/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/safe030_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-6f4246e9f5583d222ebb38ff8175c901f3a528f0-6f4246e [2021-04-29 00:39:33,555 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-04-29 00:39:33,558 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-04-29 00:39:33,594 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-04-29 00:39:33,610 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-04-29 00:39:33,612 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-04-29 00:39:33,616 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-04-29 00:39:33,618 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-04-29 00:39:33,619 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-04-29 00:39:33,620 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-04-29 00:39:33,622 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-04-29 00:39:33,628 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-04-29 00:39:33,635 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-04-29 00:39:33,641 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-04-29 00:39:33,643 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-04-29 00:39:33,644 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-04-29 00:39:33,651 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-04-29 00:39:33,670 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-04-29 00:39:33,672 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-04-29 00:39:33,674 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-04-29 00:39:33,675 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 00:39:33,747 INFO L113 SettingsManager]: Loading preferences was successful [2021-04-29 00:39:33,747 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-04-29 00:39:33,749 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-04-29 00:39:33,750 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-04-29 00:39:33,752 INFO L138 SettingsManager]: * Use SBE=true [2021-04-29 00:39:33,753 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-04-29 00:39:33,753 INFO L138 SettingsManager]: * sizeof long=4 [2021-04-29 00:39:33,753 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-04-29 00:39:33,753 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-04-29 00:39:33,753 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-04-29 00:39:33,754 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-04-29 00:39:33,755 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-04-29 00:39:33,755 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-04-29 00:39:33,755 INFO L138 SettingsManager]: * sizeof long double=12 [2021-04-29 00:39:33,755 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-04-29 00:39:33,756 INFO L138 SettingsManager]: * Use constant arrays=true [2021-04-29 00:39:33,756 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-04-29 00:39:33,756 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-04-29 00:39:33,756 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-04-29 00:39:33,756 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-04-29 00:39:33,757 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-04-29 00:39:33,757 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-04-29 00:39:33,757 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-04-29 00:39:33,757 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-04-29 00:39:33,757 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-04-29 00:39:33,758 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-04-29 00:39:33,758 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-04-29 00:39:33,758 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=SEMANTIC_BASED_MOVER_CHECK_WITH_PREDICATES [2021-04-29 00:39:33,758 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-04-29 00:39:33,758 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-04-29 00:39:33,759 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-04-29 00:39:34,236 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-04-29 00:39:34,270 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-04-29 00:39:34,274 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-04-29 00:39:34,276 INFO L271 PluginConnector]: Initializing CDTParser... [2021-04-29 00:39:34,277 INFO L275 PluginConnector]: CDTParser initialized [2021-04-29 00:39:34,278 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe030_tso.opt.i [2021-04-29 00:39:34,387 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5fc2f92f6/8e4bd3f8ed8f4c3280e02afb665d3eb8/FLAG726c5a3d6 [2021-04-29 00:39:35,375 INFO L306 CDTParser]: Found 1 translation units. [2021-04-29 00:39:35,380 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe030_tso.opt.i [2021-04-29 00:39:35,412 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5fc2f92f6/8e4bd3f8ed8f4c3280e02afb665d3eb8/FLAG726c5a3d6 [2021-04-29 00:39:35,542 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5fc2f92f6/8e4bd3f8ed8f4c3280e02afb665d3eb8 [2021-04-29 00:39:35,546 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-04-29 00:39:35,599 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-04-29 00:39:35,602 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-04-29 00:39:35,602 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-04-29 00:39:35,607 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-04-29 00:39:35,608 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.04 12:39:35" (1/1) ... [2021-04-29 00:39:35,610 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@397716c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:39:35, skipping insertion in model container [2021-04-29 00:39:35,610 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.04 12:39:35" (1/1) ... [2021-04-29 00:39:35,621 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-04-29 00:39:35,669 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-04-29 00:39:35,876 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/safe030_tso.opt.i[949,962] [2021-04-29 00:39:36,212 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-29 00:39:36,224 INFO L203 MainTranslator]: Completed pre-run [2021-04-29 00:39:36,242 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/safe030_tso.opt.i[949,962] [2021-04-29 00:39:36,280 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-29 00:39:36,402 INFO L208 MainTranslator]: Completed translation [2021-04-29 00:39:36,402 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:39:36 WrapperNode [2021-04-29 00:39:36,405 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-04-29 00:39:36,406 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-04-29 00:39:36,407 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-04-29 00:39:36,407 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-04-29 00:39:36,418 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:39:36" (1/1) ... [2021-04-29 00:39:36,460 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:39:36" (1/1) ... [2021-04-29 00:39:36,500 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-04-29 00:39:36,502 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-04-29 00:39:36,502 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-04-29 00:39:36,502 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-04-29 00:39:36,513 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:39:36" (1/1) ... [2021-04-29 00:39:36,513 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:39:36" (1/1) ... [2021-04-29 00:39:36,531 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:39:36" (1/1) ... [2021-04-29 00:39:36,531 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:39:36" (1/1) ... [2021-04-29 00:39:36,544 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:39:36" (1/1) ... [2021-04-29 00:39:36,554 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:39:36" (1/1) ... [2021-04-29 00:39:36,556 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:39:36" (1/1) ... [2021-04-29 00:39:36,560 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-04-29 00:39:36,562 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-04-29 00:39:36,562 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-04-29 00:39:36,562 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-04-29 00:39:36,563 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:39:36" (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 00:39:36,686 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-04-29 00:39:36,686 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-04-29 00:39:36,687 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-04-29 00:39:36,687 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-04-29 00:39:36,687 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-04-29 00:39:36,687 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-04-29 00:39:36,687 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-04-29 00:39:36,688 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-04-29 00:39:36,688 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-04-29 00:39:36,688 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-04-29 00:39:36,688 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-04-29 00:39:36,688 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-04-29 00:39:36,688 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-04-29 00:39:36,688 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-04-29 00:39:36,690 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 00:39:37,151 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-04-29 00:39:37,152 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-04-29 00:39:37,155 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.04 12:39:37 BoogieIcfgContainer [2021-04-29 00:39:37,155 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-04-29 00:39:37,157 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-04-29 00:39:37,157 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-04-29 00:39:37,163 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-04-29 00:39:37,163 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.04 12:39:35" (1/3) ... [2021-04-29 00:39:37,164 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47017572 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.04 12:39:37, skipping insertion in model container [2021-04-29 00:39:37,165 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:39:36" (2/3) ... [2021-04-29 00:39:37,165 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47017572 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.04 12:39:37, skipping insertion in model container [2021-04-29 00:39:37,166 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.04 12:39:37" (3/3) ... [2021-04-29 00:39:37,168 INFO L111 eAbstractionObserver]: Analyzing ICFG safe030_tso.opt.i [2021-04-29 00:39:37,181 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-04-29 00:39:37,188 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-04-29 00:39:37,190 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-04-29 00:39:37,283 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:39:37,284 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:39:37,284 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:39:37,285 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:39:37,285 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:39:37,286 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:39:37,286 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:39:37,286 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:39:37,290 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:39:37,291 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:39:37,292 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:39:37,292 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:39:37,293 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:39:37,294 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:39:37,295 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:39:37,295 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:39:37,296 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:39:37,296 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:39:37,296 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:39:37,296 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:39:37,297 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:39:37,297 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:39:37,298 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:39:37,298 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:39:37,300 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:39:37,300 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:39:37,300 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:39:37,300 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:39:37,303 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:39:37,303 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:39:37,304 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:39:37,304 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:39:37,305 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:39:37,307 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:39:37,307 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:39:37,308 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:39:37,311 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:39:37,313 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:39:37,314 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:39:37,315 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:39:37,325 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:39:37,326 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:39:37,326 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:39:37,327 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:39:37,333 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:39:37,333 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:39:37,334 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:39:37,334 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:39:37,348 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-04-29 00:39:37,387 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-04-29 00:39:37,452 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-04-29 00:39:37,453 INFO L377 AbstractCegarLoop]: Hoare is false [2021-04-29 00:39:37,453 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-04-29 00:39:37,453 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-04-29 00:39:37,454 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-04-29 00:39:37,455 INFO L381 AbstractCegarLoop]: Difference is false [2021-04-29 00:39:37,455 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-04-29 00:39:37,455 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-04-29 00:39:37,485 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 81 places, 73 transitions, 161 flow [2021-04-29 00:39:37,596 INFO L129 PetriNetUnfolder]: 2/70 cut-off events. [2021-04-29 00:39:37,596 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 00:39:37,607 INFO L84 FinitePrefix]: Finished finitePrefix Result has 80 conditions, 70 events. 2/70 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 55 event pairs, 0 based on Foata normal form. 0/67 useless extension candidates. Maximal degree in co-relation 56. Up to 2 conditions per place. [2021-04-29 00:39:37,608 INFO L82 GeneralOperation]: Start removeDead. Operand has 81 places, 73 transitions, 161 flow [2021-04-29 00:39:37,631 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 67 places, 58 transitions, 125 flow [2021-04-29 00:39:37,638 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:39:37,661 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 67 places, 58 transitions, 125 flow [2021-04-29 00:39:37,672 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 67 places, 58 transitions, 125 flow [2021-04-29 00:39:37,677 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 67 places, 58 transitions, 125 flow [2021-04-29 00:39:37,721 INFO L129 PetriNetUnfolder]: 1/58 cut-off events. [2021-04-29 00:39:37,721 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 00:39:37,722 INFO L84 FinitePrefix]: Finished finitePrefix Result has 68 conditions, 58 events. 1/58 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 48 event pairs, 0 based on Foata normal form. 0/57 useless extension candidates. Maximal degree in co-relation 44. Up to 2 conditions per place. [2021-04-29 00:39:37,727 INFO L146 LiptonReduction]: Number of co-enabled transitions 864 [2021-04-29 00:39:42,422 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 48 [2021-04-29 00:39:42,583 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 48 [2021-04-29 00:39:42,873 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 46 [2021-04-29 00:39:43,177 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 46 [2021-04-29 00:39:43,353 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 52 [2021-04-29 00:39:43,545 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 52 [2021-04-29 00:39:43,727 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2021-04-29 00:39:43,897 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2021-04-29 00:39:44,787 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 56 [2021-04-29 00:39:44,999 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 56 [2021-04-29 00:39:45,211 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2021-04-29 00:39:45,443 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2021-04-29 00:39:45,645 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 54 [2021-04-29 00:39:45,841 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 54 [2021-04-29 00:39:46,077 WARN L205 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2021-04-29 00:39:46,320 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2021-04-29 00:39:46,514 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 46 [2021-04-29 00:39:46,669 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 46 [2021-04-29 00:39:46,893 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2021-04-29 00:39:47,115 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2021-04-29 00:39:47,383 WARN L205 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 67 [2021-04-29 00:39:47,671 WARN L205 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 67 [2021-04-29 00:39:47,982 WARN L205 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-04-29 00:39:48,311 WARN L205 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-04-29 00:39:48,417 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2021-04-29 00:39:48,449 INFO L158 LiptonReduction]: Checked pairs total: 6958 [2021-04-29 00:39:48,449 INFO L160 LiptonReduction]: Total number of compositions: 89 [2021-04-29 00:39:48,454 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 10822 [2021-04-29 00:39:48,479 INFO L129 PetriNetUnfolder]: 0/57 cut-off events. [2021-04-29 00:39:48,480 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 00:39:48,480 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:39:48,481 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:39:48,481 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:39:48,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:39:48,489 INFO L82 PathProgramCache]: Analyzing trace with hash 1912635337, now seen corresponding path program 1 times [2021-04-29 00:39:48,502 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:39:48,503 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [364303822] [2021-04-29 00:39:48,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:39:48,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:39:48,869 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:39:48,871 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-29 00:39:48,889 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 00:39:48,890 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [364303822] [2021-04-29 00:39:48,891 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:39:48,892 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-29 00:39:48,892 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1521725055] [2021-04-29 00:39:48,906 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-29 00:39:48,906 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:39:48,926 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-29 00:39:48,929 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-29 00:39:48,932 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 162 [2021-04-29 00:39:48,937 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 68 transitions, 145 flow. Second operand has 3 states, 3 states have (on average 109.66666666666667) internal successors, (329), 3 states have internal predecessors, (329), 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 00:39:48,938 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:39:48,938 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 162 [2021-04-29 00:39:48,940 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:39:49,278 INFO L129 PetriNetUnfolder]: 518/1329 cut-off events. [2021-04-29 00:39:49,279 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 00:39:49,292 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2174 conditions, 1329 events. 518/1329 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 291. Compared 11687 event pairs, 160 based on Foata normal form. 0/784 useless extension candidates. Maximal degree in co-relation 2137. Up to 443 conditions per place. [2021-04-29 00:39:49,299 INFO L132 encePairwiseOnDemand]: 147/162 looper letters, 7 selfloop transitions, 7 changer transitions 34/79 dead transitions. [2021-04-29 00:39:49,299 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 79 transitions, 229 flow [2021-04-29 00:39:49,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-29 00:39:49,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-29 00:39:49,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 360 transitions. [2021-04-29 00:39:49,334 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7407407407407407 [2021-04-29 00:39:49,336 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 360 transitions. [2021-04-29 00:39:49,336 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 360 transitions. [2021-04-29 00:39:49,341 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:39:49,345 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 360 transitions. [2021-04-29 00:39:49,356 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 120.0) internal successors, (360), 3 states have internal predecessors, (360), 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 00:39:49,370 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 162.0) internal successors, (648), 4 states have internal predecessors, (648), 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 00:39:49,372 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 162.0) internal successors, (648), 4 states have internal predecessors, (648), 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 00:39:49,375 INFO L185 Difference]: Start difference. First operand has 78 places, 68 transitions, 145 flow. Second operand 3 states and 360 transitions. [2021-04-29 00:39:49,377 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 79 transitions, 229 flow [2021-04-29 00:39:49,382 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 79 transitions, 226 flow, removed 0 selfloop flow, removed 3 redundant places. [2021-04-29 00:39:49,386 INFO L241 Difference]: Finished difference. Result has 79 places, 45 transitions, 138 flow [2021-04-29 00:39:49,389 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=162, PETRI_DIFFERENCE_MINUEND_FLOW=142, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=68, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=61, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=138, PETRI_PLACES=79, PETRI_TRANSITIONS=45} [2021-04-29 00:39:49,391 INFO L343 CegarLoopForPetriNet]: 78 programPoint places, 1 predicate places. [2021-04-29 00:39:49,392 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:39:49,392 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 79 places, 45 transitions, 138 flow [2021-04-29 00:39:49,393 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 79 places, 45 transitions, 138 flow [2021-04-29 00:39:49,394 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 50 places, 45 transitions, 138 flow [2021-04-29 00:39:49,435 INFO L129 PetriNetUnfolder]: 90/303 cut-off events. [2021-04-29 00:39:49,436 INFO L130 PetriNetUnfolder]: For 27/31 co-relation queries the response was YES. [2021-04-29 00:39:49,438 INFO L84 FinitePrefix]: Finished finitePrefix Result has 567 conditions, 303 events. 90/303 cut-off events. For 27/31 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 1990 event pairs, 36 based on Foata normal form. 0/208 useless extension candidates. Maximal degree in co-relation 558. Up to 85 conditions per place. [2021-04-29 00:39:49,449 INFO L146 LiptonReduction]: Number of co-enabled transitions 1040 [2021-04-29 00:39:49,457 INFO L158 LiptonReduction]: Checked pairs total: 24 [2021-04-29 00:39:49,457 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 00:39:49,458 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 66 [2021-04-29 00:39:49,461 INFO L480 AbstractCegarLoop]: Abstraction has has 50 places, 45 transitions, 138 flow [2021-04-29 00:39:49,462 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 109.66666666666667) internal successors, (329), 3 states have internal predecessors, (329), 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 00:39:49,462 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:39:49,462 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:39:49,463 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-04-29 00:39:49,464 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:39:49,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:39:49,476 INFO L82 PathProgramCache]: Analyzing trace with hash -245351420, now seen corresponding path program 1 times [2021-04-29 00:39:49,476 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:39:49,476 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1419124564] [2021-04-29 00:39:49,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:39:49,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:39:49,598 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:39:49,599 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-04-29 00:39:49,603 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:39:49,604 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-29 00:39:49,612 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 00:39:49,613 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1419124564] [2021-04-29 00:39:49,613 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:39:49,613 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-04-29 00:39:49,613 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [579193563] [2021-04-29 00:39:49,615 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-29 00:39:49,615 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:39:49,616 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-29 00:39:49,617 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-04-29 00:39:49,619 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 162 [2021-04-29 00:39:49,620 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 45 transitions, 138 flow. Second operand has 4 states, 4 states have (on average 109.75) internal successors, (439), 4 states have internal predecessors, (439), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:39:49,621 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:39:49,621 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 162 [2021-04-29 00:39:49,621 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:39:49,699 INFO L129 PetriNetUnfolder]: 73/297 cut-off events. [2021-04-29 00:39:49,700 INFO L130 PetriNetUnfolder]: For 54/144 co-relation queries the response was YES. [2021-04-29 00:39:49,702 INFO L84 FinitePrefix]: Finished finitePrefix Result has 694 conditions, 297 events. 73/297 cut-off events. For 54/144 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 1941 event pairs, 5 based on Foata normal form. 3/201 useless extension candidates. Maximal degree in co-relation 683. Up to 87 conditions per place. [2021-04-29 00:39:49,705 INFO L132 encePairwiseOnDemand]: 154/162 looper letters, 15 selfloop transitions, 9 changer transitions 0/55 dead transitions. [2021-04-29 00:39:49,705 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 55 transitions, 236 flow [2021-04-29 00:39:49,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-04-29 00:39:49,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-04-29 00:39:49,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 455 transitions. [2021-04-29 00:39:49,709 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7021604938271605 [2021-04-29 00:39:49,709 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 455 transitions. [2021-04-29 00:39:49,709 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 455 transitions. [2021-04-29 00:39:49,710 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:39:49,710 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 455 transitions. [2021-04-29 00:39:49,712 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 113.75) internal successors, (455), 4 states have internal predecessors, (455), 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 00:39:49,715 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 162.0) internal successors, (810), 5 states have internal predecessors, (810), 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 00:39:49,717 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 162.0) internal successors, (810), 5 states have internal predecessors, (810), 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 00:39:49,717 INFO L185 Difference]: Start difference. First operand has 50 places, 45 transitions, 138 flow. Second operand 4 states and 455 transitions. [2021-04-29 00:39:49,717 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 55 transitions, 236 flow [2021-04-29 00:39:49,721 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 55 transitions, 212 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-04-29 00:39:49,722 INFO L241 Difference]: Finished difference. Result has 54 places, 51 transitions, 198 flow [2021-04-29 00:39:49,723 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=162, PETRI_DIFFERENCE_MINUEND_FLOW=124, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=198, PETRI_PLACES=54, PETRI_TRANSITIONS=51} [2021-04-29 00:39:49,724 INFO L343 CegarLoopForPetriNet]: 78 programPoint places, -24 predicate places. [2021-04-29 00:39:49,724 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:39:49,724 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 54 places, 51 transitions, 198 flow [2021-04-29 00:39:49,725 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 54 places, 51 transitions, 198 flow [2021-04-29 00:39:49,726 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 54 places, 51 transitions, 198 flow [2021-04-29 00:39:49,762 INFO L129 PetriNetUnfolder]: 73/297 cut-off events. [2021-04-29 00:39:49,762 INFO L130 PetriNetUnfolder]: For 117/129 co-relation queries the response was YES. [2021-04-29 00:39:49,765 INFO L84 FinitePrefix]: Finished finitePrefix Result has 647 conditions, 297 events. 73/297 cut-off events. For 117/129 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 1996 event pairs, 18 based on Foata normal form. 0/198 useless extension candidates. Maximal degree in co-relation 635. Up to 87 conditions per place. [2021-04-29 00:39:49,775 INFO L146 LiptonReduction]: Number of co-enabled transitions 1238 [2021-04-29 00:39:49,790 INFO L158 LiptonReduction]: Checked pairs total: 30 [2021-04-29 00:39:49,790 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 00:39:49,790 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 66 [2021-04-29 00:39:49,793 INFO L480 AbstractCegarLoop]: Abstraction has has 54 places, 51 transitions, 198 flow [2021-04-29 00:39:49,794 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 109.75) internal successors, (439), 4 states have internal predecessors, (439), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:39:49,794 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:39:49,794 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:39:49,794 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-04-29 00:39:49,795 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:39:49,795 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:39:49,796 INFO L82 PathProgramCache]: Analyzing trace with hash -837877647, now seen corresponding path program 1 times [2021-04-29 00:39:49,796 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:39:49,797 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [841248432] [2021-04-29 00:39:49,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:39:49,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:39:49,871 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:39:49,872 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-04-29 00:39:49,877 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:39:49,878 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-29 00:39:49,887 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 00:39:49,887 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [841248432] [2021-04-29 00:39:49,888 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:39:49,888 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-04-29 00:39:49,888 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2087564187] [2021-04-29 00:39:49,888 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-29 00:39:49,889 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:39:49,889 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-29 00:39:49,890 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-04-29 00:39:49,892 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 162 [2021-04-29 00:39:49,893 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 51 transitions, 198 flow. Second operand has 4 states, 4 states have (on average 109.75) internal successors, (439), 4 states have internal predecessors, (439), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:39:49,893 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:39:49,893 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 162 [2021-04-29 00:39:49,893 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:39:49,990 INFO L129 PetriNetUnfolder]: 57/299 cut-off events. [2021-04-29 00:39:49,990 INFO L130 PetriNetUnfolder]: For 132/225 co-relation queries the response was YES. [2021-04-29 00:39:49,992 INFO L84 FinitePrefix]: Finished finitePrefix Result has 767 conditions, 299 events. 57/299 cut-off events. For 132/225 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 2115 event pairs, 6 based on Foata normal form. 12/205 useless extension candidates. Maximal degree in co-relation 753. Up to 87 conditions per place. [2021-04-29 00:39:49,996 INFO L132 encePairwiseOnDemand]: 154/162 looper letters, 17 selfloop transitions, 13 changer transitions 2/63 dead transitions. [2021-04-29 00:39:49,996 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 63 transitions, 342 flow [2021-04-29 00:39:49,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-04-29 00:39:49,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-04-29 00:39:49,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 455 transitions. [2021-04-29 00:39:49,999 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7021604938271605 [2021-04-29 00:39:50,000 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 455 transitions. [2021-04-29 00:39:50,000 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 455 transitions. [2021-04-29 00:39:50,001 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:39:50,001 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 455 transitions. [2021-04-29 00:39:50,003 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 113.75) internal successors, (455), 4 states have internal predecessors, (455), 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 00:39:50,006 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 162.0) internal successors, (810), 5 states have internal predecessors, (810), 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 00:39:50,007 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 162.0) internal successors, (810), 5 states have internal predecessors, (810), 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 00:39:50,007 INFO L185 Difference]: Start difference. First operand has 54 places, 51 transitions, 198 flow. Second operand 4 states and 455 transitions. [2021-04-29 00:39:50,008 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 63 transitions, 342 flow [2021-04-29 00:39:50,015 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 63 transitions, 333 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-04-29 00:39:50,018 INFO L241 Difference]: Finished difference. Result has 59 places, 57 transitions, 305 flow [2021-04-29 00:39:50,018 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=162, PETRI_DIFFERENCE_MINUEND_FLOW=193, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=305, PETRI_PLACES=59, PETRI_TRANSITIONS=57} [2021-04-29 00:39:50,019 INFO L343 CegarLoopForPetriNet]: 78 programPoint places, -19 predicate places. [2021-04-29 00:39:50,019 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:39:50,020 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 59 places, 57 transitions, 305 flow [2021-04-29 00:39:50,022 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 59 places, 57 transitions, 305 flow [2021-04-29 00:39:50,023 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 59 places, 57 transitions, 305 flow [2021-04-29 00:39:50,075 INFO L129 PetriNetUnfolder]: 55/297 cut-off events. [2021-04-29 00:39:50,075 INFO L130 PetriNetUnfolder]: For 291/329 co-relation queries the response was YES. [2021-04-29 00:39:50,078 INFO L84 FinitePrefix]: Finished finitePrefix Result has 773 conditions, 297 events. 55/297 cut-off events. For 291/329 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 2159 event pairs, 3 based on Foata normal form. 1/191 useless extension candidates. Maximal degree in co-relation 757. Up to 85 conditions per place. [2021-04-29 00:39:50,087 INFO L146 LiptonReduction]: Number of co-enabled transitions 1438 [2021-04-29 00:39:50,100 INFO L158 LiptonReduction]: Checked pairs total: 36 [2021-04-29 00:39:50,100 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 00:39:50,100 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 81 [2021-04-29 00:39:50,106 INFO L480 AbstractCegarLoop]: Abstraction has has 59 places, 57 transitions, 305 flow [2021-04-29 00:39:50,107 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 109.75) internal successors, (439), 4 states have internal predecessors, (439), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:39:50,107 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:39:50,107 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:39:50,108 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-04-29 00:39:50,108 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:39:50,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:39:50,110 INFO L82 PathProgramCache]: Analyzing trace with hash -203477106, now seen corresponding path program 1 times [2021-04-29 00:39:50,112 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:39:50,112 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2122308649] [2021-04-29 00:39:50,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:39:50,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:39:50,209 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:39:50,210 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-04-29 00:39:50,215 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:39:50,215 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-04-29 00:39:50,216 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 00:39:50,216 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2122308649] [2021-04-29 00:39:50,216 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:39:50,217 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-29 00:39:50,217 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1241889149] [2021-04-29 00:39:50,217 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-29 00:39:50,217 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:39:50,218 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-29 00:39:50,218 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-29 00:39:50,220 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 120 out of 162 [2021-04-29 00:39:50,221 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 57 transitions, 305 flow. Second operand has 3 states, 3 states have (on average 120.66666666666667) internal successors, (362), 3 states have internal predecessors, (362), 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 00:39:50,222 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:39:50,222 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 120 of 162 [2021-04-29 00:39:50,222 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:39:50,287 INFO L129 PetriNetUnfolder]: 40/307 cut-off events. [2021-04-29 00:39:50,287 INFO L130 PetriNetUnfolder]: For 376/439 co-relation queries the response was YES. [2021-04-29 00:39:50,290 INFO L84 FinitePrefix]: Finished finitePrefix Result has 797 conditions, 307 events. 40/307 cut-off events. For 376/439 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 2308 event pairs, 3 based on Foata normal form. 7/193 useless extension candidates. Maximal degree in co-relation 779. Up to 83 conditions per place. [2021-04-29 00:39:50,292 INFO L132 encePairwiseOnDemand]: 158/162 looper letters, 3 selfloop transitions, 8 changer transitions 5/60 dead transitions. [2021-04-29 00:39:50,292 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 60 transitions, 359 flow [2021-04-29 00:39:50,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-29 00:39:50,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-29 00:39:50,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 366 transitions. [2021-04-29 00:39:50,295 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7530864197530864 [2021-04-29 00:39:50,295 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 366 transitions. [2021-04-29 00:39:50,295 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 366 transitions. [2021-04-29 00:39:50,296 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:39:50,296 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 366 transitions. [2021-04-29 00:39:50,298 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 122.0) internal successors, (366), 3 states have internal predecessors, (366), 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 00:39:50,300 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 162.0) internal successors, (648), 4 states have internal predecessors, (648), 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 00:39:50,300 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 162.0) internal successors, (648), 4 states have internal predecessors, (648), 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 00:39:50,301 INFO L185 Difference]: Start difference. First operand has 59 places, 57 transitions, 305 flow. Second operand 3 states and 366 transitions. [2021-04-29 00:39:50,301 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 60 transitions, 359 flow [2021-04-29 00:39:50,307 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 60 transitions, 353 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-04-29 00:39:50,308 INFO L241 Difference]: Finished difference. Result has 62 places, 55 transitions, 324 flow [2021-04-29 00:39:50,309 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=162, PETRI_DIFFERENCE_MINUEND_FLOW=299, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=57, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=324, PETRI_PLACES=62, PETRI_TRANSITIONS=55} [2021-04-29 00:39:50,309 INFO L343 CegarLoopForPetriNet]: 78 programPoint places, -16 predicate places. [2021-04-29 00:39:50,309 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:39:50,310 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 62 places, 55 transitions, 324 flow [2021-04-29 00:39:50,310 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 62 places, 55 transitions, 324 flow [2021-04-29 00:39:50,311 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 62 places, 55 transitions, 324 flow [2021-04-29 00:39:50,353 INFO L129 PetriNetUnfolder]: 29/286 cut-off events. [2021-04-29 00:39:50,353 INFO L130 PetriNetUnfolder]: For 347/387 co-relation queries the response was YES. [2021-04-29 00:39:50,355 INFO L84 FinitePrefix]: Finished finitePrefix Result has 727 conditions, 286 events. 29/286 cut-off events. For 347/387 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 2254 event pairs, 3 based on Foata normal form. 1/169 useless extension candidates. Maximal degree in co-relation 708. Up to 70 conditions per place. [2021-04-29 00:39:50,364 INFO L146 LiptonReduction]: Number of co-enabled transitions 1344 [2021-04-29 00:39:50,373 INFO L158 LiptonReduction]: Checked pairs total: 34 [2021-04-29 00:39:50,373 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 00:39:50,373 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 64 [2021-04-29 00:39:50,375 INFO L480 AbstractCegarLoop]: Abstraction has has 62 places, 55 transitions, 324 flow [2021-04-29 00:39:50,376 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 120.66666666666667) internal successors, (362), 3 states have internal predecessors, (362), 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 00:39:50,376 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:39:50,376 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:39:50,376 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-04-29 00:39:50,377 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:39:50,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:39:50,377 INFO L82 PathProgramCache]: Analyzing trace with hash 439502987, now seen corresponding path program 1 times [2021-04-29 00:39:50,377 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:39:50,378 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1565435793] [2021-04-29 00:39:50,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:39:50,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:39:50,445 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:39:50,446 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-04-29 00:39:50,452 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:39:50,453 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-29 00:39:50,462 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 00:39:50,462 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1565435793] [2021-04-29 00:39:50,463 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:39:50,463 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-04-29 00:39:50,463 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2018800256] [2021-04-29 00:39:50,463 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-29 00:39:50,464 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:39:50,464 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-29 00:39:50,465 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-04-29 00:39:50,467 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 97 out of 162 [2021-04-29 00:39:50,468 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 55 transitions, 324 flow. Second operand has 4 states, 4 states have (on average 97.75) internal successors, (391), 4 states have internal predecessors, (391), 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 00:39:50,468 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:39:50,468 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 97 of 162 [2021-04-29 00:39:50,469 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:39:55,678 INFO L129 PetriNetUnfolder]: 16425/26743 cut-off events. [2021-04-29 00:39:55,679 INFO L130 PetriNetUnfolder]: For 2230/3194 co-relation queries the response was YES. [2021-04-29 00:39:55,793 INFO L84 FinitePrefix]: Finished finitePrefix Result has 54182 conditions, 26743 events. 16425/26743 cut-off events. For 2230/3194 co-relation queries the response was YES. Maximal size of possible extension queue 5625. Compared 264970 event pairs, 7267 based on Foata normal form. 78/6766 useless extension candidates. Maximal degree in co-relation 54161. Up to 16645 conditions per place. [2021-04-29 00:39:55,843 INFO L132 encePairwiseOnDemand]: 144/162 looper letters, 26 selfloop transitions, 27 changer transitions 3/90 dead transitions. [2021-04-29 00:39:55,843 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 90 transitions, 506 flow [2021-04-29 00:39:55,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-04-29 00:39:55,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-04-29 00:39:55,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 541 transitions. [2021-04-29 00:39:55,846 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6679012345679012 [2021-04-29 00:39:55,847 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 541 transitions. [2021-04-29 00:39:55,847 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 541 transitions. [2021-04-29 00:39:55,848 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:39:55,848 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 541 transitions. [2021-04-29 00:39:55,850 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 108.2) internal successors, (541), 5 states have internal predecessors, (541), 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 00:39:55,853 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 162.0) internal successors, (972), 6 states have internal predecessors, (972), 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 00:39:55,855 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 162.0) internal successors, (972), 6 states have internal predecessors, (972), 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 00:39:55,855 INFO L185 Difference]: Start difference. First operand has 62 places, 55 transitions, 324 flow. Second operand 5 states and 541 transitions. [2021-04-29 00:39:55,855 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 90 transitions, 506 flow [2021-04-29 00:39:55,865 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 90 transitions, 490 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-04-29 00:39:55,872 INFO L241 Difference]: Finished difference. Result has 67 places, 80 transitions, 505 flow [2021-04-29 00:39:55,873 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=162, PETRI_DIFFERENCE_MINUEND_FLOW=308, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=505, PETRI_PLACES=67, PETRI_TRANSITIONS=80} [2021-04-29 00:39:55,874 INFO L343 CegarLoopForPetriNet]: 78 programPoint places, -11 predicate places. [2021-04-29 00:39:55,874 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:39:55,874 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 67 places, 80 transitions, 505 flow [2021-04-29 00:39:55,875 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 67 places, 80 transitions, 505 flow [2021-04-29 00:39:55,882 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 67 places, 80 transitions, 505 flow [2021-04-29 00:39:58,283 INFO L129 PetriNetUnfolder]: 7098/16685 cut-off events. [2021-04-29 00:39:58,284 INFO L130 PetriNetUnfolder]: For 5135/10380 co-relation queries the response was YES. [2021-04-29 00:39:58,472 INFO L84 FinitePrefix]: Finished finitePrefix Result has 47422 conditions, 16685 events. 7098/16685 cut-off events. For 5135/10380 co-relation queries the response was YES. Maximal size of possible extension queue 4270. Compared 221615 event pairs, 4290 based on Foata normal form. 21/4860 useless extension candidates. Maximal degree in co-relation 47400. Up to 13874 conditions per place. [2021-04-29 00:39:58,650 INFO L146 LiptonReduction]: Number of co-enabled transitions 2000 [2021-04-29 00:39:58,682 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 00:39:58,683 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 00:39:58,683 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 2809 [2021-04-29 00:39:58,685 INFO L480 AbstractCegarLoop]: Abstraction has has 67 places, 80 transitions, 505 flow [2021-04-29 00:39:58,686 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 97.75) internal successors, (391), 4 states have internal predecessors, (391), 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 00:39:58,686 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:39:58,686 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:39:58,686 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-04-29 00:39:58,686 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:39:58,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:39:58,687 INFO L82 PathProgramCache]: Analyzing trace with hash -955156796, now seen corresponding path program 1 times [2021-04-29 00:39:58,687 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:39:58,688 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [442052208] [2021-04-29 00:39:58,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:39:58,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:39:58,764 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:39:58,765 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:39:58,770 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:39:58,771 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:39:58,776 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:39:58,777 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-29 00:39:58,792 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 00:39:58,793 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [442052208] [2021-04-29 00:39:58,793 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:39:58,793 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-29 00:39:58,794 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [467337104] [2021-04-29 00:39:58,794 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-04-29 00:39:58,795 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:39:58,795 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-04-29 00:39:58,795 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-04-29 00:39:58,797 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 97 out of 162 [2021-04-29 00:39:58,799 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 80 transitions, 505 flow. Second operand has 5 states, 5 states have (on average 97.8) internal successors, (489), 5 states have internal predecessors, (489), 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 00:39:58,799 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:39:58,799 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 97 of 162 [2021-04-29 00:39:58,799 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:40:02,852 INFO L129 PetriNetUnfolder]: 13320/25867 cut-off events. [2021-04-29 00:40:02,853 INFO L130 PetriNetUnfolder]: For 12840/69651 co-relation queries the response was YES. [2021-04-29 00:40:02,933 INFO L84 FinitePrefix]: Finished finitePrefix Result has 93492 conditions, 25867 events. 13320/25867 cut-off events. For 12840/69651 co-relation queries the response was YES. Maximal size of possible extension queue 7110. Compared 310944 event pairs, 1516 based on Foata normal form. 249/7909 useless extension candidates. Maximal degree in co-relation 93468. Up to 18524 conditions per place. [2021-04-29 00:40:02,960 INFO L132 encePairwiseOnDemand]: 144/162 looper letters, 11 selfloop transitions, 19 changer transitions 77/134 dead transitions. [2021-04-29 00:40:02,961 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 134 transitions, 990 flow [2021-04-29 00:40:02,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-04-29 00:40:02,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-04-29 00:40:02,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 759 transitions. [2021-04-29 00:40:02,965 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6693121693121693 [2021-04-29 00:40:02,965 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 759 transitions. [2021-04-29 00:40:02,966 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 759 transitions. [2021-04-29 00:40:02,966 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:40:02,967 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 759 transitions. [2021-04-29 00:40:02,969 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 108.42857142857143) internal successors, (759), 7 states have internal predecessors, (759), 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 00:40:02,972 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 162.0) internal successors, (1296), 8 states have internal predecessors, (1296), 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 00:40:02,974 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 162.0) internal successors, (1296), 8 states have internal predecessors, (1296), 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 00:40:02,974 INFO L185 Difference]: Start difference. First operand has 67 places, 80 transitions, 505 flow. Second operand 7 states and 759 transitions. [2021-04-29 00:40:02,974 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 134 transitions, 990 flow [2021-04-29 00:40:03,286 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 134 transitions, 990 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-04-29 00:40:03,289 INFO L241 Difference]: Finished difference. Result has 76 places, 57 transitions, 468 flow [2021-04-29 00:40:03,289 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=162, PETRI_DIFFERENCE_MINUEND_FLOW=505, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=80, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=61, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=468, PETRI_PLACES=76, PETRI_TRANSITIONS=57} [2021-04-29 00:40:03,290 INFO L343 CegarLoopForPetriNet]: 78 programPoint places, -2 predicate places. [2021-04-29 00:40:03,290 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:40:03,290 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 76 places, 57 transitions, 468 flow [2021-04-29 00:40:03,291 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 76 places, 57 transitions, 468 flow [2021-04-29 00:40:03,292 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 62 places, 57 transitions, 468 flow [2021-04-29 00:40:03,402 INFO L129 PetriNetUnfolder]: 495/1036 cut-off events. [2021-04-29 00:40:03,402 INFO L130 PetriNetUnfolder]: For 1998/2254 co-relation queries the response was YES. [2021-04-29 00:40:03,407 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4670 conditions, 1036 events. 495/1036 cut-off events. For 1998/2254 co-relation queries the response was YES. Maximal size of possible extension queue 243. Compared 7623 event pairs, 81 based on Foata normal form. 6/484 useless extension candidates. Maximal degree in co-relation 4643. Up to 919 conditions per place. [2021-04-29 00:40:03,419 INFO L146 LiptonReduction]: Number of co-enabled transitions 676 [2021-04-29 00:40:03,429 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 00:40:03,429 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 00:40:03,430 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 140 [2021-04-29 00:40:03,431 INFO L480 AbstractCegarLoop]: Abstraction has has 62 places, 57 transitions, 468 flow [2021-04-29 00:40:03,432 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 97.8) internal successors, (489), 5 states have internal predecessors, (489), 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 00:40:03,432 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:40:03,433 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:40:03,433 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-04-29 00:40:03,433 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:40:03,433 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:40:03,434 INFO L82 PathProgramCache]: Analyzing trace with hash 2058595768, now seen corresponding path program 1 times [2021-04-29 00:40:03,434 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:40:03,434 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1573871535] [2021-04-29 00:40:03,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:40:03,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:40:03,484 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:40:03,485 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:40:03,488 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:40:03,489 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:40:03,494 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:40:03,495 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:40:03,502 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:40:03,502 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-29 00:40:03,511 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 00:40:03,512 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1573871535] [2021-04-29 00:40:03,512 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:40:03,512 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-04-29 00:40:03,512 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [700970675] [2021-04-29 00:40:03,513 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-04-29 00:40:03,513 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:40:03,513 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-04-29 00:40:03,513 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-04-29 00:40:03,515 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 97 out of 162 [2021-04-29 00:40:03,516 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 57 transitions, 468 flow. Second operand has 6 states, 6 states have (on average 97.83333333333333) internal successors, (587), 6 states have internal predecessors, (587), 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 00:40:03,516 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:40:03,516 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 97 of 162 [2021-04-29 00:40:03,516 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:40:03,778 INFO L129 PetriNetUnfolder]: 414/901 cut-off events. [2021-04-29 00:40:03,779 INFO L130 PetriNetUnfolder]: For 2005/3601 co-relation queries the response was YES. [2021-04-29 00:40:03,782 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4765 conditions, 901 events. 414/901 cut-off events. For 2005/3601 co-relation queries the response was YES. Maximal size of possible extension queue 219. Compared 6672 event pairs, 0 based on Foata normal form. 63/450 useless extension candidates. Maximal degree in co-relation 4747. Up to 838 conditions per place. [2021-04-29 00:40:03,784 INFO L132 encePairwiseOnDemand]: 150/162 looper letters, 0 selfloop transitions, 0 changer transitions 66/66 dead transitions. [2021-04-29 00:40:03,785 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 66 transitions, 618 flow [2021-04-29 00:40:03,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-04-29 00:40:03,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-04-29 00:40:03,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 719 transitions. [2021-04-29 00:40:03,789 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6340388007054674 [2021-04-29 00:40:03,789 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 719 transitions. [2021-04-29 00:40:03,789 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 719 transitions. [2021-04-29 00:40:03,790 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:40:03,790 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 719 transitions. [2021-04-29 00:40:03,792 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 102.71428571428571) internal successors, (719), 7 states have internal predecessors, (719), 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 00:40:03,796 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 162.0) internal successors, (1296), 8 states have internal predecessors, (1296), 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 00:40:03,797 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 162.0) internal successors, (1296), 8 states have internal predecessors, (1296), 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 00:40:03,797 INFO L185 Difference]: Start difference. First operand has 62 places, 57 transitions, 468 flow. Second operand 7 states and 719 transitions. [2021-04-29 00:40:03,797 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 66 transitions, 618 flow [2021-04-29 00:40:03,862 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 66 transitions, 484 flow, removed 45 selfloop flow, removed 7 redundant places. [2021-04-29 00:40:03,864 INFO L241 Difference]: Finished difference. Result has 60 places, 0 transitions, 0 flow [2021-04-29 00:40:03,864 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=162, PETRI_DIFFERENCE_MINUEND_FLOW=346, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=56, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=0, PETRI_PLACES=60, PETRI_TRANSITIONS=0} [2021-04-29 00:40:03,865 INFO L343 CegarLoopForPetriNet]: 78 programPoint places, -18 predicate places. [2021-04-29 00:40:03,865 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:40:03,865 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 60 places, 0 transitions, 0 flow [2021-04-29 00:40:03,866 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 60 places, 0 transitions, 0 flow [2021-04-29 00:40:03,866 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 0 places, 0 transitions, 0 flow [2021-04-29 00:40:03,866 INFO L129 PetriNetUnfolder]: 0/0 cut-off events. [2021-04-29 00:40:03,866 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 00:40:03,867 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 00:40:03,867 INFO L146 LiptonReduction]: Number of co-enabled transitions 0 [2021-04-29 00:40:03,867 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 00:40:03,867 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 00:40:03,867 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 2 [2021-04-29 00:40:03,869 INFO L480 AbstractCegarLoop]: Abstraction has has 0 places, 0 transitions, 0 flow [2021-04-29 00:40:03,869 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 97.83333333333333) internal successors, (587), 6 states have internal predecessors, (587), 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 00:40:03,870 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-04-29 00:40:03,875 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.04 12:40:03 BasicIcfg [2021-04-29 00:40:03,875 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-04-29 00:40:03,877 INFO L168 Benchmark]: Toolchain (without parser) took 28327.59 ms. Allocated memory was 306.2 MB in the beginning and 3.1 GB in the end (delta: 2.8 GB). Free memory was 279.7 MB in the beginning and 2.5 GB in the end (delta: -2.2 GB). Peak memory consumption was 597.1 MB. Max. memory is 16.0 GB. [2021-04-29 00:40:03,878 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 306.2 MB. Free memory was 274.8 MB in the beginning and 274.7 MB in the end (delta: 65.3 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-04-29 00:40:03,879 INFO L168 Benchmark]: CACSL2BoogieTranslator took 803.69 ms. Allocated memory is still 306.2 MB. Free memory was 276.6 MB in the beginning and 275.5 MB in the end (delta: 1.1 MB). Peak memory consumption was 26.9 MB. Max. memory is 16.0 GB. [2021-04-29 00:40:03,879 INFO L168 Benchmark]: Boogie Procedure Inliner took 94.06 ms. Allocated memory is still 306.2 MB. Free memory was 275.5 MB in the beginning and 274.4 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-04-29 00:40:03,880 INFO L168 Benchmark]: Boogie Preprocessor took 58.86 ms. Allocated memory is still 306.2 MB. Free memory was 274.4 MB in the beginning and 272.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-04-29 00:40:03,880 INFO L168 Benchmark]: RCFGBuilder took 593.60 ms. Allocated memory is still 306.2 MB. Free memory was 272.3 MB in the beginning and 248.2 MB in the end (delta: 24.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. [2021-04-29 00:40:03,881 INFO L168 Benchmark]: TraceAbstraction took 26718.62 ms. Allocated memory was 306.2 MB in the beginning and 3.1 GB in the end (delta: 2.8 GB). Free memory was 248.2 MB in the beginning and 2.5 GB in the end (delta: -2.3 GB). Peak memory consumption was 563.8 MB. Max. memory is 16.0 GB. [2021-04-29 00:40:03,884 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 306.2 MB. Free memory was 274.8 MB in the beginning and 274.7 MB in the end (delta: 65.3 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 803.69 ms. Allocated memory is still 306.2 MB. Free memory was 276.6 MB in the beginning and 275.5 MB in the end (delta: 1.1 MB). Peak memory consumption was 26.9 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 94.06 ms. Allocated memory is still 306.2 MB. Free memory was 275.5 MB in the beginning and 274.4 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 58.86 ms. Allocated memory is still 306.2 MB. Free memory was 274.4 MB in the beginning and 272.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 593.60 ms. Allocated memory is still 306.2 MB. Free memory was 272.3 MB in the beginning and 248.2 MB in the end (delta: 24.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. * TraceAbstraction took 26718.62 ms. Allocated memory was 306.2 MB in the beginning and 3.1 GB in the end (delta: 2.8 GB). Free memory was 248.2 MB in the beginning and 2.5 GB in the end (delta: -2.3 GB). Peak memory consumption was 563.8 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 10777.5ms, 67 PlacesBefore, 78 PlacesAfterwards, 58 TransitionsBefore, 68 TransitionsAfterwards, 864 CoEnabledTransitionPairs, 7 FixpointIterations, 45 TrivialSequentialCompositions, 43 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 1 ChoiceCompositions, 89 TotalNumberOfCompositions, 6958 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1689, positive: 1477, positive conditional: 1477, positive unconditional: 0, negative: 212, negative conditional: 212, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 920, positive: 850, positive conditional: 0, positive unconditional: 850, negative: 70, negative conditional: 0, negative unconditional: 70, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 920, positive: 850, positive conditional: 0, positive unconditional: 850, negative: 70, negative conditional: 0, negative unconditional: 70, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 920, positive: 819, positive conditional: 0, positive unconditional: 819, negative: 101, negative conditional: 0, negative unconditional: 101, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 101, positive: 31, positive conditional: 0, positive unconditional: 31, negative: 70, negative conditional: 0, negative unconditional: 70, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 647, positive: 190, positive conditional: 0, positive unconditional: 190, negative: 457, negative conditional: 0, negative unconditional: 457, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1689, positive: 627, positive conditional: 627, positive unconditional: 0, negative: 142, negative conditional: 142, negative unconditional: 0, unknown: 920, unknown conditional: 920, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 917, Positive cache size: 847, Positive conditional cache size: 847, Positive unconditional cache size: 0, Negative cache size: 70, Negative conditional cache size: 70, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 64.1ms, 79 PlacesBefore, 50 PlacesAfterwards, 45 TransitionsBefore, 45 TransitionsAfterwards, 1040 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 24 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 4, positive: 3, positive conditional: 3, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 3, positive: 3, positive conditional: 1, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 3, positive: 3, positive conditional: 1, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 3, positive: 3, positive conditional: 0, positive unconditional: 3, 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: 4, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 3, unknown conditional: 3, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 920, Positive cache size: 850, Positive conditional cache size: 850, Positive unconditional cache size: 0, Negative cache size: 70, Negative conditional cache size: 70, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 65.1ms, 54 PlacesBefore, 54 PlacesAfterwards, 51 TransitionsBefore, 51 TransitionsAfterwards, 1238 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 30 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 4, positive: 3, positive conditional: 3, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 4, positive: 3, positive conditional: 1, positive unconditional: 2, 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: 4, positive: 3, positive conditional: 1, positive unconditional: 2, 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: 4, positive: 3, positive conditional: 0, positive unconditional: 3, 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: 5, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 4, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 4, unknown conditional: 4, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 924, Positive cache size: 853, Positive conditional cache size: 853, Positive unconditional cache size: 0, Negative cache size: 71, Negative conditional cache size: 71, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 77.9ms, 59 PlacesBefore, 59 PlacesAfterwards, 57 TransitionsBefore, 57 TransitionsAfterwards, 1438 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 36 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 6, positive: 5, positive conditional: 5, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 5, positive: 5, positive conditional: 2, positive unconditional: 3, 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: 5, positive: 5, positive conditional: 2, positive unconditional: 3, 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: 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.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: 6, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 5, unknown conditional: 5, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 929, Positive cache size: 858, Positive conditional cache size: 858, Positive unconditional cache size: 0, Negative cache size: 71, Negative conditional cache size: 71, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 63.2ms, 62 PlacesBefore, 62 PlacesAfterwards, 55 TransitionsBefore, 55 TransitionsAfterwards, 1344 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 34 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 7, positive: 6, positive conditional: 6, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 3, positive: 3, positive conditional: 1, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 3, positive: 3, positive conditional: 1, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 3, positive: 3, positive conditional: 0, positive unconditional: 3, 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: 7, positive: 3, positive conditional: 3, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 3, unknown conditional: 3, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 932, Positive cache size: 861, Positive conditional cache size: 861, Positive unconditional cache size: 0, Negative cache size: 71, Negative conditional cache size: 71, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2808.0ms, 67 PlacesBefore, 67 PlacesAfterwards, 80 TransitionsBefore, 80 TransitionsAfterwards, 2000 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): 932, Positive cache size: 861, Positive conditional cache size: 861, Positive unconditional cache size: 0, Negative cache size: 71, Negative conditional cache size: 71, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 138.7ms, 76 PlacesBefore, 62 PlacesAfterwards, 57 TransitionsBefore, 57 TransitionsAfterwards, 676 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): 932, Positive cache size: 861, Positive conditional cache size: 861, Positive unconditional cache size: 0, Negative cache size: 71, Negative conditional cache size: 71, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.7ms, 60 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): 932, Positive cache size: 861, Positive conditional cache size: 861, Positive unconditional cache size: 0, Negative cache size: 71, Negative conditional cache size: 71, 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, 72 locations, 1 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 13.0ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 26430.1ms, OverallIterations: 7, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 11052.8ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 11011.1ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 65 SDtfs, 49 SDslu, 22 SDs, 0 SdLazy, 280 SolverSat, 102 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 406.5ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 130.1ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=505occurred in iteration=5, InterpolantAutomatonStates: 33, 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: 28.0ms SsaConstructionTime, 222.2ms SatisfiabilityAnalysisTime, 551.6ms InterpolantComputationTime, 75 NumberOfCodeBlocks, 75 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 68 ConstructedInterpolants, 0 QuantifiedInterpolants, 392 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! Received shutdown request...