/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-RepeatedSemanticLbeWithPredicates.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe034_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-6f4246e9f5583d222ebb38ff8175c901f3a528f0-6f4246e [2021-04-29 00:47:31,590 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-04-29 00:47:31,593 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-04-29 00:47:31,646 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-04-29 00:47:31,680 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-04-29 00:47:31,683 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-04-29 00:47:31,686 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-04-29 00:47:31,688 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-04-29 00:47:31,692 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-04-29 00:47:31,693 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-04-29 00:47:31,701 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-04-29 00:47:31,710 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-04-29 00:47:31,712 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-04-29 00:47:31,715 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-04-29 00:47:31,717 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-04-29 00:47:31,720 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-04-29 00:47:31,729 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-04-29 00:47:31,743 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-04-29 00:47:31,744 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-04-29 00:47:31,745 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-04-29 00:47:31,746 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-RepeatedSemanticLbeWithPredicates.epf [2021-04-29 00:47:31,807 INFO L113 SettingsManager]: Loading preferences was successful [2021-04-29 00:47:31,807 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-04-29 00:47:31,809 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-04-29 00:47:31,809 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-04-29 00:47:31,809 INFO L138 SettingsManager]: * Use SBE=true [2021-04-29 00:47:31,810 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-04-29 00:47:31,810 INFO L138 SettingsManager]: * sizeof long=4 [2021-04-29 00:47:31,810 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-04-29 00:47:31,811 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-04-29 00:47:31,811 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-04-29 00:47:31,811 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-04-29 00:47:31,811 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-04-29 00:47:31,812 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-04-29 00:47:31,812 INFO L138 SettingsManager]: * sizeof long double=12 [2021-04-29 00:47:31,812 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-04-29 00:47:31,812 INFO L138 SettingsManager]: * Use constant arrays=true [2021-04-29 00:47:31,812 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-04-29 00:47:31,813 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-04-29 00:47:31,813 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-04-29 00:47:31,813 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-04-29 00:47:31,813 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-04-29 00:47:31,814 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-04-29 00:47:31,814 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-04-29 00:47:31,814 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-04-29 00:47:31,814 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-04-29 00:47:31,814 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-04-29 00:47:31,815 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-04-29 00:47:31,815 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=SEMANTIC_BASED_MOVER_CHECK_WITH_PREDICATES [2021-04-29 00:47:31,815 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-04-29 00:47:31,815 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-04-29 00:47:31,815 INFO L138 SettingsManager]: * Apply repeated Lipton Reduction=true WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-04-29 00:47:32,199 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-04-29 00:47:32,239 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-04-29 00:47:32,244 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-04-29 00:47:32,245 INFO L271 PluginConnector]: Initializing CDTParser... [2021-04-29 00:47:32,246 INFO L275 PluginConnector]: CDTParser initialized [2021-04-29 00:47:32,247 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe034_tso.oepc.i [2021-04-29 00:47:32,329 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/042e5d720/2049327f74d14dd3b3d5f42de5b3cc61/FLAG6aae246a7 [2021-04-29 00:47:33,174 INFO L306 CDTParser]: Found 1 translation units. [2021-04-29 00:47:33,175 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe034_tso.oepc.i [2021-04-29 00:47:33,202 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/042e5d720/2049327f74d14dd3b3d5f42de5b3cc61/FLAG6aae246a7 [2021-04-29 00:47:33,413 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/042e5d720/2049327f74d14dd3b3d5f42de5b3cc61 [2021-04-29 00:47:33,416 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-04-29 00:47:33,460 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-04-29 00:47:33,464 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-04-29 00:47:33,465 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-04-29 00:47:33,468 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-04-29 00:47:33,470 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.04 12:47:33" (1/1) ... [2021-04-29 00:47:33,471 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@166853f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:47:33, skipping insertion in model container [2021-04-29 00:47:33,471 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.04 12:47:33" (1/1) ... [2021-04-29 00:47:33,483 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-04-29 00:47:33,532 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-04-29 00:47:33,735 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/safe034_tso.oepc.i[950,963] [2021-04-29 00:47:33,974 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-29 00:47:33,985 INFO L203 MainTranslator]: Completed pre-run [2021-04-29 00:47:34,010 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/safe034_tso.oepc.i[950,963] [2021-04-29 00:47:34,084 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-29 00:47:34,230 INFO L208 MainTranslator]: Completed translation [2021-04-29 00:47:34,230 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:47:34 WrapperNode [2021-04-29 00:47:34,231 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-04-29 00:47:34,235 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-04-29 00:47:34,236 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-04-29 00:47:34,236 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-04-29 00:47:34,262 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:47:34" (1/1) ... [2021-04-29 00:47:34,295 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:47:34" (1/1) ... [2021-04-29 00:47:34,334 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-04-29 00:47:34,336 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-04-29 00:47:34,336 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-04-29 00:47:34,336 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-04-29 00:47:34,345 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:47:34" (1/1) ... [2021-04-29 00:47:34,345 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:47:34" (1/1) ... [2021-04-29 00:47:34,363 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:47:34" (1/1) ... [2021-04-29 00:47:34,366 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:47:34" (1/1) ... [2021-04-29 00:47:34,373 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:47:34" (1/1) ... [2021-04-29 00:47:34,375 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:47:34" (1/1) ... [2021-04-29 00:47:34,377 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:47:34" (1/1) ... [2021-04-29 00:47:34,381 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-04-29 00:47:34,382 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-04-29 00:47:34,382 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-04-29 00:47:34,382 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-04-29 00:47:34,383 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:47:34" (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 [2021-04-29 00:47:34,489 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-04-29 00:47:34,489 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-04-29 00:47:34,490 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-04-29 00:47:34,490 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-04-29 00:47:34,490 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-04-29 00:47:34,490 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-04-29 00:47:34,490 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-04-29 00:47:34,490 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-04-29 00:47:34,490 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-04-29 00:47:34,491 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-04-29 00:47:34,491 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-04-29 00:47:34,491 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-04-29 00:47:34,491 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-04-29 00:47:34,491 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-04-29 00:47:34,493 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-04-29 00:47:34,895 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-04-29 00:47:34,895 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-04-29 00:47:34,900 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.04 12:47:34 BoogieIcfgContainer [2021-04-29 00:47:34,900 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-04-29 00:47:34,904 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-04-29 00:47:34,904 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-04-29 00:47:34,908 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-04-29 00:47:34,908 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.04 12:47:33" (1/3) ... [2021-04-29 00:47:34,909 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27a2916a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.04 12:47:34, skipping insertion in model container [2021-04-29 00:47:34,910 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:47:34" (2/3) ... [2021-04-29 00:47:34,910 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27a2916a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.04 12:47:34, skipping insertion in model container [2021-04-29 00:47:34,910 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.04 12:47:34" (3/3) ... [2021-04-29 00:47:34,912 INFO L111 eAbstractionObserver]: Analyzing ICFG safe034_tso.oepc.i [2021-04-29 00:47:34,920 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-04-29 00:47:34,926 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-04-29 00:47:34,927 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-04-29 00:47:34,964 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:47:34,964 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:47:34,964 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:47:34,964 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:47:34,965 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:47:34,965 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:47:34,965 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:47:34,965 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:47:34,966 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:47:34,966 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:47:34,966 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:47:34,966 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:47:34,967 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:47:34,967 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:47:34,967 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:47:34,967 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:47:34,968 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:47:34,968 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:47:34,968 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:47:34,968 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:47:34,969 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:47:34,969 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:47:34,969 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:47:34,969 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:47:34,970 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:47:34,970 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:47:34,970 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:47:34,971 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:47:34,971 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:47:34,971 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:47:34,971 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:47:34,971 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:47:34,972 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:47:34,972 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:47:34,972 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:47:34,973 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:47:34,975 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:47:34,976 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:47:34,976 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:47:34,976 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:47:34,986 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:47:34,987 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:47:34,987 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:47:34,987 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:47:34,993 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:47:34,993 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:47:34,993 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:47:34,994 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:47:35,000 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-04-29 00:47:35,036 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-04-29 00:47:35,085 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-04-29 00:47:35,086 INFO L377 AbstractCegarLoop]: Hoare is false [2021-04-29 00:47:35,086 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-04-29 00:47:35,086 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-04-29 00:47:35,086 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-04-29 00:47:35,086 INFO L381 AbstractCegarLoop]: Difference is false [2021-04-29 00:47:35,086 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-04-29 00:47:35,087 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-04-29 00:47:35,108 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 83 places, 75 transitions, 165 flow [2021-04-29 00:47:35,188 INFO L129 PetriNetUnfolder]: 2/72 cut-off events. [2021-04-29 00:47:35,189 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 00:47:35,193 INFO L84 FinitePrefix]: Finished finitePrefix Result has 82 conditions, 72 events. 2/72 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 53 event pairs, 0 based on Foata normal form. 0/69 useless extension candidates. Maximal degree in co-relation 56. Up to 2 conditions per place. [2021-04-29 00:47:35,194 INFO L82 GeneralOperation]: Start removeDead. Operand has 83 places, 75 transitions, 165 flow [2021-04-29 00:47:35,199 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 69 places, 60 transitions, 129 flow [2021-04-29 00:47:35,201 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:47:35,218 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 69 places, 60 transitions, 129 flow [2021-04-29 00:47:35,223 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 69 places, 60 transitions, 129 flow [2021-04-29 00:47:35,224 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 69 places, 60 transitions, 129 flow [2021-04-29 00:47:35,243 INFO L129 PetriNetUnfolder]: 1/60 cut-off events. [2021-04-29 00:47:35,244 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 00:47:35,244 INFO L84 FinitePrefix]: Finished finitePrefix Result has 70 conditions, 60 events. 1/60 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 47 event pairs, 0 based on Foata normal form. 0/59 useless extension candidates. Maximal degree in co-relation 44. Up to 2 conditions per place. [2021-04-29 00:47:35,248 INFO L146 LiptonReduction]: Number of co-enabled transitions 864 [2021-04-29 00:47:41,417 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 62 [2021-04-29 00:47:41,610 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 62 [2021-04-29 00:47:41,771 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 56 [2021-04-29 00:47:41,954 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 56 [2021-04-29 00:47:42,145 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 60 [2021-04-29 00:47:42,341 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 60 [2021-04-29 00:47:42,514 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2021-04-29 00:47:42,683 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2021-04-29 00:47:42,844 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 54 [2021-04-29 00:47:43,143 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 62 [2021-04-29 00:47:43,331 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 62 [2021-04-29 00:47:43,502 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 62 [2021-04-29 00:47:43,706 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 62 [2021-04-29 00:47:43,993 WARN L205 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 76 [2021-04-29 00:47:44,303 WARN L205 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 76 [2021-04-29 00:47:44,514 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 62 [2021-04-29 00:47:44,696 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 62 [2021-04-29 00:47:45,006 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 54 [2021-04-29 00:47:45,176 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 62 [2021-04-29 00:47:45,380 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 62 [2021-04-29 00:47:45,607 WARN L205 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 71 [2021-04-29 00:47:45,862 WARN L205 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 71 [2021-04-29 00:47:45,979 INFO L158 LiptonReduction]: Checked pairs total: 6832 [2021-04-29 00:47:45,979 INFO L160 LiptonReduction]: Total number of compositions: 102 [2021-04-29 00:47:45,983 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 10784 [2021-04-29 00:47:46,004 INFO L129 PetriNetUnfolder]: 0/61 cut-off events. [2021-04-29 00:47:46,004 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 00:47:46,005 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:47:46,006 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:47:46,006 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:47:46,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:47:46,012 INFO L82 PathProgramCache]: Analyzing trace with hash -1627265742, now seen corresponding path program 1 times [2021-04-29 00:47:46,023 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:47:46,023 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [201856205] [2021-04-29 00:47:46,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:47:46,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:47:46,330 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:47:46,331 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:47:46,343 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 00:47:46,344 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [201856205] [2021-04-29 00:47:46,345 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:47:46,345 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-29 00:47:46,346 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1961919878] [2021-04-29 00:47:46,357 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-29 00:47:46,357 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:47:46,373 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-29 00:47:46,377 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-29 00:47:46,381 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 134 out of 177 [2021-04-29 00:47:46,390 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 72 transitions, 153 flow. Second operand has 3 states, 3 states have (on average 134.66666666666666) internal successors, (404), 3 states have internal predecessors, (404), 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) [2021-04-29 00:47:46,390 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:47:46,390 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 134 of 177 [2021-04-29 00:47:46,392 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:47:46,488 INFO L129 PetriNetUnfolder]: 25/176 cut-off events. [2021-04-29 00:47:46,489 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 00:47:46,490 INFO L84 FinitePrefix]: Finished finitePrefix Result has 248 conditions, 176 events. 25/176 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 1072 event pairs, 2 based on Foata normal form. 0/71 useless extension candidates. Maximal degree in co-relation 207. Up to 50 conditions per place. [2021-04-29 00:47:46,492 INFO L132 encePairwiseOnDemand]: 166/177 looper letters, 3 selfloop transitions, 3 changer transitions 40/79 dead transitions. [2021-04-29 00:47:46,492 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 79 transitions, 213 flow [2021-04-29 00:47:46,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-29 00:47:46,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-29 00:47:46,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 427 transitions. [2021-04-29 00:47:46,509 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8041431261770244 [2021-04-29 00:47:46,510 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 427 transitions. [2021-04-29 00:47:46,511 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 427 transitions. [2021-04-29 00:47:46,514 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:47:46,517 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 427 transitions. [2021-04-29 00:47:46,522 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 142.33333333333334) internal successors, (427), 3 states have internal predecessors, (427), 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) [2021-04-29 00:47:46,530 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 177.0) internal successors, (708), 4 states have internal predecessors, (708), 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) [2021-04-29 00:47:46,531 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 177.0) internal successors, (708), 4 states have internal predecessors, (708), 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) [2021-04-29 00:47:46,537 INFO L185 Difference]: Start difference. First operand has 82 places, 72 transitions, 153 flow. Second operand 3 states and 427 transitions. [2021-04-29 00:47:46,539 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 79 transitions, 213 flow [2021-04-29 00:47:46,543 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 79 transitions, 210 flow, removed 0 selfloop flow, removed 3 redundant places. [2021-04-29 00:47:46,546 INFO L241 Difference]: Finished difference. Result has 82 places, 39 transitions, 99 flow [2021-04-29 00:47:46,548 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=177, PETRI_DIFFERENCE_MINUEND_FLOW=150, PETRI_DIFFERENCE_MINUEND_PLACES=79, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=72, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=69, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=99, PETRI_PLACES=82, PETRI_TRANSITIONS=39} [2021-04-29 00:47:46,549 INFO L343 CegarLoopForPetriNet]: 82 programPoint places, 0 predicate places. [2021-04-29 00:47:46,549 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:47:46,550 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 82 places, 39 transitions, 99 flow [2021-04-29 00:47:46,550 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 82 places, 39 transitions, 99 flow [2021-04-29 00:47:46,551 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 47 places, 39 transitions, 99 flow [2021-04-29 00:47:46,558 INFO L129 PetriNetUnfolder]: 3/47 cut-off events. [2021-04-29 00:47:46,558 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 00:47:46,559 INFO L84 FinitePrefix]: Finished finitePrefix Result has 68 conditions, 47 events. 3/47 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 166 event pairs, 1 based on Foata normal form. 0/26 useless extension candidates. Maximal degree in co-relation 60. Up to 10 conditions per place. [2021-04-29 00:47:46,560 INFO L146 LiptonReduction]: Number of co-enabled transitions 822 [2021-04-29 00:47:46,573 INFO L158 LiptonReduction]: Checked pairs total: 476 [2021-04-29 00:47:46,574 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 00:47:46,574 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 25 [2021-04-29 00:47:46,576 INFO L480 AbstractCegarLoop]: Abstraction has has 47 places, 39 transitions, 99 flow [2021-04-29 00:47:46,577 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 134.66666666666666) internal successors, (404), 3 states have internal predecessors, (404), 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) [2021-04-29 00:47:46,577 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:47:46,577 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:47:46,577 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-04-29 00:47:46,577 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:47:46,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:47:46,578 INFO L82 PathProgramCache]: Analyzing trace with hash 1094368006, now seen corresponding path program 1 times [2021-04-29 00:47:46,578 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:47:46,579 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [716228779] [2021-04-29 00:47:46,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:47:46,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:47:46,664 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:47:46,667 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:47:46,686 INFO L142 QuantifierPusher]: treesize reduction 19, result has 32.1 percent of original size [2021-04-29 00:47:46,687 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-29 00:47:46,693 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 00:47:46,694 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [716228779] [2021-04-29 00:47:46,694 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:47:46,694 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-04-29 00:47:46,695 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [347624127] [2021-04-29 00:47:46,696 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-29 00:47:46,697 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:47:46,697 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-29 00:47:46,698 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-04-29 00:47:46,700 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 177 [2021-04-29 00:47:46,701 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 39 transitions, 99 flow. Second operand has 4 states, 4 states have (on average 109.75) internal successors, (439), 4 states have internal predecessors, (439), 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) [2021-04-29 00:47:46,701 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:47:46,701 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 177 [2021-04-29 00:47:46,701 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:47:47,190 INFO L129 PetriNetUnfolder]: 2377/3771 cut-off events. [2021-04-29 00:47:47,191 INFO L130 PetriNetUnfolder]: For 95/120 co-relation queries the response was YES. [2021-04-29 00:47:47,202 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7634 conditions, 3771 events. 2377/3771 cut-off events. For 95/120 co-relation queries the response was YES. Maximal size of possible extension queue 954. Compared 28993 event pairs, 1113 based on Foata normal form. 82/1163 useless extension candidates. Maximal degree in co-relation 7624. Up to 2485 conditions per place. [2021-04-29 00:47:47,215 INFO L132 encePairwiseOnDemand]: 159/177 looper letters, 26 selfloop transitions, 24 changer transitions 6/74 dead transitions. [2021-04-29 00:47:47,215 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 74 transitions, 281 flow [2021-04-29 00:47:47,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-04-29 00:47:47,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-04-29 00:47:47,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 601 transitions. [2021-04-29 00:47:47,220 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6790960451977401 [2021-04-29 00:47:47,220 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 601 transitions. [2021-04-29 00:47:47,220 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 601 transitions. [2021-04-29 00:47:47,221 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:47:47,221 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 601 transitions. [2021-04-29 00:47:47,223 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 120.2) internal successors, (601), 5 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) [2021-04-29 00:47:47,227 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 177.0) internal successors, (1062), 6 states have internal predecessors, (1062), 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) [2021-04-29 00:47:47,228 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 177.0) internal successors, (1062), 6 states have internal predecessors, (1062), 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) [2021-04-29 00:47:47,228 INFO L185 Difference]: Start difference. First operand has 47 places, 39 transitions, 99 flow. Second operand 5 states and 601 transitions. [2021-04-29 00:47:47,228 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 74 transitions, 281 flow [2021-04-29 00:47:47,230 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 74 transitions, 278 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-04-29 00:47:47,232 INFO L241 Difference]: Finished difference. Result has 53 places, 61 transitions, 281 flow [2021-04-29 00:47:47,232 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=177, PETRI_DIFFERENCE_MINUEND_FLOW=96, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=281, PETRI_PLACES=53, PETRI_TRANSITIONS=61} [2021-04-29 00:47:47,233 INFO L343 CegarLoopForPetriNet]: 82 programPoint places, -29 predicate places. [2021-04-29 00:47:47,233 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:47:47,233 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 53 places, 61 transitions, 281 flow [2021-04-29 00:47:47,234 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 53 places, 61 transitions, 281 flow [2021-04-29 00:47:47,234 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 53 places, 61 transitions, 281 flow [2021-04-29 00:47:47,551 INFO L129 PetriNetUnfolder]: 1955/3211 cut-off events. [2021-04-29 00:47:47,551 INFO L130 PetriNetUnfolder]: For 739/759 co-relation queries the response was YES. [2021-04-29 00:47:47,563 INFO L84 FinitePrefix]: Finished finitePrefix Result has 9070 conditions, 3211 events. 1955/3211 cut-off events. For 739/759 co-relation queries the response was YES. Maximal size of possible extension queue 645. Compared 23862 event pairs, 1025 based on Foata normal form. 2/953 useless extension candidates. Maximal degree in co-relation 9058. Up to 3002 conditions per place. [2021-04-29 00:47:47,603 INFO L146 LiptonReduction]: Number of co-enabled transitions 1030 [2021-04-29 00:47:47,622 INFO L158 LiptonReduction]: Checked pairs total: 865 [2021-04-29 00:47:47,622 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 00:47:47,622 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 389 [2021-04-29 00:47:47,624 INFO L480 AbstractCegarLoop]: Abstraction has has 53 places, 61 transitions, 281 flow [2021-04-29 00:47:47,625 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 109.75) internal successors, (439), 4 states have internal predecessors, (439), 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) [2021-04-29 00:47:47,625 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:47:47,625 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:47:47,625 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-04-29 00:47:47,626 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:47:47,626 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:47:47,626 INFO L82 PathProgramCache]: Analyzing trace with hash 409880481, now seen corresponding path program 1 times [2021-04-29 00:47:47,626 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:47:47,627 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1815034109] [2021-04-29 00:47:47,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:47:47,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:47:47,712 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:47:47,713 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:47:47,720 INFO L142 QuantifierPusher]: treesize reduction 4, result has 50.0 percent of original size [2021-04-29 00:47:47,722 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-04-29 00:47:47,732 INFO L142 QuantifierPusher]: treesize reduction 11, result has 54.2 percent of original size [2021-04-29 00:47:47,733 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-29 00:47:47,740 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 00:47:47,740 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1815034109] [2021-04-29 00:47:47,741 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:47:47,741 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-29 00:47:47,741 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [69167] [2021-04-29 00:47:47,741 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-04-29 00:47:47,742 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:47:47,745 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-04-29 00:47:47,746 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-04-29 00:47:47,749 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 177 [2021-04-29 00:47:47,750 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 61 transitions, 281 flow. Second operand has 5 states, 5 states have (on average 109.8) internal successors, (549), 5 states have internal predecessors, (549), 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) [2021-04-29 00:47:47,750 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:47:47,751 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 177 [2021-04-29 00:47:47,751 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:47:48,383 INFO L129 PetriNetUnfolder]: 2155/3927 cut-off events. [2021-04-29 00:47:48,384 INFO L130 PetriNetUnfolder]: For 1534/1951 co-relation queries the response was YES. [2021-04-29 00:47:48,395 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14904 conditions, 3927 events. 2155/3927 cut-off events. For 1534/1951 co-relation queries the response was YES. Maximal size of possible extension queue 1188. Compared 33823 event pairs, 252 based on Foata normal form. 98/1379 useless extension candidates. Maximal degree in co-relation 14890. Up to 3605 conditions per place. [2021-04-29 00:47:48,409 INFO L132 encePairwiseOnDemand]: 159/177 looper letters, 21 selfloop transitions, 46 changer transitions 12/97 dead transitions. [2021-04-29 00:47:48,409 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 97 transitions, 634 flow [2021-04-29 00:47:48,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-04-29 00:47:48,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-04-29 00:47:48,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 840 transitions. [2021-04-29 00:47:48,413 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6779661016949152 [2021-04-29 00:47:48,414 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 840 transitions. [2021-04-29 00:47:48,414 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 840 transitions. [2021-04-29 00:47:48,415 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:47:48,415 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 840 transitions. [2021-04-29 00:47:48,418 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 120.0) internal successors, (840), 7 states have internal predecessors, (840), 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) [2021-04-29 00:47:48,421 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 177.0) internal successors, (1416), 8 states have internal predecessors, (1416), 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) [2021-04-29 00:47:48,423 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 177.0) internal successors, (1416), 8 states have internal predecessors, (1416), 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) [2021-04-29 00:47:48,423 INFO L185 Difference]: Start difference. First operand has 53 places, 61 transitions, 281 flow. Second operand 7 states and 840 transitions. [2021-04-29 00:47:48,423 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 97 transitions, 634 flow [2021-04-29 00:47:48,440 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 97 transitions, 634 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-04-29 00:47:48,444 INFO L241 Difference]: Finished difference. Result has 62 places, 83 transitions, 587 flow [2021-04-29 00:47:48,444 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=177, PETRI_DIFFERENCE_MINUEND_FLOW=281, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=61, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=30, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=587, PETRI_PLACES=62, PETRI_TRANSITIONS=83} [2021-04-29 00:47:48,444 INFO L343 CegarLoopForPetriNet]: 82 programPoint places, -20 predicate places. [2021-04-29 00:47:48,444 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:47:48,445 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 62 places, 83 transitions, 587 flow [2021-04-29 00:47:48,445 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 62 places, 83 transitions, 587 flow [2021-04-29 00:47:48,446 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 62 places, 83 transitions, 587 flow [2021-04-29 00:47:48,810 INFO L129 PetriNetUnfolder]: 1135/2724 cut-off events. [2021-04-29 00:47:48,810 INFO L130 PetriNetUnfolder]: For 2919/3076 co-relation queries the response was YES. [2021-04-29 00:47:48,820 INFO L84 FinitePrefix]: Finished finitePrefix Result has 11741 conditions, 2724 events. 1135/2724 cut-off events. For 2919/3076 co-relation queries the response was YES. Maximal size of possible extension queue 678. Compared 28923 event pairs, 252 based on Foata normal form. 3/839 useless extension candidates. Maximal degree in co-relation 11724. Up to 2477 conditions per place. [2021-04-29 00:47:48,854 INFO L146 LiptonReduction]: Number of co-enabled transitions 1256 [2021-04-29 00:47:48,897 INFO L158 LiptonReduction]: Checked pairs total: 1586 [2021-04-29 00:47:48,897 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 00:47:48,897 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 453 [2021-04-29 00:47:48,899 INFO L480 AbstractCegarLoop]: Abstraction has has 62 places, 83 transitions, 587 flow [2021-04-29 00:47:48,900 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 109.8) internal successors, (549), 5 states have internal predecessors, (549), 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) [2021-04-29 00:47:48,900 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:47:48,900 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:47:48,901 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-04-29 00:47:48,901 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:47:48,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:47:48,901 INFO L82 PathProgramCache]: Analyzing trace with hash 1093454434, now seen corresponding path program 1 times [2021-04-29 00:47:48,901 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:47:48,902 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2052314177] [2021-04-29 00:47:48,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:47:48,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:47:48,952 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:47:48,953 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 00:47:48,954 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:47:48,954 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:47:48,957 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:47:48,957 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:47:48,961 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 00:47:48,961 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2052314177] [2021-04-29 00:47:48,961 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:47:48,962 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-29 00:47:48,962 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1098026924] [2021-04-29 00:47:48,962 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-29 00:47:48,962 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:47:48,963 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-29 00:47:48,963 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-04-29 00:47:48,964 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 177 [2021-04-29 00:47:48,965 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 83 transitions, 587 flow. Second operand has 4 states, 4 states have (on average 118.0) internal successors, (472), 4 states have internal predecessors, (472), 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) [2021-04-29 00:47:48,966 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:47:48,966 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 177 [2021-04-29 00:47:48,966 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:47:49,682 INFO L129 PetriNetUnfolder]: 2047/4893 cut-off events. [2021-04-29 00:47:49,682 INFO L130 PetriNetUnfolder]: For 6461/6774 co-relation queries the response was YES. [2021-04-29 00:47:49,698 INFO L84 FinitePrefix]: Finished finitePrefix Result has 21107 conditions, 4893 events. 2047/4893 cut-off events. For 6461/6774 co-relation queries the response was YES. Maximal size of possible extension queue 1242. Compared 54071 event pairs, 468 based on Foata normal form. 60/1533 useless extension candidates. Maximal degree in co-relation 21088. Up to 4526 conditions per place. [2021-04-29 00:47:49,715 INFO L132 encePairwiseOnDemand]: 174/177 looper letters, 4 selfloop transitions, 2 changer transitions 0/85 dead transitions. [2021-04-29 00:47:49,715 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 85 transitions, 613 flow [2021-04-29 00:47:49,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-04-29 00:47:49,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-04-29 00:47:49,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 475 transitions. [2021-04-29 00:47:49,717 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6709039548022598 [2021-04-29 00:47:49,718 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 475 transitions. [2021-04-29 00:47:49,718 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 475 transitions. [2021-04-29 00:47:49,718 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:47:49,718 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 475 transitions. [2021-04-29 00:47:49,720 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 118.75) internal successors, (475), 4 states have internal predecessors, (475), 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) [2021-04-29 00:47:49,722 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 177.0) internal successors, (885), 5 states have internal predecessors, (885), 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) [2021-04-29 00:47:49,724 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 177.0) internal successors, (885), 5 states have internal predecessors, (885), 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) [2021-04-29 00:47:49,724 INFO L185 Difference]: Start difference. First operand has 62 places, 83 transitions, 587 flow. Second operand 4 states and 475 transitions. [2021-04-29 00:47:49,724 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 85 transitions, 613 flow [2021-04-29 00:47:50,011 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 85 transitions, 499 flow, removed 36 selfloop flow, removed 3 redundant places. [2021-04-29 00:47:50,013 INFO L241 Difference]: Finished difference. Result has 64 places, 84 transitions, 486 flow [2021-04-29 00:47:50,013 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=177, PETRI_DIFFERENCE_MINUEND_FLOW=473, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=83, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=81, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=486, PETRI_PLACES=64, PETRI_TRANSITIONS=84} [2021-04-29 00:47:50,014 INFO L343 CegarLoopForPetriNet]: 82 programPoint places, -18 predicate places. [2021-04-29 00:47:50,014 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:47:50,014 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 64 places, 84 transitions, 486 flow [2021-04-29 00:47:50,014 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 64 places, 84 transitions, 486 flow [2021-04-29 00:47:50,015 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 64 places, 84 transitions, 486 flow [2021-04-29 00:47:50,513 INFO L129 PetriNetUnfolder]: 2038/4875 cut-off events. [2021-04-29 00:47:50,514 INFO L130 PetriNetUnfolder]: For 5141/5147 co-relation queries the response was YES. [2021-04-29 00:47:50,536 INFO L84 FinitePrefix]: Finished finitePrefix Result has 18526 conditions, 4875 events. 2038/4875 cut-off events. For 5141/5147 co-relation queries the response was YES. Maximal size of possible extension queue 1246. Compared 55640 event pairs, 468 based on Foata normal form. 4/1458 useless extension candidates. Maximal degree in co-relation 18508. Up to 3230 conditions per place. [2021-04-29 00:47:50,597 INFO L146 LiptonReduction]: Number of co-enabled transitions 1308 [2021-04-29 00:47:50,622 INFO L158 LiptonReduction]: Checked pairs total: 984 [2021-04-29 00:47:50,622 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 00:47:50,623 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 609 [2021-04-29 00:47:50,624 INFO L480 AbstractCegarLoop]: Abstraction has has 64 places, 84 transitions, 486 flow [2021-04-29 00:47:50,625 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 118.0) internal successors, (472), 4 states have internal predecessors, (472), 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) [2021-04-29 00:47:50,625 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:47:50,626 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:47:50,626 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-04-29 00:47:50,626 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:47:50,626 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:47:50,627 INFO L82 PathProgramCache]: Analyzing trace with hash -830611474, now seen corresponding path program 1 times [2021-04-29 00:47:50,627 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:47:50,627 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1801794936] [2021-04-29 00:47:50,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:47:50,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:47:50,683 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:47:50,684 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:47:50,687 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:47:50,687 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:47:50,691 INFO L142 QuantifierPusher]: treesize reduction 4, result has 50.0 percent of original size [2021-04-29 00:47:50,692 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-04-29 00:47:50,697 INFO L142 QuantifierPusher]: treesize reduction 11, result has 54.2 percent of original size [2021-04-29 00:47:50,698 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-29 00:47:50,713 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 00:47:50,713 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1801794936] [2021-04-29 00:47:50,714 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:47:50,714 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-04-29 00:47:50,714 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1701463469] [2021-04-29 00:47:50,714 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-04-29 00:47:50,715 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:47:50,715 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-04-29 00:47:50,715 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-04-29 00:47:50,717 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 177 [2021-04-29 00:47:50,718 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 84 transitions, 486 flow. Second operand has 6 states, 6 states have (on average 109.83333333333333) internal successors, (659), 6 states have internal predecessors, (659), 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) [2021-04-29 00:47:50,718 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:47:50,719 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 177 [2021-04-29 00:47:50,719 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:47:51,516 INFO L129 PetriNetUnfolder]: 1597/4677 cut-off events. [2021-04-29 00:47:51,516 INFO L130 PetriNetUnfolder]: For 5668/6367 co-relation queries the response was YES. [2021-04-29 00:47:51,532 INFO L84 FinitePrefix]: Finished finitePrefix Result has 21743 conditions, 4677 events. 1597/4677 cut-off events. For 5668/6367 co-relation queries the response was YES. Maximal size of possible extension queue 1566. Compared 57650 event pairs, 0 based on Foata normal form. 101/1563 useless extension candidates. Maximal degree in co-relation 21723. Up to 2852 conditions per place. [2021-04-29 00:47:51,547 INFO L132 encePairwiseOnDemand]: 159/177 looper letters, 5 selfloop transitions, 61 changer transitions 24/109 dead transitions. [2021-04-29 00:47:51,547 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 109 transitions, 829 flow [2021-04-29 00:47:51,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-04-29 00:47:51,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-04-29 00:47:51,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1061 transitions. [2021-04-29 00:47:51,552 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6660389202762084 [2021-04-29 00:47:51,552 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1061 transitions. [2021-04-29 00:47:51,552 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1061 transitions. [2021-04-29 00:47:51,553 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:47:51,553 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1061 transitions. [2021-04-29 00:47:51,557 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 117.88888888888889) internal successors, (1061), 9 states have internal predecessors, (1061), 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) [2021-04-29 00:47:51,561 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 177.0) internal successors, (1770), 10 states have internal predecessors, (1770), 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) [2021-04-29 00:47:51,562 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 177.0) internal successors, (1770), 10 states have internal predecessors, (1770), 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) [2021-04-29 00:47:51,562 INFO L185 Difference]: Start difference. First operand has 64 places, 84 transitions, 486 flow. Second operand 9 states and 1061 transitions. [2021-04-29 00:47:51,562 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 109 transitions, 829 flow [2021-04-29 00:47:51,783 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 109 transitions, 828 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-04-29 00:47:51,786 INFO L241 Difference]: Finished difference. Result has 74 places, 83 transitions, 645 flow [2021-04-29 00:47:51,787 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=177, PETRI_DIFFERENCE_MINUEND_FLOW=485, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=84, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=60, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=645, PETRI_PLACES=74, PETRI_TRANSITIONS=83} [2021-04-29 00:47:51,787 INFO L343 CegarLoopForPetriNet]: 82 programPoint places, -8 predicate places. [2021-04-29 00:47:51,787 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:47:51,787 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 74 places, 83 transitions, 645 flow [2021-04-29 00:47:51,788 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 74 places, 83 transitions, 645 flow [2021-04-29 00:47:51,789 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 71 places, 83 transitions, 645 flow [2021-04-29 00:47:51,991 INFO L129 PetriNetUnfolder]: 535/2022 cut-off events. [2021-04-29 00:47:51,992 INFO L130 PetriNetUnfolder]: For 2999/3286 co-relation queries the response was YES. [2021-04-29 00:47:52,002 INFO L84 FinitePrefix]: Finished finitePrefix Result has 9108 conditions, 2022 events. 535/2022 cut-off events. For 2999/3286 co-relation queries the response was YES. Maximal size of possible extension queue 945. Compared 25408 event pairs, 0 based on Foata normal form. 3/593 useless extension candidates. Maximal degree in co-relation 9086. Up to 1395 conditions per place. [2021-04-29 00:47:52,032 INFO L146 LiptonReduction]: Number of co-enabled transitions 1260 [2021-04-29 00:47:52,054 INFO L158 LiptonReduction]: Checked pairs total: 930 [2021-04-29 00:47:52,055 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 00:47:52,055 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 268 [2021-04-29 00:47:52,057 INFO L480 AbstractCegarLoop]: Abstraction has has 71 places, 83 transitions, 645 flow [2021-04-29 00:47:52,057 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 109.83333333333333) internal successors, (659), 6 states have internal predecessors, (659), 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) [2021-04-29 00:47:52,057 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:47:52,057 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:47:52,057 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-04-29 00:47:52,058 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:47:52,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:47:52,058 INFO L82 PathProgramCache]: Analyzing trace with hash 965999307, now seen corresponding path program 1 times [2021-04-29 00:47:52,058 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:47:52,059 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [859931964] [2021-04-29 00:47:52,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:47:52,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:47:52,104 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:47:52,104 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 00:47:52,106 INFO L142 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-04-29 00:47:52,106 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-29 00:47:52,113 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 00:47:52,113 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [859931964] [2021-04-29 00:47:52,113 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:47:52,113 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-04-29 00:47:52,114 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [857337551] [2021-04-29 00:47:52,114 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-29 00:47:52,114 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:47:52,115 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-29 00:47:52,115 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-29 00:47:52,116 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 115 out of 177 [2021-04-29 00:47:52,116 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 83 transitions, 645 flow. Second operand has 3 states, 3 states have (on average 117.0) internal successors, (351), 3 states have internal predecessors, (351), 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) [2021-04-29 00:47:52,117 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:47:52,117 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 115 of 177 [2021-04-29 00:47:52,117 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:47:52,742 INFO L129 PetriNetUnfolder]: 1370/5270 cut-off events. [2021-04-29 00:47:52,742 INFO L130 PetriNetUnfolder]: For 22735/37579 co-relation queries the response was YES. [2021-04-29 00:47:52,778 INFO L84 FinitePrefix]: Finished finitePrefix Result has 23450 conditions, 5270 events. 1370/5270 cut-off events. For 22735/37579 co-relation queries the response was YES. Maximal size of possible extension queue 2298. Compared 77222 event pairs, 2 based on Foata normal form. 42/1405 useless extension candidates. Maximal degree in co-relation 23426. Up to 3636 conditions per place. [2021-04-29 00:47:52,800 INFO L132 encePairwiseOnDemand]: 171/177 looper letters, 7 selfloop transitions, 8 changer transitions 0/89 dead transitions. [2021-04-29 00:47:52,800 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 89 transitions, 699 flow [2021-04-29 00:47:52,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-29 00:47:52,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-29 00:47:52,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 356 transitions. [2021-04-29 00:47:52,802 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6704331450094162 [2021-04-29 00:47:52,803 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 356 transitions. [2021-04-29 00:47:52,803 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 356 transitions. [2021-04-29 00:47:52,803 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:47:52,803 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 356 transitions. [2021-04-29 00:47:52,804 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 118.66666666666667) internal successors, (356), 3 states have internal predecessors, (356), 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) [2021-04-29 00:47:52,806 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 177.0) internal successors, (708), 4 states have internal predecessors, (708), 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) [2021-04-29 00:47:52,806 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 177.0) internal successors, (708), 4 states have internal predecessors, (708), 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) [2021-04-29 00:47:52,806 INFO L185 Difference]: Start difference. First operand has 71 places, 83 transitions, 645 flow. Second operand 3 states and 356 transitions. [2021-04-29 00:47:52,807 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 89 transitions, 699 flow [2021-04-29 00:47:54,605 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 89 transitions, 509 flow, removed 44 selfloop flow, removed 8 redundant places. [2021-04-29 00:47:54,607 INFO L241 Difference]: Finished difference. Result has 67 places, 89 transitions, 525 flow [2021-04-29 00:47:54,607 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=177, PETRI_DIFFERENCE_MINUEND_FLOW=455, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=83, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=75, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=525, PETRI_PLACES=67, PETRI_TRANSITIONS=89} [2021-04-29 00:47:54,608 INFO L343 CegarLoopForPetriNet]: 82 programPoint places, -15 predicate places. [2021-04-29 00:47:54,608 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:47:54,608 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 67 places, 89 transitions, 525 flow [2021-04-29 00:47:54,608 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 67 places, 89 transitions, 525 flow [2021-04-29 00:47:54,609 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 67 places, 89 transitions, 525 flow [2021-04-29 00:47:55,016 INFO L129 PetriNetUnfolder]: 1247/5033 cut-off events. [2021-04-29 00:47:55,017 INFO L130 PetriNetUnfolder]: For 3679/3971 co-relation queries the response was YES. [2021-04-29 00:47:55,047 INFO L84 FinitePrefix]: Finished finitePrefix Result has 17848 conditions, 5033 events. 1247/5033 cut-off events. For 3679/3971 co-relation queries the response was YES. Maximal size of possible extension queue 2124. Compared 74832 event pairs, 1 based on Foata normal form. 8/1371 useless extension candidates. Maximal degree in co-relation 17827. Up to 3465 conditions per place. [2021-04-29 00:47:55,109 INFO L146 LiptonReduction]: Number of co-enabled transitions 1628 [2021-04-29 00:47:55,213 INFO L158 LiptonReduction]: Checked pairs total: 153 [2021-04-29 00:47:55,214 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 00:47:55,214 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 606 [2021-04-29 00:47:55,216 INFO L480 AbstractCegarLoop]: Abstraction has has 67 places, 89 transitions, 525 flow [2021-04-29 00:47:55,216 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 117.0) internal successors, (351), 3 states have internal predecessors, (351), 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) [2021-04-29 00:47:55,216 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:47:55,216 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:47:55,216 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-04-29 00:47:55,217 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:47:55,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:47:55,217 INFO L82 PathProgramCache]: Analyzing trace with hash 873907739, now seen corresponding path program 1 times [2021-04-29 00:47:55,217 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:47:55,218 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1944573069] [2021-04-29 00:47:55,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:47:55,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:47:55,261 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:47:55,261 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 00:47:55,262 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:47:55,262 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:47:55,266 INFO L142 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-04-29 00:47:55,266 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-29 00:47:55,273 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 00:47:55,273 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1944573069] [2021-04-29 00:47:55,273 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:47:55,273 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-29 00:47:55,273 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1151147529] [2021-04-29 00:47:55,274 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-29 00:47:55,274 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:47:55,275 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-29 00:47:55,275 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-04-29 00:47:55,276 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 177 [2021-04-29 00:47:55,277 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 89 transitions, 525 flow. Second operand has 4 states, 4 states have (on average 112.75) internal successors, (451), 4 states have internal predecessors, (451), 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) [2021-04-29 00:47:55,277 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:47:55,277 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 177 [2021-04-29 00:47:55,277 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:47:55,958 INFO L129 PetriNetUnfolder]: 1485/6175 cut-off events. [2021-04-29 00:47:55,958 INFO L130 PetriNetUnfolder]: For 4655/4997 co-relation queries the response was YES. [2021-04-29 00:47:55,995 INFO L84 FinitePrefix]: Finished finitePrefix Result has 21760 conditions, 6175 events. 1485/6175 cut-off events. For 4655/4997 co-relation queries the response was YES. Maximal size of possible extension queue 2496. Compared 94369 event pairs, 1 based on Foata normal form. 46/1651 useless extension candidates. Maximal degree in co-relation 21737. Up to 4140 conditions per place. [2021-04-29 00:47:56,002 INFO L132 encePairwiseOnDemand]: 170/177 looper letters, 0 selfloop transitions, 0 changer transitions 99/99 dead transitions. [2021-04-29 00:47:56,002 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 99 transitions, 631 flow [2021-04-29 00:47:56,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-04-29 00:47:56,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-04-29 00:47:56,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 572 transitions. [2021-04-29 00:47:56,005 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6463276836158192 [2021-04-29 00:47:56,006 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 572 transitions. [2021-04-29 00:47:56,006 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 572 transitions. [2021-04-29 00:47:56,006 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:47:56,006 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 572 transitions. [2021-04-29 00:47:56,008 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 114.4) internal successors, (572), 5 states have internal predecessors, (572), 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) [2021-04-29 00:47:56,010 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 177.0) internal successors, (1062), 6 states have internal predecessors, (1062), 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) [2021-04-29 00:47:56,011 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 177.0) internal successors, (1062), 6 states have internal predecessors, (1062), 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) [2021-04-29 00:47:56,011 INFO L185 Difference]: Start difference. First operand has 67 places, 89 transitions, 525 flow. Second operand 5 states and 572 transitions. [2021-04-29 00:47:56,011 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 99 transitions, 631 flow [2021-04-29 00:47:57,428 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 99 transitions, 549 flow, removed 0 selfloop flow, removed 7 redundant places. [2021-04-29 00:47:57,429 INFO L241 Difference]: Finished difference. Result has 63 places, 0 transitions, 0 flow [2021-04-29 00:47:57,429 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=177, PETRI_DIFFERENCE_MINUEND_FLOW=437, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=88, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=88, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=63, PETRI_TRANSITIONS=0} [2021-04-29 00:47:57,430 INFO L343 CegarLoopForPetriNet]: 82 programPoint places, -19 predicate places. [2021-04-29 00:47:57,430 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:47:57,430 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 63 places, 0 transitions, 0 flow [2021-04-29 00:47:57,430 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 63 places, 0 transitions, 0 flow [2021-04-29 00:47:57,430 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 0 places, 0 transitions, 0 flow [2021-04-29 00:47:57,431 INFO L129 PetriNetUnfolder]: 0/0 cut-off events. [2021-04-29 00:47:57,431 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 00:47:57,431 INFO L84 FinitePrefix]: Finished finitePrefix Result has 0 conditions, 0 events. 0/0 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 0. Compared 0 event pairs, 0 based on Foata normal form. 0/0 useless extension candidates. Maximal degree in co-relation 0. Up to 0 conditions per place. [2021-04-29 00:47:57,431 INFO L146 LiptonReduction]: Number of co-enabled transitions 0 [2021-04-29 00:47:57,431 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 00:47:57,432 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 00:47:57,432 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 2 [2021-04-29 00:47:57,433 INFO L480 AbstractCegarLoop]: Abstraction has has 0 places, 0 transitions, 0 flow [2021-04-29 00:47:57,434 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 112.75) internal successors, (451), 4 states have internal predecessors, (451), 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) [2021-04-29 00:47:57,434 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-04-29 00:47:57,438 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.04 12:47:57 BasicIcfg [2021-04-29 00:47:57,439 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-04-29 00:47:57,440 INFO L168 Benchmark]: Toolchain (without parser) took 24021.44 ms. Allocated memory was 302.0 MB in the beginning and 685.8 MB in the end (delta: 383.8 MB). Free memory was 277.2 MB in the beginning and 325.4 MB in the end (delta: -48.2 MB). Peak memory consumption was 337.1 MB. Max. memory is 16.0 GB. [2021-04-29 00:47:57,441 INFO L168 Benchmark]: CDTParser took 0.88 ms. Allocated memory is still 302.0 MB. Free memory is still 272.2 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-04-29 00:47:57,441 INFO L168 Benchmark]: CACSL2BoogieTranslator took 766.94 ms. Allocated memory is still 302.0 MB. Free memory was 274.0 MB in the beginning and 282.4 MB in the end (delta: -8.3 MB). Peak memory consumption was 35.0 MB. Max. memory is 16.0 GB. [2021-04-29 00:47:57,442 INFO L168 Benchmark]: Boogie Procedure Inliner took 99.30 ms. Allocated memory is still 302.0 MB. Free memory was 282.4 MB in the beginning and 280.3 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-04-29 00:47:57,442 INFO L168 Benchmark]: Boogie Preprocessor took 45.34 ms. Allocated memory is still 302.0 MB. Free memory was 280.3 MB in the beginning and 279.4 MB in the end (delta: 902.7 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-04-29 00:47:57,443 INFO L168 Benchmark]: RCFGBuilder took 518.59 ms. Allocated memory is still 302.0 MB. Free memory was 279.4 MB in the beginning and 256.3 MB in the end (delta: 23.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. [2021-04-29 00:47:57,444 INFO L168 Benchmark]: TraceAbstraction took 22535.06 ms. Allocated memory was 302.0 MB in the beginning and 685.8 MB in the end (delta: 383.8 MB). Free memory was 256.3 MB in the beginning and 325.4 MB in the end (delta: -69.1 MB). Peak memory consumption was 316.8 MB. Max. memory is 16.0 GB. [2021-04-29 00:47:57,447 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.88 ms. Allocated memory is still 302.0 MB. Free memory is still 272.2 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 766.94 ms. Allocated memory is still 302.0 MB. Free memory was 274.0 MB in the beginning and 282.4 MB in the end (delta: -8.3 MB). Peak memory consumption was 35.0 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 99.30 ms. Allocated memory is still 302.0 MB. Free memory was 282.4 MB in the beginning and 280.3 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 45.34 ms. Allocated memory is still 302.0 MB. Free memory was 280.3 MB in the beginning and 279.4 MB in the end (delta: 902.7 kB). There was no memory consumed. Max. memory is 16.0 GB. * RCFGBuilder took 518.59 ms. Allocated memory is still 302.0 MB. Free memory was 279.4 MB in the beginning and 256.3 MB in the end (delta: 23.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. * TraceAbstraction took 22535.06 ms. Allocated memory was 302.0 MB in the beginning and 685.8 MB in the end (delta: 383.8 MB). Free memory was 256.3 MB in the beginning and 325.4 MB in the end (delta: -69.1 MB). Peak memory consumption was 316.8 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 10756.8ms, 69 PlacesBefore, 82 PlacesAfterwards, 60 TransitionsBefore, 72 TransitionsAfterwards, 864 CoEnabledTransitionPairs, 7 FixpointIterations, 56 TrivialSequentialCompositions, 45 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 1 ChoiceCompositions, 102 TotalNumberOfCompositions, 6832 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2314, positive: 2108, positive conditional: 2108, positive unconditional: 0, negative: 206, negative conditional: 206, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1068, positive: 993, positive conditional: 0, positive unconditional: 993, negative: 75, negative conditional: 0, negative unconditional: 75, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1068, positive: 993, positive conditional: 0, positive unconditional: 993, negative: 75, negative conditional: 0, negative unconditional: 75, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1068, positive: 962, positive conditional: 0, positive unconditional: 962, negative: 106, negative conditional: 0, negative unconditional: 106, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 106, positive: 31, positive conditional: 0, positive unconditional: 31, negative: 75, negative conditional: 0, negative unconditional: 75, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 451, positive: 121, positive conditional: 0, positive unconditional: 121, negative: 330, negative conditional: 0, negative unconditional: 330, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 2314, positive: 1115, positive conditional: 1115, positive unconditional: 0, negative: 131, negative conditional: 131, negative unconditional: 0, unknown: 1068, unknown conditional: 1068, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1061, Positive cache size: 986, Positive conditional cache size: 986, Positive unconditional cache size: 0, Negative cache size: 75, Negative conditional cache size: 75, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 23.8ms, 82 PlacesBefore, 47 PlacesAfterwards, 39 TransitionsBefore, 39 TransitionsAfterwards, 822 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 476 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 195, positive: 178, positive conditional: 178, positive unconditional: 0, negative: 17, negative conditional: 17, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 35, positive: 33, positive conditional: 3, positive unconditional: 30, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 35, positive: 33, positive conditional: 3, positive unconditional: 30, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 35, positive: 33, positive conditional: 0, positive unconditional: 33, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 2, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 5, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 195, positive: 145, positive conditional: 145, positive unconditional: 0, negative: 15, negative conditional: 15, negative unconditional: 0, unknown: 35, unknown conditional: 35, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1096, Positive cache size: 1019, Positive conditional cache size: 1019, Positive unconditional cache size: 0, Negative cache size: 77, Negative conditional cache size: 77, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 388.2ms, 53 PlacesBefore, 53 PlacesAfterwards, 61 TransitionsBefore, 61 TransitionsAfterwards, 1030 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 865 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 639, positive: 620, positive conditional: 620, positive unconditional: 0, negative: 19, negative conditional: 19, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 120, positive: 120, positive conditional: 68, positive unconditional: 52, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 120, positive: 120, positive conditional: 68, positive unconditional: 52, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 120, positive: 120, positive conditional: 0, positive unconditional: 120, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 639, positive: 500, positive conditional: 500, positive unconditional: 0, negative: 19, negative conditional: 19, negative unconditional: 0, unknown: 120, unknown conditional: 120, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1216, Positive cache size: 1139, Positive conditional cache size: 1139, Positive unconditional cache size: 0, Negative cache size: 77, Negative conditional cache size: 77, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 451.9ms, 62 PlacesBefore, 62 PlacesAfterwards, 83 TransitionsBefore, 83 TransitionsAfterwards, 1256 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 1586 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 345, positive: 317, positive conditional: 317, positive unconditional: 0, negative: 28, negative conditional: 28, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 66, positive: 63, positive conditional: 44, positive unconditional: 19, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 66, positive: 63, positive conditional: 44, positive unconditional: 19, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 66, positive: 63, positive conditional: 0, positive unconditional: 63, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 3, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 16, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 16, negative conditional: 0, negative unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 345, positive: 254, positive conditional: 254, positive unconditional: 0, negative: 25, negative conditional: 25, negative unconditional: 0, unknown: 66, unknown conditional: 66, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1282, Positive cache size: 1202, Positive conditional cache size: 1202, Positive unconditional cache size: 0, Negative cache size: 80, Negative conditional cache size: 80, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 608.1ms, 64 PlacesBefore, 64 PlacesAfterwards, 84 TransitionsBefore, 84 TransitionsAfterwards, 1308 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 984 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 406, positive: 388, positive conditional: 388, positive unconditional: 0, negative: 18, negative conditional: 18, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 55, positive: 55, positive conditional: 46, positive unconditional: 9, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 55, positive: 55, positive conditional: 46, positive unconditional: 9, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 55, positive: 55, positive conditional: 0, positive unconditional: 55, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 406, positive: 333, positive conditional: 333, positive unconditional: 0, negative: 18, negative conditional: 18, negative unconditional: 0, unknown: 55, unknown conditional: 55, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1337, Positive cache size: 1257, Positive conditional cache size: 1257, Positive unconditional cache size: 0, Negative cache size: 80, Negative conditional cache size: 80, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 266.9ms, 74 PlacesBefore, 71 PlacesAfterwards, 83 TransitionsBefore, 83 TransitionsAfterwards, 1260 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 930 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 310, positive: 292, positive conditional: 292, positive unconditional: 0, negative: 18, negative conditional: 18, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 49, positive: 49, positive conditional: 48, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 49, positive: 49, positive conditional: 48, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 49, positive: 49, positive conditional: 0, positive unconditional: 49, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 310, positive: 243, positive conditional: 243, positive unconditional: 0, negative: 18, negative conditional: 18, negative unconditional: 0, unknown: 49, unknown conditional: 49, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1386, Positive cache size: 1306, Positive conditional cache size: 1306, Positive unconditional cache size: 0, Negative cache size: 80, Negative conditional cache size: 80, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 605.6ms, 67 PlacesBefore, 67 PlacesAfterwards, 89 TransitionsBefore, 89 TransitionsAfterwards, 1628 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 153 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 90, positive: 87, positive conditional: 87, positive unconditional: 0, negative: 3, negative conditional: 3, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 13, positive: 12, positive conditional: 11, positive unconditional: 1, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 13, positive: 12, positive conditional: 11, positive unconditional: 1, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 13, positive: 12, positive conditional: 0, positive unconditional: 12, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 3, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 90, positive: 75, positive conditional: 75, positive unconditional: 0, negative: 2, negative conditional: 2, negative unconditional: 0, unknown: 13, unknown conditional: 13, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1399, Positive cache size: 1318, Positive conditional cache size: 1318, Positive unconditional cache size: 0, Negative cache size: 81, Negative conditional cache size: 81, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.4ms, 63 PlacesBefore, 0 PlacesAfterwards, 0 TransitionsBefore, 0 TransitionsAfterwards, 0 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1399, Positive cache size: 1318, Positive conditional cache size: 1318, Positive unconditional cache size: 0, Negative cache size: 81, Negative conditional cache size: 81, Negative unconditional cache size: 0 - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 74 locations, 1 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 12.5ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 22357.6ms, OverallIterations: 7, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 8184.6ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 10905.0ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 59 SDtfs, 66 SDslu, 21 SDs, 0 SdLazy, 344 SolverSat, 113 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 350.4ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 26 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 118.0ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=645occurred in iteration=5, InterpolantAutomatonStates: 36, 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: 21.6ms SsaConstructionTime, 183.9ms SatisfiabilityAnalysisTime, 476.7ms InterpolantComputationTime, 90 NumberOfCodeBlocks, 90 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 83 ConstructedInterpolants, 0 QuantifiedInterpolants, 299 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! Received shutdown request...