/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-RepeatedVariableLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/mix038_pso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-d5b4239aa45c8d22a30959944f2ef622f7386a6d-d5b4239 [2021-03-25 04:43:25,100 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-25 04:43:25,102 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-25 04:43:25,141 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-03-25 04:43:25,142 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-03-25 04:43:25,144 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-03-25 04:43:25,147 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-03-25 04:43:25,152 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-03-25 04:43:25,154 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-03-25 04:43:25,158 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-03-25 04:43:25,159 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-03-25 04:43:25,160 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-03-25 04:43:25,161 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-25 04:43:25,162 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-25 04:43:25,164 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-25 04:43:25,165 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-25 04:43:25,167 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-25 04:43:25,168 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-25 04:43:25,170 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-25 04:43:25,178 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-25 04:43:25,179 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-25 04:43:25,184 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-25 04:43:25,185 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-25 04:43:25,186 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-25 04:43:25,188 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-03-25 04:43:25,194 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-25 04:43:25,194 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-25 04:43:25,195 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-25 04:43:25,196 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-RepeatedVariableLbe.epf [2021-03-25 04:43:25,229 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-25 04:43:25,230 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-25 04:43:25,233 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-25 04:43:25,233 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-25 04:43:25,233 INFO L138 SettingsManager]: * Use SBE=true [2021-03-25 04:43:25,233 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-25 04:43:25,233 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-25 04:43:25,234 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-25 04:43:25,234 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-25 04:43:25,234 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-25 04:43:25,235 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-25 04:43:25,235 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-25 04:43:25,235 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-25 04:43:25,235 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-25 04:43:25,235 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-25 04:43:25,235 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-25 04:43:25,235 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-25 04:43:25,236 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-25 04:43:25,236 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-25 04:43:25,236 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-25 04:43:25,236 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-25 04:43:25,236 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-25 04:43:25,236 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-25 04:43:25,236 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-25 04:43:25,236 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-25 04:43:25,237 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-25 04:43:25,237 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-25 04:43:25,237 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2021-03-25 04:43:25,237 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-03-25 04:43:25,237 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-03-25 04:43:25,237 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-25 04:43:25,537 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-25 04:43:25,567 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-25 04:43:25,569 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-25 04:43:25,570 INFO L271 PluginConnector]: Initializing CDTParser... [2021-03-25 04:43:25,571 INFO L275 PluginConnector]: CDTParser initialized [2021-03-25 04:43:25,572 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/mix038_pso.opt.i [2021-03-25 04:43:25,628 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a168f8e8b/574ef52679d049608888b95bea24c37e/FLAGdacd69622 [2021-03-25 04:43:26,240 INFO L306 CDTParser]: Found 1 translation units. [2021-03-25 04:43:26,241 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix038_pso.opt.i [2021-03-25 04:43:26,262 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a168f8e8b/574ef52679d049608888b95bea24c37e/FLAGdacd69622 [2021-03-25 04:43:26,484 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a168f8e8b/574ef52679d049608888b95bea24c37e [2021-03-25 04:43:26,486 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-25 04:43:26,487 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-03-25 04:43:26,488 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-03-25 04:43:26,488 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-03-25 04:43:26,492 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-03-25 04:43:26,492 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.03 04:43:26" (1/1) ... [2021-03-25 04:43:26,493 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@42e45c7d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 04:43:26, skipping insertion in model container [2021-03-25 04:43:26,493 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.03 04:43:26" (1/1) ... [2021-03-25 04:43:26,501 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-03-25 04:43:26,550 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-03-25 04:43:26,663 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/mix038_pso.opt.i[948,961] [2021-03-25 04:43:26,896 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-25 04:43:26,905 INFO L203 MainTranslator]: Completed pre-run [2021-03-25 04:43:26,916 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/mix038_pso.opt.i[948,961] [2021-03-25 04:43:26,964 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-25 04:43:27,027 INFO L208 MainTranslator]: Completed translation [2021-03-25 04:43:27,027 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 04:43:27 WrapperNode [2021-03-25 04:43:27,027 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-03-25 04:43:27,028 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-25 04:43:27,029 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-25 04:43:27,029 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-25 04:43:27,038 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 04:43:27" (1/1) ... [2021-03-25 04:43:27,073 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 04:43:27" (1/1) ... [2021-03-25 04:43:27,103 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-25 04:43:27,104 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-25 04:43:27,104 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-25 04:43:27,104 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-25 04:43:27,111 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 04:43:27" (1/1) ... [2021-03-25 04:43:27,111 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 04:43:27" (1/1) ... [2021-03-25 04:43:27,126 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 04:43:27" (1/1) ... [2021-03-25 04:43:27,127 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 04:43:27" (1/1) ... [2021-03-25 04:43:27,133 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 04:43:27" (1/1) ... [2021-03-25 04:43:27,135 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 04:43:27" (1/1) ... [2021-03-25 04:43:27,155 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 04:43:27" (1/1) ... [2021-03-25 04:43:27,158 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-25 04:43:27,159 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-25 04:43:27,159 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-25 04:43:27,159 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-25 04:43:27,160 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 04:43:27" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-25 04:43:27,236 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-03-25 04:43:27,237 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-03-25 04:43:27,237 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-03-25 04:43:27,237 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-03-25 04:43:27,238 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-03-25 04:43:27,238 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-03-25 04:43:27,239 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-03-25 04:43:27,239 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-03-25 04:43:27,239 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-03-25 04:43:27,239 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-03-25 04:43:27,239 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-03-25 04:43:27,239 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-03-25 04:43:27,239 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-25 04:43:27,239 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-25 04:43:27,241 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-03-25 04:43:28,728 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-25 04:43:28,729 INFO L299 CfgBuilder]: Removed 10 assume(true) statements. [2021-03-25 04:43:28,731 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.03 04:43:28 BoogieIcfgContainer [2021-03-25 04:43:28,731 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-25 04:43:28,732 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-25 04:43:28,732 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-25 04:43:28,735 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-25 04:43:28,735 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.03 04:43:26" (1/3) ... [2021-03-25 04:43:28,736 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65b3e6fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.03 04:43:28, skipping insertion in model container [2021-03-25 04:43:28,736 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 04:43:27" (2/3) ... [2021-03-25 04:43:28,736 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65b3e6fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.03 04:43:28, skipping insertion in model container [2021-03-25 04:43:28,736 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.03 04:43:28" (3/3) ... [2021-03-25 04:43:28,738 INFO L111 eAbstractionObserver]: Analyzing ICFG mix038_pso.opt.i [2021-03-25 04:43:28,743 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-25 04:43:28,747 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2021-03-25 04:43:28,748 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-25 04:43:28,786 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:43:28,786 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:43:28,786 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:43:28,786 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:43:28,786 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:43:28,787 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:43:28,787 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:43:28,787 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:43:28,787 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:43:28,787 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:43:28,787 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:43:28,787 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:43:28,788 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:43:28,788 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:43:28,788 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:43:28,788 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:43:28,788 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:43:28,788 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:43:28,788 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:43:28,788 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:43:28,789 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:43:28,789 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:43:28,789 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:43:28,790 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:43:28,790 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:43:28,790 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:43:28,790 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:43:28,790 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:43:28,790 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:43:28,790 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:43:28,790 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:43:28,790 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:43:28,790 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:43:28,791 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:43:28,791 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:43:28,791 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:43:28,791 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:43:28,792 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:43:28,792 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:43:28,792 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:43:28,792 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:43:28,792 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:43:28,792 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:43:28,792 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:43:28,792 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:43:28,792 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:43:28,792 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:43:28,793 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:43:28,793 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:43:28,793 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:43:28,793 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:43:28,793 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:43:28,793 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:43:28,793 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite26| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:43:28,793 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:43:28,793 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:43:28,793 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:43:28,794 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:43:28,795 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:43:28,795 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:43:28,795 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:43:28,796 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:43:28,796 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:43:28,796 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:43:28,796 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:43:28,796 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:43:28,796 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:43:28,796 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:43:28,796 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:43:28,797 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:43:28,797 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:43:28,797 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:43:28,797 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:43:28,797 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:43:28,797 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:43:28,797 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:43:28,798 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:43:28,798 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:43:28,798 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:43:28,798 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:43:28,798 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:43:28,798 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:43:28,799 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:43:28,799 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:43:28,799 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:43:28,799 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:43:28,799 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:43:28,799 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:43:28,799 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:43:28,799 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:43:28,800 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:43:28,800 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite26| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:43:28,800 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:43:28,800 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:43:28,800 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:43:28,800 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:43:28,805 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:43:28,806 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:43:28,807 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:43:28,809 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:43:28,811 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:43:28,811 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:43:28,811 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:43:28,816 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:43:28,817 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:43:28,817 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:43:28,817 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:43:28,817 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:43:28,817 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:43:28,817 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:43:28,817 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:43:28,818 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:43:28,818 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:43:28,818 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:43:28,818 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:43:28,818 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:43:28,818 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:43:28,819 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite29| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:43:28,819 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:43:28,819 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:43:28,819 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:43:28,819 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:43:28,819 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:43:28,819 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:43:28,820 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite29| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:43:28,820 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:43:28,820 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:43:28,820 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:43:28,820 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:43:28,820 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:43:28,820 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:43:28,821 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:43:28,821 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:43:28,821 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:43:28,823 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:43:28,823 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:43:28,823 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:43:28,823 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:43:28,823 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:43:28,823 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:43:28,823 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:43:28,823 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:43:28,824 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:43:28,824 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite29| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:43:28,824 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:43:28,824 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:43:28,825 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:43:28,826 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:43:28,826 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:43:28,826 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:43:28,827 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:43:28,827 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:43:28,827 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:43:28,827 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:43:28,827 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite26| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:43:28,827 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:43:28,827 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:43:28,828 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:43:28,828 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:43:28,828 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:43:28,828 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:43:28,828 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:43:28,828 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:43:28,828 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:43:28,828 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:43:28,828 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:43:28,828 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:43:28,829 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:43:28,829 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:43:28,829 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:43:28,829 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:43:28,829 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:43:28,829 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:43:28,829 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:43:28,829 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:43:28,829 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:43:28,829 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:43:28,830 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-25 04:43:28,846 INFO L253 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-03-25 04:43:28,862 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-25 04:43:28,862 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-25 04:43:28,862 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-25 04:43:28,862 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-25 04:43:28,862 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-25 04:43:28,862 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-25 04:43:28,863 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-25 04:43:28,863 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-25 04:43:28,872 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 108 places, 100 transitions, 215 flow [2021-03-25 04:43:28,903 INFO L129 PetriNetUnfolder]: 2/97 cut-off events. [2021-03-25 04:43:28,903 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 04:43:28,906 INFO L84 FinitePrefix]: Finished finitePrefix Result has 107 conditions, 97 events. 2/97 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 65 event pairs, 0 based on Foata normal form. 0/93 useless extension candidates. Maximal degree in co-relation 61. Up to 2 conditions per place. [2021-03-25 04:43:28,906 INFO L82 GeneralOperation]: Start removeDead. Operand has 108 places, 100 transitions, 215 flow [2021-03-25 04:43:28,910 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 105 places, 97 transitions, 203 flow [2021-03-25 04:43:28,912 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 04:43:28,919 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 105 places, 97 transitions, 203 flow [2021-03-25 04:43:28,921 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 105 places, 97 transitions, 203 flow [2021-03-25 04:43:28,923 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 105 places, 97 transitions, 203 flow [2021-03-25 04:43:28,941 INFO L129 PetriNetUnfolder]: 2/97 cut-off events. [2021-03-25 04:43:28,941 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 04:43:28,942 INFO L84 FinitePrefix]: Finished finitePrefix Result has 107 conditions, 97 events. 2/97 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 60 event pairs, 0 based on Foata normal form. 0/93 useless extension candidates. Maximal degree in co-relation 61. Up to 2 conditions per place. [2021-03-25 04:43:28,945 INFO L142 LiptonReduction]: Number of co-enabled transitions 1644 [2021-03-25 04:43:30,051 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 58 [2021-03-25 04:43:30,411 WARN L205 SmtUtils]: Spent 295.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 81 [2021-03-25 04:43:30,537 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2021-03-25 04:43:31,386 INFO L154 LiptonReduction]: Checked pairs total: 2433 [2021-03-25 04:43:31,386 INFO L156 LiptonReduction]: Total number of compositions: 66 [2021-03-25 04:43:31,388 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 2477 [2021-03-25 04:43:31,396 INFO L129 PetriNetUnfolder]: 0/23 cut-off events. [2021-03-25 04:43:31,396 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 04:43:31,396 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 04:43:31,397 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 04:43:31,397 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 04:43:31,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 04:43:31,401 INFO L82 PathProgramCache]: Analyzing trace with hash -40721097, now seen corresponding path program 1 times [2021-03-25 04:43:31,408 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 04:43:31,408 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1786084036] [2021-03-25 04:43:31,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 04:43:31,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 04:43:31,607 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:43:31,608 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 04:43:31,611 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:43:31,612 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:43:31,619 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 04:43:31,620 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1786084036] [2021-03-25 04:43:31,620 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 04:43:31,620 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-25 04:43:31,621 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1309166927] [2021-03-25 04:43:31,627 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-25 04:43:31,627 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 04:43:31,640 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-25 04:43:31,642 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-25 04:43:31,646 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 148 out of 166 [2021-03-25 04:43:31,654 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 38 transitions, 85 flow. Second operand has 3 states, 3 states have (on average 148.66666666666666) internal successors, (446), 3 states have internal predecessors, (446), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:43:31,654 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 04:43:31,654 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 148 of 166 [2021-03-25 04:43:31,655 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 04:43:31,713 INFO L129 PetriNetUnfolder]: 9/79 cut-off events. [2021-03-25 04:43:31,714 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 04:43:31,714 INFO L84 FinitePrefix]: Finished finitePrefix Result has 111 conditions, 79 events. 9/79 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 228 event pairs, 3 based on Foata normal form. 5/77 useless extension candidates. Maximal degree in co-relation 92. Up to 17 conditions per place. [2021-03-25 04:43:31,715 INFO L132 encePairwiseOnDemand]: 162/166 looper letters, 5 selfloop transitions, 2 changer transitions 0/37 dead transitions. [2021-03-25 04:43:31,716 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 37 transitions, 97 flow [2021-03-25 04:43:31,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-25 04:43:31,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-25 04:43:31,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 454 transitions. [2021-03-25 04:43:31,735 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9116465863453815 [2021-03-25 04:43:31,735 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 454 transitions. [2021-03-25 04:43:31,736 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 454 transitions. [2021-03-25 04:43:31,740 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 04:43:31,742 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 454 transitions. [2021-03-25 04:43:31,747 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 151.33333333333334) internal successors, (454), 3 states have internal predecessors, (454), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:43:31,755 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 166.0) internal successors, (664), 4 states have internal predecessors, (664), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:43:31,756 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 166.0) internal successors, (664), 4 states have internal predecessors, (664), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:43:31,757 INFO L185 Difference]: Start difference. First operand has 47 places, 38 transitions, 85 flow. Second operand 3 states and 454 transitions. [2021-03-25 04:43:31,758 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 37 transitions, 97 flow [2021-03-25 04:43:31,761 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 37 transitions, 94 flow, removed 0 selfloop flow, removed 3 redundant places. [2021-03-25 04:43:31,763 INFO L241 Difference]: Finished difference. Result has 44 places, 35 transitions, 80 flow [2021-03-25 04:43:31,766 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=166, PETRI_DIFFERENCE_MINUEND_FLOW=76, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=80, PETRI_PLACES=44, PETRI_TRANSITIONS=35} [2021-03-25 04:43:31,767 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, -3 predicate places. [2021-03-25 04:43:31,767 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 04:43:31,767 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 44 places, 35 transitions, 80 flow [2021-03-25 04:43:31,768 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 44 places, 35 transitions, 80 flow [2021-03-25 04:43:31,768 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 44 places, 35 transitions, 80 flow [2021-03-25 04:43:31,776 INFO L129 PetriNetUnfolder]: 0/35 cut-off events. [2021-03-25 04:43:31,777 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 04:43:31,777 INFO L84 FinitePrefix]: Finished finitePrefix Result has 45 conditions, 35 events. 0/35 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 34 event pairs, 0 based on Foata normal form. 0/34 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2021-03-25 04:43:31,778 INFO L142 LiptonReduction]: Number of co-enabled transitions 312 [2021-03-25 04:43:32,077 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 81 [2021-03-25 04:43:32,227 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 81 [2021-03-25 04:43:33,109 INFO L154 LiptonReduction]: Checked pairs total: 1182 [2021-03-25 04:43:33,109 INFO L156 LiptonReduction]: Total number of compositions: 12 [2021-03-25 04:43:33,110 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1343 [2021-03-25 04:43:33,111 INFO L480 AbstractCegarLoop]: Abstraction has has 32 places, 23 transitions, 56 flow [2021-03-25 04:43:33,111 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 148.66666666666666) internal successors, (446), 3 states have internal predecessors, (446), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:43:33,111 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 04:43:33,111 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 04:43:33,112 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-25 04:43:33,112 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 04:43:33,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 04:43:33,112 INFO L82 PathProgramCache]: Analyzing trace with hash -4495086, now seen corresponding path program 1 times [2021-03-25 04:43:33,112 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 04:43:33,112 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [369002331] [2021-03-25 04:43:33,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 04:43:33,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 04:43:33,223 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:43:33,224 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 04:43:33,229 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-03-25 04:43:33,230 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 04:43:33,237 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:43:33,238 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:43:33,241 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 04:43:33,241 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [369002331] [2021-03-25 04:43:33,242 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 04:43:33,242 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-25 04:43:33,242 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [662338251] [2021-03-25 04:43:33,243 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-25 04:43:33,243 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 04:43:33,244 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-25 04:43:33,244 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-25 04:43:33,245 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 137 out of 178 [2021-03-25 04:43:33,246 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 23 transitions, 56 flow. Second operand has 4 states, 4 states have (on average 138.0) internal successors, (552), 4 states have internal predecessors, (552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:43:33,246 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 04:43:33,246 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 137 of 178 [2021-03-25 04:43:33,246 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 04:43:33,346 INFO L129 PetriNetUnfolder]: 101/257 cut-off events. [2021-03-25 04:43:33,346 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 04:43:33,347 INFO L84 FinitePrefix]: Finished finitePrefix Result has 454 conditions, 257 events. 101/257 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 1343 event pairs, 20 based on Foata normal form. 0/231 useless extension candidates. Maximal degree in co-relation 442. Up to 82 conditions per place. [2021-03-25 04:43:33,349 INFO L132 encePairwiseOnDemand]: 170/178 looper letters, 7 selfloop transitions, 6 changer transitions 12/39 dead transitions. [2021-03-25 04:43:33,349 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 39 transitions, 138 flow [2021-03-25 04:43:33,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-25 04:43:33,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-25 04:43:33,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 711 transitions. [2021-03-25 04:43:33,351 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.798876404494382 [2021-03-25 04:43:33,351 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 711 transitions. [2021-03-25 04:43:33,352 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 711 transitions. [2021-03-25 04:43:33,352 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 04:43:33,352 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 711 transitions. [2021-03-25 04:43:33,354 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 142.2) internal successors, (711), 5 states have internal predecessors, (711), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:43:33,356 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 178.0) internal successors, (1068), 6 states have internal predecessors, (1068), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:43:33,357 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 178.0) internal successors, (1068), 6 states have internal predecessors, (1068), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:43:33,357 INFO L185 Difference]: Start difference. First operand has 32 places, 23 transitions, 56 flow. Second operand 5 states and 711 transitions. [2021-03-25 04:43:33,357 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 39 transitions, 138 flow [2021-03-25 04:43:33,357 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 39 transitions, 134 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-03-25 04:43:33,358 INFO L241 Difference]: Finished difference. Result has 38 places, 27 transitions, 106 flow [2021-03-25 04:43:33,358 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=178, PETRI_DIFFERENCE_MINUEND_FLOW=52, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=106, PETRI_PLACES=38, PETRI_TRANSITIONS=27} [2021-03-25 04:43:33,359 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, -9 predicate places. [2021-03-25 04:43:33,359 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 04:43:33,359 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 38 places, 27 transitions, 106 flow [2021-03-25 04:43:33,362 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 38 places, 27 transitions, 106 flow [2021-03-25 04:43:33,362 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 35 places, 27 transitions, 106 flow [2021-03-25 04:43:33,386 INFO L129 PetriNetUnfolder]: 48/146 cut-off events. [2021-03-25 04:43:33,386 INFO L130 PetriNetUnfolder]: For 33/36 co-relation queries the response was YES. [2021-03-25 04:43:33,386 INFO L84 FinitePrefix]: Finished finitePrefix Result has 337 conditions, 146 events. 48/146 cut-off events. For 33/36 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 685 event pairs, 20 based on Foata normal form. 0/138 useless extension candidates. Maximal degree in co-relation 324. Up to 81 conditions per place. [2021-03-25 04:43:33,388 INFO L142 LiptonReduction]: Number of co-enabled transitions 210 [2021-03-25 04:43:33,655 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 81 [2021-03-25 04:43:34,028 WARN L205 SmtUtils]: Spent 296.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 118 [2021-03-25 04:43:34,204 WARN L205 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2021-03-25 04:43:34,535 WARN L205 SmtUtils]: Spent 329.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 118 [2021-03-25 04:43:34,671 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2021-03-25 04:43:34,678 INFO L154 LiptonReduction]: Checked pairs total: 489 [2021-03-25 04:43:34,678 INFO L156 LiptonReduction]: Total number of compositions: 2 [2021-03-25 04:43:34,678 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1319 [2021-03-25 04:43:34,679 INFO L480 AbstractCegarLoop]: Abstraction has has 33 places, 25 transitions, 102 flow [2021-03-25 04:43:34,680 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 138.0) internal successors, (552), 4 states have internal predecessors, (552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:43:34,680 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 04:43:34,680 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 04:43:34,680 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-25 04:43:34,680 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 04:43:34,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 04:43:34,681 INFO L82 PathProgramCache]: Analyzing trace with hash 1752072675, now seen corresponding path program 1 times [2021-03-25 04:43:34,681 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 04:43:34,681 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [287635202] [2021-03-25 04:43:34,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 04:43:34,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 04:43:34,772 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:43:34,773 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 04:43:34,773 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:43:34,774 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:43:34,777 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-03-25 04:43:34,778 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 04:43:34,786 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 04:43:34,786 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [287635202] [2021-03-25 04:43:34,786 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 04:43:34,786 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-25 04:43:34,786 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [835650564] [2021-03-25 04:43:34,787 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-25 04:43:34,787 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 04:43:34,787 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-25 04:43:34,787 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-03-25 04:43:34,788 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 141 out of 180 [2021-03-25 04:43:34,789 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 25 transitions, 102 flow. Second operand has 4 states, 4 states have (on average 142.0) internal successors, (568), 4 states have internal predecessors, (568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:43:34,789 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 04:43:34,789 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 141 of 180 [2021-03-25 04:43:34,789 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 04:43:34,829 INFO L129 PetriNetUnfolder]: 39/133 cut-off events. [2021-03-25 04:43:34,829 INFO L130 PetriNetUnfolder]: For 56/123 co-relation queries the response was YES. [2021-03-25 04:43:34,830 INFO L84 FinitePrefix]: Finished finitePrefix Result has 382 conditions, 133 events. 39/133 cut-off events. For 56/123 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 592 event pairs, 6 based on Foata normal form. 1/130 useless extension candidates. Maximal degree in co-relation 369. Up to 68 conditions per place. [2021-03-25 04:43:34,831 INFO L132 encePairwiseOnDemand]: 173/180 looper letters, 9 selfloop transitions, 7 changer transitions 0/29 dead transitions. [2021-03-25 04:43:34,831 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 29 transitions, 158 flow [2021-03-25 04:43:34,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-25 04:43:34,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-25 04:43:34,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 578 transitions. [2021-03-25 04:43:34,833 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8027777777777778 [2021-03-25 04:43:34,833 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 578 transitions. [2021-03-25 04:43:34,833 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 578 transitions. [2021-03-25 04:43:34,834 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 04:43:34,834 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 578 transitions. [2021-03-25 04:43:34,835 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 144.5) internal successors, (578), 4 states have internal predecessors, (578), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:43:34,837 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 180.0) internal successors, (900), 5 states have internal predecessors, (900), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:43:34,837 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 180.0) internal successors, (900), 5 states have internal predecessors, (900), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:43:34,837 INFO L185 Difference]: Start difference. First operand has 33 places, 25 transitions, 102 flow. Second operand 4 states and 578 transitions. [2021-03-25 04:43:34,838 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 29 transitions, 158 flow [2021-03-25 04:43:34,860 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 29 transitions, 128 flow, removed 6 selfloop flow, removed 4 redundant places. [2021-03-25 04:43:34,861 INFO L241 Difference]: Finished difference. Result has 35 places, 28 transitions, 128 flow [2021-03-25 04:43:34,861 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=180, PETRI_DIFFERENCE_MINUEND_FLOW=80, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=128, PETRI_PLACES=35, PETRI_TRANSITIONS=28} [2021-03-25 04:43:34,861 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, -12 predicate places. [2021-03-25 04:43:34,861 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 04:43:34,862 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 35 places, 28 transitions, 128 flow [2021-03-25 04:43:34,862 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 35 places, 28 transitions, 128 flow [2021-03-25 04:43:34,863 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 35 places, 28 transitions, 128 flow [2021-03-25 04:43:34,882 INFO L129 PetriNetUnfolder]: 39/137 cut-off events. [2021-03-25 04:43:34,882 INFO L130 PetriNetUnfolder]: For 72/82 co-relation queries the response was YES. [2021-03-25 04:43:34,883 INFO L84 FinitePrefix]: Finished finitePrefix Result has 318 conditions, 137 events. 39/137 cut-off events. For 72/82 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 671 event pairs, 18 based on Foata normal form. 0/132 useless extension candidates. Maximal degree in co-relation 306. Up to 68 conditions per place. [2021-03-25 04:43:34,885 INFO L142 LiptonReduction]: Number of co-enabled transitions 226 [2021-03-25 04:43:34,890 INFO L154 LiptonReduction]: Checked pairs total: 246 [2021-03-25 04:43:34,890 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 04:43:34,890 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 29 [2021-03-25 04:43:34,895 INFO L480 AbstractCegarLoop]: Abstraction has has 35 places, 28 transitions, 128 flow [2021-03-25 04:43:34,896 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 142.0) internal successors, (568), 4 states have internal predecessors, (568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:43:34,896 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 04:43:34,896 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 04:43:34,896 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-03-25 04:43:34,896 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 04:43:34,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 04:43:34,897 INFO L82 PathProgramCache]: Analyzing trace with hash 1374222271, now seen corresponding path program 1 times [2021-03-25 04:43:34,897 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 04:43:34,897 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [19242582] [2021-03-25 04:43:34,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 04:43:34,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 04:43:34,950 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:43:34,951 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:43:34,954 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-03-25 04:43:34,955 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 04:43:34,964 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 04:43:34,965 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [19242582] [2021-03-25 04:43:34,965 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 04:43:34,965 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-25 04:43:34,965 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1166866470] [2021-03-25 04:43:34,965 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-25 04:43:34,966 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 04:43:34,966 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-25 04:43:34,966 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-03-25 04:43:34,967 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 141 out of 180 [2021-03-25 04:43:34,968 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 28 transitions, 128 flow. Second operand has 4 states, 4 states have (on average 141.75) internal successors, (567), 4 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:43:34,968 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 04:43:34,968 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 141 of 180 [2021-03-25 04:43:34,968 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 04:43:35,009 INFO L129 PetriNetUnfolder]: 33/121 cut-off events. [2021-03-25 04:43:35,009 INFO L130 PetriNetUnfolder]: For 82/118 co-relation queries the response was YES. [2021-03-25 04:43:35,010 INFO L84 FinitePrefix]: Finished finitePrefix Result has 354 conditions, 121 events. 33/121 cut-off events. For 82/118 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 531 event pairs, 13 based on Foata normal form. 5/123 useless extension candidates. Maximal degree in co-relation 340. Up to 60 conditions per place. [2021-03-25 04:43:35,010 INFO L132 encePairwiseOnDemand]: 173/180 looper letters, 7 selfloop transitions, 13 changer transitions 0/33 dead transitions. [2021-03-25 04:43:35,011 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 33 transitions, 198 flow [2021-03-25 04:43:35,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-25 04:43:35,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-25 04:43:35,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 580 transitions. [2021-03-25 04:43:35,013 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8055555555555556 [2021-03-25 04:43:35,013 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 580 transitions. [2021-03-25 04:43:35,013 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 580 transitions. [2021-03-25 04:43:35,013 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 04:43:35,014 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 580 transitions. [2021-03-25 04:43:35,015 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 145.0) internal successors, (580), 4 states have internal predecessors, (580), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:43:35,016 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 180.0) internal successors, (900), 5 states have internal predecessors, (900), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:43:35,017 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 180.0) internal successors, (900), 5 states have internal predecessors, (900), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:43:35,017 INFO L185 Difference]: Start difference. First operand has 35 places, 28 transitions, 128 flow. Second operand 4 states and 580 transitions. [2021-03-25 04:43:35,017 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 33 transitions, 198 flow [2021-03-25 04:43:35,019 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 33 transitions, 194 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-25 04:43:35,020 INFO L241 Difference]: Finished difference. Result has 39 places, 32 transitions, 197 flow [2021-03-25 04:43:35,020 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=180, PETRI_DIFFERENCE_MINUEND_FLOW=125, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=197, PETRI_PLACES=39, PETRI_TRANSITIONS=32} [2021-03-25 04:43:35,020 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, -8 predicate places. [2021-03-25 04:43:35,020 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 04:43:35,021 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 39 places, 32 transitions, 197 flow [2021-03-25 04:43:35,021 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 39 places, 32 transitions, 197 flow [2021-03-25 04:43:35,021 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 39 places, 32 transitions, 197 flow [2021-03-25 04:43:35,037 INFO L129 PetriNetUnfolder]: 33/118 cut-off events. [2021-03-25 04:43:35,037 INFO L130 PetriNetUnfolder]: For 149/161 co-relation queries the response was YES. [2021-03-25 04:43:35,037 INFO L84 FinitePrefix]: Finished finitePrefix Result has 349 conditions, 118 events. 33/118 cut-off events. For 149/161 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 536 event pairs, 12 based on Foata normal form. 1/118 useless extension candidates. Maximal degree in co-relation 334. Up to 60 conditions per place. [2021-03-25 04:43:35,039 INFO L142 LiptonReduction]: Number of co-enabled transitions 256 [2021-03-25 04:43:35,043 INFO L154 LiptonReduction]: Checked pairs total: 291 [2021-03-25 04:43:35,043 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 04:43:35,043 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 23 [2021-03-25 04:43:35,044 INFO L480 AbstractCegarLoop]: Abstraction has has 39 places, 32 transitions, 197 flow [2021-03-25 04:43:35,044 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 141.75) internal successors, (567), 4 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:43:35,044 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 04:43:35,045 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 04:43:35,045 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-03-25 04:43:35,045 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 04:43:35,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 04:43:35,045 INFO L82 PathProgramCache]: Analyzing trace with hash -1914293800, now seen corresponding path program 1 times [2021-03-25 04:43:35,046 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 04:43:35,046 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1586611406] [2021-03-25 04:43:35,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 04:43:35,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 04:43:35,108 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:43:35,109 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:43:35,113 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:43:35,113 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 04:43:35,120 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:43:35,121 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 04:43:35,121 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 04:43:35,121 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1586611406] [2021-03-25 04:43:35,121 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 04:43:35,122 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-25 04:43:35,122 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [71234398] [2021-03-25 04:43:35,122 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-25 04:43:35,122 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 04:43:35,126 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-25 04:43:35,126 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-25 04:43:35,127 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 152 out of 180 [2021-03-25 04:43:35,128 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 32 transitions, 197 flow. Second operand has 4 states, 4 states have (on average 152.75) internal successors, (611), 4 states have internal predecessors, (611), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:43:35,128 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 04:43:35,128 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 152 of 180 [2021-03-25 04:43:35,128 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 04:43:35,213 INFO L129 PetriNetUnfolder]: 139/350 cut-off events. [2021-03-25 04:43:35,214 INFO L130 PetriNetUnfolder]: For 194/212 co-relation queries the response was YES. [2021-03-25 04:43:35,215 INFO L84 FinitePrefix]: Finished finitePrefix Result has 864 conditions, 350 events. 139/350 cut-off events. For 194/212 co-relation queries the response was YES. Maximal size of possible extension queue 64. Compared 2142 event pairs, 57 based on Foata normal form. 36/364 useless extension candidates. Maximal degree in co-relation 847. Up to 195 conditions per place. [2021-03-25 04:43:35,219 INFO L132 encePairwiseOnDemand]: 174/180 looper letters, 8 selfloop transitions, 8 changer transitions 0/42 dead transitions. [2021-03-25 04:43:35,219 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 42 transitions, 249 flow [2021-03-25 04:43:35,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-25 04:43:35,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-25 04:43:35,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 778 transitions. [2021-03-25 04:43:35,222 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8644444444444445 [2021-03-25 04:43:35,222 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 778 transitions. [2021-03-25 04:43:35,222 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 778 transitions. [2021-03-25 04:43:35,222 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 04:43:35,223 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 778 transitions. [2021-03-25 04:43:35,224 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 155.6) internal successors, (778), 5 states have internal predecessors, (778), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:43:35,226 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 180.0) internal successors, (1080), 6 states have internal predecessors, (1080), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:43:35,227 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 180.0) internal successors, (1080), 6 states have internal predecessors, (1080), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:43:35,228 INFO L185 Difference]: Start difference. First operand has 39 places, 32 transitions, 197 flow. Second operand 5 states and 778 transitions. [2021-03-25 04:43:35,228 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 42 transitions, 249 flow [2021-03-25 04:43:35,232 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 42 transitions, 247 flow, removed 1 selfloop flow, removed 0 redundant places. [2021-03-25 04:43:35,233 INFO L241 Difference]: Finished difference. Result has 46 places, 39 transitions, 255 flow [2021-03-25 04:43:35,233 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=180, PETRI_DIFFERENCE_MINUEND_FLOW=195, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=255, PETRI_PLACES=46, PETRI_TRANSITIONS=39} [2021-03-25 04:43:35,234 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, -1 predicate places. [2021-03-25 04:43:35,234 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 04:43:35,234 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 46 places, 39 transitions, 255 flow [2021-03-25 04:43:35,234 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 46 places, 39 transitions, 255 flow [2021-03-25 04:43:35,234 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 46 places, 39 transitions, 255 flow [2021-03-25 04:43:35,273 INFO L129 PetriNetUnfolder]: 141/351 cut-off events. [2021-03-25 04:43:35,273 INFO L130 PetriNetUnfolder]: For 385/422 co-relation queries the response was YES. [2021-03-25 04:43:35,275 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1087 conditions, 351 events. 141/351 cut-off events. For 385/422 co-relation queries the response was YES. Maximal size of possible extension queue 63. Compared 2163 event pairs, 53 based on Foata normal form. 8/340 useless extension candidates. Maximal degree in co-relation 1067. Up to 196 conditions per place. [2021-03-25 04:43:35,278 INFO L142 LiptonReduction]: Number of co-enabled transitions 380 [2021-03-25 04:43:35,287 INFO L154 LiptonReduction]: Checked pairs total: 328 [2021-03-25 04:43:35,288 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 04:43:35,288 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 54 [2021-03-25 04:43:35,290 INFO L480 AbstractCegarLoop]: Abstraction has has 46 places, 38 transitions, 249 flow [2021-03-25 04:43:35,290 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 152.75) internal successors, (611), 4 states have internal predecessors, (611), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:43:35,291 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 04:43:35,291 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 04:43:35,291 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-03-25 04:43:35,291 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 04:43:35,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 04:43:35,291 INFO L82 PathProgramCache]: Analyzing trace with hash 240472098, now seen corresponding path program 1 times [2021-03-25 04:43:35,292 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 04:43:35,294 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1669337623] [2021-03-25 04:43:35,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 04:43:35,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 04:43:35,359 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:43:35,359 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 04:43:35,360 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:43:35,360 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:43:35,364 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 04:43:35,364 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1669337623] [2021-03-25 04:43:35,365 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 04:43:35,365 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-25 04:43:35,365 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1981439515] [2021-03-25 04:43:35,365 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-25 04:43:35,365 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 04:43:35,365 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-25 04:43:35,366 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-25 04:43:35,366 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 153 out of 180 [2021-03-25 04:43:35,367 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 38 transitions, 249 flow. Second operand has 3 states, 3 states have (on average 154.0) internal successors, (462), 3 states have internal predecessors, (462), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:43:35,367 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 04:43:35,367 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 153 of 180 [2021-03-25 04:43:35,367 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 04:43:35,414 INFO L129 PetriNetUnfolder]: 146/354 cut-off events. [2021-03-25 04:43:35,414 INFO L130 PetriNetUnfolder]: For 569/643 co-relation queries the response was YES. [2021-03-25 04:43:35,416 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1112 conditions, 354 events. 146/354 cut-off events. For 569/643 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 2085 event pairs, 70 based on Foata normal form. 23/345 useless extension candidates. Maximal degree in co-relation 1090. Up to 210 conditions per place. [2021-03-25 04:43:35,417 INFO L132 encePairwiseOnDemand]: 177/180 looper letters, 4 selfloop transitions, 6 changer transitions 2/35 dead transitions. [2021-03-25 04:43:35,417 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 35 transitions, 253 flow [2021-03-25 04:43:35,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-25 04:43:35,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-25 04:43:35,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 465 transitions. [2021-03-25 04:43:35,419 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8611111111111112 [2021-03-25 04:43:35,420 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 465 transitions. [2021-03-25 04:43:35,420 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 465 transitions. [2021-03-25 04:43:35,420 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 04:43:35,420 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 465 transitions. [2021-03-25 04:43:35,421 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 155.0) internal successors, (465), 3 states have internal predecessors, (465), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:43:35,422 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 180.0) internal successors, (720), 4 states have internal predecessors, (720), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:43:35,423 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 180.0) internal successors, (720), 4 states have internal predecessors, (720), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:43:35,423 INFO L185 Difference]: Start difference. First operand has 46 places, 38 transitions, 249 flow. Second operand 3 states and 465 transitions. [2021-03-25 04:43:35,423 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 35 transitions, 253 flow [2021-03-25 04:43:35,426 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 35 transitions, 247 flow, removed 1 selfloop flow, removed 2 redundant places. [2021-03-25 04:43:35,427 INFO L241 Difference]: Finished difference. Result has 45 places, 33 transitions, 227 flow [2021-03-25 04:43:35,427 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=180, PETRI_DIFFERENCE_MINUEND_FLOW=225, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=227, PETRI_PLACES=45, PETRI_TRANSITIONS=33} [2021-03-25 04:43:35,427 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, -2 predicate places. [2021-03-25 04:43:35,427 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 04:43:35,427 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 45 places, 33 transitions, 227 flow [2021-03-25 04:43:35,428 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 45 places, 33 transitions, 227 flow [2021-03-25 04:43:35,428 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 45 places, 33 transitions, 227 flow [2021-03-25 04:43:35,458 INFO L129 PetriNetUnfolder]: 136/332 cut-off events. [2021-03-25 04:43:35,458 INFO L130 PetriNetUnfolder]: For 463/498 co-relation queries the response was YES. [2021-03-25 04:43:35,459 INFO L84 FinitePrefix]: Finished finitePrefix Result has 982 conditions, 332 events. 136/332 cut-off events. For 463/498 co-relation queries the response was YES. Maximal size of possible extension queue 58. Compared 1955 event pairs, 65 based on Foata normal form. 1/311 useless extension candidates. Maximal degree in co-relation 962. Up to 198 conditions per place. [2021-03-25 04:43:35,462 INFO L142 LiptonReduction]: Number of co-enabled transitions 252 [2021-03-25 04:43:35,467 INFO L154 LiptonReduction]: Checked pairs total: 94 [2021-03-25 04:43:35,467 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 04:43:35,467 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 40 [2021-03-25 04:43:35,468 INFO L480 AbstractCegarLoop]: Abstraction has has 45 places, 33 transitions, 227 flow [2021-03-25 04:43:35,469 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 154.0) internal successors, (462), 3 states have internal predecessors, (462), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:43:35,469 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 04:43:35,469 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 04:43:35,469 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-03-25 04:43:35,469 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 04:43:35,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 04:43:35,469 INFO L82 PathProgramCache]: Analyzing trace with hash -1463073190, now seen corresponding path program 1 times [2021-03-25 04:43:35,470 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 04:43:35,470 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2020793318] [2021-03-25 04:43:35,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 04:43:35,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 04:43:35,569 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:43:35,569 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:43:35,572 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:43:35,573 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:43:35,579 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:43:35,580 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 04:43:35,586 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:43:35,587 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 04:43:35,587 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 04:43:35,587 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2020793318] [2021-03-25 04:43:35,587 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 04:43:35,587 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-25 04:43:35,588 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1625262421] [2021-03-25 04:43:35,588 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-25 04:43:35,588 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 04:43:35,589 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-25 04:43:35,589 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-03-25 04:43:35,590 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 152 out of 180 [2021-03-25 04:43:35,591 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 33 transitions, 227 flow. Second operand has 5 states, 5 states have (on average 152.8) internal successors, (764), 5 states have internal predecessors, (764), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:43:35,591 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 04:43:35,591 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 152 of 180 [2021-03-25 04:43:35,591 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 04:43:35,657 INFO L129 PetriNetUnfolder]: 79/247 cut-off events. [2021-03-25 04:43:35,658 INFO L130 PetriNetUnfolder]: For 367/486 co-relation queries the response was YES. [2021-03-25 04:43:35,659 INFO L84 FinitePrefix]: Finished finitePrefix Result has 901 conditions, 247 events. 79/247 cut-off events. For 367/486 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 1392 event pairs, 14 based on Foata normal form. 72/312 useless extension candidates. Maximal degree in co-relation 879. Up to 162 conditions per place. [2021-03-25 04:43:35,660 INFO L132 encePairwiseOnDemand]: 174/180 looper letters, 5 selfloop transitions, 11 changer transitions 4/43 dead transitions. [2021-03-25 04:43:35,660 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 43 transitions, 323 flow [2021-03-25 04:43:35,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-25 04:43:35,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-25 04:43:35,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 933 transitions. [2021-03-25 04:43:35,663 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8638888888888889 [2021-03-25 04:43:35,663 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 933 transitions. [2021-03-25 04:43:35,663 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 933 transitions. [2021-03-25 04:43:35,663 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 04:43:35,663 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 933 transitions. [2021-03-25 04:43:35,665 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 155.5) internal successors, (933), 6 states have internal predecessors, (933), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:43:35,667 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 180.0) internal successors, (1260), 7 states have internal predecessors, (1260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:43:35,668 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 180.0) internal successors, (1260), 7 states have internal predecessors, (1260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:43:35,668 INFO L185 Difference]: Start difference. First operand has 45 places, 33 transitions, 227 flow. Second operand 6 states and 933 transitions. [2021-03-25 04:43:35,668 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 43 transitions, 323 flow [2021-03-25 04:43:35,670 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 43 transitions, 306 flow, removed 1 selfloop flow, removed 2 redundant places. [2021-03-25 04:43:35,672 INFO L241 Difference]: Finished difference. Result has 51 places, 39 transitions, 288 flow [2021-03-25 04:43:35,673 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=180, PETRI_DIFFERENCE_MINUEND_FLOW=210, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=288, PETRI_PLACES=51, PETRI_TRANSITIONS=39} [2021-03-25 04:43:35,673 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 4 predicate places. [2021-03-25 04:43:35,673 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 04:43:35,673 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 51 places, 39 transitions, 288 flow [2021-03-25 04:43:35,674 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 51 places, 39 transitions, 288 flow [2021-03-25 04:43:35,674 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 51 places, 39 transitions, 288 flow [2021-03-25 04:43:35,695 INFO L129 PetriNetUnfolder]: 69/227 cut-off events. [2021-03-25 04:43:35,696 INFO L130 PetriNetUnfolder]: For 628/724 co-relation queries the response was YES. [2021-03-25 04:43:35,697 INFO L84 FinitePrefix]: Finished finitePrefix Result has 907 conditions, 227 events. 69/227 cut-off events. For 628/724 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 1272 event pairs, 13 based on Foata normal form. 1/221 useless extension candidates. Maximal degree in co-relation 884. Up to 146 conditions per place. [2021-03-25 04:43:35,699 INFO L142 LiptonReduction]: Number of co-enabled transitions 290 [2021-03-25 04:43:35,707 INFO L154 LiptonReduction]: Checked pairs total: 344 [2021-03-25 04:43:35,707 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 04:43:35,708 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 35 [2021-03-25 04:43:35,708 INFO L480 AbstractCegarLoop]: Abstraction has has 51 places, 38 transitions, 280 flow [2021-03-25 04:43:35,708 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 152.8) internal successors, (764), 5 states have internal predecessors, (764), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:43:35,708 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 04:43:35,708 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 04:43:35,709 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-03-25 04:43:35,709 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 04:43:35,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 04:43:35,709 INFO L82 PathProgramCache]: Analyzing trace with hash 1909171201, now seen corresponding path program 1 times [2021-03-25 04:43:35,709 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 04:43:35,711 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2009002947] [2021-03-25 04:43:35,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 04:43:35,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 04:43:35,797 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:43:35,799 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:43:35,801 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:43:35,802 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:43:35,805 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:43:35,805 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:43:35,810 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:43:35,811 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 04:43:35,818 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:43:35,819 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 04:43:35,820 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 04:43:35,820 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2009002947] [2021-03-25 04:43:35,821 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 04:43:35,821 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-25 04:43:35,821 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1815466392] [2021-03-25 04:43:35,821 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-25 04:43:35,822 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 04:43:35,822 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-25 04:43:35,822 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-03-25 04:43:35,823 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 152 out of 180 [2021-03-25 04:43:35,824 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 38 transitions, 280 flow. Second operand has 6 states, 6 states have (on average 152.83333333333334) internal successors, (917), 6 states have internal predecessors, (917), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:43:35,824 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 04:43:35,824 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 152 of 180 [2021-03-25 04:43:35,825 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 04:43:35,883 INFO L129 PetriNetUnfolder]: 39/142 cut-off events. [2021-03-25 04:43:35,883 INFO L130 PetriNetUnfolder]: For 422/498 co-relation queries the response was YES. [2021-03-25 04:43:35,884 INFO L84 FinitePrefix]: Finished finitePrefix Result has 627 conditions, 142 events. 39/142 cut-off events. For 422/498 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 634 event pairs, 5 based on Foata normal form. 48/186 useless extension candidates. Maximal degree in co-relation 602. Up to 86 conditions per place. [2021-03-25 04:43:35,885 INFO L132 encePairwiseOnDemand]: 174/180 looper letters, 2 selfloop transitions, 11 changer transitions 6/39 dead transitions. [2021-03-25 04:43:35,885 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 39 transitions, 312 flow [2021-03-25 04:43:35,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 04:43:35,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 04:43:35,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1082 transitions. [2021-03-25 04:43:35,888 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8587301587301587 [2021-03-25 04:43:35,888 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1082 transitions. [2021-03-25 04:43:35,888 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1082 transitions. [2021-03-25 04:43:35,889 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 04:43:35,889 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1082 transitions. [2021-03-25 04:43:35,891 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 154.57142857142858) internal successors, (1082), 7 states have internal predecessors, (1082), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:43:35,894 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 180.0) internal successors, (1440), 8 states have internal predecessors, (1440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:43:35,894 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 180.0) internal successors, (1440), 8 states have internal predecessors, (1440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:43:35,894 INFO L185 Difference]: Start difference. First operand has 51 places, 38 transitions, 280 flow. Second operand 7 states and 1082 transitions. [2021-03-25 04:43:35,894 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 39 transitions, 312 flow [2021-03-25 04:43:35,897 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 39 transitions, 279 flow, removed 10 selfloop flow, removed 5 redundant places. [2021-03-25 04:43:35,897 INFO L241 Difference]: Finished difference. Result has 53 places, 33 transitions, 235 flow [2021-03-25 04:43:35,898 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=180, PETRI_DIFFERENCE_MINUEND_FLOW=217, PETRI_DIFFERENCE_MINUEND_PLACES=44, 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=7, PETRI_FLOW=235, PETRI_PLACES=53, PETRI_TRANSITIONS=33} [2021-03-25 04:43:35,898 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 6 predicate places. [2021-03-25 04:43:35,898 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 04:43:35,898 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 53 places, 33 transitions, 235 flow [2021-03-25 04:43:35,898 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 53 places, 33 transitions, 235 flow [2021-03-25 04:43:35,899 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 52 places, 33 transitions, 235 flow [2021-03-25 04:43:35,906 INFO L129 PetriNetUnfolder]: 16/68 cut-off events. [2021-03-25 04:43:35,907 INFO L130 PetriNetUnfolder]: For 130/138 co-relation queries the response was YES. [2021-03-25 04:43:35,908 INFO L84 FinitePrefix]: Finished finitePrefix Result has 268 conditions, 68 events. 16/68 cut-off events. For 130/138 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 185 event pairs, 2 based on Foata normal form. 1/68 useless extension candidates. Maximal degree in co-relation 246. Up to 23 conditions per place. [2021-03-25 04:43:35,908 INFO L142 LiptonReduction]: Number of co-enabled transitions 146 [2021-03-25 04:43:36,235 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2021-03-25 04:43:36,406 WARN L205 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2021-03-25 04:43:36,729 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2021-03-25 04:43:36,858 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2021-03-25 04:43:36,862 INFO L154 LiptonReduction]: Checked pairs total: 223 [2021-03-25 04:43:36,863 INFO L156 LiptonReduction]: Total number of compositions: 3 [2021-03-25 04:43:36,863 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 965 [2021-03-25 04:43:36,863 INFO L480 AbstractCegarLoop]: Abstraction has has 49 places, 30 transitions, 221 flow [2021-03-25 04:43:36,864 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 152.83333333333334) internal successors, (917), 6 states have internal predecessors, (917), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:43:36,864 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 04:43:36,864 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 04:43:36,864 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-03-25 04:43:36,864 INFO L428 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 04:43:36,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 04:43:36,864 INFO L82 PathProgramCache]: Analyzing trace with hash -165555857, now seen corresponding path program 1 times [2021-03-25 04:43:36,864 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 04:43:36,864 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [793002566] [2021-03-25 04:43:36,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 04:43:36,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 04:43:36,912 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:43:36,912 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 04:43:36,913 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:43:36,913 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:43:36,916 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-03-25 04:43:36,917 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 04:43:36,925 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 04:43:36,925 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [793002566] [2021-03-25 04:43:36,925 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 04:43:36,925 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-25 04:43:36,925 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1893583859] [2021-03-25 04:43:36,926 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-25 04:43:36,926 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 04:43:36,926 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-25 04:43:36,926 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-25 04:43:36,927 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 138 out of 182 [2021-03-25 04:43:36,928 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 30 transitions, 221 flow. Second operand has 4 states, 4 states have (on average 140.0) internal successors, (560), 4 states have internal predecessors, (560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:43:36,928 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 04:43:36,928 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 138 of 182 [2021-03-25 04:43:36,928 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 04:43:36,971 INFO L129 PetriNetUnfolder]: 21/75 cut-off events. [2021-03-25 04:43:36,971 INFO L130 PetriNetUnfolder]: For 253/285 co-relation queries the response was YES. [2021-03-25 04:43:36,971 INFO L84 FinitePrefix]: Finished finitePrefix Result has 319 conditions, 75 events. 21/75 cut-off events. For 253/285 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 231 event pairs, 1 based on Foata normal form. 14/88 useless extension candidates. Maximal degree in co-relation 294. Up to 25 conditions per place. [2021-03-25 04:43:36,972 INFO L132 encePairwiseOnDemand]: 174/182 looper letters, 8 selfloop transitions, 12 changer transitions 0/36 dead transitions. [2021-03-25 04:43:36,972 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 36 transitions, 296 flow [2021-03-25 04:43:36,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-25 04:43:36,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-25 04:43:36,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 707 transitions. [2021-03-25 04:43:36,974 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7769230769230769 [2021-03-25 04:43:36,974 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 707 transitions. [2021-03-25 04:43:36,975 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 707 transitions. [2021-03-25 04:43:36,975 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 04:43:36,975 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 707 transitions. [2021-03-25 04:43:36,977 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 141.4) internal successors, (707), 5 states have internal predecessors, (707), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:43:36,979 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 182.0) internal successors, (1092), 6 states have internal predecessors, (1092), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:43:36,979 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 182.0) internal successors, (1092), 6 states have internal predecessors, (1092), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:43:36,979 INFO L185 Difference]: Start difference. First operand has 49 places, 30 transitions, 221 flow. Second operand 5 states and 707 transitions. [2021-03-25 04:43:36,979 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 36 transitions, 296 flow [2021-03-25 04:43:36,981 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 36 transitions, 245 flow, removed 12 selfloop flow, removed 9 redundant places. [2021-03-25 04:43:36,982 INFO L241 Difference]: Finished difference. Result has 46 places, 36 transitions, 257 flow [2021-03-25 04:43:36,982 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=171, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=257, PETRI_PLACES=46, PETRI_TRANSITIONS=36} [2021-03-25 04:43:36,982 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, -1 predicate places. [2021-03-25 04:43:36,982 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 04:43:36,982 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 46 places, 36 transitions, 257 flow [2021-03-25 04:43:36,982 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 46 places, 36 transitions, 257 flow [2021-03-25 04:43:36,983 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 46 places, 36 transitions, 257 flow [2021-03-25 04:43:36,990 INFO L129 PetriNetUnfolder]: 21/75 cut-off events. [2021-03-25 04:43:36,990 INFO L130 PetriNetUnfolder]: For 145/156 co-relation queries the response was YES. [2021-03-25 04:43:36,991 INFO L84 FinitePrefix]: Finished finitePrefix Result has 261 conditions, 75 events. 21/75 cut-off events. For 145/156 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 227 event pairs, 0 based on Foata normal form. 6/80 useless extension candidates. Maximal degree in co-relation 242. Up to 22 conditions per place. [2021-03-25 04:43:36,991 INFO L142 LiptonReduction]: Number of co-enabled transitions 144 [2021-03-25 04:43:36,993 INFO L154 LiptonReduction]: Checked pairs total: 87 [2021-03-25 04:43:36,993 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 04:43:36,994 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 12 [2021-03-25 04:43:36,994 INFO L480 AbstractCegarLoop]: Abstraction has has 46 places, 36 transitions, 257 flow [2021-03-25 04:43:36,994 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 140.0) internal successors, (560), 4 states have internal predecessors, (560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:43:36,994 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 04:43:36,994 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 04:43:36,995 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-03-25 04:43:36,995 INFO L428 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 04:43:36,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 04:43:36,995 INFO L82 PathProgramCache]: Analyzing trace with hash -840019784, now seen corresponding path program 1 times [2021-03-25 04:43:36,995 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 04:43:36,995 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [769623683] [2021-03-25 04:43:36,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 04:43:37,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 04:43:37,031 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:43:37,032 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 04:43:37,032 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:43:37,032 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:43:37,035 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:43:37,035 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:43:37,038 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 04:43:37,038 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [769623683] [2021-03-25 04:43:37,038 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 04:43:37,038 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-25 04:43:37,038 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [309519949] [2021-03-25 04:43:37,039 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-25 04:43:37,039 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 04:43:37,039 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-25 04:43:37,039 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-25 04:43:37,040 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 152 out of 182 [2021-03-25 04:43:37,040 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 36 transitions, 257 flow. Second operand has 4 states, 4 states have (on average 153.0) internal successors, (612), 4 states have internal predecessors, (612), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:43:37,041 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 04:43:37,041 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 152 of 182 [2021-03-25 04:43:37,041 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 04:43:37,062 INFO L129 PetriNetUnfolder]: 25/88 cut-off events. [2021-03-25 04:43:37,063 INFO L130 PetriNetUnfolder]: For 221/239 co-relation queries the response was YES. [2021-03-25 04:43:37,063 INFO L84 FinitePrefix]: Finished finitePrefix Result has 314 conditions, 88 events. 25/88 cut-off events. For 221/239 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 312 event pairs, 1 based on Foata normal form. 9/95 useless extension candidates. Maximal degree in co-relation 293. Up to 26 conditions per place. [2021-03-25 04:43:37,063 INFO L132 encePairwiseOnDemand]: 179/182 looper letters, 3 selfloop transitions, 1 changer transitions 12/36 dead transitions. [2021-03-25 04:43:37,063 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 36 transitions, 271 flow [2021-03-25 04:43:37,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-25 04:43:37,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-25 04:43:37,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 614 transitions. [2021-03-25 04:43:37,066 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8434065934065934 [2021-03-25 04:43:37,066 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 614 transitions. [2021-03-25 04:43:37,066 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 614 transitions. [2021-03-25 04:43:37,066 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 04:43:37,066 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 614 transitions. [2021-03-25 04:43:37,067 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 153.5) internal successors, (614), 4 states have internal predecessors, (614), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:43:37,070 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 182.0) internal successors, (910), 5 states have internal predecessors, (910), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:43:37,070 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 182.0) internal successors, (910), 5 states have internal predecessors, (910), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:43:37,070 INFO L185 Difference]: Start difference. First operand has 46 places, 36 transitions, 257 flow. Second operand 4 states and 614 transitions. [2021-03-25 04:43:37,070 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 36 transitions, 271 flow [2021-03-25 04:43:37,072 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 36 transitions, 269 flow, removed 1 selfloop flow, removed 0 redundant places. [2021-03-25 04:43:37,072 INFO L241 Difference]: Finished difference. Result has 50 places, 24 transitions, 149 flow [2021-03-25 04:43:37,073 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=255, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=149, PETRI_PLACES=50, PETRI_TRANSITIONS=24} [2021-03-25 04:43:37,073 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 3 predicate places. [2021-03-25 04:43:37,073 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 04:43:37,073 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 50 places, 24 transitions, 149 flow [2021-03-25 04:43:37,073 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 50 places, 24 transitions, 149 flow [2021-03-25 04:43:37,074 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 49 places, 24 transitions, 149 flow [2021-03-25 04:43:37,078 INFO L129 PetriNetUnfolder]: 6/35 cut-off events. [2021-03-25 04:43:37,078 INFO L130 PetriNetUnfolder]: For 88/94 co-relation queries the response was YES. [2021-03-25 04:43:37,078 INFO L84 FinitePrefix]: Finished finitePrefix Result has 133 conditions, 35 events. 6/35 cut-off events. For 88/94 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 54 event pairs, 0 based on Foata normal form. 4/38 useless extension candidates. Maximal degree in co-relation 112. Up to 10 conditions per place. [2021-03-25 04:43:37,078 INFO L142 LiptonReduction]: Number of co-enabled transitions 36 [2021-03-25 04:43:37,737 WARN L205 SmtUtils]: Spent 633.00 ms on a formula simplification. DAG size of input: 218 DAG size of output: 177 [2021-03-25 04:43:38,004 WARN L205 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 175 [2021-03-25 04:43:39,266 WARN L205 SmtUtils]: Spent 1.26 s on a formula simplification. DAG size of input: 302 DAG size of output: 258 [2021-03-25 04:43:39,833 WARN L205 SmtUtils]: Spent 565.00 ms on a formula simplification that was a NOOP. DAG size: 255 [2021-03-25 04:43:39,974 INFO L154 LiptonReduction]: Checked pairs total: 74 [2021-03-25 04:43:39,974 INFO L156 LiptonReduction]: Total number of compositions: 4 [2021-03-25 04:43:39,974 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 2901 [2021-03-25 04:43:39,974 INFO L480 AbstractCegarLoop]: Abstraction has has 46 places, 21 transitions, 148 flow [2021-03-25 04:43:39,975 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 153.0) internal successors, (612), 4 states have internal predecessors, (612), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:43:39,975 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 04:43:39,975 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 04:43:39,975 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-03-25 04:43:39,975 INFO L428 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 04:43:39,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 04:43:39,975 INFO L82 PathProgramCache]: Analyzing trace with hash -262390276, now seen corresponding path program 2 times [2021-03-25 04:43:39,976 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 04:43:39,976 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1323426640] [2021-03-25 04:43:39,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 04:43:40,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-25 04:43:40,009 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-25 04:43:40,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-25 04:43:40,048 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-25 04:43:40,091 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-03-25 04:43:40,091 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-03-25 04:43:40,091 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-03-25 04:43:40,189 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.03 04:43:40 BasicIcfg [2021-03-25 04:43:40,189 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-25 04:43:40,190 INFO L168 Benchmark]: Toolchain (without parser) took 13702.75 ms. Allocated memory was 255.9 MB in the beginning and 562.0 MB in the end (delta: 306.2 MB). Free memory was 235.5 MB in the beginning and 463.8 MB in the end (delta: -228.4 MB). Peak memory consumption was 76.2 MB. Max. memory is 16.0 GB. [2021-03-25 04:43:40,190 INFO L168 Benchmark]: CDTParser took 0.44 ms. Allocated memory is still 255.9 MB. Free memory is still 237.9 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-03-25 04:43:40,191 INFO L168 Benchmark]: CACSL2BoogieTranslator took 539.78 ms. Allocated memory was 255.9 MB in the beginning and 375.4 MB in the end (delta: 119.5 MB). Free memory was 235.0 MB in the beginning and 335.9 MB in the end (delta: -100.9 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.0 GB. [2021-03-25 04:43:40,191 INFO L168 Benchmark]: Boogie Procedure Inliner took 75.19 ms. Allocated memory is still 375.4 MB. Free memory was 335.9 MB in the beginning and 333.5 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-25 04:43:40,191 INFO L168 Benchmark]: Boogie Preprocessor took 54.30 ms. Allocated memory is still 375.4 MB. Free memory was 333.5 MB in the beginning and 331.3 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-25 04:43:40,191 INFO L168 Benchmark]: RCFGBuilder took 1572.21 ms. Allocated memory is still 375.4 MB. Free memory was 331.3 MB in the beginning and 308.2 MB in the end (delta: 23.1 MB). Peak memory consumption was 48.0 MB. Max. memory is 16.0 GB. [2021-03-25 04:43:40,192 INFO L168 Benchmark]: TraceAbstraction took 11456.94 ms. Allocated memory was 375.4 MB in the beginning and 562.0 MB in the end (delta: 186.6 MB). Free memory was 307.1 MB in the beginning and 463.8 MB in the end (delta: -156.7 MB). Peak memory consumption was 29.9 MB. Max. memory is 16.0 GB. [2021-03-25 04:43:40,196 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.44 ms. Allocated memory is still 255.9 MB. Free memory is still 237.9 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 539.78 ms. Allocated memory was 255.9 MB in the beginning and 375.4 MB in the end (delta: 119.5 MB). Free memory was 235.0 MB in the beginning and 335.9 MB in the end (delta: -100.9 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 75.19 ms. Allocated memory is still 375.4 MB. Free memory was 335.9 MB in the beginning and 333.5 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 54.30 ms. Allocated memory is still 375.4 MB. Free memory was 333.5 MB in the beginning and 331.3 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 1572.21 ms. Allocated memory is still 375.4 MB. Free memory was 331.3 MB in the beginning and 308.2 MB in the end (delta: 23.1 MB). Peak memory consumption was 48.0 MB. Max. memory is 16.0 GB. * TraceAbstraction took 11456.94 ms. Allocated memory was 375.4 MB in the beginning and 562.0 MB in the end (delta: 186.6 MB). Free memory was 307.1 MB in the beginning and 463.8 MB in the end (delta: -156.7 MB). Peak memory consumption was 29.9 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2464.5ms, 105 PlacesBefore, 47 PlacesAfterwards, 97 TransitionsBefore, 38 TransitionsAfterwards, 1644 CoEnabledTransitionPairs, 5 FixpointIterations, 29 TrivialSequentialCompositions, 34 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 2 ConcurrentYvCompositions, 1 ChoiceCompositions, 66 TotalNumberOfCompositions, 2433 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1252, positive: 1183, positive conditional: 0, positive unconditional: 1183, negative: 69, negative conditional: 0, negative unconditional: 69, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 757, positive: 736, positive conditional: 0, positive unconditional: 736, negative: 21, negative conditional: 0, negative unconditional: 21, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 757, positive: 736, positive conditional: 0, positive unconditional: 736, negative: 21, negative conditional: 0, negative unconditional: 21, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1252, positive: 447, positive conditional: 0, positive unconditional: 447, negative: 48, negative conditional: 0, negative unconditional: 48, unknown: 757, unknown conditional: 0, unknown unconditional: 757] , Statistics on independence cache: Total cache size (in pairs): 75, Positive cache size: 63, Positive conditional cache size: 0, Positive unconditional cache size: 63, Negative cache size: 12, Negative conditional cache size: 0, Negative unconditional cache size: 12 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1341.3ms, 44 PlacesBefore, 32 PlacesAfterwards, 35 TransitionsBefore, 23 TransitionsAfterwards, 312 CoEnabledTransitionPairs, 4 FixpointIterations, 7 TrivialSequentialCompositions, 5 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 12 TotalNumberOfCompositions, 1182 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 336, positive: 251, positive conditional: 0, positive unconditional: 251, negative: 85, negative conditional: 0, negative unconditional: 85, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 67, positive: 49, positive conditional: 0, positive unconditional: 49, negative: 18, negative conditional: 0, negative unconditional: 18, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 67, positive: 49, positive conditional: 0, positive unconditional: 49, negative: 18, negative conditional: 0, negative unconditional: 18, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 336, positive: 202, positive conditional: 0, positive unconditional: 202, negative: 67, negative conditional: 0, negative unconditional: 67, unknown: 67, unknown conditional: 0, unknown unconditional: 67] , Statistics on independence cache: Total cache size (in pairs): 68, Positive cache size: 50, Positive conditional cache size: 0, Positive unconditional cache size: 50, Negative cache size: 18, Negative conditional cache size: 0, Negative unconditional cache size: 18 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1316.1ms, 38 PlacesBefore, 33 PlacesAfterwards, 27 TransitionsBefore, 25 TransitionsAfterwards, 210 CoEnabledTransitionPairs, 3 FixpointIterations, 2 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 2 TotalNumberOfCompositions, 489 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 135, positive: 102, positive conditional: 0, positive unconditional: 102, negative: 33, negative conditional: 0, negative unconditional: 33, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 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] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: 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] , Cache Queries: [ total: 135, positive: 95, positive conditional: 0, positive unconditional: 95, negative: 32, negative conditional: 0, negative unconditional: 32, unknown: 8, unknown conditional: 0, unknown unconditional: 8] , Statistics on independence cache: Total cache size (in pairs): 76, Positive cache size: 57, Positive conditional cache size: 0, Positive unconditional cache size: 57, Negative cache size: 19, Negative conditional cache size: 0, Negative unconditional cache size: 19 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 27.6ms, 35 PlacesBefore, 35 PlacesAfterwards, 28 TransitionsBefore, 28 TransitionsAfterwards, 226 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 246 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 85, positive: 70, positive conditional: 0, positive unconditional: 70, negative: 15, negative conditional: 0, negative unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 6, positive: 6, positive conditional: 0, positive unconditional: 6, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 6, positive: 6, positive conditional: 0, positive unconditional: 6, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 85, positive: 64, positive conditional: 0, positive unconditional: 64, negative: 15, negative conditional: 0, negative unconditional: 15, unknown: 6, unknown conditional: 0, unknown unconditional: 6] , Statistics on independence cache: Total cache size (in pairs): 82, Positive cache size: 63, Positive conditional cache size: 0, Positive unconditional cache size: 63, Negative cache size: 19, Negative conditional cache size: 0, Negative unconditional cache size: 19 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 22.2ms, 39 PlacesBefore, 39 PlacesAfterwards, 32 TransitionsBefore, 32 TransitionsAfterwards, 256 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 291 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 127, positive: 110, positive conditional: 0, positive unconditional: 110, negative: 17, negative conditional: 0, negative unconditional: 17, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 3, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 3, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 127, positive: 108, positive conditional: 0, positive unconditional: 108, negative: 16, negative conditional: 0, negative unconditional: 16, unknown: 3, unknown conditional: 0, unknown unconditional: 3] , Statistics on independence cache: Total cache size (in pairs): 85, Positive cache size: 65, Positive conditional cache size: 0, Positive unconditional cache size: 65, Negative cache size: 20, Negative conditional cache size: 0, Negative unconditional cache size: 20 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 53.5ms, 46 PlacesBefore, 46 PlacesAfterwards, 39 TransitionsBefore, 38 TransitionsAfterwards, 380 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 1 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 328 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 152, positive: 136, positive conditional: 0, positive unconditional: 136, negative: 16, negative conditional: 0, negative unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 3, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 3, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 152, positive: 133, positive conditional: 0, positive unconditional: 133, negative: 16, negative conditional: 0, negative unconditional: 16, unknown: 3, unknown conditional: 0, unknown unconditional: 3] , Statistics on independence cache: Total cache size (in pairs): 77, Positive cache size: 60, Positive conditional cache size: 0, Positive unconditional cache size: 60, Negative cache size: 17, Negative conditional cache size: 0, Negative unconditional cache size: 17 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 39.1ms, 45 PlacesBefore, 45 PlacesAfterwards, 33 TransitionsBefore, 33 TransitionsAfterwards, 252 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 94 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 45, positive: 39, positive conditional: 0, positive unconditional: 39, negative: 6, negative conditional: 0, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 45, positive: 38, positive conditional: 0, positive unconditional: 38, negative: 6, negative conditional: 0, negative unconditional: 6, unknown: 1, unknown conditional: 0, unknown unconditional: 1] , Statistics on independence cache: Total cache size (in pairs): 78, Positive cache size: 61, Positive conditional cache size: 0, Positive unconditional cache size: 61, Negative cache size: 17, Negative conditional cache size: 0, Negative unconditional cache size: 17 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 33.9ms, 51 PlacesBefore, 51 PlacesAfterwards, 39 TransitionsBefore, 38 TransitionsAfterwards, 290 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 1 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 344 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 148, positive: 128, positive conditional: 0, positive unconditional: 128, negative: 20, negative conditional: 0, negative unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 6, positive: 6, positive conditional: 0, positive unconditional: 6, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 6, positive: 6, positive conditional: 0, positive unconditional: 6, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 148, positive: 122, positive conditional: 0, positive unconditional: 122, negative: 20, negative conditional: 0, negative unconditional: 20, unknown: 6, unknown conditional: 0, unknown unconditional: 6] , Statistics on independence cache: Total cache size (in pairs): 76, Positive cache size: 59, Positive conditional cache size: 0, Positive unconditional cache size: 59, Negative cache size: 17, Negative conditional cache size: 0, Negative unconditional cache size: 17 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 964.4ms, 53 PlacesBefore, 49 PlacesAfterwards, 33 TransitionsBefore, 30 TransitionsAfterwards, 146 CoEnabledTransitionPairs, 3 FixpointIterations, 1 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 1 TrivialYvCompositions, 1 ConcurrentYvCompositions, 0 ChoiceCompositions, 3 TotalNumberOfCompositions, 223 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 117, positive: 93, positive conditional: 0, positive unconditional: 93, negative: 24, negative conditional: 0, negative unconditional: 24, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 7, positive: 7, positive conditional: 0, positive unconditional: 7, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 7, positive: 7, positive conditional: 0, positive unconditional: 7, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 117, positive: 86, positive conditional: 0, positive unconditional: 86, negative: 24, negative conditional: 0, negative unconditional: 24, unknown: 7, unknown conditional: 0, unknown unconditional: 7] , Statistics on independence cache: Total cache size (in pairs): 60, Positive cache size: 46, Positive conditional cache size: 0, Positive unconditional cache size: 46, Negative cache size: 14, Negative conditional cache size: 0, Negative unconditional cache size: 14 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 11.2ms, 46 PlacesBefore, 46 PlacesAfterwards, 36 TransitionsBefore, 36 TransitionsAfterwards, 144 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 87 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 59, positive: 50, positive conditional: 0, positive unconditional: 50, negative: 9, negative conditional: 0, negative unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 59, positive: 50, positive conditional: 0, positive unconditional: 50, negative: 9, negative conditional: 0, negative unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 60, Positive cache size: 46, Positive conditional cache size: 0, Positive unconditional cache size: 46, Negative cache size: 14, Negative conditional cache size: 0, Negative unconditional cache size: 14 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2900.6ms, 50 PlacesBefore, 46 PlacesAfterwards, 24 TransitionsBefore, 21 TransitionsAfterwards, 36 CoEnabledTransitionPairs, 3 FixpointIterations, 2 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 1 ConcurrentYvCompositions, 0 ChoiceCompositions, 4 TotalNumberOfCompositions, 74 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 54, positive: 44, positive conditional: 0, positive unconditional: 44, negative: 10, negative conditional: 0, negative unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.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] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.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] , Cache Queries: [ total: 54, positive: 44, positive conditional: 0, positive unconditional: 44, negative: 9, negative conditional: 0, negative unconditional: 9, unknown: 1, unknown conditional: 0, unknown unconditional: 1] , Statistics on independence cache: Total cache size (in pairs): 27, Positive cache size: 21, Positive conditional cache size: 0, Positive unconditional cache size: 21, Negative cache size: 6, Negative conditional cache size: 0, Negative unconditional cache size: 6 - CounterExampleResult [Line: 18]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L709] 0 int __unbuffered_cnt = 0; [L711] 0 int __unbuffered_p1_EAX = 0; [L713] 0 int __unbuffered_p2_EAX = 0; [L715] 0 int __unbuffered_p2_EBX = 0; [L717] 0 int a = 0; [L718] 0 _Bool main$tmp_guard0; [L719] 0 _Bool main$tmp_guard1; [L721] 0 int x = 0; [L723] 0 int y = 0; [L724] 0 _Bool y$flush_delayed; [L725] 0 int y$mem_tmp; [L726] 0 _Bool y$r_buff0_thd0; [L727] 0 _Bool y$r_buff0_thd1; [L728] 0 _Bool y$r_buff0_thd2; [L729] 0 _Bool y$r_buff0_thd3; [L730] 0 _Bool y$r_buff1_thd0; [L731] 0 _Bool y$r_buff1_thd1; [L732] 0 _Bool y$r_buff1_thd2; [L733] 0 _Bool y$r_buff1_thd3; [L734] 0 _Bool y$read_delayed; [L735] 0 int *y$read_delayed_var; [L736] 0 int y$w_buff0; [L737] 0 _Bool y$w_buff0_used; [L738] 0 int y$w_buff1; [L739] 0 _Bool y$w_buff1_used; [L741] 0 int z = 0; [L742] 0 _Bool weak$$choice0; [L743] 0 _Bool weak$$choice2; [L833] 0 pthread_t t1010; [L834] FCALL, FORK 0 pthread_create(&t1010, ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, a=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=0] [L835] 0 pthread_t t1011; [L836] FCALL, FORK 0 pthread_create(&t1011, ((void *)0), P1, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, a=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=0] [L837] 0 pthread_t t1012; [L838] FCALL, FORK 0 pthread_create(&t1012, ((void *)0), P2, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, a=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=0] [L790] 3 y$w_buff1 = y$w_buff0 [L791] 3 y$w_buff0 = 1 [L792] 3 y$w_buff1_used = y$w_buff0_used [L793] 3 y$w_buff0_used = (_Bool)1 [L18] COND FALSE 3 !(!expression) [L795] 3 y$r_buff1_thd0 = y$r_buff0_thd0 [L796] 3 y$r_buff1_thd1 = y$r_buff0_thd1 [L797] 3 y$r_buff1_thd2 = y$r_buff0_thd2 [L798] 3 y$r_buff1_thd3 = y$r_buff0_thd3 [L799] 3 y$r_buff0_thd3 = (_Bool)1 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, a=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=0] [L802] 3 z = 1 [L805] 3 __unbuffered_p2_EAX = z VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, a=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=1] [L808] 3 __unbuffered_p2_EBX = a VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, a=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=1] [L747] 1 a = 1 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=1] [L750] 1 x = 1 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=1] [L762] 2 x = 2 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=1] [L765] 2 weak$$choice0 = __VERIFIER_nondet_bool() [L766] 2 weak$$choice2 = __VERIFIER_nondet_bool() [L767] 2 y$flush_delayed = weak$$choice2 [L768] 2 y$mem_tmp = y [L769] EXPR 2 !y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y : (y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : y$w_buff1) [L769] 2 y = !y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y : (y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : y$w_buff1) [L770] EXPR 2 weak$$choice2 ? y$w_buff0 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff0 : (y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : y$w_buff0)) [L770] 2 y$w_buff0 = weak$$choice2 ? y$w_buff0 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff0 : (y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : y$w_buff0)) [L771] EXPR 2 weak$$choice2 ? y$w_buff1 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff1 : (y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff1 : y$w_buff1)) [L771] 2 y$w_buff1 = weak$$choice2 ? y$w_buff1 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff1 : (y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff1 : y$w_buff1)) [L772] EXPR 2 weak$$choice2 ? y$w_buff0_used : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff0_used : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$w_buff0_used)) [L772] 2 y$w_buff0_used = weak$$choice2 ? y$w_buff0_used : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff0_used : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$w_buff0_used)) [L773] EXPR 2 weak$$choice2 ? y$w_buff1_used : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff1_used : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : (_Bool)0)) [L773] 2 y$w_buff1_used = weak$$choice2 ? y$w_buff1_used : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff1_used : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : (_Bool)0)) [L774] EXPR 2 weak$$choice2 ? y$r_buff0_thd2 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$r_buff0_thd2 : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$r_buff0_thd2)) [L774] 2 y$r_buff0_thd2 = weak$$choice2 ? y$r_buff0_thd2 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$r_buff0_thd2 : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$r_buff0_thd2)) [L775] EXPR 2 weak$$choice2 ? y$r_buff1_thd2 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$r_buff1_thd2 : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : (_Bool)0)) [L775] 2 y$r_buff1_thd2 = weak$$choice2 ? y$r_buff1_thd2 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$r_buff1_thd2 : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : (_Bool)0)) [L776] 2 __unbuffered_p1_EAX = y [L777] EXPR 2 y$flush_delayed ? y$mem_tmp : y [L777] 2 y = y$flush_delayed ? y$mem_tmp : y [L778] 2 y$flush_delayed = (_Bool)0 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=49, weak$$choice2=255, x=2, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=1] [L811] EXPR 3 y$w_buff0_used && y$r_buff0_thd3 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd3 ? y$w_buff1 : y) [L811] 3 y = y$w_buff0_used && y$r_buff0_thd3 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd3 ? y$w_buff1 : y) [L812] EXPR 3 y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : y$w_buff0_used [L812] 3 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : y$w_buff0_used [L813] EXPR 3 y$w_buff0_used && y$r_buff0_thd3 || y$w_buff1_used && y$r_buff1_thd3 ? (_Bool)0 : y$w_buff1_used [L813] 3 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd3 || y$w_buff1_used && y$r_buff1_thd3 ? (_Bool)0 : y$w_buff1_used [L814] EXPR 3 y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : y$r_buff0_thd3 [L814] 3 y$r_buff0_thd3 = y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : y$r_buff0_thd3 [L815] EXPR 3 y$w_buff0_used && y$r_buff0_thd3 || y$w_buff1_used && y$r_buff1_thd3 ? (_Bool)0 : y$r_buff1_thd3 [L815] 3 y$r_buff1_thd3 = y$w_buff0_used && y$r_buff0_thd3 || y$w_buff1_used && y$r_buff1_thd3 ? (_Bool)0 : y$r_buff1_thd3 [L755] 1 __unbuffered_cnt = __unbuffered_cnt + 1 [L757] 1 return 0; [L783] 2 __unbuffered_cnt = __unbuffered_cnt + 1 [L785] 2 return 0; [L818] 3 __unbuffered_cnt = __unbuffered_cnt + 1 [L820] 3 return 0; [L840] 0 main$tmp_guard0 = __unbuffered_cnt == 3 [L3] COND FALSE 0 !(!cond) [L844] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y) [L844] EXPR 0 y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y [L844] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y) [L844] 0 y = y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y) [L845] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used [L845] 0 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used [L846] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$w_buff1_used [L846] 0 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$w_buff1_used [L847] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0 [L847] 0 y$r_buff0_thd0 = y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0 [L848] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$r_buff1_thd0 [L848] 0 y$r_buff1_thd0 = y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$r_buff1_thd0 [L851] 0 main$tmp_guard1 = !(x == 2 && __unbuffered_p1_EAX == 0 && __unbuffered_p2_EAX == 1 && __unbuffered_p2_EBX == 0) [L18] COND TRUE 0 !expression [L18] 0 reach_error() VAL [\result={0:0}, \result={0:0}, __unbuffered_cnt=3, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=49, weak$$choice2=255, x=2, y=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 99 locations, 2 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 4.5ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: UNSAFE, OverallTime: 11233.1ms, OverallIterations: 11, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 791.4ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 2528.8ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 61 SDtfs, 29 SDslu, 33 SDs, 0 SdLazy, 138 SolverSat, 35 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 154.5ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 36 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 140.5ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=288occurred in iteration=7, InterpolantAutomatonStates: 46, 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: 40.0ms SsaConstructionTime, 312.3ms SatisfiabilityAnalysisTime, 564.6ms InterpolantComputationTime, 172 NumberOfCodeBlocks, 172 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 144 ConstructedInterpolants, 0 QuantifiedInterpolants, 810 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 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...