/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/mix041_pso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-6f4246e9f5583d222ebb38ff8175c901f3a528f0-6f4246e [2021-04-28 20:57:11,533 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-04-28 20:57:11,536 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-04-28 20:57:11,570 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-04-28 20:57:11,571 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-04-28 20:57:11,572 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-04-28 20:57:11,574 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-04-28 20:57:11,577 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-04-28 20:57:11,579 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-04-28 20:57:11,580 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-04-28 20:57:11,581 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-04-28 20:57:11,583 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-04-28 20:57:11,583 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-04-28 20:57:11,585 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-04-28 20:57:11,586 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-04-28 20:57:11,588 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-04-28 20:57:11,589 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-04-28 20:57:11,590 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-04-28 20:57:11,593 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-04-28 20:57:11,595 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-04-28 20:57:11,597 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-04-28 20:57:11,604 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-04-28 20:57:11,605 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-04-28 20:57:11,606 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-04-28 20:57:11,609 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-04-28 20:57:11,610 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-04-28 20:57:11,610 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-04-28 20:57:11,611 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-04-28 20:57:11,612 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-04-28 20:57:11,613 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-04-28 20:57:11,613 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-04-28 20:57:11,614 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-04-28 20:57:11,615 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-04-28 20:57:11,616 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-04-28 20:57:11,617 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-04-28 20:57:11,618 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-04-28 20:57:11,618 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-04-28 20:57:11,619 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-04-28 20:57:11,619 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-04-28 20:57:11,620 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-04-28 20:57:11,621 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-04-28 20:57:11,622 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 [2021-04-28 20:57:11,649 INFO L113 SettingsManager]: Loading preferences was successful [2021-04-28 20:57:11,650 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-04-28 20:57:11,651 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-04-28 20:57:11,652 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-04-28 20:57:11,652 INFO L138 SettingsManager]: * Use SBE=true [2021-04-28 20:57:11,652 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-04-28 20:57:11,653 INFO L138 SettingsManager]: * sizeof long=4 [2021-04-28 20:57:11,654 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-04-28 20:57:11,654 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-04-28 20:57:11,655 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-04-28 20:57:11,655 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-04-28 20:57:11,655 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-04-28 20:57:11,655 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-04-28 20:57:11,656 INFO L138 SettingsManager]: * sizeof long double=12 [2021-04-28 20:57:11,658 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-04-28 20:57:11,658 INFO L138 SettingsManager]: * Use constant arrays=true [2021-04-28 20:57:11,659 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-04-28 20:57:11,659 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-04-28 20:57:11,659 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-04-28 20:57:11,660 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-04-28 20:57:11,660 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-04-28 20:57:11,660 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-04-28 20:57:11,661 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-04-28 20:57:11,661 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-04-28 20:57:11,663 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-04-28 20:57:11,663 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-04-28 20:57:11,664 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-04-28 20:57:11,664 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=SEMANTIC_BASED_MOVER_CHECK_WITH_PREDICATES [2021-04-28 20:57:11,664 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-04-28 20:57:11,665 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-04-28 20:57:11,665 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-04-28 20:57:12,073 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-04-28 20:57:12,103 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-04-28 20:57:12,106 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-04-28 20:57:12,108 INFO L271 PluginConnector]: Initializing CDTParser... [2021-04-28 20:57:12,110 INFO L275 PluginConnector]: CDTParser initialized [2021-04-28 20:57:12,111 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/mix041_pso.opt.i [2021-04-28 20:57:12,203 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0ee53d810/ba2cc59f9a824b73af708e5132d52048/FLAGa44cd2b38 [2021-04-28 20:57:12,866 INFO L306 CDTParser]: Found 1 translation units. [2021-04-28 20:57:12,867 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix041_pso.opt.i [2021-04-28 20:57:12,898 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0ee53d810/ba2cc59f9a824b73af708e5132d52048/FLAGa44cd2b38 [2021-04-28 20:57:13,124 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0ee53d810/ba2cc59f9a824b73af708e5132d52048 [2021-04-28 20:57:13,127 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-04-28 20:57:13,174 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-04-28 20:57:13,177 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-04-28 20:57:13,177 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-04-28 20:57:13,182 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-04-28 20:57:13,183 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.04 08:57:13" (1/1) ... [2021-04-28 20:57:13,185 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5c6f092a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 08:57:13, skipping insertion in model container [2021-04-28 20:57:13,186 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.04 08:57:13" (1/1) ... [2021-04-28 20:57:13,195 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-04-28 20:57:13,243 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-04-28 20:57:13,421 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/mix041_pso.opt.i[948,961] [2021-04-28 20:57:13,781 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-28 20:57:13,795 INFO L203 MainTranslator]: Completed pre-run [2021-04-28 20:57:13,815 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/mix041_pso.opt.i[948,961] [2021-04-28 20:57:13,867 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-28 20:57:13,991 INFO L208 MainTranslator]: Completed translation [2021-04-28 20:57:13,991 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 08:57:13 WrapperNode [2021-04-28 20:57:13,991 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-04-28 20:57:13,993 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-04-28 20:57:13,993 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-04-28 20:57:13,993 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-04-28 20:57:14,003 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 08:57:13" (1/1) ... [2021-04-28 20:57:14,024 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 08:57:13" (1/1) ... [2021-04-28 20:57:14,062 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-04-28 20:57:14,063 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-04-28 20:57:14,063 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-04-28 20:57:14,063 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-04-28 20:57:14,074 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 08:57:13" (1/1) ... [2021-04-28 20:57:14,074 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 08:57:13" (1/1) ... [2021-04-28 20:57:14,079 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 08:57:13" (1/1) ... [2021-04-28 20:57:14,079 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 08:57:13" (1/1) ... [2021-04-28 20:57:14,090 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 08:57:13" (1/1) ... [2021-04-28 20:57:14,094 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 08:57:13" (1/1) ... [2021-04-28 20:57:14,098 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 08:57:13" (1/1) ... [2021-04-28 20:57:14,104 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-04-28 20:57:14,106 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-04-28 20:57:14,106 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-04-28 20:57:14,106 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-04-28 20:57:14,107 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 08:57:13" (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 [2021-04-28 20:57:14,210 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-04-28 20:57:14,211 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-04-28 20:57:14,211 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-04-28 20:57:14,211 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-04-28 20:57:14,211 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-04-28 20:57:14,212 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-04-28 20:57:14,212 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-04-28 20:57:14,212 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-04-28 20:57:14,212 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-04-28 20:57:14,213 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-04-28 20:57:14,213 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-04-28 20:57:14,213 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-04-28 20:57:14,215 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-04-28 20:57:17,049 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-04-28 20:57:17,049 INFO L299 CfgBuilder]: Removed 10 assume(true) statements. [2021-04-28 20:57:17,051 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.04 08:57:17 BoogieIcfgContainer [2021-04-28 20:57:17,052 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-04-28 20:57:17,053 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-04-28 20:57:17,054 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-04-28 20:57:17,057 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-04-28 20:57:17,058 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.04 08:57:13" (1/3) ... [2021-04-28 20:57:17,058 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b46bbe8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.04 08:57:17, skipping insertion in model container [2021-04-28 20:57:17,059 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 08:57:13" (2/3) ... [2021-04-28 20:57:17,059 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b46bbe8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.04 08:57:17, skipping insertion in model container [2021-04-28 20:57:17,059 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.04 08:57:17" (3/3) ... [2021-04-28 20:57:17,061 INFO L111 eAbstractionObserver]: Analyzing ICFG mix041_pso.opt.i [2021-04-28 20:57:17,069 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-04-28 20:57:17,074 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2021-04-28 20:57:17,075 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-04-28 20:57:17,117 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:57:17,118 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:57:17,118 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:57:17,118 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:57:17,118 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:57:17,119 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:57:17,119 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:57:17,119 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:57:17,119 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:57:17,120 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:57:17,120 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:57:17,120 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:57:17,120 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:57:17,120 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:57:17,120 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:57:17,121 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:57:17,121 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:57:17,121 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:57:17,122 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:57:17,122 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:57:17,122 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:57:17,122 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:57:17,123 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:57:17,123 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:57:17,123 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:57:17,123 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:57:17,124 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:57:17,124 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:57:17,124 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:57:17,125 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:57:17,125 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:57:17,125 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:57:17,125 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:57:17,126 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:57:17,126 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:57:17,126 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:57:17,126 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:57:17,127 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:57:17,127 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:57:17,127 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:57:17,127 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:57:17,128 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:57:17,128 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:57:17,128 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:57:17,129 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:57:17,129 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:57:17,129 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:57:17,129 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:57:17,129 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:57:17,130 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:57:17,130 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:57:17,130 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:57:17,130 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:57:17,131 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:57:17,131 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:57:17,131 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:57:17,132 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:57:17,132 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:57:17,132 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:57:17,132 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:57:17,135 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:57:17,135 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:57:17,135 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:57:17,135 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:57:17,136 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:57:17,136 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:57:17,136 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:57:17,136 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:57:17,137 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:57:17,137 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:57:17,137 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:57:17,137 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:57:17,140 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:57:17,140 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:57:17,140 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:57:17,140 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:57:17,141 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:57:17,141 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:57:17,141 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:57:17,141 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:57:17,142 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:57:17,142 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:57:17,144 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-04-28 20:57:17,168 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-04-28 20:57:17,195 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-04-28 20:57:17,195 INFO L377 AbstractCegarLoop]: Hoare is false [2021-04-28 20:57:17,196 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-04-28 20:57:17,196 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-04-28 20:57:17,196 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-04-28 20:57:17,196 INFO L381 AbstractCegarLoop]: Difference is false [2021-04-28 20:57:17,196 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-04-28 20:57:17,197 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-04-28 20:57:17,211 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 89 places, 84 transitions, 178 flow [2021-04-28 20:57:17,264 INFO L129 PetriNetUnfolder]: 2/82 cut-off events. [2021-04-28 20:57:17,264 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 20:57:17,269 INFO L84 FinitePrefix]: Finished finitePrefix Result has 89 conditions, 82 events. 2/82 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 54 event pairs, 0 based on Foata normal form. 0/78 useless extension candidates. Maximal degree in co-relation 48. Up to 2 conditions per place. [2021-04-28 20:57:17,269 INFO L82 GeneralOperation]: Start removeDead. Operand has 89 places, 84 transitions, 178 flow [2021-04-28 20:57:17,275 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 87 places, 82 transitions, 170 flow [2021-04-28 20:57:17,277 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 20:57:17,296 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 87 places, 82 transitions, 170 flow [2021-04-28 20:57:17,301 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 87 places, 82 transitions, 170 flow [2021-04-28 20:57:17,303 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 87 places, 82 transitions, 170 flow [2021-04-28 20:57:17,328 INFO L129 PetriNetUnfolder]: 2/82 cut-off events. [2021-04-28 20:57:17,328 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 20:57:17,329 INFO L84 FinitePrefix]: Finished finitePrefix Result has 89 conditions, 82 events. 2/82 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 53 event pairs, 0 based on Foata normal form. 0/78 useless extension candidates. Maximal degree in co-relation 48. Up to 2 conditions per place. [2021-04-28 20:57:17,333 INFO L146 LiptonReduction]: Number of co-enabled transitions 1046 [2021-04-28 20:57:17,974 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 51 [2021-04-28 20:57:23,134 WARN L205 SmtUtils]: Spent 1.63 s on a formula simplification. DAG size of input: 226 DAG size of output: 186 [2021-04-28 20:57:23,849 WARN L205 SmtUtils]: Spent 712.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2021-04-28 20:57:27,225 WARN L205 SmtUtils]: Spent 3.37 s on a formula simplification. DAG size of input: 310 DAG size of output: 266 [2021-04-28 20:57:28,779 WARN L205 SmtUtils]: Spent 1.55 s on a formula simplification that was a NOOP. DAG size: 263 [2021-04-28 20:57:29,392 WARN L205 SmtUtils]: Spent 452.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 60 [2021-04-28 20:57:29,586 WARN L205 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 59 [2021-04-28 20:57:30,399 WARN L205 SmtUtils]: Spent 807.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 86 [2021-04-28 20:57:30,715 WARN L205 SmtUtils]: Spent 314.00 ms on a formula simplification that was a NOOP. DAG size: 83 [2021-04-28 20:57:34,129 WARN L205 SmtUtils]: Spent 1.69 s on a formula simplification. DAG size of input: 228 DAG size of output: 187 [2021-04-28 20:57:34,850 WARN L205 SmtUtils]: Spent 719.00 ms on a formula simplification that was a NOOP. DAG size: 185 [2021-04-28 20:57:38,258 WARN L205 SmtUtils]: Spent 3.40 s on a formula simplification. DAG size of input: 312 DAG size of output: 267 [2021-04-28 20:57:39,751 WARN L205 SmtUtils]: Spent 1.49 s on a formula simplification that was a NOOP. DAG size: 264 [2021-04-28 20:57:41,416 WARN L205 SmtUtils]: Spent 1.66 s on a formula simplification. DAG size of input: 226 DAG size of output: 185 [2021-04-28 20:57:42,147 WARN L205 SmtUtils]: Spent 728.00 ms on a formula simplification that was a NOOP. DAG size: 183 [2021-04-28 20:57:45,462 WARN L205 SmtUtils]: Spent 3.31 s on a formula simplification. DAG size of input: 310 DAG size of output: 265 [2021-04-28 20:57:47,022 WARN L205 SmtUtils]: Spent 1.56 s on a formula simplification that was a NOOP. DAG size: 262 [2021-04-28 20:57:48,771 WARN L205 SmtUtils]: Spent 1.74 s on a formula simplification. DAG size of input: 230 DAG size of output: 190 [2021-04-28 20:57:49,584 WARN L205 SmtUtils]: Spent 810.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2021-04-28 20:57:53,158 WARN L205 SmtUtils]: Spent 3.57 s on a formula simplification. DAG size of input: 314 DAG size of output: 270 [2021-04-28 20:57:54,850 WARN L205 SmtUtils]: Spent 1.69 s on a formula simplification that was a NOOP. DAG size: 267 [2021-04-28 20:57:58,681 WARN L205 SmtUtils]: Spent 1.84 s on a formula simplification. DAG size of input: 226 DAG size of output: 186 [2021-04-28 20:57:59,535 WARN L205 SmtUtils]: Spent 851.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2021-04-28 20:58:03,316 WARN L205 SmtUtils]: Spent 3.78 s on a formula simplification. DAG size of input: 310 DAG size of output: 265 [2021-04-28 20:58:05,106 WARN L205 SmtUtils]: Spent 1.79 s on a formula simplification that was a NOOP. DAG size: 262 [2021-04-28 20:58:08,201 WARN L205 SmtUtils]: Spent 3.09 s on a formula simplification. DAG size of input: 229 DAG size of output: 188 [2021-04-28 20:58:09,150 WARN L205 SmtUtils]: Spent 947.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2021-04-28 20:58:13,521 WARN L205 SmtUtils]: Spent 4.37 s on a formula simplification. DAG size of input: 313 DAG size of output: 269 [2021-04-28 20:58:15,628 WARN L205 SmtUtils]: Spent 2.10 s on a formula simplification that was a NOOP. DAG size: 266 [2021-04-28 20:58:17,831 WARN L205 SmtUtils]: Spent 2.20 s on a formula simplification. DAG size of input: 228 DAG size of output: 188 [2021-04-28 20:58:18,770 WARN L205 SmtUtils]: Spent 937.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2021-04-28 20:58:22,937 WARN L205 SmtUtils]: Spent 4.16 s on a formula simplification. DAG size of input: 312 DAG size of output: 268 [2021-04-28 20:58:24,876 WARN L205 SmtUtils]: Spent 1.94 s on a formula simplification that was a NOOP. DAG size: 265 [2021-04-28 20:58:28,213 WARN L205 SmtUtils]: Spent 3.33 s on a formula simplification. DAG size of input: 229 DAG size of output: 188 [2021-04-28 20:58:29,179 WARN L205 SmtUtils]: Spent 963.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2021-04-28 20:58:33,614 WARN L205 SmtUtils]: Spent 4.43 s on a formula simplification. DAG size of input: 313 DAG size of output: 269 [2021-04-28 20:58:35,714 WARN L205 SmtUtils]: Spent 2.10 s on a formula simplification that was a NOOP. DAG size: 266 [2021-04-28 20:58:39,357 WARN L205 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 46 [2021-04-28 20:58:39,665 WARN L205 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 46 [2021-04-28 20:58:40,030 WARN L205 SmtUtils]: Spent 273.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 52 [2021-04-28 20:58:40,142 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 48 [2021-04-28 20:58:40,399 WARN L205 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 52 [2021-04-28 20:58:40,518 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 48 [2021-04-28 20:58:40,773 WARN L205 SmtUtils]: Spent 253.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2021-04-28 20:58:40,885 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 46 [2021-04-28 20:58:41,148 WARN L205 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2021-04-28 20:58:41,258 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 46 [2021-04-28 20:58:41,477 WARN L205 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 46 [2021-04-28 20:58:41,787 WARN L205 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 46 [2021-04-28 20:58:42,118 WARN L205 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 48 [2021-04-28 20:58:42,457 WARN L205 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 48 [2021-04-28 20:58:46,272 WARN L205 SmtUtils]: Spent 3.67 s on a formula simplification. DAG size of input: 228 DAG size of output: 187 [2021-04-28 20:58:47,396 WARN L205 SmtUtils]: Spent 1.12 s on a formula simplification that was a NOOP. DAG size: 185 [2021-04-28 20:58:52,418 WARN L205 SmtUtils]: Spent 5.01 s on a formula simplification. DAG size of input: 310 DAG size of output: 266 [2021-04-28 20:58:54,799 WARN L205 SmtUtils]: Spent 2.38 s on a formula simplification that was a NOOP. DAG size: 263 [2021-04-28 20:58:57,472 WARN L205 SmtUtils]: Spent 2.67 s on a formula simplification. DAG size of input: 229 DAG size of output: 189 [2021-04-28 20:58:59,920 WARN L205 SmtUtils]: Spent 2.45 s on a formula simplification. DAG size of input: 187 DAG size of output: 186 [2021-04-28 20:59:05,564 WARN L205 SmtUtils]: Spent 5.64 s on a formula simplification. DAG size of input: 313 DAG size of output: 269 [2021-04-28 20:59:08,195 WARN L205 SmtUtils]: Spent 2.63 s on a formula simplification that was a NOOP. DAG size: 266 [2021-04-28 20:59:11,175 WARN L205 SmtUtils]: Spent 2.93 s on a formula simplification. DAG size of input: 228 DAG size of output: 188 [2021-04-28 20:59:12,506 WARN L205 SmtUtils]: Spent 1.33 s on a formula simplification that was a NOOP. DAG size: 186 [2021-04-28 20:59:18,303 WARN L205 SmtUtils]: Spent 5.79 s on a formula simplification. DAG size of input: 312 DAG size of output: 268 [2021-04-28 20:59:21,117 WARN L205 SmtUtils]: Spent 2.81 s on a formula simplification that was a NOOP. DAG size: 265 [2021-04-28 20:59:21,586 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 37 [2021-04-28 20:59:21,694 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 37 [2021-04-28 20:59:21,798 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 37 [2021-04-28 20:59:21,906 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 37 [2021-04-28 20:59:22,123 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 35 [2021-04-28 20:59:22,225 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 35 [2021-04-28 20:59:23,197 WARN L205 SmtUtils]: Spent 337.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2021-04-28 20:59:23,344 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 46 [2021-04-28 20:59:23,706 WARN L205 SmtUtils]: Spent 359.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2021-04-28 20:59:23,863 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 46 [2021-04-28 20:59:24,254 WARN L205 SmtUtils]: Spent 388.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 56 [2021-04-28 20:59:24,426 WARN L205 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2021-04-28 20:59:24,850 WARN L205 SmtUtils]: Spent 421.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 56 [2021-04-28 20:59:25,038 WARN L205 SmtUtils]: Spent 185.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2021-04-28 20:59:25,330 WARN L205 SmtUtils]: Spent 289.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 46 [2021-04-28 20:59:25,465 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 42 [2021-04-28 20:59:25,767 WARN L205 SmtUtils]: Spent 299.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 46 [2021-04-28 20:59:25,892 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 42 [2021-04-28 20:59:26,279 WARN L205 SmtUtils]: Spent 383.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 54 [2021-04-28 20:59:26,467 WARN L205 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 50 [2021-04-28 20:59:26,853 WARN L205 SmtUtils]: Spent 384.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 54 [2021-04-28 20:59:27,014 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 50 [2021-04-28 20:59:27,216 WARN L205 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 61 [2021-04-28 20:59:27,432 WARN L205 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 61 [2021-04-28 20:59:27,653 WARN L205 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 61 [2021-04-28 20:59:27,864 WARN L205 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 61 [2021-04-28 20:59:27,982 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 36 [2021-04-28 20:59:28,098 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 36 [2021-04-28 20:59:28,215 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 36 [2021-04-28 20:59:28,329 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 36 [2021-04-28 20:59:28,436 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 34 [2021-04-28 20:59:28,539 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 34 [2021-04-28 20:59:28,645 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 34 [2021-04-28 20:59:28,757 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 34 [2021-04-28 20:59:29,219 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 32 [2021-04-28 20:59:29,421 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 32 [2021-04-28 20:59:29,524 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 32 [2021-04-28 20:59:29,638 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 36 [2021-04-28 20:59:29,753 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 36 [2021-04-28 20:59:29,869 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 36 [2021-04-28 20:59:29,986 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 36 [2021-04-28 20:59:30,180 WARN L205 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 55 [2021-04-28 20:59:30,370 WARN L205 SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 55 [2021-04-28 20:59:30,566 WARN L205 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 55 [2021-04-28 20:59:30,759 WARN L205 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 55 [2021-04-28 20:59:31,945 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 36 [2021-04-28 20:59:32,063 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 36 [2021-04-28 20:59:32,179 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 36 [2021-04-28 20:59:32,299 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 36 [2021-04-28 20:59:33,410 WARN L205 SmtUtils]: Spent 444.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2021-04-28 20:59:33,605 WARN L205 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2021-04-28 20:59:34,034 WARN L205 SmtUtils]: Spent 426.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2021-04-28 20:59:34,246 WARN L205 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2021-04-28 20:59:34,544 WARN L205 SmtUtils]: Spent 295.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 46 [2021-04-28 20:59:34,683 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 42 [2021-04-28 20:59:34,974 WARN L205 SmtUtils]: Spent 288.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 46 [2021-04-28 20:59:35,102 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 42 [2021-04-28 20:59:35,535 WARN L205 SmtUtils]: Spent 429.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 54 [2021-04-28 20:59:35,716 WARN L205 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 50 [2021-04-28 20:59:36,137 WARN L205 SmtUtils]: Spent 418.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 54 [2021-04-28 20:59:36,303 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 50 [2021-04-28 20:59:36,785 WARN L205 SmtUtils]: Spent 479.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 60 [2021-04-28 20:59:37,007 WARN L205 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2021-04-28 20:59:37,457 WARN L205 SmtUtils]: Spent 447.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 60 [2021-04-28 20:59:37,662 WARN L205 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2021-04-28 20:59:38,154 WARN L205 SmtUtils]: Spent 490.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 62 [2021-04-28 20:59:38,370 WARN L205 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2021-04-28 20:59:38,852 WARN L205 SmtUtils]: Spent 480.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 62 [2021-04-28 20:59:39,062 WARN L205 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2021-04-28 20:59:39,418 WARN L205 SmtUtils]: Spent 352.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2021-04-28 20:59:39,584 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 46 [2021-04-28 20:59:39,938 WARN L205 SmtUtils]: Spent 352.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2021-04-28 20:59:40,083 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 46 [2021-04-28 20:59:40,571 WARN L205 SmtUtils]: Spent 443.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2021-04-28 20:59:41,010 WARN L205 SmtUtils]: Spent 437.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2021-04-28 20:59:41,452 WARN L205 SmtUtils]: Spent 440.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2021-04-28 20:59:41,891 WARN L205 SmtUtils]: Spent 437.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2021-04-28 20:59:42,252 WARN L205 SmtUtils]: Spent 356.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2021-04-28 20:59:42,601 WARN L205 SmtUtils]: Spent 348.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2021-04-28 20:59:42,991 WARN L205 SmtUtils]: Spent 387.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2021-04-28 20:59:43,368 WARN L205 SmtUtils]: Spent 375.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2021-04-28 20:59:43,611 WARN L205 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 20:59:43,863 WARN L205 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 20:59:44,101 WARN L205 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 20:59:44,346 WARN L205 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 20:59:44,788 WARN L205 SmtUtils]: Spent 439.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2021-04-28 20:59:45,262 WARN L205 SmtUtils]: Spent 471.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2021-04-28 20:59:45,736 WARN L205 SmtUtils]: Spent 471.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2021-04-28 20:59:46,204 WARN L205 SmtUtils]: Spent 465.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2021-04-28 20:59:47,519 WARN L205 SmtUtils]: Spent 1.31 s on a formula simplification. DAG size of input: 112 DAG size of output: 110 [2021-04-28 20:59:48,177 WARN L205 SmtUtils]: Spent 655.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2021-04-28 20:59:49,460 WARN L205 SmtUtils]: Spent 1.28 s on a formula simplification. DAG size of input: 112 DAG size of output: 110 [2021-04-28 20:59:50,068 WARN L205 SmtUtils]: Spent 604.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2021-04-28 20:59:50,370 WARN L205 SmtUtils]: Spent 300.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2021-04-28 20:59:50,643 WARN L205 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2021-04-28 20:59:50,937 WARN L205 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2021-04-28 20:59:51,234 WARN L205 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2021-04-28 20:59:51,611 WARN L205 SmtUtils]: Spent 374.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2021-04-28 20:59:51,983 WARN L205 SmtUtils]: Spent 370.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2021-04-28 20:59:52,360 WARN L205 SmtUtils]: Spent 375.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2021-04-28 20:59:52,765 WARN L205 SmtUtils]: Spent 402.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2021-04-28 20:59:53,116 WARN L205 SmtUtils]: Spent 348.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2021-04-28 20:59:53,441 WARN L205 SmtUtils]: Spent 322.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2021-04-28 20:59:53,804 WARN L205 SmtUtils]: Spent 360.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2021-04-28 20:59:54,166 WARN L205 SmtUtils]: Spent 360.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2021-04-28 20:59:54,448 WARN L205 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2021-04-28 20:59:54,714 WARN L205 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2021-04-28 20:59:55,022 WARN L205 SmtUtils]: Spent 305.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2021-04-28 20:59:55,328 WARN L205 SmtUtils]: Spent 304.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2021-04-28 20:59:55,609 WARN L205 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2021-04-28 20:59:55,891 WARN L205 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2021-04-28 20:59:56,167 WARN L205 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2021-04-28 20:59:56,438 WARN L205 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2021-04-28 20:59:56,891 WARN L205 SmtUtils]: Spent 450.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2021-04-28 20:59:57,349 WARN L205 SmtUtils]: Spent 456.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2021-04-28 20:59:57,813 WARN L205 SmtUtils]: Spent 461.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2021-04-28 20:59:58,279 WARN L205 SmtUtils]: Spent 463.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2021-04-28 20:59:58,745 WARN L205 SmtUtils]: Spent 463.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2021-04-28 20:59:59,187 WARN L205 SmtUtils]: Spent 439.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2021-04-28 20:59:59,626 WARN L205 SmtUtils]: Spent 436.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2021-04-28 21:00:00,052 WARN L205 SmtUtils]: Spent 424.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2021-04-28 21:00:00,305 WARN L205 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-04-28 21:00:00,567 WARN L205 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-04-28 21:00:00,831 WARN L205 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-04-28 21:00:01,076 WARN L205 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-04-28 21:00:01,401 WARN L205 SmtUtils]: Spent 322.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2021-04-28 21:00:01,715 WARN L205 SmtUtils]: Spent 311.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2021-04-28 21:00:02,022 WARN L205 SmtUtils]: Spent 305.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2021-04-28 21:00:02,334 WARN L205 SmtUtils]: Spent 310.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2021-04-28 21:00:02,768 WARN L205 SmtUtils]: Spent 430.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2021-04-28 21:00:03,173 WARN L205 SmtUtils]: Spent 402.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2021-04-28 21:00:03,587 WARN L205 SmtUtils]: Spent 411.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2021-04-28 21:00:04,007 WARN L205 SmtUtils]: Spent 418.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2021-04-28 21:00:04,368 WARN L205 SmtUtils]: Spent 358.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2021-04-28 21:00:04,747 WARN L205 SmtUtils]: Spent 376.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2021-04-28 21:00:05,131 WARN L205 SmtUtils]: Spent 382.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2021-04-28 21:00:05,500 WARN L205 SmtUtils]: Spent 367.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2021-04-28 21:00:05,903 WARN L205 SmtUtils]: Spent 399.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2021-04-28 21:00:06,291 WARN L205 SmtUtils]: Spent 386.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2021-04-28 21:00:06,712 WARN L205 SmtUtils]: Spent 419.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2021-04-28 21:00:07,173 WARN L205 SmtUtils]: Spent 458.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2021-04-28 21:00:08,484 WARN L205 SmtUtils]: Spent 1.31 s on a formula simplification. DAG size of input: 107 DAG size of output: 105 [2021-04-28 21:00:09,089 WARN L205 SmtUtils]: Spent 602.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2021-04-28 21:00:10,377 WARN L205 SmtUtils]: Spent 1.29 s on a formula simplification. DAG size of input: 107 DAG size of output: 105 [2021-04-28 21:00:10,967 WARN L205 SmtUtils]: Spent 587.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2021-04-28 21:00:11,235 WARN L205 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2021-04-28 21:00:11,499 WARN L205 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2021-04-28 21:00:11,760 WARN L205 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2021-04-28 21:00:12,026 WARN L205 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2021-04-28 21:00:12,482 WARN L205 SmtUtils]: Spent 453.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2021-04-28 21:00:12,917 WARN L205 SmtUtils]: Spent 433.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2021-04-28 21:00:13,347 WARN L205 SmtUtils]: Spent 427.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2021-04-28 21:00:13,770 WARN L205 SmtUtils]: Spent 421.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2021-04-28 21:00:14,216 WARN L205 SmtUtils]: Spent 442.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2021-04-28 21:00:14,660 WARN L205 SmtUtils]: Spent 441.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2021-04-28 21:00:15,109 WARN L205 SmtUtils]: Spent 446.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2021-04-28 21:00:15,536 WARN L205 SmtUtils]: Spent 425.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2021-04-28 21:00:15,847 WARN L205 SmtUtils]: Spent 307.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2021-04-28 21:00:16,176 WARN L205 SmtUtils]: Spent 327.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2021-04-28 21:00:16,501 WARN L205 SmtUtils]: Spent 323.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2021-04-28 21:00:16,824 WARN L205 SmtUtils]: Spent 320.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2021-04-28 21:00:17,246 WARN L205 SmtUtils]: Spent 418.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2021-04-28 21:00:17,691 WARN L205 SmtUtils]: Spent 443.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2021-04-28 21:00:18,156 WARN L205 SmtUtils]: Spent 463.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2021-04-28 21:00:18,604 WARN L205 SmtUtils]: Spent 446.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2021-04-28 21:00:18,650 INFO L158 LiptonReduction]: Checked pairs total: 9587 [2021-04-28 21:00:18,650 INFO L160 LiptonReduction]: Total number of compositions: 198 [2021-04-28 21:00:18,656 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 181380 [2021-04-28 21:00:18,681 INFO L129 PetriNetUnfolder]: 2/71 cut-off events. [2021-04-28 21:00:18,682 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 21:00:18,682 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 21:00:18,683 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2021-04-28 21:00:18,684 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 21:00:18,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 21:00:18,693 INFO L82 PathProgramCache]: Analyzing trace with hash 988877312, now seen corresponding path program 1 times [2021-04-28 21:00:18,706 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 21:00:18,707 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1478894661] [2021-04-28 21:00:18,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 21:00:18,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 21:00:19,045 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 21:00:19,053 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 21:00:19,070 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 21:00:19,071 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1478894661] [2021-04-28 21:00:19,071 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 21:00:19,071 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-28 21:00:19,072 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1344514635] [2021-04-28 21:00:19,083 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-28 21:00:19,083 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 21:00:19,097 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-28 21:00:19,099 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-28 21:00:19,102 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 212 out of 282 [2021-04-28 21:00:19,108 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 114 places, 109 transitions, 224 flow. Second operand has 3 states, 3 states have (on average 212.66666666666666) internal successors, (638), 3 states have internal predecessors, (638), 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) [2021-04-28 21:00:19,108 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 21:00:19,109 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 212 of 282 [2021-04-28 21:00:19,110 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 21:00:19,891 INFO L129 PetriNetUnfolder]: 212/553 cut-off events. [2021-04-28 21:00:19,891 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 21:00:19,893 INFO L84 FinitePrefix]: Finished finitePrefix Result has 955 conditions, 553 events. 212/553 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 121. Compared 3882 event pairs, 48 based on Foata normal form. 10/206 useless extension candidates. Maximal degree in co-relation 888. Up to 333 conditions per place. [2021-04-28 21:00:19,898 INFO L132 encePairwiseOnDemand]: 262/282 looper letters, 7 selfloop transitions, 4 changer transitions 85/121 dead transitions. [2021-04-28 21:00:19,898 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 113 places, 121 transitions, 350 flow [2021-04-28 21:00:19,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-28 21:00:19,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-28 21:00:19,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 689 transitions. [2021-04-28 21:00:19,930 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8144208037825059 [2021-04-28 21:00:19,931 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 689 transitions. [2021-04-28 21:00:19,932 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 689 transitions. [2021-04-28 21:00:19,936 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 21:00:19,939 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 689 transitions. [2021-04-28 21:00:19,949 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 229.66666666666666) internal successors, (689), 3 states have internal predecessors, (689), 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) [2021-04-28 21:00:19,978 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 282.0) internal successors, (1128), 4 states have internal predecessors, (1128), 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) [2021-04-28 21:00:19,981 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 282.0) internal successors, (1128), 4 states have internal predecessors, (1128), 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) [2021-04-28 21:00:19,984 INFO L185 Difference]: Start difference. First operand has 114 places, 109 transitions, 224 flow. Second operand 3 states and 689 transitions. [2021-04-28 21:00:19,991 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 113 places, 121 transitions, 350 flow [2021-04-28 21:00:19,995 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 111 places, 121 transitions, 348 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-04-28 21:00:20,000 INFO L241 Difference]: Finished difference. Result has 111 places, 33 transitions, 78 flow [2021-04-28 21:00:20,003 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=282, PETRI_DIFFERENCE_MINUEND_FLOW=212, PETRI_DIFFERENCE_MINUEND_PLACES=109, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=104, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=100, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=78, PETRI_PLACES=111, PETRI_TRANSITIONS=33} [2021-04-28 21:00:20,004 INFO L343 CegarLoopForPetriNet]: 114 programPoint places, -3 predicate places. [2021-04-28 21:00:20,004 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 21:00:20,004 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 111 places, 33 transitions, 78 flow [2021-04-28 21:00:20,007 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 111 places, 33 transitions, 78 flow [2021-04-28 21:00:20,008 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 40 places, 33 transitions, 78 flow [2021-04-28 21:00:20,015 INFO L129 PetriNetUnfolder]: 0/33 cut-off events. [2021-04-28 21:00:20,016 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 21:00:20,016 INFO L84 FinitePrefix]: Finished finitePrefix Result has 43 conditions, 33 events. 0/33 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 110 event pairs, 0 based on Foata normal form. 0/17 useless extension candidates. Maximal degree in co-relation 0. Up to 4 conditions per place. [2021-04-28 21:00:20,017 INFO L146 LiptonReduction]: Number of co-enabled transitions 576 [2021-04-28 21:00:20,627 INFO L158 LiptonReduction]: Checked pairs total: 498 [2021-04-28 21:00:20,627 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 21:00:20,627 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 623 [2021-04-28 21:00:20,629 INFO L480 AbstractCegarLoop]: Abstraction has has 40 places, 33 transitions, 78 flow [2021-04-28 21:00:20,630 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 212.66666666666666) internal successors, (638), 3 states have internal predecessors, (638), 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) [2021-04-28 21:00:20,630 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 21:00:20,630 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-04-28 21:00:20,630 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-04-28 21:00:20,631 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 21:00:20,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 21:00:20,631 INFO L82 PathProgramCache]: Analyzing trace with hash 1123424408, now seen corresponding path program 1 times [2021-04-28 21:00:20,632 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 21:00:20,632 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [649935103] [2021-04-28 21:00:20,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 21:00:20,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 21:00:20,792 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 21:00:20,794 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 21:00:20,804 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 21:00:20,805 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [649935103] [2021-04-28 21:00:20,805 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 21:00:20,805 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-28 21:00:20,805 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1067476764] [2021-04-28 21:00:20,807 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-28 21:00:20,807 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 21:00:20,808 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-28 21:00:20,809 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-28 21:00:20,812 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 199 out of 282 [2021-04-28 21:00:20,814 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 33 transitions, 78 flow. Second operand has 3 states, 3 states have (on average 199.66666666666666) internal successors, (599), 3 states have internal predecessors, (599), 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) [2021-04-28 21:00:20,815 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 21:00:20,815 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 199 of 282 [2021-04-28 21:00:20,815 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 21:00:20,844 INFO L129 PetriNetUnfolder]: 0/33 cut-off events. [2021-04-28 21:00:20,844 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 21:00:20,844 INFO L84 FinitePrefix]: Finished finitePrefix Result has 47 conditions, 33 events. 0/33 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 114 event pairs, 0 based on Foata normal form. 1/18 useless extension candidates. Maximal degree in co-relation 0. Up to 4 conditions per place. [2021-04-28 21:00:20,845 INFO L132 encePairwiseOnDemand]: 279/282 looper letters, 1 selfloop transitions, 2 changer transitions 12/33 dead transitions. [2021-04-28 21:00:20,845 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 33 transitions, 84 flow [2021-04-28 21:00:20,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-28 21:00:20,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-28 21:00:20,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 601 transitions. [2021-04-28 21:00:20,853 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.710401891252955 [2021-04-28 21:00:20,853 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 601 transitions. [2021-04-28 21:00:20,853 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 601 transitions. [2021-04-28 21:00:20,854 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 21:00:20,854 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 601 transitions. [2021-04-28 21:00:20,857 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 200.33333333333334) internal successors, (601), 3 states have internal predecessors, (601), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:00:20,862 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 282.0) internal successors, (1128), 4 states have internal predecessors, (1128), 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) [2021-04-28 21:00:20,864 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 282.0) internal successors, (1128), 4 states have internal predecessors, (1128), 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) [2021-04-28 21:00:20,864 INFO L185 Difference]: Start difference. First operand has 40 places, 33 transitions, 78 flow. Second operand 3 states and 601 transitions. [2021-04-28 21:00:20,864 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 33 transitions, 84 flow [2021-04-28 21:00:20,865 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 33 transitions, 76 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-04-28 21:00:20,866 INFO L241 Difference]: Finished difference. Result has 41 places, 21 transitions, 54 flow [2021-04-28 21:00:20,867 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=282, PETRI_DIFFERENCE_MINUEND_FLOW=70, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=54, PETRI_PLACES=41, PETRI_TRANSITIONS=21} [2021-04-28 21:00:20,867 INFO L343 CegarLoopForPetriNet]: 114 programPoint places, -73 predicate places. [2021-04-28 21:00:20,867 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 21:00:20,868 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 41 places, 21 transitions, 54 flow [2021-04-28 21:00:20,869 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 41 places, 21 transitions, 54 flow [2021-04-28 21:00:20,869 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 29 places, 21 transitions, 54 flow [2021-04-28 21:00:20,877 INFO L129 PetriNetUnfolder]: 0/21 cut-off events. [2021-04-28 21:00:20,877 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 21:00:20,878 INFO L84 FinitePrefix]: Finished finitePrefix Result has 32 conditions, 21 events. 0/21 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 37 event pairs, 0 based on Foata normal form. 0/16 useless extension candidates. Maximal degree in co-relation 0. Up to 3 conditions per place. [2021-04-28 21:00:20,879 INFO L146 LiptonReduction]: Number of co-enabled transitions 206 [2021-04-28 21:00:21,438 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 51 [2021-04-28 21:00:21,543 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 51 [2021-04-28 21:00:21,663 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2021-04-28 21:00:21,778 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2021-04-28 21:00:22,146 INFO L158 LiptonReduction]: Checked pairs total: 502 [2021-04-28 21:00:22,146 INFO L160 LiptonReduction]: Total number of compositions: 1 [2021-04-28 21:00:22,147 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1280 [2021-04-28 21:00:22,152 INFO L480 AbstractCegarLoop]: Abstraction has has 29 places, 21 transitions, 54 flow [2021-04-28 21:00:22,153 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 199.66666666666666) internal successors, (599), 3 states have internal predecessors, (599), 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) [2021-04-28 21:00:22,154 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 21:00:22,154 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 21:00:22,154 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-04-28 21:00:22,154 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 21:00:22,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 21:00:22,155 INFO L82 PathProgramCache]: Analyzing trace with hash 1505364872, now seen corresponding path program 1 times [2021-04-28 21:00:22,155 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 21:00:22,157 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [694584950] [2021-04-28 21:00:22,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 21:00:22,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 21:00:22,305 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 21:00:22,308 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-28 21:00:22,335 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 21:00:22,337 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-28 21:00:22,368 INFO L142 QuantifierPusher]: treesize reduction 4, result has 73.3 percent of original size [2021-04-28 21:00:22,370 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 21:00:22,401 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 21:00:22,402 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [694584950] [2021-04-28 21:00:22,402 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 21:00:22,403 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-28 21:00:22,403 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1937190862] [2021-04-28 21:00:22,404 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-04-28 21:00:22,404 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 21:00:22,405 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-04-28 21:00:22,405 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-04-28 21:00:22,406 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 173 out of 283 [2021-04-28 21:00:22,408 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 29 places, 21 transitions, 54 flow. Second operand has 5 states, 5 states have (on average 173.8) internal successors, (869), 5 states have internal predecessors, (869), 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) [2021-04-28 21:00:22,408 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 21:00:22,408 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 173 of 283 [2021-04-28 21:00:22,408 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 21:00:22,647 INFO L129 PetriNetUnfolder]: 32/101 cut-off events. [2021-04-28 21:00:22,648 INFO L130 PetriNetUnfolder]: For 10/10 co-relation queries the response was YES. [2021-04-28 21:00:22,648 INFO L84 FinitePrefix]: Finished finitePrefix Result has 192 conditions, 101 events. 32/101 cut-off events. For 10/10 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 436 event pairs, 2 based on Foata normal form. 2/85 useless extension candidates. Maximal degree in co-relation 182. Up to 49 conditions per place. [2021-04-28 21:00:22,649 INFO L132 encePairwiseOnDemand]: 276/283 looper letters, 9 selfloop transitions, 8 changer transitions 3/33 dead transitions. [2021-04-28 21:00:22,650 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 33 transitions, 124 flow [2021-04-28 21:00:22,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-04-28 21:00:22,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-04-28 21:00:22,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 887 transitions. [2021-04-28 21:00:22,657 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6268551236749117 [2021-04-28 21:00:22,658 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 887 transitions. [2021-04-28 21:00:22,658 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 887 transitions. [2021-04-28 21:00:22,659 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 21:00:22,659 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 887 transitions. [2021-04-28 21:00:22,661 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 177.4) internal successors, (887), 5 states have internal predecessors, (887), 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) [2021-04-28 21:00:22,665 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 283.0) internal successors, (1698), 6 states have internal predecessors, (1698), 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) [2021-04-28 21:00:22,667 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 283.0) internal successors, (1698), 6 states have internal predecessors, (1698), 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) [2021-04-28 21:00:22,667 INFO L185 Difference]: Start difference. First operand has 29 places, 21 transitions, 54 flow. Second operand 5 states and 887 transitions. [2021-04-28 21:00:22,667 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 33 transitions, 124 flow [2021-04-28 21:00:22,668 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 33 transitions, 116 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-04-28 21:00:22,669 INFO L241 Difference]: Finished difference. Result has 33 places, 27 transitions, 100 flow [2021-04-28 21:00:22,670 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=283, PETRI_DIFFERENCE_MINUEND_FLOW=50, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=100, PETRI_PLACES=33, PETRI_TRANSITIONS=27} [2021-04-28 21:00:22,670 INFO L343 CegarLoopForPetriNet]: 114 programPoint places, -81 predicate places. [2021-04-28 21:00:22,670 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 21:00:22,671 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 33 places, 27 transitions, 100 flow [2021-04-28 21:00:22,671 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 33 places, 27 transitions, 100 flow [2021-04-28 21:00:22,672 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 32 places, 27 transitions, 100 flow [2021-04-28 21:00:22,681 INFO L129 PetriNetUnfolder]: 5/40 cut-off events. [2021-04-28 21:00:22,681 INFO L130 PetriNetUnfolder]: For 11/13 co-relation queries the response was YES. [2021-04-28 21:00:22,681 INFO L84 FinitePrefix]: Finished finitePrefix Result has 82 conditions, 40 events. 5/40 cut-off events. For 11/13 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 126 event pairs, 0 based on Foata normal form. 1/32 useless extension candidates. Maximal degree in co-relation 72. Up to 10 conditions per place. [2021-04-28 21:00:22,682 INFO L146 LiptonReduction]: Number of co-enabled transitions 210 [2021-04-28 21:00:22,897 INFO L158 LiptonReduction]: Checked pairs total: 126 [2021-04-28 21:00:22,897 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 21:00:22,897 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 227 [2021-04-28 21:00:22,899 INFO L480 AbstractCegarLoop]: Abstraction has has 32 places, 27 transitions, 100 flow [2021-04-28 21:00:22,900 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 173.8) internal successors, (869), 5 states have internal predecessors, (869), 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) [2021-04-28 21:00:22,900 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 21:00:22,900 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 21:00:22,900 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-04-28 21:00:22,901 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 21:00:22,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 21:00:22,901 INFO L82 PathProgramCache]: Analyzing trace with hash 1549621432, now seen corresponding path program 1 times [2021-04-28 21:00:22,901 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 21:00:22,901 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1084224826] [2021-04-28 21:00:22,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 21:00:23,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 21:00:23,116 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 21:00:23,120 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 21:00:23,144 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 21:00:23,146 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 21:00:23,149 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 21:00:23,151 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-28 21:00:23,189 INFO L142 QuantifierPusher]: treesize reduction 10, result has 81.5 percent of original size [2021-04-28 21:00:23,191 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-04-28 21:00:23,265 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 21:00:23,265 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1084224826] [2021-04-28 21:00:23,266 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 21:00:23,266 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-28 21:00:23,266 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1636322555] [2021-04-28 21:00:23,267 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-04-28 21:00:23,267 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 21:00:23,268 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-04-28 21:00:23,268 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-04-28 21:00:23,272 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 167 out of 283 [2021-04-28 21:00:23,274 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 27 transitions, 100 flow. Second operand has 5 states, 5 states have (on average 168.0) internal successors, (840), 5 states have internal predecessors, (840), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:00:23,275 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 21:00:23,275 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 167 of 283 [2021-04-28 21:00:23,275 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 21:00:23,575 INFO L129 PetriNetUnfolder]: 26/79 cut-off events. [2021-04-28 21:00:23,576 INFO L130 PetriNetUnfolder]: For 47/47 co-relation queries the response was YES. [2021-04-28 21:00:23,578 INFO L84 FinitePrefix]: Finished finitePrefix Result has 216 conditions, 79 events. 26/79 cut-off events. For 47/47 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 293 event pairs, 5 based on Foata normal form. 1/69 useless extension candidates. Maximal degree in co-relation 204. Up to 42 conditions per place. [2021-04-28 21:00:23,584 INFO L132 encePairwiseOnDemand]: 276/283 looper letters, 12 selfloop transitions, 10 changer transitions 0/35 dead transitions. [2021-04-28 21:00:23,584 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 35 transitions, 174 flow [2021-04-28 21:00:23,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-04-28 21:00:23,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-04-28 21:00:23,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 852 transitions. [2021-04-28 21:00:23,597 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6021201413427562 [2021-04-28 21:00:23,597 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 852 transitions. [2021-04-28 21:00:23,597 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 852 transitions. [2021-04-28 21:00:23,598 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 21:00:23,598 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 852 transitions. [2021-04-28 21:00:23,601 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 170.4) internal successors, (852), 5 states have internal predecessors, (852), 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) [2021-04-28 21:00:23,610 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 283.0) internal successors, (1698), 6 states have internal predecessors, (1698), 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) [2021-04-28 21:00:23,612 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 283.0) internal successors, (1698), 6 states have internal predecessors, (1698), 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) [2021-04-28 21:00:23,613 INFO L185 Difference]: Start difference. First operand has 32 places, 27 transitions, 100 flow. Second operand 5 states and 852 transitions. [2021-04-28 21:00:23,613 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 35 transitions, 174 flow [2021-04-28 21:00:23,615 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 35 transitions, 174 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-04-28 21:00:23,617 INFO L241 Difference]: Finished difference. Result has 38 places, 32 transitions, 158 flow [2021-04-28 21:00:23,617 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=283, PETRI_DIFFERENCE_MINUEND_FLOW=100, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=158, PETRI_PLACES=38, PETRI_TRANSITIONS=32} [2021-04-28 21:00:23,618 INFO L343 CegarLoopForPetriNet]: 114 programPoint places, -76 predicate places. [2021-04-28 21:00:23,618 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 21:00:23,618 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 38 places, 32 transitions, 158 flow [2021-04-28 21:00:23,618 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 38 places, 32 transitions, 158 flow [2021-04-28 21:00:23,619 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 38 places, 32 transitions, 158 flow [2021-04-28 21:00:23,636 INFO L129 PetriNetUnfolder]: 19/80 cut-off events. [2021-04-28 21:00:23,636 INFO L130 PetriNetUnfolder]: For 70/71 co-relation queries the response was YES. [2021-04-28 21:00:23,637 INFO L84 FinitePrefix]: Finished finitePrefix Result has 209 conditions, 80 events. 19/80 cut-off events. For 70/71 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 319 event pairs, 3 based on Foata normal form. 1/60 useless extension candidates. Maximal degree in co-relation 195. Up to 24 conditions per place. [2021-04-28 21:00:23,638 INFO L146 LiptonReduction]: Number of co-enabled transitions 212 [2021-04-28 21:00:24,514 WARN L205 SmtUtils]: Spent 865.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 57 [2021-04-28 21:00:24,859 WARN L205 SmtUtils]: Spent 342.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2021-04-28 21:00:26,643 WARN L205 SmtUtils]: Spent 1.78 s on a formula simplification. DAG size of input: 106 DAG size of output: 87 [2021-04-28 21:00:27,394 WARN L205 SmtUtils]: Spent 749.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2021-04-28 21:00:27,401 INFO L158 LiptonReduction]: Checked pairs total: 281 [2021-04-28 21:00:27,402 INFO L160 LiptonReduction]: Total number of compositions: 1 [2021-04-28 21:00:27,402 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 3784 [2021-04-28 21:00:27,403 INFO L480 AbstractCegarLoop]: Abstraction has has 39 places, 33 transitions, 168 flow [2021-04-28 21:00:27,405 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 168.0) internal successors, (840), 5 states have internal predecessors, (840), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:00:27,405 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 21:00:27,405 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 21:00:27,405 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-04-28 21:00:27,405 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1INUSE_VIOLATION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 21:00:27,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 21:00:27,406 INFO L82 PathProgramCache]: Analyzing trace with hash -1356358728, now seen corresponding path program 2 times [2021-04-28 21:00:27,406 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 21:00:27,407 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1987550758] [2021-04-28 21:00:27,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 21:00:27,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 21:00:27,478 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 21:00:27,481 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 21:00:27,513 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 21:00:27,516 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-28 21:00:27,558 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 21:00:27,559 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 21:00:27,595 INFO L142 QuantifierPusher]: treesize reduction 4, result has 75.0 percent of original size [2021-04-28 21:00:27,597 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-04-28 21:00:27,635 INFO L142 QuantifierPusher]: treesize reduction 4, result has 75.0 percent of original size [2021-04-28 21:00:27,637 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-04-28 21:00:27,673 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 21:00:27,674 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1987550758] [2021-04-28 21:00:27,674 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 21:00:27,674 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-04-28 21:00:27,675 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1187082843] [2021-04-28 21:00:27,675 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-04-28 21:00:27,676 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 21:00:27,676 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-04-28 21:00:27,677 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-04-28 21:00:27,678 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 126 out of 284 [2021-04-28 21:00:27,680 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 33 transitions, 168 flow. Second operand has 7 states, 7 states have (on average 126.85714285714286) internal successors, (888), 7 states have internal predecessors, (888), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:00:27,680 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 21:00:27,680 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 126 of 284 [2021-04-28 21:00:27,680 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 21:00:28,332 INFO L129 PetriNetUnfolder]: 215/395 cut-off events. [2021-04-28 21:00:28,333 INFO L130 PetriNetUnfolder]: For 524/524 co-relation queries the response was YES. [2021-04-28 21:00:28,334 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1179 conditions, 395 events. 215/395 cut-off events. For 524/524 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 1728 event pairs, 23 based on Foata normal form. 5/293 useless extension candidates. Maximal degree in co-relation 1163. Up to 294 conditions per place. [2021-04-28 21:00:28,338 INFO L132 encePairwiseOnDemand]: 275/284 looper letters, 25 selfloop transitions, 18 changer transitions 1/50 dead transitions. [2021-04-28 21:00:28,338 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 50 transitions, 314 flow [2021-04-28 21:00:28,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-04-28 21:00:28,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-04-28 21:00:28,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 793 transitions. [2021-04-28 21:00:28,347 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4653755868544601 [2021-04-28 21:00:28,347 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 793 transitions. [2021-04-28 21:00:28,347 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 793 transitions. [2021-04-28 21:00:28,348 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 21:00:28,348 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 793 transitions. [2021-04-28 21:00:28,351 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 132.16666666666666) internal successors, (793), 6 states have internal predecessors, (793), 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) [2021-04-28 21:00:28,356 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 284.0) internal successors, (1988), 7 states have internal predecessors, (1988), 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) [2021-04-28 21:00:28,358 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 284.0) internal successors, (1988), 7 states have internal predecessors, (1988), 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) [2021-04-28 21:00:28,358 INFO L185 Difference]: Start difference. First operand has 39 places, 33 transitions, 168 flow. Second operand 6 states and 793 transitions. [2021-04-28 21:00:28,358 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 50 transitions, 314 flow [2021-04-28 21:00:28,362 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 50 transitions, 299 flow, removed 4 selfloop flow, removed 1 redundant places. [2021-04-28 21:00:28,364 INFO L241 Difference]: Finished difference. Result has 45 places, 39 transitions, 245 flow [2021-04-28 21:00:28,364 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=284, PETRI_DIFFERENCE_MINUEND_FLOW=154, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=245, PETRI_PLACES=45, PETRI_TRANSITIONS=39} [2021-04-28 21:00:28,365 INFO L343 CegarLoopForPetriNet]: 114 programPoint places, -69 predicate places. [2021-04-28 21:00:28,365 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 21:00:28,365 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 45 places, 39 transitions, 245 flow [2021-04-28 21:00:28,365 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 45 places, 39 transitions, 245 flow [2021-04-28 21:00:28,366 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 44 places, 39 transitions, 245 flow [2021-04-28 21:00:28,389 INFO L129 PetriNetUnfolder]: 22/122 cut-off events. [2021-04-28 21:00:28,390 INFO L130 PetriNetUnfolder]: For 184/185 co-relation queries the response was YES. [2021-04-28 21:00:28,391 INFO L84 FinitePrefix]: Finished finitePrefix Result has 359 conditions, 122 events. 22/122 cut-off events. For 184/185 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 651 event pairs, 2 based on Foata normal form. 1/88 useless extension candidates. Maximal degree in co-relation 342. Up to 33 conditions per place. [2021-04-28 21:00:28,393 INFO L146 LiptonReduction]: Number of co-enabled transitions 232 [2021-04-28 21:00:28,396 INFO L158 LiptonReduction]: Checked pairs total: 160 [2021-04-28 21:00:28,396 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 21:00:28,396 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 31 [2021-04-28 21:00:28,397 INFO L480 AbstractCegarLoop]: Abstraction has has 44 places, 39 transitions, 245 flow [2021-04-28 21:00:28,398 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 126.85714285714286) internal successors, (888), 7 states have internal predecessors, (888), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:00:28,398 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 21:00:28,398 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 21:00:28,398 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-04-28 21:00:28,399 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1INUSE_VIOLATION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 21:00:28,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 21:00:28,399 INFO L82 PathProgramCache]: Analyzing trace with hash 1554689126, now seen corresponding path program 1 times [2021-04-28 21:00:28,399 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 21:00:28,399 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1943352840] [2021-04-28 21:00:28,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 21:00:28,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 21:00:28,480 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 21:00:28,482 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 21:00:28,494 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 21:00:28,497 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 21:00:28,526 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 21:00:28,528 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-28 21:00:28,529 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 21:00:28,529 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1943352840] [2021-04-28 21:00:28,529 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 21:00:28,530 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-28 21:00:28,530 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2025000970] [2021-04-28 21:00:28,530 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-28 21:00:28,530 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 21:00:28,531 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-28 21:00:28,531 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-04-28 21:00:28,533 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 192 out of 284 [2021-04-28 21:00:28,534 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 39 transitions, 245 flow. Second operand has 4 states, 4 states have (on average 192.75) internal successors, (771), 4 states have internal predecessors, (771), 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) [2021-04-28 21:00:28,535 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 21:00:28,535 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 192 of 284 [2021-04-28 21:00:28,535 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 21:00:28,765 INFO L129 PetriNetUnfolder]: 71/223 cut-off events. [2021-04-28 21:00:28,765 INFO L130 PetriNetUnfolder]: For 368/374 co-relation queries the response was YES. [2021-04-28 21:00:28,766 INFO L84 FinitePrefix]: Finished finitePrefix Result has 703 conditions, 223 events. 71/223 cut-off events. For 368/374 co-relation queries the response was YES. Maximal size of possible extension queue 60. Compared 1320 event pairs, 18 based on Foata normal form. 35/177 useless extension candidates. Maximal degree in co-relation 684. Up to 121 conditions per place. [2021-04-28 21:00:28,768 INFO L132 encePairwiseOnDemand]: 275/284 looper letters, 8 selfloop transitions, 17 changer transitions 9/57 dead transitions. [2021-04-28 21:00:28,768 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 57 transitions, 350 flow [2021-04-28 21:00:28,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-04-28 21:00:28,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-04-28 21:00:28,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 990 transitions. [2021-04-28 21:00:28,780 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6971830985915493 [2021-04-28 21:00:28,780 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 990 transitions. [2021-04-28 21:00:28,780 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 990 transitions. [2021-04-28 21:00:28,781 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 21:00:28,781 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 990 transitions. [2021-04-28 21:00:28,784 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 198.0) internal successors, (990), 5 states have internal predecessors, (990), 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) [2021-04-28 21:00:28,788 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 284.0) internal successors, (1704), 6 states have internal predecessors, (1704), 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) [2021-04-28 21:00:28,789 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 284.0) internal successors, (1704), 6 states have internal predecessors, (1704), 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) [2021-04-28 21:00:28,789 INFO L185 Difference]: Start difference. First operand has 44 places, 39 transitions, 245 flow. Second operand 5 states and 990 transitions. [2021-04-28 21:00:28,789 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 57 transitions, 350 flow [2021-04-28 21:00:28,792 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 57 transitions, 321 flow, removed 6 selfloop flow, removed 4 redundant places. [2021-04-28 21:00:28,794 INFO L241 Difference]: Finished difference. Result has 47 places, 48 transitions, 296 flow [2021-04-28 21:00:28,795 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=284, PETRI_DIFFERENCE_MINUEND_FLOW=182, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=296, PETRI_PLACES=47, PETRI_TRANSITIONS=48} [2021-04-28 21:00:28,795 INFO L343 CegarLoopForPetriNet]: 114 programPoint places, -67 predicate places. [2021-04-28 21:00:28,795 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 21:00:28,795 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 47 places, 48 transitions, 296 flow [2021-04-28 21:00:28,796 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 47 places, 48 transitions, 296 flow [2021-04-28 21:00:28,796 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 47 places, 48 transitions, 296 flow [2021-04-28 21:00:28,824 INFO L129 PetriNetUnfolder]: 23/136 cut-off events. [2021-04-28 21:00:28,824 INFO L130 PetriNetUnfolder]: For 146/150 co-relation queries the response was YES. [2021-04-28 21:00:28,825 INFO L84 FinitePrefix]: Finished finitePrefix Result has 441 conditions, 136 events. 23/136 cut-off events. For 146/150 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 838 event pairs, 0 based on Foata normal form. 4/105 useless extension candidates. Maximal degree in co-relation 422. Up to 37 conditions per place. [2021-04-28 21:00:28,827 INFO L146 LiptonReduction]: Number of co-enabled transitions 242 [2021-04-28 21:00:28,874 INFO L158 LiptonReduction]: Checked pairs total: 135 [2021-04-28 21:00:28,875 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 21:00:28,875 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 80 [2021-04-28 21:00:28,876 INFO L480 AbstractCegarLoop]: Abstraction has has 47 places, 48 transitions, 296 flow [2021-04-28 21:00:28,877 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 192.75) internal successors, (771), 4 states have internal predecessors, (771), 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) [2021-04-28 21:00:28,877 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 21:00:28,877 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 21:00:28,877 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-04-28 21:00:28,877 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1INUSE_VIOLATION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 21:00:28,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 21:00:28,878 INFO L82 PathProgramCache]: Analyzing trace with hash -1572609818, now seen corresponding path program 1 times [2021-04-28 21:00:28,878 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 21:00:28,878 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [566414290] [2021-04-28 21:00:28,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 21:00:28,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 21:00:28,958 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 21:00:28,960 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 21:00:28,972 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 21:00:28,974 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 21:00:28,989 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 21:00:28,995 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 21:00:29,026 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 21:00:29,028 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-28 21:00:29,029 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 21:00:29,029 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [566414290] [2021-04-28 21:00:29,029 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 21:00:29,029 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-04-28 21:00:29,029 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1937524747] [2021-04-28 21:00:29,030 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-04-28 21:00:29,030 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 21:00:29,031 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-04-28 21:00:29,031 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-04-28 21:00:29,033 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 192 out of 284 [2021-04-28 21:00:29,034 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 48 transitions, 296 flow. Second operand has 5 states, 5 states have (on average 192.8) internal successors, (964), 5 states have internal predecessors, (964), 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) [2021-04-28 21:00:29,034 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 21:00:29,035 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 192 of 284 [2021-04-28 21:00:29,035 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 21:00:29,362 INFO L129 PetriNetUnfolder]: 26/142 cut-off events. [2021-04-28 21:00:29,362 INFO L130 PetriNetUnfolder]: For 254/301 co-relation queries the response was YES. [2021-04-28 21:00:29,363 INFO L84 FinitePrefix]: Finished finitePrefix Result has 536 conditions, 142 events. 26/142 cut-off events. For 254/301 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 821 event pairs, 0 based on Foata normal form. 47/140 useless extension candidates. Maximal degree in co-relation 515. Up to 55 conditions per place. [2021-04-28 21:00:29,364 INFO L132 encePairwiseOnDemand]: 275/284 looper letters, 2 selfloop transitions, 24 changer transitions 7/55 dead transitions. [2021-04-28 21:00:29,364 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 55 transitions, 394 flow [2021-04-28 21:00:29,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-04-28 21:00:29,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-04-28 21:00:29,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1375 transitions. [2021-04-28 21:00:29,375 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6916498993963782 [2021-04-28 21:00:29,375 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1375 transitions. [2021-04-28 21:00:29,375 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1375 transitions. [2021-04-28 21:00:29,377 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 21:00:29,378 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1375 transitions. [2021-04-28 21:00:29,381 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 196.42857142857142) internal successors, (1375), 7 states have internal predecessors, (1375), 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) [2021-04-28 21:00:29,387 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 284.0) internal successors, (2272), 8 states have internal predecessors, (2272), 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) [2021-04-28 21:00:29,388 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 284.0) internal successors, (2272), 8 states have internal predecessors, (2272), 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) [2021-04-28 21:00:29,388 INFO L185 Difference]: Start difference. First operand has 47 places, 48 transitions, 296 flow. Second operand 7 states and 1375 transitions. [2021-04-28 21:00:29,389 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 55 transitions, 394 flow [2021-04-28 21:00:29,391 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 55 transitions, 369 flow, removed 10 selfloop flow, removed 1 redundant places. [2021-04-28 21:00:29,393 INFO L241 Difference]: Finished difference. Result has 55 places, 48 transitions, 356 flow [2021-04-28 21:00:29,393 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=284, PETRI_DIFFERENCE_MINUEND_FLOW=277, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=356, PETRI_PLACES=55, PETRI_TRANSITIONS=48} [2021-04-28 21:00:29,394 INFO L343 CegarLoopForPetriNet]: 114 programPoint places, -59 predicate places. [2021-04-28 21:00:29,394 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 21:00:29,394 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 55 places, 48 transitions, 356 flow [2021-04-28 21:00:29,394 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 55 places, 48 transitions, 356 flow [2021-04-28 21:00:29,395 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 53 places, 48 transitions, 356 flow [2021-04-28 21:00:29,417 INFO L129 PetriNetUnfolder]: 17/125 cut-off events. [2021-04-28 21:00:29,417 INFO L130 PetriNetUnfolder]: For 224/227 co-relation queries the response was YES. [2021-04-28 21:00:29,418 INFO L84 FinitePrefix]: Finished finitePrefix Result has 478 conditions, 125 events. 17/125 cut-off events. For 224/227 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 725 event pairs, 0 based on Foata normal form. 2/93 useless extension candidates. Maximal degree in co-relation 455. Up to 45 conditions per place. [2021-04-28 21:00:29,419 INFO L146 LiptonReduction]: Number of co-enabled transitions 156 [2021-04-28 21:00:29,424 INFO L158 LiptonReduction]: Checked pairs total: 124 [2021-04-28 21:00:29,425 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 21:00:29,425 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 31 [2021-04-28 21:00:29,426 INFO L480 AbstractCegarLoop]: Abstraction has has 53 places, 48 transitions, 356 flow [2021-04-28 21:00:29,427 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 192.8) internal successors, (964), 5 states have internal predecessors, (964), 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) [2021-04-28 21:00:29,427 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 21:00:29,427 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 21:00:29,427 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-04-28 21:00:29,427 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1INUSE_VIOLATION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 21:00:29,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 21:00:29,428 INFO L82 PathProgramCache]: Analyzing trace with hash -12512083, now seen corresponding path program 1 times [2021-04-28 21:00:29,428 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 21:00:29,428 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1517906195] [2021-04-28 21:00:29,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 21:00:29,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 21:00:29,495 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 21:00:29,498 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-28 21:00:29,499 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 21:00:29,502 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 21:00:29,515 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 21:00:29,517 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 21:00:29,532 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 21:00:29,533 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1517906195] [2021-04-28 21:00:29,533 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 21:00:29,533 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-28 21:00:29,533 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [246271697] [2021-04-28 21:00:29,534 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-28 21:00:29,534 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 21:00:29,534 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-28 21:00:29,534 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-04-28 21:00:29,536 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 181 out of 284 [2021-04-28 21:00:29,538 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 48 transitions, 356 flow. Second operand has 4 states, 4 states have (on average 182.0) internal successors, (728), 4 states have internal predecessors, (728), 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) [2021-04-28 21:00:29,538 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 21:00:29,538 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 181 of 284 [2021-04-28 21:00:29,538 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 21:00:29,659 INFO L129 PetriNetUnfolder]: 28/204 cut-off events. [2021-04-28 21:00:29,660 INFO L130 PetriNetUnfolder]: For 387/401 co-relation queries the response was YES. [2021-04-28 21:00:29,661 INFO L84 FinitePrefix]: Finished finitePrefix Result has 825 conditions, 204 events. 28/204 cut-off events. For 387/401 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 1430 event pairs, 0 based on Foata normal form. 11/149 useless extension candidates. Maximal degree in co-relation 800. Up to 85 conditions per place. [2021-04-28 21:00:29,662 INFO L132 encePairwiseOnDemand]: 281/284 looper letters, 3 selfloop transitions, 1 changer transitions 12/49 dead transitions. [2021-04-28 21:00:29,662 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 49 transitions, 368 flow [2021-04-28 21:00:29,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-04-28 21:00:29,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-04-28 21:00:29,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 730 transitions. [2021-04-28 21:00:29,672 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6426056338028169 [2021-04-28 21:00:29,672 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 730 transitions. [2021-04-28 21:00:29,672 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 730 transitions. [2021-04-28 21:00:29,673 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 21:00:29,673 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 730 transitions. [2021-04-28 21:00:29,676 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 182.5) internal successors, (730), 4 states have internal predecessors, (730), 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) [2021-04-28 21:00:29,680 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 284.0) internal successors, (1420), 5 states have internal predecessors, (1420), 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) [2021-04-28 21:00:29,680 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 284.0) internal successors, (1420), 5 states have internal predecessors, (1420), 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) [2021-04-28 21:00:29,680 INFO L185 Difference]: Start difference. First operand has 53 places, 48 transitions, 356 flow. Second operand 4 states and 730 transitions. [2021-04-28 21:00:29,681 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 49 transitions, 368 flow [2021-04-28 21:00:29,689 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 49 transitions, 309 flow, removed 9 selfloop flow, removed 6 redundant places. [2021-04-28 21:00:29,693 INFO L241 Difference]: Finished difference. Result has 52 places, 37 transitions, 220 flow [2021-04-28 21:00:29,693 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=284, PETRI_DIFFERENCE_MINUEND_FLOW=297, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=220, PETRI_PLACES=52, PETRI_TRANSITIONS=37} [2021-04-28 21:00:29,693 INFO L343 CegarLoopForPetriNet]: 114 programPoint places, -62 predicate places. [2021-04-28 21:00:29,694 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 21:00:29,694 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 52 places, 37 transitions, 220 flow [2021-04-28 21:00:29,694 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 52 places, 37 transitions, 220 flow [2021-04-28 21:00:29,695 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 47 places, 37 transitions, 220 flow [2021-04-28 21:00:29,719 INFO L129 PetriNetUnfolder]: 11/99 cut-off events. [2021-04-28 21:00:29,719 INFO L130 PetriNetUnfolder]: For 75/75 co-relation queries the response was YES. [2021-04-28 21:00:29,720 INFO L84 FinitePrefix]: Finished finitePrefix Result has 313 conditions, 99 events. 11/99 cut-off events. For 75/75 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 513 event pairs, 0 based on Foata normal form. 0/71 useless extension candidates. Maximal degree in co-relation 293. Up to 40 conditions per place. [2021-04-28 21:00:29,721 INFO L146 LiptonReduction]: Number of co-enabled transitions 84 [2021-04-28 21:00:29,970 INFO L158 LiptonReduction]: Checked pairs total: 36 [2021-04-28 21:00:29,970 INFO L160 LiptonReduction]: Total number of compositions: 2 [2021-04-28 21:00:29,970 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 276 [2021-04-28 21:00:29,972 INFO L480 AbstractCegarLoop]: Abstraction has has 47 places, 37 transitions, 226 flow [2021-04-28 21:00:29,973 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 182.0) internal successors, (728), 4 states have internal predecessors, (728), 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) [2021-04-28 21:00:29,973 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 21:00:29,973 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 21:00:29,973 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-04-28 21:00:29,973 INFO L428 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1INUSE_VIOLATION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 21:00:29,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 21:00:29,974 INFO L82 PathProgramCache]: Analyzing trace with hash -205120099, now seen corresponding path program 1 times [2021-04-28 21:00:29,974 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 21:00:29,974 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1978147222] [2021-04-28 21:00:29,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 21:00:30,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-04-28 21:00:30,032 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-04-28 21:00:30,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-04-28 21:00:30,090 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-04-28 21:00:30,136 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-04-28 21:00:30,136 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-04-28 21:00:30,136 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-04-28 21:00:30,223 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.04 09:00:30 BasicIcfg [2021-04-28 21:00:30,223 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-04-28 21:00:30,224 INFO L168 Benchmark]: Toolchain (without parser) took 197094.98 ms. Allocated memory was 314.6 MB in the beginning and 513.8 MB in the end (delta: 199.2 MB). Free memory was 288.2 MB in the beginning and 409.7 MB in the end (delta: -121.4 MB). Peak memory consumption was 80.3 MB. Max. memory is 16.0 GB. [2021-04-28 21:00:30,225 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 314.6 MB. Free memory was 282.9 MB in the beginning and 282.8 MB in the end (delta: 66.5 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-04-28 21:00:30,225 INFO L168 Benchmark]: CACSL2BoogieTranslator took 815.03 ms. Allocated memory is still 314.6 MB. Free memory was 285.0 MB in the beginning and 281.1 MB in the end (delta: 3.8 MB). Peak memory consumption was 27.4 MB. Max. memory is 16.0 GB. [2021-04-28 21:00:30,225 INFO L168 Benchmark]: Boogie Procedure Inliner took 69.66 ms. Allocated memory is still 314.6 MB. Free memory was 281.1 MB in the beginning and 278.0 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-04-28 21:00:30,226 INFO L168 Benchmark]: Boogie Preprocessor took 41.64 ms. Allocated memory is still 314.6 MB. Free memory was 278.0 MB in the beginning and 275.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-04-28 21:00:30,226 INFO L168 Benchmark]: RCFGBuilder took 2946.12 ms. Allocated memory was 314.6 MB in the beginning and 396.4 MB in the end (delta: 81.8 MB). Free memory was 275.9 MB in the beginning and 315.2 MB in the end (delta: -39.3 MB). Peak memory consumption was 148.9 MB. Max. memory is 16.0 GB. [2021-04-28 21:00:30,227 INFO L168 Benchmark]: TraceAbstraction took 193170.06 ms. Allocated memory was 396.4 MB in the beginning and 513.8 MB in the end (delta: 117.4 MB). Free memory was 315.2 MB in the beginning and 409.7 MB in the end (delta: -94.4 MB). Peak memory consumption was 23.0 MB. Max. memory is 16.0 GB. [2021-04-28 21:00:30,229 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 314.6 MB. Free memory was 282.9 MB in the beginning and 282.8 MB in the end (delta: 66.5 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 815.03 ms. Allocated memory is still 314.6 MB. Free memory was 285.0 MB in the beginning and 281.1 MB in the end (delta: 3.8 MB). Peak memory consumption was 27.4 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 69.66 ms. Allocated memory is still 314.6 MB. Free memory was 281.1 MB in the beginning and 278.0 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 41.64 ms. Allocated memory is still 314.6 MB. Free memory was 278.0 MB in the beginning and 275.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 2946.12 ms. Allocated memory was 314.6 MB in the beginning and 396.4 MB in the end (delta: 81.8 MB). Free memory was 275.9 MB in the beginning and 315.2 MB in the end (delta: -39.3 MB). Peak memory consumption was 148.9 MB. Max. memory is 16.0 GB. * TraceAbstraction took 193170.06 ms. Allocated memory was 396.4 MB in the beginning and 513.8 MB in the end (delta: 117.4 MB). Free memory was 315.2 MB in the beginning and 409.7 MB in the end (delta: -94.4 MB). Peak memory consumption was 23.0 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 181349.2ms, 87 PlacesBefore, 114 PlacesAfterwards, 82 TransitionsBefore, 109 TransitionsAfterwards, 1046 CoEnabledTransitionPairs, 8 FixpointIterations, 124 TrivialSequentialCompositions, 73 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 1 ConcurrentYvCompositions, 0 ChoiceCompositions, 198 TotalNumberOfCompositions, 9587 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2643, positive: 2447, positive conditional: 2447, positive unconditional: 0, negative: 196, negative conditional: 196, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1241, positive: 1193, positive conditional: 0, positive unconditional: 1193, negative: 48, negative conditional: 0, negative unconditional: 48, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1241, positive: 1193, positive conditional: 0, positive unconditional: 1193, negative: 48, negative conditional: 0, negative unconditional: 48, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1241, positive: 1178, positive conditional: 0, positive unconditional: 1178, negative: 63, negative conditional: 0, negative unconditional: 63, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 63, positive: 15, positive conditional: 0, positive unconditional: 15, negative: 48, negative conditional: 0, negative unconditional: 48, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 1971, positive: 166, positive conditional: 0, positive unconditional: 166, negative: 1805, negative conditional: 0, negative unconditional: 1805, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 2643, positive: 1254, positive conditional: 1254, positive unconditional: 0, negative: 148, negative conditional: 148, negative unconditional: 0, unknown: 1241, unknown conditional: 1241, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1241, Positive cache size: 1193, Positive conditional cache size: 1193, Positive unconditional cache size: 0, Negative cache size: 48, Negative conditional cache size: 48, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 620.3ms, 111 PlacesBefore, 40 PlacesAfterwards, 33 TransitionsBefore, 33 TransitionsAfterwards, 576 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 498 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 125, positive: 101, positive conditional: 101, positive unconditional: 0, negative: 24, negative conditional: 24, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 69, positive: 55, positive conditional: 7, positive unconditional: 48, negative: 14, negative conditional: 5, negative unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 69, positive: 55, positive conditional: 7, positive unconditional: 48, negative: 14, negative conditional: 5, negative unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 69, positive: 53, positive conditional: 0, positive unconditional: 53, negative: 16, negative conditional: 0, negative unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 16, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 14, negative conditional: 5, negative unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 597, positive: 16, positive conditional: 0, positive unconditional: 16, negative: 580, negative conditional: 301, negative unconditional: 279, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 125, positive: 46, positive conditional: 46, positive unconditional: 0, negative: 10, negative conditional: 10, negative unconditional: 0, unknown: 69, unknown conditional: 69, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1310, Positive cache size: 1248, Positive conditional cache size: 1248, Positive unconditional cache size: 0, Negative cache size: 62, Negative conditional cache size: 62, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1277.7ms, 41 PlacesBefore, 29 PlacesAfterwards, 21 TransitionsBefore, 21 TransitionsAfterwards, 206 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 502 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 184, positive: 141, positive conditional: 141, positive unconditional: 0, negative: 43, negative conditional: 43, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 64, positive: 47, positive conditional: 13, positive unconditional: 34, negative: 17, negative conditional: 2, negative unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 64, positive: 47, positive conditional: 13, positive unconditional: 34, negative: 17, negative conditional: 2, negative unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 64, positive: 42, positive conditional: 0, positive unconditional: 42, negative: 22, negative conditional: 0, negative unconditional: 22, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 22, positive: 5, positive conditional: 0, positive unconditional: 5, negative: 17, negative conditional: 2, negative unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 814, positive: 36, positive conditional: 0, positive unconditional: 36, negative: 778, negative conditional: 58, negative unconditional: 720, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 184, positive: 94, positive conditional: 94, positive unconditional: 0, negative: 26, negative conditional: 26, negative unconditional: 0, unknown: 64, unknown conditional: 64, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1374, Positive cache size: 1295, Positive conditional cache size: 1295, Positive unconditional cache size: 0, Negative cache size: 79, Negative conditional cache size: 79, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 226.1ms, 33 PlacesBefore, 32 PlacesAfterwards, 27 TransitionsBefore, 27 TransitionsAfterwards, 210 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 126 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 54, positive: 45, positive conditional: 45, positive unconditional: 0, negative: 9, negative conditional: 9, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 6, positive: 3, positive conditional: 2, positive unconditional: 1, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 6, positive: 3, positive conditional: 2, positive unconditional: 1, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 6, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 3, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 212, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 212, negative conditional: 0, negative unconditional: 212, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 54, positive: 42, positive conditional: 42, positive unconditional: 0, negative: 6, negative conditional: 6, negative unconditional: 0, unknown: 6, unknown conditional: 6, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1380, Positive cache size: 1298, Positive conditional cache size: 1298, Positive unconditional cache size: 0, Negative cache size: 82, Negative conditional cache size: 82, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3783.5ms, 38 PlacesBefore, 39 PlacesAfterwards, 32 TransitionsBefore, 33 TransitionsAfterwards, 212 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 281 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 149, positive: 129, positive conditional: 129, positive unconditional: 0, negative: 20, negative conditional: 20, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 10, positive: 9, positive conditional: 7, 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: 10, positive: 9, positive conditional: 7, 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: 10, positive: 9, positive conditional: 0, positive unconditional: 9, 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: 7, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 7, negative conditional: 0, negative unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 149, positive: 120, positive conditional: 120, positive unconditional: 0, negative: 19, negative conditional: 19, negative unconditional: 0, unknown: 10, unknown conditional: 10, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1390, Positive cache size: 1307, Positive conditional cache size: 1307, Positive unconditional cache size: 0, Negative cache size: 83, Negative conditional cache size: 83, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 30.9ms, 45 PlacesBefore, 44 PlacesAfterwards, 39 TransitionsBefore, 39 TransitionsAfterwards, 232 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 160 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 62, positive: 51, positive conditional: 51, positive unconditional: 0, negative: 11, negative conditional: 11, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 4, positive: 4, positive conditional: 2, 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: 4, positive: 4, positive conditional: 2, 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: 4, positive: 4, positive conditional: 0, positive unconditional: 4, 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: 62, positive: 47, positive conditional: 47, positive unconditional: 0, negative: 11, negative conditional: 11, negative unconditional: 0, unknown: 4, unknown conditional: 4, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1394, Positive cache size: 1311, Positive conditional cache size: 1311, Positive unconditional cache size: 0, Negative cache size: 83, Negative conditional cache size: 83, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 79.2ms, 47 PlacesBefore, 47 PlacesAfterwards, 48 TransitionsBefore, 48 TransitionsAfterwards, 242 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 135 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 57, positive: 48, positive conditional: 48, positive unconditional: 0, negative: 9, negative conditional: 9, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 8, positive: 7, positive conditional: 7, positive unconditional: 0, 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: 8, positive: 7, positive conditional: 7, positive unconditional: 0, 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: 8, positive: 7, positive conditional: 0, positive unconditional: 7, 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: 43, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 43, negative conditional: 0, negative unconditional: 43, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 57, positive: 41, positive conditional: 41, positive unconditional: 0, negative: 8, negative conditional: 8, negative unconditional: 0, unknown: 8, unknown conditional: 8, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1402, Positive cache size: 1318, Positive conditional cache size: 1318, Positive unconditional cache size: 0, Negative cache size: 84, Negative conditional cache size: 84, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 30.5ms, 55 PlacesBefore, 53 PlacesAfterwards, 48 TransitionsBefore, 48 TransitionsAfterwards, 156 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 124 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 90, positive: 80, positive conditional: 80, positive unconditional: 0, negative: 10, negative conditional: 10, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 21, positive: 21, positive conditional: 21, 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: 21, positive: 21, positive conditional: 21, 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: 21, positive: 21, positive conditional: 0, positive unconditional: 21, 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: 90, positive: 59, positive conditional: 59, positive unconditional: 0, negative: 10, negative conditional: 10, negative unconditional: 0, unknown: 21, unknown conditional: 21, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1423, Positive cache size: 1339, Positive conditional cache size: 1339, Positive unconditional cache size: 0, Negative cache size: 84, Negative conditional cache size: 84, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 275.6ms, 52 PlacesBefore, 47 PlacesAfterwards, 37 TransitionsBefore, 37 TransitionsAfterwards, 84 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 2 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 2 TotalNumberOfCompositions, 36 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 28, positive: 27, positive conditional: 27, 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: 16, positive: 15, positive conditional: 13, positive unconditional: 2, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 16, positive: 15, positive conditional: 13, positive unconditional: 2, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 16, positive: 15, positive conditional: 0, positive unconditional: 15, 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: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 35, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 35, negative conditional: 35, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 28, positive: 12, positive conditional: 12, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 16, unknown conditional: 16, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1439, Positive cache size: 1354, Positive conditional cache size: 1354, Positive unconditional cache size: 0, Negative cache size: 85, Negative conditional cache size: 85, Negative unconditional cache size: 0 - CounterExampleResult [Line: 18]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L708] 0 int __unbuffered_cnt = 0; [L710] 0 int __unbuffered_p1_EAX = 0; [L712] 0 int __unbuffered_p1_EBX = 0; [L713] 0 _Bool main$tmp_guard0; [L714] 0 _Bool main$tmp_guard1; [L716] 0 int x = 0; [L717] 0 _Bool x$flush_delayed; [L718] 0 int x$mem_tmp; [L719] 0 _Bool x$r_buff0_thd0; [L720] 0 _Bool x$r_buff0_thd1; [L721] 0 _Bool x$r_buff0_thd2; [L722] 0 _Bool x$r_buff1_thd0; [L723] 0 _Bool x$r_buff1_thd1; [L724] 0 _Bool x$r_buff1_thd2; [L725] 0 _Bool x$read_delayed; [L726] 0 int *x$read_delayed_var; [L727] 0 int x$w_buff0; [L728] 0 _Bool x$w_buff0_used; [L729] 0 int x$w_buff1; [L730] 0 _Bool x$w_buff1_used; [L732] 0 int y = 0; [L734] 0 int z = 0; [L735] 0 _Bool weak$$choice0; [L736] 0 _Bool weak$$choice2; [L802] 0 pthread_t t1095; [L803] FCALL, FORK 0 pthread_create(&t1095, ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=0, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=0, z=0] [L804] 0 pthread_t t1096; [L805] FCALL, FORK 0 pthread_create(&t1096, ((void *)0), P1, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=0, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=0, z=0] [L760] 2 x$w_buff1 = x$w_buff0 [L761] 2 x$w_buff0 = 2 [L762] 2 x$w_buff1_used = x$w_buff0_used [L763] 2 x$w_buff0_used = (_Bool)1 [L18] COND FALSE 2 !(!expression) [L765] 2 x$r_buff1_thd0 = x$r_buff0_thd0 [L766] 2 x$r_buff1_thd1 = x$r_buff0_thd1 [L767] 2 x$r_buff1_thd2 = x$r_buff0_thd2 [L768] 2 x$r_buff0_thd2 = (_Bool)1 [L771] 2 y = 1 [L774] 2 __unbuffered_p1_EAX = y VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=1, z=0] [L777] 2 __unbuffered_p1_EBX = z VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=1, z=0] [L740] 1 z = 1 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=1, z=1] [L743] 1 x = 1 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=1, z=1] [L780] EXPR 2 x$w_buff0_used && x$r_buff0_thd2 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd2 ? x$w_buff1 : x) [L780] 2 x = x$w_buff0_used && x$r_buff0_thd2 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd2 ? x$w_buff1 : x) [L781] EXPR 2 x$w_buff0_used && x$r_buff0_thd2 ? (_Bool)0 : x$w_buff0_used [L781] 2 x$w_buff0_used = x$w_buff0_used && x$r_buff0_thd2 ? (_Bool)0 : x$w_buff0_used [L782] EXPR 2 x$w_buff0_used && x$r_buff0_thd2 || x$w_buff1_used && x$r_buff1_thd2 ? (_Bool)0 : x$w_buff1_used [L782] 2 x$w_buff1_used = x$w_buff0_used && x$r_buff0_thd2 || x$w_buff1_used && x$r_buff1_thd2 ? (_Bool)0 : x$w_buff1_used [L783] EXPR 2 x$w_buff0_used && x$r_buff0_thd2 ? (_Bool)0 : x$r_buff0_thd2 [L783] 2 x$r_buff0_thd2 = x$w_buff0_used && x$r_buff0_thd2 ? (_Bool)0 : x$r_buff0_thd2 [L784] EXPR 2 x$w_buff0_used && x$r_buff0_thd2 || x$w_buff1_used && x$r_buff1_thd2 ? (_Bool)0 : x$r_buff1_thd2 [L784] 2 x$r_buff1_thd2 = x$w_buff0_used && x$r_buff0_thd2 || x$w_buff1_used && x$r_buff1_thd2 ? (_Bool)0 : x$r_buff1_thd2 [L746] EXPR 1 x$w_buff0_used && x$r_buff0_thd1 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd1 ? x$w_buff1 : x) [L746] EXPR 1 x$w_buff1_used && x$r_buff1_thd1 ? x$w_buff1 : x [L746] EXPR 1 x$w_buff0_used && x$r_buff0_thd1 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd1 ? x$w_buff1 : x) [L746] 1 x = x$w_buff0_used && x$r_buff0_thd1 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd1 ? x$w_buff1 : x) [L747] EXPR 1 x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : x$w_buff0_used [L747] 1 x$w_buff0_used = x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : x$w_buff0_used [L748] EXPR 1 x$w_buff0_used && x$r_buff0_thd1 || x$w_buff1_used && x$r_buff1_thd1 ? (_Bool)0 : x$w_buff1_used [L748] 1 x$w_buff1_used = x$w_buff0_used && x$r_buff0_thd1 || x$w_buff1_used && x$r_buff1_thd1 ? (_Bool)0 : x$w_buff1_used [L749] EXPR 1 x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : x$r_buff0_thd1 [L749] 1 x$r_buff0_thd1 = x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : x$r_buff0_thd1 [L750] EXPR 1 x$w_buff0_used && x$r_buff0_thd1 || x$w_buff1_used && x$r_buff1_thd1 ? (_Bool)0 : x$r_buff1_thd1 [L750] 1 x$r_buff1_thd1 = x$w_buff0_used && x$r_buff0_thd1 || x$w_buff1_used && x$r_buff1_thd1 ? (_Bool)0 : x$r_buff1_thd1 [L753] 1 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [__unbuffered_cnt=1, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=1, z=1] [L787] 2 __unbuffered_cnt = __unbuffered_cnt + 1 [L789] 2 return 0; [L807] 0 main$tmp_guard0 = __unbuffered_cnt == 2 [L3] COND FALSE 0 !(!cond) [L811] EXPR 0 x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd0 ? x$w_buff1 : x) [L811] EXPR 0 x$w_buff1_used && x$r_buff1_thd0 ? x$w_buff1 : x [L811] EXPR 0 x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd0 ? x$w_buff1 : x) [L811] 0 x = x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd0 ? x$w_buff1 : x) [L812] EXPR 0 x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$w_buff0_used [L812] 0 x$w_buff0_used = x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$w_buff0_used [L813] EXPR 0 x$w_buff0_used && x$r_buff0_thd0 || x$w_buff1_used && x$r_buff1_thd0 ? (_Bool)0 : x$w_buff1_used [L813] 0 x$w_buff1_used = x$w_buff0_used && x$r_buff0_thd0 || x$w_buff1_used && x$r_buff1_thd0 ? (_Bool)0 : x$w_buff1_used [L814] EXPR 0 x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$r_buff0_thd0 [L814] 0 x$r_buff0_thd0 = x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$r_buff0_thd0 [L815] EXPR 0 x$w_buff0_used && x$r_buff0_thd0 || x$w_buff1_used && x$r_buff1_thd0 ? (_Bool)0 : x$r_buff1_thd0 [L815] 0 x$r_buff1_thd0 = x$w_buff0_used && x$r_buff0_thd0 || x$w_buff1_used && x$r_buff1_thd0 ? (_Bool)0 : x$r_buff1_thd0 [L818] 0 weak$$choice0 = __VERIFIER_nondet_bool() [L819] 0 weak$$choice2 = __VERIFIER_nondet_bool() [L820] 0 x$flush_delayed = weak$$choice2 [L821] 0 x$mem_tmp = x [L822] EXPR 0 !x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x : (x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff0 : x$w_buff1) [L822] 0 x = !x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x : (x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff0 : x$w_buff1) [L823] EXPR 0 weak$$choice2 ? x$w_buff0 : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$w_buff0 : (x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff0 : x$w_buff0)) [L823] 0 x$w_buff0 = weak$$choice2 ? x$w_buff0 : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$w_buff0 : (x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff0 : x$w_buff0)) [L824] EXPR 0 weak$$choice2 ? x$w_buff1 : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$w_buff1 : (x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff1 : x$w_buff1)) [L824] 0 x$w_buff1 = weak$$choice2 ? x$w_buff1 : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$w_buff1 : (x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff1 : x$w_buff1)) [L825] EXPR 0 weak$$choice2 ? x$w_buff0_used : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$w_buff0_used : (x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$w_buff0_used)) [L825] 0 x$w_buff0_used = weak$$choice2 ? x$w_buff0_used : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$w_buff0_used : (x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$w_buff0_used)) [L826] EXPR 0 weak$$choice2 ? x$w_buff1_used : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$w_buff1_used : (x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L826] 0 x$w_buff1_used = weak$$choice2 ? x$w_buff1_used : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$w_buff1_used : (x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L827] EXPR 0 weak$$choice2 ? x$r_buff0_thd0 : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$r_buff0_thd0 : (x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$r_buff0_thd0)) [L827] 0 x$r_buff0_thd0 = weak$$choice2 ? x$r_buff0_thd0 : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$r_buff0_thd0 : (x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$r_buff0_thd0)) [L828] EXPR 0 weak$$choice2 ? x$r_buff1_thd0 : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$r_buff1_thd0 : (x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L828] 0 x$r_buff1_thd0 = weak$$choice2 ? x$r_buff1_thd0 : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$r_buff1_thd0 : (x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L829] 0 main$tmp_guard1 = !(x == 2 && __unbuffered_p1_EAX == 1 && __unbuffered_p1_EBX == 0) [L830] EXPR 0 x$flush_delayed ? x$mem_tmp : x [L830] 0 x = x$flush_delayed ? x$mem_tmp : x [L831] 0 x$flush_delayed = (_Bool)0 [L18] COND TRUE 0 !expression [L18] 0 reach_error() VAL [__unbuffered_cnt=2, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=2, weak$$choice2=1, x=2, x$flush_delayed=0, x$mem_tmp=2, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=1, z=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 83 locations, 2 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 16.5ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: UNSAFE, OverallTime: 192947.3ms, OverallIterations: 9, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 3058.4ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 181468.2ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 40 SDtfs, 22 SDslu, 25 SDs, 0 SdLazy, 238 SolverSat, 85 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 916.9ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 32 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 860.0ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=356occurred in iteration=7, InterpolantAutomatonStates: 38, 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: 43.3ms SsaConstructionTime, 430.8ms SatisfiabilityAnalysisTime, 1204.4ms InterpolantComputationTime, 91 NumberOfCodeBlocks, 91 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 68 ConstructedInterpolants, 0 QuantifiedInterpolants, 397 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...