/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-RepeatedSemanticLbeWithPredicates.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe000_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-d5b4239aa45c8d22a30959944f2ef622f7386a6d-d5b4239 [2021-03-26 00:32:48,917 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-26 00:32:48,919 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-26 00:32:48,955 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-03-26 00:32:48,956 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-03-26 00:32:48,959 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-03-26 00:32:48,961 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-03-26 00:32:48,966 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-03-26 00:32:48,968 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-03-26 00:32:48,972 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-03-26 00:32:48,973 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-03-26 00:32:48,974 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-03-26 00:32:48,975 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-26 00:32:48,977 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-26 00:32:48,978 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-26 00:32:48,979 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-26 00:32:48,981 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-26 00:32:48,982 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-26 00:32:48,984 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-26 00:32:48,991 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-26 00:32:48,993 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-26 00:32:48,994 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-26 00:32:48,995 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-26 00:32:48,997 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-26 00:32:49,002 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-03-26 00:32:49,024 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-26 00:32:49,025 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-26 00:32:49,025 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-26 00:32:49,026 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-RepeatedSemanticLbeWithPredicates.epf [2021-03-26 00:32:49,061 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-26 00:32:49,061 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-26 00:32:49,064 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-26 00:32:49,064 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-26 00:32:49,064 INFO L138 SettingsManager]: * Use SBE=true [2021-03-26 00:32:49,065 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-26 00:32:49,065 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-26 00:32:49,065 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-26 00:32:49,065 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-26 00:32:49,066 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-26 00:32:49,066 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-26 00:32:49,066 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-26 00:32:49,067 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-26 00:32:49,067 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-26 00:32:49,067 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-26 00:32:49,067 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-26 00:32:49,067 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-26 00:32:49,068 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-26 00:32:49,068 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-26 00:32:49,068 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-26 00:32:49,068 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-26 00:32:49,069 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-26 00:32:49,069 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-26 00:32:49,069 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-26 00:32:49,069 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-26 00:32:49,069 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-26 00:32:49,069 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-26 00:32:49,070 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=SEMANTIC_BASED_MOVER_CHECK_WITH_PREDICATES [2021-03-26 00:32:49,070 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-03-26 00:32:49,070 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-03-26 00:32:49,070 INFO L138 SettingsManager]: * Apply repeated Lipton Reduction=true WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-26 00:32:49,394 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-26 00:32:49,420 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-26 00:32:49,422 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-26 00:32:49,423 INFO L271 PluginConnector]: Initializing CDTParser... [2021-03-26 00:32:49,424 INFO L275 PluginConnector]: CDTParser initialized [2021-03-26 00:32:49,425 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe000_tso.oepc.i [2021-03-26 00:32:49,490 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2d0da3e3d/f1bc07328b3c44dfac82762450a9873d/FLAGf3aafc858 [2021-03-26 00:32:50,113 INFO L306 CDTParser]: Found 1 translation units. [2021-03-26 00:32:50,114 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe000_tso.oepc.i [2021-03-26 00:32:50,136 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2d0da3e3d/f1bc07328b3c44dfac82762450a9873d/FLAGf3aafc858 [2021-03-26 00:32:50,458 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2d0da3e3d/f1bc07328b3c44dfac82762450a9873d [2021-03-26 00:32:50,460 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-26 00:32:50,461 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-03-26 00:32:50,463 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-03-26 00:32:50,463 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-03-26 00:32:50,469 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-03-26 00:32:50,469 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.03 12:32:50" (1/1) ... [2021-03-26 00:32:50,471 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@681584f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:32:50, skipping insertion in model container [2021-03-26 00:32:50,471 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.03 12:32:50" (1/1) ... [2021-03-26 00:32:50,477 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-03-26 00:32:50,520 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-03-26 00:32:50,686 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe000_tso.oepc.i[950,963] [2021-03-26 00:32:50,860 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-26 00:32:50,867 INFO L203 MainTranslator]: Completed pre-run [2021-03-26 00:32:50,877 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe000_tso.oepc.i[950,963] [2021-03-26 00:32:50,915 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-26 00:32:50,990 INFO L208 MainTranslator]: Completed translation [2021-03-26 00:32:50,990 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:32:50 WrapperNode [2021-03-26 00:32:50,992 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-03-26 00:32:50,993 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-26 00:32:50,993 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-26 00:32:50,993 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-26 00:32:50,999 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:32:50" (1/1) ... [2021-03-26 00:32:51,028 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:32:50" (1/1) ... [2021-03-26 00:32:51,047 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-26 00:32:51,048 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-26 00:32:51,049 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-26 00:32:51,049 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-26 00:32:51,055 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:32:50" (1/1) ... [2021-03-26 00:32:51,056 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:32:50" (1/1) ... [2021-03-26 00:32:51,065 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:32:50" (1/1) ... [2021-03-26 00:32:51,066 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:32:50" (1/1) ... [2021-03-26 00:32:51,075 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:32:50" (1/1) ... [2021-03-26 00:32:51,077 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:32:50" (1/1) ... [2021-03-26 00:32:51,079 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:32:50" (1/1) ... [2021-03-26 00:32:51,081 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-26 00:32:51,082 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-26 00:32:51,082 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-26 00:32:51,082 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-26 00:32:51,083 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:32:50" (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 [2021-03-26 00:32:51,161 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-03-26 00:32:51,161 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-03-26 00:32:51,162 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-03-26 00:32:51,162 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-03-26 00:32:51,162 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-03-26 00:32:51,163 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-03-26 00:32:51,163 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-03-26 00:32:51,163 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-03-26 00:32:51,163 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-03-26 00:32:51,163 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-03-26 00:32:51,164 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-03-26 00:32:51,164 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-03-26 00:32:51,164 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-26 00:32:51,164 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-26 00:32:51,165 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-03-26 00:32:51,478 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-26 00:32:51,479 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-03-26 00:32:51,480 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.03 12:32:51 BoogieIcfgContainer [2021-03-26 00:32:51,480 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-26 00:32:51,482 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-26 00:32:51,482 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-26 00:32:51,484 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-26 00:32:51,484 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.03 12:32:50" (1/3) ... [2021-03-26 00:32:51,485 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b9a6b6f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.03 12:32:51, skipping insertion in model container [2021-03-26 00:32:51,485 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:32:50" (2/3) ... [2021-03-26 00:32:51,485 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b9a6b6f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.03 12:32:51, skipping insertion in model container [2021-03-26 00:32:51,485 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.03 12:32:51" (3/3) ... [2021-03-26 00:32:51,487 INFO L111 eAbstractionObserver]: Analyzing ICFG safe000_tso.oepc.i [2021-03-26 00:32:51,491 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-26 00:32:51,495 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-03-26 00:32:51,495 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-26 00:32:51,517 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:32:51,517 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:32:51,517 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:32:51,517 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:32:51,517 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:32:51,518 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:32:51,518 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:32:51,518 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:32:51,518 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:32:51,518 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:32:51,518 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:32:51,519 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:32:51,519 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:32:51,519 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:32:51,519 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:32:51,519 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:32:51,520 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:32:51,520 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:32:51,520 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:32:51,520 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:32:51,520 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:32:51,520 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:32:51,521 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:32:51,521 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:32:51,521 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:32:51,521 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:32:51,521 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:32:51,521 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:32:51,522 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:32:51,522 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:32:51,522 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:32:51,522 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:32:51,522 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:32:51,522 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:32:51,523 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:32:51,523 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:32:51,525 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:32:51,525 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:32:51,525 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:32:51,525 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:32:51,529 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:32:51,529 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:32:51,529 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:32:51,529 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:32:51,531 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:32:51,531 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:32:51,531 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:32:51,531 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:32:51,533 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-26 00:32:51,548 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-03-26 00:32:51,565 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-26 00:32:51,565 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-26 00:32:51,565 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-26 00:32:51,565 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-26 00:32:51,565 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-26 00:32:51,565 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-26 00:32:51,565 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-26 00:32:51,565 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-26 00:32:51,575 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 83 places, 75 transitions, 165 flow [2021-03-26 00:32:51,625 INFO L129 PetriNetUnfolder]: 2/72 cut-off events. [2021-03-26 00:32:51,625 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 00:32:51,632 INFO L84 FinitePrefix]: Finished finitePrefix Result has 82 conditions, 72 events. 2/72 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 49 event pairs, 0 based on Foata normal form. 0/69 useless extension candidates. Maximal degree in co-relation 56. Up to 2 conditions per place. [2021-03-26 00:32:51,632 INFO L82 GeneralOperation]: Start removeDead. Operand has 83 places, 75 transitions, 165 flow [2021-03-26 00:32:51,644 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 69 places, 60 transitions, 129 flow [2021-03-26 00:32:51,647 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 00:32:51,658 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 69 places, 60 transitions, 129 flow [2021-03-26 00:32:51,662 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 69 places, 60 transitions, 129 flow [2021-03-26 00:32:51,664 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 69 places, 60 transitions, 129 flow [2021-03-26 00:32:51,699 INFO L129 PetriNetUnfolder]: 1/60 cut-off events. [2021-03-26 00:32:51,699 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 00:32:51,700 INFO L84 FinitePrefix]: Finished finitePrefix Result has 70 conditions, 60 events. 1/60 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. 0/59 useless extension candidates. Maximal degree in co-relation 44. Up to 2 conditions per place. [2021-03-26 00:32:51,702 INFO L142 LiptonReduction]: Number of co-enabled transitions 864 [2021-03-26 00:32:53,317 INFO L154 LiptonReduction]: Checked pairs total: 1328 [2021-03-26 00:32:53,318 INFO L156 LiptonReduction]: Total number of compositions: 41 [2021-03-26 00:32:53,323 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1679 [2021-03-26 00:32:53,336 INFO L129 PetriNetUnfolder]: 0/19 cut-off events. [2021-03-26 00:32:53,336 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 00:32:53,336 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 00:32:53,337 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 00:32:53,337 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 00:32:53,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 00:32:53,341 INFO L82 PathProgramCache]: Analyzing trace with hash -864788976, now seen corresponding path program 1 times [2021-03-26 00:32:53,347 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 00:32:53,348 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1414119345] [2021-03-26 00:32:53,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 00:32:53,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 00:32:53,543 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:32:53,544 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:32:53,558 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-03-26 00:32:53,559 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-26 00:32:53,573 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:32:53,575 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 00:32:53,584 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 00:32:53,584 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1414119345] [2021-03-26 00:32:53,585 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 00:32:53,585 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-26 00:32:53,585 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [9379942] [2021-03-26 00:32:53,593 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-26 00:32:53,594 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 00:32:53,606 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-26 00:32:53,609 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-03-26 00:32:53,612 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 116 [2021-03-26 00:32:53,617 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 21 transitions, 51 flow. Second operand has 5 states, 5 states have (on average 83.8) internal successors, (419), 5 states have internal predecessors, (419), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:32:53,623 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 00:32:53,624 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 116 [2021-03-26 00:32:53,625 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 00:32:53,706 INFO L129 PetriNetUnfolder]: 78/200 cut-off events. [2021-03-26 00:32:53,706 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 00:32:53,707 INFO L84 FinitePrefix]: Finished finitePrefix Result has 364 conditions, 200 events. 78/200 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 959 event pairs, 17 based on Foata normal form. 23/216 useless extension candidates. Maximal degree in co-relation 350. Up to 58 conditions per place. [2021-03-26 00:32:53,708 INFO L132 encePairwiseOnDemand]: 108/116 looper letters, 12 selfloop transitions, 6 changer transitions 15/45 dead transitions. [2021-03-26 00:32:53,708 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 45 transitions, 165 flow [2021-03-26 00:32:53,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-26 00:32:53,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-26 00:32:53,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 617 transitions. [2021-03-26 00:32:53,721 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7598522167487685 [2021-03-26 00:32:53,722 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 617 transitions. [2021-03-26 00:32:53,722 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 617 transitions. [2021-03-26 00:32:53,724 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 00:32:53,725 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 617 transitions. [2021-03-26 00:32:53,729 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 88.14285714285714) internal successors, (617), 7 states have internal predecessors, (617), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:32:53,734 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 116.0) internal successors, (928), 8 states have internal predecessors, (928), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:32:53,735 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 116.0) internal successors, (928), 8 states have internal predecessors, (928), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:32:53,736 INFO L185 Difference]: Start difference. First operand has 31 places, 21 transitions, 51 flow. Second operand 7 states and 617 transitions. [2021-03-26 00:32:53,737 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 45 transitions, 165 flow [2021-03-26 00:32:53,739 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 45 transitions, 162 flow, removed 0 selfloop flow, removed 3 redundant places. [2021-03-26 00:32:53,740 INFO L241 Difference]: Finished difference. Result has 40 places, 25 transitions, 106 flow [2021-03-26 00:32:53,742 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=116, PETRI_DIFFERENCE_MINUEND_FLOW=48, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=106, PETRI_PLACES=40, PETRI_TRANSITIONS=25} [2021-03-26 00:32:53,742 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 9 predicate places. [2021-03-26 00:32:53,743 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 00:32:53,743 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 40 places, 25 transitions, 106 flow [2021-03-26 00:32:53,743 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 40 places, 25 transitions, 106 flow [2021-03-26 00:32:53,743 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 37 places, 25 transitions, 106 flow [2021-03-26 00:32:53,755 INFO L129 PetriNetUnfolder]: 36/120 cut-off events. [2021-03-26 00:32:53,755 INFO L130 PetriNetUnfolder]: For 75/78 co-relation queries the response was YES. [2021-03-26 00:32:53,756 INFO L84 FinitePrefix]: Finished finitePrefix Result has 310 conditions, 120 events. 36/120 cut-off events. For 75/78 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 514 event pairs, 17 based on Foata normal form. 0/116 useless extension candidates. Maximal degree in co-relation 294. Up to 41 conditions per place. [2021-03-26 00:32:53,757 INFO L142 LiptonReduction]: Number of co-enabled transitions 158 [2021-03-26 00:32:54,190 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 76 [2021-03-26 00:32:54,392 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 76 [2021-03-26 00:32:54,464 INFO L154 LiptonReduction]: Checked pairs total: 102 [2021-03-26 00:32:54,464 INFO L156 LiptonReduction]: Total number of compositions: 3 [2021-03-26 00:32:54,464 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 721 [2021-03-26 00:32:54,466 INFO L480 AbstractCegarLoop]: Abstraction has has 34 places, 22 transitions, 100 flow [2021-03-26 00:32:54,466 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 83.8) internal successors, (419), 5 states have internal predecessors, (419), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:32:54,466 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 00:32:54,466 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 00:32:54,467 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-26 00:32:54,467 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 00:32:54,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 00:32:54,467 INFO L82 PathProgramCache]: Analyzing trace with hash -1038676965, now seen corresponding path program 1 times [2021-03-26 00:32:54,467 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 00:32:54,468 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [488348280] [2021-03-26 00:32:54,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 00:32:54,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 00:32:54,577 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:32:54,577 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 00:32:54,578 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:32:54,578 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:32:54,581 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-03-26 00:32:54,582 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-26 00:32:54,589 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:32:54,590 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 00:32:54,595 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 00:32:54,595 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [488348280] [2021-03-26 00:32:54,595 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 00:32:54,595 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-26 00:32:54,595 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [600261850] [2021-03-26 00:32:54,599 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-26 00:32:54,600 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 00:32:54,600 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-26 00:32:54,601 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-03-26 00:32:54,604 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 84 out of 119 [2021-03-26 00:32:54,608 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 22 transitions, 100 flow. Second operand has 5 states, 5 states have (on average 85.0) internal successors, (425), 5 states have internal predecessors, (425), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:32:54,608 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 00:32:54,608 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 84 of 119 [2021-03-26 00:32:54,608 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 00:32:54,678 INFO L129 PetriNetUnfolder]: 33/119 cut-off events. [2021-03-26 00:32:54,678 INFO L130 PetriNetUnfolder]: For 195/244 co-relation queries the response was YES. [2021-03-26 00:32:54,681 INFO L84 FinitePrefix]: Finished finitePrefix Result has 389 conditions, 119 events. 33/119 cut-off events. For 195/244 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 521 event pairs, 3 based on Foata normal form. 14/129 useless extension candidates. Maximal degree in co-relation 374. Up to 41 conditions per place. [2021-03-26 00:32:54,682 INFO L132 encePairwiseOnDemand]: 112/119 looper letters, 12 selfloop transitions, 11 changer transitions 12/45 dead transitions. [2021-03-26 00:32:54,683 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 45 transitions, 310 flow [2021-03-26 00:32:54,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-26 00:32:54,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-26 00:32:54,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 617 transitions. [2021-03-26 00:32:54,686 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7406962785114045 [2021-03-26 00:32:54,686 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 617 transitions. [2021-03-26 00:32:54,686 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 617 transitions. [2021-03-26 00:32:54,687 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 00:32:54,687 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 617 transitions. [2021-03-26 00:32:54,692 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 88.14285714285714) internal successors, (617), 7 states have internal predecessors, (617), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:32:54,697 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 119.0) internal successors, (952), 8 states have internal predecessors, (952), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:32:54,697 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 119.0) internal successors, (952), 8 states have internal predecessors, (952), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:32:54,698 INFO L185 Difference]: Start difference. First operand has 34 places, 22 transitions, 100 flow. Second operand 7 states and 617 transitions. [2021-03-26 00:32:54,698 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 45 transitions, 310 flow [2021-03-26 00:32:54,701 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 45 transitions, 302 flow, removed 2 selfloop flow, removed 2 redundant places. [2021-03-26 00:32:54,703 INFO L241 Difference]: Finished difference. Result has 44 places, 29 transitions, 195 flow [2021-03-26 00:32:54,703 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=119, PETRI_DIFFERENCE_MINUEND_FLOW=96, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=195, PETRI_PLACES=44, PETRI_TRANSITIONS=29} [2021-03-26 00:32:54,704 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 13 predicate places. [2021-03-26 00:32:54,705 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 00:32:54,705 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 44 places, 29 transitions, 195 flow [2021-03-26 00:32:54,706 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 44 places, 29 transitions, 195 flow [2021-03-26 00:32:54,707 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 41 places, 29 transitions, 195 flow [2021-03-26 00:32:54,713 INFO L129 PetriNetUnfolder]: 19/80 cut-off events. [2021-03-26 00:32:54,713 INFO L130 PetriNetUnfolder]: For 181/199 co-relation queries the response was YES. [2021-03-26 00:32:54,714 INFO L84 FinitePrefix]: Finished finitePrefix Result has 285 conditions, 80 events. 19/80 cut-off events. For 181/199 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 311 event pairs, 5 based on Foata normal form. 5/82 useless extension candidates. Maximal degree in co-relation 266. Up to 25 conditions per place. [2021-03-26 00:32:54,716 INFO L142 LiptonReduction]: Number of co-enabled transitions 194 [2021-03-26 00:32:54,731 INFO L154 LiptonReduction]: Checked pairs total: 151 [2021-03-26 00:32:54,731 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 00:32:54,731 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 27 [2021-03-26 00:32:54,732 INFO L480 AbstractCegarLoop]: Abstraction has has 41 places, 29 transitions, 195 flow [2021-03-26 00:32:54,733 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 85.0) internal successors, (425), 5 states have internal predecessors, (425), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:32:54,733 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 00:32:54,733 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 00:32:54,733 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-26 00:32:54,733 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 00:32:54,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 00:32:54,734 INFO L82 PathProgramCache]: Analyzing trace with hash 735330483, now seen corresponding path program 1 times [2021-03-26 00:32:54,734 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 00:32:54,735 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [646389074] [2021-03-26 00:32:54,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 00:32:54,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 00:32:54,797 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:32:54,798 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:32:54,800 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:32:54,801 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:32:54,805 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-03-26 00:32:54,808 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-26 00:32:54,822 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:32:54,822 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 00:32:54,829 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 00:32:54,829 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [646389074] [2021-03-26 00:32:54,830 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 00:32:54,831 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-26 00:32:54,831 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1869663179] [2021-03-26 00:32:54,831 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-26 00:32:54,831 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 00:32:54,831 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-26 00:32:54,832 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-03-26 00:32:54,833 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 84 out of 119 [2021-03-26 00:32:54,833 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 29 transitions, 195 flow. Second operand has 6 states, 6 states have (on average 85.0) internal successors, (510), 6 states have internal predecessors, (510), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:32:54,834 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 00:32:54,834 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 84 of 119 [2021-03-26 00:32:54,834 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 00:32:54,901 INFO L129 PetriNetUnfolder]: 24/108 cut-off events. [2021-03-26 00:32:54,901 INFO L130 PetriNetUnfolder]: For 330/374 co-relation queries the response was YES. [2021-03-26 00:32:54,901 INFO L84 FinitePrefix]: Finished finitePrefix Result has 438 conditions, 108 events. 24/108 cut-off events. For 330/374 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 480 event pairs, 5 based on Foata normal form. 7/112 useless extension candidates. Maximal degree in co-relation 417. Up to 34 conditions per place. [2021-03-26 00:32:54,902 INFO L132 encePairwiseOnDemand]: 112/119 looper letters, 11 selfloop transitions, 8 changer transitions 10/39 dead transitions. [2021-03-26 00:32:54,902 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 39 transitions, 334 flow [2021-03-26 00:32:54,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-26 00:32:54,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-26 00:32:54,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 527 transitions. [2021-03-26 00:32:54,904 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7380952380952381 [2021-03-26 00:32:54,904 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 527 transitions. [2021-03-26 00:32:54,904 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 527 transitions. [2021-03-26 00:32:54,905 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 00:32:54,905 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 527 transitions. [2021-03-26 00:32:54,906 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 87.83333333333333) internal successors, (527), 6 states have internal predecessors, (527), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:32:54,907 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 119.0) internal successors, (833), 7 states have internal predecessors, (833), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:32:54,908 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 119.0) internal successors, (833), 7 states have internal predecessors, (833), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:32:54,908 INFO L185 Difference]: Start difference. First operand has 41 places, 29 transitions, 195 flow. Second operand 6 states and 527 transitions. [2021-03-26 00:32:54,908 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 39 transitions, 334 flow [2021-03-26 00:32:54,913 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 39 transitions, 318 flow, removed 8 selfloop flow, removed 3 redundant places. [2021-03-26 00:32:54,914 INFO L241 Difference]: Finished difference. Result has 45 places, 25 transitions, 177 flow [2021-03-26 00:32:54,915 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=119, PETRI_DIFFERENCE_MINUEND_FLOW=187, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=177, PETRI_PLACES=45, PETRI_TRANSITIONS=25} [2021-03-26 00:32:54,915 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 14 predicate places. [2021-03-26 00:32:54,915 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 00:32:54,915 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 45 places, 25 transitions, 177 flow [2021-03-26 00:32:54,916 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 45 places, 25 transitions, 177 flow [2021-03-26 00:32:54,917 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 44 places, 25 transitions, 177 flow [2021-03-26 00:32:54,922 INFO L129 PetriNetUnfolder]: 10/60 cut-off events. [2021-03-26 00:32:54,922 INFO L130 PetriNetUnfolder]: For 150/156 co-relation queries the response was YES. [2021-03-26 00:32:54,922 INFO L84 FinitePrefix]: Finished finitePrefix Result has 224 conditions, 60 events. 10/60 cut-off events. For 150/156 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 233 event pairs, 4 based on Foata normal form. 0/58 useless extension candidates. Maximal degree in co-relation 204. Up to 18 conditions per place. [2021-03-26 00:32:54,923 INFO L142 LiptonReduction]: Number of co-enabled transitions 136 [2021-03-26 00:32:54,969 INFO L154 LiptonReduction]: Checked pairs total: 338 [2021-03-26 00:32:54,969 INFO L156 LiptonReduction]: Total number of compositions: 2 [2021-03-26 00:32:54,969 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 54 [2021-03-26 00:32:54,970 INFO L480 AbstractCegarLoop]: Abstraction has has 44 places, 25 transitions, 181 flow [2021-03-26 00:32:54,970 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 85.0) internal successors, (510), 6 states have internal predecessors, (510), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:32:54,970 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 00:32:54,971 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 00:32:54,971 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-03-26 00:32:54,971 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 00:32:54,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 00:32:54,971 INFO L82 PathProgramCache]: Analyzing trace with hash 793329013, now seen corresponding path program 1 times [2021-03-26 00:32:54,971 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 00:32:54,973 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1560598833] [2021-03-26 00:32:54,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 00:32:54,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 00:32:55,014 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:32:55,015 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:32:55,018 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-03-26 00:32:55,019 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-26 00:32:55,026 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:32:55,026 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 00:32:55,032 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 00:32:55,032 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1560598833] [2021-03-26 00:32:55,032 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 00:32:55,032 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-26 00:32:55,032 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2037420126] [2021-03-26 00:32:55,032 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-26 00:32:55,033 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 00:32:55,033 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-26 00:32:55,033 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-03-26 00:32:55,034 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 84 out of 121 [2021-03-26 00:32:55,035 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 25 transitions, 181 flow. Second operand has 5 states, 5 states have (on average 85.2) internal successors, (426), 5 states have internal predecessors, (426), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:32:55,035 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 00:32:55,035 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 84 of 121 [2021-03-26 00:32:55,035 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 00:32:55,068 INFO L129 PetriNetUnfolder]: 12/65 cut-off events. [2021-03-26 00:32:55,068 INFO L130 PetriNetUnfolder]: For 239/271 co-relation queries the response was YES. [2021-03-26 00:32:55,068 INFO L84 FinitePrefix]: Finished finitePrefix Result has 281 conditions, 65 events. 12/65 cut-off events. For 239/271 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 248 event pairs, 0 based on Foata normal form. 4/66 useless extension candidates. Maximal degree in co-relation 259. Up to 26 conditions per place. [2021-03-26 00:32:55,069 INFO L132 encePairwiseOnDemand]: 111/121 looper letters, 10 selfloop transitions, 10 changer transitions 2/32 dead transitions. [2021-03-26 00:32:55,069 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 32 transitions, 291 flow [2021-03-26 00:32:55,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-26 00:32:55,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-26 00:32:55,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 526 transitions. [2021-03-26 00:32:55,071 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7245179063360881 [2021-03-26 00:32:55,071 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 526 transitions. [2021-03-26 00:32:55,071 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 526 transitions. [2021-03-26 00:32:55,071 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 00:32:55,071 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 526 transitions. [2021-03-26 00:32:55,073 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 87.66666666666667) internal successors, (526), 6 states have internal predecessors, (526), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:32:55,074 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 121.0) internal successors, (847), 7 states have internal predecessors, (847), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:32:55,075 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 121.0) internal successors, (847), 7 states have internal predecessors, (847), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:32:55,075 INFO L185 Difference]: Start difference. First operand has 44 places, 25 transitions, 181 flow. Second operand 6 states and 526 transitions. [2021-03-26 00:32:55,075 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 32 transitions, 291 flow [2021-03-26 00:32:55,076 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 32 transitions, 226 flow, removed 16 selfloop flow, removed 8 redundant places. [2021-03-26 00:32:55,077 INFO L241 Difference]: Finished difference. Result has 46 places, 27 transitions, 202 flow [2021-03-26 00:32:55,077 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=121, PETRI_DIFFERENCE_MINUEND_FLOW=128, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=202, PETRI_PLACES=46, PETRI_TRANSITIONS=27} [2021-03-26 00:32:55,078 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 15 predicate places. [2021-03-26 00:32:55,078 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 00:32:55,078 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 46 places, 27 transitions, 202 flow [2021-03-26 00:32:55,078 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 46 places, 27 transitions, 202 flow [2021-03-26 00:32:55,078 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 44 places, 27 transitions, 202 flow [2021-03-26 00:32:55,083 INFO L129 PetriNetUnfolder]: 10/58 cut-off events. [2021-03-26 00:32:55,083 INFO L130 PetriNetUnfolder]: For 150/158 co-relation queries the response was YES. [2021-03-26 00:32:55,084 INFO L84 FinitePrefix]: Finished finitePrefix Result has 220 conditions, 58 events. 10/58 cut-off events. For 150/158 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 218 event pairs, 4 based on Foata normal form. 0/54 useless extension candidates. Maximal degree in co-relation 201. Up to 17 conditions per place. [2021-03-26 00:32:55,084 INFO L142 LiptonReduction]: Number of co-enabled transitions 130 [2021-03-26 00:32:55,091 INFO L154 LiptonReduction]: Checked pairs total: 137 [2021-03-26 00:32:55,091 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 00:32:55,091 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 13 [2021-03-26 00:32:55,092 INFO L480 AbstractCegarLoop]: Abstraction has has 44 places, 27 transitions, 202 flow [2021-03-26 00:32:55,092 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 85.2) internal successors, (426), 5 states have internal predecessors, (426), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:32:55,092 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 00:32:55,092 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 00:32:55,092 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-03-26 00:32:55,093 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 00:32:55,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 00:32:55,093 INFO L82 PathProgramCache]: Analyzing trace with hash 602889944, now seen corresponding path program 1 times [2021-03-26 00:32:55,093 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 00:32:55,093 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1199094864] [2021-03-26 00:32:55,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 00:32:55,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 00:32:55,144 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:32:55,145 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:32:55,147 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:32:55,147 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:32:55,152 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-03-26 00:32:55,154 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-26 00:32:55,166 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:32:55,167 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 00:32:55,179 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 00:32:55,179 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1199094864] [2021-03-26 00:32:55,179 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 00:32:55,179 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-26 00:32:55,179 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [857656652] [2021-03-26 00:32:55,179 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-26 00:32:55,179 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 00:32:55,180 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-26 00:32:55,180 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-03-26 00:32:55,181 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 84 out of 121 [2021-03-26 00:32:55,182 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 27 transitions, 202 flow. Second operand has 6 states, 6 states have (on average 84.83333333333333) internal successors, (509), 6 states have internal predecessors, (509), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:32:55,182 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 00:32:55,182 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 84 of 121 [2021-03-26 00:32:55,182 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 00:32:55,231 INFO L129 PetriNetUnfolder]: 11/69 cut-off events. [2021-03-26 00:32:55,231 INFO L130 PetriNetUnfolder]: For 210/241 co-relation queries the response was YES. [2021-03-26 00:32:55,232 INFO L84 FinitePrefix]: Finished finitePrefix Result has 291 conditions, 69 events. 11/69 cut-off events. For 210/241 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 287 event pairs, 0 based on Foata normal form. 8/75 useless extension candidates. Maximal degree in co-relation 270. Up to 22 conditions per place. [2021-03-26 00:32:55,232 INFO L132 encePairwiseOnDemand]: 112/121 looper letters, 6 selfloop transitions, 6 changer transitions 15/37 dead transitions. [2021-03-26 00:32:55,232 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 37 transitions, 350 flow [2021-03-26 00:32:55,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-26 00:32:55,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-26 00:32:55,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 526 transitions. [2021-03-26 00:32:55,235 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7245179063360881 [2021-03-26 00:32:55,235 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 526 transitions. [2021-03-26 00:32:55,235 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 526 transitions. [2021-03-26 00:32:55,236 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 00:32:55,236 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 526 transitions. [2021-03-26 00:32:55,237 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 87.66666666666667) internal successors, (526), 6 states have internal predecessors, (526), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:32:55,239 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 121.0) internal successors, (847), 7 states have internal predecessors, (847), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:32:55,240 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 121.0) internal successors, (847), 7 states have internal predecessors, (847), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:32:55,240 INFO L185 Difference]: Start difference. First operand has 44 places, 27 transitions, 202 flow. Second operand 6 states and 526 transitions. [2021-03-26 00:32:55,240 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 37 transitions, 350 flow [2021-03-26 00:32:55,242 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 37 transitions, 335 flow, removed 5 selfloop flow, removed 3 redundant places. [2021-03-26 00:32:55,243 INFO L241 Difference]: Finished difference. Result has 48 places, 22 transitions, 150 flow [2021-03-26 00:32:55,243 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=121, PETRI_DIFFERENCE_MINUEND_FLOW=190, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=150, PETRI_PLACES=48, PETRI_TRANSITIONS=22} [2021-03-26 00:32:55,243 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 17 predicate places. [2021-03-26 00:32:55,243 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 00:32:55,243 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 48 places, 22 transitions, 150 flow [2021-03-26 00:32:55,244 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 48 places, 22 transitions, 150 flow [2021-03-26 00:32:55,244 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 45 places, 22 transitions, 150 flow [2021-03-26 00:32:55,258 INFO L129 PetriNetUnfolder]: 4/29 cut-off events. [2021-03-26 00:32:55,258 INFO L130 PetriNetUnfolder]: For 50/50 co-relation queries the response was YES. [2021-03-26 00:32:55,259 INFO L84 FinitePrefix]: Finished finitePrefix Result has 113 conditions, 29 events. 4/29 cut-off events. For 50/50 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 51 event pairs, 0 based on Foata normal form. 0/29 useless extension candidates. Maximal degree in co-relation 93. Up to 9 conditions per place. [2021-03-26 00:32:55,259 INFO L142 LiptonReduction]: Number of co-enabled transitions 100 [2021-03-26 00:32:55,383 INFO L154 LiptonReduction]: Checked pairs total: 98 [2021-03-26 00:32:55,384 INFO L156 LiptonReduction]: Total number of compositions: 5 [2021-03-26 00:32:55,384 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 141 [2021-03-26 00:32:55,386 INFO L480 AbstractCegarLoop]: Abstraction has has 43 places, 20 transitions, 150 flow [2021-03-26 00:32:55,387 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 84.83333333333333) internal successors, (509), 6 states have internal predecessors, (509), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:32:55,387 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 00:32:55,387 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 00:32:55,387 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-03-26 00:32:55,387 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 00:32:55,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 00:32:55,388 INFO L82 PathProgramCache]: Analyzing trace with hash 968288953, now seen corresponding path program 1 times [2021-03-26 00:32:55,388 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 00:32:55,388 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1109750635] [2021-03-26 00:32:55,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 00:32:55,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 00:32:55,419 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:32:55,420 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 00:32:55,420 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:32:55,420 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:32:55,423 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:32:55,423 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:32:55,427 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-03-26 00:32:55,428 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-26 00:32:55,437 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:32:55,437 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 00:32:55,443 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 00:32:55,443 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1109750635] [2021-03-26 00:32:55,443 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 00:32:55,444 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-26 00:32:55,444 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [681131759] [2021-03-26 00:32:55,444 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-26 00:32:55,444 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 00:32:55,444 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-26 00:32:55,445 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-03-26 00:32:55,446 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 84 out of 126 [2021-03-26 00:32:55,446 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 20 transitions, 150 flow. Second operand has 6 states, 6 states have (on average 85.16666666666667) internal successors, (511), 6 states have internal predecessors, (511), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:32:55,446 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 00:32:55,446 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 84 of 126 [2021-03-26 00:32:55,446 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 00:32:55,499 INFO L129 PetriNetUnfolder]: 2/26 cut-off events. [2021-03-26 00:32:55,500 INFO L130 PetriNetUnfolder]: For 117/136 co-relation queries the response was YES. [2021-03-26 00:32:55,500 INFO L84 FinitePrefix]: Finished finitePrefix Result has 127 conditions, 26 events. 2/26 cut-off events. For 117/136 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 51 event pairs, 0 based on Foata normal form. 8/34 useless extension candidates. Maximal degree in co-relation 109. Up to 9 conditions per place. [2021-03-26 00:32:55,500 INFO L132 encePairwiseOnDemand]: 117/126 looper letters, 3 selfloop transitions, 3 changer transitions 8/23 dead transitions. [2021-03-26 00:32:55,500 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 23 transitions, 206 flow [2021-03-26 00:32:55,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-26 00:32:55,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-26 00:32:55,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 688 transitions. [2021-03-26 00:32:55,504 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6825396825396826 [2021-03-26 00:32:55,504 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 688 transitions. [2021-03-26 00:32:55,505 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 688 transitions. [2021-03-26 00:32:55,505 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 00:32:55,505 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 688 transitions. [2021-03-26 00:32:55,507 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 86.0) internal successors, (688), 8 states have internal predecessors, (688), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:32:55,508 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 126.0) internal successors, (1134), 9 states have internal predecessors, (1134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:32:55,509 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 126.0) internal successors, (1134), 9 states have internal predecessors, (1134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:32:55,509 INFO L185 Difference]: Start difference. First operand has 43 places, 20 transitions, 150 flow. Second operand 8 states and 688 transitions. [2021-03-26 00:32:55,509 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 23 transitions, 206 flow [2021-03-26 00:32:55,510 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 23 transitions, 158 flow, removed 13 selfloop flow, removed 8 redundant places. [2021-03-26 00:32:55,512 INFO L241 Difference]: Finished difference. Result has 46 places, 15 transitions, 80 flow [2021-03-26 00:32:55,512 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=126, PETRI_DIFFERENCE_MINUEND_FLOW=108, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=80, PETRI_PLACES=46, PETRI_TRANSITIONS=15} [2021-03-26 00:32:55,512 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 15 predicate places. [2021-03-26 00:32:55,512 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 00:32:55,512 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 46 places, 15 transitions, 80 flow [2021-03-26 00:32:55,513 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 46 places, 15 transitions, 80 flow [2021-03-26 00:32:55,513 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 40 places, 15 transitions, 80 flow [2021-03-26 00:32:55,516 INFO L129 PetriNetUnfolder]: 0/15 cut-off events. [2021-03-26 00:32:55,516 INFO L130 PetriNetUnfolder]: For 24/24 co-relation queries the response was YES. [2021-03-26 00:32:55,516 INFO L84 FinitePrefix]: Finished finitePrefix Result has 57 conditions, 15 events. 0/15 cut-off events. For 24/24 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 8 event pairs, 0 based on Foata normal form. 0/15 useless extension candidates. Maximal degree in co-relation 0. Up to 3 conditions per place. [2021-03-26 00:32:55,517 INFO L142 LiptonReduction]: Number of co-enabled transitions 44 [2021-03-26 00:32:55,574 INFO L154 LiptonReduction]: Checked pairs total: 46 [2021-03-26 00:32:55,574 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-26 00:32:55,574 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 62 [2021-03-26 00:32:55,575 INFO L480 AbstractCegarLoop]: Abstraction has has 39 places, 14 transitions, 78 flow [2021-03-26 00:32:55,576 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 85.16666666666667) internal successors, (511), 6 states have internal predecessors, (511), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:32:55,576 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 00:32:55,576 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 00:32:55,576 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-03-26 00:32:55,576 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 00:32:55,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 00:32:55,577 INFO L82 PathProgramCache]: Analyzing trace with hash -1088019311, now seen corresponding path program 1 times [2021-03-26 00:32:55,577 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 00:32:55,577 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1343700293] [2021-03-26 00:32:55,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 00:32:55,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 00:32:55,606 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:32:55,606 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:32:55,608 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:32:55,609 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:32:55,612 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-03-26 00:32:55,613 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-26 00:32:55,621 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:32:55,621 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 00:32:55,627 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 00:32:55,627 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1343700293] [2021-03-26 00:32:55,627 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 00:32:55,628 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-26 00:32:55,628 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [587618500] [2021-03-26 00:32:55,628 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-26 00:32:55,628 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 00:32:55,628 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-26 00:32:55,629 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-03-26 00:32:55,629 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 127 [2021-03-26 00:32:55,630 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 14 transitions, 78 flow. Second operand has 6 states, 6 states have (on average 83.0) internal successors, (498), 6 states have internal predecessors, (498), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:32:55,630 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 00:32:55,630 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 127 [2021-03-26 00:32:55,630 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 00:32:55,641 INFO L129 PetriNetUnfolder]: 0/13 cut-off events. [2021-03-26 00:32:55,641 INFO L130 PetriNetUnfolder]: For 46/47 co-relation queries the response was YES. [2021-03-26 00:32:55,642 INFO L84 FinitePrefix]: Finished finitePrefix Result has 52 conditions, 13 events. 0/13 cut-off events. For 46/47 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 5 event pairs, 0 based on Foata normal form. 1/14 useless extension candidates. Maximal degree in co-relation 0. Up to 3 conditions per place. [2021-03-26 00:32:55,642 INFO L132 encePairwiseOnDemand]: 124/127 looper letters, 0 selfloop transitions, 0 changer transitions 13/13 dead transitions. [2021-03-26 00:32:55,642 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 13 transitions, 68 flow [2021-03-26 00:32:55,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-26 00:32:55,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-26 00:32:55,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 333 transitions. [2021-03-26 00:32:55,643 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.655511811023622 [2021-03-26 00:32:55,643 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 333 transitions. [2021-03-26 00:32:55,643 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 333 transitions. [2021-03-26 00:32:55,644 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 00:32:55,644 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 333 transitions. [2021-03-26 00:32:55,644 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 83.25) internal successors, (333), 4 states have internal predecessors, (333), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:32:55,645 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 127.0) internal successors, (635), 5 states have internal predecessors, (635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:32:55,645 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 127.0) internal successors, (635), 5 states have internal predecessors, (635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:32:55,646 INFO L185 Difference]: Start difference. First operand has 39 places, 14 transitions, 78 flow. Second operand 4 states and 333 transitions. [2021-03-26 00:32:55,646 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 13 transitions, 68 flow [2021-03-26 00:32:55,646 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 13 transitions, 48 flow, removed 2 selfloop flow, removed 9 redundant places. [2021-03-26 00:32:55,646 INFO L241 Difference]: Finished difference. Result has 32 places, 0 transitions, 0 flow [2021-03-26 00:32:55,646 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=127, PETRI_DIFFERENCE_MINUEND_FLOW=40, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=13, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=32, PETRI_TRANSITIONS=0} [2021-03-26 00:32:55,647 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 1 predicate places. [2021-03-26 00:32:55,647 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 00:32:55,647 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 32 places, 0 transitions, 0 flow [2021-03-26 00:32:55,647 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 32 places, 0 transitions, 0 flow [2021-03-26 00:32:55,647 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 0 places, 0 transitions, 0 flow [2021-03-26 00:32:55,647 INFO L129 PetriNetUnfolder]: 0/0 cut-off events. [2021-03-26 00:32:55,647 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 00:32:55,647 INFO L84 FinitePrefix]: Finished finitePrefix Result has 0 conditions, 0 events. 0/0 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 0. Compared 0 event pairs, 0 based on Foata normal form. 0/0 useless extension candidates. Maximal degree in co-relation 0. Up to 0 conditions per place. [2021-03-26 00:32:55,648 INFO L142 LiptonReduction]: Number of co-enabled transitions 0 [2021-03-26 00:32:55,648 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 00:32:55,648 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 00:32:55,648 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1 [2021-03-26 00:32:55,649 INFO L480 AbstractCegarLoop]: Abstraction has has 0 places, 0 transitions, 0 flow [2021-03-26 00:32:55,649 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 83.0) internal successors, (498), 6 states have internal predecessors, (498), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:32:55,649 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-03-26 00:32:55,652 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.03 12:32:55 BasicIcfg [2021-03-26 00:32:55,652 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-26 00:32:55,653 INFO L168 Benchmark]: Toolchain (without parser) took 5191.64 ms. Allocated memory was 255.9 MB in the beginning and 419.4 MB in the end (delta: 163.6 MB). Free memory was 233.8 MB in the beginning and 317.1 MB in the end (delta: -83.3 MB). Peak memory consumption was 80.7 MB. Max. memory is 16.0 GB. [2021-03-26 00:32:55,654 INFO L168 Benchmark]: CDTParser took 0.50 ms. Allocated memory is still 255.9 MB. Free memory was 237.8 MB in the beginning and 237.7 MB in the end (delta: 162.8 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-26 00:32:55,654 INFO L168 Benchmark]: CACSL2BoogieTranslator took 529.11 ms. Allocated memory was 255.9 MB in the beginning and 348.1 MB in the end (delta: 92.3 MB). Free memory was 233.8 MB in the beginning and 310.1 MB in the end (delta: -76.3 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.0 GB. [2021-03-26 00:32:55,654 INFO L168 Benchmark]: Boogie Procedure Inliner took 54.79 ms. Allocated memory is still 348.1 MB. Free memory was 309.4 MB in the beginning and 308.0 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-26 00:32:55,655 INFO L168 Benchmark]: Boogie Preprocessor took 32.67 ms. Allocated memory is still 348.1 MB. Free memory was 308.0 MB in the beginning and 306.6 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-26 00:32:55,655 INFO L168 Benchmark]: RCFGBuilder took 398.59 ms. Allocated memory is still 348.1 MB. Free memory was 306.6 MB in the beginning and 285.0 MB in the end (delta: 21.7 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.0 GB. [2021-03-26 00:32:55,656 INFO L168 Benchmark]: TraceAbstraction took 4170.83 ms. Allocated memory was 348.1 MB in the beginning and 419.4 MB in the end (delta: 71.3 MB). Free memory was 284.3 MB in the beginning and 317.1 MB in the end (delta: -32.8 MB). Peak memory consumption was 40.3 MB. Max. memory is 16.0 GB. [2021-03-26 00:32:55,658 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.50 ms. Allocated memory is still 255.9 MB. Free memory was 237.8 MB in the beginning and 237.7 MB in the end (delta: 162.8 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 529.11 ms. Allocated memory was 255.9 MB in the beginning and 348.1 MB in the end (delta: 92.3 MB). Free memory was 233.8 MB in the beginning and 310.1 MB in the end (delta: -76.3 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 54.79 ms. Allocated memory is still 348.1 MB. Free memory was 309.4 MB in the beginning and 308.0 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.0 GB. * Boogie Preprocessor took 32.67 ms. Allocated memory is still 348.1 MB. Free memory was 308.0 MB in the beginning and 306.6 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 398.59 ms. Allocated memory is still 348.1 MB. Free memory was 306.6 MB in the beginning and 285.0 MB in the end (delta: 21.7 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.0 GB. * TraceAbstraction took 4170.83 ms. Allocated memory was 348.1 MB in the beginning and 419.4 MB in the end (delta: 71.3 MB). Free memory was 284.3 MB in the beginning and 317.1 MB in the end (delta: -32.8 MB). Peak memory consumption was 40.3 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1656.2ms, 69 PlacesBefore, 31 PlacesAfterwards, 60 TransitionsBefore, 21 TransitionsAfterwards, 864 CoEnabledTransitionPairs, 5 FixpointIterations, 15 TrivialSequentialCompositions, 23 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 2 ConcurrentYvCompositions, 1 ChoiceCompositions, 41 TotalNumberOfCompositions, 1328 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 681, positive: 634, positive conditional: 634, positive unconditional: 0, negative: 47, negative conditional: 47, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 569, positive: 542, positive conditional: 0, positive unconditional: 542, negative: 27, negative conditional: 0, negative unconditional: 27, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 569, positive: 542, positive conditional: 0, positive unconditional: 542, negative: 27, negative conditional: 0, negative unconditional: 27, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 569, positive: 542, positive conditional: 0, positive unconditional: 542, negative: 27, negative conditional: 0, negative unconditional: 27, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 27, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 27, negative conditional: 0, negative unconditional: 27, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 103, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 103, negative conditional: 0, negative unconditional: 103, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 681, positive: 92, positive conditional: 92, positive unconditional: 0, negative: 20, negative conditional: 20, negative unconditional: 0, unknown: 569, unknown conditional: 569, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 31, Positive cache size: 22, Positive conditional cache size: 22, Positive unconditional cache size: 0, Negative cache size: 9, Negative conditional cache size: 9, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 721.2ms, 40 PlacesBefore, 34 PlacesAfterwards, 25 TransitionsBefore, 22 TransitionsAfterwards, 158 CoEnabledTransitionPairs, 3 FixpointIterations, 3 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 3 TotalNumberOfCompositions, 102 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 48, positive: 42, positive conditional: 42, positive unconditional: 0, negative: 6, negative conditional: 6, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 16, positive: 14, positive conditional: 1, positive unconditional: 13, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 16, positive: 14, positive conditional: 1, positive unconditional: 13, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 16, positive: 14, positive conditional: 0, positive unconditional: 14, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 2, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 11, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 11, negative conditional: 0, negative unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 48, positive: 28, positive conditional: 28, positive unconditional: 0, negative: 4, negative conditional: 4, negative unconditional: 0, unknown: 16, unknown conditional: 16, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 47, Positive cache size: 36, Positive conditional cache size: 36, Positive unconditional cache size: 0, Negative cache size: 11, Negative conditional cache size: 11, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 24.9ms, 44 PlacesBefore, 41 PlacesAfterwards, 29 TransitionsBefore, 29 TransitionsAfterwards, 194 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 151 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 62, positive: 53, positive conditional: 53, positive unconditional: 0, negative: 9, negative conditional: 9, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 29, positive: 26, positive conditional: 8, positive unconditional: 18, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 29, positive: 26, positive conditional: 8, positive unconditional: 18, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 29, positive: 26, positive conditional: 0, positive unconditional: 26, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 3, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 10, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 10, negative conditional: 0, negative unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 62, positive: 27, positive conditional: 27, positive unconditional: 0, negative: 6, negative conditional: 6, negative unconditional: 0, unknown: 29, unknown conditional: 29, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 76, Positive cache size: 62, Positive conditional cache size: 62, Positive unconditional cache size: 0, Negative cache size: 14, Negative conditional cache size: 14, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 52.5ms, 45 PlacesBefore, 44 PlacesAfterwards, 25 TransitionsBefore, 25 TransitionsAfterwards, 136 CoEnabledTransitionPairs, 3 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 1 ConcurrentYvCompositions, 0 ChoiceCompositions, 2 TotalNumberOfCompositions, 338 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 104, positive: 77, positive conditional: 77, positive unconditional: 0, negative: 27, negative conditional: 27, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 19, positive: 19, positive conditional: 0, positive unconditional: 19, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 19, positive: 19, positive conditional: 0, positive unconditional: 19, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 19, positive: 19, positive conditional: 0, positive unconditional: 19, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 104, positive: 58, positive conditional: 58, positive unconditional: 0, negative: 27, negative conditional: 27, negative unconditional: 0, unknown: 19, unknown conditional: 19, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 56, Positive cache size: 48, Positive conditional cache size: 48, Positive unconditional cache size: 0, Negative cache size: 8, Negative conditional cache size: 8, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 12.7ms, 46 PlacesBefore, 44 PlacesAfterwards, 27 TransitionsBefore, 27 TransitionsAfterwards, 130 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 137 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 27, positive: 16, positive conditional: 16, positive unconditional: 0, negative: 11, negative conditional: 11, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 8, positive: 6, positive conditional: 2, positive unconditional: 4, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 8, positive: 6, positive conditional: 2, positive unconditional: 4, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 8, positive: 6, positive conditional: 0, positive unconditional: 6, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 2, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 4, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 27, positive: 10, positive conditional: 10, positive unconditional: 0, negative: 9, negative conditional: 9, negative unconditional: 0, unknown: 8, unknown conditional: 8, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 64, Positive cache size: 54, Positive conditional cache size: 54, Positive unconditional cache size: 0, Negative cache size: 10, Negative conditional cache size: 10, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 140.2ms, 48 PlacesBefore, 43 PlacesAfterwards, 22 TransitionsBefore, 20 TransitionsAfterwards, 100 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 2 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 3 ConcurrentYvCompositions, 0 ChoiceCompositions, 5 TotalNumberOfCompositions, 98 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 40, positive: 32, positive conditional: 32, positive unconditional: 0, negative: 8, negative conditional: 8, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 8, positive: 8, positive conditional: 3, positive unconditional: 5, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 8, positive: 8, positive conditional: 3, positive unconditional: 5, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 8, positive: 8, positive conditional: 0, positive unconditional: 8, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 40, positive: 24, positive conditional: 24, positive unconditional: 0, negative: 8, negative conditional: 8, negative unconditional: 0, unknown: 8, unknown conditional: 8, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 11, Positive cache size: 8, Positive conditional cache size: 8, Positive unconditional cache size: 0, Negative cache size: 3, Negative conditional cache size: 3, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 61.8ms, 46 PlacesBefore, 39 PlacesAfterwards, 15 TransitionsBefore, 14 TransitionsAfterwards, 44 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 46 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 11, positive: 4, positive conditional: 4, positive unconditional: 0, negative: 7, negative conditional: 7, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 4, positive: 4, positive conditional: 1, positive unconditional: 3, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 4, positive: 4, positive conditional: 1, positive unconditional: 3, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 4, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 11, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 7, negative conditional: 7, negative unconditional: 0, unknown: 4, unknown conditional: 4, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 9, Positive cache size: 6, Positive conditional cache size: 6, Positive unconditional cache size: 0, Negative cache size: 3, Negative conditional cache size: 3, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.7ms, 32 PlacesBefore, 0 PlacesAfterwards, 0 TransitionsBefore, 0 TransitionsAfterwards, 0 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 9, Positive cache size: 6, Positive conditional cache size: 6, Positive unconditional cache size: 0, Negative cache size: 3, Negative conditional cache size: 3, Negative unconditional cache size: 0 - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 74 locations, 1 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 6.3ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 4088.6ms, OverallIterations: 7, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 518.9ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 1764.4ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 67 SDtfs, 79 SDslu, 79 SDs, 0 SdLazy, 124 SolverSat, 36 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 111.5ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 40 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 215.4ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=202occurred in iteration=4, InterpolantAutomatonStates: 44, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 18.1ms SsaConstructionTime, 145.2ms SatisfiabilityAnalysisTime, 455.9ms InterpolantComputationTime, 85 NumberOfCodeBlocks, 85 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 78 ConstructedInterpolants, 0 QuantifiedInterpolants, 552 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! Received shutdown request...