/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-SemanticLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe011_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-d5b4239aa45c8d22a30959944f2ef622f7386a6d-d5b4239 [2021-03-24 19:51:48,788 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-24 19:51:48,790 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-24 19:51:48,827 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-03-24 19:51:48,827 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-03-24 19:51:48,829 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-03-24 19:51:48,832 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-03-24 19:51:48,837 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-03-24 19:51:48,839 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-03-24 19:51:48,843 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-03-24 19:51:48,844 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-03-24 19:51:48,845 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-03-24 19:51:48,846 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-24 19:51:48,848 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-24 19:51:48,849 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-24 19:51:48,850 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-24 19:51:48,852 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-24 19:51:48,853 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-24 19:51:48,856 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-24 19:51:48,863 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-24 19:51:48,865 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-24 19:51:48,868 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-24 19:51:48,869 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-24 19:51:48,871 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-24 19:51:48,877 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-03-24 19:51:48,885 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-24 19:51:48,886 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-24 19:51:48,886 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-24 19:51:48,887 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-SemanticLbe.epf [2021-03-24 19:51:48,921 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-24 19:51:48,922 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-24 19:51:48,925 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-24 19:51:48,925 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-24 19:51:48,925 INFO L138 SettingsManager]: * Use SBE=true [2021-03-24 19:51:48,925 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-24 19:51:48,926 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-24 19:51:48,926 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-24 19:51:48,926 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-24 19:51:48,926 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-24 19:51:48,927 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-24 19:51:48,927 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-24 19:51:48,927 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-24 19:51:48,927 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-24 19:51:48,928 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-24 19:51:48,928 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-24 19:51:48,928 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-24 19:51:48,928 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-24 19:51:48,928 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-24 19:51:48,928 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-24 19:51:48,929 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-24 19:51:48,929 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-24 19:51:48,929 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-24 19:51:48,929 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-24 19:51:48,929 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-24 19:51:48,929 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-24 19:51:48,929 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-24 19:51:48,930 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-03-24 19:51:48,930 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-24 19:51:49,270 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-24 19:51:49,292 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-24 19:51:49,294 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-24 19:51:49,295 INFO L271 PluginConnector]: Initializing CDTParser... [2021-03-24 19:51:49,296 INFO L275 PluginConnector]: CDTParser initialized [2021-03-24 19:51:49,297 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe011_tso.oepc.i [2021-03-24 19:51:49,360 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6046eb213/5a83db5589334e19b75d5d7b83d393a9/FLAG5e65076ac [2021-03-24 19:51:49,808 INFO L306 CDTParser]: Found 1 translation units. [2021-03-24 19:51:49,810 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe011_tso.oepc.i [2021-03-24 19:51:49,829 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6046eb213/5a83db5589334e19b75d5d7b83d393a9/FLAG5e65076ac [2021-03-24 19:51:50,327 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6046eb213/5a83db5589334e19b75d5d7b83d393a9 [2021-03-24 19:51:50,329 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-24 19:51:50,330 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-03-24 19:51:50,331 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-03-24 19:51:50,331 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-03-24 19:51:50,334 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-03-24 19:51:50,335 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.03 07:51:50" (1/1) ... [2021-03-24 19:51:50,335 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@713ae5f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 07:51:50, skipping insertion in model container [2021-03-24 19:51:50,336 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.03 07:51:50" (1/1) ... [2021-03-24 19:51:50,341 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-03-24 19:51:50,369 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-03-24 19:51:50,522 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/safe011_tso.oepc.i[950,963] [2021-03-24 19:51:50,709 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-24 19:51:50,715 INFO L203 MainTranslator]: Completed pre-run [2021-03-24 19:51:50,726 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/safe011_tso.oepc.i[950,963] [2021-03-24 19:51:50,766 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-24 19:51:50,837 INFO L208 MainTranslator]: Completed translation [2021-03-24 19:51:50,837 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 07:51:50 WrapperNode [2021-03-24 19:51:50,837 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-03-24 19:51:50,838 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-24 19:51:50,838 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-24 19:51:50,840 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-24 19:51:50,846 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 07:51:50" (1/1) ... [2021-03-24 19:51:50,876 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 07:51:50" (1/1) ... [2021-03-24 19:51:50,895 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-24 19:51:50,896 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-24 19:51:50,896 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-24 19:51:50,896 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-24 19:51:50,903 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 07:51:50" (1/1) ... [2021-03-24 19:51:50,903 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 07:51:50" (1/1) ... [2021-03-24 19:51:50,913 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 07:51:50" (1/1) ... [2021-03-24 19:51:50,913 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 07:51:50" (1/1) ... [2021-03-24 19:51:50,922 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 07:51:50" (1/1) ... [2021-03-24 19:51:50,924 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 07:51:50" (1/1) ... [2021-03-24 19:51:50,925 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 07:51:50" (1/1) ... [2021-03-24 19:51:50,927 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-24 19:51:50,928 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-24 19:51:50,928 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-24 19:51:50,928 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-24 19:51:50,928 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 07:51:50" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-24 19:51:51,000 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-03-24 19:51:51,001 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-03-24 19:51:51,001 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-03-24 19:51:51,001 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-03-24 19:51:51,002 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-03-24 19:51:51,002 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-03-24 19:51:51,002 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-03-24 19:51:51,002 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-03-24 19:51:51,003 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-03-24 19:51:51,003 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-03-24 19:51:51,003 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-03-24 19:51:51,003 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-03-24 19:51:51,003 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-24 19:51:51,003 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-24 19:51:51,005 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-03-24 19:51:51,380 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-24 19:51:51,380 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-03-24 19:51:51,382 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.03 07:51:51 BoogieIcfgContainer [2021-03-24 19:51:51,382 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-24 19:51:51,384 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-24 19:51:51,384 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-24 19:51:51,386 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-24 19:51:51,387 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.03 07:51:50" (1/3) ... [2021-03-24 19:51:51,387 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44840a99 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.03 07:51:51, skipping insertion in model container [2021-03-24 19:51:51,387 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 07:51:50" (2/3) ... [2021-03-24 19:51:51,388 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44840a99 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.03 07:51:51, skipping insertion in model container [2021-03-24 19:51:51,388 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.03 07:51:51" (3/3) ... [2021-03-24 19:51:51,389 INFO L111 eAbstractionObserver]: Analyzing ICFG safe011_tso.oepc.i [2021-03-24 19:51:51,394 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-24 19:51:51,398 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-03-24 19:51:51,399 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-24 19:51:51,422 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:51:51,423 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:51:51,423 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:51:51,423 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:51:51,423 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:51:51,423 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:51:51,423 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:51:51,423 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:51:51,424 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:51:51,424 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:51:51,424 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:51:51,424 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:51:51,425 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:51:51,425 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:51:51,425 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:51:51,425 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:51:51,425 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:51:51,425 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:51:51,425 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:51:51,425 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:51:51,426 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:51:51,426 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:51:51,426 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:51:51,426 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:51:51,427 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:51:51,427 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:51:51,427 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:51:51,427 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:51:51,427 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:51:51,427 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:51:51,427 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:51:51,428 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:51:51,428 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:51:51,428 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:51:51,428 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:51:51,428 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:51:51,430 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:51:51,430 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:51:51,431 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:51:51,431 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:51:51,434 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:51:51,435 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:51:51,435 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:51:51,435 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:51:51,437 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:51:51,437 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:51:51,437 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:51:51,437 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:51:51,439 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-24 19:51:51,454 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-03-24 19:51:51,482 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-24 19:51:51,482 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-24 19:51:51,482 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-24 19:51:51,482 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-24 19:51:51,482 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-24 19:51:51,483 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-24 19:51:51,483 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-24 19:51:51,483 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-24 19:51:51,495 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 82 places, 74 transitions, 163 flow [2021-03-24 19:51:51,547 INFO L129 PetriNetUnfolder]: 2/71 cut-off events. [2021-03-24 19:51:51,548 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-24 19:51:51,551 INFO L84 FinitePrefix]: Finished finitePrefix Result has 81 conditions, 71 events. 2/71 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 57 event pairs, 0 based on Foata normal form. 0/68 useless extension candidates. Maximal degree in co-relation 56. Up to 2 conditions per place. [2021-03-24 19:51:51,551 INFO L82 GeneralOperation]: Start removeDead. Operand has 82 places, 74 transitions, 163 flow [2021-03-24 19:51:51,565 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 68 places, 59 transitions, 127 flow [2021-03-24 19:51:51,566 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-24 19:51:51,588 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 68 places, 59 transitions, 127 flow [2021-03-24 19:51:51,593 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 68 places, 59 transitions, 127 flow [2021-03-24 19:51:51,595 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 68 places, 59 transitions, 127 flow [2021-03-24 19:51:51,620 INFO L129 PetriNetUnfolder]: 1/59 cut-off events. [2021-03-24 19:51:51,620 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-24 19:51:51,621 INFO L84 FinitePrefix]: Finished finitePrefix Result has 69 conditions, 59 events. 1/59 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 45 event pairs, 0 based on Foata normal form. 0/58 useless extension candidates. Maximal degree in co-relation 44. Up to 2 conditions per place. [2021-03-24 19:51:51,624 INFO L142 LiptonReduction]: Number of co-enabled transitions 864 [2021-03-24 19:51:52,848 INFO L154 LiptonReduction]: Checked pairs total: 996 [2021-03-24 19:51:52,848 INFO L156 LiptonReduction]: Total number of compositions: 37 [2021-03-24 19:51:52,850 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1285 [2021-03-24 19:51:52,863 INFO L129 PetriNetUnfolder]: 0/21 cut-off events. [2021-03-24 19:51:52,863 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-24 19:51:52,864 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 19:51:52,865 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 19:51:52,865 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 19:51:52,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 19:51:52,870 INFO L82 PathProgramCache]: Analyzing trace with hash -397059577, now seen corresponding path program 1 times [2021-03-24 19:51:52,877 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 19:51:52,878 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [958131545] [2021-03-24 19:51:52,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 19:51:53,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 19:51:53,111 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:51:53,112 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 19:51:53,113 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:51:53,113 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 19:51:53,120 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 19:51:53,121 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [958131545] [2021-03-24 19:51:53,122 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 19:51:53,122 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-24 19:51:53,123 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [949774656] [2021-03-24 19:51:53,130 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-24 19:51:53,131 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 19:51:53,140 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-24 19:51:53,142 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-24 19:51:53,144 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 97 out of 111 [2021-03-24 19:51:53,149 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 22 transitions, 53 flow. Second operand has 3 states, 3 states have (on average 97.66666666666667) internal successors, (293), 3 states have internal predecessors, (293), 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) [2021-03-24 19:51:53,151 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 19:51:53,151 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 97 of 111 [2021-03-24 19:51:53,152 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 19:51:53,174 INFO L129 PetriNetUnfolder]: 3/32 cut-off events. [2021-03-24 19:51:53,179 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-24 19:51:53,180 INFO L84 FinitePrefix]: Finished finitePrefix Result has 53 conditions, 32 events. 3/32 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 45 event pairs, 1 based on Foata normal form. 1/31 useless extension candidates. Maximal degree in co-relation 40. Up to 10 conditions per place. [2021-03-24 19:51:53,181 INFO L132 encePairwiseOnDemand]: 107/111 looper letters, 3 selfloop transitions, 3 changer transitions 0/24 dead transitions. [2021-03-24 19:51:53,181 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 24 transitions, 69 flow [2021-03-24 19:51:53,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-24 19:51:53,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-24 19:51:53,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 298 transitions. [2021-03-24 19:51:53,199 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8948948948948949 [2021-03-24 19:51:53,199 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 298 transitions. [2021-03-24 19:51:53,199 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 298 transitions. [2021-03-24 19:51:53,202 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 19:51:53,204 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 298 transitions. [2021-03-24 19:51:53,209 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 99.33333333333333) internal successors, (298), 3 states have internal predecessors, (298), 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) [2021-03-24 19:51:53,215 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 111.0) internal successors, (444), 4 states have internal predecessors, (444), 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) [2021-03-24 19:51:53,215 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 111.0) internal successors, (444), 4 states have internal predecessors, (444), 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) [2021-03-24 19:51:53,217 INFO L185 Difference]: Start difference. First operand has 32 places, 22 transitions, 53 flow. Second operand 3 states and 298 transitions. [2021-03-24 19:51:53,217 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 24 transitions, 69 flow [2021-03-24 19:51:53,219 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 24 transitions, 66 flow, removed 0 selfloop flow, removed 3 redundant places. [2021-03-24 19:51:53,220 INFO L241 Difference]: Finished difference. Result has 32 places, 24 transitions, 69 flow [2021-03-24 19:51:53,222 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=50, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=69, PETRI_PLACES=32, PETRI_TRANSITIONS=24} [2021-03-24 19:51:53,222 INFO L343 CegarLoopForPetriNet]: 32 programPoint places, 0 predicate places. [2021-03-24 19:51:53,223 INFO L480 AbstractCegarLoop]: Abstraction has has 32 places, 24 transitions, 69 flow [2021-03-24 19:51:53,223 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 97.66666666666667) internal successors, (293), 3 states have internal predecessors, (293), 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) [2021-03-24 19:51:53,223 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 19:51:53,223 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 19:51:53,223 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-24 19:51:53,223 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 19:51:53,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 19:51:53,224 INFO L82 PathProgramCache]: Analyzing trace with hash 576054563, now seen corresponding path program 1 times [2021-03-24 19:51:53,224 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 19:51:53,225 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1975413821] [2021-03-24 19:51:53,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 19:51:53,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 19:51:53,292 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:51:53,293 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 19:51:53,293 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:51:53,294 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 19:51:53,296 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 19:51:53,297 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1975413821] [2021-03-24 19:51:53,297 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 19:51:53,297 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-24 19:51:53,297 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1885271587] [2021-03-24 19:51:53,298 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-24 19:51:53,298 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 19:51:53,298 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-24 19:51:53,298 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-24 19:51:53,299 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 97 out of 111 [2021-03-24 19:51:53,300 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 24 transitions, 69 flow. Second operand has 3 states, 3 states have (on average 97.66666666666667) internal successors, (293), 3 states have internal predecessors, (293), 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) [2021-03-24 19:51:53,300 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 19:51:53,300 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 97 of 111 [2021-03-24 19:51:53,300 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 19:51:53,311 INFO L129 PetriNetUnfolder]: 7/44 cut-off events. [2021-03-24 19:51:53,311 INFO L130 PetriNetUnfolder]: For 11/15 co-relation queries the response was YES. [2021-03-24 19:51:53,312 INFO L84 FinitePrefix]: Finished finitePrefix Result has 85 conditions, 44 events. 7/44 cut-off events. For 11/15 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 106 event pairs, 3 based on Foata normal form. 1/39 useless extension candidates. Maximal degree in co-relation 72. Up to 15 conditions per place. [2021-03-24 19:51:53,312 INFO L132 encePairwiseOnDemand]: 107/111 looper letters, 3 selfloop transitions, 3 changer transitions 0/26 dead transitions. [2021-03-24 19:51:53,312 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 26 transitions, 85 flow [2021-03-24 19:51:53,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-24 19:51:53,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-24 19:51:53,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 298 transitions. [2021-03-24 19:51:53,314 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8948948948948949 [2021-03-24 19:51:53,314 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 298 transitions. [2021-03-24 19:51:53,314 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 298 transitions. [2021-03-24 19:51:53,314 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 19:51:53,314 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 298 transitions. [2021-03-24 19:51:53,315 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 99.33333333333333) internal successors, (298), 3 states have internal predecessors, (298), 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) [2021-03-24 19:51:53,316 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 111.0) internal successors, (444), 4 states have internal predecessors, (444), 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) [2021-03-24 19:51:53,316 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 111.0) internal successors, (444), 4 states have internal predecessors, (444), 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) [2021-03-24 19:51:53,316 INFO L185 Difference]: Start difference. First operand has 32 places, 24 transitions, 69 flow. Second operand 3 states and 298 transitions. [2021-03-24 19:51:53,316 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 26 transitions, 85 flow [2021-03-24 19:51:53,317 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 26 transitions, 82 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-24 19:51:53,317 INFO L241 Difference]: Finished difference. Result has 34 places, 26 transitions, 85 flow [2021-03-24 19:51:53,318 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=66, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=85, PETRI_PLACES=34, PETRI_TRANSITIONS=26} [2021-03-24 19:51:53,318 INFO L343 CegarLoopForPetriNet]: 32 programPoint places, 2 predicate places. [2021-03-24 19:51:53,318 INFO L480 AbstractCegarLoop]: Abstraction has has 34 places, 26 transitions, 85 flow [2021-03-24 19:51:53,318 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 97.66666666666667) internal successors, (293), 3 states have internal predecessors, (293), 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) [2021-03-24 19:51:53,319 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 19:51:53,319 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 19:51:53,319 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-24 19:51:53,319 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 19:51:53,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 19:51:53,319 INFO L82 PathProgramCache]: Analyzing trace with hash 1636757673, now seen corresponding path program 1 times [2021-03-24 19:51:53,319 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 19:51:53,320 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [665416238] [2021-03-24 19:51:53,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 19:51:53,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 19:51:53,358 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:51:53,358 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 19:51:53,359 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:51:53,359 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 19:51:53,366 INFO L142 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-03-24 19:51:53,367 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 19:51:53,374 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 19:51:53,374 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [665416238] [2021-03-24 19:51:53,374 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 19:51:53,374 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-24 19:51:53,374 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1438193908] [2021-03-24 19:51:53,375 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-24 19:51:53,375 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 19:51:53,375 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-24 19:51:53,375 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-03-24 19:51:53,376 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 87 out of 111 [2021-03-24 19:51:53,377 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 26 transitions, 85 flow. Second operand has 4 states, 4 states have (on average 88.0) internal successors, (352), 4 states have internal predecessors, (352), 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) [2021-03-24 19:51:53,377 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 19:51:53,377 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 87 of 111 [2021-03-24 19:51:53,377 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 19:51:53,404 INFO L129 PetriNetUnfolder]: 23/93 cut-off events. [2021-03-24 19:51:53,404 INFO L130 PetriNetUnfolder]: For 65/169 co-relation queries the response was YES. [2021-03-24 19:51:53,404 INFO L84 FinitePrefix]: Finished finitePrefix Result has 225 conditions, 93 events. 23/93 cut-off events. For 65/169 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 339 event pairs, 2 based on Foata normal form. 6/93 useless extension candidates. Maximal degree in co-relation 210. Up to 31 conditions per place. [2021-03-24 19:51:53,405 INFO L132 encePairwiseOnDemand]: 104/111 looper letters, 13 selfloop transitions, 9 changer transitions 0/37 dead transitions. [2021-03-24 19:51:53,405 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 37 transitions, 174 flow [2021-03-24 19:51:53,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-24 19:51:53,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-24 19:51:53,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 364 transitions. [2021-03-24 19:51:53,407 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8198198198198198 [2021-03-24 19:51:53,407 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 364 transitions. [2021-03-24 19:51:53,407 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 364 transitions. [2021-03-24 19:51:53,407 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 19:51:53,407 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 364 transitions. [2021-03-24 19:51:53,408 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 91.0) internal successors, (364), 4 states have internal predecessors, (364), 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) [2021-03-24 19:51:53,409 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 111.0) internal successors, (555), 5 states have internal predecessors, (555), 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) [2021-03-24 19:51:53,410 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 111.0) internal successors, (555), 5 states have internal predecessors, (555), 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) [2021-03-24 19:51:53,410 INFO L185 Difference]: Start difference. First operand has 34 places, 26 transitions, 85 flow. Second operand 4 states and 364 transitions. [2021-03-24 19:51:53,410 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 37 transitions, 174 flow [2021-03-24 19:51:53,411 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 37 transitions, 170 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-24 19:51:53,411 INFO L241 Difference]: Finished difference. Result has 39 places, 32 transitions, 158 flow [2021-03-24 19:51:53,412 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=82, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=158, PETRI_PLACES=39, PETRI_TRANSITIONS=32} [2021-03-24 19:51:53,412 INFO L343 CegarLoopForPetriNet]: 32 programPoint places, 7 predicate places. [2021-03-24 19:51:53,412 INFO L480 AbstractCegarLoop]: Abstraction has has 39 places, 32 transitions, 158 flow [2021-03-24 19:51:53,412 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 88.0) internal successors, (352), 4 states have internal predecessors, (352), 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) [2021-03-24 19:51:53,412 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 19:51:53,412 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 19:51:53,413 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-03-24 19:51:53,413 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 19:51:53,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 19:51:53,413 INFO L82 PathProgramCache]: Analyzing trace with hash -789808349, now seen corresponding path program 1 times [2021-03-24 19:51:53,413 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 19:51:53,413 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [63153462] [2021-03-24 19:51:53,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 19:51:53,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 19:51:53,444 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:51:53,445 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 19:51:53,445 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:51:53,446 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 19:51:53,448 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 19:51:53,448 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [63153462] [2021-03-24 19:51:53,449 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 19:51:53,449 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-24 19:51:53,449 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1624485331] [2021-03-24 19:51:53,449 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-24 19:51:53,449 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 19:51:53,450 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-24 19:51:53,450 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-24 19:51:53,451 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 97 out of 111 [2021-03-24 19:51:53,451 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 32 transitions, 158 flow. Second operand has 3 states, 3 states have (on average 98.0) internal successors, (294), 3 states have internal predecessors, (294), 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) [2021-03-24 19:51:53,452 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 19:51:53,452 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 97 of 111 [2021-03-24 19:51:53,452 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 19:51:53,469 INFO L129 PetriNetUnfolder]: 14/84 cut-off events. [2021-03-24 19:51:53,469 INFO L130 PetriNetUnfolder]: For 149/275 co-relation queries the response was YES. [2021-03-24 19:51:53,470 INFO L84 FinitePrefix]: Finished finitePrefix Result has 249 conditions, 84 events. 14/84 cut-off events. For 149/275 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 341 event pairs, 2 based on Foata normal form. 5/83 useless extension candidates. Maximal degree in co-relation 230. Up to 25 conditions per place. [2021-03-24 19:51:53,470 INFO L132 encePairwiseOnDemand]: 108/111 looper letters, 4 selfloop transitions, 6 changer transitions 0/32 dead transitions. [2021-03-24 19:51:53,470 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 32 transitions, 178 flow [2021-03-24 19:51:53,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-24 19:51:53,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-24 19:51:53,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 297 transitions. [2021-03-24 19:51:53,472 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8918918918918919 [2021-03-24 19:51:53,472 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 297 transitions. [2021-03-24 19:51:53,472 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 297 transitions. [2021-03-24 19:51:53,472 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 19:51:53,472 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 297 transitions. [2021-03-24 19:51:53,473 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 99.0) internal successors, (297), 3 states have internal predecessors, (297), 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) [2021-03-24 19:51:53,474 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 111.0) internal successors, (444), 4 states have internal predecessors, (444), 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) [2021-03-24 19:51:53,474 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 111.0) internal successors, (444), 4 states have internal predecessors, (444), 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) [2021-03-24 19:51:53,474 INFO L185 Difference]: Start difference. First operand has 39 places, 32 transitions, 158 flow. Second operand 3 states and 297 transitions. [2021-03-24 19:51:53,475 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 32 transitions, 178 flow [2021-03-24 19:51:53,476 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 32 transitions, 176 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-24 19:51:53,477 INFO L241 Difference]: Finished difference. Result has 41 places, 32 transitions, 176 flow [2021-03-24 19:51:53,477 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=156, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=176, PETRI_PLACES=41, PETRI_TRANSITIONS=32} [2021-03-24 19:51:53,477 INFO L343 CegarLoopForPetriNet]: 32 programPoint places, 9 predicate places. [2021-03-24 19:51:53,477 INFO L480 AbstractCegarLoop]: Abstraction has has 41 places, 32 transitions, 176 flow [2021-03-24 19:51:53,478 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 98.0) internal successors, (294), 3 states have internal predecessors, (294), 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) [2021-03-24 19:51:53,478 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 19:51:53,478 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 19:51:53,478 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-03-24 19:51:53,478 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 19:51:53,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 19:51:53,478 INFO L82 PathProgramCache]: Analyzing trace with hash -1453898721, now seen corresponding path program 1 times [2021-03-24 19:51:53,479 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 19:51:53,479 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1460960457] [2021-03-24 19:51:53,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 19:51:53,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 19:51:53,518 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:51:53,519 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 19:51:53,520 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:51:53,520 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 19:51:53,524 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:51:53,524 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 19:51:53,529 INFO L142 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-03-24 19:51:53,530 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 19:51:53,537 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 19:51:53,538 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1460960457] [2021-03-24 19:51:53,538 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 19:51:53,538 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-24 19:51:53,538 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2114913085] [2021-03-24 19:51:53,538 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-24 19:51:53,538 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 19:51:53,539 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-24 19:51:53,539 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-03-24 19:51:53,540 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 111 [2021-03-24 19:51:53,541 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 32 transitions, 176 flow. Second operand has 5 states, 5 states have (on average 86.2) internal successors, (431), 5 states have internal predecessors, (431), 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) [2021-03-24 19:51:53,541 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 19:51:53,541 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 111 [2021-03-24 19:51:53,541 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 19:51:53,591 INFO L129 PetriNetUnfolder]: 35/142 cut-off events. [2021-03-24 19:51:53,591 INFO L130 PetriNetUnfolder]: For 453/783 co-relation queries the response was YES. [2021-03-24 19:51:53,593 INFO L84 FinitePrefix]: Finished finitePrefix Result has 474 conditions, 142 events. 35/142 cut-off events. For 453/783 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 705 event pairs, 8 based on Foata normal form. 11/148 useless extension candidates. Maximal degree in co-relation 454. Up to 43 conditions per place. [2021-03-24 19:51:53,594 INFO L132 encePairwiseOnDemand]: 104/111 looper letters, 9 selfloop transitions, 7 changer transitions 18/48 dead transitions. [2021-03-24 19:51:53,594 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 48 transitions, 363 flow [2021-03-24 19:51:53,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-24 19:51:53,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-24 19:51:53,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 445 transitions. [2021-03-24 19:51:53,596 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8018018018018018 [2021-03-24 19:51:53,599 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 445 transitions. [2021-03-24 19:51:53,599 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 445 transitions. [2021-03-24 19:51:53,599 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 19:51:53,599 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 445 transitions. [2021-03-24 19:51:53,600 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 89.0) internal successors, (445), 5 states have internal predecessors, (445), 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) [2021-03-24 19:51:53,602 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 111.0) internal successors, (666), 6 states have internal predecessors, (666), 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) [2021-03-24 19:51:53,602 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 111.0) internal successors, (666), 6 states have internal predecessors, (666), 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) [2021-03-24 19:51:53,602 INFO L185 Difference]: Start difference. First operand has 41 places, 32 transitions, 176 flow. Second operand 5 states and 445 transitions. [2021-03-24 19:51:53,602 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 48 transitions, 363 flow [2021-03-24 19:51:53,609 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 48 transitions, 349 flow, removed 2 selfloop flow, removed 1 redundant places. [2021-03-24 19:51:53,611 INFO L241 Difference]: Finished difference. Result has 46 places, 28 transitions, 156 flow [2021-03-24 19:51:53,611 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=166, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=156, PETRI_PLACES=46, PETRI_TRANSITIONS=28} [2021-03-24 19:51:53,611 INFO L343 CegarLoopForPetriNet]: 32 programPoint places, 14 predicate places. [2021-03-24 19:51:53,611 INFO L480 AbstractCegarLoop]: Abstraction has has 46 places, 28 transitions, 156 flow [2021-03-24 19:51:53,612 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 86.2) internal successors, (431), 5 states have internal predecessors, (431), 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) [2021-03-24 19:51:53,612 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 19:51:53,612 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 19:51:53,612 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-03-24 19:51:53,613 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 19:51:53,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 19:51:53,614 INFO L82 PathProgramCache]: Analyzing trace with hash 1590887645, now seen corresponding path program 1 times [2021-03-24 19:51:53,614 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 19:51:53,614 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [411750014] [2021-03-24 19:51:53,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 19:51:53,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 19:51:53,676 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:51:53,677 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 19:51:53,678 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:51:53,679 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 19:51:53,687 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.8 percent of original size [2021-03-24 19:51:53,689 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 19:51:53,706 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-03-24 19:51:53,708 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-24 19:51:53,715 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:51:53,716 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 19:51:53,716 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 19:51:53,719 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [411750014] [2021-03-24 19:51:53,719 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 19:51:53,719 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-24 19:51:53,719 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [853259920] [2021-03-24 19:51:53,720 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-24 19:51:53,720 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 19:51:53,721 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-24 19:51:53,721 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-03-24 19:51:53,722 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 111 [2021-03-24 19:51:53,723 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 28 transitions, 156 flow. Second operand has 5 states, 5 states have (on average 85.8) internal successors, (429), 5 states have internal predecessors, (429), 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) [2021-03-24 19:51:53,723 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 19:51:53,723 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 111 [2021-03-24 19:51:53,723 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 19:51:53,821 INFO L129 PetriNetUnfolder]: 141/311 cut-off events. [2021-03-24 19:51:53,822 INFO L130 PetriNetUnfolder]: For 252/281 co-relation queries the response was YES. [2021-03-24 19:51:53,823 INFO L84 FinitePrefix]: Finished finitePrefix Result has 751 conditions, 311 events. 141/311 cut-off events. For 252/281 co-relation queries the response was YES. Maximal size of possible extension queue 65. Compared 1700 event pairs, 20 based on Foata normal form. 21/303 useless extension candidates. Maximal degree in co-relation 728. Up to 146 conditions per place. [2021-03-24 19:51:53,824 INFO L132 encePairwiseOnDemand]: 104/111 looper letters, 8 selfloop transitions, 5 changer transitions 9/43 dead transitions. [2021-03-24 19:51:53,824 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 43 transitions, 230 flow [2021-03-24 19:51:53,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-24 19:51:53,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-24 19:51:53,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 534 transitions. [2021-03-24 19:51:53,826 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8018018018018018 [2021-03-24 19:51:53,826 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 534 transitions. [2021-03-24 19:51:53,826 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 534 transitions. [2021-03-24 19:51:53,826 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 19:51:53,827 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 534 transitions. [2021-03-24 19:51:53,828 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 89.0) internal successors, (534), 6 states have internal predecessors, (534), 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) [2021-03-24 19:51:53,829 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 111.0) internal successors, (777), 7 states have internal predecessors, (777), 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) [2021-03-24 19:51:53,829 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 111.0) internal successors, (777), 7 states have internal predecessors, (777), 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) [2021-03-24 19:51:53,829 INFO L185 Difference]: Start difference. First operand has 46 places, 28 transitions, 156 flow. Second operand 6 states and 534 transitions. [2021-03-24 19:51:53,829 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 43 transitions, 230 flow [2021-03-24 19:51:53,831 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 43 transitions, 204 flow, removed 5 selfloop flow, removed 5 redundant places. [2021-03-24 19:51:53,832 INFO L241 Difference]: Finished difference. Result has 50 places, 31 transitions, 174 flow [2021-03-24 19:51:53,832 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=130, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=174, PETRI_PLACES=50, PETRI_TRANSITIONS=31} [2021-03-24 19:51:53,832 INFO L343 CegarLoopForPetriNet]: 32 programPoint places, 18 predicate places. [2021-03-24 19:51:53,832 INFO L480 AbstractCegarLoop]: Abstraction has has 50 places, 31 transitions, 174 flow [2021-03-24 19:51:53,832 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 85.8) internal successors, (429), 5 states have internal predecessors, (429), 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) [2021-03-24 19:51:53,833 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 19:51:53,833 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 19:51:53,833 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-03-24 19:51:53,833 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 19:51:53,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 19:51:53,833 INFO L82 PathProgramCache]: Analyzing trace with hash 1649060355, now seen corresponding path program 1 times [2021-03-24 19:51:53,833 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 19:51:53,833 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [158780618] [2021-03-24 19:51:53,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 19:51:53,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 19:51:53,889 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:51:53,889 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 19:51:53,890 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:51:53,890 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 19:51:53,893 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:51:53,893 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 19:51:53,900 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.8 percent of original size [2021-03-24 19:51:53,900 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 19:51:53,926 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-03-24 19:51:53,928 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-24 19:51:53,936 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:51:53,936 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 19:51:53,937 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 19:51:53,937 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [158780618] [2021-03-24 19:51:53,937 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 19:51:53,937 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-24 19:51:53,937 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2064488593] [2021-03-24 19:51:53,938 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-24 19:51:53,938 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 19:51:53,938 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-24 19:51:53,938 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-03-24 19:51:53,939 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 111 [2021-03-24 19:51:53,940 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 31 transitions, 174 flow. Second operand has 6 states, 6 states have (on average 85.83333333333333) internal successors, (515), 6 states have internal predecessors, (515), 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) [2021-03-24 19:51:53,940 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 19:51:53,940 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 111 [2021-03-24 19:51:53,940 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 19:51:54,054 INFO L129 PetriNetUnfolder]: 71/195 cut-off events. [2021-03-24 19:51:54,054 INFO L130 PetriNetUnfolder]: For 307/372 co-relation queries the response was YES. [2021-03-24 19:51:54,055 INFO L84 FinitePrefix]: Finished finitePrefix Result has 769 conditions, 195 events. 71/195 cut-off events. For 307/372 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 960 event pairs, 1 based on Foata normal form. 36/222 useless extension candidates. Maximal degree in co-relation 744. Up to 133 conditions per place. [2021-03-24 19:51:54,056 INFO L132 encePairwiseOnDemand]: 104/111 looper letters, 4 selfloop transitions, 8 changer transitions 15/46 dead transitions. [2021-03-24 19:51:54,056 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 46 transitions, 313 flow [2021-03-24 19:51:54,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-24 19:51:54,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-24 19:51:54,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 622 transitions. [2021-03-24 19:51:54,058 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8005148005148005 [2021-03-24 19:51:54,058 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 622 transitions. [2021-03-24 19:51:54,058 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 622 transitions. [2021-03-24 19:51:54,059 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 19:51:54,059 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 622 transitions. [2021-03-24 19:51:54,060 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 88.85714285714286) internal successors, (622), 7 states have internal predecessors, (622), 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) [2021-03-24 19:51:54,061 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 111.0) internal successors, (888), 8 states have internal predecessors, (888), 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) [2021-03-24 19:51:54,062 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 111.0) internal successors, (888), 8 states have internal predecessors, (888), 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) [2021-03-24 19:51:54,062 INFO L185 Difference]: Start difference. First operand has 50 places, 31 transitions, 174 flow. Second operand 7 states and 622 transitions. [2021-03-24 19:51:54,062 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 46 transitions, 313 flow [2021-03-24 19:51:54,064 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 46 transitions, 297 flow, removed 4 selfloop flow, removed 3 redundant places. [2021-03-24 19:51:54,065 INFO L241 Difference]: Finished difference. Result has 55 places, 31 transitions, 204 flow [2021-03-24 19:51:54,065 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=164, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=204, PETRI_PLACES=55, PETRI_TRANSITIONS=31} [2021-03-24 19:51:54,065 INFO L343 CegarLoopForPetriNet]: 32 programPoint places, 23 predicate places. [2021-03-24 19:51:54,065 INFO L480 AbstractCegarLoop]: Abstraction has has 55 places, 31 transitions, 204 flow [2021-03-24 19:51:54,066 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 85.83333333333333) internal successors, (515), 6 states have internal predecessors, (515), 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) [2021-03-24 19:51:54,066 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 19:51:54,066 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 19:51:54,066 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-03-24 19:51:54,066 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 19:51:54,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 19:51:54,066 INFO L82 PathProgramCache]: Analyzing trace with hash 906877955, now seen corresponding path program 1 times [2021-03-24 19:51:54,067 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 19:51:54,067 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [502140903] [2021-03-24 19:51:54,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 19:51:54,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 19:51:54,104 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:51:54,104 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 19:51:54,105 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:51:54,105 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 19:51:54,108 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:51:54,109 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 19:51:54,113 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:51:54,113 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 19:51:54,118 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.8 percent of original size [2021-03-24 19:51:54,131 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 19:51:54,150 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-03-24 19:51:54,150 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-24 19:51:54,165 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:51:54,166 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 19:51:54,166 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 19:51:54,166 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [502140903] [2021-03-24 19:51:54,167 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 19:51:54,167 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-24 19:51:54,167 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1146573689] [2021-03-24 19:51:54,167 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-24 19:51:54,167 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 19:51:54,168 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-24 19:51:54,168 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-03-24 19:51:54,169 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 111 [2021-03-24 19:51:54,169 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 31 transitions, 204 flow. Second operand has 7 states, 7 states have (on average 85.85714285714286) internal successors, (601), 7 states have internal predecessors, (601), 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) [2021-03-24 19:51:54,169 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 19:51:54,170 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 111 [2021-03-24 19:51:54,170 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 19:51:54,308 INFO L129 PetriNetUnfolder]: 16/83 cut-off events. [2021-03-24 19:51:54,308 INFO L130 PetriNetUnfolder]: For 377/451 co-relation queries the response was YES. [2021-03-24 19:51:54,308 INFO L84 FinitePrefix]: Finished finitePrefix Result has 399 conditions, 83 events. 16/83 cut-off events. For 377/451 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 303 event pairs, 0 based on Foata normal form. 36/117 useless extension candidates. Maximal degree in co-relation 374. Up to 49 conditions per place. [2021-03-24 19:51:54,309 INFO L132 encePairwiseOnDemand]: 104/111 looper letters, 0 selfloop transitions, 0 changer transitions 35/35 dead transitions. [2021-03-24 19:51:54,309 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 35 transitions, 268 flow [2021-03-24 19:51:54,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-24 19:51:54,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-24 19:51:54,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 699 transitions. [2021-03-24 19:51:54,330 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7871621621621622 [2021-03-24 19:51:54,330 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 699 transitions. [2021-03-24 19:51:54,330 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 699 transitions. [2021-03-24 19:51:54,330 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 19:51:54,331 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 699 transitions. [2021-03-24 19:51:54,332 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 87.375) internal successors, (699), 8 states have internal predecessors, (699), 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) [2021-03-24 19:51:54,333 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 111.0) internal successors, (999), 9 states have internal predecessors, (999), 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) [2021-03-24 19:51:54,334 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 111.0) internal successors, (999), 9 states have internal predecessors, (999), 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) [2021-03-24 19:51:54,334 INFO L185 Difference]: Start difference. First operand has 55 places, 31 transitions, 204 flow. Second operand 8 states and 699 transitions. [2021-03-24 19:51:54,334 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 35 transitions, 268 flow [2021-03-24 19:51:54,335 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 35 transitions, 199 flow, removed 17 selfloop flow, removed 11 redundant places. [2021-03-24 19:51:54,336 INFO L241 Difference]: Finished difference. Result has 48 places, 0 transitions, 0 flow [2021-03-24 19:51:54,336 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=134, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=0, PETRI_PLACES=48, PETRI_TRANSITIONS=0} [2021-03-24 19:51:54,336 INFO L343 CegarLoopForPetriNet]: 32 programPoint places, 16 predicate places. [2021-03-24 19:51:54,336 INFO L480 AbstractCegarLoop]: Abstraction has has 48 places, 0 transitions, 0 flow [2021-03-24 19:51:54,337 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 85.85714285714286) internal successors, (601), 7 states have internal predecessors, (601), 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) [2021-03-24 19:51:54,340 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-03-24 19:51:54,343 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.03 07:51:54 BasicIcfg [2021-03-24 19:51:54,343 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-24 19:51:54,346 INFO L168 Benchmark]: Toolchain (without parser) took 4013.29 ms. Allocated memory was 255.9 MB in the beginning and 434.1 MB in the end (delta: 178.3 MB). Free memory was 234.7 MB in the beginning and 411.7 MB in the end (delta: -177.0 MB). Peak memory consumption was 208.7 MB. Max. memory is 16.0 GB. [2021-03-24 19:51:54,347 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 255.9 MB. Free memory was 237.6 MB in the beginning and 237.5 MB in the end (delta: 160.0 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-24 19:51:54,347 INFO L168 Benchmark]: CACSL2BoogieTranslator took 506.55 ms. Allocated memory was 255.9 MB in the beginning and 360.7 MB in the end (delta: 104.9 MB). Free memory was 234.7 MB in the beginning and 323.4 MB in the end (delta: -88.7 MB). Peak memory consumption was 14.9 MB. Max. memory is 16.0 GB. [2021-03-24 19:51:54,350 INFO L168 Benchmark]: Boogie Procedure Inliner took 57.22 ms. Allocated memory is still 360.7 MB. Free memory was 323.4 MB in the beginning and 321.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-24 19:51:54,351 INFO L168 Benchmark]: Boogie Preprocessor took 30.90 ms. Allocated memory is still 360.7 MB. Free memory was 321.3 MB in the beginning and 320.0 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-24 19:51:54,352 INFO L168 Benchmark]: RCFGBuilder took 454.76 ms. Allocated memory is still 360.7 MB. Free memory was 320.0 MB in the beginning and 298.3 MB in the end (delta: 21.7 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.0 GB. [2021-03-24 19:51:54,353 INFO L168 Benchmark]: TraceAbstraction took 2959.22 ms. Allocated memory was 360.7 MB in the beginning and 434.1 MB in the end (delta: 73.4 MB). Free memory was 297.6 MB in the beginning and 411.7 MB in the end (delta: -114.2 MB). Peak memory consumption was 166.5 MB. Max. memory is 16.0 GB. [2021-03-24 19:51:54,361 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 255.9 MB. Free memory was 237.6 MB in the beginning and 237.5 MB in the end (delta: 160.0 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 506.55 ms. Allocated memory was 255.9 MB in the beginning and 360.7 MB in the end (delta: 104.9 MB). Free memory was 234.7 MB in the beginning and 323.4 MB in the end (delta: -88.7 MB). Peak memory consumption was 14.9 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 57.22 ms. Allocated memory is still 360.7 MB. Free memory was 323.4 MB in the beginning and 321.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 30.90 ms. Allocated memory is still 360.7 MB. Free memory was 321.3 MB in the beginning and 320.0 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 454.76 ms. Allocated memory is still 360.7 MB. Free memory was 320.0 MB in the beginning and 298.3 MB in the end (delta: 21.7 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.0 GB. * TraceAbstraction took 2959.22 ms. Allocated memory was 360.7 MB in the beginning and 434.1 MB in the end (delta: 73.4 MB). Free memory was 297.6 MB in the beginning and 411.7 MB in the end (delta: -114.2 MB). Peak memory consumption was 166.5 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1255.4ms, 68 PlacesBefore, 32 PlacesAfterwards, 59 TransitionsBefore, 22 TransitionsAfterwards, 864 CoEnabledTransitionPairs, 4 FixpointIterations, 14 TrivialSequentialCompositions, 22 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 1 ChoiceCompositions, 37 TotalNumberOfCompositions, 996 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 540, positive: 507, positive conditional: 0, positive unconditional: 507, negative: 33, negative conditional: 0, negative unconditional: 33, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 481, positive: 459, positive conditional: 0, positive unconditional: 459, negative: 22, negative conditional: 0, negative unconditional: 22, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 481, positive: 459, positive conditional: 0, positive unconditional: 459, negative: 22, negative conditional: 0, negative unconditional: 22, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 481, positive: 455, positive conditional: 0, positive unconditional: 455, negative: 26, negative conditional: 0, negative unconditional: 26, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 26, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 22, negative conditional: 0, negative unconditional: 22, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 114, positive: 22, positive conditional: 0, positive unconditional: 22, negative: 93, negative conditional: 0, negative unconditional: 93, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 540, positive: 48, positive conditional: 0, positive unconditional: 48, negative: 11, negative conditional: 0, negative unconditional: 11, unknown: 481, unknown conditional: 0, unknown unconditional: 481] , Statistics on independence cache: Total cache size (in pairs): 34, Positive cache size: 31, Positive conditional cache size: 0, Positive unconditional cache size: 31, Negative cache size: 3, Negative conditional cache size: 0, Negative unconditional cache size: 3 - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 73 locations, 1 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 5.3ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 2864.0ms, OverallIterations: 8, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 647.3ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 1375.5ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 40 SDtfs, 35 SDslu, 41 SDs, 0 SdLazy, 128 SolverSat, 45 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 111.4ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 44 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 274.5ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=204occurred in iteration=7, InterpolantAutomatonStates: 39, 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: 20.2ms SsaConstructionTime, 182.7ms SatisfiabilityAnalysisTime, 459.0ms InterpolantComputationTime, 130 NumberOfCodeBlocks, 130 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 122 ConstructedInterpolants, 0 QuantifiedInterpolants, 452 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! Received shutdown request...