/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/safe022_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-d5b4239aa45c8d22a30959944f2ef622f7386a6d-d5b4239 [2021-03-26 00:44:49,963 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-26 00:44:49,966 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-26 00:44:50,000 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-03-26 00:44:50,021 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-26 00:44:50,023 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-26 00:44:50,024 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-26 00:44:50,025 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-26 00:44:50,028 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-26 00:44:50,029 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-26 00:44:50,035 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-26 00:44:50,041 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-26 00:44:50,042 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-26 00:44:50,043 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-26 00:44:50,044 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-26 00:44:50,046 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-26 00:44:50,051 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-03-26 00:44:50,059 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-26 00:44:50,059 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-26 00:44:50,059 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-26 00:44:50,063 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 00:44:50,090 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-26 00:44:50,090 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-26 00:44:50,093 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-26 00:44:50,094 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-26 00:44:50,094 INFO L138 SettingsManager]: * Use SBE=true [2021-03-26 00:44:50,094 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-26 00:44:50,094 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-26 00:44:50,094 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-26 00:44:50,094 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-26 00:44:50,095 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-26 00:44:50,095 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-26 00:44:50,095 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-26 00:44:50,095 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-26 00:44:50,096 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-26 00:44:50,096 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-26 00:44:50,096 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-26 00:44:50,096 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-26 00:44:50,096 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-26 00:44:50,096 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-26 00:44:50,096 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-26 00:44:50,096 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-26 00:44:50,097 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-26 00:44:50,097 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-26 00:44:50,097 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-26 00:44:50,097 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-26 00:44:50,097 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-26 00:44:50,097 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-26 00:44:50,097 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=SEMANTIC_BASED_MOVER_CHECK_WITH_PREDICATES [2021-03-26 00:44:50,097 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-03-26 00:44:50,097 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-03-26 00:44:50,097 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-26 00:44:50,409 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-26 00:44:50,424 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-26 00:44:50,426 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-26 00:44:50,427 INFO L271 PluginConnector]: Initializing CDTParser... [2021-03-26 00:44:50,427 INFO L275 PluginConnector]: CDTParser initialized [2021-03-26 00:44:50,428 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe022_tso.oepc.i [2021-03-26 00:44:50,481 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1470e0cf9/403029aa56af4d4ab274c0e5e3701e74/FLAG0522d9703 [2021-03-26 00:44:50,834 INFO L306 CDTParser]: Found 1 translation units. [2021-03-26 00:44:50,835 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe022_tso.oepc.i [2021-03-26 00:44:50,852 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1470e0cf9/403029aa56af4d4ab274c0e5e3701e74/FLAG0522d9703 [2021-03-26 00:44:51,214 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1470e0cf9/403029aa56af4d4ab274c0e5e3701e74 [2021-03-26 00:44:51,216 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-26 00:44:51,218 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-03-26 00:44:51,219 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-03-26 00:44:51,220 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-03-26 00:44:51,222 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-03-26 00:44:51,222 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.03 12:44:51" (1/1) ... [2021-03-26 00:44:51,223 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@608d38f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:44:51, skipping insertion in model container [2021-03-26 00:44:51,223 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.03 12:44:51" (1/1) ... [2021-03-26 00:44:51,230 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-03-26 00:44:51,277 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-03-26 00:44:51,363 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/safe022_tso.oepc.i[950,963] [2021-03-26 00:44:51,506 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-26 00:44:51,512 INFO L203 MainTranslator]: Completed pre-run [2021-03-26 00:44:51,520 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/safe022_tso.oepc.i[950,963] [2021-03-26 00:44:51,533 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-26 00:44:51,576 INFO L208 MainTranslator]: Completed translation [2021-03-26 00:44:51,576 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:44:51 WrapperNode [2021-03-26 00:44:51,576 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-03-26 00:44:51,577 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-26 00:44:51,577 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-26 00:44:51,577 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-26 00:44:51,581 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:44:51" (1/1) ... [2021-03-26 00:44:51,599 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:44:51" (1/1) ... [2021-03-26 00:44:51,615 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-26 00:44:51,615 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-26 00:44:51,615 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-26 00:44:51,615 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-26 00:44:51,621 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:44:51" (1/1) ... [2021-03-26 00:44:51,621 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:44:51" (1/1) ... [2021-03-26 00:44:51,624 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:44:51" (1/1) ... [2021-03-26 00:44:51,624 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:44:51" (1/1) ... [2021-03-26 00:44:51,627 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:44:51" (1/1) ... [2021-03-26 00:44:51,628 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:44:51" (1/1) ... [2021-03-26 00:44:51,629 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:44:51" (1/1) ... [2021-03-26 00:44:51,630 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-26 00:44:51,631 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-26 00:44:51,631 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-26 00:44:51,631 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-26 00:44:51,632 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:44:51" (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 00:44:51,691 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-03-26 00:44:51,691 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-03-26 00:44:51,692 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-03-26 00:44:51,692 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-03-26 00:44:51,692 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-03-26 00:44:51,692 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-03-26 00:44:51,692 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-03-26 00:44:51,692 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-03-26 00:44:51,692 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-03-26 00:44:51,692 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-03-26 00:44:51,692 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-26 00:44:51,692 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-26 00:44:51,693 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 00:44:51,896 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-26 00:44:51,896 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-03-26 00:44:51,905 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.03 12:44:51 BoogieIcfgContainer [2021-03-26 00:44:51,906 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-26 00:44:51,907 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-26 00:44:51,907 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-26 00:44:51,909 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-26 00:44:51,909 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.03 12:44:51" (1/3) ... [2021-03-26 00:44:51,909 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@390b378c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.03 12:44:51, skipping insertion in model container [2021-03-26 00:44:51,909 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:44:51" (2/3) ... [2021-03-26 00:44:51,909 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@390b378c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.03 12:44:51, skipping insertion in model container [2021-03-26 00:44:51,910 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.03 12:44:51" (3/3) ... [2021-03-26 00:44:51,910 INFO L111 eAbstractionObserver]: Analyzing ICFG safe022_tso.oepc.i [2021-03-26 00:44:51,914 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-26 00:44:51,916 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-03-26 00:44:51,917 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-26 00:44:51,942 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:44:51,942 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:44:51,942 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:44:51,942 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:44:51,943 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:44:51,943 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:44:51,943 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:44:51,943 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:44:51,943 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:44:51,944 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:44:51,944 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:44:51,944 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:44:51,945 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:44:51,945 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:44:51,945 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:44:51,945 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:44:51,945 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:44:51,945 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:44:51,945 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:44:51,945 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:44:51,946 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:44:51,946 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:44:51,946 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:44:51,946 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:44:51,948 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:44:51,949 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:44:51,949 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:44:51,950 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:44:51,954 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:44:51,954 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:44:51,954 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:44:51,954 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:44:51,956 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-26 00:44:51,970 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-03-26 00:44:51,995 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-26 00:44:51,996 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-26 00:44:51,996 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-26 00:44:51,996 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-26 00:44:51,996 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-26 00:44:51,996 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-26 00:44:51,996 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-26 00:44:51,996 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-26 00:44:52,006 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 66 places, 61 transitions, 132 flow [2021-03-26 00:44:52,045 INFO L129 PetriNetUnfolder]: 2/59 cut-off events. [2021-03-26 00:44:52,045 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 00:44:52,050 INFO L84 FinitePrefix]: Finished finitePrefix Result has 66 conditions, 59 events. 2/59 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 35 event pairs, 0 based on Foata normal form. 0/56 useless extension candidates. Maximal degree in co-relation 42. Up to 2 conditions per place. [2021-03-26 00:44:52,050 INFO L82 GeneralOperation]: Start removeDead. Operand has 66 places, 61 transitions, 132 flow [2021-03-26 00:44:52,064 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 55 places, 49 transitions, 104 flow [2021-03-26 00:44:52,065 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 00:44:52,076 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 55 places, 49 transitions, 104 flow [2021-03-26 00:44:52,079 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 55 places, 49 transitions, 104 flow [2021-03-26 00:44:52,080 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 55 places, 49 transitions, 104 flow [2021-03-26 00:44:52,103 INFO L129 PetriNetUnfolder]: 1/49 cut-off events. [2021-03-26 00:44:52,103 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 00:44:52,103 INFO L84 FinitePrefix]: Finished finitePrefix Result has 56 conditions, 49 events. 1/49 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 30 event pairs, 0 based on Foata normal form. 0/48 useless extension candidates. Maximal degree in co-relation 32. Up to 2 conditions per place. [2021-03-26 00:44:52,105 INFO L142 LiptonReduction]: Number of co-enabled transitions 456 [2021-03-26 00:44:53,091 INFO L154 LiptonReduction]: Checked pairs total: 608 [2021-03-26 00:44:53,092 INFO L156 LiptonReduction]: Total number of compositions: 34 [2021-03-26 00:44:53,093 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1029 [2021-03-26 00:44:53,100 INFO L129 PetriNetUnfolder]: 0/13 cut-off events. [2021-03-26 00:44:53,100 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 00:44:53,100 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 00:44:53,101 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 00:44:53,101 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 00:44:53,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 00:44:53,105 INFO L82 PathProgramCache]: Analyzing trace with hash -1656014901, now seen corresponding path program 1 times [2021-03-26 00:44:53,110 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 00:44:53,110 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [541142799] [2021-03-26 00:44:53,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 00:44:53,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 00:44:53,242 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:44:53,243 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 00:44:53,243 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:44:53,244 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:44:53,248 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 00:44:53,249 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [541142799] [2021-03-26 00:44:53,249 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 00:44:53,250 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-26 00:44:53,250 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1012146433] [2021-03-26 00:44:53,256 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-26 00:44:53,256 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 00:44:53,264 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-26 00:44:53,265 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-26 00:44:53,266 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 95 [2021-03-26 00:44:53,269 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 22 places, 15 transitions, 36 flow. Second operand has 3 states, 3 states have (on average 81.66666666666667) internal successors, (245), 3 states have internal predecessors, (245), 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 00:44:53,269 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 00:44:53,269 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 95 [2021-03-26 00:44:53,270 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 00:44:53,279 INFO L129 PetriNetUnfolder]: 0/15 cut-off events. [2021-03-26 00:44:53,279 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 00:44:53,280 INFO L84 FinitePrefix]: Finished finitePrefix Result has 26 conditions, 15 events. 0/15 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 11 event pairs, 0 based on Foata normal form. 1/16 useless extension candidates. Maximal degree in co-relation 0. Up to 3 conditions per place. [2021-03-26 00:44:53,280 INFO L132 encePairwiseOnDemand]: 92/95 looper letters, 1 selfloop transitions, 2 changer transitions 0/15 dead transitions. [2021-03-26 00:44:53,281 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 24 places, 15 transitions, 42 flow [2021-03-26 00:44:53,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-26 00:44:53,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-26 00:44:53,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 247 transitions. [2021-03-26 00:44:53,289 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8666666666666667 [2021-03-26 00:44:53,290 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 247 transitions. [2021-03-26 00:44:53,290 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 247 transitions. [2021-03-26 00:44:53,291 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 00:44:53,293 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 247 transitions. [2021-03-26 00:44:53,295 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 82.33333333333333) internal successors, (247), 3 states have internal predecessors, (247), 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 00:44:53,298 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 95.0) internal successors, (380), 4 states have internal predecessors, (380), 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 00:44:53,299 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 95.0) internal successors, (380), 4 states have internal predecessors, (380), 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 00:44:53,300 INFO L185 Difference]: Start difference. First operand has 22 places, 15 transitions, 36 flow. Second operand 3 states and 247 transitions. [2021-03-26 00:44:53,301 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 24 places, 15 transitions, 42 flow [2021-03-26 00:44:53,303 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 22 places, 15 transitions, 40 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-03-26 00:44:53,304 INFO L241 Difference]: Finished difference. Result has 23 places, 15 transitions, 42 flow [2021-03-26 00:44:53,305 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=95, PETRI_DIFFERENCE_MINUEND_FLOW=34, PETRI_DIFFERENCE_MINUEND_PLACES=20, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=15, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=42, PETRI_PLACES=23, PETRI_TRANSITIONS=15} [2021-03-26 00:44:53,305 INFO L343 CegarLoopForPetriNet]: 22 programPoint places, 1 predicate places. [2021-03-26 00:44:53,306 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 00:44:53,306 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 23 places, 15 transitions, 42 flow [2021-03-26 00:44:53,306 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 23 places, 15 transitions, 42 flow [2021-03-26 00:44:53,306 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 23 places, 15 transitions, 42 flow [2021-03-26 00:44:53,308 INFO L129 PetriNetUnfolder]: 0/15 cut-off events. [2021-03-26 00:44:53,308 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-03-26 00:44:53,309 INFO L84 FinitePrefix]: Finished finitePrefix Result has 26 conditions, 15 events. 0/15 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 11 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 00:44:53,309 INFO L142 LiptonReduction]: Number of co-enabled transitions 64 [2021-03-26 00:44:53,665 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 74 [2021-03-26 00:44:53,851 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 74 [2021-03-26 00:44:53,910 INFO L154 LiptonReduction]: Checked pairs total: 160 [2021-03-26 00:44:53,911 INFO L156 LiptonReduction]: Total number of compositions: 3 [2021-03-26 00:44:53,911 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 605 [2021-03-26 00:44:53,912 INFO L480 AbstractCegarLoop]: Abstraction has has 20 places, 12 transitions, 36 flow [2021-03-26 00:44:53,912 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 81.66666666666667) internal successors, (245), 3 states have internal predecessors, (245), 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 00:44:53,912 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 00:44:53,912 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 00:44:53,912 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-26 00:44:53,912 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 00:44:53,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 00:44:53,913 INFO L82 PathProgramCache]: Analyzing trace with hash 202651502, now seen corresponding path program 1 times [2021-03-26 00:44:53,913 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 00:44:53,913 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2059959382] [2021-03-26 00:44:53,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 00:44:53,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 00:44:53,956 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:44:53,957 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 00:44:53,957 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:44:53,957 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:44:53,963 INFO L142 QuantifierPusher]: treesize reduction 3, result has 75.0 percent of original size [2021-03-26 00:44:53,964 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 00:44:53,969 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 00:44:53,969 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2059959382] [2021-03-26 00:44:53,969 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 00:44:53,969 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-26 00:44:53,969 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [676125899] [2021-03-26 00:44:53,970 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-26 00:44:53,970 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 00:44:53,971 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-26 00:44:53,971 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-26 00:44:53,972 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 98 [2021-03-26 00:44:53,972 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 20 places, 12 transitions, 36 flow. Second operand has 4 states, 4 states have (on average 75.75) internal successors, (303), 4 states have internal predecessors, (303), 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 00:44:53,972 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 00:44:53,972 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 98 [2021-03-26 00:44:53,972 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 00:44:53,992 INFO L129 PetriNetUnfolder]: 4/24 cut-off events. [2021-03-26 00:44:53,992 INFO L130 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2021-03-26 00:44:53,992 INFO L84 FinitePrefix]: Finished finitePrefix Result has 54 conditions, 24 events. 4/24 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 43 event pairs, 1 based on Foata normal form. 2/26 useless extension candidates. Maximal degree in co-relation 44. Up to 9 conditions per place. [2021-03-26 00:44:53,992 INFO L132 encePairwiseOnDemand]: 93/98 looper letters, 4 selfloop transitions, 6 changer transitions 0/17 dead transitions. [2021-03-26 00:44:53,992 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 24 places, 17 transitions, 71 flow [2021-03-26 00:44:53,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-26 00:44:53,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-26 00:44:53,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 387 transitions. [2021-03-26 00:44:53,995 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.789795918367347 [2021-03-26 00:44:53,995 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 387 transitions. [2021-03-26 00:44:53,995 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 387 transitions. [2021-03-26 00:44:53,996 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 00:44:53,996 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 387 transitions. [2021-03-26 00:44:53,997 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 77.4) internal successors, (387), 5 states have internal predecessors, (387), 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 00:44:53,999 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 98.0) internal successors, (588), 6 states have internal predecessors, (588), 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 00:44:53,999 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 98.0) internal successors, (588), 6 states have internal predecessors, (588), 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 00:44:53,999 INFO L185 Difference]: Start difference. First operand has 20 places, 12 transitions, 36 flow. Second operand 5 states and 387 transitions. [2021-03-26 00:44:53,999 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 24 places, 17 transitions, 71 flow [2021-03-26 00:44:54,000 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 22 places, 17 transitions, 65 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-03-26 00:44:54,000 INFO L241 Difference]: Finished difference. Result has 24 places, 16 transitions, 67 flow [2021-03-26 00:44:54,000 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=98, PETRI_DIFFERENCE_MINUEND_FLOW=32, PETRI_DIFFERENCE_MINUEND_PLACES=18, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=12, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=8, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=67, PETRI_PLACES=24, PETRI_TRANSITIONS=16} [2021-03-26 00:44:54,001 INFO L343 CegarLoopForPetriNet]: 22 programPoint places, 2 predicate places. [2021-03-26 00:44:54,001 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 00:44:54,001 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 24 places, 16 transitions, 67 flow [2021-03-26 00:44:54,001 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 24 places, 16 transitions, 67 flow [2021-03-26 00:44:54,001 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 24 places, 16 transitions, 67 flow [2021-03-26 00:44:54,004 INFO L129 PetriNetUnfolder]: 2/21 cut-off events. [2021-03-26 00:44:54,004 INFO L130 PetriNetUnfolder]: For 9/10 co-relation queries the response was YES. [2021-03-26 00:44:54,004 INFO L84 FinitePrefix]: Finished finitePrefix Result has 55 conditions, 21 events. 2/21 cut-off events. For 9/10 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 48 event pairs, 0 based on Foata normal form. 1/22 useless extension candidates. Maximal degree in co-relation 45. Up to 7 conditions per place. [2021-03-26 00:44:54,004 INFO L142 LiptonReduction]: Number of co-enabled transitions 58 [2021-03-26 00:44:54,009 INFO L154 LiptonReduction]: Checked pairs total: 55 [2021-03-26 00:44:54,009 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 00:44:54,009 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 8 [2021-03-26 00:44:54,010 INFO L480 AbstractCegarLoop]: Abstraction has has 24 places, 16 transitions, 67 flow [2021-03-26 00:44:54,010 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 75.75) internal successors, (303), 4 states have internal predecessors, (303), 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 00:44:54,010 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 00:44:54,010 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 00:44:54,010 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-26 00:44:54,010 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 00:44:54,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 00:44:54,011 INFO L82 PathProgramCache]: Analyzing trace with hash -1894935309, now seen corresponding path program 1 times [2021-03-26 00:44:54,011 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 00:44:54,011 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1994821865] [2021-03-26 00:44:54,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 00:44:54,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 00:44:54,060 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:44:54,061 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:44:54,063 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:44:54,064 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:44:54,066 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 00:44:54,067 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1994821865] [2021-03-26 00:44:54,067 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 00:44:54,067 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-26 00:44:54,067 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [237127886] [2021-03-26 00:44:54,067 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-26 00:44:54,067 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 00:44:54,067 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-26 00:44:54,068 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-26 00:44:54,068 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 98 [2021-03-26 00:44:54,069 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 24 places, 16 transitions, 67 flow. Second operand has 4 states, 4 states have (on average 78.75) internal successors, (315), 4 states have internal predecessors, (315), 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 00:44:54,069 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 00:44:54,069 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 98 [2021-03-26 00:44:54,069 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 00:44:54,082 INFO L129 PetriNetUnfolder]: 1/20 cut-off events. [2021-03-26 00:44:54,082 INFO L130 PetriNetUnfolder]: For 20/22 co-relation queries the response was YES. [2021-03-26 00:44:54,082 INFO L84 FinitePrefix]: Finished finitePrefix Result has 56 conditions, 20 events. 1/20 cut-off events. For 20/22 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 37 event pairs, 0 based on Foata normal form. 4/24 useless extension candidates. Maximal degree in co-relation 44. Up to 5 conditions per place. [2021-03-26 00:44:54,083 INFO L132 encePairwiseOnDemand]: 94/98 looper letters, 1 selfloop transitions, 3 changer transitions 4/16 dead transitions. [2021-03-26 00:44:54,083 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 27 places, 16 transitions, 79 flow [2021-03-26 00:44:54,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-26 00:44:54,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-26 00:44:54,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 319 transitions. [2021-03-26 00:44:54,084 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8137755102040817 [2021-03-26 00:44:54,084 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 319 transitions. [2021-03-26 00:44:54,084 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 319 transitions. [2021-03-26 00:44:54,085 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 00:44:54,085 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 319 transitions. [2021-03-26 00:44:54,086 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 79.75) internal successors, (319), 4 states have internal predecessors, (319), 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 00:44:54,087 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 98.0) internal successors, (490), 5 states have internal predecessors, (490), 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 00:44:54,088 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 98.0) internal successors, (490), 5 states have internal predecessors, (490), 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 00:44:54,088 INFO L185 Difference]: Start difference. First operand has 24 places, 16 transitions, 67 flow. Second operand 4 states and 319 transitions. [2021-03-26 00:44:54,088 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 27 places, 16 transitions, 79 flow [2021-03-26 00:44:54,088 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 27 places, 16 transitions, 79 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-03-26 00:44:54,089 INFO L241 Difference]: Finished difference. Result has 29 places, 12 transitions, 62 flow [2021-03-26 00:44:54,089 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=98, PETRI_DIFFERENCE_MINUEND_FLOW=67, PETRI_DIFFERENCE_MINUEND_PLACES=24, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=16, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=62, PETRI_PLACES=29, PETRI_TRANSITIONS=12} [2021-03-26 00:44:54,089 INFO L343 CegarLoopForPetriNet]: 22 programPoint places, 7 predicate places. [2021-03-26 00:44:54,089 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 00:44:54,089 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 29 places, 12 transitions, 62 flow [2021-03-26 00:44:54,089 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 29 places, 12 transitions, 62 flow [2021-03-26 00:44:54,090 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 28 places, 12 transitions, 62 flow [2021-03-26 00:44:54,092 INFO L129 PetriNetUnfolder]: 0/12 cut-off events. [2021-03-26 00:44:54,092 INFO L130 PetriNetUnfolder]: For 10/10 co-relation queries the response was YES. [2021-03-26 00:44:54,092 INFO L84 FinitePrefix]: Finished finitePrefix Result has 41 conditions, 12 events. 0/12 cut-off events. For 10/10 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 9 event pairs, 0 based on Foata normal form. 0/12 useless extension candidates. Maximal degree in co-relation 0. Up to 3 conditions per place. [2021-03-26 00:44:54,092 INFO L142 LiptonReduction]: Number of co-enabled transitions 36 [2021-03-26 00:44:54,120 INFO L154 LiptonReduction]: Checked pairs total: 39 [2021-03-26 00:44:54,120 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-26 00:44:54,120 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 31 [2021-03-26 00:44:54,125 INFO L480 AbstractCegarLoop]: Abstraction has has 27 places, 11 transitions, 60 flow [2021-03-26 00:44:54,125 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 78.75) internal successors, (315), 4 states have internal predecessors, (315), 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 00:44:54,125 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 00:44:54,125 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 00:44:54,125 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-03-26 00:44:54,126 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 00:44:54,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 00:44:54,126 INFO L82 PathProgramCache]: Analyzing trace with hash 1386511719, now seen corresponding path program 1 times [2021-03-26 00:44:54,126 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 00:44:54,126 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [651021815] [2021-03-26 00:44:54,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 00:44:54,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 00:44:54,189 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:44:54,198 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:44:54,200 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:44:54,201 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 00:44:54,201 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 00:44:54,201 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [651021815] [2021-03-26 00:44:54,201 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 00:44:54,201 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-26 00:44:54,201 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [306802807] [2021-03-26 00:44:54,201 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-26 00:44:54,201 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 00:44:54,202 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-26 00:44:54,202 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-26 00:44:54,203 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 99 [2021-03-26 00:44:54,203 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 27 places, 11 transitions, 60 flow. Second operand has 3 states, 3 states have (on average 79.66666666666667) internal successors, (239), 3 states have internal predecessors, (239), 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 00:44:54,203 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 00:44:54,203 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 99 [2021-03-26 00:44:54,203 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 00:44:54,215 INFO L129 PetriNetUnfolder]: 3/19 cut-off events. [2021-03-26 00:44:54,215 INFO L130 PetriNetUnfolder]: For 37/37 co-relation queries the response was YES. [2021-03-26 00:44:54,216 INFO L84 FinitePrefix]: Finished finitePrefix Result has 69 conditions, 19 events. 3/19 cut-off events. For 37/37 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 22 event pairs, 1 based on Foata normal form. 1/19 useless extension candidates. Maximal degree in co-relation 53. Up to 10 conditions per place. [2021-03-26 00:44:54,216 INFO L132 encePairwiseOnDemand]: 95/99 looper letters, 3 selfloop transitions, 3 changer transitions 0/13 dead transitions. [2021-03-26 00:44:54,216 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 29 places, 13 transitions, 76 flow [2021-03-26 00:44:54,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-26 00:44:54,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-26 00:44:54,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 244 transitions. [2021-03-26 00:44:54,217 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8215488215488216 [2021-03-26 00:44:54,217 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 244 transitions. [2021-03-26 00:44:54,217 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 244 transitions. [2021-03-26 00:44:54,217 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 00:44:54,217 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 244 transitions. [2021-03-26 00:44:54,218 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 81.33333333333333) internal successors, (244), 3 states have internal predecessors, (244), 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 00:44:54,219 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 99.0) internal successors, (396), 4 states have internal predecessors, (396), 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 00:44:54,219 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 99.0) internal successors, (396), 4 states have internal predecessors, (396), 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 00:44:54,219 INFO L185 Difference]: Start difference. First operand has 27 places, 11 transitions, 60 flow. Second operand 3 states and 244 transitions. [2021-03-26 00:44:54,219 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 29 places, 13 transitions, 76 flow [2021-03-26 00:44:54,220 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 20 places, 13 transitions, 48 flow, removed 5 selfloop flow, removed 9 redundant places. [2021-03-26 00:44:54,220 INFO L241 Difference]: Finished difference. Result has 21 places, 13 transitions, 51 flow [2021-03-26 00:44:54,220 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=99, PETRI_DIFFERENCE_MINUEND_FLOW=32, PETRI_DIFFERENCE_MINUEND_PLACES=18, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=11, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=8, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=51, PETRI_PLACES=21, PETRI_TRANSITIONS=13} [2021-03-26 00:44:54,220 INFO L343 CegarLoopForPetriNet]: 22 programPoint places, -1 predicate places. [2021-03-26 00:44:54,220 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 00:44:54,220 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 21 places, 13 transitions, 51 flow [2021-03-26 00:44:54,220 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 21 places, 13 transitions, 51 flow [2021-03-26 00:44:54,221 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 21 places, 13 transitions, 51 flow [2021-03-26 00:44:54,223 INFO L129 PetriNetUnfolder]: 3/19 cut-off events. [2021-03-26 00:44:54,227 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 00:44:54,227 INFO L84 FinitePrefix]: Finished finitePrefix Result has 44 conditions, 19 events. 3/19 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 22 event pairs, 1 based on Foata normal form. 0/18 useless extension candidates. Maximal degree in co-relation 35. Up to 10 conditions per place. [2021-03-26 00:44:54,227 INFO L142 LiptonReduction]: Number of co-enabled transitions 22 [2021-03-26 00:44:54,297 INFO L154 LiptonReduction]: Checked pairs total: 14 [2021-03-26 00:44:54,298 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-26 00:44:54,298 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 78 [2021-03-26 00:44:54,301 INFO L480 AbstractCegarLoop]: Abstraction has has 21 places, 13 transitions, 52 flow [2021-03-26 00:44:54,301 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 79.66666666666667) internal successors, (239), 3 states have internal predecessors, (239), 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 00:44:54,301 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 00:44:54,301 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 00:44:54,301 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-03-26 00:44:54,301 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 00:44:54,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 00:44:54,302 INFO L82 PathProgramCache]: Analyzing trace with hash 777119814, now seen corresponding path program 1 times [2021-03-26 00:44:54,303 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 00:44:54,303 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [706405928] [2021-03-26 00:44:54,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 00:44:54,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 00:44:54,362 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:44:54,363 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:44:54,365 INFO L142 QuantifierPusher]: treesize reduction 4, result has 50.0 percent of original size [2021-03-26 00:44:54,365 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-26 00:44:54,368 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:44:54,368 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 00:44:54,369 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 00:44:54,369 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [706405928] [2021-03-26 00:44:54,369 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 00:44:54,369 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-26 00:44:54,370 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [666301506] [2021-03-26 00:44:54,370 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-26 00:44:54,370 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 00:44:54,371 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-26 00:44:54,371 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-03-26 00:44:54,380 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 100 [2021-03-26 00:44:54,381 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 21 places, 13 transitions, 52 flow. Second operand has 4 states, 4 states have (on average 79.75) internal successors, (319), 4 states have internal predecessors, (319), 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 00:44:54,381 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 00:44:54,381 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 100 [2021-03-26 00:44:54,381 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 00:44:54,403 INFO L129 PetriNetUnfolder]: 1/15 cut-off events. [2021-03-26 00:44:54,403 INFO L130 PetriNetUnfolder]: For 4/5 co-relation queries the response was YES. [2021-03-26 00:44:54,403 INFO L84 FinitePrefix]: Finished finitePrefix Result has 43 conditions, 15 events. 1/15 cut-off events. For 4/5 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 10 event pairs, 0 based on Foata normal form. 3/17 useless extension candidates. Maximal degree in co-relation 32. Up to 6 conditions per place. [2021-03-26 00:44:54,404 INFO L132 encePairwiseOnDemand]: 95/100 looper letters, 1 selfloop transitions, 5 changer transitions 0/13 dead transitions. [2021-03-26 00:44:54,404 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 24 places, 13 transitions, 64 flow [2021-03-26 00:44:54,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-26 00:44:54,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-26 00:44:54,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 323 transitions. [2021-03-26 00:44:54,405 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8075 [2021-03-26 00:44:54,405 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 323 transitions. [2021-03-26 00:44:54,405 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 323 transitions. [2021-03-26 00:44:54,405 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 00:44:54,405 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 323 transitions. [2021-03-26 00:44:54,406 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 80.75) internal successors, (323), 4 states have internal predecessors, (323), 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 00:44:54,407 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 100.0) internal successors, (500), 5 states have internal predecessors, (500), 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 00:44:54,407 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 100.0) internal successors, (500), 5 states have internal predecessors, (500), 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 00:44:54,407 INFO L185 Difference]: Start difference. First operand has 21 places, 13 transitions, 52 flow. Second operand 4 states and 323 transitions. [2021-03-26 00:44:54,407 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 24 places, 13 transitions, 64 flow [2021-03-26 00:44:54,408 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 22 places, 13 transitions, 57 flow, removed 1 selfloop flow, removed 2 redundant places. [2021-03-26 00:44:54,408 INFO L241 Difference]: Finished difference. Result has 23 places, 13 transitions, 61 flow [2021-03-26 00:44:54,408 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=100, PETRI_DIFFERENCE_MINUEND_FLOW=45, PETRI_DIFFERENCE_MINUEND_PLACES=19, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=13, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=8, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=61, PETRI_PLACES=23, PETRI_TRANSITIONS=13} [2021-03-26 00:44:54,408 INFO L343 CegarLoopForPetriNet]: 22 programPoint places, 1 predicate places. [2021-03-26 00:44:54,408 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 00:44:54,408 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 23 places, 13 transitions, 61 flow [2021-03-26 00:44:54,409 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 23 places, 13 transitions, 61 flow [2021-03-26 00:44:54,409 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 23 places, 13 transitions, 61 flow [2021-03-26 00:44:54,411 INFO L129 PetriNetUnfolder]: 1/15 cut-off events. [2021-03-26 00:44:54,411 INFO L130 PetriNetUnfolder]: For 7/8 co-relation queries the response was YES. [2021-03-26 00:44:54,411 INFO L84 FinitePrefix]: Finished finitePrefix Result has 39 conditions, 15 events. 1/15 cut-off events. For 7/8 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 12 event pairs, 0 based on Foata normal form. 1/15 useless extension candidates. Maximal degree in co-relation 29. Up to 6 conditions per place. [2021-03-26 00:44:54,411 INFO L142 LiptonReduction]: Number of co-enabled transitions 8 [2021-03-26 00:44:54,569 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 00:44:54,569 INFO L156 LiptonReduction]: Total number of compositions: 4 [2021-03-26 00:44:54,569 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 161 [2021-03-26 00:44:54,572 INFO L480 AbstractCegarLoop]: Abstraction has has 21 places, 11 transitions, 58 flow [2021-03-26 00:44:54,572 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 79.75) internal successors, (319), 4 states have internal predecessors, (319), 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 00:44:54,572 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 00:44:54,572 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 00:44:54,572 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-03-26 00:44:54,573 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 00:44:54,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 00:44:54,573 INFO L82 PathProgramCache]: Analyzing trace with hash 62701503, now seen corresponding path program 1 times [2021-03-26 00:44:54,573 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 00:44:54,573 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1218376013] [2021-03-26 00:44:54,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 00:44:54,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 00:44:54,616 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:44:54,617 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 00:44:54,617 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:44:54,617 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:44:54,620 INFO L142 QuantifierPusher]: treesize reduction 3, result has 75.0 percent of original size [2021-03-26 00:44:54,620 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 00:44:54,626 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 00:44:54,626 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1218376013] [2021-03-26 00:44:54,626 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 00:44:54,626 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-26 00:44:54,626 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [63755579] [2021-03-26 00:44:54,626 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-26 00:44:54,627 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 00:44:54,627 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-26 00:44:54,627 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-26 00:44:54,628 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 104 [2021-03-26 00:44:54,628 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 21 places, 11 transitions, 58 flow. Second operand has 4 states, 4 states have (on average 75.25) internal successors, (301), 4 states have internal predecessors, (301), 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 00:44:54,628 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 00:44:54,628 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 104 [2021-03-26 00:44:54,629 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 00:44:54,643 INFO L129 PetriNetUnfolder]: 1/11 cut-off events. [2021-03-26 00:44:54,643 INFO L130 PetriNetUnfolder]: For 24/35 co-relation queries the response was YES. [2021-03-26 00:44:54,644 INFO L84 FinitePrefix]: Finished finitePrefix Result has 40 conditions, 11 events. 1/11 cut-off events. For 24/35 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 8 event pairs, 0 based on Foata normal form. 5/15 useless extension candidates. Maximal degree in co-relation 28. Up to 5 conditions per place. [2021-03-26 00:44:54,644 INFO L132 encePairwiseOnDemand]: 100/104 looper letters, 0 selfloop transitions, 0 changer transitions 10/10 dead transitions. [2021-03-26 00:44:54,644 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 23 places, 10 transitions, 62 flow [2021-03-26 00:44:54,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-26 00:44:54,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-26 00:44:54,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 302 transitions. [2021-03-26 00:44:54,645 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7259615384615384 [2021-03-26 00:44:54,645 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 302 transitions. [2021-03-26 00:44:54,645 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 302 transitions. [2021-03-26 00:44:54,645 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 00:44:54,645 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 302 transitions. [2021-03-26 00:44:54,646 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 75.5) internal successors, (302), 4 states have internal predecessors, (302), 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 00:44:54,648 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 104.0) internal successors, (520), 5 states have internal predecessors, (520), 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 00:44:54,648 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 104.0) internal successors, (520), 5 states have internal predecessors, (520), 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 00:44:54,648 INFO L185 Difference]: Start difference. First operand has 21 places, 11 transitions, 58 flow. Second operand 4 states and 302 transitions. [2021-03-26 00:44:54,648 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 23 places, 10 transitions, 62 flow [2021-03-26 00:44:54,649 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 19 places, 10 transitions, 45 flow, removed 2 selfloop flow, removed 4 redundant places. [2021-03-26 00:44:54,650 INFO L241 Difference]: Finished difference. Result has 19 places, 0 transitions, 0 flow [2021-03-26 00:44:54,650 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=104, PETRI_DIFFERENCE_MINUEND_FLOW=35, PETRI_DIFFERENCE_MINUEND_PLACES=16, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=10, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=10, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=19, PETRI_TRANSITIONS=0} [2021-03-26 00:44:54,650 INFO L343 CegarLoopForPetriNet]: 22 programPoint places, -3 predicate places. [2021-03-26 00:44:54,650 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 00:44:54,650 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 19 places, 0 transitions, 0 flow [2021-03-26 00:44:54,650 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 19 places, 0 transitions, 0 flow [2021-03-26 00:44:54,650 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 0 places, 0 transitions, 0 flow [2021-03-26 00:44:54,650 INFO L129 PetriNetUnfolder]: 0/0 cut-off events. [2021-03-26 00:44:54,650 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 00:44:54,651 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 00:44:54,651 INFO L142 LiptonReduction]: Number of co-enabled transitions 0 [2021-03-26 00:44:54,651 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 00:44:54,651 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 00:44:54,651 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1 [2021-03-26 00:44:54,652 INFO L480 AbstractCegarLoop]: Abstraction has has 0 places, 0 transitions, 0 flow [2021-03-26 00:44:54,652 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 75.25) internal successors, (301), 4 states have internal predecessors, (301), 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 00:44:54,652 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-03-26 00:44:54,655 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.03 12:44:54 BasicIcfg [2021-03-26 00:44:54,655 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-26 00:44:54,655 INFO L168 Benchmark]: Toolchain (without parser) took 3437.72 ms. Allocated memory was 381.7 MB in the beginning and 459.3 MB in the end (delta: 77.6 MB). Free memory was 344.4 MB in the beginning and 376.1 MB in the end (delta: -31.7 MB). Peak memory consumption was 47.1 MB. Max. memory is 16.0 GB. [2021-03-26 00:44:54,657 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 381.7 MB. Free memory is still 362.6 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-03-26 00:44:54,660 INFO L168 Benchmark]: CACSL2BoogieTranslator took 356.94 ms. Allocated memory is still 381.7 MB. Free memory was 344.3 MB in the beginning and 344.3 MB in the end (delta: -42.7 kB). Peak memory consumption was 5.1 MB. Max. memory is 16.0 GB. [2021-03-26 00:44:54,660 INFO L168 Benchmark]: Boogie Procedure Inliner took 37.93 ms. Allocated memory is still 381.7 MB. Free memory was 344.3 MB in the beginning and 342.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-26 00:44:54,660 INFO L168 Benchmark]: Boogie Preprocessor took 15.18 ms. Allocated memory is still 381.7 MB. Free memory was 342.2 MB in the beginning and 341.2 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-26 00:44:54,660 INFO L168 Benchmark]: RCFGBuilder took 274.75 ms. Allocated memory is still 381.7 MB. Free memory was 341.2 MB in the beginning and 319.2 MB in the end (delta: 22.0 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. [2021-03-26 00:44:54,660 INFO L168 Benchmark]: TraceAbstraction took 2748.29 ms. Allocated memory was 381.7 MB in the beginning and 459.3 MB in the end (delta: 77.6 MB). Free memory was 319.2 MB in the beginning and 376.1 MB in the end (delta: -56.9 MB). Peak memory consumption was 22.7 MB. Max. memory is 16.0 GB. [2021-03-26 00:44:54,662 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 381.7 MB. Free memory is still 362.6 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 356.94 ms. Allocated memory is still 381.7 MB. Free memory was 344.3 MB in the beginning and 344.3 MB in the end (delta: -42.7 kB). Peak memory consumption was 5.1 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 37.93 ms. Allocated memory is still 381.7 MB. Free memory was 344.3 MB in the beginning and 342.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 15.18 ms. Allocated memory is still 381.7 MB. Free memory was 342.2 MB in the beginning and 341.2 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.0 GB. * RCFGBuilder took 274.75 ms. Allocated memory is still 381.7 MB. Free memory was 341.2 MB in the beginning and 319.2 MB in the end (delta: 22.0 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. * TraceAbstraction took 2748.29 ms. Allocated memory was 381.7 MB in the beginning and 459.3 MB in the end (delta: 77.6 MB). Free memory was 319.2 MB in the beginning and 376.1 MB in the end (delta: -56.9 MB). Peak memory consumption was 22.7 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1013.0ms, 55 PlacesBefore, 22 PlacesAfterwards, 49 TransitionsBefore, 15 TransitionsAfterwards, 456 CoEnabledTransitionPairs, 5 FixpointIterations, 15 TrivialSequentialCompositions, 18 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 1 ChoiceCompositions, 34 TotalNumberOfCompositions, 608 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 445, positive: 413, positive conditional: 413, positive unconditional: 0, negative: 32, negative conditional: 32, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 348, positive: 330, positive conditional: 0, positive unconditional: 330, negative: 18, negative conditional: 0, negative unconditional: 18, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 348, positive: 330, positive conditional: 0, positive unconditional: 330, negative: 18, negative conditional: 0, negative unconditional: 18, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 348, positive: 330, positive conditional: 0, positive unconditional: 330, negative: 18, negative conditional: 0, negative unconditional: 18, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 18, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 18, negative conditional: 0, negative unconditional: 18, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 111, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 111, negative conditional: 0, negative unconditional: 111, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 445, positive: 83, positive conditional: 83, positive unconditional: 0, negative: 14, negative conditional: 14, negative unconditional: 0, unknown: 348, unknown conditional: 348, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 23, Positive cache size: 18, Positive conditional cache size: 18, Positive unconditional cache size: 0, Negative cache size: 5, Negative conditional cache size: 5, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 604.5ms, 23 PlacesBefore, 20 PlacesAfterwards, 15 TransitionsBefore, 12 TransitionsAfterwards, 64 CoEnabledTransitionPairs, 3 FixpointIterations, 2 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 3 TotalNumberOfCompositions, 160 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 82, positive: 58, positive conditional: 58, positive unconditional: 0, negative: 24, negative conditional: 24, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 22, positive: 16, positive conditional: 3, positive unconditional: 13, negative: 6, negative conditional: 2, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 22, positive: 16, positive conditional: 3, positive unconditional: 13, negative: 6, negative conditional: 2, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 22, positive: 14, positive conditional: 0, positive unconditional: 14, negative: 8, negative conditional: 0, negative unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 8, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 6, negative conditional: 2, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 28, positive: 7, positive conditional: 0, positive unconditional: 7, negative: 21, negative conditional: 7, negative unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 82, positive: 42, positive conditional: 42, positive unconditional: 0, negative: 18, negative conditional: 18, negative unconditional: 0, unknown: 22, unknown conditional: 22, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 33, Positive cache size: 24, Positive conditional cache size: 24, 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: 8.0ms, 24 PlacesBefore, 24 PlacesAfterwards, 16 TransitionsBefore, 16 TransitionsAfterwards, 58 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 55 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 34, positive: 26, positive conditional: 26, 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: 7, positive: 6, positive conditional: 3, positive unconditional: 3, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 7, positive: 6, positive conditional: 3, positive unconditional: 3, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 7, positive: 6, positive conditional: 0, positive unconditional: 6, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 3, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 3, negative conditional: 3, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 34, positive: 20, positive conditional: 20, positive unconditional: 0, negative: 7, negative conditional: 7, negative unconditional: 0, unknown: 7, unknown conditional: 7, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 40, Positive cache size: 30, Positive conditional cache size: 30, 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: 30.6ms, 29 PlacesBefore, 27 PlacesAfterwards, 12 TransitionsBefore, 11 TransitionsAfterwards, 36 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 39 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 26, positive: 17, positive conditional: 17, 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: 8, positive: 6, positive conditional: 1, positive unconditional: 5, 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: 1, positive unconditional: 5, 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: 6, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 6, negative conditional: 0, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 26, positive: 11, positive conditional: 11, positive unconditional: 0, negative: 7, negative conditional: 7, negative unconditional: 0, unknown: 8, unknown conditional: 8, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 24, Positive cache size: 19, Positive conditional cache size: 19, Positive unconditional cache size: 0, Negative cache size: 5, Negative conditional cache size: 5, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 77.5ms, 21 PlacesBefore, 21 PlacesAfterwards, 13 TransitionsBefore, 13 TransitionsAfterwards, 22 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 14 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 14, positive: 10, positive conditional: 10, positive unconditional: 0, negative: 4, negative conditional: 4, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 9, positive: 7, positive conditional: 5, positive unconditional: 2, 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: 9, positive: 7, positive conditional: 5, positive unconditional: 2, 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: 9, positive: 7, positive conditional: 0, positive unconditional: 7, 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: 13, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 13, negative conditional: 0, negative unconditional: 13, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 14, positive: 3, positive conditional: 3, positive unconditional: 0, negative: 2, negative conditional: 2, negative unconditional: 0, unknown: 9, unknown conditional: 9, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 11, Positive cache size: 5, Positive conditional cache size: 5, Positive unconditional cache size: 0, Negative cache size: 6, Negative conditional cache size: 6, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 160.4ms, 23 PlacesBefore, 21 PlacesAfterwards, 13 TransitionsBefore, 11 TransitionsAfterwards, 8 CoEnabledTransitionPairs, 3 FixpointIterations, 4 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 4 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): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.6ms, 19 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): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, 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 3 procedures, 60 locations, 1 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 2.3ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 2661.1ms, OverallIterations: 6, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 173.1ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 1101.0ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 20 SDtfs, 6 SDslu, 5 SDs, 0 SdLazy, 32 SolverSat, 15 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 32.3ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 18 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 40.7ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=67occurred in iteration=2, InterpolantAutomatonStates: 23, 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: 10.1ms SsaConstructionTime, 104.3ms SatisfiabilityAnalysisTime, 238.2ms InterpolantComputationTime, 55 NumberOfCodeBlocks, 55 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 49 ConstructedInterpolants, 0 QuantifiedInterpolants, 166 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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...