-off events. For 29/33 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 142 event pairs, 0 based on Foata normal form. 7/50 useless extension candidates. Maximal degree in co-relation 95. Up to 11 conditions per place. [2020-10-16 05:00:49,617 INFO L132 encePairwiseOnDemand]: 105/109 looper letters, 6 selfloop transitions, 3 changer transitions 3/23 dead transitions. [2020-10-16 05:00:49,617 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 23 transitions, 108 flow [2020-10-16 05:00:49,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-16 05:00:49,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-10-16 05:00:49,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 434 transitions. [2020-10-16 05:00:49,620 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.7963302752293578 [2020-10-16 05:00:49,620 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 434 transitions. [2020-10-16 05:00:49,620 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 434 transitions. [2020-10-16 05:00:49,621 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 05:00:49,621 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 434 transitions. [2020-10-16 05:00:49,625 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 6 states. [2020-10-16 05:00:49,626 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 6 states. [2020-10-16 05:00:49,627 INFO L81 ComplementDD]: Finished complementDD. Result 6 states. [2020-10-16 05:00:49,627 INFO L185 Difference]: Start difference. First operand has 30 places, 19 transitions, 70 flow. Second operand 5 states and 434 transitions. [2020-10-16 05:00:49,627 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 23 transitions, 108 flow [2020-10-16 05:00:49,628 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 23 transitions, 96 flow, removed 1 selfloop flow, removed 3 redundant places. [2020-10-16 05:00:49,629 INFO L241 Difference]: Finished difference. Result has 34 places, 19 transitions, 78 flow [2020-10-16 05:00:49,629 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=109, PETRI_DIFFERENCE_MINUEND_FLOW=61, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=78, PETRI_PLACES=34, PETRI_TRANSITIONS=19} [2020-10-16 05:00:49,630 INFO L342 CegarLoopForPetriNet]: 27 programPoint places, 7 predicate places. [2020-10-16 05:00:49,630 INFO L481 AbstractCegarLoop]: Abstraction has has 34 places, 19 transitions, 78 flow [2020-10-16 05:00:49,630 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 05:00:49,630 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 05:00:49,630 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 05:00:49,630 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-16 05:00:49,631 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 05:00:49,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 05:00:49,631 INFO L82 PathProgramCache]: Analyzing trace with hash 154652174, now seen corresponding path program 1 times [2020-10-16 05:00:49,631 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 05:00:49,632 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1055565170] [2020-10-16 05:00:49,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 05:00:49,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 05:00:49,679 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 05:00:49,679 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1055565170] [2020-10-16 05:00:49,679 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 05:00:49,679 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 05:00:49,680 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [579071813] [2020-10-16 05:00:49,680 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 05:00:49,680 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 05:00:49,681 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 05:00:49,681 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-16 05:00:49,682 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 84 out of 109 [2020-10-16 05:00:49,683 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 19 transitions, 78 flow. Second operand 4 states. [2020-10-16 05:00:49,683 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 05:00:49,683 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 84 of 109 [2020-10-16 05:00:49,683 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 05:00:49,724 INFO L129 PetriNetUnfolder]: 0/34 cut-off events. [2020-10-16 05:00:49,724 INFO L130 PetriNetUnfolder]: For 37/37 co-relation queries the response was YES. [2020-10-16 05:00:49,725 INFO L80 FinitePrefix]: Finished finitePrefix Result has 91 conditions, 34 events. 0/34 cut-off events. For 37/37 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 94 event pairs, 0 based on Foata normal form. 2/36 useless extension candidates. Maximal degree in co-relation 0. Up to 9 conditions per place. [2020-10-16 05:00:49,725 INFO L132 encePairwiseOnDemand]: 104/109 looper letters, 3 selfloop transitions, 3 changer transitions 5/22 dead transitions. [2020-10-16 05:00:49,725 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 22 transitions, 114 flow [2020-10-16 05:00:49,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-16 05:00:49,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-10-16 05:00:49,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 348 transitions. [2020-10-16 05:00:49,729 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.7981651376146789 [2020-10-16 05:00:49,729 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 348 transitions. [2020-10-16 05:00:49,730 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 348 transitions. [2020-10-16 05:00:49,730 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 05:00:49,730 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 348 transitions. [2020-10-16 05:00:49,731 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 5 states. [2020-10-16 05:00:49,735 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 5 states. [2020-10-16 05:00:49,736 INFO L81 ComplementDD]: Finished complementDD. Result 5 states. [2020-10-16 05:00:49,736 INFO L185 Difference]: Start difference. First operand has 34 places, 19 transitions, 78 flow. Second operand 4 states and 348 transitions. [2020-10-16 05:00:49,736 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 22 transitions, 114 flow [2020-10-16 05:00:49,737 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 22 transitions, 102 flow, removed 4 selfloop flow, removed 3 redundant places. [2020-10-16 05:00:49,738 INFO L241 Difference]: Finished difference. Result has 33 places, 17 transitions, 68 flow [2020-10-16 05:00:49,739 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=109, PETRI_DIFFERENCE_MINUEND_FLOW=69, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=68, PETRI_PLACES=33, PETRI_TRANSITIONS=17} [2020-10-16 05:00:49,739 INFO L342 CegarLoopForPetriNet]: 27 programPoint places, 6 predicate places. [2020-10-16 05:00:49,739 INFO L481 AbstractCegarLoop]: Abstraction has has 33 places, 17 transitions, 68 flow [2020-10-16 05:00:49,740 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 05:00:49,740 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 05:00:49,740 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 05:00:49,740 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-16 05:00:49,740 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 05:00:49,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 05:00:49,741 INFO L82 PathProgramCache]: Analyzing trace with hash -2068679953, now seen corresponding path program 1 times [2020-10-16 05:00:49,741 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 05:00:49,741 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1226211822] [2020-10-16 05:00:49,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 05:00:49,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 05:00:49,835 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 05:00:49,836 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1226211822] [2020-10-16 05:00:49,836 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 05:00:49,836 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 05:00:49,836 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1447970610] [2020-10-16 05:00:49,837 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 05:00:49,837 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 05:00:49,837 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 05:00:49,837 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-16 05:00:49,839 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 109 [2020-10-16 05:00:49,839 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 17 transitions, 68 flow. Second operand 4 states. [2020-10-16 05:00:49,839 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 05:00:49,840 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 109 [2020-10-16 05:00:49,840 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 05:00:49,887 INFO L129 PetriNetUnfolder]: 28/69 cut-off events. [2020-10-16 05:00:49,887 INFO L130 PetriNetUnfolder]: For 154/165 co-relation queries the response was YES. [2020-10-16 05:00:49,888 INFO L80 FinitePrefix]: Finished finitePrefix Result has 178 conditions, 69 events. 28/69 cut-off events. For 154/165 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 210 event pairs, 12 based on Foata normal form. 9/72 useless extension candidates. Maximal degree in co-relation 165. Up to 45 conditions per place. [2020-10-16 05:00:49,889 INFO L132 encePairwiseOnDemand]: 103/109 looper letters, 5 selfloop transitions, 4 changer transitions 7/27 dead transitions. [2020-10-16 05:00:49,889 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 27 transitions, 120 flow [2020-10-16 05:00:49,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-16 05:00:49,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-10-16 05:00:49,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 418 transitions. [2020-10-16 05:00:49,891 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.7669724770642202 [2020-10-16 05:00:49,892 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 418 transitions. [2020-10-16 05:00:49,892 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 418 transitions. [2020-10-16 05:00:49,892 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 05:00:49,892 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 418 transitions. [2020-10-16 05:00:49,893 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 6 states. [2020-10-16 05:00:49,895 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 6 states. [2020-10-16 05:00:49,895 INFO L81 ComplementDD]: Finished complementDD. Result 6 states. [2020-10-16 05:00:49,895 INFO L185 Difference]: Start difference. First operand has 33 places, 17 transitions, 68 flow. Second operand 5 states and 418 transitions. [2020-10-16 05:00:49,895 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 27 transitions, 120 flow [2020-10-16 05:00:49,896 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 27 transitions, 102 flow, removed 3 selfloop flow, removed 6 redundant places. [2020-10-16 05:00:49,897 INFO L241 Difference]: Finished difference. Result has 34 places, 20 transitions, 86 flow [2020-10-16 05:00:49,898 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=109, PETRI_DIFFERENCE_MINUEND_FLOW=50, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=86, PETRI_PLACES=34, PETRI_TRANSITIONS=20} [2020-10-16 05:00:49,898 INFO L342 CegarLoopForPetriNet]: 27 programPoint places, 7 predicate places. [2020-10-16 05:00:49,898 INFO L481 AbstractCegarLoop]: Abstraction has has 34 places, 20 transitions, 86 flow [2020-10-16 05:00:49,898 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 05:00:49,898 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 05:00:49,898 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 05:00:49,899 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-16 05:00:49,899 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 05:00:49,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 05:00:49,899 INFO L82 PathProgramCache]: Analyzing trace with hash 1341191340, now seen corresponding path program 1 times [2020-10-16 05:00:49,900 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 05:00:49,900 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [216603014] [2020-10-16 05:00:49,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 05:00:49,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 05:00:49,976 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 05:00:49,976 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [216603014] [2020-10-16 05:00:49,977 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 05:00:49,977 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 05:00:49,977 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1094991923] [2020-10-16 05:00:49,977 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-16 05:00:49,978 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 05:00:49,978 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-16 05:00:49,978 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-16 05:00:49,980 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 109 [2020-10-16 05:00:49,980 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 20 transitions, 86 flow. Second operand 5 states. [2020-10-16 05:00:49,980 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 05:00:49,980 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 109 [2020-10-16 05:00:49,981 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 05:00:50,030 INFO L129 PetriNetUnfolder]: 16/50 cut-off events. [2020-10-16 05:00:50,030 INFO L130 PetriNetUnfolder]: For 83/128 co-relation queries the response was YES. [2020-10-16 05:00:50,031 INFO L80 FinitePrefix]: Finished finitePrefix Result has 181 conditions, 50 events. 16/50 cut-off events. For 83/128 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 115 event pairs, 2 based on Foata normal form. 16/64 useless extension candidates. Maximal degree in co-relation 168. Up to 35 conditions per place. [2020-10-16 05:00:50,032 INFO L132 encePairwiseOnDemand]: 103/109 looper letters, 5 selfloop transitions, 7 changer transitions 7/30 dead transitions. [2020-10-16 05:00:50,032 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 30 transitions, 182 flow [2020-10-16 05:00:50,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-16 05:00:50,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2020-10-16 05:00:50,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 501 transitions. [2020-10-16 05:00:50,034 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.7660550458715596 [2020-10-16 05:00:50,034 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 501 transitions. [2020-10-16 05:00:50,035 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 501 transitions. [2020-10-16 05:00:50,035 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 05:00:50,035 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 501 transitions. [2020-10-16 05:00:50,036 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 7 states. [2020-10-16 05:00:50,038 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 7 states. [2020-10-16 05:00:50,038 INFO L81 ComplementDD]: Finished complementDD. Result 7 states. [2020-10-16 05:00:50,038 INFO L185 Difference]: Start difference. First operand has 34 places, 20 transitions, 86 flow. Second operand 6 states and 501 transitions. [2020-10-16 05:00:50,038 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 30 transitions, 182 flow [2020-10-16 05:00:50,040 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 30 transitions, 176 flow, removed 1 selfloop flow, removed 2 redundant places. [2020-10-16 05:00:50,041 INFO L241 Difference]: Finished difference. Result has 38 places, 23 transitions, 136 flow [2020-10-16 05:00:50,041 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=109, PETRI_DIFFERENCE_MINUEND_FLOW=80, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=136, PETRI_PLACES=38, PETRI_TRANSITIONS=23} [2020-10-16 05:00:50,042 INFO L342 CegarLoopForPetriNet]: 27 programPoint places, 11 predicate places. [2020-10-16 05:00:50,042 INFO L481 AbstractCegarLoop]: Abstraction has has 38 places, 23 transitions, 136 flow [2020-10-16 05:00:50,042 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-16 05:00:50,042 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 05:00:50,042 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 05:00:50,043 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-16 05:00:50,043 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 05:00:50,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 05:00:50,043 INFO L82 PathProgramCache]: Analyzing trace with hash 568448593, now seen corresponding path program 1 times [2020-10-16 05:00:50,044 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 05:00:50,044 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [302173284] [2020-10-16 05:00:50,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 05:00:50,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 05:00:50,105 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 05:00:50,105 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [302173284] [2020-10-16 05:00:50,105 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 05:00:50,106 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-16 05:00:50,106 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1178776237] [2020-10-16 05:00:50,106 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-16 05:00:50,106 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 05:00:50,107 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-16 05:00:50,107 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-16 05:00:50,109 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 109 [2020-10-16 05:00:50,109 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 23 transitions, 136 flow. Second operand 6 states. [2020-10-16 05:00:50,109 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 05:00:50,109 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 109 [2020-10-16 05:00:50,110 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 05:00:50,169 INFO L129 PetriNetUnfolder]: 7/32 cut-off events. [2020-10-16 05:00:50,169 INFO L130 PetriNetUnfolder]: For 98/136 co-relation queries the response was YES. [2020-10-16 05:00:50,170 INFO L80 FinitePrefix]: Finished finitePrefix Result has 141 conditions, 32 events. 7/32 cut-off events. For 98/136 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 45 event pairs, 0 based on Foata normal form. 14/45 useless extension candidates. Maximal degree in co-relation 125. Up to 20 conditions per place. [2020-10-16 05:00:50,170 INFO L132 encePairwiseOnDemand]: 103/109 looper letters, 2 selfloop transitions, 10 changer transitions 4/27 dead transitions. [2020-10-16 05:00:50,170 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 27 transitions, 204 flow [2020-10-16 05:00:50,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-16 05:00:50,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2020-10-16 05:00:50,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 578 transitions. [2020-10-16 05:00:50,173 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.7575360419397117 [2020-10-16 05:00:50,174 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 578 transitions. [2020-10-16 05:00:50,174 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 578 transitions. [2020-10-16 05:00:50,174 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 05:00:50,174 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 578 transitions. [2020-10-16 05:00:50,176 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 8 states. [2020-10-16 05:00:50,177 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 8 states. [2020-10-16 05:00:50,178 INFO L81 ComplementDD]: Finished complementDD. Result 8 states. [2020-10-16 05:00:50,178 INFO L185 Difference]: Start difference. First operand has 38 places, 23 transitions, 136 flow. Second operand 7 states and 578 transitions. [2020-10-16 05:00:50,178 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 27 transitions, 204 flow [2020-10-16 05:00:50,180 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 27 transitions, 168 flow, removed 14 selfloop flow, removed 4 redundant places. [2020-10-16 05:00:50,181 INFO L241 Difference]: Finished difference. Result has 41 places, 23 transitions, 138 flow [2020-10-16 05:00:50,181 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=109, PETRI_DIFFERENCE_MINUEND_FLOW=106, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=138, PETRI_PLACES=41, PETRI_TRANSITIONS=23} [2020-10-16 05:00:50,181 INFO L342 CegarLoopForPetriNet]: 27 programPoint places, 14 predicate places. [2020-10-16 05:00:50,181 INFO L481 AbstractCegarLoop]: Abstraction has has 41 places, 23 transitions, 138 flow [2020-10-16 05:00:50,181 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-16 05:00:50,182 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 05:00:50,182 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 05:00:50,182 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-16 05:00:50,182 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 05:00:50,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 05:00:50,183 INFO L82 PathProgramCache]: Analyzing trace with hash 1010226051, now seen corresponding path program 1 times [2020-10-16 05:00:50,183 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 05:00:50,183 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [628197370] [2020-10-16 05:00:50,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 05:00:50,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 05:00:50,239 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 05:00:50,240 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [628197370] [2020-10-16 05:00:50,240 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 05:00:50,240 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 05:00:50,240 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [969831282] [2020-10-16 05:00:50,241 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 05:00:50,241 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 05:00:50,241 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 05:00:50,242 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 05:00:50,243 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 91 out of 109 [2020-10-16 05:00:50,244 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 23 transitions, 138 flow. Second operand 3 states. [2020-10-16 05:00:50,244 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 05:00:50,244 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 91 of 109 [2020-10-16 05:00:50,244 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 05:00:50,262 INFO L129 PetriNetUnfolder]: 5/25 cut-off events. [2020-10-16 05:00:50,262 INFO L130 PetriNetUnfolder]: For 47/52 co-relation queries the response was YES. [2020-10-16 05:00:50,263 INFO L80 FinitePrefix]: Finished finitePrefix Result has 90 conditions, 25 events. 5/25 cut-off events. For 47/52 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 22 event pairs, 0 based on Foata normal form. 1/25 useless extension candidates. Maximal degree in co-relation 79. Up to 11 conditions per place. [2020-10-16 05:00:50,263 INFO L132 encePairwiseOnDemand]: 107/109 looper letters, 0 selfloop transitions, 0 changer transitions 22/22 dead transitions. [2020-10-16 05:00:50,263 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 22 transitions, 134 flow [2020-10-16 05:00:50,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 05:00:50,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-10-16 05:00:50,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 277 transitions. [2020-10-16 05:00:50,267 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.8470948012232415 [2020-10-16 05:00:50,268 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 277 transitions. [2020-10-16 05:00:50,268 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 277 transitions. [2020-10-16 05:00:50,268 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 05:00:50,268 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 277 transitions. [2020-10-16 05:00:50,269 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 4 states. [2020-10-16 05:00:50,270 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 4 states. [2020-10-16 05:00:50,270 INFO L81 ComplementDD]: Finished complementDD. Result 4 states. [2020-10-16 05:00:50,270 INFO L185 Difference]: Start difference. First operand has 41 places, 23 transitions, 138 flow. Second operand 3 states and 277 transitions. [2020-10-16 05:00:50,270 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 22 transitions, 134 flow [2020-10-16 05:00:50,273 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 22 transitions, 100 flow, removed 9 selfloop flow, removed 5 redundant places. [2020-10-16 05:00:50,274 INFO L241 Difference]: Finished difference. Result has 35 places, 0 transitions, 0 flow [2020-10-16 05:00:50,274 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=109, PETRI_DIFFERENCE_MINUEND_FLOW=94, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=35, PETRI_TRANSITIONS=0} [2020-10-16 05:00:50,274 INFO L342 CegarLoopForPetriNet]: 27 programPoint places, 8 predicate places. [2020-10-16 05:00:50,274 INFO L481 AbstractCegarLoop]: Abstraction has has 35 places, 0 transitions, 0 flow [2020-10-16 05:00:50,274 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 05:00:50,275 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-16 05:00:50,279 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 05:00:50 BasicIcfg [2020-10-16 05:00:50,280 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-16 05:00:50,284 INFO L168 Benchmark]: Toolchain (without parser) took 4061.25 ms. Allocated memory was 251.7 MB in the beginning and 371.7 MB in the end (delta: 120.1 MB). Free memory was 207.4 MB in the beginning and 253.4 MB in the end (delta: -46.0 MB). Peak memory consumption was 74.1 MB. Max. memory is 14.2 GB. [2020-10-16 05:00:50,285 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 251.7 MB. Free memory is still 228.0 MB. There was no memory consumed. Max. memory is 14.2 GB. [2020-10-16 05:00:50,291 INFO L168 Benchmark]: CACSL2BoogieTranslator took 709.47 ms. Allocated memory was 251.7 MB in the beginning and 316.1 MB in the end (delta: 64.5 MB). Free memory was 207.4 MB in the beginning and 269.5 MB in the end (delta: -62.1 MB). Peak memory consumption was 30.1 MB. Max. memory is 14.2 GB. [2020-10-16 05:00:50,292 INFO L168 Benchmark]: Boogie Procedure Inliner took 46.94 ms. Allocated memory is still 316.1 MB. Free memory was 269.5 MB in the beginning and 267.0 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. [2020-10-16 05:00:50,293 INFO L168 Benchmark]: Boogie Preprocessor took 26.84 ms. Allocated memory is still 316.1 MB. Free memory was 267.0 MB in the beginning and 264.4 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. [2020-10-16 05:00:50,295 INFO L168 Benchmark]: RCFGBuilder took 412.64 ms. Allocated memory is still 316.1 MB. Free memory was 264.4 MB in the beginning and 242.6 MB in the end (delta: 21.8 MB). Peak memory consumption was 21.8 MB. Max. memory is 14.2 GB. [2020-10-16 05:00:50,296 INFO L168 Benchmark]: TraceAbstraction took 2860.38 ms. Allocated memory was 316.1 MB in the beginning and 371.7 MB in the end (delta: 55.6 MB). Free memory was 242.6 MB in the beginning and 253.4 MB in the end (delta: -10.8 MB). Peak memory consumption was 44.8 MB. Max. memory is 14.2 GB. [2020-10-16 05:00:50,311 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 251.7 MB. Free memory is still 228.0 MB. There was no memory consumed. Max. memory is 14.2 GB. * CACSL2BoogieTranslator took 709.47 ms. Allocated memory was 251.7 MB in the beginning and 316.1 MB in the end (delta: 64.5 MB). Free memory was 207.4 MB in the beginning and 269.5 MB in the end (delta: -62.1 MB). Peak memory consumption was 30.1 MB. Max. memory is 14.2 GB. * Boogie Procedure Inliner took 46.94 ms. Allocated memory is still 316.1 MB. Free memory was 269.5 MB in the beginning and 267.0 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. * Boogie Preprocessor took 26.84 ms. Allocated memory is still 316.1 MB. Free memory was 267.0 MB in the beginning and 264.4 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. * RCFGBuilder took 412.64 ms. Allocated memory is still 316.1 MB. Free memory was 264.4 MB in the beginning and 242.6 MB in the end (delta: 21.8 MB). Peak memory consumption was 21.8 MB. Max. memory is 14.2 GB. * TraceAbstraction took 2860.38 ms. Allocated memory was 316.1 MB in the beginning and 371.7 MB in the end (delta: 55.6 MB). Free memory was 242.6 MB in the beginning and 253.4 MB in the end (delta: -10.8 MB). Peak memory consumption was 44.8 MB. Max. memory is 14.2 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 550 VarBasedMoverChecksPositive, 46 VarBasedMoverChecksNegative, 10 SemBasedMoverChecksPositive, 36 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.3s, 80 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 1.3s, 64 PlacesBefore, 27 PlacesAfterwards, 55 TransitionsBefore, 17 TransitionsAfterwards, 864 CoEnabledTransitionPairs, 5 FixpointIterations, 13 TrivialSequentialCompositions, 24 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 2 ConcurrentYvCompositions, 1 ChoiceCompositions, 40 TotalNumberOfCompositions, 1587 MoverChecksTotal - PositiveResult [Line: 7]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 68 locations, 1 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 2.7s, OverallIterations: 8, TraceHistogramMax: 1, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.4s, HoareTripleCheckerStatistics: 32 SDtfs, 21 SDslu, 20 SDs, 0 SdLazy, 119 SolverSat, 22 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 25 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=138occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 98 NumberOfCodeBlocks, 98 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 90 ConstructedInterpolants, 0 QuantifiedInterpolants, 3030 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...