/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/thin001_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-6f4246e9f5583d222ebb38ff8175c901f3a528f0-6f4246e [2021-04-29 00:53:54,100 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-04-29 00:53:54,105 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-04-29 00:53:54,160 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-04-29 00:53:54,195 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-04-29 00:53:54,196 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-04-29 00:53:54,199 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-04-29 00:53:54,201 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-04-29 00:53:54,205 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-04-29 00:53:54,208 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-04-29 00:53:54,214 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-04-29 00:53:54,219 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-04-29 00:53:54,221 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-04-29 00:53:54,224 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-04-29 00:53:54,226 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-04-29 00:53:54,230 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-04-29 00:53:54,240 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-04-29 00:53:54,252 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-04-29 00:53:54,253 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-04-29 00:53:54,254 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-04-29 00:53:54,255 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 00:53:54,315 INFO L113 SettingsManager]: Loading preferences was successful [2021-04-29 00:53:54,316 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-04-29 00:53:54,321 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-04-29 00:53:54,322 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-04-29 00:53:54,322 INFO L138 SettingsManager]: * Use SBE=true [2021-04-29 00:53:54,322 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-04-29 00:53:54,322 INFO L138 SettingsManager]: * sizeof long=4 [2021-04-29 00:53:54,323 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-04-29 00:53:54,323 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-04-29 00:53:54,323 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-04-29 00:53:54,324 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-04-29 00:53:54,325 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-04-29 00:53:54,325 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-04-29 00:53:54,325 INFO L138 SettingsManager]: * sizeof long double=12 [2021-04-29 00:53:54,325 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-04-29 00:53:54,325 INFO L138 SettingsManager]: * Use constant arrays=true [2021-04-29 00:53:54,326 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-04-29 00:53:54,326 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-04-29 00:53:54,326 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-04-29 00:53:54,326 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-04-29 00:53:54,326 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-04-29 00:53:54,327 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-04-29 00:53:54,327 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-04-29 00:53:54,327 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-04-29 00:53:54,327 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-04-29 00:53:54,328 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-04-29 00:53:54,328 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-04-29 00:53:54,328 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=SEMANTIC_BASED_MOVER_CHECK_WITH_PREDICATES [2021-04-29 00:53:54,328 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-04-29 00:53:54,328 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-04-29 00:53:54,329 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-04-29 00:53:54,767 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-04-29 00:53:54,797 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-04-29 00:53:54,801 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-04-29 00:53:54,803 INFO L271 PluginConnector]: Initializing CDTParser... [2021-04-29 00:53:54,803 INFO L275 PluginConnector]: CDTParser initialized [2021-04-29 00:53:54,805 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/thin001_tso.opt.i [2021-04-29 00:53:54,889 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c10ac0c84/f0b39efa7f764d0ba4bdf7ee163b33b9/FLAG364431efd [2021-04-29 00:53:55,694 INFO L306 CDTParser]: Found 1 translation units. [2021-04-29 00:53:55,697 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/thin001_tso.opt.i [2021-04-29 00:53:55,714 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c10ac0c84/f0b39efa7f764d0ba4bdf7ee163b33b9/FLAG364431efd [2021-04-29 00:53:55,915 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c10ac0c84/f0b39efa7f764d0ba4bdf7ee163b33b9 [2021-04-29 00:53:55,927 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-04-29 00:53:55,989 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-04-29 00:53:55,992 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-04-29 00:53:55,993 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-04-29 00:53:55,997 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-04-29 00:53:55,999 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.04 12:53:55" (1/1) ... [2021-04-29 00:53:56,003 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a5ff9b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:53:56, skipping insertion in model container [2021-04-29 00:53:56,004 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.04 12:53:55" (1/1) ... [2021-04-29 00:53:56,012 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-04-29 00:53:56,081 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-04-29 00:53:56,291 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/thin001_tso.opt.i[949,962] [2021-04-29 00:53:56,506 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-29 00:53:56,520 INFO L203 MainTranslator]: Completed pre-run [2021-04-29 00:53:56,533 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/thin001_tso.opt.i[949,962] [2021-04-29 00:53:56,611 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-29 00:53:56,705 INFO L208 MainTranslator]: Completed translation [2021-04-29 00:53:56,705 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:53:56 WrapperNode [2021-04-29 00:53:56,705 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-04-29 00:53:56,707 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-04-29 00:53:56,707 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-04-29 00:53:56,707 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-04-29 00:53:56,716 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:53:56" (1/1) ... [2021-04-29 00:53:56,758 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:53:56" (1/1) ... [2021-04-29 00:53:56,799 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-04-29 00:53:56,801 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-04-29 00:53:56,801 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-04-29 00:53:56,802 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-04-29 00:53:56,811 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:53:56" (1/1) ... [2021-04-29 00:53:56,811 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:53:56" (1/1) ... [2021-04-29 00:53:56,822 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:53:56" (1/1) ... [2021-04-29 00:53:56,822 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:53:56" (1/1) ... [2021-04-29 00:53:56,839 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:53:56" (1/1) ... [2021-04-29 00:53:56,844 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:53:56" (1/1) ... [2021-04-29 00:53:56,849 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:53:56" (1/1) ... [2021-04-29 00:53:56,857 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-04-29 00:53:56,858 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-04-29 00:53:56,858 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-04-29 00:53:56,858 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-04-29 00:53:56,861 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:53:56" (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 00:53:56,952 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-04-29 00:53:56,954 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-04-29 00:53:56,954 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-04-29 00:53:56,955 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-04-29 00:53:56,956 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-04-29 00:53:56,956 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-04-29 00:53:56,957 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-04-29 00:53:56,957 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-04-29 00:53:56,957 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-04-29 00:53:56,957 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-04-29 00:53:56,958 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-04-29 00:53:56,958 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-04-29 00:53:56,958 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-04-29 00:53:56,958 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-04-29 00:53:56,960 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 00:53:57,382 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-04-29 00:53:57,382 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-04-29 00:53:57,385 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.04 12:53:57 BoogieIcfgContainer [2021-04-29 00:53:57,386 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-04-29 00:53:57,389 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-04-29 00:53:57,389 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-04-29 00:53:57,394 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-04-29 00:53:57,394 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.04 12:53:55" (1/3) ... [2021-04-29 00:53:57,396 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69e7ab30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.04 12:53:57, skipping insertion in model container [2021-04-29 00:53:57,396 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:53:56" (2/3) ... [2021-04-29 00:53:57,397 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69e7ab30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.04 12:53:57, skipping insertion in model container [2021-04-29 00:53:57,397 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.04 12:53:57" (3/3) ... [2021-04-29 00:53:57,399 INFO L111 eAbstractionObserver]: Analyzing ICFG thin001_tso.opt.i [2021-04-29 00:53:57,413 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-04-29 00:53:57,420 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-04-29 00:53:57,421 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-04-29 00:53:57,490 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:53:57,490 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:53:57,490 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:53:57,491 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:53:57,491 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:53:57,491 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:53:57,491 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:53:57,492 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:53:57,492 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:53:57,493 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:53:57,493 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:53:57,493 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:53:57,494 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:53:57,494 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:53:57,495 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:53:57,495 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:53:57,495 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:53:57,495 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:53:57,496 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:53:57,496 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:53:57,496 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:53:57,497 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:53:57,497 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:53:57,497 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:53:57,498 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:53:57,498 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:53:57,498 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:53:57,498 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:53:57,499 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:53:57,499 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:53:57,499 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:53:57,499 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:53:57,500 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:53:57,500 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:53:57,500 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:53:57,500 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:53:57,503 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:53:57,504 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:53:57,504 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:53:57,505 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:53:57,510 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:53:57,510 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:53:57,511 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:53:57,511 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:53:57,513 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:53:57,513 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:53:57,514 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:53:57,514 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:53:57,516 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-04-29 00:53:57,548 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-04-29 00:53:57,583 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-04-29 00:53:57,583 INFO L377 AbstractCegarLoop]: Hoare is false [2021-04-29 00:53:57,583 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-04-29 00:53:57,583 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-04-29 00:53:57,584 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-04-29 00:53:57,584 INFO L381 AbstractCegarLoop]: Difference is false [2021-04-29 00:53:57,584 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-04-29 00:53:57,584 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-04-29 00:53:57,601 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 84 places, 76 transitions, 167 flow [2021-04-29 00:53:57,679 INFO L129 PetriNetUnfolder]: 2/73 cut-off events. [2021-04-29 00:53:57,679 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 00:53:57,690 INFO L84 FinitePrefix]: Finished finitePrefix Result has 83 conditions, 73 events. 2/73 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 54 event pairs, 0 based on Foata normal form. 0/70 useless extension candidates. Maximal degree in co-relation 56. Up to 2 conditions per place. [2021-04-29 00:53:57,693 INFO L82 GeneralOperation]: Start removeDead. Operand has 84 places, 76 transitions, 167 flow [2021-04-29 00:53:57,710 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 70 places, 61 transitions, 131 flow [2021-04-29 00:53:57,713 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:53:57,731 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 70 places, 61 transitions, 131 flow [2021-04-29 00:53:57,735 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 70 places, 61 transitions, 131 flow [2021-04-29 00:53:57,737 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 70 places, 61 transitions, 131 flow [2021-04-29 00:53:57,757 INFO L129 PetriNetUnfolder]: 1/61 cut-off events. [2021-04-29 00:53:57,757 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 00:53:57,758 INFO L84 FinitePrefix]: Finished finitePrefix Result has 71 conditions, 61 events. 1/61 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 45 event pairs, 0 based on Foata normal form. 0/60 useless extension candidates. Maximal degree in co-relation 44. Up to 2 conditions per place. [2021-04-29 00:53:57,761 INFO L146 LiptonReduction]: Number of co-enabled transitions 864 [2021-04-29 00:54:01,776 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2021-04-29 00:54:01,946 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2021-04-29 00:54:02,103 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 56 [2021-04-29 00:54:02,247 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 56 [2021-04-29 00:54:02,653 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 54 [2021-04-29 00:54:04,529 WARN L205 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 73 [2021-04-29 00:54:04,803 WARN L205 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 73 [2021-04-29 00:54:05,814 WARN L205 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 78 [2021-04-29 00:54:06,112 WARN L205 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 78 [2021-04-29 00:54:06,241 INFO L158 LiptonReduction]: Checked pairs total: 5406 [2021-04-29 00:54:06,241 INFO L160 LiptonReduction]: Total number of compositions: 91 [2021-04-29 00:54:06,246 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 8535 [2021-04-29 00:54:06,267 INFO L129 PetriNetUnfolder]: 0/59 cut-off events. [2021-04-29 00:54:06,268 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 00:54:06,268 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:54:06,269 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:54:06,269 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:54:06,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:54:06,276 INFO L82 PathProgramCache]: Analyzing trace with hash -260371519, now seen corresponding path program 1 times [2021-04-29 00:54:06,287 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:54:06,288 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [954412847] [2021-04-29 00:54:06,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:54:06,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:54:06,692 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:54:06,693 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:54:06,700 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 00:54:06,701 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [954412847] [2021-04-29 00:54:06,702 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:54:06,702 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-29 00:54:06,703 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [532756965] [2021-04-29 00:54:06,712 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-29 00:54:06,712 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:54:06,724 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-29 00:54:06,727 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-29 00:54:06,729 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 128 out of 167 [2021-04-29 00:54:06,734 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 70 transitions, 149 flow. Second operand has 3 states, 3 states have (on average 128.66666666666666) internal successors, (386), 3 states have internal predecessors, (386), 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 00:54:06,734 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:54:06,734 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 128 of 167 [2021-04-29 00:54:06,735 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:54:06,810 INFO L129 PetriNetUnfolder]: 5/80 cut-off events. [2021-04-29 00:54:06,811 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 00:54:06,811 INFO L84 FinitePrefix]: Finished finitePrefix Result has 122 conditions, 80 events. 5/80 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 391 event pairs, 0 based on Foata normal form. 0/25 useless extension candidates. Maximal degree in co-relation 77. Up to 18 conditions per place. [2021-04-29 00:54:06,813 INFO L132 encePairwiseOnDemand]: 151/167 looper letters, 1 selfloop transitions, 2 changer transitions 50/75 dead transitions. [2021-04-29 00:54:06,813 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 75 transitions, 211 flow [2021-04-29 00:54:06,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-29 00:54:06,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-29 00:54:06,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 412 transitions. [2021-04-29 00:54:06,831 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8223552894211577 [2021-04-29 00:54:06,831 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 412 transitions. [2021-04-29 00:54:06,832 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 412 transitions. [2021-04-29 00:54:06,834 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:54:06,837 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 412 transitions. [2021-04-29 00:54:06,842 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 137.33333333333334) internal successors, (412), 3 states have internal predecessors, (412), 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 00:54:06,850 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 167.0) internal successors, (668), 4 states have internal predecessors, (668), 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 00:54:06,851 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 167.0) internal successors, (668), 4 states have internal predecessors, (668), 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 00:54:06,854 INFO L185 Difference]: Start difference. First operand has 80 places, 70 transitions, 149 flow. Second operand 3 states and 412 transitions. [2021-04-29 00:54:06,855 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 75 transitions, 211 flow [2021-04-29 00:54:06,858 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 75 transitions, 208 flow, removed 0 selfloop flow, removed 3 redundant places. [2021-04-29 00:54:06,860 INFO L241 Difference]: Finished difference. Result has 80 places, 25 transitions, 64 flow [2021-04-29 00:54:06,863 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=167, PETRI_DIFFERENCE_MINUEND_FLOW=146, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=70, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=64, PETRI_PLACES=80, PETRI_TRANSITIONS=25} [2021-04-29 00:54:06,864 INFO L343 CegarLoopForPetriNet]: 80 programPoint places, 0 predicate places. [2021-04-29 00:54:06,865 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:54:06,865 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 80 places, 25 transitions, 64 flow [2021-04-29 00:54:06,865 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 80 places, 25 transitions, 64 flow [2021-04-29 00:54:06,866 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 35 places, 25 transitions, 64 flow [2021-04-29 00:54:06,874 INFO L129 PetriNetUnfolder]: 0/25 cut-off events. [2021-04-29 00:54:06,874 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 00:54:06,874 INFO L84 FinitePrefix]: Finished finitePrefix Result has 38 conditions, 25 events. 0/25 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 51 event pairs, 0 based on Foata normal form. 0/17 useless extension candidates. Maximal degree in co-relation 0. Up to 3 conditions per place. [2021-04-29 00:54:06,875 INFO L146 LiptonReduction]: Number of co-enabled transitions 330 [2021-04-29 00:54:06,894 INFO L158 LiptonReduction]: Checked pairs total: 357 [2021-04-29 00:54:06,894 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 00:54:06,894 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 29 [2021-04-29 00:54:06,897 INFO L480 AbstractCegarLoop]: Abstraction has has 35 places, 25 transitions, 64 flow [2021-04-29 00:54:06,897 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 128.66666666666666) internal successors, (386), 3 states have internal predecessors, (386), 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 00:54:06,897 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:54:06,898 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:54:06,898 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-04-29 00:54:06,898 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:54:06,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:54:06,899 INFO L82 PathProgramCache]: Analyzing trace with hash 518397480, now seen corresponding path program 1 times [2021-04-29 00:54:06,899 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:54:06,899 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1826949468] [2021-04-29 00:54:06,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:54:06,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:54:06,962 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:54:06,963 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:54:06,975 INFO L142 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-04-29 00:54:06,976 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-29 00:54:06,983 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 00:54:06,984 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1826949468] [2021-04-29 00:54:06,984 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:54:06,984 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-04-29 00:54:06,985 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1036556507] [2021-04-29 00:54:06,986 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-29 00:54:06,986 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:54:06,987 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-29 00:54:06,987 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-04-29 00:54:06,989 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 108 out of 167 [2021-04-29 00:54:06,990 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 25 transitions, 64 flow. Second operand has 4 states, 4 states have (on average 108.75) internal successors, (435), 4 states have internal predecessors, (435), 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 00:54:06,990 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:54:06,991 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 108 of 167 [2021-04-29 00:54:06,991 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:54:07,038 INFO L129 PetriNetUnfolder]: 14/88 cut-off events. [2021-04-29 00:54:07,038 INFO L130 PetriNetUnfolder]: For 11/11 co-relation queries the response was YES. [2021-04-29 00:54:07,039 INFO L84 FinitePrefix]: Finished finitePrefix Result has 152 conditions, 88 events. 14/88 cut-off events. For 11/11 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 438 event pairs, 1 based on Foata normal form. 6/68 useless extension candidates. Maximal degree in co-relation 142. Up to 15 conditions per place. [2021-04-29 00:54:07,040 INFO L132 encePairwiseOnDemand]: 161/167 looper letters, 7 selfloop transitions, 7 changer transitions 0/33 dead transitions. [2021-04-29 00:54:07,040 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 33 transitions, 116 flow [2021-04-29 00:54:07,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-04-29 00:54:07,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-04-29 00:54:07,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 556 transitions. [2021-04-29 00:54:07,045 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.665868263473054 [2021-04-29 00:54:07,045 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 556 transitions. [2021-04-29 00:54:07,045 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 556 transitions. [2021-04-29 00:54:07,046 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:54:07,046 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 556 transitions. [2021-04-29 00:54:07,048 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 111.2) internal successors, (556), 5 states have internal predecessors, (556), 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 00:54:07,052 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 167.0) internal successors, (1002), 6 states have internal predecessors, (1002), 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 00:54:07,053 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 167.0) internal successors, (1002), 6 states have internal predecessors, (1002), 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 00:54:07,054 INFO L185 Difference]: Start difference. First operand has 35 places, 25 transitions, 64 flow. Second operand 5 states and 556 transitions. [2021-04-29 00:54:07,054 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 33 transitions, 116 flow [2021-04-29 00:54:07,054 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 33 transitions, 108 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-04-29 00:54:07,056 INFO L241 Difference]: Finished difference. Result has 40 places, 30 transitions, 108 flow [2021-04-29 00:54:07,056 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=167, PETRI_DIFFERENCE_MINUEND_FLOW=60, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=108, PETRI_PLACES=40, PETRI_TRANSITIONS=30} [2021-04-29 00:54:07,057 INFO L343 CegarLoopForPetriNet]: 80 programPoint places, -40 predicate places. [2021-04-29 00:54:07,057 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:54:07,057 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 40 places, 30 transitions, 108 flow [2021-04-29 00:54:07,058 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 40 places, 30 transitions, 108 flow [2021-04-29 00:54:07,058 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 40 places, 30 transitions, 108 flow [2021-04-29 00:54:07,069 INFO L129 PetriNetUnfolder]: 9/79 cut-off events. [2021-04-29 00:54:07,069 INFO L130 PetriNetUnfolder]: For 20/23 co-relation queries the response was YES. [2021-04-29 00:54:07,070 INFO L84 FinitePrefix]: Finished finitePrefix Result has 151 conditions, 79 events. 9/79 cut-off events. For 20/23 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 393 event pairs, 3 based on Foata normal form. 0/52 useless extension candidates. Maximal degree in co-relation 140. Up to 18 conditions per place. [2021-04-29 00:54:07,072 INFO L146 LiptonReduction]: Number of co-enabled transitions 406 [2021-04-29 00:54:07,083 INFO L158 LiptonReduction]: Checked pairs total: 250 [2021-04-29 00:54:07,083 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 00:54:07,083 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 26 [2021-04-29 00:54:07,085 INFO L480 AbstractCegarLoop]: Abstraction has has 40 places, 30 transitions, 108 flow [2021-04-29 00:54:07,086 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 108.75) internal successors, (435), 4 states have internal predecessors, (435), 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 00:54:07,086 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:54:07,086 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:54:07,086 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-04-29 00:54:07,086 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:54:07,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:54:07,087 INFO L82 PathProgramCache]: Analyzing trace with hash -1109572132, now seen corresponding path program 1 times [2021-04-29 00:54:07,087 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:54:07,087 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [461464106] [2021-04-29 00:54:07,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:54:07,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:54:07,141 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:54:07,141 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:54:07,144 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:54:07,144 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:54:07,148 INFO L142 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-04-29 00:54:07,149 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-29 00:54:07,157 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 00:54:07,157 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [461464106] [2021-04-29 00:54:07,158 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:54:07,158 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-29 00:54:07,158 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2096397717] [2021-04-29 00:54:07,158 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-04-29 00:54:07,159 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:54:07,159 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-04-29 00:54:07,160 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-04-29 00:54:07,165 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 108 out of 167 [2021-04-29 00:54:07,166 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 30 transitions, 108 flow. Second operand has 5 states, 5 states have (on average 108.8) internal successors, (544), 5 states have internal predecessors, (544), 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 00:54:07,166 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:54:07,166 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 108 of 167 [2021-04-29 00:54:07,166 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:54:07,198 INFO L129 PetriNetUnfolder]: 9/88 cut-off events. [2021-04-29 00:54:07,198 INFO L130 PetriNetUnfolder]: For 74/112 co-relation queries the response was YES. [2021-04-29 00:54:07,199 INFO L84 FinitePrefix]: Finished finitePrefix Result has 193 conditions, 88 events. 9/88 cut-off events. For 74/112 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 466 event pairs, 0 based on Foata normal form. 7/65 useless extension candidates. Maximal degree in co-relation 180. Up to 19 conditions per place. [2021-04-29 00:54:07,199 INFO L132 encePairwiseOnDemand]: 163/167 looper letters, 7 selfloop transitions, 3 changer transitions 5/33 dead transitions. [2021-04-29 00:54:07,200 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 33 transitions, 153 flow [2021-04-29 00:54:07,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-04-29 00:54:07,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-04-29 00:54:07,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 443 transitions. [2021-04-29 00:54:07,202 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6631736526946108 [2021-04-29 00:54:07,202 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 443 transitions. [2021-04-29 00:54:07,202 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 443 transitions. [2021-04-29 00:54:07,203 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:54:07,203 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 443 transitions. [2021-04-29 00:54:07,205 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 110.75) internal successors, (443), 4 states have internal predecessors, (443), 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 00:54:07,207 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 167.0) internal successors, (835), 5 states have internal predecessors, (835), 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 00:54:07,208 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 167.0) internal successors, (835), 5 states have internal predecessors, (835), 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 00:54:07,208 INFO L185 Difference]: Start difference. First operand has 40 places, 30 transitions, 108 flow. Second operand 4 states and 443 transitions. [2021-04-29 00:54:07,208 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 33 transitions, 153 flow [2021-04-29 00:54:07,210 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 33 transitions, 150 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-04-29 00:54:07,211 INFO L241 Difference]: Finished difference. Result has 44 places, 26 transitions, 100 flow [2021-04-29 00:54:07,211 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=167, PETRI_DIFFERENCE_MINUEND_FLOW=105, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=100, PETRI_PLACES=44, PETRI_TRANSITIONS=26} [2021-04-29 00:54:07,212 INFO L343 CegarLoopForPetriNet]: 80 programPoint places, -36 predicate places. [2021-04-29 00:54:07,212 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:54:07,212 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 44 places, 26 transitions, 100 flow [2021-04-29 00:54:07,212 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 44 places, 26 transitions, 100 flow [2021-04-29 00:54:07,213 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 42 places, 26 transitions, 100 flow [2021-04-29 00:54:07,219 INFO L129 PetriNetUnfolder]: 2/37 cut-off events. [2021-04-29 00:54:07,219 INFO L130 PetriNetUnfolder]: For 19/19 co-relation queries the response was YES. [2021-04-29 00:54:07,219 INFO L84 FinitePrefix]: Finished finitePrefix Result has 86 conditions, 37 events. 2/37 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 99 event pairs, 0 based on Foata normal form. 0/27 useless extension candidates. Maximal degree in co-relation 72. Up to 8 conditions per place. [2021-04-29 00:54:07,220 INFO L146 LiptonReduction]: Number of co-enabled transitions 284 [2021-04-29 00:54:07,226 INFO L158 LiptonReduction]: Checked pairs total: 180 [2021-04-29 00:54:07,226 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 00:54:07,226 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 14 [2021-04-29 00:54:07,228 INFO L480 AbstractCegarLoop]: Abstraction has has 42 places, 26 transitions, 100 flow [2021-04-29 00:54:07,229 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 108.8) internal successors, (544), 5 states have internal predecessors, (544), 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 00:54:07,229 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:54:07,229 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:54:07,229 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-04-29 00:54:07,230 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:54:07,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:54:07,230 INFO L82 PathProgramCache]: Analyzing trace with hash 841181130, now seen corresponding path program 1 times [2021-04-29 00:54:07,230 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:54:07,231 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1667945310] [2021-04-29 00:54:07,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:54:07,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:54:07,288 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:54:07,289 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:54:07,291 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:54:07,292 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:54:07,299 INFO L142 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-04-29 00:54:07,302 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-29 00:54:07,313 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 00:54:07,314 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1667945310] [2021-04-29 00:54:07,314 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:54:07,314 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-29 00:54:07,314 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [344330521] [2021-04-29 00:54:07,315 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-04-29 00:54:07,315 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:54:07,315 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-04-29 00:54:07,315 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-04-29 00:54:07,318 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 108 out of 167 [2021-04-29 00:54:07,319 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 26 transitions, 100 flow. Second operand has 5 states, 5 states have (on average 108.8) internal successors, (544), 5 states have internal predecessors, (544), 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 00:54:07,320 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:54:07,320 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 108 of 167 [2021-04-29 00:54:07,320 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:54:07,348 INFO L129 PetriNetUnfolder]: 3/55 cut-off events. [2021-04-29 00:54:07,348 INFO L130 PetriNetUnfolder]: For 56/59 co-relation queries the response was YES. [2021-04-29 00:54:07,349 INFO L84 FinitePrefix]: Finished finitePrefix Result has 127 conditions, 55 events. 3/55 cut-off events. For 56/59 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 220 event pairs, 0 based on Foata normal form. 4/41 useless extension candidates. Maximal degree in co-relation 111. Up to 8 conditions per place. [2021-04-29 00:54:07,349 INFO L132 encePairwiseOnDemand]: 163/167 looper letters, 3 selfloop transitions, 3 changer transitions 6/29 dead transitions. [2021-04-29 00:54:07,349 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 29 transitions, 142 flow [2021-04-29 00:54:07,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-04-29 00:54:07,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-04-29 00:54:07,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 443 transitions. [2021-04-29 00:54:07,352 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6631736526946108 [2021-04-29 00:54:07,352 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 443 transitions. [2021-04-29 00:54:07,352 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 443 transitions. [2021-04-29 00:54:07,352 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:54:07,353 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 443 transitions. [2021-04-29 00:54:07,354 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 110.75) internal successors, (443), 4 states have internal predecessors, (443), 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 00:54:07,356 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 167.0) internal successors, (835), 5 states have internal predecessors, (835), 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 00:54:07,357 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 167.0) internal successors, (835), 5 states have internal predecessors, (835), 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 00:54:07,357 INFO L185 Difference]: Start difference. First operand has 42 places, 26 transitions, 100 flow. Second operand 4 states and 443 transitions. [2021-04-29 00:54:07,358 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 29 transitions, 142 flow [2021-04-29 00:54:07,359 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 29 transitions, 110 flow, removed 7 selfloop flow, removed 7 redundant places. [2021-04-29 00:54:07,360 INFO L241 Difference]: Finished difference. Result has 40 places, 23 transitions, 80 flow [2021-04-29 00:54:07,360 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=167, PETRI_DIFFERENCE_MINUEND_FLOW=76, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=80, PETRI_PLACES=40, PETRI_TRANSITIONS=23} [2021-04-29 00:54:07,361 INFO L343 CegarLoopForPetriNet]: 80 programPoint places, -40 predicate places. [2021-04-29 00:54:07,361 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:54:07,361 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 40 places, 23 transitions, 80 flow [2021-04-29 00:54:07,361 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 40 places, 23 transitions, 80 flow [2021-04-29 00:54:07,362 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 39 places, 23 transitions, 80 flow [2021-04-29 00:54:07,366 INFO L129 PetriNetUnfolder]: 0/23 cut-off events. [2021-04-29 00:54:07,366 INFO L130 PetriNetUnfolder]: For 8/8 co-relation queries the response was YES. [2021-04-29 00:54:07,366 INFO L84 FinitePrefix]: Finished finitePrefix Result has 49 conditions, 23 events. 0/23 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 31 event pairs, 0 based on Foata normal form. 0/17 useless extension candidates. Maximal degree in co-relation 0. Up to 4 conditions per place. [2021-04-29 00:54:07,367 INFO L146 LiptonReduction]: Number of co-enabled transitions 200 [2021-04-29 00:54:07,452 INFO L158 LiptonReduction]: Checked pairs total: 126 [2021-04-29 00:54:07,453 INFO L160 LiptonReduction]: Total number of compositions: 3 [2021-04-29 00:54:07,453 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 92 [2021-04-29 00:54:07,455 INFO L480 AbstractCegarLoop]: Abstraction has has 39 places, 23 transitions, 80 flow [2021-04-29 00:54:07,455 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 108.8) internal successors, (544), 5 states have internal predecessors, (544), 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 00:54:07,456 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:54:07,456 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:54:07,456 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-04-29 00:54:07,456 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:54:07,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:54:07,457 INFO L82 PathProgramCache]: Analyzing trace with hash -1387597696, now seen corresponding path program 1 times [2021-04-29 00:54:07,457 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:54:07,457 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [822088427] [2021-04-29 00:54:07,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:54:07,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:54:07,499 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:54:07,499 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:54:07,502 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:54:07,503 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:54:07,507 INFO L142 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-04-29 00:54:07,508 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-29 00:54:07,515 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 00:54:07,516 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [822088427] [2021-04-29 00:54:07,516 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:54:07,516 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-29 00:54:07,516 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [185751345] [2021-04-29 00:54:07,517 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-04-29 00:54:07,517 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:54:07,517 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-04-29 00:54:07,518 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-04-29 00:54:07,519 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 105 out of 170 [2021-04-29 00:54:07,521 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 23 transitions, 80 flow. Second operand has 5 states, 5 states have (on average 106.0) internal successors, (530), 5 states have internal predecessors, (530), 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 00:54:07,521 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:54:07,521 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 105 of 170 [2021-04-29 00:54:07,521 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:54:07,539 INFO L129 PetriNetUnfolder]: 0/22 cut-off events. [2021-04-29 00:54:07,540 INFO L130 PetriNetUnfolder]: For 52/53 co-relation queries the response was YES. [2021-04-29 00:54:07,540 INFO L84 FinitePrefix]: Finished finitePrefix Result has 53 conditions, 22 events. 0/22 cut-off events. For 52/53 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 31 event pairs, 0 based on Foata normal form. 5/20 useless extension candidates. Maximal degree in co-relation 0. Up to 4 conditions per place. [2021-04-29 00:54:07,540 INFO L132 encePairwiseOnDemand]: 164/170 looper letters, 0 selfloop transitions, 0 changer transitions 22/22 dead transitions. [2021-04-29 00:54:07,540 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 22 transitions, 86 flow [2021-04-29 00:54:07,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-04-29 00:54:07,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-04-29 00:54:07,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 430 transitions. [2021-04-29 00:54:07,543 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6323529411764706 [2021-04-29 00:54:07,543 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 430 transitions. [2021-04-29 00:54:07,543 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 430 transitions. [2021-04-29 00:54:07,544 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:54:07,544 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 430 transitions. [2021-04-29 00:54:07,545 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 107.5) internal successors, (430), 4 states have internal predecessors, (430), 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 00:54:07,547 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 170.0) internal successors, (850), 5 states have internal predecessors, (850), 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 00:54:07,548 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 170.0) internal successors, (850), 5 states have internal predecessors, (850), 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 00:54:07,548 INFO L185 Difference]: Start difference. First operand has 39 places, 23 transitions, 80 flow. Second operand 4 states and 430 transitions. [2021-04-29 00:54:07,548 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 22 transitions, 86 flow [2021-04-29 00:54:07,549 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 22 transitions, 70 flow, removed 1 selfloop flow, removed 7 redundant places. [2021-04-29 00:54:07,550 INFO L241 Difference]: Finished difference. Result has 34 places, 0 transitions, 0 flow [2021-04-29 00:54:07,550 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=170, PETRI_DIFFERENCE_MINUEND_FLOW=54, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=34, PETRI_TRANSITIONS=0} [2021-04-29 00:54:07,550 INFO L343 CegarLoopForPetriNet]: 80 programPoint places, -46 predicate places. [2021-04-29 00:54:07,550 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:54:07,551 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 34 places, 0 transitions, 0 flow [2021-04-29 00:54:07,551 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 34 places, 0 transitions, 0 flow [2021-04-29 00:54:07,551 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 0 places, 0 transitions, 0 flow [2021-04-29 00:54:07,551 INFO L129 PetriNetUnfolder]: 0/0 cut-off events. [2021-04-29 00:54:07,551 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 00:54:07,552 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 00:54:07,552 INFO L146 LiptonReduction]: Number of co-enabled transitions 0 [2021-04-29 00:54:07,552 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 00:54:07,552 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 00:54:07,552 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 2 [2021-04-29 00:54:07,554 INFO L480 AbstractCegarLoop]: Abstraction has has 0 places, 0 transitions, 0 flow [2021-04-29 00:54:07,554 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 106.0) internal successors, (530), 5 states have internal predecessors, (530), 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 00:54:07,555 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-04-29 00:54:07,559 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.04 12:54:07 BasicIcfg [2021-04-29 00:54:07,559 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-04-29 00:54:07,561 INFO L168 Benchmark]: Toolchain (without parser) took 11630.83 ms. Allocated memory was 304.1 MB in the beginning and 438.3 MB in the end (delta: 134.2 MB). Free memory was 279.2 MB in the beginning and 222.1 MB in the end (delta: 57.1 MB). Peak memory consumption was 193.7 MB. Max. memory is 16.0 GB. [2021-04-29 00:54:07,562 INFO L168 Benchmark]: CDTParser took 0.86 ms. Allocated memory is still 304.1 MB. Free memory was 273.8 MB in the beginning and 273.7 MB in the end (delta: 153.8 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-04-29 00:54:07,562 INFO L168 Benchmark]: CACSL2BoogieTranslator took 713.74 ms. Allocated memory is still 304.1 MB. Free memory was 276.0 MB in the beginning and 245.3 MB in the end (delta: 30.8 MB). Peak memory consumption was 29.4 MB. Max. memory is 16.0 GB. [2021-04-29 00:54:07,563 INFO L168 Benchmark]: Boogie Procedure Inliner took 92.92 ms. Allocated memory is still 304.1 MB. Free memory was 245.3 MB in the beginning and 285.4 MB in the end (delta: -40.2 MB). Peak memory consumption was 4.5 MB. Max. memory is 16.0 GB. [2021-04-29 00:54:07,564 INFO L168 Benchmark]: Boogie Preprocessor took 55.90 ms. Allocated memory is still 304.1 MB. Free memory was 285.4 MB in the beginning and 284.4 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-04-29 00:54:07,564 INFO L168 Benchmark]: RCFGBuilder took 528.05 ms. Allocated memory is still 304.1 MB. Free memory was 284.4 MB in the beginning and 261.3 MB in the end (delta: 23.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. [2021-04-29 00:54:07,565 INFO L168 Benchmark]: TraceAbstraction took 10170.73 ms. Allocated memory was 304.1 MB in the beginning and 438.3 MB in the end (delta: 134.2 MB). Free memory was 261.3 MB in the beginning and 222.1 MB in the end (delta: 39.2 MB). Peak memory consumption was 176.6 MB. Max. memory is 16.0 GB. [2021-04-29 00:54:07,568 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.86 ms. Allocated memory is still 304.1 MB. Free memory was 273.8 MB in the beginning and 273.7 MB in the end (delta: 153.8 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 713.74 ms. Allocated memory is still 304.1 MB. Free memory was 276.0 MB in the beginning and 245.3 MB in the end (delta: 30.8 MB). Peak memory consumption was 29.4 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 92.92 ms. Allocated memory is still 304.1 MB. Free memory was 245.3 MB in the beginning and 285.4 MB in the end (delta: -40.2 MB). Peak memory consumption was 4.5 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 55.90 ms. Allocated memory is still 304.1 MB. Free memory was 285.4 MB in the beginning and 284.4 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.0 GB. * RCFGBuilder took 528.05 ms. Allocated memory is still 304.1 MB. Free memory was 284.4 MB in the beginning and 261.3 MB in the end (delta: 23.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. * TraceAbstraction took 10170.73 ms. Allocated memory was 304.1 MB in the beginning and 438.3 MB in the end (delta: 134.2 MB). Free memory was 261.3 MB in the beginning and 222.1 MB in the end (delta: 39.2 MB). Peak memory consumption was 176.6 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 8506.7ms, 70 PlacesBefore, 80 PlacesAfterwards, 61 TransitionsBefore, 70 TransitionsAfterwards, 864 CoEnabledTransitionPairs, 6 FixpointIterations, 48 TrivialSequentialCompositions, 42 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 1 ChoiceCompositions, 91 TotalNumberOfCompositions, 5406 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2394, positive: 2234, positive conditional: 2234, positive unconditional: 0, negative: 160, negative conditional: 160, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 952, positive: 912, positive conditional: 0, positive unconditional: 912, negative: 40, negative conditional: 0, negative unconditional: 40, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 952, positive: 912, positive conditional: 0, positive unconditional: 912, negative: 40, negative conditional: 0, negative unconditional: 40, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 952, positive: 890, positive conditional: 0, positive unconditional: 890, negative: 62, negative conditional: 0, negative unconditional: 62, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 62, positive: 22, positive conditional: 0, positive unconditional: 22, negative: 40, negative conditional: 0, negative unconditional: 40, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 321, positive: 130, positive conditional: 0, positive unconditional: 130, negative: 192, negative conditional: 0, negative unconditional: 192, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 2394, positive: 1322, positive conditional: 1322, positive unconditional: 0, negative: 120, negative conditional: 120, negative unconditional: 0, unknown: 952, unknown conditional: 952, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 935, Positive cache size: 895, Positive conditional cache size: 895, Positive unconditional cache size: 0, Negative cache size: 40, Negative conditional cache size: 40, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 28.9ms, 80 PlacesBefore, 35 PlacesAfterwards, 25 TransitionsBefore, 25 TransitionsAfterwards, 330 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 357 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 128, positive: 105, positive conditional: 105, positive unconditional: 0, negative: 23, negative conditional: 23, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 20, positive: 17, positive conditional: 2, positive unconditional: 15, negative: 3, negative conditional: 2, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 20, positive: 17, positive conditional: 2, positive unconditional: 15, negative: 3, negative conditional: 2, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 20, positive: 17, positive conditional: 0, positive unconditional: 17, 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: 2, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 13, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 13, negative conditional: 7, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 128, positive: 88, positive conditional: 88, positive unconditional: 0, negative: 20, negative conditional: 20, negative unconditional: 0, unknown: 20, unknown conditional: 20, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 955, Positive cache size: 912, Positive conditional cache size: 912, Positive unconditional cache size: 0, Negative cache size: 43, Negative conditional cache size: 43, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 25.6ms, 40 PlacesBefore, 40 PlacesAfterwards, 30 TransitionsBefore, 30 TransitionsAfterwards, 406 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 250 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 46, positive: 33, positive conditional: 33, positive unconditional: 0, negative: 13, negative conditional: 13, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 3, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 2, negative conditional: 1, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 3, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 2, negative conditional: 1, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 3, positive: 1, positive conditional: 0, positive unconditional: 1, 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: 1, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 7, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 7, negative conditional: 4, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 46, positive: 32, positive conditional: 32, positive unconditional: 0, negative: 11, negative conditional: 11, negative unconditional: 0, unknown: 3, unknown conditional: 3, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 958, Positive cache size: 913, Positive conditional cache size: 913, Positive unconditional cache size: 0, Negative cache size: 45, Negative conditional cache size: 45, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 13.7ms, 44 PlacesBefore, 42 PlacesAfterwards, 26 TransitionsBefore, 26 TransitionsAfterwards, 284 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 180 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 64, positive: 51, positive conditional: 51, positive unconditional: 0, negative: 13, negative conditional: 13, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 5, positive: 4, positive conditional: 0, positive unconditional: 4, 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: 5, positive: 4, positive conditional: 0, positive unconditional: 4, 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: 5, positive: 4, positive conditional: 0, positive unconditional: 4, 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: 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] ], Cache Queries: [ total: 64, positive: 47, positive conditional: 47, positive unconditional: 0, negative: 12, negative conditional: 12, negative unconditional: 0, unknown: 5, unknown conditional: 5, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 963, Positive cache size: 917, Positive conditional cache size: 917, Positive unconditional cache size: 0, Negative cache size: 46, Negative conditional cache size: 46, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 91.3ms, 40 PlacesBefore, 39 PlacesAfterwards, 23 TransitionsBefore, 23 TransitionsAfterwards, 200 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 3 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 3 TotalNumberOfCompositions, 126 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 48, positive: 40, positive conditional: 40, positive unconditional: 0, negative: 8, negative conditional: 8, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 13, positive: 13, positive conditional: 4, 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: 13, positive: 13, positive conditional: 4, 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: 13, positive: 8, positive conditional: 0, positive unconditional: 8, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 5, positive: 5, positive conditional: 0, positive unconditional: 5, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 14, positive: 14, positive conditional: 0, positive unconditional: 14, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 48, positive: 27, positive conditional: 27, positive unconditional: 0, negative: 8, negative conditional: 8, negative unconditional: 0, unknown: 13, unknown conditional: 13, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 976, Positive cache size: 930, Positive conditional cache size: 930, Positive unconditional cache size: 0, Negative cache size: 46, Negative conditional cache size: 46, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.2ms, 34 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): 976, Positive cache size: 930, Positive conditional cache size: 930, Positive unconditional cache size: 0, Negative cache size: 46, Negative conditional cache size: 46, 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, 75 locations, 1 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 12.7ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 9981.3ms, OverallIterations: 5, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 343.1ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 8670.5ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 46 SDtfs, 31 SDslu, 10 SDs, 0 SdLazy, 44 SolverSat, 23 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 72.9ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 16 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 74.4ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=149occurred in iteration=0, InterpolantAutomatonStates: 20, 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: 23.3ms SsaConstructionTime, 185.0ms SatisfiabilityAnalysisTime, 379.0ms InterpolantComputationTime, 51 NumberOfCodeBlocks, 51 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 46 ConstructedInterpolants, 0 QuantifiedInterpolants, 198 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! Received shutdown request...