/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/thin000_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-d5b4239aa45c8d22a30959944f2ef622f7386a6d-d5b4239 [2021-03-26 00:52:29,319 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-26 00:52:29,321 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-26 00:52:29,344 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-03-26 00:52:29,345 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-03-26 00:52:29,346 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-03-26 00:52:29,347 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-03-26 00:52:29,349 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-03-26 00:52:29,350 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-03-26 00:52:29,351 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-03-26 00:52:29,352 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-03-26 00:52:29,352 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-03-26 00:52:29,353 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-26 00:52:29,354 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-26 00:52:29,354 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-26 00:52:29,355 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-26 00:52:29,356 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-26 00:52:29,357 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-26 00:52:29,358 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-26 00:52:29,359 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-26 00:52:29,361 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-26 00:52:29,361 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-26 00:52:29,366 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-26 00:52:29,367 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-26 00:52:29,369 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-03-26 00:52:29,381 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-26 00:52:29,381 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-26 00:52:29,382 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-26 00:52:29,386 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 00:52:29,420 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-26 00:52:29,420 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-26 00:52:29,423 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-26 00:52:29,423 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-26 00:52:29,423 INFO L138 SettingsManager]: * Use SBE=true [2021-03-26 00:52:29,424 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-26 00:52:29,424 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-26 00:52:29,424 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-26 00:52:29,424 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-26 00:52:29,424 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-26 00:52:29,425 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-26 00:52:29,425 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-26 00:52:29,425 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-26 00:52:29,425 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-26 00:52:29,425 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-26 00:52:29,426 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-26 00:52:29,426 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-26 00:52:29,426 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-26 00:52:29,426 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-26 00:52:29,426 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-26 00:52:29,426 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-26 00:52:29,426 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-26 00:52:29,426 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-26 00:52:29,427 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-26 00:52:29,427 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-26 00:52:29,427 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-26 00:52:29,427 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-26 00:52:29,427 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=SEMANTIC_BASED_MOVER_CHECK_WITH_PREDICATES [2021-03-26 00:52:29,427 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-03-26 00:52:29,427 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-03-26 00:52:29,427 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-26 00:52:29,742 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-26 00:52:29,770 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-26 00:52:29,772 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-26 00:52:29,773 INFO L271 PluginConnector]: Initializing CDTParser... [2021-03-26 00:52:29,774 INFO L275 PluginConnector]: CDTParser initialized [2021-03-26 00:52:29,775 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/thin000_tso.oepc.i [2021-03-26 00:52:29,833 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f1a4ffb11/2bbb2b7701db43eaa0c7103142bf6d0f/FLAGf2dbe2be2 [2021-03-26 00:52:30,400 INFO L306 CDTParser]: Found 1 translation units. [2021-03-26 00:52:30,401 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/thin000_tso.oepc.i [2021-03-26 00:52:30,416 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f1a4ffb11/2bbb2b7701db43eaa0c7103142bf6d0f/FLAGf2dbe2be2 [2021-03-26 00:52:30,838 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f1a4ffb11/2bbb2b7701db43eaa0c7103142bf6d0f [2021-03-26 00:52:30,840 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-26 00:52:30,841 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-03-26 00:52:30,852 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-03-26 00:52:30,853 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-03-26 00:52:30,855 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-03-26 00:52:30,856 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.03 12:52:30" (1/1) ... [2021-03-26 00:52:30,857 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@34a13698 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:52:30, skipping insertion in model container [2021-03-26 00:52:30,857 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.03 12:52:30" (1/1) ... [2021-03-26 00:52:30,863 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-03-26 00:52:30,898 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-03-26 00:52:31,031 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/thin000_tso.oepc.i[950,963] [2021-03-26 00:52:31,225 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-26 00:52:31,233 INFO L203 MainTranslator]: Completed pre-run [2021-03-26 00:52:31,243 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/thin000_tso.oepc.i[950,963] [2021-03-26 00:52:31,274 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-26 00:52:31,322 INFO L208 MainTranslator]: Completed translation [2021-03-26 00:52:31,323 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:52:31 WrapperNode [2021-03-26 00:52:31,323 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-03-26 00:52:31,324 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-26 00:52:31,324 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-26 00:52:31,324 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-26 00:52:31,329 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:52:31" (1/1) ... [2021-03-26 00:52:31,340 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:52:31" (1/1) ... [2021-03-26 00:52:31,355 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-26 00:52:31,355 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-26 00:52:31,356 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-26 00:52:31,356 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-26 00:52:31,362 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:52:31" (1/1) ... [2021-03-26 00:52:31,363 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:52:31" (1/1) ... [2021-03-26 00:52:31,372 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:52:31" (1/1) ... [2021-03-26 00:52:31,373 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:52:31" (1/1) ... [2021-03-26 00:52:31,378 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:52:31" (1/1) ... [2021-03-26 00:52:31,379 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:52:31" (1/1) ... [2021-03-26 00:52:31,380 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:52:31" (1/1) ... [2021-03-26 00:52:31,385 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-26 00:52:31,392 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-26 00:52:31,392 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-26 00:52:31,392 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-26 00:52:31,393 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:52:31" (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 00:52:31,442 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-03-26 00:52:31,442 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-03-26 00:52:31,442 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-03-26 00:52:31,442 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-03-26 00:52:31,442 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-03-26 00:52:31,442 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-03-26 00:52:31,443 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-03-26 00:52:31,443 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-03-26 00:52:31,443 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-03-26 00:52:31,443 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-03-26 00:52:31,443 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-26 00:52:31,443 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-26 00:52:31,444 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 00:52:31,773 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-26 00:52:31,774 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-03-26 00:52:31,775 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.03 12:52:31 BoogieIcfgContainer [2021-03-26 00:52:31,775 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-26 00:52:31,777 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-26 00:52:31,777 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-26 00:52:31,779 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-26 00:52:31,779 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.03 12:52:30" (1/3) ... [2021-03-26 00:52:31,780 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6944faa0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.03 12:52:31, skipping insertion in model container [2021-03-26 00:52:31,780 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:52:31" (2/3) ... [2021-03-26 00:52:31,780 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6944faa0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.03 12:52:31, skipping insertion in model container [2021-03-26 00:52:31,780 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.03 12:52:31" (3/3) ... [2021-03-26 00:52:31,781 INFO L111 eAbstractionObserver]: Analyzing ICFG thin000_tso.oepc.i [2021-03-26 00:52:31,786 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-26 00:52:31,790 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-03-26 00:52:31,790 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-26 00:52:31,818 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:52:31,818 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:52:31,818 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:52:31,818 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:52:31,819 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:52:31,819 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:52:31,819 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:52:31,819 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:52:31,820 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:52:31,820 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:52:31,820 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:52:31,820 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:52:31,821 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:52:31,821 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:52:31,821 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:52:31,821 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:52:31,821 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:52:31,821 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:52:31,821 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:52:31,822 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:52:31,822 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:52:31,823 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:52:31,823 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:52:31,823 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:52:31,825 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:52:31,825 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:52:31,825 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:52:31,826 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:52:31,830 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:52:31,830 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:52:31,831 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:52:31,831 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:52:31,833 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-26 00:52:31,848 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-03-26 00:52:31,875 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-26 00:52:31,876 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-26 00:52:31,876 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-26 00:52:31,876 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-26 00:52:31,876 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-26 00:52:31,877 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-26 00:52:31,877 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-26 00:52:31,877 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-26 00:52:31,888 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 66 places, 61 transitions, 132 flow [2021-03-26 00:52:31,932 INFO L129 PetriNetUnfolder]: 2/59 cut-off events. [2021-03-26 00:52:31,933 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 00:52:31,936 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 00:52:31,936 INFO L82 GeneralOperation]: Start removeDead. Operand has 66 places, 61 transitions, 132 flow [2021-03-26 00:52:31,941 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 55 places, 49 transitions, 104 flow [2021-03-26 00:52:31,942 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 00:52:31,955 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 55 places, 49 transitions, 104 flow [2021-03-26 00:52:31,958 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 55 places, 49 transitions, 104 flow [2021-03-26 00:52:31,959 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 55 places, 49 transitions, 104 flow [2021-03-26 00:52:31,980 INFO L129 PetriNetUnfolder]: 1/49 cut-off events. [2021-03-26 00:52:31,980 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 00:52:31,980 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 00:52:31,982 INFO L142 LiptonReduction]: Number of co-enabled transitions 456 [2021-03-26 00:52:33,202 INFO L154 LiptonReduction]: Checked pairs total: 608 [2021-03-26 00:52:33,202 INFO L156 LiptonReduction]: Total number of compositions: 34 [2021-03-26 00:52:33,210 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1268 [2021-03-26 00:52:33,225 INFO L129 PetriNetUnfolder]: 0/13 cut-off events. [2021-03-26 00:52:33,225 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 00:52:33,225 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 00:52:33,226 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 00:52:33,226 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 00:52:33,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 00:52:33,231 INFO L82 PathProgramCache]: Analyzing trace with hash -1656014901, now seen corresponding path program 1 times [2021-03-26 00:52:33,238 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 00:52:33,239 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1343686202] [2021-03-26 00:52:33,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 00:52:33,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 00:52:33,457 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:52:33,458 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 00:52:33,462 INFO L142 QuantifierPusher]: treesize reduction 3, result has 75.0 percent of original size [2021-03-26 00:52:33,463 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 00:52:33,477 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 00:52:33,477 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1343686202] [2021-03-26 00:52:33,478 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 00:52:33,478 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-26 00:52:33,479 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2086498906] [2021-03-26 00:52:33,488 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-26 00:52:33,488 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 00:52:33,498 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-26 00:52:33,499 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-26 00:52:33,501 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 95 [2021-03-26 00:52:33,505 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 22 places, 15 transitions, 36 flow. Second operand has 3 states, 3 states have (on average 77.66666666666667) internal successors, (233), 3 states have internal predecessors, (233), 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 00:52:33,505 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 00:52:33,505 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 95 [2021-03-26 00:52:33,506 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 00:52:33,526 INFO L129 PetriNetUnfolder]: 3/25 cut-off events. [2021-03-26 00:52:33,526 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 00:52:33,527 INFO L84 FinitePrefix]: Finished finitePrefix Result has 43 conditions, 25 events. 3/25 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 38 event pairs, 1 based on Foata normal form. 1/24 useless extension candidates. Maximal degree in co-relation 32. Up to 10 conditions per place. [2021-03-26 00:52:33,528 INFO L132 encePairwiseOnDemand]: 91/95 looper letters, 3 selfloop transitions, 3 changer transitions 0/17 dead transitions. [2021-03-26 00:52:33,528 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 24 places, 17 transitions, 52 flow [2021-03-26 00:52:33,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-26 00:52:33,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-26 00:52:33,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 238 transitions. [2021-03-26 00:52:33,540 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8350877192982457 [2021-03-26 00:52:33,540 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 238 transitions. [2021-03-26 00:52:33,540 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 238 transitions. [2021-03-26 00:52:33,542 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 00:52:33,545 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 238 transitions. [2021-03-26 00:52:33,551 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 79.33333333333333) internal successors, (238), 3 states have internal predecessors, (238), 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 00:52:33,558 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 00:52:33,558 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 00:52:33,560 INFO L185 Difference]: Start difference. First operand has 22 places, 15 transitions, 36 flow. Second operand 3 states and 238 transitions. [2021-03-26 00:52:33,565 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 24 places, 17 transitions, 52 flow [2021-03-26 00:52:33,567 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 22 places, 17 transitions, 50 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-03-26 00:52:33,569 INFO L241 Difference]: Finished difference. Result has 23 places, 17 transitions, 53 flow [2021-03-26 00:52:33,570 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=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=12, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=53, PETRI_PLACES=23, PETRI_TRANSITIONS=17} [2021-03-26 00:52:33,571 INFO L343 CegarLoopForPetriNet]: 22 programPoint places, 1 predicate places. [2021-03-26 00:52:33,571 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 00:52:33,571 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 23 places, 17 transitions, 53 flow [2021-03-26 00:52:33,572 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 23 places, 17 transitions, 53 flow [2021-03-26 00:52:33,572 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 23 places, 17 transitions, 53 flow [2021-03-26 00:52:33,576 INFO L129 PetriNetUnfolder]: 3/25 cut-off events. [2021-03-26 00:52:33,576 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-03-26 00:52:33,576 INFO L84 FinitePrefix]: Finished finitePrefix Result has 44 conditions, 25 events. 3/25 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 39 event pairs, 1 based on Foata normal form. 0/23 useless extension candidates. Maximal degree in co-relation 34. Up to 10 conditions per place. [2021-03-26 00:52:33,578 INFO L142 LiptonReduction]: Number of co-enabled transitions 68 [2021-03-26 00:52:33,955 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 74 [2021-03-26 00:52:34,158 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 74 [2021-03-26 00:52:34,252 INFO L154 LiptonReduction]: Checked pairs total: 136 [2021-03-26 00:52:34,252 INFO L156 LiptonReduction]: Total number of compositions: 3 [2021-03-26 00:52:34,253 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 682 [2021-03-26 00:52:34,254 INFO L480 AbstractCegarLoop]: Abstraction has has 20 places, 14 transitions, 47 flow [2021-03-26 00:52:34,254 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 77.66666666666667) internal successors, (233), 3 states have internal predecessors, (233), 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 00:52:34,254 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 00:52:34,254 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 00:52:34,255 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-26 00:52:34,255 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 00:52:34,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 00:52:34,255 INFO L82 PathProgramCache]: Analyzing trace with hash 203145301, now seen corresponding path program 1 times [2021-03-26 00:52:34,255 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 00:52:34,256 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [477633803] [2021-03-26 00:52:34,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 00:52:34,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 00:52:34,343 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:52:34,343 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 00:52:34,344 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:52:34,345 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:52:34,350 INFO L142 QuantifierPusher]: treesize reduction 3, result has 75.0 percent of original size [2021-03-26 00:52:34,351 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 00:52:34,357 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 00:52:34,358 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [477633803] [2021-03-26 00:52:34,358 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 00:52:34,358 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-26 00:52:34,358 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [745506489] [2021-03-26 00:52:34,359 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-26 00:52:34,360 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 00:52:34,361 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-26 00:52:34,362 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-26 00:52:34,362 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 98 [2021-03-26 00:52:34,363 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 20 places, 14 transitions, 47 flow. Second operand has 4 states, 4 states have (on average 74.75) internal successors, (299), 4 states have internal predecessors, (299), 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 00:52:34,363 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 00:52:34,363 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 98 [2021-03-26 00:52:34,363 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 00:52:34,396 INFO L129 PetriNetUnfolder]: 4/34 cut-off events. [2021-03-26 00:52:34,396 INFO L130 PetriNetUnfolder]: For 9/12 co-relation queries the response was YES. [2021-03-26 00:52:34,397 INFO L84 FinitePrefix]: Finished finitePrefix Result has 74 conditions, 34 events. 4/34 cut-off events. For 9/12 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 98 event pairs, 0 based on Foata normal form. 3/37 useless extension candidates. Maximal degree in co-relation 64. Up to 12 conditions per place. [2021-03-26 00:52:34,397 INFO L132 encePairwiseOnDemand]: 93/98 looper letters, 4 selfloop transitions, 6 changer transitions 0/17 dead transitions. [2021-03-26 00:52:34,397 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 24 places, 17 transitions, 77 flow [2021-03-26 00:52:34,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-26 00:52:34,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-26 00:52:34,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 381 transitions. [2021-03-26 00:52:34,402 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7775510204081633 [2021-03-26 00:52:34,402 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 381 transitions. [2021-03-26 00:52:34,402 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 381 transitions. [2021-03-26 00:52:34,403 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 00:52:34,403 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 381 transitions. [2021-03-26 00:52:34,404 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 76.2) internal successors, (381), 5 states have internal predecessors, (381), 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 00:52:34,408 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 00:52:34,408 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 00:52:34,409 INFO L185 Difference]: Start difference. First operand has 20 places, 14 transitions, 47 flow. Second operand 5 states and 381 transitions. [2021-03-26 00:52:34,409 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 24 places, 17 transitions, 77 flow [2021-03-26 00:52:34,409 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 23 places, 17 transitions, 74 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-26 00:52:34,410 INFO L241 Difference]: Finished difference. Result has 26 places, 16 transitions, 78 flow [2021-03-26 00:52:34,410 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=98, PETRI_DIFFERENCE_MINUEND_FLOW=44, PETRI_DIFFERENCE_MINUEND_PLACES=19, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=14, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=9, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=78, PETRI_PLACES=26, PETRI_TRANSITIONS=16} [2021-03-26 00:52:34,410 INFO L343 CegarLoopForPetriNet]: 22 programPoint places, 4 predicate places. [2021-03-26 00:52:34,411 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 00:52:34,411 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 26 places, 16 transitions, 78 flow [2021-03-26 00:52:34,412 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 26 places, 16 transitions, 78 flow [2021-03-26 00:52:34,413 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 26 places, 16 transitions, 78 flow [2021-03-26 00:52:34,421 INFO L129 PetriNetUnfolder]: 2/30 cut-off events. [2021-03-26 00:52:34,421 INFO L130 PetriNetUnfolder]: For 18/19 co-relation queries the response was YES. [2021-03-26 00:52:34,421 INFO L84 FinitePrefix]: Finished finitePrefix Result has 76 conditions, 30 events. 2/30 cut-off events. For 18/19 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 83 event pairs, 1 based on Foata normal form. 0/30 useless extension candidates. Maximal degree in co-relation 64. Up to 11 conditions per place. [2021-03-26 00:52:34,422 INFO L142 LiptonReduction]: Number of co-enabled transitions 58 [2021-03-26 00:52:34,433 INFO L154 LiptonReduction]: Checked pairs total: 42 [2021-03-26 00:52:34,433 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 00:52:34,433 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 22 [2021-03-26 00:52:34,435 INFO L480 AbstractCegarLoop]: Abstraction has has 26 places, 16 transitions, 78 flow [2021-03-26 00:52:34,436 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 74.75) internal successors, (299), 4 states have internal predecessors, (299), 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 00:52:34,436 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 00:52:34,436 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-03-26 00:52:34,436 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-26 00:52:34,436 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 00:52:34,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 00:52:34,437 INFO L82 PathProgramCache]: Analyzing trace with hash 77420419, now seen corresponding path program 1 times [2021-03-26 00:52:34,437 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 00:52:34,437 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [695171411] [2021-03-26 00:52:34,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 00:52:34,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 00:52:34,482 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:52:34,482 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:52:34,485 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 00:52:34,485 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [695171411] [2021-03-26 00:52:34,485 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 00:52:34,485 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-03-26 00:52:34,485 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1788965801] [2021-03-26 00:52:34,486 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-26 00:52:34,486 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 00:52:34,486 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-26 00:52:34,486 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-26 00:52:34,487 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 98 [2021-03-26 00:52:34,488 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 26 places, 16 transitions, 78 flow. Second operand has 3 states, 3 states have (on average 82.66666666666667) internal successors, (248), 3 states have internal predecessors, (248), 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 00:52:34,488 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 00:52:34,488 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 98 [2021-03-26 00:52:34,488 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 00:52:34,494 INFO L129 PetriNetUnfolder]: 1/21 cut-off events. [2021-03-26 00:52:34,494 INFO L130 PetriNetUnfolder]: For 18/18 co-relation queries the response was YES. [2021-03-26 00:52:34,495 INFO L84 FinitePrefix]: Finished finitePrefix Result has 60 conditions, 21 events. 1/21 cut-off events. For 18/18 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 42 event pairs, 0 based on Foata normal form. 1/22 useless extension candidates. Maximal degree in co-relation 46. Up to 7 conditions per place. [2021-03-26 00:52:34,495 INFO L132 encePairwiseOnDemand]: 95/98 looper letters, 1 selfloop transitions, 3 changer transitions 2/16 dead transitions. [2021-03-26 00:52:34,495 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 28 places, 16 transitions, 88 flow [2021-03-26 00:52:34,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-26 00:52:34,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-26 00:52:34,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 250 transitions. [2021-03-26 00:52:34,496 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8503401360544217 [2021-03-26 00:52:34,496 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 250 transitions. [2021-03-26 00:52:34,497 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 250 transitions. [2021-03-26 00:52:34,497 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 00:52:34,497 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 250 transitions. [2021-03-26 00:52:34,498 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 83.33333333333333) internal successors, (250), 3 states have internal predecessors, (250), 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 00:52:34,498 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 98.0) internal successors, (392), 4 states have internal predecessors, (392), 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 00:52:34,499 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 98.0) internal successors, (392), 4 states have internal predecessors, (392), 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 00:52:34,499 INFO L185 Difference]: Start difference. First operand has 26 places, 16 transitions, 78 flow. Second operand 3 states and 250 transitions. [2021-03-26 00:52:34,499 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 28 places, 16 transitions, 88 flow [2021-03-26 00:52:34,500 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 27 places, 16 transitions, 86 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-26 00:52:34,500 INFO L241 Difference]: Finished difference. Result has 28 places, 14 transitions, 73 flow [2021-03-26 00:52:34,500 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=98, PETRI_DIFFERENCE_MINUEND_FLOW=76, PETRI_DIFFERENCE_MINUEND_PLACES=25, 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=3, PETRI_FLOW=73, PETRI_PLACES=28, PETRI_TRANSITIONS=14} [2021-03-26 00:52:34,500 INFO L343 CegarLoopForPetriNet]: 22 programPoint places, 6 predicate places. [2021-03-26 00:52:34,501 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 00:52:34,501 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 28 places, 14 transitions, 73 flow [2021-03-26 00:52:34,501 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 28 places, 14 transitions, 73 flow [2021-03-26 00:52:34,501 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 27 places, 14 transitions, 73 flow [2021-03-26 00:52:34,504 INFO L129 PetriNetUnfolder]: 1/18 cut-off events. [2021-03-26 00:52:34,504 INFO L130 PetriNetUnfolder]: For 16/16 co-relation queries the response was YES. [2021-03-26 00:52:34,504 INFO L84 FinitePrefix]: Finished finitePrefix Result has 55 conditions, 18 events. 1/18 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 29 event pairs, 0 based on Foata normal form. 0/18 useless extension candidates. Maximal degree in co-relation 41. Up to 7 conditions per place. [2021-03-26 00:52:34,504 INFO L142 LiptonReduction]: Number of co-enabled transitions 50 [2021-03-26 00:52:34,567 INFO L154 LiptonReduction]: Checked pairs total: 77 [2021-03-26 00:52:34,567 INFO L156 LiptonReduction]: Total number of compositions: 2 [2021-03-26 00:52:34,568 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 67 [2021-03-26 00:52:34,569 INFO L480 AbstractCegarLoop]: Abstraction has has 25 places, 13 transitions, 69 flow [2021-03-26 00:52:34,569 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 82.66666666666667) internal successors, (248), 3 states have internal predecessors, (248), 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 00:52:34,569 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 00:52:34,569 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 00:52:34,569 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-03-26 00:52:34,570 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 00:52:34,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 00:52:34,570 INFO L82 PathProgramCache]: Analyzing trace with hash -1894935557, now seen corresponding path program 1 times [2021-03-26 00:52:34,570 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 00:52:34,572 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [539621435] [2021-03-26 00:52:34,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 00:52:34,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 00:52:34,617 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:52:34,617 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:52:34,620 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:52:34,621 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:52:34,624 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 00:52:34,624 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [539621435] [2021-03-26 00:52:34,624 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 00:52:34,624 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-26 00:52:34,624 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [403820869] [2021-03-26 00:52:34,625 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-26 00:52:34,625 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 00:52:34,625 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-26 00:52:34,625 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-26 00:52:34,626 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 100 [2021-03-26 00:52:34,627 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 25 places, 13 transitions, 69 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 00:52:34,627 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 00:52:34,627 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 100 [2021-03-26 00:52:34,627 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 00:52:34,645 INFO L129 PetriNetUnfolder]: 1/18 cut-off events. [2021-03-26 00:52:34,645 INFO L130 PetriNetUnfolder]: For 36/37 co-relation queries the response was YES. [2021-03-26 00:52:34,645 INFO L84 FinitePrefix]: Finished finitePrefix Result has 60 conditions, 18 events. 1/18 cut-off events. For 36/37 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 29 event pairs, 0 based on Foata normal form. 3/21 useless extension candidates. Maximal degree in co-relation 46. Up to 7 conditions per place. [2021-03-26 00:52:34,646 INFO L132 encePairwiseOnDemand]: 96/100 looper letters, 1 selfloop transitions, 3 changer transitions 3/14 dead transitions. [2021-03-26 00:52:34,646 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 28 places, 14 transitions, 89 flow [2021-03-26 00:52:34,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-26 00:52:34,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-26 00:52:34,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 320 transitions. [2021-03-26 00:52:34,647 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8 [2021-03-26 00:52:34,647 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 320 transitions. [2021-03-26 00:52:34,647 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 320 transitions. [2021-03-26 00:52:34,648 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 00:52:34,648 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 320 transitions. [2021-03-26 00:52:34,649 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 80.0) internal successors, (320), 4 states have internal predecessors, (320), 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 00:52:34,650 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 00:52:34,650 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 00:52:34,650 INFO L185 Difference]: Start difference. First operand has 25 places, 13 transitions, 69 flow. Second operand 4 states and 320 transitions. [2021-03-26 00:52:34,650 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 28 places, 14 transitions, 89 flow [2021-03-26 00:52:34,651 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 23 places, 14 transitions, 69 flow, removed 5 selfloop flow, removed 5 redundant places. [2021-03-26 00:52:34,652 INFO L241 Difference]: Finished difference. Result has 25 places, 11 transitions, 56 flow [2021-03-26 00:52:34,652 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=100, PETRI_DIFFERENCE_MINUEND_FLOW=52, PETRI_DIFFERENCE_MINUEND_PLACES=20, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=13, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=10, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=56, PETRI_PLACES=25, PETRI_TRANSITIONS=11} [2021-03-26 00:52:34,652 INFO L343 CegarLoopForPetriNet]: 22 programPoint places, 3 predicate places. [2021-03-26 00:52:34,652 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 00:52:34,652 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 25 places, 11 transitions, 56 flow [2021-03-26 00:52:34,653 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 25 places, 11 transitions, 56 flow [2021-03-26 00:52:34,653 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 25 places, 11 transitions, 56 flow [2021-03-26 00:52:34,655 INFO L129 PetriNetUnfolder]: 0/11 cut-off events. [2021-03-26 00:52:34,655 INFO L130 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2021-03-26 00:52:34,655 INFO L84 FinitePrefix]: Finished finitePrefix Result has 37 conditions, 11 events. 0/11 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 8 event pairs, 0 based on Foata normal form. 0/11 useless extension candidates. Maximal degree in co-relation 0. Up to 4 conditions per place. [2021-03-26 00:52:34,655 INFO L142 LiptonReduction]: Number of co-enabled transitions 30 [2021-03-26 00:52:34,684 INFO L154 LiptonReduction]: Checked pairs total: 24 [2021-03-26 00:52:34,684 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-26 00:52:34,684 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 32 [2021-03-26 00:52:34,687 INFO L480 AbstractCegarLoop]: Abstraction has has 24 places, 10 transitions, 54 flow [2021-03-26 00:52:34,687 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 00:52:34,687 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 00:52:34,687 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 00:52:34,687 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-03-26 00:52:34,688 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 00:52:34,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 00:52:34,688 INFO L82 PathProgramCache]: Analyzing trace with hash 775873293, now seen corresponding path program 1 times [2021-03-26 00:52:34,688 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 00:52:34,688 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [22880503] [2021-03-26 00:52:34,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 00:52:34,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 00:52:34,750 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:52:34,751 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:52:34,754 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:52:34,754 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:52:34,761 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 00:52:34,761 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [22880503] [2021-03-26 00:52:34,761 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 00:52:34,761 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-26 00:52:34,761 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2016036989] [2021-03-26 00:52:34,761 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-26 00:52:34,762 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 00:52:34,762 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-26 00:52:34,762 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-26 00:52:34,763 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 101 [2021-03-26 00:52:34,764 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 24 places, 10 transitions, 54 flow. Second operand has 4 states, 4 states have (on average 79.0) internal successors, (316), 4 states have internal predecessors, (316), 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 00:52:34,764 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 00:52:34,764 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 101 [2021-03-26 00:52:34,764 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 00:52:34,780 INFO L129 PetriNetUnfolder]: 0/9 cut-off events. [2021-03-26 00:52:34,780 INFO L130 PetriNetUnfolder]: For 12/13 co-relation queries the response was YES. [2021-03-26 00:52:34,780 INFO L84 FinitePrefix]: Finished finitePrefix Result has 34 conditions, 9 events. 0/9 cut-off events. For 12/13 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 4 event pairs, 0 based on Foata normal form. 1/10 useless extension candidates. Maximal degree in co-relation 0. Up to 3 conditions per place. [2021-03-26 00:52:34,780 INFO L132 encePairwiseOnDemand]: 98/101 looper letters, 0 selfloop transitions, 0 changer transitions 9/9 dead transitions. [2021-03-26 00:52:34,780 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 26 places, 9 transitions, 48 flow [2021-03-26 00:52:34,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-26 00:52:34,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-26 00:52:34,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 316 transitions. [2021-03-26 00:52:34,782 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7821782178217822 [2021-03-26 00:52:34,782 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 316 transitions. [2021-03-26 00:52:34,782 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 316 transitions. [2021-03-26 00:52:34,782 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 00:52:34,782 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 316 transitions. [2021-03-26 00:52:34,783 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 79.0) internal successors, (316), 4 states have internal predecessors, (316), 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 00:52:34,787 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 101.0) internal successors, (505), 5 states have internal predecessors, (505), 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 00:52:34,788 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 101.0) internal successors, (505), 5 states have internal predecessors, (505), 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 00:52:34,788 INFO L185 Difference]: Start difference. First operand has 24 places, 10 transitions, 54 flow. Second operand 4 states and 316 transitions. [2021-03-26 00:52:34,788 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 26 places, 9 transitions, 48 flow [2021-03-26 00:52:34,788 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 18 places, 9 transitions, 30 flow, removed 1 selfloop flow, removed 8 redundant places. [2021-03-26 00:52:34,789 INFO L241 Difference]: Finished difference. Result has 18 places, 0 transitions, 0 flow [2021-03-26 00:52:34,789 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=101, PETRI_DIFFERENCE_MINUEND_FLOW=24, PETRI_DIFFERENCE_MINUEND_PLACES=15, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=9, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=9, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=18, PETRI_TRANSITIONS=0} [2021-03-26 00:52:34,789 INFO L343 CegarLoopForPetriNet]: 22 programPoint places, -4 predicate places. [2021-03-26 00:52:34,789 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 00:52:34,789 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 18 places, 0 transitions, 0 flow [2021-03-26 00:52:34,789 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 18 places, 0 transitions, 0 flow [2021-03-26 00:52:34,790 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 0 places, 0 transitions, 0 flow [2021-03-26 00:52:34,790 INFO L129 PetriNetUnfolder]: 0/0 cut-off events. [2021-03-26 00:52:34,790 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 00:52:34,790 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 00:52:34,790 INFO L142 LiptonReduction]: Number of co-enabled transitions 0 [2021-03-26 00:52:34,790 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 00:52:34,790 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 00:52:34,790 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1 [2021-03-26 00:52:34,795 INFO L480 AbstractCegarLoop]: Abstraction has has 0 places, 0 transitions, 0 flow [2021-03-26 00:52:34,796 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 79.0) internal successors, (316), 4 states have internal predecessors, (316), 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 00:52:34,796 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-03-26 00:52:34,799 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.03 12:52:34 BasicIcfg [2021-03-26 00:52:34,799 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-26 00:52:34,801 INFO L168 Benchmark]: Toolchain (without parser) took 3958.67 ms. Allocated memory was 346.0 MB in the beginning and 434.1 MB in the end (delta: 88.1 MB). Free memory was 309.3 MB in the beginning and 337.4 MB in the end (delta: -28.1 MB). Peak memory consumption was 61.8 MB. Max. memory is 16.0 GB. [2021-03-26 00:52:34,801 INFO L168 Benchmark]: CDTParser took 0.48 ms. Allocated memory is still 346.0 MB. Free memory was 327.6 MB in the beginning and 327.4 MB in the end (delta: 136.3 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-26 00:52:34,801 INFO L168 Benchmark]: CACSL2BoogieTranslator took 470.50 ms. Allocated memory is still 346.0 MB. Free memory was 309.1 MB in the beginning and 308.4 MB in the end (delta: 716.5 kB). Peak memory consumption was 9.0 MB. Max. memory is 16.0 GB. [2021-03-26 00:52:34,804 INFO L168 Benchmark]: Boogie Procedure Inliner took 31.31 ms. Allocated memory is still 346.0 MB. Free memory was 308.4 MB in the beginning and 306.9 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-26 00:52:34,804 INFO L168 Benchmark]: Boogie Preprocessor took 29.76 ms. Allocated memory is still 346.0 MB. Free memory was 306.9 MB in the beginning and 305.9 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-26 00:52:34,809 INFO L168 Benchmark]: RCFGBuilder took 383.77 ms. Allocated memory is still 346.0 MB. Free memory was 305.9 MB in the beginning and 283.8 MB in the end (delta: 22.0 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. [2021-03-26 00:52:34,810 INFO L168 Benchmark]: TraceAbstraction took 3022.62 ms. Allocated memory was 346.0 MB in the beginning and 434.1 MB in the end (delta: 88.1 MB). Free memory was 282.8 MB in the beginning and 337.4 MB in the end (delta: -54.6 MB). Peak memory consumption was 35.6 MB. Max. memory is 16.0 GB. [2021-03-26 00:52:34,812 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.48 ms. Allocated memory is still 346.0 MB. Free memory was 327.6 MB in the beginning and 327.4 MB in the end (delta: 136.3 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 470.50 ms. Allocated memory is still 346.0 MB. Free memory was 309.1 MB in the beginning and 308.4 MB in the end (delta: 716.5 kB). Peak memory consumption was 9.0 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 31.31 ms. Allocated memory is still 346.0 MB. Free memory was 308.4 MB in the beginning and 306.9 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 29.76 ms. Allocated memory is still 346.0 MB. Free memory was 306.9 MB in the beginning and 305.9 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.0 GB. * RCFGBuilder took 383.77 ms. Allocated memory is still 346.0 MB. Free memory was 305.9 MB in the beginning and 283.8 MB in the end (delta: 22.0 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. * TraceAbstraction took 3022.62 ms. Allocated memory was 346.0 MB in the beginning and 434.1 MB in the end (delta: 88.1 MB). Free memory was 282.8 MB in the beginning and 337.4 MB in the end (delta: -54.6 MB). Peak memory consumption was 35.6 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1244.4ms, 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: 422, positive: 390, positive conditional: 390, 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: 333, positive: 314, positive conditional: 0, positive unconditional: 314, negative: 19, negative conditional: 0, negative unconditional: 19, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 333, positive: 314, positive conditional: 0, positive unconditional: 314, negative: 19, negative conditional: 0, negative unconditional: 19, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 333, positive: 314, positive conditional: 0, positive unconditional: 314, negative: 19, negative conditional: 0, negative unconditional: 19, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 19, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 19, negative conditional: 0, negative unconditional: 19, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 83, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 83, negative conditional: 0, negative unconditional: 83, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 422, positive: 76, positive conditional: 76, positive unconditional: 0, negative: 13, negative conditional: 13, negative unconditional: 0, unknown: 333, unknown conditional: 333, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 23, Positive cache size: 17, Positive conditional cache size: 17, 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: 680.8ms, 23 PlacesBefore, 20 PlacesAfterwards, 17 TransitionsBefore, 14 TransitionsAfterwards, 68 CoEnabledTransitionPairs, 3 FixpointIterations, 2 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 3 TotalNumberOfCompositions, 136 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 66, positive: 47, positive conditional: 47, positive unconditional: 0, negative: 19, negative conditional: 19, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 26, positive: 19, positive conditional: 2, positive unconditional: 17, negative: 7, negative conditional: 0, negative unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 26, positive: 19, positive conditional: 2, positive unconditional: 17, negative: 7, negative conditional: 0, negative unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 26, positive: 17, positive conditional: 0, positive unconditional: 17, negative: 9, negative conditional: 0, negative unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 9, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 7, negative conditional: 0, negative unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 29, positive: 8, positive conditional: 0, positive unconditional: 8, negative: 21, negative conditional: 0, negative unconditional: 21, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 66, positive: 28, positive conditional: 28, positive unconditional: 0, negative: 12, negative conditional: 12, negative unconditional: 0, unknown: 26, unknown conditional: 26, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 34, Positive cache size: 23, Positive conditional cache size: 23, Positive unconditional cache size: 0, Negative cache size: 11, Negative conditional cache size: 11, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 21.3ms, 26 PlacesBefore, 26 PlacesAfterwards, 16 TransitionsBefore, 16 TransitionsAfterwards, 58 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 42 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 24, positive: 18, positive conditional: 18, positive unconditional: 0, negative: 6, negative conditional: 6, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 8, positive: 6, positive conditional: 5, positive unconditional: 1, negative: 2, negative conditional: 2, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 8, positive: 6, positive conditional: 5, positive unconditional: 1, negative: 2, negative conditional: 2, negative unconditional: 0, 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: 2, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 8, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 8, negative conditional: 8, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 24, positive: 12, positive conditional: 12, positive unconditional: 0, negative: 4, negative conditional: 4, negative unconditional: 0, unknown: 8, unknown conditional: 8, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 42, Positive cache size: 29, Positive conditional cache size: 29, Positive unconditional cache size: 0, Negative cache size: 13, Negative conditional cache size: 13, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 66.4ms, 28 PlacesBefore, 25 PlacesAfterwards, 14 TransitionsBefore, 13 TransitionsAfterwards, 50 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 2 ConcurrentYvCompositions, 0 ChoiceCompositions, 2 TotalNumberOfCompositions, 77 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 51, positive: 40, positive conditional: 40, positive unconditional: 0, negative: 11, negative conditional: 11, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 12, positive: 10, positive conditional: 6, positive unconditional: 4, negative: 2, negative conditional: 2, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 12, positive: 10, positive conditional: 6, positive unconditional: 4, negative: 2, negative conditional: 2, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 12, positive: 10, positive conditional: 0, positive unconditional: 10, 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: 2, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 10, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 10, negative conditional: 10, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 51, positive: 30, positive conditional: 30, positive unconditional: 0, negative: 9, negative conditional: 9, negative unconditional: 0, unknown: 12, unknown conditional: 12, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 29, Positive cache size: 24, Positive conditional cache size: 24, 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: 31.8ms, 25 PlacesBefore, 24 PlacesAfterwards, 11 TransitionsBefore, 10 TransitionsAfterwards, 30 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 24 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 17, positive: 12, positive conditional: 12, positive unconditional: 0, negative: 5, negative conditional: 5, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 6, positive: 6, positive conditional: 4, positive unconditional: 2, 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: 6, positive: 6, positive conditional: 4, positive unconditional: 2, 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: 6, positive: 6, positive conditional: 0, positive unconditional: 6, 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: 17, positive: 6, positive conditional: 6, positive unconditional: 0, negative: 5, negative conditional: 5, negative unconditional: 0, unknown: 6, unknown conditional: 6, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 14, Positive cache size: 12, Positive conditional cache size: 12, Positive unconditional cache size: 0, Negative cache size: 2, Negative conditional cache size: 2, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.9ms, 18 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): 14, Positive cache size: 12, Positive conditional cache size: 12, Positive unconditional cache size: 0, Negative cache size: 2, Negative conditional cache size: 2, 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: 5.8ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 2924.9ms, OverallIterations: 5, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 192.3ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 1341.3ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 18 SDtfs, 5 SDslu, 3 SDs, 0 SdLazy, 21 SolverSat, 11 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 28.4ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 55.2ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=78occurred in iteration=2, InterpolantAutomatonStates: 19, 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: 25.7ms SsaConstructionTime, 122.6ms SatisfiabilityAnalysisTime, 264.9ms InterpolantComputationTime, 43 NumberOfCodeBlocks, 43 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 38 ConstructedInterpolants, 0 QuantifiedInterpolants, 158 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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...