/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/mix047_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-d5b4239aa45c8d22a30959944f2ef622f7386a6d-d5b4239 [2021-03-25 04:47:24,995 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-25 04:47:24,996 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-25 04:47:25,031 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-03-25 04:47:25,032 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-03-25 04:47:25,033 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-03-25 04:47:25,034 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-03-25 04:47:25,036 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-03-25 04:47:25,037 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-03-25 04:47:25,038 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-03-25 04:47:25,039 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-03-25 04:47:25,040 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-03-25 04:47:25,040 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-25 04:47:25,041 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-25 04:47:25,042 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-25 04:47:25,042 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-25 04:47:25,043 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-25 04:47:25,044 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-25 04:47:25,045 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-25 04:47:25,047 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-25 04:47:25,048 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-25 04:47:25,049 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-25 04:47:25,050 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-25 04:47:25,050 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-25 04:47:25,053 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-03-25 04:47:25,059 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-25 04:47:25,059 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-25 04:47:25,060 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-25 04:47:25,065 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 04:47:25,096 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-25 04:47:25,097 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-25 04:47:25,100 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-25 04:47:25,100 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-25 04:47:25,100 INFO L138 SettingsManager]: * Use SBE=true [2021-03-25 04:47:25,100 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-25 04:47:25,100 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-25 04:47:25,101 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-25 04:47:25,101 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-25 04:47:25,101 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-25 04:47:25,102 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-25 04:47:25,102 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-25 04:47:25,102 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-25 04:47:25,102 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-25 04:47:25,102 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-25 04:47:25,102 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-25 04:47:25,102 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-25 04:47:25,102 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-25 04:47:25,103 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-25 04:47:25,103 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-25 04:47:25,103 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-25 04:47:25,103 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-25 04:47:25,103 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-25 04:47:25,103 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-25 04:47:25,103 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-25 04:47:25,103 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-25 04:47:25,103 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-25 04:47:25,104 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2021-03-25 04:47:25,104 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-03-25 04:47:25,104 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-03-25 04:47:25,104 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-25 04:47:25,419 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-25 04:47:25,445 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-25 04:47:25,448 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-25 04:47:25,449 INFO L271 PluginConnector]: Initializing CDTParser... [2021-03-25 04:47:25,450 INFO L275 PluginConnector]: CDTParser initialized [2021-03-25 04:47:25,450 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/mix047_tso.opt.i [2021-03-25 04:47:25,503 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7c16323ed/202daed4869047339cb70bd8420dd773/FLAG8eb3bfcd6 [2021-03-25 04:47:26,087 INFO L306 CDTParser]: Found 1 translation units. [2021-03-25 04:47:26,087 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix047_tso.opt.i [2021-03-25 04:47:26,104 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7c16323ed/202daed4869047339cb70bd8420dd773/FLAG8eb3bfcd6 [2021-03-25 04:47:26,486 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7c16323ed/202daed4869047339cb70bd8420dd773 [2021-03-25 04:47:26,488 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-25 04:47:26,489 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-03-25 04:47:26,499 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-03-25 04:47:26,499 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-03-25 04:47:26,502 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-03-25 04:47:26,503 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.03 04:47:26" (1/1) ... [2021-03-25 04:47:26,504 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@28b2cab2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 04:47:26, skipping insertion in model container [2021-03-25 04:47:26,504 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.03 04:47:26" (1/1) ... [2021-03-25 04:47:26,510 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-03-25 04:47:26,555 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-03-25 04:47:26,712 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/mix047_tso.opt.i[948,961] [2021-03-25 04:47:26,936 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-25 04:47:26,945 INFO L203 MainTranslator]: Completed pre-run [2021-03-25 04:47:26,955 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/mix047_tso.opt.i[948,961] [2021-03-25 04:47:27,010 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-25 04:47:27,082 INFO L208 MainTranslator]: Completed translation [2021-03-25 04:47:27,083 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 04:47:27 WrapperNode [2021-03-25 04:47:27,084 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-03-25 04:47:27,085 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-25 04:47:27,085 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-25 04:47:27,086 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-25 04:47:27,091 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 04:47:27" (1/1) ... [2021-03-25 04:47:27,122 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 04:47:27" (1/1) ... [2021-03-25 04:47:27,161 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-25 04:47:27,162 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-25 04:47:27,162 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-25 04:47:27,162 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-25 04:47:27,169 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 04:47:27" (1/1) ... [2021-03-25 04:47:27,170 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 04:47:27" (1/1) ... [2021-03-25 04:47:27,177 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 04:47:27" (1/1) ... [2021-03-25 04:47:27,178 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 04:47:27" (1/1) ... [2021-03-25 04:47:27,185 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 04:47:27" (1/1) ... [2021-03-25 04:47:27,201 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 04:47:27" (1/1) ... [2021-03-25 04:47:27,203 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 04:47:27" (1/1) ... [2021-03-25 04:47:27,206 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-25 04:47:27,207 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-25 04:47:27,207 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-25 04:47:27,207 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-25 04:47:27,208 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 04:47:27" (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 04:47:27,300 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-03-25 04:47:27,301 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-03-25 04:47:27,301 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-03-25 04:47:27,301 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-03-25 04:47:27,302 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-03-25 04:47:27,302 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-03-25 04:47:27,302 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-03-25 04:47:27,303 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-03-25 04:47:27,303 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-03-25 04:47:27,303 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-03-25 04:47:27,303 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2021-03-25 04:47:27,303 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2021-03-25 04:47:27,303 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-03-25 04:47:27,303 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-03-25 04:47:27,303 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-25 04:47:27,304 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-25 04:47:27,305 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 04:47:29,058 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-25 04:47:29,059 INFO L299 CfgBuilder]: Removed 10 assume(true) statements. [2021-03-25 04:47:29,061 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.03 04:47:29 BoogieIcfgContainer [2021-03-25 04:47:29,061 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-25 04:47:29,062 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-25 04:47:29,062 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-25 04:47:29,064 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-25 04:47:29,064 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.03 04:47:26" (1/3) ... [2021-03-25 04:47:29,065 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@134c2384 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.03 04:47:29, skipping insertion in model container [2021-03-25 04:47:29,065 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 04:47:27" (2/3) ... [2021-03-25 04:47:29,065 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@134c2384 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.03 04:47:29, skipping insertion in model container [2021-03-25 04:47:29,065 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.03 04:47:29" (3/3) ... [2021-03-25 04:47:29,066 INFO L111 eAbstractionObserver]: Analyzing ICFG mix047_tso.opt.i [2021-03-25 04:47:29,072 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-25 04:47:29,075 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2021-03-25 04:47:29,076 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-25 04:47:29,103 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:47:29,104 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:47:29,104 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:47:29,104 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:47:29,104 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:47:29,104 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:47:29,104 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:47:29,105 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:47:29,105 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:47:29,105 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:47:29,105 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:47:29,106 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:47:29,106 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:47:29,106 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:47:29,106 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:47:29,106 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:47:29,106 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:47:29,107 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:47:29,107 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:47:29,107 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:47:29,107 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:47:29,107 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:47:29,107 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:47:29,107 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:47:29,108 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:47:29,108 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:47:29,108 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:47:29,108 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:47:29,108 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:47:29,108 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:47:29,109 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:47:29,109 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:47:29,109 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:47:29,109 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:47:29,109 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:47:29,109 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:47:29,109 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:47:29,110 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:47:29,110 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:47:29,110 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:47:29,110 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:47:29,110 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:47:29,110 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:47:29,111 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:47:29,111 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:47:29,111 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:47:29,111 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:47:29,111 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:47:29,111 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:47:29,112 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:47:29,112 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:47:29,112 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:47:29,112 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:47:29,112 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:47:29,112 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:47:29,113 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:47:29,113 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:47:29,113 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:47:29,113 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork3___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:47:29,113 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:47:29,113 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork3___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:47:29,113 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:47:29,114 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork3___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:47:29,114 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:47:29,114 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork3___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:47:29,114 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:47:29,114 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:47:29,114 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:47:29,114 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:47:29,115 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:47:29,115 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:47:29,115 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:47:29,115 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:47:29,115 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:47:29,115 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:47:29,116 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:47:29,116 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:47:29,116 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:47:29,116 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:47:29,116 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:47:29,116 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:47:29,117 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:47:29,117 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:47:29,117 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:47:29,118 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:47:29,119 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:47:29,119 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:47:29,119 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:47:29,120 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:47:29,120 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:47:29,121 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:47:29,121 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:47:29,122 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:47:29,122 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:47:29,122 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:47:29,122 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:47:29,122 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:47:29,123 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:47:29,123 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:47:29,123 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:47:29,123 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:47:29,123 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:47:29,125 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork3___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:47:29,125 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:47:29,125 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:47:29,125 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:47:29,125 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:47:29,125 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:47:29,126 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:47:29,126 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:47:29,126 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:47:29,126 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:47:29,126 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:47:29,126 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:47:29,127 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-25 04:47:29,142 INFO L253 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2021-03-25 04:47:29,159 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-25 04:47:29,159 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-25 04:47:29,159 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-25 04:47:29,159 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-25 04:47:29,160 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-25 04:47:29,160 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-25 04:47:29,160 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-25 04:47:29,160 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-25 04:47:29,169 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 127 places, 116 transitions, 252 flow [2021-03-25 04:47:29,205 INFO L129 PetriNetUnfolder]: 2/112 cut-off events. [2021-03-25 04:47:29,205 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 04:47:29,208 INFO L84 FinitePrefix]: Finished finitePrefix Result has 125 conditions, 112 events. 2/112 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 85 event pairs, 0 based on Foata normal form. 0/108 useless extension candidates. Maximal degree in co-relation 76. Up to 2 conditions per place. [2021-03-25 04:47:29,209 INFO L82 GeneralOperation]: Start removeDead. Operand has 127 places, 116 transitions, 252 flow [2021-03-25 04:47:29,213 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 123 places, 112 transitions, 236 flow [2021-03-25 04:47:29,214 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 04:47:29,221 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 123 places, 112 transitions, 236 flow [2021-03-25 04:47:29,223 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 123 places, 112 transitions, 236 flow [2021-03-25 04:47:29,225 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 123 places, 112 transitions, 236 flow [2021-03-25 04:47:29,242 INFO L129 PetriNetUnfolder]: 2/112 cut-off events. [2021-03-25 04:47:29,243 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 04:47:29,243 INFO L84 FinitePrefix]: Finished finitePrefix Result has 125 conditions, 112 events. 2/112 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 92 event pairs, 0 based on Foata normal form. 0/108 useless extension candidates. Maximal degree in co-relation 76. Up to 2 conditions per place. [2021-03-25 04:47:29,246 INFO L142 LiptonReduction]: Number of co-enabled transitions 2598 [2021-03-25 04:47:30,771 WARN L205 SmtUtils]: Spent 684.00 ms on a formula simplification. DAG size of input: 230 DAG size of output: 190 [2021-03-25 04:47:31,348 WARN L205 SmtUtils]: Spent 575.00 ms on a formula simplification. DAG size of input: 188 DAG size of output: 187 [2021-03-25 04:47:32,747 WARN L205 SmtUtils]: Spent 1.38 s on a formula simplification. DAG size of input: 314 DAG size of output: 269 [2021-03-25 04:47:33,316 WARN L205 SmtUtils]: Spent 566.00 ms on a formula simplification that was a NOOP. DAG size: 266 [2021-03-25 04:47:33,599 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 58 [2021-03-25 04:47:34,055 WARN L205 SmtUtils]: Spent 363.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 81 [2021-03-25 04:47:34,185 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2021-03-25 04:47:35,116 WARN L205 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2021-03-25 04:47:35,390 WARN L205 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2021-03-25 04:47:36,071 WARN L205 SmtUtils]: Spent 678.00 ms on a formula simplification that was a NOOP. DAG size: 268 [2021-03-25 04:47:36,677 WARN L205 SmtUtils]: Spent 604.00 ms on a formula simplification that was a NOOP. DAG size: 268 [2021-03-25 04:47:37,245 INFO L154 LiptonReduction]: Checked pairs total: 4306 [2021-03-25 04:47:37,246 INFO L156 LiptonReduction]: Total number of compositions: 75 [2021-03-25 04:47:37,248 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 8035 [2021-03-25 04:47:37,261 INFO L129 PetriNetUnfolder]: 0/27 cut-off events. [2021-03-25 04:47:37,262 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 04:47:37,262 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 04:47:37,262 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 04:47:37,263 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 04:47:37,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 04:47:37,267 INFO L82 PathProgramCache]: Analyzing trace with hash 316096465, now seen corresponding path program 1 times [2021-03-25 04:47:37,273 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 04:47:37,274 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [615165023] [2021-03-25 04:47:37,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 04:47:37,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 04:47:37,472 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:47:37,473 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 04:47:37,474 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:47:37,474 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:47:37,490 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 04:47:37,490 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [615165023] [2021-03-25 04:47:37,491 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 04:47:37,491 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-25 04:47:37,491 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [817584003] [2021-03-25 04:47:37,498 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-25 04:47:37,498 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 04:47:37,508 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-25 04:47:37,509 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-25 04:47:37,510 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 169 out of 191 [2021-03-25 04:47:37,513 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 45 transitions, 102 flow. Second operand has 3 states, 3 states have (on average 169.66666666666666) internal successors, (509), 3 states have internal predecessors, (509), 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 04:47:37,513 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 04:47:37,513 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 169 of 191 [2021-03-25 04:47:37,514 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 04:47:37,600 INFO L129 PetriNetUnfolder]: 23/109 cut-off events. [2021-03-25 04:47:37,600 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 04:47:37,602 INFO L84 FinitePrefix]: Finished finitePrefix Result has 170 conditions, 109 events. 23/109 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 410 event pairs, 3 based on Foata normal form. 6/108 useless extension candidates. Maximal degree in co-relation 150. Up to 37 conditions per place. [2021-03-25 04:47:37,603 INFO L132 encePairwiseOnDemand]: 187/191 looper letters, 7 selfloop transitions, 2 changer transitions 6/46 dead transitions. [2021-03-25 04:47:37,603 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 46 transitions, 126 flow [2021-03-25 04:47:37,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-25 04:47:37,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-25 04:47:37,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 521 transitions. [2021-03-25 04:47:37,621 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9092495636998255 [2021-03-25 04:47:37,622 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 521 transitions. [2021-03-25 04:47:37,622 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 521 transitions. [2021-03-25 04:47:37,626 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 04:47:37,628 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 521 transitions. [2021-03-25 04:47:37,632 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 173.66666666666666) internal successors, (521), 3 states have internal predecessors, (521), 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 04:47:37,640 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 191.0) internal successors, (764), 4 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 04:47:37,640 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 191.0) internal successors, (764), 4 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 04:47:37,642 INFO L185 Difference]: Start difference. First operand has 57 places, 45 transitions, 102 flow. Second operand 3 states and 521 transitions. [2021-03-25 04:47:37,643 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 46 transitions, 126 flow [2021-03-25 04:47:37,645 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 46 transitions, 122 flow, removed 0 selfloop flow, removed 4 redundant places. [2021-03-25 04:47:37,646 INFO L241 Difference]: Finished difference. Result has 53 places, 37 transitions, 86 flow [2021-03-25 04:47:37,649 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=191, PETRI_DIFFERENCE_MINUEND_FLOW=92, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=86, PETRI_PLACES=53, PETRI_TRANSITIONS=37} [2021-03-25 04:47:37,650 INFO L343 CegarLoopForPetriNet]: 57 programPoint places, -4 predicate places. [2021-03-25 04:47:37,650 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 04:47:37,650 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 53 places, 37 transitions, 86 flow [2021-03-25 04:47:37,651 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 53 places, 37 transitions, 86 flow [2021-03-25 04:47:37,652 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 48 places, 37 transitions, 86 flow [2021-03-25 04:47:37,661 INFO L129 PetriNetUnfolder]: 0/37 cut-off events. [2021-03-25 04:47:37,661 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 04:47:37,661 INFO L84 FinitePrefix]: Finished finitePrefix Result has 49 conditions, 37 events. 0/37 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 41 event pairs, 0 based on Foata normal form. 0/36 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2021-03-25 04:47:37,662 INFO L142 LiptonReduction]: Number of co-enabled transitions 392 [2021-03-25 04:47:38,056 WARN L205 SmtUtils]: Spent 320.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2021-03-25 04:47:38,390 WARN L205 SmtUtils]: Spent 332.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2021-03-25 04:47:39,011 WARN L205 SmtUtils]: Spent 615.00 ms on a formula simplification that was a NOOP. DAG size: 269 [2021-03-25 04:47:39,624 WARN L205 SmtUtils]: Spent 607.00 ms on a formula simplification that was a NOOP. DAG size: 269 [2021-03-25 04:47:40,786 WARN L205 SmtUtils]: Spent 330.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 122 [2021-03-25 04:47:40,966 WARN L205 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2021-03-25 04:47:41,276 WARN L205 SmtUtils]: Spent 308.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 122 [2021-03-25 04:47:41,420 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2021-03-25 04:47:41,424 INFO L154 LiptonReduction]: Checked pairs total: 2232 [2021-03-25 04:47:41,424 INFO L156 LiptonReduction]: Total number of compositions: 10 [2021-03-25 04:47:41,424 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 3774 [2021-03-25 04:47:41,425 INFO L480 AbstractCegarLoop]: Abstraction has has 38 places, 27 transitions, 66 flow [2021-03-25 04:47:41,425 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 169.66666666666666) internal successors, (509), 3 states have internal predecessors, (509), 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 04:47:41,426 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 04:47:41,426 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, 1] [2021-03-25 04:47:41,426 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-25 04:47:41,426 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 04:47:41,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 04:47:41,427 INFO L82 PathProgramCache]: Analyzing trace with hash -2031321782, now seen corresponding path program 1 times [2021-03-25 04:47:41,427 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 04:47:41,427 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1162783498] [2021-03-25 04:47:41,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 04:47:41,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 04:47:41,545 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:47:41,545 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:47:41,548 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:47:41,549 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:47:41,552 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 04:47:41,557 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1162783498] [2021-03-25 04:47:41,557 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 04:47:41,557 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-25 04:47:41,557 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [820687329] [2021-03-25 04:47:41,558 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-25 04:47:41,558 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 04:47:41,559 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-25 04:47:41,559 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-25 04:47:41,560 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 174 out of 201 [2021-03-25 04:47:41,561 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 27 transitions, 66 flow. Second operand has 4 states, 4 states have (on average 174.75) internal successors, (699), 4 states have internal predecessors, (699), 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 04:47:41,561 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 04:47:41,561 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 174 of 201 [2021-03-25 04:47:41,561 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 04:47:41,581 INFO L129 PetriNetUnfolder]: 3/39 cut-off events. [2021-03-25 04:47:41,581 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 04:47:41,581 INFO L84 FinitePrefix]: Finished finitePrefix Result has 62 conditions, 39 events. 3/39 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 82 event pairs, 1 based on Foata normal form. 1/37 useless extension candidates. Maximal degree in co-relation 53. Up to 10 conditions per place. [2021-03-25 04:47:41,581 INFO L132 encePairwiseOnDemand]: 197/201 looper letters, 3 selfloop transitions, 3 changer transitions 0/29 dead transitions. [2021-03-25 04:47:41,581 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 29 transitions, 82 flow [2021-03-25 04:47:41,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-25 04:47:41,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-25 04:47:41,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 529 transitions. [2021-03-25 04:47:41,586 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8772802653399668 [2021-03-25 04:47:41,586 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 529 transitions. [2021-03-25 04:47:41,586 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 529 transitions. [2021-03-25 04:47:41,587 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 04:47:41,587 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 529 transitions. [2021-03-25 04:47:41,588 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 176.33333333333334) internal successors, (529), 3 states have internal predecessors, (529), 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 04:47:41,590 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 201.0) internal successors, (804), 4 states have internal predecessors, (804), 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 04:47:41,590 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 201.0) internal successors, (804), 4 states have internal predecessors, (804), 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 04:47:41,590 INFO L185 Difference]: Start difference. First operand has 38 places, 27 transitions, 66 flow. Second operand 3 states and 529 transitions. [2021-03-25 04:47:41,590 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 29 transitions, 82 flow [2021-03-25 04:47:41,591 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 29 transitions, 78 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-03-25 04:47:41,592 INFO L241 Difference]: Finished difference. Result has 39 places, 29 transitions, 81 flow [2021-03-25 04:47:41,592 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=201, PETRI_DIFFERENCE_MINUEND_FLOW=62, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=81, PETRI_PLACES=39, PETRI_TRANSITIONS=29} [2021-03-25 04:47:41,593 INFO L343 CegarLoopForPetriNet]: 57 programPoint places, -18 predicate places. [2021-03-25 04:47:41,593 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 04:47:41,593 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 39 places, 29 transitions, 81 flow [2021-03-25 04:47:41,593 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 39 places, 29 transitions, 81 flow [2021-03-25 04:47:41,593 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 39 places, 29 transitions, 81 flow [2021-03-25 04:47:41,598 INFO L129 PetriNetUnfolder]: 3/35 cut-off events. [2021-03-25 04:47:41,598 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 04:47:41,598 INFO L84 FinitePrefix]: Finished finitePrefix Result has 58 conditions, 35 events. 3/35 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 74 event pairs, 1 based on Foata normal form. 0/32 useless extension candidates. Maximal degree in co-relation 50. Up to 10 conditions per place. [2021-03-25 04:47:41,599 INFO L142 LiptonReduction]: Number of co-enabled transitions 408 [2021-03-25 04:47:41,601 INFO L154 LiptonReduction]: Checked pairs total: 397 [2021-03-25 04:47:41,601 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 04:47:41,601 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 8 [2021-03-25 04:47:41,602 INFO L480 AbstractCegarLoop]: Abstraction has has 39 places, 29 transitions, 81 flow [2021-03-25 04:47:41,602 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 174.75) internal successors, (699), 4 states have internal predecessors, (699), 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 04:47:41,602 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 04:47:41,603 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 04:47:41,603 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-25 04:47:41,603 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 04:47:41,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 04:47:41,603 INFO L82 PathProgramCache]: Analyzing trace with hash 1632435728, now seen corresponding path program 1 times [2021-03-25 04:47:41,603 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 04:47:41,604 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1818194728] [2021-03-25 04:47:41,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 04:47:41,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 04:47:41,739 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:47:41,740 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:47:41,743 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 04:47:41,743 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1818194728] [2021-03-25 04:47:41,743 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 04:47:41,744 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-03-25 04:47:41,744 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1012068438] [2021-03-25 04:47:41,744 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-25 04:47:41,745 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 04:47:41,745 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-25 04:47:41,745 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-25 04:47:41,747 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 179 out of 201 [2021-03-25 04:47:41,747 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 29 transitions, 81 flow. Second operand has 3 states, 3 states have (on average 179.66666666666666) internal successors, (539), 3 states have internal predecessors, (539), 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 04:47:41,748 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 04:47:41,748 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 179 of 201 [2021-03-25 04:47:41,748 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 04:47:41,762 INFO L129 PetriNetUnfolder]: 3/39 cut-off events. [2021-03-25 04:47:41,762 INFO L130 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2021-03-25 04:47:41,762 INFO L84 FinitePrefix]: Finished finitePrefix Result has 68 conditions, 39 events. 3/39 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 78 event pairs, 1 based on Foata normal form. 1/37 useless extension candidates. Maximal degree in co-relation 58. Up to 10 conditions per place. [2021-03-25 04:47:41,763 INFO L132 encePairwiseOnDemand]: 198/201 looper letters, 1 selfloop transitions, 2 changer transitions 0/29 dead transitions. [2021-03-25 04:47:41,763 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 29 transitions, 87 flow [2021-03-25 04:47:41,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-25 04:47:41,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-25 04:47:41,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 541 transitions. [2021-03-25 04:47:41,766 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8971807628524047 [2021-03-25 04:47:41,768 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 541 transitions. [2021-03-25 04:47:41,768 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 541 transitions. [2021-03-25 04:47:41,769 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 04:47:41,769 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 541 transitions. [2021-03-25 04:47:41,770 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 180.33333333333334) internal successors, (541), 3 states have internal predecessors, (541), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:47:41,771 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 201.0) internal successors, (804), 4 states have internal predecessors, (804), 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 04:47:41,772 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 201.0) internal successors, (804), 4 states have internal predecessors, (804), 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 04:47:41,772 INFO L185 Difference]: Start difference. First operand has 39 places, 29 transitions, 81 flow. Second operand 3 states and 541 transitions. [2021-03-25 04:47:41,772 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 29 transitions, 87 flow [2021-03-25 04:47:41,772 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 29 transitions, 84 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-25 04:47:41,773 INFO L241 Difference]: Finished difference. Result has 41 places, 29 transitions, 86 flow [2021-03-25 04:47:41,773 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=201, PETRI_DIFFERENCE_MINUEND_FLOW=78, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=86, PETRI_PLACES=41, PETRI_TRANSITIONS=29} [2021-03-25 04:47:41,773 INFO L343 CegarLoopForPetriNet]: 57 programPoint places, -16 predicate places. [2021-03-25 04:47:41,773 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 04:47:41,774 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 41 places, 29 transitions, 86 flow [2021-03-25 04:47:41,774 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 41 places, 29 transitions, 86 flow [2021-03-25 04:47:41,775 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 41 places, 29 transitions, 86 flow [2021-03-25 04:47:41,780 INFO L129 PetriNetUnfolder]: 3/35 cut-off events. [2021-03-25 04:47:41,780 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2021-03-25 04:47:41,781 INFO L84 FinitePrefix]: Finished finitePrefix Result has 63 conditions, 35 events. 3/35 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 77 event pairs, 1 based on Foata normal form. 0/32 useless extension candidates. Maximal degree in co-relation 53. Up to 10 conditions per place. [2021-03-25 04:47:41,782 INFO L142 LiptonReduction]: Number of co-enabled transitions 404 [2021-03-25 04:47:41,945 INFO L154 LiptonReduction]: Checked pairs total: 698 [2021-03-25 04:47:41,946 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 04:47:41,946 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 173 [2021-03-25 04:47:41,947 INFO L480 AbstractCegarLoop]: Abstraction has has 40 places, 28 transitions, 84 flow [2021-03-25 04:47:41,947 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 179.66666666666666) internal successors, (539), 3 states have internal predecessors, (539), 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 04:47:41,947 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 04:47:41,947 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 04:47:41,947 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-03-25 04:47:41,948 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 04:47:41,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 04:47:41,948 INFO L82 PathProgramCache]: Analyzing trace with hash -1932846463, now seen corresponding path program 1 times [2021-03-25 04:47:41,948 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 04:47:41,948 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1903598849] [2021-03-25 04:47:41,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 04:47:41,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 04:47:42,032 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:47:42,033 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:47:42,036 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 04:47:42,036 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1903598849] [2021-03-25 04:47:42,036 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 04:47:42,036 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-03-25 04:47:42,036 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [436517340] [2021-03-25 04:47:42,036 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-25 04:47:42,037 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 04:47:42,037 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-25 04:47:42,037 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-25 04:47:42,038 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 179 out of 202 [2021-03-25 04:47:42,039 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 28 transitions, 84 flow. Second operand has 3 states, 3 states have (on average 179.66666666666666) internal successors, (539), 3 states have internal predecessors, (539), 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 04:47:42,039 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 04:47:42,039 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 179 of 202 [2021-03-25 04:47:42,039 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 04:47:42,054 INFO L129 PetriNetUnfolder]: 10/59 cut-off events. [2021-03-25 04:47:42,055 INFO L130 PetriNetUnfolder]: For 24/33 co-relation queries the response was YES. [2021-03-25 04:47:42,055 INFO L84 FinitePrefix]: Finished finitePrefix Result has 116 conditions, 59 events. 10/59 cut-off events. For 24/33 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 174 event pairs, 3 based on Foata normal form. 1/53 useless extension candidates. Maximal degree in co-relation 104. Up to 19 conditions per place. [2021-03-25 04:47:42,056 INFO L132 encePairwiseOnDemand]: 198/202 looper letters, 3 selfloop transitions, 3 changer transitions 0/30 dead transitions. [2021-03-25 04:47:42,056 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 30 transitions, 100 flow [2021-03-25 04:47:42,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-25 04:47:42,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-25 04:47:42,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 544 transitions. [2021-03-25 04:47:42,059 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8976897689768977 [2021-03-25 04:47:42,059 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 544 transitions. [2021-03-25 04:47:42,059 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 544 transitions. [2021-03-25 04:47:42,059 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 04:47:42,060 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 544 transitions. [2021-03-25 04:47:42,061 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 181.33333333333334) internal successors, (544), 3 states have internal predecessors, (544), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:47:42,062 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 202.0) internal successors, (808), 4 states have internal predecessors, (808), 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 04:47:42,062 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 202.0) internal successors, (808), 4 states have internal predecessors, (808), 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 04:47:42,062 INFO L185 Difference]: Start difference. First operand has 40 places, 28 transitions, 84 flow. Second operand 3 states and 544 transitions. [2021-03-25 04:47:42,063 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 30 transitions, 100 flow [2021-03-25 04:47:42,063 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 30 transitions, 96 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-03-25 04:47:42,064 INFO L241 Difference]: Finished difference. Result has 41 places, 30 transitions, 99 flow [2021-03-25 04:47:42,064 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=202, PETRI_DIFFERENCE_MINUEND_FLOW=80, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=99, PETRI_PLACES=41, PETRI_TRANSITIONS=30} [2021-03-25 04:47:42,065 INFO L343 CegarLoopForPetriNet]: 57 programPoint places, -16 predicate places. [2021-03-25 04:47:42,065 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 04:47:42,065 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 41 places, 30 transitions, 99 flow [2021-03-25 04:47:42,065 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 41 places, 30 transitions, 99 flow [2021-03-25 04:47:42,066 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 41 places, 30 transitions, 99 flow [2021-03-25 04:47:42,072 INFO L129 PetriNetUnfolder]: 7/46 cut-off events. [2021-03-25 04:47:42,072 INFO L130 PetriNetUnfolder]: For 21/23 co-relation queries the response was YES. [2021-03-25 04:47:42,073 INFO L84 FinitePrefix]: Finished finitePrefix Result has 98 conditions, 46 events. 7/46 cut-off events. For 21/23 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 135 event pairs, 3 based on Foata normal form. 0/39 useless extension candidates. Maximal degree in co-relation 87. Up to 15 conditions per place. [2021-03-25 04:47:42,074 INFO L142 LiptonReduction]: Number of co-enabled transitions 428 [2021-03-25 04:47:42,079 INFO L154 LiptonReduction]: Checked pairs total: 257 [2021-03-25 04:47:42,079 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 04:47:42,079 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 14 [2021-03-25 04:47:42,080 INFO L480 AbstractCegarLoop]: Abstraction has has 41 places, 30 transitions, 99 flow [2021-03-25 04:47:42,080 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 179.66666666666666) internal successors, (539), 3 states have internal predecessors, (539), 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 04:47:42,080 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 04:47:42,080 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 04:47:42,080 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-03-25 04:47:42,080 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 04:47:42,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 04:47:42,081 INFO L82 PathProgramCache]: Analyzing trace with hash 1669921867, now seen corresponding path program 1 times [2021-03-25 04:47:42,081 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 04:47:42,082 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1096276905] [2021-03-25 04:47:42,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 04:47:42,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 04:47:42,186 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:47:42,187 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 04:47:42,188 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:47:42,188 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:47:42,190 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 04:47:42,191 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1096276905] [2021-03-25 04:47:42,191 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 04:47:42,191 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-25 04:47:42,191 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1631900478] [2021-03-25 04:47:42,191 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-25 04:47:42,191 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 04:47:42,192 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-25 04:47:42,192 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-25 04:47:42,193 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 179 out of 202 [2021-03-25 04:47:42,193 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 30 transitions, 99 flow. Second operand has 3 states, 3 states have (on average 180.0) internal successors, (540), 3 states have internal predecessors, (540), 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 04:47:42,193 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 04:47:42,193 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 179 of 202 [2021-03-25 04:47:42,193 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 04:47:42,216 INFO L129 PetriNetUnfolder]: 4/53 cut-off events. [2021-03-25 04:47:42,216 INFO L130 PetriNetUnfolder]: For 50/83 co-relation queries the response was YES. [2021-03-25 04:47:42,216 INFO L84 FinitePrefix]: Finished finitePrefix Result has 118 conditions, 53 events. 4/53 cut-off events. For 50/83 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 187 event pairs, 1 based on Foata normal form. 2/50 useless extension candidates. Maximal degree in co-relation 105. Up to 15 conditions per place. [2021-03-25 04:47:42,217 INFO L132 encePairwiseOnDemand]: 199/202 looper letters, 3 selfloop transitions, 3 changer transitions 0/30 dead transitions. [2021-03-25 04:47:42,217 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 30 transitions, 111 flow [2021-03-25 04:47:42,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-25 04:47:42,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-25 04:47:42,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 543 transitions. [2021-03-25 04:47:42,219 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8960396039603961 [2021-03-25 04:47:42,219 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 543 transitions. [2021-03-25 04:47:42,219 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 543 transitions. [2021-03-25 04:47:42,219 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 04:47:42,220 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 543 transitions. [2021-03-25 04:47:42,221 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 181.0) internal successors, (543), 3 states have internal predecessors, (543), 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 04:47:42,222 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 202.0) internal successors, (808), 4 states have internal predecessors, (808), 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 04:47:42,222 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 202.0) internal successors, (808), 4 states have internal predecessors, (808), 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 04:47:42,223 INFO L185 Difference]: Start difference. First operand has 41 places, 30 transitions, 99 flow. Second operand 3 states and 543 transitions. [2021-03-25 04:47:42,223 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 30 transitions, 111 flow [2021-03-25 04:47:42,223 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 30 transitions, 108 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-25 04:47:42,224 INFO L241 Difference]: Finished difference. Result has 43 places, 30 transitions, 107 flow [2021-03-25 04:47:42,224 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=202, PETRI_DIFFERENCE_MINUEND_FLOW=96, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=107, PETRI_PLACES=43, PETRI_TRANSITIONS=30} [2021-03-25 04:47:42,224 INFO L343 CegarLoopForPetriNet]: 57 programPoint places, -14 predicate places. [2021-03-25 04:47:42,224 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 04:47:42,224 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 43 places, 30 transitions, 107 flow [2021-03-25 04:47:42,225 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 43 places, 30 transitions, 107 flow [2021-03-25 04:47:42,225 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 43 places, 30 transitions, 107 flow [2021-03-25 04:47:42,230 INFO L129 PetriNetUnfolder]: 4/46 cut-off events. [2021-03-25 04:47:42,230 INFO L130 PetriNetUnfolder]: For 35/42 co-relation queries the response was YES. [2021-03-25 04:47:42,231 INFO L84 FinitePrefix]: Finished finitePrefix Result has 100 conditions, 46 events. 4/46 cut-off events. For 35/42 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 133 event pairs, 2 based on Foata normal form. 0/41 useless extension candidates. Maximal degree in co-relation 88. Up to 13 conditions per place. [2021-03-25 04:47:42,231 INFO L142 LiptonReduction]: Number of co-enabled transitions 428 [2021-03-25 04:47:42,233 INFO L154 LiptonReduction]: Checked pairs total: 313 [2021-03-25 04:47:42,234 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 04:47:42,234 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 10 [2021-03-25 04:47:42,234 INFO L480 AbstractCegarLoop]: Abstraction has has 43 places, 30 transitions, 107 flow [2021-03-25 04:47:42,235 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 180.0) internal successors, (540), 3 states have internal predecessors, (540), 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 04:47:42,235 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 04:47:42,235 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 04:47:42,235 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-03-25 04:47:42,235 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 04:47:42,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 04:47:42,236 INFO L82 PathProgramCache]: Analyzing trace with hash -1932832544, now seen corresponding path program 1 times [2021-03-25 04:47:42,236 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 04:47:42,236 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1017787088] [2021-03-25 04:47:42,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 04:47:42,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 04:47:42,360 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:47:42,362 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 04:47:42,369 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:47:42,374 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 04:47:42,380 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:47:42,381 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 04:47:42,390 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 04:47:42,390 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1017787088] [2021-03-25 04:47:42,390 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 04:47:42,390 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-25 04:47:42,390 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1985199730] [2021-03-25 04:47:42,391 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-25 04:47:42,391 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 04:47:42,391 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-25 04:47:42,391 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-03-25 04:47:42,392 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 164 out of 202 [2021-03-25 04:47:42,393 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 30 transitions, 107 flow. Second operand has 5 states, 5 states have (on average 164.8) internal successors, (824), 5 states have internal predecessors, (824), 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 04:47:42,394 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 04:47:42,394 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 164 of 202 [2021-03-25 04:47:42,394 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 04:47:42,496 INFO L129 PetriNetUnfolder]: 80/226 cut-off events. [2021-03-25 04:47:42,496 INFO L130 PetriNetUnfolder]: For 265/320 co-relation queries the response was YES. [2021-03-25 04:47:42,497 INFO L84 FinitePrefix]: Finished finitePrefix Result has 542 conditions, 226 events. 80/226 cut-off events. For 265/320 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 1186 event pairs, 33 based on Foata normal form. 3/205 useless extension candidates. Maximal degree in co-relation 528. Up to 127 conditions per place. [2021-03-25 04:47:42,499 INFO L132 encePairwiseOnDemand]: 197/202 looper letters, 8 selfloop transitions, 5 changer transitions 0/36 dead transitions. [2021-03-25 04:47:42,499 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 36 transitions, 146 flow [2021-03-25 04:47:42,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-25 04:47:42,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-25 04:47:42,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 670 transitions. [2021-03-25 04:47:42,502 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8292079207920792 [2021-03-25 04:47:42,502 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 670 transitions. [2021-03-25 04:47:42,502 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 670 transitions. [2021-03-25 04:47:42,502 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 04:47:42,502 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 670 transitions. [2021-03-25 04:47:42,504 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 167.5) internal successors, (670), 4 states have internal predecessors, (670), 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 04:47:42,506 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 202.0) internal successors, (1010), 5 states have internal predecessors, (1010), 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 04:47:42,506 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 202.0) internal successors, (1010), 5 states have internal predecessors, (1010), 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 04:47:42,506 INFO L185 Difference]: Start difference. First operand has 43 places, 30 transitions, 107 flow. Second operand 4 states and 670 transitions. [2021-03-25 04:47:42,507 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 36 transitions, 146 flow [2021-03-25 04:47:42,509 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 36 transitions, 141 flow, removed 1 selfloop flow, removed 1 redundant places. [2021-03-25 04:47:42,510 INFO L241 Difference]: Finished difference. Result has 47 places, 34 transitions, 135 flow [2021-03-25 04:47:42,510 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=202, PETRI_DIFFERENCE_MINUEND_FLOW=102, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=135, PETRI_PLACES=47, PETRI_TRANSITIONS=34} [2021-03-25 04:47:42,510 INFO L343 CegarLoopForPetriNet]: 57 programPoint places, -10 predicate places. [2021-03-25 04:47:42,510 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 04:47:42,511 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 47 places, 34 transitions, 135 flow [2021-03-25 04:47:42,511 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 47 places, 34 transitions, 135 flow [2021-03-25 04:47:42,511 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 47 places, 34 transitions, 135 flow [2021-03-25 04:47:42,527 INFO L129 PetriNetUnfolder]: 11/78 cut-off events. [2021-03-25 04:47:42,527 INFO L130 PetriNetUnfolder]: For 139/155 co-relation queries the response was YES. [2021-03-25 04:47:42,528 INFO L84 FinitePrefix]: Finished finitePrefix Result has 191 conditions, 78 events. 11/78 cut-off events. For 139/155 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 312 event pairs, 4 based on Foata normal form. 1/69 useless extension candidates. Maximal degree in co-relation 176. Up to 21 conditions per place. [2021-03-25 04:47:42,529 INFO L142 LiptonReduction]: Number of co-enabled transitions 510 [2021-03-25 04:47:42,532 INFO L154 LiptonReduction]: Checked pairs total: 301 [2021-03-25 04:47:42,532 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 04:47:42,532 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 22 [2021-03-25 04:47:42,535 INFO L480 AbstractCegarLoop]: Abstraction has has 47 places, 34 transitions, 135 flow [2021-03-25 04:47:42,535 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 164.8) internal successors, (824), 5 states have internal predecessors, (824), 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 04:47:42,536 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 04:47:42,536 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 04:47:42,536 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-03-25 04:47:42,536 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 04:47:42,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 04:47:42,536 INFO L82 PathProgramCache]: Analyzing trace with hash -1399623866, now seen corresponding path program 1 times [2021-03-25 04:47:42,537 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 04:47:42,537 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [619419768] [2021-03-25 04:47:42,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 04:47:42,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 04:47:42,623 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:47:42,624 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:47:42,627 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:47:42,628 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:47:42,628 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:47:42,630 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 04:47:42,637 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:47:42,637 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 04:47:42,649 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 04:47:42,649 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [619419768] [2021-03-25 04:47:42,649 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 04:47:42,649 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-25 04:47:42,650 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2102087005] [2021-03-25 04:47:42,650 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-25 04:47:42,650 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 04:47:42,651 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-25 04:47:42,651 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-03-25 04:47:42,652 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 169 out of 202 [2021-03-25 04:47:42,653 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 34 transitions, 135 flow. Second operand has 5 states, 5 states have (on average 170.0) internal successors, (850), 5 states have internal predecessors, (850), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:47:42,653 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 04:47:42,653 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 169 of 202 [2021-03-25 04:47:42,653 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 04:47:42,744 INFO L129 PetriNetUnfolder]: 108/279 cut-off events. [2021-03-25 04:47:42,744 INFO L130 PetriNetUnfolder]: For 478/516 co-relation queries the response was YES. [2021-03-25 04:47:42,746 INFO L84 FinitePrefix]: Finished finitePrefix Result has 808 conditions, 279 events. 108/279 cut-off events. For 478/516 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 1507 event pairs, 23 based on Foata normal form. 6/257 useless extension candidates. Maximal degree in co-relation 791. Up to 150 conditions per place. [2021-03-25 04:47:42,747 INFO L132 encePairwiseOnDemand]: 195/202 looper letters, 8 selfloop transitions, 11 changer transitions 0/42 dead transitions. [2021-03-25 04:47:42,748 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 42 transitions, 206 flow [2021-03-25 04:47:42,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-25 04:47:42,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-25 04:47:42,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 861 transitions. [2021-03-25 04:47:42,751 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8524752475247525 [2021-03-25 04:47:42,751 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 861 transitions. [2021-03-25 04:47:42,751 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 861 transitions. [2021-03-25 04:47:42,751 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 04:47:42,751 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 861 transitions. [2021-03-25 04:47:42,753 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 172.2) internal successors, (861), 5 states have internal predecessors, (861), 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 04:47:42,754 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 202.0) internal successors, (1212), 6 states have internal predecessors, (1212), 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 04:47:42,755 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 202.0) internal successors, (1212), 6 states have internal predecessors, (1212), 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 04:47:42,755 INFO L185 Difference]: Start difference. First operand has 47 places, 34 transitions, 135 flow. Second operand 5 states and 861 transitions. [2021-03-25 04:47:42,755 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 42 transitions, 206 flow [2021-03-25 04:47:42,758 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 42 transitions, 206 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-03-25 04:47:42,759 INFO L241 Difference]: Finished difference. Result has 53 places, 41 transitions, 211 flow [2021-03-25 04:47:42,759 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=202, PETRI_DIFFERENCE_MINUEND_FLOW=135, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=211, PETRI_PLACES=53, PETRI_TRANSITIONS=41} [2021-03-25 04:47:42,759 INFO L343 CegarLoopForPetriNet]: 57 programPoint places, -4 predicate places. [2021-03-25 04:47:42,759 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 04:47:42,759 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 53 places, 41 transitions, 211 flow [2021-03-25 04:47:42,760 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 53 places, 41 transitions, 211 flow [2021-03-25 04:47:42,760 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 53 places, 41 transitions, 211 flow [2021-03-25 04:47:42,783 INFO L129 PetriNetUnfolder]: 62/179 cut-off events. [2021-03-25 04:47:42,783 INFO L130 PetriNetUnfolder]: For 565/595 co-relation queries the response was YES. [2021-03-25 04:47:42,784 INFO L84 FinitePrefix]: Finished finitePrefix Result has 588 conditions, 179 events. 62/179 cut-off events. For 565/595 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 883 event pairs, 8 based on Foata normal form. 2/154 useless extension candidates. Maximal degree in co-relation 569. Up to 68 conditions per place. [2021-03-25 04:47:42,786 INFO L142 LiptonReduction]: Number of co-enabled transitions 638 [2021-03-25 04:47:42,793 INFO L154 LiptonReduction]: Checked pairs total: 290 [2021-03-25 04:47:42,793 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 04:47:42,793 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 34 [2021-03-25 04:47:42,794 INFO L480 AbstractCegarLoop]: Abstraction has has 53 places, 41 transitions, 211 flow [2021-03-25 04:47:42,794 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 170.0) internal successors, (850), 5 states have internal predecessors, (850), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:47:42,794 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 04:47:42,794 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 04:47:42,795 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-03-25 04:47:42,795 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 04:47:42,795 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 04:47:42,795 INFO L82 PathProgramCache]: Analyzing trace with hash 1211597395, now seen corresponding path program 1 times [2021-03-25 04:47:42,795 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 04:47:42,795 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1749748409] [2021-03-25 04:47:42,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 04:47:42,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 04:47:42,841 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:47:42,842 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 04:47:42,843 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:47:42,844 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:47:42,847 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 04:47:42,847 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1749748409] [2021-03-25 04:47:42,847 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 04:47:42,847 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-25 04:47:42,848 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1978478916] [2021-03-25 04:47:42,848 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-25 04:47:42,848 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 04:47:42,848 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-25 04:47:42,849 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-25 04:47:42,849 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 179 out of 202 [2021-03-25 04:47:42,850 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 41 transitions, 211 flow. Second operand has 3 states, 3 states have (on average 180.0) internal successors, (540), 3 states have internal predecessors, (540), 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 04:47:42,850 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 04:47:42,850 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 179 of 202 [2021-03-25 04:47:42,850 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 04:47:42,898 INFO L129 PetriNetUnfolder]: 71/255 cut-off events. [2021-03-25 04:47:42,898 INFO L130 PetriNetUnfolder]: For 1733/2091 co-relation queries the response was YES. [2021-03-25 04:47:42,899 INFO L84 FinitePrefix]: Finished finitePrefix Result has 838 conditions, 255 events. 71/255 cut-off events. For 1733/2091 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 1545 event pairs, 13 based on Foata normal form. 18/251 useless extension candidates. Maximal degree in co-relation 817. Up to 91 conditions per place. [2021-03-25 04:47:42,900 INFO L132 encePairwiseOnDemand]: 199/202 looper letters, 4 selfloop transitions, 3 changer transitions 0/41 dead transitions. [2021-03-25 04:47:42,900 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 41 transitions, 225 flow [2021-03-25 04:47:42,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-25 04:47:42,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-25 04:47:42,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 543 transitions. [2021-03-25 04:47:42,903 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8960396039603961 [2021-03-25 04:47:42,903 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 543 transitions. [2021-03-25 04:47:42,903 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 543 transitions. [2021-03-25 04:47:42,903 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 04:47:42,903 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 543 transitions. [2021-03-25 04:47:42,905 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 181.0) internal successors, (543), 3 states have internal predecessors, (543), 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 04:47:42,906 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 202.0) internal successors, (808), 4 states have internal predecessors, (808), 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 04:47:42,906 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 202.0) internal successors, (808), 4 states have internal predecessors, (808), 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 04:47:42,906 INFO L185 Difference]: Start difference. First operand has 53 places, 41 transitions, 211 flow. Second operand 3 states and 543 transitions. [2021-03-25 04:47:42,906 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 41 transitions, 225 flow [2021-03-25 04:47:42,909 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 41 transitions, 216 flow, removed 4 selfloop flow, removed 1 redundant places. [2021-03-25 04:47:42,911 INFO L241 Difference]: Finished difference. Result has 55 places, 41 transitions, 215 flow [2021-03-25 04:47:42,912 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=202, PETRI_DIFFERENCE_MINUEND_FLOW=202, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=215, PETRI_PLACES=55, PETRI_TRANSITIONS=41} [2021-03-25 04:47:42,912 INFO L343 CegarLoopForPetriNet]: 57 programPoint places, -2 predicate places. [2021-03-25 04:47:42,912 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 04:47:42,912 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 55 places, 41 transitions, 215 flow [2021-03-25 04:47:42,912 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 55 places, 41 transitions, 215 flow [2021-03-25 04:47:42,913 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 55 places, 41 transitions, 215 flow [2021-03-25 04:47:42,942 INFO L129 PetriNetUnfolder]: 70/232 cut-off events. [2021-03-25 04:47:42,942 INFO L130 PetriNetUnfolder]: For 972/1069 co-relation queries the response was YES. [2021-03-25 04:47:42,943 INFO L84 FinitePrefix]: Finished finitePrefix Result has 705 conditions, 232 events. 70/232 cut-off events. For 972/1069 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 1356 event pairs, 3 based on Foata normal form. 2/213 useless extension candidates. Maximal degree in co-relation 685. Up to 87 conditions per place. [2021-03-25 04:47:42,946 INFO L142 LiptonReduction]: Number of co-enabled transitions 638 [2021-03-25 04:47:42,957 INFO L154 LiptonReduction]: Checked pairs total: 392 [2021-03-25 04:47:42,957 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 04:47:42,958 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 45 [2021-03-25 04:47:42,960 INFO L480 AbstractCegarLoop]: Abstraction has has 55 places, 41 transitions, 215 flow [2021-03-25 04:47:42,960 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 180.0) internal successors, (540), 3 states have internal predecessors, (540), 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 04:47:42,960 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 04:47:42,960 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 04:47:42,960 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-03-25 04:47:42,961 INFO L428 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 04:47:42,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 04:47:42,961 INFO L82 PathProgramCache]: Analyzing trace with hash -1095186545, now seen corresponding path program 1 times [2021-03-25 04:47:42,961 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 04:47:42,961 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1696358004] [2021-03-25 04:47:42,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 04:47:42,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 04:47:43,012 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:47:43,013 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:47:43,015 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:47:43,016 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:47:43,016 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:47:43,018 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 04:47:43,025 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:47:43,025 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 04:47:43,033 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 04:47:43,033 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1696358004] [2021-03-25 04:47:43,033 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 04:47:43,033 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-25 04:47:43,033 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [569228322] [2021-03-25 04:47:43,034 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-25 04:47:43,034 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 04:47:43,034 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-25 04:47:43,034 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-03-25 04:47:43,035 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 169 out of 202 [2021-03-25 04:47:43,036 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 41 transitions, 215 flow. Second operand has 5 states, 5 states have (on average 170.0) internal successors, (850), 5 states have internal predecessors, (850), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:47:43,036 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 04:47:43,036 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 169 of 202 [2021-03-25 04:47:43,036 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 04:47:43,103 INFO L129 PetriNetUnfolder]: 74/253 cut-off events. [2021-03-25 04:47:43,104 INFO L130 PetriNetUnfolder]: For 1279/1394 co-relation queries the response was YES. [2021-03-25 04:47:43,105 INFO L84 FinitePrefix]: Finished finitePrefix Result has 886 conditions, 253 events. 74/253 cut-off events. For 1279/1394 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 1474 event pairs, 18 based on Foata normal form. 19/254 useless extension candidates. Maximal degree in co-relation 864. Up to 114 conditions per place. [2021-03-25 04:47:43,107 INFO L132 encePairwiseOnDemand]: 197/202 looper letters, 11 selfloop transitions, 10 changer transitions 0/44 dead transitions. [2021-03-25 04:47:43,107 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 44 transitions, 263 flow [2021-03-25 04:47:43,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-25 04:47:43,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-25 04:47:43,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 688 transitions. [2021-03-25 04:47:43,110 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8514851485148515 [2021-03-25 04:47:43,110 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 688 transitions. [2021-03-25 04:47:43,110 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 688 transitions. [2021-03-25 04:47:43,110 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 04:47:43,110 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 688 transitions. [2021-03-25 04:47:43,112 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 172.0) internal successors, (688), 4 states have internal predecessors, (688), 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 04:47:43,113 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 202.0) internal successors, (1010), 5 states have internal predecessors, (1010), 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 04:47:43,113 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 202.0) internal successors, (1010), 5 states have internal predecessors, (1010), 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 04:47:43,113 INFO L185 Difference]: Start difference. First operand has 55 places, 41 transitions, 215 flow. Second operand 4 states and 688 transitions. [2021-03-25 04:47:43,113 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 44 transitions, 263 flow [2021-03-25 04:47:43,115 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 44 transitions, 258 flow, removed 1 selfloop flow, removed 1 redundant places. [2021-03-25 04:47:43,116 INFO L241 Difference]: Finished difference. Result has 58 places, 42 transitions, 240 flow [2021-03-25 04:47:43,116 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=202, PETRI_DIFFERENCE_MINUEND_FLOW=195, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=240, PETRI_PLACES=58, PETRI_TRANSITIONS=42} [2021-03-25 04:47:43,116 INFO L343 CegarLoopForPetriNet]: 57 programPoint places, 1 predicate places. [2021-03-25 04:47:43,117 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 04:47:43,117 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 58 places, 42 transitions, 240 flow [2021-03-25 04:47:43,117 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 58 places, 42 transitions, 240 flow [2021-03-25 04:47:43,117 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 58 places, 42 transitions, 240 flow [2021-03-25 04:47:43,146 INFO L129 PetriNetUnfolder]: 67/239 cut-off events. [2021-03-25 04:47:43,146 INFO L130 PetriNetUnfolder]: For 1403/1489 co-relation queries the response was YES. [2021-03-25 04:47:43,147 INFO L84 FinitePrefix]: Finished finitePrefix Result has 884 conditions, 239 events. 67/239 cut-off events. For 1403/1489 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 1421 event pairs, 3 based on Foata normal form. 2/224 useless extension candidates. Maximal degree in co-relation 862. Up to 90 conditions per place. [2021-03-25 04:47:43,150 INFO L142 LiptonReduction]: Number of co-enabled transitions 660 [2021-03-25 04:47:43,157 INFO L154 LiptonReduction]: Checked pairs total: 433 [2021-03-25 04:47:43,157 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 04:47:43,158 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 41 [2021-03-25 04:47:43,161 INFO L480 AbstractCegarLoop]: Abstraction has has 58 places, 42 transitions, 240 flow [2021-03-25 04:47:43,162 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 170.0) internal successors, (850), 5 states have internal predecessors, (850), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:47:43,162 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 04:47:43,162 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 04:47:43,163 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-03-25 04:47:43,163 INFO L428 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 04:47:43,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 04:47:43,163 INFO L82 PathProgramCache]: Analyzing trace with hash -744331237, now seen corresponding path program 1 times [2021-03-25 04:47:43,163 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 04:47:43,163 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1526002570] [2021-03-25 04:47:43,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 04:47:43,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 04:47:43,252 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:47:43,253 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-25 04:47:43,264 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:47:43,267 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 04:47:43,285 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:47:43,287 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-25 04:47:43,311 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:47:43,314 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 04:47:43,332 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:47:43,333 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-25 04:47:43,354 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 04:47:43,354 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1526002570] [2021-03-25 04:47:43,354 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 04:47:43,354 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-25 04:47:43,354 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1080237184] [2021-03-25 04:47:43,355 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 04:47:43,355 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 04:47:43,355 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 04:47:43,355 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-03-25 04:47:43,356 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 158 out of 202 [2021-03-25 04:47:43,357 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 42 transitions, 240 flow. Second operand has 7 states, 7 states have (on average 158.85714285714286) internal successors, (1112), 7 states have internal predecessors, (1112), 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 04:47:43,357 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 04:47:43,357 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 158 of 202 [2021-03-25 04:47:43,358 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 04:47:43,475 INFO L129 PetriNetUnfolder]: 83/274 cut-off events. [2021-03-25 04:47:43,476 INFO L130 PetriNetUnfolder]: For 1317/1393 co-relation queries the response was YES. [2021-03-25 04:47:43,477 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1156 conditions, 274 events. 83/274 cut-off events. For 1317/1393 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 1591 event pairs, 0 based on Foata normal form. 12/269 useless extension candidates. Maximal degree in co-relation 1132. Up to 141 conditions per place. [2021-03-25 04:47:43,478 INFO L132 encePairwiseOnDemand]: 195/202 looper letters, 19 selfloop transitions, 11 changer transitions 0/53 dead transitions. [2021-03-25 04:47:43,478 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 53 transitions, 372 flow [2021-03-25 04:47:43,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-25 04:47:43,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-25 04:47:43,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 806 transitions. [2021-03-25 04:47:43,481 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7980198019801981 [2021-03-25 04:47:43,481 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 806 transitions. [2021-03-25 04:47:43,481 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 806 transitions. [2021-03-25 04:47:43,482 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 04:47:43,482 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 806 transitions. [2021-03-25 04:47:43,483 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 161.2) internal successors, (806), 5 states have internal predecessors, (806), 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 04:47:43,485 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 202.0) internal successors, (1212), 6 states have internal predecessors, (1212), 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 04:47:43,485 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 202.0) internal successors, (1212), 6 states have internal predecessors, (1212), 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 04:47:43,485 INFO L185 Difference]: Start difference. First operand has 58 places, 42 transitions, 240 flow. Second operand 5 states and 806 transitions. [2021-03-25 04:47:43,485 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 53 transitions, 372 flow [2021-03-25 04:47:43,488 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 53 transitions, 344 flow, removed 3 selfloop flow, removed 3 redundant places. [2021-03-25 04:47:43,488 INFO L241 Difference]: Finished difference. Result has 60 places, 48 transitions, 302 flow [2021-03-25 04:47:43,489 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=202, PETRI_DIFFERENCE_MINUEND_FLOW=222, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=302, PETRI_PLACES=60, PETRI_TRANSITIONS=48} [2021-03-25 04:47:43,489 INFO L343 CegarLoopForPetriNet]: 57 programPoint places, 3 predicate places. [2021-03-25 04:47:43,489 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 04:47:43,489 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 60 places, 48 transitions, 302 flow [2021-03-25 04:47:43,490 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 60 places, 48 transitions, 302 flow [2021-03-25 04:47:43,490 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 60 places, 48 transitions, 302 flow [2021-03-25 04:47:43,551 INFO L129 PetriNetUnfolder]: 81/274 cut-off events. [2021-03-25 04:47:43,551 INFO L130 PetriNetUnfolder]: For 1287/1404 co-relation queries the response was YES. [2021-03-25 04:47:43,552 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1005 conditions, 274 events. 81/274 cut-off events. For 1287/1404 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 1679 event pairs, 6 based on Foata normal form. 15/271 useless extension candidates. Maximal degree in co-relation 983. Up to 107 conditions per place. [2021-03-25 04:47:43,555 INFO L142 LiptonReduction]: Number of co-enabled transitions 762 [2021-03-25 04:47:43,566 INFO L154 LiptonReduction]: Checked pairs total: 668 [2021-03-25 04:47:43,566 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 04:47:43,566 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 77 [2021-03-25 04:47:43,568 INFO L480 AbstractCegarLoop]: Abstraction has has 60 places, 48 transitions, 302 flow [2021-03-25 04:47:43,568 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 158.85714285714286) internal successors, (1112), 7 states have internal predecessors, (1112), 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 04:47:43,568 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 04:47:43,568 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 04:47:43,568 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-03-25 04:47:43,568 INFO L428 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 04:47:43,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 04:47:43,569 INFO L82 PathProgramCache]: Analyzing trace with hash 1654836085, now seen corresponding path program 2 times [2021-03-25 04:47:43,569 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 04:47:43,569 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [390053055] [2021-03-25 04:47:43,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 04:47:43,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 04:47:43,646 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:47:43,646 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 04:47:43,654 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:47:43,655 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-25 04:47:43,665 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:47:43,667 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 04:47:43,675 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:47:43,675 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 04:47:43,686 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:47:43,686 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 04:47:43,697 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 04:47:43,698 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [390053055] [2021-03-25 04:47:43,698 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 04:47:43,698 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-25 04:47:43,698 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [353014959] [2021-03-25 04:47:43,698 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 04:47:43,698 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 04:47:43,698 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 04:47:43,699 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-03-25 04:47:43,700 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 159 out of 202 [2021-03-25 04:47:43,701 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 48 transitions, 302 flow. Second operand has 7 states, 7 states have (on average 159.85714285714286) internal successors, (1119), 7 states have internal predecessors, (1119), 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 04:47:43,701 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 04:47:43,701 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 159 of 202 [2021-03-25 04:47:43,701 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 04:47:43,840 INFO L129 PetriNetUnfolder]: 83/292 cut-off events. [2021-03-25 04:47:43,840 INFO L130 PetriNetUnfolder]: For 1312/1391 co-relation queries the response was YES. [2021-03-25 04:47:43,841 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1260 conditions, 292 events. 83/292 cut-off events. For 1312/1391 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 1789 event pairs, 0 based on Foata normal form. 12/287 useless extension candidates. Maximal degree in co-relation 1236. Up to 129 conditions per place. [2021-03-25 04:47:43,843 INFO L132 encePairwiseOnDemand]: 195/202 looper letters, 12 selfloop transitions, 25 changer transitions 0/60 dead transitions. [2021-03-25 04:47:43,843 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 60 transitions, 465 flow [2021-03-25 04:47:43,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-25 04:47:43,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-25 04:47:43,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 975 transitions. [2021-03-25 04:47:43,846 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8044554455445545 [2021-03-25 04:47:43,846 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 975 transitions. [2021-03-25 04:47:43,846 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 975 transitions. [2021-03-25 04:47:43,847 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 04:47:43,847 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 975 transitions. [2021-03-25 04:47:43,849 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 162.5) internal successors, (975), 6 states have internal predecessors, (975), 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 04:47:43,852 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 202.0) internal successors, (1414), 7 states have internal predecessors, (1414), 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 04:47:43,852 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 202.0) internal successors, (1414), 7 states have internal predecessors, (1414), 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 04:47:43,852 INFO L185 Difference]: Start difference. First operand has 60 places, 48 transitions, 302 flow. Second operand 6 states and 975 transitions. [2021-03-25 04:47:43,852 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 60 transitions, 465 flow [2021-03-25 04:47:43,855 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 60 transitions, 440 flow, removed 5 selfloop flow, removed 3 redundant places. [2021-03-25 04:47:43,856 INFO L241 Difference]: Finished difference. Result has 65 places, 56 transitions, 430 flow [2021-03-25 04:47:43,856 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=202, PETRI_DIFFERENCE_MINUEND_FLOW=282, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=430, PETRI_PLACES=65, PETRI_TRANSITIONS=56} [2021-03-25 04:47:43,856 INFO L343 CegarLoopForPetriNet]: 57 programPoint places, 8 predicate places. [2021-03-25 04:47:43,856 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 04:47:43,856 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 65 places, 56 transitions, 430 flow [2021-03-25 04:47:43,856 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 65 places, 56 transitions, 430 flow [2021-03-25 04:47:43,857 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 65 places, 56 transitions, 430 flow [2021-03-25 04:47:43,895 INFO L129 PetriNetUnfolder]: 78/279 cut-off events. [2021-03-25 04:47:43,896 INFO L130 PetriNetUnfolder]: For 1695/1805 co-relation queries the response was YES. [2021-03-25 04:47:43,897 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1216 conditions, 279 events. 78/279 cut-off events. For 1695/1805 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 1744 event pairs, 10 based on Foata normal form. 6/268 useless extension candidates. Maximal degree in co-relation 1192. Up to 113 conditions per place. [2021-03-25 04:47:43,901 INFO L142 LiptonReduction]: Number of co-enabled transitions 902 [2021-03-25 04:47:43,913 INFO L154 LiptonReduction]: Checked pairs total: 1004 [2021-03-25 04:47:43,913 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 04:47:43,913 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 57 [2021-03-25 04:47:43,914 INFO L480 AbstractCegarLoop]: Abstraction has has 65 places, 56 transitions, 430 flow [2021-03-25 04:47:43,914 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 159.85714285714286) internal successors, (1119), 7 states have internal predecessors, (1119), 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 04:47:43,914 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 04:47:43,914 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 04:47:43,914 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-03-25 04:47:43,915 INFO L428 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 04:47:43,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 04:47:43,915 INFO L82 PathProgramCache]: Analyzing trace with hash -1915199001, now seen corresponding path program 3 times [2021-03-25 04:47:43,915 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 04:47:43,915 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2040400949] [2021-03-25 04:47:43,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 04:47:43,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 04:47:43,980 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:47:43,981 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 04:47:43,986 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:47:43,986 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 04:47:43,987 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:47:43,987 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 04:47:43,995 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:47:43,998 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-25 04:47:44,013 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:47:44,014 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 04:47:44,022 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 04:47:44,022 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2040400949] [2021-03-25 04:47:44,023 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 04:47:44,023 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-25 04:47:44,023 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1434291966] [2021-03-25 04:47:44,023 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-25 04:47:44,023 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 04:47:44,023 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-25 04:47:44,024 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-03-25 04:47:44,025 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 165 out of 202 [2021-03-25 04:47:44,025 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 56 transitions, 430 flow. Second operand has 6 states, 6 states have (on average 166.0) internal successors, (996), 6 states have internal predecessors, (996), 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 04:47:44,025 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 04:47:44,026 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 165 of 202 [2021-03-25 04:47:44,026 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 04:47:44,126 INFO L129 PetriNetUnfolder]: 86/307 cut-off events. [2021-03-25 04:47:44,126 INFO L130 PetriNetUnfolder]: For 1749/1836 co-relation queries the response was YES. [2021-03-25 04:47:44,127 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1510 conditions, 307 events. 86/307 cut-off events. For 1749/1836 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 1963 event pairs, 8 based on Foata normal form. 13/303 useless extension candidates. Maximal degree in co-relation 1484. Up to 153 conditions per place. [2021-03-25 04:47:44,129 INFO L132 encePairwiseOnDemand]: 195/202 looper letters, 22 selfloop transitions, 14 changer transitions 0/59 dead transitions. [2021-03-25 04:47:44,130 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 59 transitions, 530 flow [2021-03-25 04:47:44,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-25 04:47:44,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-25 04:47:44,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 840 transitions. [2021-03-25 04:47:44,132 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8316831683168316 [2021-03-25 04:47:44,132 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 840 transitions. [2021-03-25 04:47:44,132 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 840 transitions. [2021-03-25 04:47:44,133 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 04:47:44,133 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 840 transitions. [2021-03-25 04:47:44,134 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 168.0) internal successors, (840), 5 states have internal predecessors, (840), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:47:44,136 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 202.0) internal successors, (1212), 6 states have internal predecessors, (1212), 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 04:47:44,137 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 202.0) internal successors, (1212), 6 states have internal predecessors, (1212), 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 04:47:44,137 INFO L185 Difference]: Start difference. First operand has 65 places, 56 transitions, 430 flow. Second operand 5 states and 840 transitions. [2021-03-25 04:47:44,137 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 59 transitions, 530 flow [2021-03-25 04:47:44,140 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 59 transitions, 522 flow, removed 4 selfloop flow, removed 0 redundant places. [2021-03-25 04:47:44,143 INFO L241 Difference]: Finished difference. Result has 70 places, 57 transitions, 470 flow [2021-03-25 04:47:44,143 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=202, PETRI_DIFFERENCE_MINUEND_FLOW=424, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=56, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=470, PETRI_PLACES=70, PETRI_TRANSITIONS=57} [2021-03-25 04:47:44,143 INFO L343 CegarLoopForPetriNet]: 57 programPoint places, 13 predicate places. [2021-03-25 04:47:44,143 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 04:47:44,143 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 70 places, 57 transitions, 470 flow [2021-03-25 04:47:44,144 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 70 places, 57 transitions, 470 flow [2021-03-25 04:47:44,144 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 70 places, 57 transitions, 470 flow [2021-03-25 04:47:44,184 INFO L129 PetriNetUnfolder]: 84/304 cut-off events. [2021-03-25 04:47:44,185 INFO L130 PetriNetUnfolder]: For 1868/2002 co-relation queries the response was YES. [2021-03-25 04:47:44,186 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1386 conditions, 304 events. 84/304 cut-off events. For 1868/2002 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 1966 event pairs, 6 based on Foata normal form. 19/306 useless extension candidates. Maximal degree in co-relation 1359. Up to 119 conditions per place. [2021-03-25 04:47:44,191 INFO L142 LiptonReduction]: Number of co-enabled transitions 924 [2021-03-25 04:47:44,206 INFO L154 LiptonReduction]: Checked pairs total: 1032 [2021-03-25 04:47:44,207 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 04:47:44,207 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 64 [2021-03-25 04:47:44,208 INFO L480 AbstractCegarLoop]: Abstraction has has 70 places, 57 transitions, 470 flow [2021-03-25 04:47:44,209 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 166.0) internal successors, (996), 6 states have internal predecessors, (996), 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 04:47:44,209 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 04:47:44,209 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 04:47:44,209 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-03-25 04:47:44,209 INFO L428 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 04:47:44,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 04:47:44,209 INFO L82 PathProgramCache]: Analyzing trace with hash 1133444327, now seen corresponding path program 4 times [2021-03-25 04:47:44,209 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 04:47:44,210 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [176988071] [2021-03-25 04:47:44,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 04:47:44,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 04:47:44,274 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:47:44,275 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 04:47:44,282 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:47:44,283 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 04:47:44,292 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:47:44,294 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 04:47:44,303 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:47:44,304 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-25 04:47:44,317 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:47:44,317 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 04:47:44,326 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 04:47:44,326 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [176988071] [2021-03-25 04:47:44,326 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 04:47:44,326 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-25 04:47:44,326 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1814665648] [2021-03-25 04:47:44,327 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 04:47:44,327 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 04:47:44,327 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 04:47:44,328 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-03-25 04:47:44,329 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 165 out of 202 [2021-03-25 04:47:44,330 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 57 transitions, 470 flow. Second operand has 7 states, 7 states have (on average 165.85714285714286) internal successors, (1161), 7 states have internal predecessors, (1161), 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 04:47:44,330 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 04:47:44,330 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 165 of 202 [2021-03-25 04:47:44,330 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 04:47:44,445 INFO L129 PetriNetUnfolder]: 86/313 cut-off events. [2021-03-25 04:47:44,445 INFO L130 PetriNetUnfolder]: For 1952/2039 co-relation queries the response was YES. [2021-03-25 04:47:44,447 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1623 conditions, 313 events. 86/313 cut-off events. For 1952/2039 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 2029 event pairs, 11 based on Foata normal form. 13/309 useless extension candidates. Maximal degree in co-relation 1594. Up to 141 conditions per place. [2021-03-25 04:47:44,449 INFO L132 encePairwiseOnDemand]: 196/202 looper letters, 21 selfloop transitions, 17 changer transitions 0/61 dead transitions. [2021-03-25 04:47:44,450 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 61 transitions, 585 flow [2021-03-25 04:47:44,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-25 04:47:44,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-25 04:47:44,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 840 transitions. [2021-03-25 04:47:44,452 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8316831683168316 [2021-03-25 04:47:44,452 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 840 transitions. [2021-03-25 04:47:44,452 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 840 transitions. [2021-03-25 04:47:44,453 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 04:47:44,453 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 840 transitions. [2021-03-25 04:47:44,454 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 168.0) internal successors, (840), 5 states have internal predecessors, (840), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:47:44,456 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 202.0) internal successors, (1212), 6 states have internal predecessors, (1212), 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 04:47:44,456 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 202.0) internal successors, (1212), 6 states have internal predecessors, (1212), 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 04:47:44,456 INFO L185 Difference]: Start difference. First operand has 70 places, 57 transitions, 470 flow. Second operand 5 states and 840 transitions. [2021-03-25 04:47:44,456 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 61 transitions, 585 flow [2021-03-25 04:47:44,460 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 61 transitions, 561 flow, removed 0 selfloop flow, removed 3 redundant places. [2021-03-25 04:47:44,462 INFO L241 Difference]: Finished difference. Result has 73 places, 59 transitions, 527 flow [2021-03-25 04:47:44,462 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=202, PETRI_DIFFERENCE_MINUEND_FLOW=446, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=57, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=527, PETRI_PLACES=73, PETRI_TRANSITIONS=59} [2021-03-25 04:47:44,462 INFO L343 CegarLoopForPetriNet]: 57 programPoint places, 16 predicate places. [2021-03-25 04:47:44,462 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 04:47:44,462 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 73 places, 59 transitions, 527 flow [2021-03-25 04:47:44,462 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 73 places, 59 transitions, 527 flow [2021-03-25 04:47:44,463 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 73 places, 59 transitions, 527 flow [2021-03-25 04:47:44,508 INFO L129 PetriNetUnfolder]: 84/307 cut-off events. [2021-03-25 04:47:44,508 INFO L130 PetriNetUnfolder]: For 2570/2696 co-relation queries the response was YES. [2021-03-25 04:47:44,510 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1523 conditions, 307 events. 84/307 cut-off events. For 2570/2696 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 2002 event pairs, 9 based on Foata normal form. 14/304 useless extension candidates. Maximal degree in co-relation 1494. Up to 122 conditions per place. [2021-03-25 04:47:44,514 INFO L142 LiptonReduction]: Number of co-enabled transitions 958 [2021-03-25 04:47:44,530 INFO L154 LiptonReduction]: Checked pairs total: 1100 [2021-03-25 04:47:44,531 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 04:47:44,531 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 69 [2021-03-25 04:47:44,531 INFO L480 AbstractCegarLoop]: Abstraction has has 73 places, 59 transitions, 527 flow [2021-03-25 04:47:44,532 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 165.85714285714286) internal successors, (1161), 7 states have internal predecessors, (1161), 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 04:47:44,532 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 04:47:44,532 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 04:47:44,532 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-03-25 04:47:44,532 INFO L428 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 04:47:44,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 04:47:44,532 INFO L82 PathProgramCache]: Analyzing trace with hash -1853117161, now seen corresponding path program 1 times [2021-03-25 04:47:44,532 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 04:47:44,532 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2080459091] [2021-03-25 04:47:44,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 04:47:44,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 04:47:44,570 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:47:44,570 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:47:44,573 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:47:44,573 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:47:44,577 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:47:44,577 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 04:47:44,577 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 04:47:44,578 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2080459091] [2021-03-25 04:47:44,578 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 04:47:44,578 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-25 04:47:44,578 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1796134473] [2021-03-25 04:47:44,578 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-25 04:47:44,578 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 04:47:44,578 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-25 04:47:44,579 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-25 04:47:44,579 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 167 out of 202 [2021-03-25 04:47:44,580 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 59 transitions, 527 flow. Second operand has 4 states, 4 states have (on average 167.75) internal successors, (671), 4 states have internal predecessors, (671), 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 04:47:44,580 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 04:47:44,580 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 167 of 202 [2021-03-25 04:47:44,580 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 04:47:44,953 INFO L129 PetriNetUnfolder]: 1481/2658 cut-off events. [2021-03-25 04:47:44,954 INFO L130 PetriNetUnfolder]: For 9868/12120 co-relation queries the response was YES. [2021-03-25 04:47:44,972 INFO L84 FinitePrefix]: Finished finitePrefix Result has 9312 conditions, 2658 events. 1481/2658 cut-off events. For 9868/12120 co-relation queries the response was YES. Maximal size of possible extension queue 494. Compared 20604 event pairs, 627 based on Foata normal form. 320/2410 useless extension candidates. Maximal degree in co-relation 9281. Up to 1698 conditions per place. [2021-03-25 04:47:44,986 INFO L132 encePairwiseOnDemand]: 195/202 looper letters, 17 selfloop transitions, 10 changer transitions 0/73 dead transitions. [2021-03-25 04:47:44,986 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 73 transitions, 609 flow [2021-03-25 04:47:44,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-25 04:47:44,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-25 04:47:44,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 859 transitions. [2021-03-25 04:47:44,989 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8504950495049505 [2021-03-25 04:47:44,989 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 859 transitions. [2021-03-25 04:47:44,989 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 859 transitions. [2021-03-25 04:47:44,990 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 04:47:44,990 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 859 transitions. [2021-03-25 04:47:44,991 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 171.8) internal successors, (859), 5 states have internal predecessors, (859), 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 04:47:44,993 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 202.0) internal successors, (1212), 6 states have internal predecessors, (1212), 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 04:47:44,993 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 202.0) internal successors, (1212), 6 states have internal predecessors, (1212), 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 04:47:44,994 INFO L185 Difference]: Start difference. First operand has 73 places, 59 transitions, 527 flow. Second operand 5 states and 859 transitions. [2021-03-25 04:47:44,994 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 73 transitions, 609 flow [2021-03-25 04:47:45,013 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 73 transitions, 583 flow, removed 5 selfloop flow, removed 2 redundant places. [2021-03-25 04:47:45,015 INFO L241 Difference]: Finished difference. Result has 78 places, 68 transitions, 596 flow [2021-03-25 04:47:45,015 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=202, PETRI_DIFFERENCE_MINUEND_FLOW=501, PETRI_DIFFERENCE_MINUEND_PLACES=71, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=596, PETRI_PLACES=78, PETRI_TRANSITIONS=68} [2021-03-25 04:47:45,015 INFO L343 CegarLoopForPetriNet]: 57 programPoint places, 21 predicate places. [2021-03-25 04:47:45,015 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 04:47:45,015 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 78 places, 68 transitions, 596 flow [2021-03-25 04:47:45,016 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 78 places, 68 transitions, 596 flow [2021-03-25 04:47:45,017 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 78 places, 68 transitions, 596 flow [2021-03-25 04:47:45,277 INFO L129 PetriNetUnfolder]: 1213/2277 cut-off events. [2021-03-25 04:47:45,278 INFO L130 PetriNetUnfolder]: For 9938/11403 co-relation queries the response was YES. [2021-03-25 04:47:45,297 INFO L84 FinitePrefix]: Finished finitePrefix Result has 9652 conditions, 2277 events. 1213/2277 cut-off events. For 9938/11403 co-relation queries the response was YES. Maximal size of possible extension queue 416. Compared 18101 event pairs, 448 based on Foata normal form. 72/1989 useless extension candidates. Maximal degree in co-relation 9620. Up to 1416 conditions per place. [2021-03-25 04:47:45,332 INFO L142 LiptonReduction]: Number of co-enabled transitions 1204 [2021-03-25 04:47:46,038 INFO L154 LiptonReduction]: Checked pairs total: 490 [2021-03-25 04:47:46,039 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 04:47:46,039 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1024 [2021-03-25 04:47:46,039 INFO L480 AbstractCegarLoop]: Abstraction has has 78 places, 68 transitions, 596 flow [2021-03-25 04:47:46,039 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 167.75) internal successors, (671), 4 states have internal predecessors, (671), 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 04:47:46,040 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 04:47:46,040 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 04:47:46,040 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-03-25 04:47:46,040 INFO L428 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 04:47:46,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 04:47:46,040 INFO L82 PathProgramCache]: Analyzing trace with hash -1610805422, now seen corresponding path program 1 times [2021-03-25 04:47:46,040 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 04:47:46,040 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2020390271] [2021-03-25 04:47:46,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 04:47:46,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 04:47:46,091 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:47:46,092 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 04:47:46,101 INFO L142 QuantifierPusher]: treesize reduction 10, result has 82.5 percent of original size [2021-03-25 04:47:46,102 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-25 04:47:46,121 INFO L142 QuantifierPusher]: treesize reduction 10, result has 83.3 percent of original size [2021-03-25 04:47:46,124 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-03-25 04:47:46,146 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:47:46,147 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 04:47:46,156 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:47:46,157 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 04:47:46,157 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 04:47:46,157 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2020390271] [2021-03-25 04:47:46,157 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 04:47:46,157 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-25 04:47:46,157 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [29857597] [2021-03-25 04:47:46,158 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-25 04:47:46,158 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 04:47:46,158 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-25 04:47:46,158 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-03-25 04:47:46,159 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 159 out of 202 [2021-03-25 04:47:46,160 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 68 transitions, 596 flow. Second operand has 6 states, 6 states have (on average 160.0) internal successors, (960), 6 states have internal predecessors, (960), 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 04:47:46,160 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 04:47:46,161 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 159 of 202 [2021-03-25 04:47:46,161 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 04:47:46,608 INFO L129 PetriNetUnfolder]: 1472/2699 cut-off events. [2021-03-25 04:47:46,609 INFO L130 PetriNetUnfolder]: For 13498/17083 co-relation queries the response was YES. [2021-03-25 04:47:46,626 INFO L84 FinitePrefix]: Finished finitePrefix Result has 11837 conditions, 2699 events. 1472/2699 cut-off events. For 13498/17083 co-relation queries the response was YES. Maximal size of possible extension queue 519. Compared 21876 event pairs, 508 based on Foata normal form. 271/2515 useless extension candidates. Maximal degree in co-relation 11803. Up to 1843 conditions per place. [2021-03-25 04:47:46,638 INFO L132 encePairwiseOnDemand]: 197/202 looper letters, 20 selfloop transitions, 20 changer transitions 0/72 dead transitions. [2021-03-25 04:47:46,638 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 72 transitions, 721 flow [2021-03-25 04:47:46,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-25 04:47:46,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-25 04:47:46,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 970 transitions. [2021-03-25 04:47:46,641 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8003300330033003 [2021-03-25 04:47:46,641 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 970 transitions. [2021-03-25 04:47:46,641 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 970 transitions. [2021-03-25 04:47:46,641 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 04:47:46,641 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 970 transitions. [2021-03-25 04:47:46,643 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 161.66666666666666) internal successors, (970), 6 states have internal predecessors, (970), 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 04:47:46,645 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 202.0) internal successors, (1414), 7 states have internal predecessors, (1414), 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 04:47:46,657 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 202.0) internal successors, (1414), 7 states have internal predecessors, (1414), 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 04:47:46,657 INFO L185 Difference]: Start difference. First operand has 78 places, 68 transitions, 596 flow. Second operand 6 states and 970 transitions. [2021-03-25 04:47:46,657 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 72 transitions, 721 flow [2021-03-25 04:47:46,682 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 72 transitions, 716 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-25 04:47:46,684 INFO L241 Difference]: Finished difference. Result has 83 places, 68 transitions, 650 flow [2021-03-25 04:47:46,684 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=202, PETRI_DIFFERENCE_MINUEND_FLOW=591, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=68, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=650, PETRI_PLACES=83, PETRI_TRANSITIONS=68} [2021-03-25 04:47:46,684 INFO L343 CegarLoopForPetriNet]: 57 programPoint places, 26 predicate places. [2021-03-25 04:47:46,684 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 04:47:46,684 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 83 places, 68 transitions, 650 flow [2021-03-25 04:47:46,685 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 83 places, 68 transitions, 650 flow [2021-03-25 04:47:46,685 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 83 places, 68 transitions, 650 flow [2021-03-25 04:47:47,024 INFO L129 PetriNetUnfolder]: 1465/2660 cut-off events. [2021-03-25 04:47:47,025 INFO L130 PetriNetUnfolder]: For 13197/14680 co-relation queries the response was YES. [2021-03-25 04:47:47,040 INFO L84 FinitePrefix]: Finished finitePrefix Result has 11357 conditions, 2660 events. 1465/2660 cut-off events. For 13197/14680 co-relation queries the response was YES. Maximal size of possible extension queue 483. Compared 21002 event pairs, 670 based on Foata normal form. 52/2302 useless extension candidates. Maximal degree in co-relation 11323. Up to 1798 conditions per place. [2021-03-25 04:47:47,075 INFO L142 LiptonReduction]: Number of co-enabled transitions 1202 [2021-03-25 04:47:47,831 INFO L154 LiptonReduction]: Checked pairs total: 508 [2021-03-25 04:47:47,831 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 04:47:47,831 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1147 [2021-03-25 04:47:47,832 INFO L480 AbstractCegarLoop]: Abstraction has has 83 places, 68 transitions, 650 flow [2021-03-25 04:47:47,833 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 160.0) internal successors, (960), 6 states have internal predecessors, (960), 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 04:47:47,833 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 04:47:47,833 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 04:47:47,833 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-03-25 04:47:47,833 INFO L428 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 04:47:47,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 04:47:47,834 INFO L82 PathProgramCache]: Analyzing trace with hash -807872553, now seen corresponding path program 1 times [2021-03-25 04:47:47,834 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 04:47:47,834 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [20463094] [2021-03-25 04:47:47,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 04:47:47,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 04:47:47,874 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:47:47,875 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:47:47,878 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:47:47,878 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:47:47,882 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:47:47,883 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:47:47,887 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:47:47,888 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 04:47:47,888 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 04:47:47,888 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [20463094] [2021-03-25 04:47:47,889 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 04:47:47,889 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-25 04:47:47,889 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1878136924] [2021-03-25 04:47:47,889 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-25 04:47:47,889 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 04:47:47,890 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-25 04:47:47,890 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-03-25 04:47:47,891 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 167 out of 202 [2021-03-25 04:47:47,891 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 68 transitions, 650 flow. Second operand has 5 states, 5 states have (on average 167.8) internal successors, (839), 5 states have internal predecessors, (839), 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 04:47:47,892 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 04:47:47,892 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 167 of 202 [2021-03-25 04:47:47,892 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 04:47:48,275 INFO L129 PetriNetUnfolder]: 1386/2512 cut-off events. [2021-03-25 04:47:48,276 INFO L130 PetriNetUnfolder]: For 14203/27046 co-relation queries the response was YES. [2021-03-25 04:47:48,290 INFO L84 FinitePrefix]: Finished finitePrefix Result has 11175 conditions, 2512 events. 1386/2512 cut-off events. For 14203/27046 co-relation queries the response was YES. Maximal size of possible extension queue 511. Compared 19158 event pairs, 206 based on Foata normal form. 581/2633 useless extension candidates. Maximal degree in co-relation 11139. Up to 1813 conditions per place. [2021-03-25 04:47:48,300 INFO L132 encePairwiseOnDemand]: 195/202 looper letters, 18 selfloop transitions, 19 changer transitions 0/83 dead transitions. [2021-03-25 04:47:48,300 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 89 places, 83 transitions, 804 flow [2021-03-25 04:47:48,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 04:47:48,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 04:47:48,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1203 transitions. [2021-03-25 04:47:48,303 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8507779349363508 [2021-03-25 04:47:48,303 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1203 transitions. [2021-03-25 04:47:48,304 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1203 transitions. [2021-03-25 04:47:48,304 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 04:47:48,304 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1203 transitions. [2021-03-25 04:47:48,306 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 171.85714285714286) internal successors, (1203), 7 states have internal predecessors, (1203), 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 04:47:48,308 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 202.0) internal successors, (1616), 8 states have internal predecessors, (1616), 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 04:47:48,309 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 202.0) internal successors, (1616), 8 states have internal predecessors, (1616), 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 04:47:48,309 INFO L185 Difference]: Start difference. First operand has 83 places, 68 transitions, 650 flow. Second operand 7 states and 1203 transitions. [2021-03-25 04:47:48,309 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 89 places, 83 transitions, 804 flow [2021-03-25 04:47:48,328 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 85 places, 83 transitions, 788 flow, removed 2 selfloop flow, removed 4 redundant places. [2021-03-25 04:47:48,329 INFO L241 Difference]: Finished difference. Result has 88 places, 77 transitions, 788 flow [2021-03-25 04:47:48,330 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=202, PETRI_DIFFERENCE_MINUEND_FLOW=634, PETRI_DIFFERENCE_MINUEND_PLACES=79, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=68, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=788, PETRI_PLACES=88, PETRI_TRANSITIONS=77} [2021-03-25 04:47:48,330 INFO L343 CegarLoopForPetriNet]: 57 programPoint places, 31 predicate places. [2021-03-25 04:47:48,330 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 04:47:48,330 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 88 places, 77 transitions, 788 flow [2021-03-25 04:47:48,330 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 88 places, 77 transitions, 788 flow [2021-03-25 04:47:48,331 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 88 places, 77 transitions, 788 flow [2021-03-25 04:47:48,534 INFO L129 PetriNetUnfolder]: 1050/2012 cut-off events. [2021-03-25 04:47:48,535 INFO L130 PetriNetUnfolder]: For 12271/16661 co-relation queries the response was YES. [2021-03-25 04:47:48,548 INFO L84 FinitePrefix]: Finished finitePrefix Result has 10811 conditions, 2012 events. 1050/2012 cut-off events. For 12271/16661 co-relation queries the response was YES. Maximal size of possible extension queue 396. Compared 16153 event pairs, 187 based on Foata normal form. 49/1740 useless extension candidates. Maximal degree in co-relation 10775. Up to 1504 conditions per place. [2021-03-25 04:47:48,574 INFO L142 LiptonReduction]: Number of co-enabled transitions 1342 [2021-03-25 04:47:48,779 INFO L154 LiptonReduction]: Checked pairs total: 630 [2021-03-25 04:47:48,779 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 04:47:48,779 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 449 [2021-03-25 04:47:48,779 INFO L480 AbstractCegarLoop]: Abstraction has has 88 places, 77 transitions, 788 flow [2021-03-25 04:47:48,780 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 167.8) internal successors, (839), 5 states have internal predecessors, (839), 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 04:47:48,780 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 04:47:48,780 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 04:47:48,780 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-03-25 04:47:48,780 INFO L428 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 04:47:48,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 04:47:48,781 INFO L82 PathProgramCache]: Analyzing trace with hash 113911554, now seen corresponding path program 1 times [2021-03-25 04:47:48,781 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 04:47:48,781 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1310630313] [2021-03-25 04:47:48,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 04:47:48,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 04:47:48,819 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:47:48,819 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:47:48,822 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:47:48,823 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:47:48,827 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:47:48,827 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:47:48,832 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:47:48,832 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:47:48,838 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:47:48,838 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 04:47:48,838 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 04:47:48,838 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1310630313] [2021-03-25 04:47:48,838 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 04:47:48,839 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-25 04:47:48,839 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [194457475] [2021-03-25 04:47:48,839 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-25 04:47:48,839 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 04:47:48,839 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-25 04:47:48,840 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-03-25 04:47:48,841 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 167 out of 202 [2021-03-25 04:47:48,841 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 77 transitions, 788 flow. Second operand has 6 states, 6 states have (on average 167.83333333333334) internal successors, (1007), 6 states have internal predecessors, (1007), 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 04:47:48,841 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 04:47:48,841 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 167 of 202 [2021-03-25 04:47:48,841 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 04:47:49,176 INFO L129 PetriNetUnfolder]: 1058/1950 cut-off events. [2021-03-25 04:47:49,176 INFO L130 PetriNetUnfolder]: For 15823/45663 co-relation queries the response was YES. [2021-03-25 04:47:49,188 INFO L84 FinitePrefix]: Finished finitePrefix Result has 10989 conditions, 1950 events. 1058/1950 cut-off events. For 15823/45663 co-relation queries the response was YES. Maximal size of possible extension queue 403. Compared 14106 event pairs, 20 based on Foata normal form. 738/2268 useless extension candidates. Maximal degree in co-relation 10951. Up to 1592 conditions per place. [2021-03-25 04:47:49,200 INFO L132 encePairwiseOnDemand]: 195/202 looper letters, 12 selfloop transitions, 28 changer transitions 6/83 dead transitions. [2021-03-25 04:47:49,200 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 83 transitions, 862 flow [2021-03-25 04:47:49,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-25 04:47:49,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-25 04:47:49,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1547 transitions. [2021-03-25 04:47:49,204 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8509350935093509 [2021-03-25 04:47:49,204 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1547 transitions. [2021-03-25 04:47:49,204 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1547 transitions. [2021-03-25 04:47:49,205 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 04:47:49,205 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1547 transitions. [2021-03-25 04:47:49,207 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 171.88888888888889) internal successors, (1547), 9 states have internal predecessors, (1547), 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 04:47:49,210 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 202.0) internal successors, (2020), 10 states have internal predecessors, (2020), 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 04:47:49,210 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 202.0) internal successors, (2020), 10 states have internal predecessors, (2020), 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 04:47:49,210 INFO L185 Difference]: Start difference. First operand has 88 places, 77 transitions, 788 flow. Second operand 9 states and 1547 transitions. [2021-03-25 04:47:49,210 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 83 transitions, 862 flow [2021-03-25 04:47:49,242 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 89 places, 83 transitions, 773 flow, removed 25 selfloop flow, removed 7 redundant places. [2021-03-25 04:47:49,244 INFO L241 Difference]: Finished difference. Result has 92 places, 74 transitions, 716 flow [2021-03-25 04:47:49,244 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=202, PETRI_DIFFERENCE_MINUEND_FLOW=551, PETRI_DIFFERENCE_MINUEND_PLACES=81, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=67, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=716, PETRI_PLACES=92, PETRI_TRANSITIONS=74} [2021-03-25 04:47:49,244 INFO L343 CegarLoopForPetriNet]: 57 programPoint places, 35 predicate places. [2021-03-25 04:47:49,245 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 04:47:49,245 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 92 places, 74 transitions, 716 flow [2021-03-25 04:47:49,245 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 92 places, 74 transitions, 716 flow [2021-03-25 04:47:49,245 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 92 places, 74 transitions, 716 flow [2021-03-25 04:47:49,370 INFO L129 PetriNetUnfolder]: 665/1388 cut-off events. [2021-03-25 04:47:49,370 INFO L130 PetriNetUnfolder]: For 12051/14397 co-relation queries the response was YES. [2021-03-25 04:47:49,376 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7877 conditions, 1388 events. 665/1388 cut-off events. For 12051/14397 co-relation queries the response was YES. Maximal size of possible extension queue 286. Compared 11065 event pairs, 24 based on Foata normal form. 32/1130 useless extension candidates. Maximal degree in co-relation 7840. Up to 948 conditions per place. [2021-03-25 04:47:49,388 INFO L142 LiptonReduction]: Number of co-enabled transitions 1352 [2021-03-25 04:47:49,404 INFO L154 LiptonReduction]: Checked pairs total: 476 [2021-03-25 04:47:49,404 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 04:47:49,405 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 160 [2021-03-25 04:47:49,405 INFO L480 AbstractCegarLoop]: Abstraction has has 92 places, 74 transitions, 716 flow [2021-03-25 04:47:49,405 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 167.83333333333334) internal successors, (1007), 6 states have internal predecessors, (1007), 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 04:47:49,405 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 04:47:49,405 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, 1, 1] [2021-03-25 04:47:49,405 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-03-25 04:47:49,406 INFO L428 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 04:47:49,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 04:47:49,406 INFO L82 PathProgramCache]: Analyzing trace with hash -847327120, now seen corresponding path program 1 times [2021-03-25 04:47:49,406 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 04:47:49,406 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [989169829] [2021-03-25 04:47:49,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 04:47:49,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 04:47:49,448 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:47:49,449 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 04:47:49,449 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:47:49,449 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:47:49,453 INFO L142 QuantifierPusher]: treesize reduction 7, result has 68.2 percent of original size [2021-03-25 04:47:49,453 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 04:47:49,462 INFO L142 QuantifierPusher]: treesize reduction 7, result has 68.2 percent of original size [2021-03-25 04:47:49,463 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 04:47:49,473 INFO L142 QuantifierPusher]: treesize reduction 8, result has 80.0 percent of original size [2021-03-25 04:47:49,473 INFO L147 QuantifierPusher]: treesize reduction 9, result has 71.9 percent of original size 23 [2021-03-25 04:47:49,483 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:47:49,484 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-25 04:47:49,484 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 04:47:49,484 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [989169829] [2021-03-25 04:47:49,484 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 04:47:49,484 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-25 04:47:49,485 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [575534794] [2021-03-25 04:47:49,485 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-25 04:47:49,485 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 04:47:49,485 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-25 04:47:49,485 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-03-25 04:47:49,486 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 159 out of 202 [2021-03-25 04:47:49,487 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 74 transitions, 716 flow. Second operand has 6 states, 6 states have (on average 160.16666666666666) internal successors, (961), 6 states have internal predecessors, (961), 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 04:47:49,487 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 04:47:49,487 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 159 of 202 [2021-03-25 04:47:49,487 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 04:47:49,901 INFO L129 PetriNetUnfolder]: 1660/3609 cut-off events. [2021-03-25 04:47:49,901 INFO L130 PetriNetUnfolder]: For 30998/36340 co-relation queries the response was YES. [2021-03-25 04:47:49,921 INFO L84 FinitePrefix]: Finished finitePrefix Result has 19725 conditions, 3609 events. 1660/3609 cut-off events. For 30998/36340 co-relation queries the response was YES. Maximal size of possible extension queue 772. Compared 34941 event pairs, 42 based on Foata normal form. 141/3259 useless extension candidates. Maximal degree in co-relation 19686. Up to 2264 conditions per place. [2021-03-25 04:47:49,933 INFO L132 encePairwiseOnDemand]: 195/202 looper letters, 39 selfloop transitions, 14 changer transitions 10/114 dead transitions. [2021-03-25 04:47:49,933 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 97 places, 114 transitions, 1332 flow [2021-03-25 04:47:49,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-25 04:47:49,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-25 04:47:49,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 978 transitions. [2021-03-25 04:47:49,936 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.806930693069307 [2021-03-25 04:47:49,936 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 978 transitions. [2021-03-25 04:47:49,936 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 978 transitions. [2021-03-25 04:47:49,938 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 04:47:49,938 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 978 transitions. [2021-03-25 04:47:49,939 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 163.0) internal successors, (978), 6 states have internal predecessors, (978), 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 04:47:49,941 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 202.0) internal successors, (1414), 7 states have internal predecessors, (1414), 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 04:47:49,941 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 202.0) internal successors, (1414), 7 states have internal predecessors, (1414), 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 04:47:49,941 INFO L185 Difference]: Start difference. First operand has 92 places, 74 transitions, 716 flow. Second operand 6 states and 978 transitions. [2021-03-25 04:47:49,941 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 97 places, 114 transitions, 1332 flow [2021-03-25 04:47:50,290 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 114 transitions, 1188 flow, removed 34 selfloop flow, removed 6 redundant places. [2021-03-25 04:47:50,291 INFO L241 Difference]: Finished difference. Result has 95 places, 82 transitions, 738 flow [2021-03-25 04:47:50,291 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=202, PETRI_DIFFERENCE_MINUEND_FLOW=603, PETRI_DIFFERENCE_MINUEND_PLACES=86, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=74, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=63, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=738, PETRI_PLACES=95, PETRI_TRANSITIONS=82} [2021-03-25 04:47:50,291 INFO L343 CegarLoopForPetriNet]: 57 programPoint places, 38 predicate places. [2021-03-25 04:47:50,291 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 04:47:50,292 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 95 places, 82 transitions, 738 flow [2021-03-25 04:47:50,292 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 95 places, 82 transitions, 738 flow [2021-03-25 04:47:50,292 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 95 places, 82 transitions, 738 flow [2021-03-25 04:47:50,527 INFO L129 PetriNetUnfolder]: 1482/3019 cut-off events. [2021-03-25 04:47:50,527 INFO L130 PetriNetUnfolder]: For 11774/12392 co-relation queries the response was YES. [2021-03-25 04:47:50,546 INFO L84 FinitePrefix]: Finished finitePrefix Result has 11783 conditions, 3019 events. 1482/3019 cut-off events. For 11774/12392 co-relation queries the response was YES. Maximal size of possible extension queue 629. Compared 27210 event pairs, 45 based on Foata normal form. 44/2506 useless extension candidates. Maximal degree in co-relation 11743. Up to 952 conditions per place. [2021-03-25 04:47:50,582 INFO L142 LiptonReduction]: Number of co-enabled transitions 1808 [2021-03-25 04:47:50,752 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 58 [2021-03-25 04:47:51,122 WARN L205 SmtUtils]: Spent 310.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 84 [2021-03-25 04:47:51,242 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 81 [2021-03-25 04:47:51,396 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 58 [2021-03-25 04:47:51,817 WARN L205 SmtUtils]: Spent 363.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 88 [2021-03-25 04:47:51,950 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2021-03-25 04:47:52,107 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 58 [2021-03-25 04:47:52,491 WARN L205 SmtUtils]: Spent 325.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 81 [2021-03-25 04:47:52,603 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2021-03-25 04:47:52,780 WARN L205 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 58 [2021-03-25 04:47:53,105 WARN L205 SmtUtils]: Spent 266.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 81 [2021-03-25 04:47:53,215 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2021-03-25 04:47:54,495 INFO L154 LiptonReduction]: Checked pairs total: 243 [2021-03-25 04:47:54,495 INFO L156 LiptonReduction]: Total number of compositions: 7 [2021-03-25 04:47:54,496 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 4205 [2021-03-25 04:47:54,496 INFO L480 AbstractCegarLoop]: Abstraction has has 95 places, 79 transitions, 728 flow [2021-03-25 04:47:54,496 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 160.16666666666666) internal successors, (961), 6 states have internal predecessors, (961), 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 04:47:54,496 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 04:47:54,496 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, 1, 1] [2021-03-25 04:47:54,497 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-03-25 04:47:54,497 INFO L428 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 04:47:54,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 04:47:54,497 INFO L82 PathProgramCache]: Analyzing trace with hash -1697988300, now seen corresponding path program 2 times [2021-03-25 04:47:54,497 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 04:47:54,497 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2084306101] [2021-03-25 04:47:54,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 04:47:54,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 04:47:54,532 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:47:54,533 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:47:54,536 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:47:54,536 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:47:54,540 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:47:54,540 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:47:54,545 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:47:54,545 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:47:54,550 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:47:54,551 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:47:54,556 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:47:54,556 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 04:47:54,556 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 04:47:54,556 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2084306101] [2021-03-25 04:47:54,556 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 04:47:54,557 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 04:47:54,557 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [889892952] [2021-03-25 04:47:54,557 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 04:47:54,557 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 04:47:54,557 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 04:47:54,557 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-03-25 04:47:54,559 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 171 out of 206 [2021-03-25 04:47:54,559 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 79 transitions, 728 flow. Second operand has 7 states, 7 states have (on average 171.85714285714286) internal successors, (1203), 7 states have internal predecessors, (1203), 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 04:47:54,559 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 04:47:54,560 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 171 of 206 [2021-03-25 04:47:54,560 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 04:47:54,857 INFO L129 PetriNetUnfolder]: 1281/2257 cut-off events. [2021-03-25 04:47:54,857 INFO L130 PetriNetUnfolder]: For 9569/13244 co-relation queries the response was YES. [2021-03-25 04:47:54,866 INFO L84 FinitePrefix]: Finished finitePrefix Result has 9376 conditions, 2257 events. 1281/2257 cut-off events. For 9569/13244 co-relation queries the response was YES. Maximal size of possible extension queue 426. Compared 15791 event pairs, 0 based on Foata normal form. 418/2214 useless extension candidates. Maximal degree in co-relation 9334. Up to 970 conditions per place. [2021-03-25 04:47:54,868 INFO L132 encePairwiseOnDemand]: 199/206 looper letters, 6 selfloop transitions, 18 changer transitions 27/76 dead transitions. [2021-03-25 04:47:54,868 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 76 transitions, 762 flow [2021-03-25 04:47:54,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-25 04:47:54,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-25 04:47:54,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1399 transitions. [2021-03-25 04:47:54,883 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8489077669902912 [2021-03-25 04:47:54,883 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1399 transitions. [2021-03-25 04:47:54,883 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1399 transitions. [2021-03-25 04:47:54,884 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 04:47:54,884 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1399 transitions. [2021-03-25 04:47:54,886 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 174.875) internal successors, (1399), 8 states have internal predecessors, (1399), 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 04:47:54,889 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 206.0) internal successors, (1854), 9 states have internal predecessors, (1854), 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 04:47:54,889 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 206.0) internal successors, (1854), 9 states have internal predecessors, (1854), 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 04:47:54,889 INFO L185 Difference]: Start difference. First operand has 95 places, 79 transitions, 728 flow. Second operand 8 states and 1399 transitions. [2021-03-25 04:47:54,889 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 76 transitions, 762 flow [2021-03-25 04:47:54,921 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 86 places, 76 transitions, 670 flow, removed 33 selfloop flow, removed 10 redundant places. [2021-03-25 04:47:54,922 INFO L241 Difference]: Finished difference. Result has 89 places, 46 transitions, 352 flow [2021-03-25 04:47:54,922 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=206, PETRI_DIFFERENCE_MINUEND_FLOW=564, PETRI_DIFFERENCE_MINUEND_PLACES=79, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=67, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=352, PETRI_PLACES=89, PETRI_TRANSITIONS=46} [2021-03-25 04:47:54,922 INFO L343 CegarLoopForPetriNet]: 57 programPoint places, 32 predicate places. [2021-03-25 04:47:54,922 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 04:47:54,922 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 89 places, 46 transitions, 352 flow [2021-03-25 04:47:54,925 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 89 places, 46 transitions, 352 flow [2021-03-25 04:47:54,926 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 81 places, 46 transitions, 352 flow [2021-03-25 04:47:54,947 INFO L129 PetriNetUnfolder]: 87/237 cut-off events. [2021-03-25 04:47:54,948 INFO L130 PetriNetUnfolder]: For 613/680 co-relation queries the response was YES. [2021-03-25 04:47:54,948 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1045 conditions, 237 events. 87/237 cut-off events. For 613/680 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 1236 event pairs, 0 based on Foata normal form. 1/213 useless extension candidates. Maximal degree in co-relation 1013. Up to 107 conditions per place. [2021-03-25 04:47:54,950 INFO L142 LiptonReduction]: Number of co-enabled transitions 444 [2021-03-25 04:47:55,566 WARN L205 SmtUtils]: Spent 613.00 ms on a formula simplification. DAG size of input: 237 DAG size of output: 184 [2021-03-25 04:47:55,781 WARN L205 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 168 [2021-03-25 04:47:57,078 WARN L205 SmtUtils]: Spent 1.29 s on a formula simplification. DAG size of input: 338 DAG size of output: 260 [2021-03-25 04:47:57,550 WARN L205 SmtUtils]: Spent 468.00 ms on a formula simplification that was a NOOP. DAG size: 242 [2021-03-25 04:47:57,857 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 57 [2021-03-25 04:47:58,232 WARN L205 SmtUtils]: Spent 312.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 83 [2021-03-25 04:47:58,367 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2021-03-25 04:47:58,577 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 74 [2021-03-25 04:47:58,866 WARN L205 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 93 [2021-03-25 04:47:59,162 WARN L205 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 180 [2021-03-25 04:47:59,399 WARN L205 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 180 [2021-03-25 04:47:59,890 WARN L205 SmtUtils]: Spent 489.00 ms on a formula simplification that was a NOOP. DAG size: 254 [2021-03-25 04:48:00,402 WARN L205 SmtUtils]: Spent 510.00 ms on a formula simplification that was a NOOP. DAG size: 254 [2021-03-25 04:48:00,407 INFO L154 LiptonReduction]: Checked pairs total: 100 [2021-03-25 04:48:00,407 INFO L156 LiptonReduction]: Total number of compositions: 9 [2021-03-25 04:48:00,407 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 5485 [2021-03-25 04:48:00,408 INFO L480 AbstractCegarLoop]: Abstraction has has 75 places, 40 transitions, 344 flow [2021-03-25 04:48:00,408 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 171.85714285714286) internal successors, (1203), 7 states have internal predecessors, (1203), 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 04:48:00,408 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 04:48:00,408 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, 1, 1, 1, 1, 1] [2021-03-25 04:48:00,408 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-03-25 04:48:00,409 INFO L428 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 04:48:00,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 04:48:00,409 INFO L82 PathProgramCache]: Analyzing trace with hash 1412927602, now seen corresponding path program 1 times [2021-03-25 04:48:00,409 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 04:48:00,409 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1128227522] [2021-03-25 04:48:00,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 04:48:00,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-25 04:48:00,434 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-25 04:48:00,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-25 04:48:00,461 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-25 04:48:00,503 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-03-25 04:48:00,503 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-03-25 04:48:00,503 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-03-25 04:48:00,620 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.03 04:48:00 BasicIcfg [2021-03-25 04:48:00,620 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-25 04:48:00,620 INFO L168 Benchmark]: Toolchain (without parser) took 34131.69 ms. Allocated memory was 339.7 MB in the beginning and 903.9 MB in the end (delta: 564.1 MB). Free memory was 303.0 MB in the beginning and 852.8 MB in the end (delta: -549.7 MB). Peak memory consumption was 533.4 MB. Max. memory is 16.0 GB. [2021-03-25 04:48:00,620 INFO L168 Benchmark]: CDTParser took 0.47 ms. Allocated memory is still 339.7 MB. Free memory was 321.3 MB in the beginning and 321.2 MB in the end (delta: 70.6 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-25 04:48:00,621 INFO L168 Benchmark]: CACSL2BoogieTranslator took 585.54 ms. Allocated memory is still 339.7 MB. Free memory was 302.8 MB in the beginning and 297.4 MB in the end (delta: 5.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 16.0 GB. [2021-03-25 04:48:00,621 INFO L168 Benchmark]: Boogie Procedure Inliner took 76.23 ms. Allocated memory is still 339.7 MB. Free memory was 297.4 MB in the beginning and 295.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-25 04:48:00,622 INFO L168 Benchmark]: Boogie Preprocessor took 44.23 ms. Allocated memory is still 339.7 MB. Free memory was 295.3 MB in the beginning and 292.1 MB in the end (delta: 3.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.0 GB. [2021-03-25 04:48:00,622 INFO L168 Benchmark]: RCFGBuilder took 1854.22 ms. Allocated memory is still 339.7 MB. Free memory was 292.1 MB in the beginning and 268.0 MB in the end (delta: 24.1 MB). Peak memory consumption was 163.6 MB. Max. memory is 16.0 GB. [2021-03-25 04:48:00,622 INFO L168 Benchmark]: TraceAbstraction took 31557.79 ms. Allocated memory was 339.7 MB in the beginning and 903.9 MB in the end (delta: 564.1 MB). Free memory was 268.0 MB in the beginning and 852.8 MB in the end (delta: -584.7 MB). Peak memory consumption was 496.5 MB. Max. memory is 16.0 GB. [2021-03-25 04:48:00,627 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.47 ms. Allocated memory is still 339.7 MB. Free memory was 321.3 MB in the beginning and 321.2 MB in the end (delta: 70.6 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 585.54 ms. Allocated memory is still 339.7 MB. Free memory was 302.8 MB in the beginning and 297.4 MB in the end (delta: 5.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 76.23 ms. Allocated memory is still 339.7 MB. Free memory was 297.4 MB in the beginning and 295.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 44.23 ms. Allocated memory is still 339.7 MB. Free memory was 295.3 MB in the beginning and 292.1 MB in the end (delta: 3.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.0 GB. * RCFGBuilder took 1854.22 ms. Allocated memory is still 339.7 MB. Free memory was 292.1 MB in the beginning and 268.0 MB in the end (delta: 24.1 MB). Peak memory consumption was 163.6 MB. Max. memory is 16.0 GB. * TraceAbstraction took 31557.79 ms. Allocated memory was 339.7 MB in the beginning and 903.9 MB in the end (delta: 564.1 MB). Free memory was 268.0 MB in the beginning and 852.8 MB in the end (delta: -584.7 MB). Peak memory consumption was 496.5 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 8023.1ms, 123 PlacesBefore, 57 PlacesAfterwards, 112 TransitionsBefore, 45 TransitionsAfterwards, 2598 CoEnabledTransitionPairs, 6 FixpointIterations, 31 TrivialSequentialCompositions, 41 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 2 ConcurrentYvCompositions, 1 ChoiceCompositions, 75 TotalNumberOfCompositions, 4306 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2405, positive: 2302, positive conditional: 0, positive unconditional: 2302, negative: 103, negative conditional: 0, negative unconditional: 103, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1267, positive: 1239, positive conditional: 0, positive unconditional: 1239, negative: 28, negative conditional: 0, negative unconditional: 28, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1267, positive: 1239, positive conditional: 0, positive unconditional: 1239, negative: 28, negative conditional: 0, negative unconditional: 28, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2405, positive: 1063, positive conditional: 0, positive unconditional: 1063, negative: 75, negative conditional: 0, negative unconditional: 75, unknown: 1267, unknown conditional: 0, unknown unconditional: 1267] , Statistics on independence cache: Total cache size (in pairs): 173, Positive cache size: 157, Positive conditional cache size: 0, Positive unconditional cache size: 157, Negative cache size: 16, Negative conditional cache size: 0, Negative unconditional cache size: 16 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3773.0ms, 53 PlacesBefore, 38 PlacesAfterwards, 37 TransitionsBefore, 27 TransitionsAfterwards, 392 CoEnabledTransitionPairs, 5 FixpointIterations, 9 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 10 TotalNumberOfCompositions, 2232 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 643, positive: 514, positive conditional: 0, positive unconditional: 514, negative: 129, negative conditional: 0, negative unconditional: 129, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 33, positive: 23, positive conditional: 0, positive unconditional: 23, negative: 10, negative conditional: 0, negative unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 33, positive: 23, positive conditional: 0, positive unconditional: 23, negative: 10, negative conditional: 0, negative unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 643, positive: 491, positive conditional: 0, positive unconditional: 491, negative: 119, negative conditional: 0, negative unconditional: 119, unknown: 33, unknown conditional: 0, unknown unconditional: 33] , Statistics on independence cache: Total cache size (in pairs): 188, Positive cache size: 165, Positive conditional cache size: 0, Positive unconditional cache size: 165, Negative cache size: 23, Negative conditional cache size: 0, Negative unconditional cache size: 23 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 8.0ms, 39 PlacesBefore, 39 PlacesAfterwards, 29 TransitionsBefore, 29 TransitionsAfterwards, 408 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 397 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 117, positive: 95, positive conditional: 0, positive unconditional: 95, negative: 22, negative conditional: 0, negative unconditional: 22, 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: 117, positive: 95, positive conditional: 0, positive unconditional: 95, negative: 22, negative conditional: 0, negative unconditional: 22, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 188, Positive cache size: 165, Positive conditional cache size: 0, Positive unconditional cache size: 165, Negative cache size: 23, Negative conditional cache size: 0, Negative unconditional cache size: 23 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 171.6ms, 41 PlacesBefore, 40 PlacesAfterwards, 29 TransitionsBefore, 28 TransitionsAfterwards, 404 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 698 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 190, positive: 152, positive conditional: 0, positive unconditional: 152, negative: 38, negative conditional: 0, negative unconditional: 38, 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: 190, positive: 149, positive conditional: 0, positive unconditional: 149, negative: 38, negative conditional: 0, negative unconditional: 38, unknown: 3, unknown conditional: 0, unknown unconditional: 3] , Statistics on independence cache: Total cache size (in pairs): 161, Positive cache size: 142, Positive conditional cache size: 0, Positive unconditional cache size: 142, Negative cache size: 19, Negative conditional cache size: 0, Negative unconditional cache size: 19 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 13.6ms, 41 PlacesBefore, 41 PlacesAfterwards, 30 TransitionsBefore, 30 TransitionsAfterwards, 428 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 257 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 36, positive: 22, positive conditional: 0, positive unconditional: 22, negative: 14, negative conditional: 0, negative unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 5, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 5, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 36, positive: 20, positive conditional: 0, positive unconditional: 20, negative: 11, negative conditional: 0, negative unconditional: 11, unknown: 5, unknown conditional: 0, unknown unconditional: 5] , Statistics on independence cache: Total cache size (in pairs): 166, Positive cache size: 144, Positive conditional cache size: 0, Positive unconditional cache size: 144, Negative cache size: 22, Negative conditional cache size: 0, Negative unconditional cache size: 22 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 8.9ms, 43 PlacesBefore, 43 PlacesAfterwards, 30 TransitionsBefore, 30 TransitionsAfterwards, 428 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 313 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 80, positive: 63, positive conditional: 0, positive unconditional: 63, 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: 4, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 4, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 80, positive: 59, positive conditional: 0, positive unconditional: 59, negative: 17, negative conditional: 0, negative unconditional: 17, unknown: 4, unknown conditional: 0, unknown unconditional: 4] , Statistics on independence cache: Total cache size (in pairs): 170, Positive cache size: 148, Positive conditional cache size: 0, Positive unconditional cache size: 148, Negative cache size: 22, Negative conditional cache size: 0, Negative unconditional cache size: 22 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 20.9ms, 47 PlacesBefore, 47 PlacesAfterwards, 34 TransitionsBefore, 34 TransitionsAfterwards, 510 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 301 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 73, positive: 58, positive conditional: 0, positive unconditional: 58, 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: 2, positive: 2, positive conditional: 0, positive unconditional: 2, 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: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 73, positive: 56, positive conditional: 0, positive unconditional: 56, negative: 15, negative conditional: 0, negative unconditional: 15, unknown: 2, unknown conditional: 0, unknown unconditional: 2] , Statistics on independence cache: Total cache size (in pairs): 172, Positive cache size: 150, Positive conditional cache size: 0, Positive unconditional cache size: 150, Negative cache size: 22, Negative conditional cache size: 0, Negative unconditional cache size: 22 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 33.2ms, 53 PlacesBefore, 53 PlacesAfterwards, 41 TransitionsBefore, 41 TransitionsAfterwards, 638 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 290 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 80, positive: 68, positive conditional: 0, positive unconditional: 68, negative: 12, negative conditional: 0, negative unconditional: 12, 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: 80, positive: 67, positive conditional: 0, positive unconditional: 67, negative: 12, negative conditional: 0, negative unconditional: 12, unknown: 1, unknown conditional: 0, unknown unconditional: 1] , Statistics on independence cache: Total cache size (in pairs): 173, Positive cache size: 151, Positive conditional cache size: 0, Positive unconditional cache size: 151, Negative cache size: 22, Negative conditional cache size: 0, Negative unconditional cache size: 22 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 45.2ms, 55 PlacesBefore, 55 PlacesAfterwards, 41 TransitionsBefore, 41 TransitionsAfterwards, 638 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 392 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 134, positive: 119, positive conditional: 0, positive unconditional: 119, 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: 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: 134, positive: 119, positive conditional: 0, positive unconditional: 119, negative: 15, negative conditional: 0, negative unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 173, Positive cache size: 151, Positive conditional cache size: 0, Positive unconditional cache size: 151, Negative cache size: 22, Negative conditional cache size: 0, Negative unconditional cache size: 22 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 40.6ms, 58 PlacesBefore, 58 PlacesAfterwards, 42 TransitionsBefore, 42 TransitionsAfterwards, 660 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 433 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 109, positive: 92, positive conditional: 0, positive unconditional: 92, 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: 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: 109, positive: 92, positive conditional: 0, positive unconditional: 92, negative: 17, negative conditional: 0, negative unconditional: 17, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 173, Positive cache size: 151, Positive conditional cache size: 0, Positive unconditional cache size: 151, Negative cache size: 22, Negative conditional cache size: 0, Negative unconditional cache size: 22 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 76.2ms, 60 PlacesBefore, 60 PlacesAfterwards, 48 TransitionsBefore, 48 TransitionsAfterwards, 762 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 668 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 217, positive: 192, positive conditional: 0, positive unconditional: 192, negative: 25, negative conditional: 0, negative unconditional: 25, 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: 217, positive: 189, positive conditional: 0, positive unconditional: 189, negative: 25, negative conditional: 0, negative unconditional: 25, unknown: 3, unknown conditional: 0, unknown unconditional: 3] , Statistics on independence cache: Total cache size (in pairs): 176, Positive cache size: 154, Positive conditional cache size: 0, Positive unconditional cache size: 154, Negative cache size: 22, Negative conditional cache size: 0, Negative unconditional cache size: 22 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 57.0ms, 65 PlacesBefore, 65 PlacesAfterwards, 56 TransitionsBefore, 56 TransitionsAfterwards, 902 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 1004 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 251, positive: 215, positive conditional: 0, positive unconditional: 215, negative: 36, negative conditional: 0, negative unconditional: 36, 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: 251, positive: 214, positive conditional: 0, positive unconditional: 214, negative: 36, negative conditional: 0, negative unconditional: 36, unknown: 1, unknown conditional: 0, unknown unconditional: 1] , Statistics on independence cache: Total cache size (in pairs): 177, Positive cache size: 155, Positive conditional cache size: 0, Positive unconditional cache size: 155, Negative cache size: 22, Negative conditional cache size: 0, Negative unconditional cache size: 22 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 63.1ms, 70 PlacesBefore, 70 PlacesAfterwards, 57 TransitionsBefore, 57 TransitionsAfterwards, 924 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 1032 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 265, positive: 229, positive conditional: 0, positive unconditional: 229, negative: 36, negative conditional: 0, negative unconditional: 36, 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: 265, positive: 229, positive conditional: 0, positive unconditional: 229, negative: 36, negative conditional: 0, negative unconditional: 36, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 177, Positive cache size: 155, Positive conditional cache size: 0, Positive unconditional cache size: 155, Negative cache size: 22, Negative conditional cache size: 0, Negative unconditional cache size: 22 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 68.1ms, 73 PlacesBefore, 73 PlacesAfterwards, 59 TransitionsBefore, 59 TransitionsAfterwards, 958 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 1100 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 286, positive: 247, positive conditional: 0, positive unconditional: 247, negative: 39, negative conditional: 0, negative unconditional: 39, 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: 286, positive: 247, positive conditional: 0, positive unconditional: 247, negative: 39, negative conditional: 0, negative unconditional: 39, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 177, Positive cache size: 155, Positive conditional cache size: 0, Positive unconditional cache size: 155, Negative cache size: 22, Negative conditional cache size: 0, Negative unconditional cache size: 22 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1022.9ms, 78 PlacesBefore, 78 PlacesAfterwards, 68 TransitionsBefore, 68 TransitionsAfterwards, 1204 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 490 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 166, positive: 152, positive conditional: 0, positive unconditional: 152, negative: 14, negative conditional: 0, negative unconditional: 14, 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: 166, positive: 152, positive conditional: 0, positive unconditional: 152, negative: 14, negative conditional: 0, negative unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 177, Positive cache size: 155, Positive conditional cache size: 0, Positive unconditional cache size: 155, Negative cache size: 22, Negative conditional cache size: 0, Negative unconditional cache size: 22 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1146.5ms, 83 PlacesBefore, 83 PlacesAfterwards, 68 TransitionsBefore, 68 TransitionsAfterwards, 1202 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 508 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 187, positive: 172, positive conditional: 0, positive unconditional: 172, 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: 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: 187, positive: 172, positive conditional: 0, positive unconditional: 172, negative: 15, negative conditional: 0, negative unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 177, Positive cache size: 155, Positive conditional cache size: 0, Positive unconditional cache size: 155, Negative cache size: 22, Negative conditional cache size: 0, Negative unconditional cache size: 22 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 448.8ms, 88 PlacesBefore, 88 PlacesAfterwards, 77 TransitionsBefore, 77 TransitionsAfterwards, 1342 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 630 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 200, positive: 184, positive conditional: 0, positive unconditional: 184, 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: 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: 200, positive: 184, positive conditional: 0, positive unconditional: 184, negative: 16, negative conditional: 0, negative unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 177, Positive cache size: 155, Positive conditional cache size: 0, Positive unconditional cache size: 155, Negative cache size: 22, Negative conditional cache size: 0, Negative unconditional cache size: 22 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 159.5ms, 92 PlacesBefore, 92 PlacesAfterwards, 74 TransitionsBefore, 74 TransitionsAfterwards, 1352 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 476 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 172, positive: 160, positive conditional: 0, positive unconditional: 160, negative: 12, negative conditional: 0, negative unconditional: 12, 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: 172, positive: 160, positive conditional: 0, positive unconditional: 160, negative: 12, negative conditional: 0, negative unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 177, Positive cache size: 155, Positive conditional cache size: 0, Positive unconditional cache size: 155, Negative cache size: 22, Negative conditional cache size: 0, Negative unconditional cache size: 22 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4203.7ms, 95 PlacesBefore, 95 PlacesAfterwards, 82 TransitionsBefore, 79 TransitionsAfterwards, 1808 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 4 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 3 ConcurrentYvCompositions, 0 ChoiceCompositions, 7 TotalNumberOfCompositions, 243 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 243, positive: 243, positive conditional: 0, positive unconditional: 243, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: 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: 243, positive: 243, positive conditional: 0, positive unconditional: 243, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 167, Positive cache size: 150, Positive conditional cache size: 0, Positive unconditional cache size: 150, Negative cache size: 17, Negative conditional cache size: 0, Negative unconditional cache size: 17 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 5482.0ms, 89 PlacesBefore, 75 PlacesAfterwards, 46 TransitionsBefore, 40 TransitionsAfterwards, 444 CoEnabledTransitionPairs, 3 FixpointIterations, 1 TrivialSequentialCompositions, 6 ConcurrentSequentialCompositions, 1 TrivialYvCompositions, 1 ConcurrentYvCompositions, 0 ChoiceCompositions, 9 TotalNumberOfCompositions, 100 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 100, positive: 100, positive conditional: 0, positive unconditional: 100, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 20, positive: 20, positive conditional: 0, positive unconditional: 20, 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: 20, positive: 20, positive conditional: 0, positive unconditional: 20, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 100, positive: 80, positive conditional: 0, positive unconditional: 80, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 20, unknown conditional: 0, unknown unconditional: 20] , Statistics on independence cache: Total cache size (in pairs): 70, Positive cache size: 65, Positive conditional cache size: 0, Positive unconditional cache size: 65, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5 - CounterExampleResult [Line: 18]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L710] 0 int __unbuffered_cnt = 0; [L712] 0 int __unbuffered_p3_EAX = 0; [L714] 0 int __unbuffered_p3_EBX = 0; [L716] 0 int a = 0; [L718] 0 int b = 0; [L719] 0 _Bool main$tmp_guard0; [L720] 0 _Bool main$tmp_guard1; [L722] 0 int x = 0; [L724] 0 int y = 0; [L726] 0 int z = 0; [L727] 0 _Bool z$flush_delayed; [L728] 0 int z$mem_tmp; [L729] 0 _Bool z$r_buff0_thd0; [L730] 0 _Bool z$r_buff0_thd1; [L731] 0 _Bool z$r_buff0_thd2; [L732] 0 _Bool z$r_buff0_thd3; [L733] 0 _Bool z$r_buff0_thd4; [L734] 0 _Bool z$r_buff1_thd0; [L735] 0 _Bool z$r_buff1_thd1; [L736] 0 _Bool z$r_buff1_thd2; [L737] 0 _Bool z$r_buff1_thd3; [L738] 0 _Bool z$r_buff1_thd4; [L739] 0 _Bool z$read_delayed; [L740] 0 int *z$read_delayed_var; [L741] 0 int z$w_buff0; [L742] 0 _Bool z$w_buff0_used; [L743] 0 int z$w_buff1; [L744] 0 _Bool z$w_buff1_used; [L745] 0 _Bool weak$$choice0; [L746] 0 _Bool weak$$choice2; [L844] 0 pthread_t t1277; [L845] FCALL, FORK 0 pthread_create(&t1277, ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, b=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L846] 0 pthread_t t1278; [L847] FCALL, FORK 0 pthread_create(&t1278, ((void *)0), P1, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, b=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L848] 0 pthread_t t1279; [L849] FCALL, FORK 0 pthread_create(&t1279, ((void *)0), P2, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, b=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L850] 0 pthread_t t1280; [L851] FCALL, FORK 0 pthread_create(&t1280, ((void *)0), P3, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, b=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L800] 4 z$w_buff1 = z$w_buff0 [L801] 4 z$w_buff0 = 2 [L802] 4 z$w_buff1_used = z$w_buff0_used [L803] 4 z$w_buff0_used = (_Bool)1 [L18] COND FALSE 4 !(!expression) [L805] 4 z$r_buff1_thd0 = z$r_buff0_thd0 [L806] 4 z$r_buff1_thd1 = z$r_buff0_thd1 [L807] 4 z$r_buff1_thd2 = z$r_buff0_thd2 [L808] 4 z$r_buff1_thd3 = z$r_buff0_thd3 [L809] 4 z$r_buff1_thd4 = z$r_buff0_thd4 [L810] 4 z$r_buff0_thd4 = (_Bool)1 [L813] 4 a = 1 [L816] 4 __unbuffered_p3_EAX = a VAL [__unbuffered_cnt=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, b=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L819] 4 __unbuffered_p3_EBX = b VAL [__unbuffered_cnt=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, b=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L750] 1 b = 1 VAL [__unbuffered_cnt=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L753] 1 x = 1 VAL [__unbuffered_cnt=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L765] 2 x = 2 VAL [__unbuffered_cnt=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L768] 2 y = 1 VAL [__unbuffered_cnt=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=1, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L780] 3 y = 2 VAL [__unbuffered_cnt=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=2, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L783] 3 z = 1 VAL [__unbuffered_cnt=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=2, z=1, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L786] EXPR 3 z$w_buff0_used && z$r_buff0_thd3 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd3 ? z$w_buff1 : z) [L786] EXPR 3 z$w_buff1_used && z$r_buff1_thd3 ? z$w_buff1 : z [L786] EXPR 3 z$w_buff0_used && z$r_buff0_thd3 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd3 ? z$w_buff1 : z) [L786] 3 z = z$w_buff0_used && z$r_buff0_thd3 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd3 ? z$w_buff1 : z) [L787] EXPR 3 z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : z$w_buff0_used [L787] 3 z$w_buff0_used = z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : z$w_buff0_used [L788] EXPR 3 z$w_buff0_used && z$r_buff0_thd3 || z$w_buff1_used && z$r_buff1_thd3 ? (_Bool)0 : z$w_buff1_used [L788] 3 z$w_buff1_used = z$w_buff0_used && z$r_buff0_thd3 || z$w_buff1_used && z$r_buff1_thd3 ? (_Bool)0 : z$w_buff1_used [L789] EXPR 3 z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : z$r_buff0_thd3 [L789] 3 z$r_buff0_thd3 = z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : z$r_buff0_thd3 [L790] EXPR 3 z$w_buff0_used && z$r_buff0_thd3 || z$w_buff1_used && z$r_buff1_thd3 ? (_Bool)0 : z$r_buff1_thd3 [L790] 3 z$r_buff1_thd3 = z$w_buff0_used && z$r_buff0_thd3 || z$w_buff1_used && z$r_buff1_thd3 ? (_Bool)0 : z$r_buff1_thd3 [L822] EXPR 4 z$w_buff0_used && z$r_buff0_thd4 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd4 ? z$w_buff1 : z) [L822] 4 z = z$w_buff0_used && z$r_buff0_thd4 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd4 ? z$w_buff1 : z) [L823] EXPR 4 z$w_buff0_used && z$r_buff0_thd4 ? (_Bool)0 : z$w_buff0_used [L823] 4 z$w_buff0_used = z$w_buff0_used && z$r_buff0_thd4 ? (_Bool)0 : z$w_buff0_used [L824] EXPR 4 z$w_buff0_used && z$r_buff0_thd4 || z$w_buff1_used && z$r_buff1_thd4 ? (_Bool)0 : z$w_buff1_used [L824] 4 z$w_buff1_used = z$w_buff0_used && z$r_buff0_thd4 || z$w_buff1_used && z$r_buff1_thd4 ? (_Bool)0 : z$w_buff1_used [L825] EXPR 4 z$w_buff0_used && z$r_buff0_thd4 ? (_Bool)0 : z$r_buff0_thd4 [L825] 4 z$r_buff0_thd4 = z$w_buff0_used && z$r_buff0_thd4 ? (_Bool)0 : z$r_buff0_thd4 [L826] EXPR 4 z$w_buff0_used && z$r_buff0_thd4 || z$w_buff1_used && z$r_buff1_thd4 ? (_Bool)0 : z$r_buff1_thd4 [L826] 4 z$r_buff1_thd4 = z$w_buff0_used && z$r_buff0_thd4 || z$w_buff1_used && z$r_buff1_thd4 ? (_Bool)0 : z$r_buff1_thd4 [L758] 1 __unbuffered_cnt = __unbuffered_cnt + 1 [L760] 1 return 0; [L773] 2 __unbuffered_cnt = __unbuffered_cnt + 1 [L775] 2 return 0; [L829] 4 __unbuffered_cnt = __unbuffered_cnt + 1 [L831] 4 return 0; [L793] 3 __unbuffered_cnt = __unbuffered_cnt + 1 [L795] 3 return 0; [L853] 0 main$tmp_guard0 = __unbuffered_cnt == 4 [L3] COND FALSE 0 !(!cond) [L857] EXPR 0 z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd0 ? z$w_buff1 : z) [L857] EXPR 0 z$w_buff1_used && z$r_buff1_thd0 ? z$w_buff1 : z [L857] EXPR 0 z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd0 ? z$w_buff1 : z) [L857] 0 z = z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd0 ? z$w_buff1 : z) [L858] EXPR 0 z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$w_buff0_used [L858] 0 z$w_buff0_used = z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$w_buff0_used [L859] EXPR 0 z$w_buff0_used && z$r_buff0_thd0 || z$w_buff1_used && z$r_buff1_thd0 ? (_Bool)0 : z$w_buff1_used [L859] 0 z$w_buff1_used = z$w_buff0_used && z$r_buff0_thd0 || z$w_buff1_used && z$r_buff1_thd0 ? (_Bool)0 : z$w_buff1_used [L860] EXPR 0 z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$r_buff0_thd0 [L860] 0 z$r_buff0_thd0 = z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$r_buff0_thd0 [L861] EXPR 0 z$w_buff0_used && z$r_buff0_thd0 || z$w_buff1_used && z$r_buff1_thd0 ? (_Bool)0 : z$r_buff1_thd0 [L861] 0 z$r_buff1_thd0 = z$w_buff0_used && z$r_buff0_thd0 || z$w_buff1_used && z$r_buff1_thd0 ? (_Bool)0 : z$r_buff1_thd0 [L864] 0 weak$$choice0 = __VERIFIER_nondet_bool() [L865] 0 weak$$choice2 = __VERIFIER_nondet_bool() [L866] 0 z$flush_delayed = weak$$choice2 [L867] 0 z$mem_tmp = z [L868] EXPR 0 !z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z : (z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff0 : z$w_buff1) [L868] 0 z = !z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z : (z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff0 : z$w_buff1) [L869] EXPR 0 weak$$choice2 ? z$w_buff0 : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$w_buff0 : (z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff0 : z$w_buff0)) [L869] 0 z$w_buff0 = weak$$choice2 ? z$w_buff0 : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$w_buff0 : (z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff0 : z$w_buff0)) [L870] EXPR 0 weak$$choice2 ? z$w_buff1 : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$w_buff1 : (z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff1 : z$w_buff1)) [L870] 0 z$w_buff1 = weak$$choice2 ? z$w_buff1 : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$w_buff1 : (z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff1 : z$w_buff1)) [L871] EXPR 0 weak$$choice2 ? z$w_buff0_used : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$w_buff0_used : (z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$w_buff0_used)) [L871] 0 z$w_buff0_used = weak$$choice2 ? z$w_buff0_used : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$w_buff0_used : (z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$w_buff0_used)) [L872] EXPR 0 weak$$choice2 ? z$w_buff1_used : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$w_buff1_used : (z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L872] 0 z$w_buff1_used = weak$$choice2 ? z$w_buff1_used : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$w_buff1_used : (z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L873] EXPR 0 weak$$choice2 ? z$r_buff0_thd0 : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$r_buff0_thd0 : (z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$r_buff0_thd0)) [L873] 0 z$r_buff0_thd0 = weak$$choice2 ? z$r_buff0_thd0 : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$r_buff0_thd0 : (z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$r_buff0_thd0)) [L874] EXPR 0 weak$$choice2 ? z$r_buff1_thd0 : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$r_buff1_thd0 : (z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L874] 0 z$r_buff1_thd0 = weak$$choice2 ? z$r_buff1_thd0 : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$r_buff1_thd0 : (z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L875] 0 main$tmp_guard1 = !(x == 2 && y == 2 && z == 2 && __unbuffered_p3_EAX == 1 && __unbuffered_p3_EBX == 0) [L876] EXPR 0 z$flush_delayed ? z$mem_tmp : z [L876] 0 z = z$flush_delayed ? z$mem_tmp : z [L877] 0 z$flush_delayed = (_Bool)0 [L18] COND TRUE 0 !expression [L18] 0 reach_error() VAL [\result={0:0}, \result={0:0}, \result={0:0}, __unbuffered_cnt=4, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=50, weak$$choice2=255, x=2, y=2, z=2, z$flush_delayed=0, z$mem_tmp=2, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 115 locations, 2 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 7.9ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: UNSAFE, OverallTime: 31347.9ms, OverallIterations: 20, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 4165.4ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 8093.6ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 74 SDtfs, 62 SDslu, 38 SDs, 0 SdLazy, 479 SolverSat, 144 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 558.9ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 85 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 561.1ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=788occurred in iteration=16, InterpolantAutomatonStates: 93, 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: 59.4ms SsaConstructionTime, 612.4ms SatisfiabilityAnalysisTime, 1244.7ms InterpolantComputationTime, 343 NumberOfCodeBlocks, 343 NumberOfCodeBlocksAsserted, 20 NumberOfCheckSat, 299 ConstructedInterpolants, 0 QuantifiedInterpolants, 1647 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 19 InterpolantComputations, 19 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...