/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-SemanticLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/mix044_pso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-d5b4239aa45c8d22a30959944f2ef622f7386a6d-d5b4239 [2021-03-24 19:40:23,158 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-24 19:40:23,159 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-24 19:40:23,189 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-03-24 19:40:23,206 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-24 19:40:23,207 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-24 19:40:23,208 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-24 19:40:23,211 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-24 19:40:23,211 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-24 19:40:23,212 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-24 19:40:23,212 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-24 19:40:23,213 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-24 19:40:23,214 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-24 19:40:23,217 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-24 19:40:23,218 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-24 19:40:23,219 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-24 19:40:23,224 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-03-24 19:40:23,231 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-24 19:40:23,231 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-24 19:40:23,232 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-24 19:40:23,235 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-SemanticLbe.epf [2021-03-24 19:40:23,260 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-24 19:40:23,260 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-24 19:40:23,263 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-24 19:40:23,263 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-24 19:40:23,263 INFO L138 SettingsManager]: * Use SBE=true [2021-03-24 19:40:23,263 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-24 19:40:23,263 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-24 19:40:23,263 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-24 19:40:23,263 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-24 19:40:23,264 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-24 19:40:23,264 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-24 19:40:23,264 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-24 19:40:23,264 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-24 19:40:23,264 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-24 19:40:23,265 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-24 19:40:23,265 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-24 19:40:23,265 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-24 19:40:23,265 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-24 19:40:23,265 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-24 19:40:23,265 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-24 19:40:23,265 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-24 19:40:23,265 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-24 19:40:23,265 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-24 19:40:23,265 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-24 19:40:23,265 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-24 19:40:23,266 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-24 19:40:23,266 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-24 19:40:23,266 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-03-24 19:40:23,266 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-24 19:40:23,562 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-24 19:40:23,594 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-24 19:40:23,595 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-24 19:40:23,596 INFO L271 PluginConnector]: Initializing CDTParser... [2021-03-24 19:40:23,599 INFO L275 PluginConnector]: CDTParser initialized [2021-03-24 19:40:23,599 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/mix044_pso.opt.i [2021-03-24 19:40:23,661 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1a48e83d0/86dc84a624d845c19889ae7fd972cdce/FLAG9c0ec044b [2021-03-24 19:40:24,112 INFO L306 CDTParser]: Found 1 translation units. [2021-03-24 19:40:24,112 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix044_pso.opt.i [2021-03-24 19:40:24,125 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1a48e83d0/86dc84a624d845c19889ae7fd972cdce/FLAG9c0ec044b [2021-03-24 19:40:24,137 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1a48e83d0/86dc84a624d845c19889ae7fd972cdce [2021-03-24 19:40:24,139 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-24 19:40:24,141 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-03-24 19:40:24,143 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-03-24 19:40:24,143 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-03-24 19:40:24,145 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-03-24 19:40:24,146 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.03 07:40:24" (1/1) ... [2021-03-24 19:40:24,147 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@14746a52 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 07:40:24, skipping insertion in model container [2021-03-24 19:40:24,147 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.03 07:40:24" (1/1) ... [2021-03-24 19:40:24,153 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-03-24 19:40:24,192 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-03-24 19:40:24,350 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/mix044_pso.opt.i[948,961] [2021-03-24 19:40:24,445 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-24 19:40:24,451 INFO L203 MainTranslator]: Completed pre-run [2021-03-24 19:40:24,459 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/mix044_pso.opt.i[948,961] [2021-03-24 19:40:24,488 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-24 19:40:24,529 INFO L208 MainTranslator]: Completed translation [2021-03-24 19:40:24,530 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 07:40:24 WrapperNode [2021-03-24 19:40:24,530 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-03-24 19:40:24,531 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-24 19:40:24,531 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-24 19:40:24,531 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-24 19:40:24,536 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 07:40:24" (1/1) ... [2021-03-24 19:40:24,547 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 07:40:24" (1/1) ... [2021-03-24 19:40:24,567 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-24 19:40:24,567 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-24 19:40:24,567 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-24 19:40:24,567 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-24 19:40:24,573 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 07:40:24" (1/1) ... [2021-03-24 19:40:24,573 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 07:40:24" (1/1) ... [2021-03-24 19:40:24,576 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 07:40:24" (1/1) ... [2021-03-24 19:40:24,576 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 07:40:24" (1/1) ... [2021-03-24 19:40:24,582 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 07:40:24" (1/1) ... [2021-03-24 19:40:24,584 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 07:40:24" (1/1) ... [2021-03-24 19:40:24,586 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 07:40:24" (1/1) ... [2021-03-24 19:40:24,588 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-24 19:40:24,589 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-24 19:40:24,589 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-24 19:40:24,589 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-24 19:40:24,590 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 07:40:24" (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 [2021-03-24 19:40:24,636 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-03-24 19:40:24,637 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-03-24 19:40:24,637 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-03-24 19:40:24,638 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-03-24 19:40:24,638 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-03-24 19:40:24,638 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-03-24 19:40:24,639 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-03-24 19:40:24,639 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-03-24 19:40:24,639 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-03-24 19:40:24,639 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-03-24 19:40:24,639 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2021-03-24 19:40:24,640 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2021-03-24 19:40:24,640 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-03-24 19:40:24,640 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-03-24 19:40:24,640 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-24 19:40:24,640 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-24 19:40:24,641 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-03-24 19:40:25,967 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-24 19:40:25,967 INFO L299 CfgBuilder]: Removed 10 assume(true) statements. [2021-03-24 19:40:25,968 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.03 07:40:25 BoogieIcfgContainer [2021-03-24 19:40:25,968 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-24 19:40:25,969 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-24 19:40:25,970 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-24 19:40:25,971 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-24 19:40:25,971 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.03 07:40:24" (1/3) ... [2021-03-24 19:40:25,972 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7cb51c24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.03 07:40:25, skipping insertion in model container [2021-03-24 19:40:25,972 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 07:40:24" (2/3) ... [2021-03-24 19:40:25,972 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7cb51c24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.03 07:40:25, skipping insertion in model container [2021-03-24 19:40:25,972 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.03 07:40:25" (3/3) ... [2021-03-24 19:40:25,973 INFO L111 eAbstractionObserver]: Analyzing ICFG mix044_pso.opt.i [2021-03-24 19:40:25,977 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-24 19:40:25,979 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2021-03-24 19:40:25,980 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-24 19:40:26,001 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:40:26,001 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:40:26,001 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:40:26,001 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:40:26,001 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:40:26,001 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:40:26,001 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:40:26,001 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:40:26,002 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:40:26,002 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:40:26,002 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:40:26,002 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:40:26,002 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:40:26,002 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:40:26,002 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:40:26,002 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:40:26,002 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:40:26,002 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:40:26,003 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:40:26,003 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:40:26,003 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:40:26,003 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:40:26,003 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:40:26,003 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:40:26,003 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:40:26,003 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:40:26,003 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:40:26,003 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:40:26,003 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:40:26,004 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:40:26,004 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:40:26,004 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:40:26,004 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:40:26,004 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:40:26,004 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:40:26,004 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:40:26,004 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:40:26,004 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:40:26,004 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:40:26,005 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:40:26,005 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:40:26,005 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:40:26,005 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:40:26,005 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:40:26,005 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:40:26,005 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:40:26,005 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:40:26,005 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:40:26,006 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:40:26,006 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:40:26,006 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:40:26,006 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:40:26,006 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:40:26,006 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:40:26,006 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:40:26,006 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:40:26,006 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:40:26,006 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:40:26,006 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork3___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:40:26,007 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:40:26,007 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork3___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:40:26,007 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:40:26,007 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork3___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:40:26,007 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:40:26,007 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork3___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:40:26,007 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:40:26,007 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:40:26,007 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:40:26,007 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:40:26,007 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:40:26,008 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:40:26,008 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:40:26,008 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:40:26,008 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:40:26,008 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:40:26,008 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:40:26,008 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:40:26,008 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:40:26,008 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:40:26,008 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:40:26,009 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:40:26,009 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:40:26,009 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:40:26,009 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:40:26,010 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:40:26,010 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:40:26,010 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:40:26,010 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:40:26,011 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:40:26,012 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:40:26,012 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:40:26,012 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:40:26,012 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:40:26,013 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:40:26,013 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:40:26,013 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:40:26,013 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:40:26,013 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:40:26,013 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:40:26,013 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:40:26,013 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:40:26,013 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:40:26,014 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork3___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:40:26,014 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:40:26,014 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:40:26,014 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:40:26,014 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:40:26,014 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:40:26,015 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:40:26,015 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:40:26,015 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:40:26,015 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:40:26,015 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:40:26,015 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:40:26,016 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-24 19:40:26,027 INFO L253 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2021-03-24 19:40:26,039 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-24 19:40:26,039 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-24 19:40:26,039 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-24 19:40:26,039 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-24 19:40:26,039 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-24 19:40:26,039 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-24 19:40:26,040 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-24 19:40:26,040 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-24 19:40:26,046 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 128 places, 117 transitions, 254 flow [2021-03-24 19:40:26,071 INFO L129 PetriNetUnfolder]: 2/113 cut-off events. [2021-03-24 19:40:26,071 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-24 19:40:26,074 INFO L84 FinitePrefix]: Finished finitePrefix Result has 126 conditions, 113 events. 2/113 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 87 event pairs, 0 based on Foata normal form. 0/109 useless extension candidates. Maximal degree in co-relation 76. Up to 2 conditions per place. [2021-03-24 19:40:26,074 INFO L82 GeneralOperation]: Start removeDead. Operand has 128 places, 117 transitions, 254 flow [2021-03-24 19:40:26,076 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 124 places, 113 transitions, 238 flow [2021-03-24 19:40:26,077 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-24 19:40:26,084 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 124 places, 113 transitions, 238 flow [2021-03-24 19:40:26,086 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 124 places, 113 transitions, 238 flow [2021-03-24 19:40:26,087 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 124 places, 113 transitions, 238 flow [2021-03-24 19:40:26,100 INFO L129 PetriNetUnfolder]: 2/113 cut-off events. [2021-03-24 19:40:26,100 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-24 19:40:26,100 INFO L84 FinitePrefix]: Finished finitePrefix Result has 126 conditions, 113 events. 2/113 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 82 event pairs, 0 based on Foata normal form. 0/109 useless extension candidates. Maximal degree in co-relation 76. Up to 2 conditions per place. [2021-03-24 19:40:26,102 INFO L142 LiptonReduction]: Number of co-enabled transitions 2598 [2021-03-24 19:40:27,195 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 58 [2021-03-24 19:40:27,567 WARN L205 SmtUtils]: Spent 317.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 84 [2021-03-24 19:40:27,685 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 81 [2021-03-24 19:40:28,300 WARN L205 SmtUtils]: Spent 588.00 ms on a formula simplification. DAG size of input: 230 DAG size of output: 190 [2021-03-24 19:40:28,555 WARN L205 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2021-03-24 19:40:29,758 WARN L205 SmtUtils]: Spent 1.20 s on a formula simplification. DAG size of input: 314 DAG size of output: 270 [2021-03-24 19:40:30,320 WARN L205 SmtUtils]: Spent 560.00 ms on a formula simplification that was a NOOP. DAG size: 267 [2021-03-24 19:40:31,450 WARN L205 SmtUtils]: Spent 312.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2021-03-24 19:40:31,733 WARN L205 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2021-03-24 19:40:32,842 WARN L205 SmtUtils]: Spent 1.11 s on a formula simplification. DAG size of input: 269 DAG size of output: 268 [2021-03-24 19:40:33,427 WARN L205 SmtUtils]: Spent 583.00 ms on a formula simplification that was a NOOP. DAG size: 268 [2021-03-24 19:40:33,591 INFO L154 LiptonReduction]: Checked pairs total: 4166 [2021-03-24 19:40:33,591 INFO L156 LiptonReduction]: Total number of compositions: 74 [2021-03-24 19:40:33,603 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 7526 [2021-03-24 19:40:33,636 INFO L129 PetriNetUnfolder]: 0/32 cut-off events. [2021-03-24 19:40:33,636 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-24 19:40:33,638 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 19:40:33,639 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] [2021-03-24 19:40:33,640 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]=== [2021-03-24 19:40:33,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 19:40:33,643 INFO L82 PathProgramCache]: Analyzing trace with hash 1459371111, now seen corresponding path program 1 times [2021-03-24 19:40:33,649 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 19:40:33,649 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1213255285] [2021-03-24 19:40:33,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 19:40:33,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 19:40:33,872 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:40:33,873 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 19:40:33,874 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:40:33,874 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 19:40:33,878 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 19:40:33,879 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1213255285] [2021-03-24 19:40:33,879 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 19:40:33,879 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-24 19:40:33,880 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [63952398] [2021-03-24 19:40:33,885 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-24 19:40:33,886 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 19:40:33,892 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-24 19:40:33,893 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-24 19:40:33,895 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 170 out of 191 [2021-03-24 19:40:33,899 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 48 transitions, 108 flow. Second operand has 3 states, 3 states have (on average 170.66666666666666) internal successors, (512), 3 states have internal predecessors, (512), 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) [2021-03-24 19:40:33,900 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 19:40:33,900 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 170 of 191 [2021-03-24 19:40:33,900 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 19:40:33,956 INFO L129 PetriNetUnfolder]: 23/111 cut-off events. [2021-03-24 19:40:33,956 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-24 19:40:33,957 INFO L84 FinitePrefix]: Finished finitePrefix Result has 172 conditions, 111 events. 23/111 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 394 event pairs, 3 based on Foata normal form. 6/110 useless extension candidates. Maximal degree in co-relation 148. Up to 37 conditions per place. [2021-03-24 19:40:33,958 INFO L132 encePairwiseOnDemand]: 187/191 looper letters, 7 selfloop transitions, 2 changer transitions 5/49 dead transitions. [2021-03-24 19:40:33,958 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 49 transitions, 132 flow [2021-03-24 19:40:33,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-24 19:40:33,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-24 19:40:33,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 524 transitions. [2021-03-24 19:40:33,972 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9144851657940664 [2021-03-24 19:40:33,972 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 524 transitions. [2021-03-24 19:40:33,973 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 524 transitions. [2021-03-24 19:40:33,975 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 19:40:33,976 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 524 transitions. [2021-03-24 19:40:33,980 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 174.66666666666666) internal successors, (524), 3 states have internal predecessors, (524), 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) [2021-03-24 19:40:33,987 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) [2021-03-24 19:40:33,987 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) [2021-03-24 19:40:33,988 INFO L185 Difference]: Start difference. First operand has 60 places, 48 transitions, 108 flow. Second operand 3 states and 524 transitions. [2021-03-24 19:40:33,989 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 49 transitions, 132 flow [2021-03-24 19:40:33,990 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 49 transitions, 128 flow, removed 0 selfloop flow, removed 4 redundant places. [2021-03-24 19:40:33,992 INFO L241 Difference]: Finished difference. Result has 56 places, 41 transitions, 94 flow [2021-03-24 19:40:33,993 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=191, PETRI_DIFFERENCE_MINUEND_FLOW=98, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=94, PETRI_PLACES=56, PETRI_TRANSITIONS=41} [2021-03-24 19:40:33,993 INFO L343 CegarLoopForPetriNet]: 60 programPoint places, -4 predicate places. [2021-03-24 19:40:33,993 INFO L480 AbstractCegarLoop]: Abstraction has has 56 places, 41 transitions, 94 flow [2021-03-24 19:40:33,994 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 170.66666666666666) internal successors, (512), 3 states have internal predecessors, (512), 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) [2021-03-24 19:40:33,994 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 19:40:33,994 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] [2021-03-24 19:40:33,994 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-24 19:40:33,994 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]=== [2021-03-24 19:40:33,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 19:40:33,996 INFO L82 PathProgramCache]: Analyzing trace with hash -1826671133, now seen corresponding path program 1 times [2021-03-24 19:40:33,996 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 19:40:33,996 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1435043715] [2021-03-24 19:40:33,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 19:40:34,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 19:40:34,119 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:40:34,119 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 19:40:34,120 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:40:34,120 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 19:40:34,127 INFO L142 QuantifierPusher]: treesize reduction 9, result has 30.8 percent of original size [2021-03-24 19:40:34,128 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-24 19:40:34,133 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 19:40:34,133 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1435043715] [2021-03-24 19:40:34,133 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 19:40:34,133 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-24 19:40:34,134 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1180004137] [2021-03-24 19:40:34,135 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-24 19:40:34,136 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 19:40:34,143 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-24 19:40:34,143 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-24 19:40:34,145 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 171 out of 191 [2021-03-24 19:40:34,146 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 41 transitions, 94 flow. Second operand has 4 states, 4 states have (on average 171.75) internal successors, (687), 4 states have internal predecessors, (687), 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) [2021-03-24 19:40:34,146 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 19:40:34,146 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 171 of 191 [2021-03-24 19:40:34,146 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 19:40:34,186 INFO L129 PetriNetUnfolder]: 0/46 cut-off events. [2021-03-24 19:40:34,186 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-24 19:40:34,187 INFO L84 FinitePrefix]: Finished finitePrefix Result has 65 conditions, 46 events. 0/46 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 51 event pairs, 0 based on Foata normal form. 2/47 useless extension candidates. Maximal degree in co-relation 0. Up to 4 conditions per place. [2021-03-24 19:40:34,187 INFO L132 encePairwiseOnDemand]: 187/191 looper letters, 2 selfloop transitions, 2 changer transitions 3/43 dead transitions. [2021-03-24 19:40:34,187 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 43 transitions, 110 flow [2021-03-24 19:40:34,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-24 19:40:34,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-24 19:40:34,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 863 transitions. [2021-03-24 19:40:34,189 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9036649214659686 [2021-03-24 19:40:34,189 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 863 transitions. [2021-03-24 19:40:34,189 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 863 transitions. [2021-03-24 19:40:34,189 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 19:40:34,189 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 863 transitions. [2021-03-24 19:40:34,190 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 172.6) internal successors, (863), 5 states have internal predecessors, (863), 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) [2021-03-24 19:40:34,192 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 191.0) internal successors, (1146), 6 states have internal predecessors, (1146), 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) [2021-03-24 19:40:34,193 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 191.0) internal successors, (1146), 6 states have internal predecessors, (1146), 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) [2021-03-24 19:40:34,193 INFO L185 Difference]: Start difference. First operand has 56 places, 41 transitions, 94 flow. Second operand 5 states and 863 transitions. [2021-03-24 19:40:34,193 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 43 transitions, 110 flow [2021-03-24 19:40:34,193 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 43 transitions, 106 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-03-24 19:40:34,195 INFO L241 Difference]: Finished difference. Result has 57 places, 40 transitions, 100 flow [2021-03-24 19:40:34,195 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=191, PETRI_DIFFERENCE_MINUEND_FLOW=90, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=100, PETRI_PLACES=57, PETRI_TRANSITIONS=40} [2021-03-24 19:40:34,195 INFO L343 CegarLoopForPetriNet]: 60 programPoint places, -3 predicate places. [2021-03-24 19:40:34,196 INFO L480 AbstractCegarLoop]: Abstraction has has 57 places, 40 transitions, 100 flow [2021-03-24 19:40:34,196 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 171.75) internal successors, (687), 4 states have internal predecessors, (687), 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) [2021-03-24 19:40:34,196 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 19:40:34,196 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, 1, 1] [2021-03-24 19:40:34,196 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-24 19:40:34,197 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]=== [2021-03-24 19:40:34,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 19:40:34,197 INFO L82 PathProgramCache]: Analyzing trace with hash -307635112, now seen corresponding path program 1 times [2021-03-24 19:40:34,197 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 19:40:34,197 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1687722614] [2021-03-24 19:40:34,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 19:40:34,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 19:40:34,261 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:40:34,261 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 19:40:34,262 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:40:34,262 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 19:40:34,265 INFO L142 QuantifierPusher]: treesize reduction 9, result has 30.8 percent of original size [2021-03-24 19:40:34,266 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-24 19:40:34,269 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 19:40:34,269 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1687722614] [2021-03-24 19:40:34,270 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 19:40:34,270 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-24 19:40:34,270 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1928338897] [2021-03-24 19:40:34,270 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-24 19:40:34,271 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 19:40:34,271 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-24 19:40:34,271 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-24 19:40:34,272 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 171 out of 191 [2021-03-24 19:40:34,273 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 40 transitions, 100 flow. Second operand has 4 states, 4 states have (on average 171.75) internal successors, (687), 4 states have internal predecessors, (687), 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) [2021-03-24 19:40:34,273 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 19:40:34,273 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 171 of 191 [2021-03-24 19:40:34,273 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 19:40:34,298 INFO L129 PetriNetUnfolder]: 6/63 cut-off events. [2021-03-24 19:40:34,299 INFO L130 PetriNetUnfolder]: For 20/20 co-relation queries the response was YES. [2021-03-24 19:40:34,299 INFO L84 FinitePrefix]: Finished finitePrefix Result has 110 conditions, 63 events. 6/63 cut-off events. For 20/20 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 129 event pairs, 2 based on Foata normal form. 4/65 useless extension candidates. Maximal degree in co-relation 88. Up to 15 conditions per place. [2021-03-24 19:40:34,299 INFO L132 encePairwiseOnDemand]: 186/191 looper letters, 4 selfloop transitions, 3 changer transitions 5/47 dead transitions. [2021-03-24 19:40:34,299 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 47 transitions, 140 flow [2021-03-24 19:40:34,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-24 19:40:34,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-24 19:40:34,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 869 transitions. [2021-03-24 19:40:34,301 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9099476439790576 [2021-03-24 19:40:34,301 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 869 transitions. [2021-03-24 19:40:34,301 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 869 transitions. [2021-03-24 19:40:34,302 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 19:40:34,302 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 869 transitions. [2021-03-24 19:40:34,303 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 173.8) internal successors, (869), 5 states have internal predecessors, (869), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:40:34,304 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 191.0) internal successors, (1146), 6 states have internal predecessors, (1146), 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) [2021-03-24 19:40:34,305 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 191.0) internal successors, (1146), 6 states have internal predecessors, (1146), 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) [2021-03-24 19:40:34,305 INFO L185 Difference]: Start difference. First operand has 57 places, 40 transitions, 100 flow. Second operand 5 states and 869 transitions. [2021-03-24 19:40:34,305 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 47 transitions, 140 flow [2021-03-24 19:40:34,305 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 47 transitions, 132 flow, removed 2 selfloop flow, removed 4 redundant places. [2021-03-24 19:40:34,306 INFO L241 Difference]: Finished difference. Result has 57 places, 42 transitions, 119 flow [2021-03-24 19:40:34,306 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=191, PETRI_DIFFERENCE_MINUEND_FLOW=92, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=119, PETRI_PLACES=57, PETRI_TRANSITIONS=42} [2021-03-24 19:40:34,307 INFO L343 CegarLoopForPetriNet]: 60 programPoint places, -3 predicate places. [2021-03-24 19:40:34,307 INFO L480 AbstractCegarLoop]: Abstraction has has 57 places, 42 transitions, 119 flow [2021-03-24 19:40:34,307 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 171.75) internal successors, (687), 4 states have internal predecessors, (687), 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) [2021-03-24 19:40:34,307 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 19:40:34,307 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, 1, 1, 1] [2021-03-24 19:40:34,308 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-03-24 19:40:34,308 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]=== [2021-03-24 19:40:34,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 19:40:34,309 INFO L82 PathProgramCache]: Analyzing trace with hash -2021335474, now seen corresponding path program 1 times [2021-03-24 19:40:34,309 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 19:40:34,309 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [431980599] [2021-03-24 19:40:34,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 19:40:34,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 19:40:34,401 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:40:34,401 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 19:40:34,404 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:40:34,404 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 19:40:34,407 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:40:34,408 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 19:40:34,413 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:40:34,413 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-24 19:40:34,420 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:40:34,421 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 19:40:34,429 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:40:34,429 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-24 19:40:34,435 INFO L142 QuantifierPusher]: treesize reduction 10, result has 81.5 percent of original size [2021-03-24 19:40:34,436 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-24 19:40:34,457 INFO L142 QuantifierPusher]: treesize reduction 9, result has 30.8 percent of original size [2021-03-24 19:40:34,458 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-24 19:40:34,462 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 19:40:34,462 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [431980599] [2021-03-24 19:40:34,462 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 19:40:34,462 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-24 19:40:34,463 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2023991689] [2021-03-24 19:40:34,463 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-24 19:40:34,463 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 19:40:34,464 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-24 19:40:34,464 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2021-03-24 19:40:34,465 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 156 out of 191 [2021-03-24 19:40:34,466 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 42 transitions, 119 flow. Second operand has 8 states, 8 states have (on average 157.0) internal successors, (1256), 8 states have internal predecessors, (1256), 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) [2021-03-24 19:40:34,466 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 19:40:34,466 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 156 of 191 [2021-03-24 19:40:34,466 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 19:40:34,581 INFO L129 PetriNetUnfolder]: 68/198 cut-off events. [2021-03-24 19:40:34,582 INFO L130 PetriNetUnfolder]: For 142/142 co-relation queries the response was YES. [2021-03-24 19:40:34,585 INFO L84 FinitePrefix]: Finished finitePrefix Result has 447 conditions, 198 events. 68/198 cut-off events. For 142/142 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 809 event pairs, 35 based on Foata normal form. 13/199 useless extension candidates. Maximal degree in co-relation 418. Up to 85 conditions per place. [2021-03-24 19:40:34,588 INFO L132 encePairwiseOnDemand]: 182/191 looper letters, 9 selfloop transitions, 8 changer transitions 6/54 dead transitions. [2021-03-24 19:40:34,588 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 54 transitions, 193 flow [2021-03-24 19:40:34,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-24 19:40:34,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-24 19:40:34,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1429 transitions. [2021-03-24 19:40:34,593 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8312972658522396 [2021-03-24 19:40:34,593 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1429 transitions. [2021-03-24 19:40:34,594 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1429 transitions. [2021-03-24 19:40:34,594 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 19:40:34,594 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1429 transitions. [2021-03-24 19:40:34,597 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 158.77777777777777) internal successors, (1429), 9 states have internal predecessors, (1429), 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) [2021-03-24 19:40:34,599 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 191.0) internal successors, (1910), 10 states have internal predecessors, (1910), 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) [2021-03-24 19:40:34,600 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 191.0) internal successors, (1910), 10 states have internal predecessors, (1910), 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) [2021-03-24 19:40:34,600 INFO L185 Difference]: Start difference. First operand has 57 places, 42 transitions, 119 flow. Second operand 9 states and 1429 transitions. [2021-03-24 19:40:34,600 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 54 transitions, 193 flow [2021-03-24 19:40:34,603 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 54 transitions, 188 flow, removed 1 selfloop flow, removed 2 redundant places. [2021-03-24 19:40:34,604 INFO L241 Difference]: Finished difference. Result has 65 places, 46 transitions, 158 flow [2021-03-24 19:40:34,604 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=191, PETRI_DIFFERENCE_MINUEND_FLOW=114, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=158, PETRI_PLACES=65, PETRI_TRANSITIONS=46} [2021-03-24 19:40:34,604 INFO L343 CegarLoopForPetriNet]: 60 programPoint places, 5 predicate places. [2021-03-24 19:40:34,604 INFO L480 AbstractCegarLoop]: Abstraction has has 65 places, 46 transitions, 158 flow [2021-03-24 19:40:34,605 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 157.0) internal successors, (1256), 8 states have internal predecessors, (1256), 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) [2021-03-24 19:40:34,605 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 19:40:34,605 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, 1, 1, 1, 1, 1] [2021-03-24 19:40:34,605 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-03-24 19:40:34,605 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]=== [2021-03-24 19:40:34,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 19:40:34,605 INFO L82 PathProgramCache]: Analyzing trace with hash -111639782, now seen corresponding path program 1 times [2021-03-24 19:40:34,605 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 19:40:34,606 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [656565965] [2021-03-24 19:40:34,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 19:40:34,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 19:40:34,677 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:40:34,678 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 19:40:34,678 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:40:34,679 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 19:40:34,685 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:40:34,685 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 19:40:34,692 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:40:34,693 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 19:40:34,695 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:40:34,697 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-24 19:40:34,706 INFO L142 QuantifierPusher]: treesize reduction 10, result has 81.5 percent of original size [2021-03-24 19:40:34,707 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-24 19:40:34,721 INFO L142 QuantifierPusher]: treesize reduction 9, result has 30.8 percent of original size [2021-03-24 19:40:34,721 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-24 19:40:34,725 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 19:40:34,725 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [656565965] [2021-03-24 19:40:34,725 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 19:40:34,725 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-24 19:40:34,725 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [464341685] [2021-03-24 19:40:34,726 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-24 19:40:34,726 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 19:40:34,726 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-24 19:40:34,726 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-03-24 19:40:34,727 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 157 out of 191 [2021-03-24 19:40:34,728 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 46 transitions, 158 flow. Second operand has 7 states, 7 states have (on average 158.28571428571428) internal successors, (1108), 7 states have internal predecessors, (1108), 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) [2021-03-24 19:40:34,728 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 19:40:34,728 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 157 of 191 [2021-03-24 19:40:34,728 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 19:40:34,853 INFO L129 PetriNetUnfolder]: 70/201 cut-off events. [2021-03-24 19:40:34,853 INFO L130 PetriNetUnfolder]: For 246/248 co-relation queries the response was YES. [2021-03-24 19:40:34,854 INFO L84 FinitePrefix]: Finished finitePrefix Result has 558 conditions, 201 events. 70/201 cut-off events. For 246/248 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 811 event pairs, 17 based on Foata normal form. 9/198 useless extension candidates. Maximal degree in co-relation 522. Up to 85 conditions per place. [2021-03-24 19:40:34,857 INFO L132 encePairwiseOnDemand]: 182/191 looper letters, 13 selfloop transitions, 10 changer transitions 5/59 dead transitions. [2021-03-24 19:40:34,857 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 59 transitions, 260 flow [2021-03-24 19:40:34,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-24 19:40:34,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-24 19:40:34,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1283 transitions. [2021-03-24 19:40:34,859 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8396596858638743 [2021-03-24 19:40:34,859 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1283 transitions. [2021-03-24 19:40:34,859 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1283 transitions. [2021-03-24 19:40:34,860 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 19:40:34,860 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1283 transitions. [2021-03-24 19:40:34,862 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 160.375) internal successors, (1283), 8 states have internal predecessors, (1283), 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) [2021-03-24 19:40:34,863 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 191.0) internal successors, (1719), 9 states have internal predecessors, (1719), 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) [2021-03-24 19:40:34,864 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 191.0) internal successors, (1719), 9 states have internal predecessors, (1719), 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) [2021-03-24 19:40:34,864 INFO L185 Difference]: Start difference. First operand has 65 places, 46 transitions, 158 flow. Second operand 8 states and 1283 transitions. [2021-03-24 19:40:34,864 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 59 transitions, 260 flow [2021-03-24 19:40:34,867 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 59 transitions, 252 flow, removed 1 selfloop flow, removed 4 redundant places. [2021-03-24 19:40:34,868 INFO L241 Difference]: Finished difference. Result has 70 places, 51 transitions, 211 flow [2021-03-24 19:40:34,868 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=191, PETRI_DIFFERENCE_MINUEND_FLOW=150, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=211, PETRI_PLACES=70, PETRI_TRANSITIONS=51} [2021-03-24 19:40:34,868 INFO L343 CegarLoopForPetriNet]: 60 programPoint places, 10 predicate places. [2021-03-24 19:40:34,868 INFO L480 AbstractCegarLoop]: Abstraction has has 70 places, 51 transitions, 211 flow [2021-03-24 19:40:34,868 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 158.28571428571428) internal successors, (1108), 7 states have internal predecessors, (1108), 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) [2021-03-24 19:40:34,868 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 19:40:34,868 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, 1, 1, 1, 1, 1] [2021-03-24 19:40:34,869 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-03-24 19:40:34,869 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]=== [2021-03-24 19:40:34,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 19:40:34,869 INFO L82 PathProgramCache]: Analyzing trace with hash 1842465562, now seen corresponding path program 2 times [2021-03-24 19:40:34,869 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 19:40:34,869 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1697705441] [2021-03-24 19:40:34,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 19:40:34,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 19:40:34,936 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:40:34,936 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 19:40:34,936 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:40:34,937 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 19:40:34,939 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:40:34,939 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 19:40:34,944 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:40:34,944 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-24 19:40:34,950 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:40:34,951 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 19:40:34,959 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:40:34,959 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-24 19:40:34,973 INFO L142 QuantifierPusher]: treesize reduction 10, result has 84.1 percent of original size [2021-03-24 19:40:34,974 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-24 19:40:34,991 INFO L142 QuantifierPusher]: treesize reduction 9, result has 30.8 percent of original size [2021-03-24 19:40:34,992 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-24 19:40:34,996 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 19:40:34,996 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1697705441] [2021-03-24 19:40:34,996 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 19:40:34,996 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-24 19:40:34,996 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [208799433] [2021-03-24 19:40:34,997 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-24 19:40:34,997 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 19:40:34,997 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-24 19:40:34,998 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2021-03-24 19:40:34,998 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 157 out of 191 [2021-03-24 19:40:34,999 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 51 transitions, 211 flow. Second operand has 9 states, 9 states have (on average 158.0) internal successors, (1422), 9 states have internal predecessors, (1422), 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) [2021-03-24 19:40:34,999 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 19:40:34,999 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 157 of 191 [2021-03-24 19:40:35,000 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 19:40:35,115 INFO L129 PetriNetUnfolder]: 76/217 cut-off events. [2021-03-24 19:40:35,115 INFO L130 PetriNetUnfolder]: For 558/569 co-relation queries the response was YES. [2021-03-24 19:40:35,116 INFO L84 FinitePrefix]: Finished finitePrefix Result has 787 conditions, 217 events. 76/217 cut-off events. For 558/569 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 926 event pairs, 17 based on Foata normal form. 19/222 useless extension candidates. Maximal degree in co-relation 748. Up to 86 conditions per place. [2021-03-24 19:40:35,118 INFO L132 encePairwiseOnDemand]: 182/191 looper letters, 15 selfloop transitions, 11 changer transitions 5/62 dead transitions. [2021-03-24 19:40:35,118 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 62 transitions, 357 flow [2021-03-24 19:40:35,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-24 19:40:35,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-24 19:40:35,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1439 transitions. [2021-03-24 19:40:35,121 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8371146015125073 [2021-03-24 19:40:35,121 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1439 transitions. [2021-03-24 19:40:35,121 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1439 transitions. [2021-03-24 19:40:35,122 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 19:40:35,122 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1439 transitions. [2021-03-24 19:40:35,123 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 159.88888888888889) internal successors, (1439), 9 states have internal predecessors, (1439), 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) [2021-03-24 19:40:35,125 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 191.0) internal successors, (1910), 10 states have internal predecessors, (1910), 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) [2021-03-24 19:40:35,126 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 191.0) internal successors, (1910), 10 states have internal predecessors, (1910), 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) [2021-03-24 19:40:35,126 INFO L185 Difference]: Start difference. First operand has 70 places, 51 transitions, 211 flow. Second operand 9 states and 1439 transitions. [2021-03-24 19:40:35,126 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 62 transitions, 357 flow [2021-03-24 19:40:35,165 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 62 transitions, 342 flow, removed 4 selfloop flow, removed 3 redundant places. [2021-03-24 19:40:35,168 INFO L241 Difference]: Finished difference. Result has 76 places, 53 transitions, 256 flow [2021-03-24 19:40:35,168 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=191, PETRI_DIFFERENCE_MINUEND_FLOW=196, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=256, PETRI_PLACES=76, PETRI_TRANSITIONS=53} [2021-03-24 19:40:35,168 INFO L343 CegarLoopForPetriNet]: 60 programPoint places, 16 predicate places. [2021-03-24 19:40:35,168 INFO L480 AbstractCegarLoop]: Abstraction has has 76 places, 53 transitions, 256 flow [2021-03-24 19:40:35,169 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 158.0) internal successors, (1422), 9 states have internal predecessors, (1422), 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) [2021-03-24 19:40:35,169 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 19:40:35,169 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, 1, 1, 1, 1, 1] [2021-03-24 19:40:35,169 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-03-24 19:40:35,170 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]=== [2021-03-24 19:40:35,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 19:40:35,170 INFO L82 PathProgramCache]: Analyzing trace with hash -1551143250, now seen corresponding path program 3 times [2021-03-24 19:40:35,170 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 19:40:35,170 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1639157673] [2021-03-24 19:40:35,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 19:40:35,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 19:40:35,236 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:40:35,236 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 19:40:35,237 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:40:35,237 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 19:40:35,240 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:40:35,240 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 19:40:35,240 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:40:35,241 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 19:40:35,245 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:40:35,246 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-24 19:40:35,252 INFO L142 QuantifierPusher]: treesize reduction 9, result has 30.8 percent of original size [2021-03-24 19:40:35,252 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-24 19:40:35,255 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 19:40:35,256 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1639157673] [2021-03-24 19:40:35,256 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 19:40:35,256 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-24 19:40:35,257 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [454522816] [2021-03-24 19:40:35,258 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-24 19:40:35,258 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 19:40:35,258 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-24 19:40:35,258 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-03-24 19:40:35,259 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 161 out of 191 [2021-03-24 19:40:35,259 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 53 transitions, 256 flow. Second operand has 6 states, 6 states have (on average 162.33333333333334) internal successors, (974), 6 states have internal predecessors, (974), 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) [2021-03-24 19:40:35,259 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 19:40:35,259 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 161 of 191 [2021-03-24 19:40:35,260 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 19:40:35,336 INFO L129 PetriNetUnfolder]: 66/206 cut-off events. [2021-03-24 19:40:35,336 INFO L130 PetriNetUnfolder]: For 903/917 co-relation queries the response was YES. [2021-03-24 19:40:35,337 INFO L84 FinitePrefix]: Finished finitePrefix Result has 854 conditions, 206 events. 66/206 cut-off events. For 903/917 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 891 event pairs, 22 based on Foata normal form. 26/219 useless extension candidates. Maximal degree in co-relation 812. Up to 75 conditions per place. [2021-03-24 19:40:35,338 INFO L132 encePairwiseOnDemand]: 184/191 looper letters, 15 selfloop transitions, 12 changer transitions 5/64 dead transitions. [2021-03-24 19:40:35,338 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 64 transitions, 447 flow [2021-03-24 19:40:35,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-24 19:40:35,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-24 19:40:35,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1149 transitions. [2021-03-24 19:40:35,340 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8593866866118175 [2021-03-24 19:40:35,340 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1149 transitions. [2021-03-24 19:40:35,340 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1149 transitions. [2021-03-24 19:40:35,341 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 19:40:35,341 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1149 transitions. [2021-03-24 19:40:35,342 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 164.14285714285714) internal successors, (1149), 7 states have internal predecessors, (1149), 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) [2021-03-24 19:40:35,344 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 191.0) internal successors, (1528), 8 states have internal predecessors, (1528), 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) [2021-03-24 19:40:35,344 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 191.0) internal successors, (1528), 8 states have internal predecessors, (1528), 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) [2021-03-24 19:40:35,344 INFO L185 Difference]: Start difference. First operand has 76 places, 53 transitions, 256 flow. Second operand 7 states and 1149 transitions. [2021-03-24 19:40:35,344 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 64 transitions, 447 flow [2021-03-24 19:40:35,347 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 64 transitions, 356 flow, removed 37 selfloop flow, removed 8 redundant places. [2021-03-24 19:40:35,347 INFO L241 Difference]: Finished difference. Result has 75 places, 56 transitions, 284 flow [2021-03-24 19:40:35,348 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=191, PETRI_DIFFERENCE_MINUEND_FLOW=212, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=53, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=284, PETRI_PLACES=75, PETRI_TRANSITIONS=56} [2021-03-24 19:40:35,348 INFO L343 CegarLoopForPetriNet]: 60 programPoint places, 15 predicate places. [2021-03-24 19:40:35,348 INFO L480 AbstractCegarLoop]: Abstraction has has 75 places, 56 transitions, 284 flow [2021-03-24 19:40:35,349 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 162.33333333333334) internal successors, (974), 6 states have internal predecessors, (974), 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) [2021-03-24 19:40:35,349 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 19:40:35,349 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, 1, 1, 1, 1, 1] [2021-03-24 19:40:35,349 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-03-24 19:40:35,349 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]=== [2021-03-24 19:40:35,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 19:40:35,349 INFO L82 PathProgramCache]: Analyzing trace with hash -1179834417, now seen corresponding path program 1 times [2021-03-24 19:40:35,349 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 19:40:35,350 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1568278632] [2021-03-24 19:40:35,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 19:40:35,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 19:40:35,404 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:40:35,404 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 19:40:35,407 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-03-24 19:40:35,408 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-24 19:40:35,412 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:40:35,414 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 19:40:35,414 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 19:40:35,414 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1568278632] [2021-03-24 19:40:35,414 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 19:40:35,415 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-24 19:40:35,415 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1830871426] [2021-03-24 19:40:35,415 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-24 19:40:35,415 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 19:40:35,415 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-24 19:40:35,415 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-24 19:40:35,416 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 160 out of 191 [2021-03-24 19:40:35,416 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 56 transitions, 284 flow. Second operand has 4 states, 4 states have (on average 160.75) internal successors, (643), 4 states have internal predecessors, (643), 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) [2021-03-24 19:40:35,417 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 19:40:35,417 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 160 of 191 [2021-03-24 19:40:35,417 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 19:40:35,507 INFO L129 PetriNetUnfolder]: 355/718 cut-off events. [2021-03-24 19:40:35,507 INFO L130 PetriNetUnfolder]: For 1336/1385 co-relation queries the response was YES. [2021-03-24 19:40:35,510 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2225 conditions, 718 events. 355/718 cut-off events. For 1336/1385 co-relation queries the response was YES. Maximal size of possible extension queue 115. Compared 4477 event pairs, 141 based on Foata normal form. 72/667 useless extension candidates. Maximal degree in co-relation 2187. Up to 313 conditions per place. [2021-03-24 19:40:35,513 INFO L132 encePairwiseOnDemand]: 184/191 looper letters, 11 selfloop transitions, 10 changer transitions 0/69 dead transitions. [2021-03-24 19:40:35,513 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 69 transitions, 352 flow [2021-03-24 19:40:35,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-24 19:40:35,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-24 19:40:35,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 822 transitions. [2021-03-24 19:40:35,516 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8607329842931937 [2021-03-24 19:40:35,516 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 822 transitions. [2021-03-24 19:40:35,516 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 822 transitions. [2021-03-24 19:40:35,516 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 19:40:35,516 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 822 transitions. [2021-03-24 19:40:35,517 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 164.4) internal successors, (822), 5 states have internal predecessors, (822), 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) [2021-03-24 19:40:35,518 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 191.0) internal successors, (1146), 6 states have internal predecessors, (1146), 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) [2021-03-24 19:40:35,519 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 191.0) internal successors, (1146), 6 states have internal predecessors, (1146), 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) [2021-03-24 19:40:35,519 INFO L185 Difference]: Start difference. First operand has 75 places, 56 transitions, 284 flow. Second operand 5 states and 822 transitions. [2021-03-24 19:40:35,519 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 69 transitions, 352 flow [2021-03-24 19:40:35,522 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 69 transitions, 326 flow, removed 6 selfloop flow, removed 5 redundant places. [2021-03-24 19:40:35,523 INFO L241 Difference]: Finished difference. Result has 75 places, 65 transitions, 337 flow [2021-03-24 19:40:35,523 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=191, PETRI_DIFFERENCE_MINUEND_FLOW=258, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=56, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=337, PETRI_PLACES=75, PETRI_TRANSITIONS=65} [2021-03-24 19:40:35,523 INFO L343 CegarLoopForPetriNet]: 60 programPoint places, 15 predicate places. [2021-03-24 19:40:35,523 INFO L480 AbstractCegarLoop]: Abstraction has has 75 places, 65 transitions, 337 flow [2021-03-24 19:40:35,524 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 160.75) internal successors, (643), 4 states have internal predecessors, (643), 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) [2021-03-24 19:40:35,524 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 19:40:35,524 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, 1, 1, 1, 1, 1, 1] [2021-03-24 19:40:35,524 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-03-24 19:40:35,524 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]=== [2021-03-24 19:40:35,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 19:40:35,524 INFO L82 PathProgramCache]: Analyzing trace with hash 800731771, now seen corresponding path program 1 times [2021-03-24 19:40:35,524 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 19:40:35,524 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1610693286] [2021-03-24 19:40:35,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 19:40:35,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 19:40:35,580 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:40:35,580 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 19:40:35,583 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:40:35,583 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 19:40:35,587 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-03-24 19:40:35,589 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-24 19:40:35,594 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:40:35,595 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 19:40:35,595 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 19:40:35,595 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1610693286] [2021-03-24 19:40:35,595 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 19:40:35,595 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-24 19:40:35,595 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [381168160] [2021-03-24 19:40:35,596 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-24 19:40:35,596 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 19:40:35,596 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-24 19:40:35,597 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-03-24 19:40:35,597 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 160 out of 191 [2021-03-24 19:40:35,598 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 65 transitions, 337 flow. Second operand has 5 states, 5 states have (on average 160.8) internal successors, (804), 5 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) [2021-03-24 19:40:35,598 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 19:40:35,598 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 160 of 191 [2021-03-24 19:40:35,599 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 19:40:35,688 INFO L129 PetriNetUnfolder]: 246/544 cut-off events. [2021-03-24 19:40:35,688 INFO L130 PetriNetUnfolder]: For 1222/2217 co-relation queries the response was YES. [2021-03-24 19:40:35,691 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2104 conditions, 544 events. 246/544 cut-off events. For 1222/2217 co-relation queries the response was YES. Maximal size of possible extension queue 85. Compared 3201 event pairs, 40 based on Foata normal form. 109/571 useless extension candidates. Maximal degree in co-relation 2066. Up to 296 conditions per place. [2021-03-24 19:40:35,693 INFO L132 encePairwiseOnDemand]: 184/191 looper letters, 11 selfloop transitions, 19 changer transitions 0/78 dead transitions. [2021-03-24 19:40:35,693 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 81 places, 78 transitions, 473 flow [2021-03-24 19:40:35,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-24 19:40:35,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-24 19:40:35,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1151 transitions. [2021-03-24 19:40:35,695 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8608825729244577 [2021-03-24 19:40:35,696 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1151 transitions. [2021-03-24 19:40:35,696 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1151 transitions. [2021-03-24 19:40:35,696 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 19:40:35,696 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1151 transitions. [2021-03-24 19:40:35,698 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 164.42857142857142) internal successors, (1151), 7 states have internal predecessors, (1151), 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) [2021-03-24 19:40:35,699 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 191.0) internal successors, (1528), 8 states have internal predecessors, (1528), 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) [2021-03-24 19:40:35,699 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 191.0) internal successors, (1528), 8 states have internal predecessors, (1528), 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) [2021-03-24 19:40:35,699 INFO L185 Difference]: Start difference. First operand has 75 places, 65 transitions, 337 flow. Second operand 7 states and 1151 transitions. [2021-03-24 19:40:35,699 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 81 places, 78 transitions, 473 flow [2021-03-24 19:40:35,702 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 78 transitions, 468 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-24 19:40:35,704 INFO L241 Difference]: Finished difference. Result has 83 places, 74 transitions, 470 flow [2021-03-24 19:40:35,705 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=191, PETRI_DIFFERENCE_MINUEND_FLOW=332, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=65, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=470, PETRI_PLACES=83, PETRI_TRANSITIONS=74} [2021-03-24 19:40:35,705 INFO L343 CegarLoopForPetriNet]: 60 programPoint places, 23 predicate places. [2021-03-24 19:40:35,705 INFO L480 AbstractCegarLoop]: Abstraction has has 83 places, 74 transitions, 470 flow [2021-03-24 19:40:35,705 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 160.8) internal successors, (804), 5 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) [2021-03-24 19:40:35,705 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 19:40:35,705 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, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 19:40:35,705 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-03-24 19:40:35,706 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]=== [2021-03-24 19:40:35,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 19:40:35,706 INFO L82 PathProgramCache]: Analyzing trace with hash 1990111185, now seen corresponding path program 1 times [2021-03-24 19:40:35,706 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 19:40:35,706 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [263052534] [2021-03-24 19:40:35,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 19:40:35,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 19:40:35,748 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:40:35,748 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 19:40:35,749 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:40:35,750 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 19:40:35,752 INFO L142 QuantifierPusher]: treesize reduction 9, result has 30.8 percent of original size [2021-03-24 19:40:35,752 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-24 19:40:35,756 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 19:40:35,756 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [263052534] [2021-03-24 19:40:35,757 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 19:40:35,757 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-24 19:40:35,757 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1917966584] [2021-03-24 19:40:35,758 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-24 19:40:35,758 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 19:40:35,758 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-24 19:40:35,760 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-24 19:40:35,761 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 171 out of 191 [2021-03-24 19:40:35,761 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 74 transitions, 470 flow. Second operand has 4 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) [2021-03-24 19:40:35,761 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 19:40:35,761 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 171 of 191 [2021-03-24 19:40:35,761 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 19:40:35,851 INFO L129 PetriNetUnfolder]: 357/795 cut-off events. [2021-03-24 19:40:35,851 INFO L130 PetriNetUnfolder]: For 3009/5036 co-relation queries the response was YES. [2021-03-24 19:40:35,855 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3725 conditions, 795 events. 357/795 cut-off events. For 3009/5036 co-relation queries the response was YES. Maximal size of possible extension queue 129. Compared 5245 event pairs, 50 based on Foata normal form. 56/724 useless extension candidates. Maximal degree in co-relation 3683. Up to 479 conditions per place. [2021-03-24 19:40:35,858 INFO L132 encePairwiseOnDemand]: 187/191 looper letters, 5 selfloop transitions, 5 changer transitions 0/77 dead transitions. [2021-03-24 19:40:35,858 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 87 places, 77 transitions, 514 flow [2021-03-24 19:40:35,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-24 19:40:35,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-24 19:40:35,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 866 transitions. [2021-03-24 19:40:35,860 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9068062827225131 [2021-03-24 19:40:35,860 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 866 transitions. [2021-03-24 19:40:35,860 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 866 transitions. [2021-03-24 19:40:35,861 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 19:40:35,861 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 866 transitions. [2021-03-24 19:40:35,862 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 173.2) internal successors, (866), 5 states have internal predecessors, (866), 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) [2021-03-24 19:40:35,863 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 191.0) internal successors, (1146), 6 states have internal predecessors, (1146), 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) [2021-03-24 19:40:35,863 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 191.0) internal successors, (1146), 6 states have internal predecessors, (1146), 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) [2021-03-24 19:40:35,863 INFO L185 Difference]: Start difference. First operand has 83 places, 74 transitions, 470 flow. Second operand 5 states and 866 transitions. [2021-03-24 19:40:35,863 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 87 places, 77 transitions, 514 flow [2021-03-24 19:40:35,868 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 84 places, 77 transitions, 460 flow, removed 19 selfloop flow, removed 3 redundant places. [2021-03-24 19:40:35,869 INFO L241 Difference]: Finished difference. Result has 87 places, 76 transitions, 457 flow [2021-03-24 19:40:35,869 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=191, PETRI_DIFFERENCE_MINUEND_FLOW=418, PETRI_DIFFERENCE_MINUEND_PLACES=80, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=74, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=70, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=457, PETRI_PLACES=87, PETRI_TRANSITIONS=76} [2021-03-24 19:40:35,870 INFO L343 CegarLoopForPetriNet]: 60 programPoint places, 27 predicate places. [2021-03-24 19:40:35,870 INFO L480 AbstractCegarLoop]: Abstraction has has 87 places, 76 transitions, 457 flow [2021-03-24 19:40:35,870 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 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) [2021-03-24 19:40:35,870 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 19:40:35,870 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, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 19:40:35,870 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-03-24 19:40:35,870 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]=== [2021-03-24 19:40:35,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 19:40:35,870 INFO L82 PathProgramCache]: Analyzing trace with hash 95830051, now seen corresponding path program 1 times [2021-03-24 19:40:35,871 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 19:40:35,871 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2083095598] [2021-03-24 19:40:35,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 19:40:35,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 19:40:35,913 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:40:35,914 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 19:40:35,916 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:40:35,916 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 19:40:35,919 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:40:35,919 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 19:40:35,923 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-03-24 19:40:35,924 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-24 19:40:35,929 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:40:35,929 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 19:40:35,930 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 19:40:35,930 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2083095598] [2021-03-24 19:40:35,930 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 19:40:35,930 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-24 19:40:35,930 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [337722594] [2021-03-24 19:40:35,930 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-24 19:40:35,930 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 19:40:35,930 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-24 19:40:35,930 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-03-24 19:40:35,931 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 160 out of 191 [2021-03-24 19:40:35,932 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 87 places, 76 transitions, 457 flow. Second operand has 6 states, 6 states have (on average 160.83333333333334) internal successors, (965), 6 states have internal predecessors, (965), 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) [2021-03-24 19:40:35,932 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 19:40:35,932 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 160 of 191 [2021-03-24 19:40:35,932 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 19:40:36,078 INFO L129 PetriNetUnfolder]: 240/537 cut-off events. [2021-03-24 19:40:36,079 INFO L130 PetriNetUnfolder]: For 2608/4732 co-relation queries the response was YES. [2021-03-24 19:40:36,081 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2616 conditions, 537 events. 240/537 cut-off events. For 2608/4732 co-relation queries the response was YES. Maximal size of possible extension queue 113. Compared 3093 event pairs, 5 based on Foata normal form. 155/582 useless extension candidates. Maximal degree in co-relation 2572. Up to 327 conditions per place. [2021-03-24 19:40:36,082 INFO L132 encePairwiseOnDemand]: 184/191 looper letters, 6 selfloop transitions, 28 changer transitions 6/86 dead transitions. [2021-03-24 19:40:36,082 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 86 transitions, 628 flow [2021-03-24 19:40:36,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-24 19:40:36,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-24 19:40:36,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1480 transitions. [2021-03-24 19:40:36,085 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8609656777196044 [2021-03-24 19:40:36,085 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1480 transitions. [2021-03-24 19:40:36,085 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1480 transitions. [2021-03-24 19:40:36,086 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 19:40:36,086 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1480 transitions. [2021-03-24 19:40:36,088 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 164.44444444444446) internal successors, (1480), 9 states have internal predecessors, (1480), 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) [2021-03-24 19:40:36,090 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 191.0) internal successors, (1910), 10 states have internal predecessors, (1910), 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) [2021-03-24 19:40:36,090 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 191.0) internal successors, (1910), 10 states have internal predecessors, (1910), 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) [2021-03-24 19:40:36,090 INFO L185 Difference]: Start difference. First operand has 87 places, 76 transitions, 457 flow. Second operand 9 states and 1480 transitions. [2021-03-24 19:40:36,090 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 86 transitions, 628 flow [2021-03-24 19:40:36,093 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 86 transitions, 616 flow, removed 3 selfloop flow, removed 2 redundant places. [2021-03-24 19:40:36,094 INFO L241 Difference]: Finished difference. Result has 96 places, 80 transitions, 572 flow [2021-03-24 19:40:36,094 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=191, PETRI_DIFFERENCE_MINUEND_FLOW=414, PETRI_DIFFERENCE_MINUEND_PLACES=85, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=73, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=572, PETRI_PLACES=96, PETRI_TRANSITIONS=80} [2021-03-24 19:40:36,095 INFO L343 CegarLoopForPetriNet]: 60 programPoint places, 36 predicate places. [2021-03-24 19:40:36,095 INFO L480 AbstractCegarLoop]: Abstraction has has 96 places, 80 transitions, 572 flow [2021-03-24 19:40:36,095 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 160.83333333333334) internal successors, (965), 6 states have internal predecessors, (965), 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) [2021-03-24 19:40:36,095 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 19:40:36,095 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 19:40:36,095 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-03-24 19:40:36,095 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]=== [2021-03-24 19:40:36,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 19:40:36,095 INFO L82 PathProgramCache]: Analyzing trace with hash 429615901, now seen corresponding path program 1 times [2021-03-24 19:40:36,096 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 19:40:36,096 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1361307540] [2021-03-24 19:40:36,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 19:40:36,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 19:40:36,139 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:40:36,139 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 19:40:36,141 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:40:36,141 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 19:40:36,144 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:40:36,144 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 19:40:36,147 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:40:36,148 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 19:40:36,153 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-03-24 19:40:36,154 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-24 19:40:36,159 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:40:36,159 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 19:40:36,160 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 19:40:36,160 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1361307540] [2021-03-24 19:40:36,160 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 19:40:36,160 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-24 19:40:36,160 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [754639549] [2021-03-24 19:40:36,160 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-24 19:40:36,160 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 19:40:36,160 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-24 19:40:36,160 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-03-24 19:40:36,161 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 160 out of 191 [2021-03-24 19:40:36,171 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 96 places, 80 transitions, 572 flow. Second operand has 7 states, 7 states have (on average 160.85714285714286) internal successors, (1126), 7 states have internal predecessors, (1126), 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) [2021-03-24 19:40:36,171 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 19:40:36,171 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 160 of 191 [2021-03-24 19:40:36,171 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 19:40:36,298 INFO L129 PetriNetUnfolder]: 198/444 cut-off events. [2021-03-24 19:40:36,298 INFO L130 PetriNetUnfolder]: For 3139/5424 co-relation queries the response was YES. [2021-03-24 19:40:36,300 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2640 conditions, 444 events. 198/444 cut-off events. For 3139/5424 co-relation queries the response was YES. Maximal size of possible extension queue 107. Compared 2442 event pairs, 0 based on Foata normal form. 128/467 useless extension candidates. Maximal degree in co-relation 2611. Up to 279 conditions per place. [2021-03-24 19:40:36,302 INFO L132 encePairwiseOnDemand]: 184/191 looper letters, 2 selfloop transitions, 33 changer transitions 4/85 dead transitions. [2021-03-24 19:40:36,303 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 85 transitions, 706 flow [2021-03-24 19:40:36,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-24 19:40:36,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-24 19:40:36,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1801 transitions. [2021-03-24 19:40:36,306 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8572108519752499 [2021-03-24 19:40:36,306 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1801 transitions. [2021-03-24 19:40:36,306 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1801 transitions. [2021-03-24 19:40:36,307 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 19:40:36,307 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1801 transitions. [2021-03-24 19:40:36,309 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 163.72727272727272) internal successors, (1801), 11 states have internal predecessors, (1801), 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) [2021-03-24 19:40:36,311 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 191.0) internal successors, (2292), 12 states have internal predecessors, (2292), 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) [2021-03-24 19:40:36,312 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 191.0) internal successors, (2292), 12 states have internal predecessors, (2292), 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) [2021-03-24 19:40:36,312 INFO L185 Difference]: Start difference. First operand has 96 places, 80 transitions, 572 flow. Second operand 11 states and 1801 transitions. [2021-03-24 19:40:36,312 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 104 places, 85 transitions, 706 flow [2021-03-24 19:40:36,319 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 96 places, 85 transitions, 583 flow, removed 46 selfloop flow, removed 8 redundant places. [2021-03-24 19:40:36,320 INFO L241 Difference]: Finished difference. Result has 99 places, 81 transitions, 543 flow [2021-03-24 19:40:36,320 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=191, PETRI_DIFFERENCE_MINUEND_FLOW=449, PETRI_DIFFERENCE_MINUEND_PLACES=86, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=80, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=32, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=543, PETRI_PLACES=99, PETRI_TRANSITIONS=81} [2021-03-24 19:40:36,321 INFO L343 CegarLoopForPetriNet]: 60 programPoint places, 39 predicate places. [2021-03-24 19:40:36,321 INFO L480 AbstractCegarLoop]: Abstraction has has 99 places, 81 transitions, 543 flow [2021-03-24 19:40:36,321 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 160.85714285714286) internal successors, (1126), 7 states have internal predecessors, (1126), 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) [2021-03-24 19:40:36,321 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 19:40:36,321 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 19:40:36,321 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-03-24 19:40:36,321 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]=== [2021-03-24 19:40:36,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 19:40:36,321 INFO L82 PathProgramCache]: Analyzing trace with hash 584993636, now seen corresponding path program 1 times [2021-03-24 19:40:36,321 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 19:40:36,322 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1026801224] [2021-03-24 19:40:36,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 19:40:36,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 19:40:36,360 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:40:36,361 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 19:40:36,361 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:40:36,361 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 19:40:36,363 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:40:36,364 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 19:40:36,367 INFO L142 QuantifierPusher]: treesize reduction 9, result has 30.8 percent of original size [2021-03-24 19:40:36,368 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-24 19:40:36,371 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 19:40:36,371 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1026801224] [2021-03-24 19:40:36,371 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 19:40:36,371 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-24 19:40:36,371 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [104616707] [2021-03-24 19:40:36,372 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-24 19:40:36,372 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 19:40:36,372 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-24 19:40:36,372 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-03-24 19:40:36,373 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 169 out of 191 [2021-03-24 19:40:36,373 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 81 transitions, 543 flow. Second operand has 5 states, 5 states have (on average 170.2) internal successors, (851), 5 states have internal predecessors, (851), 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) [2021-03-24 19:40:36,373 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 19:40:36,373 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 169 of 191 [2021-03-24 19:40:36,373 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 19:40:36,461 INFO L129 PetriNetUnfolder]: 389/868 cut-off events. [2021-03-24 19:40:36,461 INFO L130 PetriNetUnfolder]: For 2904/3434 co-relation queries the response was YES. [2021-03-24 19:40:36,465 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3730 conditions, 868 events. 389/868 cut-off events. For 2904/3434 co-relation queries the response was YES. Maximal size of possible extension queue 195. Compared 6237 event pairs, 0 based on Foata normal form. 10/695 useless extension candidates. Maximal degree in co-relation 3682. Up to 280 conditions per place. [2021-03-24 19:40:36,469 INFO L132 encePairwiseOnDemand]: 187/191 looper letters, 5 selfloop transitions, 2 changer transitions 1/83 dead transitions. [2021-03-24 19:40:36,469 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 102 places, 83 transitions, 565 flow [2021-03-24 19:40:36,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-24 19:40:36,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-24 19:40:36,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 854 transitions. [2021-03-24 19:40:36,471 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8942408376963351 [2021-03-24 19:40:36,471 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 854 transitions. [2021-03-24 19:40:36,471 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 854 transitions. [2021-03-24 19:40:36,471 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 19:40:36,472 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 854 transitions. [2021-03-24 19:40:36,473 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 170.8) internal successors, (854), 5 states have internal predecessors, (854), 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) [2021-03-24 19:40:36,473 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 191.0) internal successors, (1146), 6 states have internal predecessors, (1146), 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) [2021-03-24 19:40:36,474 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 191.0) internal successors, (1146), 6 states have internal predecessors, (1146), 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) [2021-03-24 19:40:36,474 INFO L185 Difference]: Start difference. First operand has 99 places, 81 transitions, 543 flow. Second operand 5 states and 854 transitions. [2021-03-24 19:40:36,474 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 102 places, 83 transitions, 565 flow [2021-03-24 19:40:36,493 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 83 transitions, 450 flow, removed 27 selfloop flow, removed 11 redundant places. [2021-03-24 19:40:36,494 INFO L241 Difference]: Finished difference. Result has 94 places, 82 transitions, 443 flow [2021-03-24 19:40:36,494 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=191, PETRI_DIFFERENCE_MINUEND_FLOW=428, PETRI_DIFFERENCE_MINUEND_PLACES=87, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=81, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=79, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=443, PETRI_PLACES=94, PETRI_TRANSITIONS=82} [2021-03-24 19:40:36,494 INFO L343 CegarLoopForPetriNet]: 60 programPoint places, 34 predicate places. [2021-03-24 19:40:36,494 INFO L480 AbstractCegarLoop]: Abstraction has has 94 places, 82 transitions, 443 flow [2021-03-24 19:40:36,495 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 170.2) internal successors, (851), 5 states have internal predecessors, (851), 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) [2021-03-24 19:40:36,495 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 19:40:36,495 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 19:40:36,495 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-03-24 19:40:36,495 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]=== [2021-03-24 19:40:36,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 19:40:36,495 INFO L82 PathProgramCache]: Analyzing trace with hash 1832488230, now seen corresponding path program 2 times [2021-03-24 19:40:36,496 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 19:40:36,496 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1898339446] [2021-03-24 19:40:36,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 19:40:36,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 19:40:36,540 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:40:36,540 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 19:40:36,540 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:40:36,541 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 19:40:36,543 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:40:36,544 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 19:40:36,546 INFO L142 QuantifierPusher]: treesize reduction 9, result has 30.8 percent of original size [2021-03-24 19:40:36,547 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-24 19:40:36,550 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 19:40:36,550 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1898339446] [2021-03-24 19:40:36,551 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 19:40:36,551 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-24 19:40:36,551 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [914777701] [2021-03-24 19:40:36,551 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-24 19:40:36,551 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 19:40:36,552 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-24 19:40:36,552 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-03-24 19:40:36,552 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 168 out of 191 [2021-03-24 19:40:36,553 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 82 transitions, 443 flow. Second operand has 5 states, 5 states have (on average 169.2) internal successors, (846), 5 states have internal predecessors, (846), 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) [2021-03-24 19:40:36,553 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 19:40:36,553 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 168 of 191 [2021-03-24 19:40:36,553 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 19:40:36,703 INFO L129 PetriNetUnfolder]: 759/1653 cut-off events. [2021-03-24 19:40:36,703 INFO L130 PetriNetUnfolder]: For 2812/3036 co-relation queries the response was YES. [2021-03-24 19:40:36,711 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5866 conditions, 1653 events. 759/1653 cut-off events. For 2812/3036 co-relation queries the response was YES. Maximal size of possible extension queue 371. Compared 13404 event pairs, 0 based on Foata normal form. 21/1332 useless extension candidates. Maximal degree in co-relation 5840. Up to 550 conditions per place. [2021-03-24 19:40:36,713 INFO L132 encePairwiseOnDemand]: 187/191 looper letters, 5 selfloop transitions, 2 changer transitions 14/84 dead transitions. [2021-03-24 19:40:36,713 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 97 places, 84 transitions, 467 flow [2021-03-24 19:40:36,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-24 19:40:36,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-24 19:40:36,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 849 transitions. [2021-03-24 19:40:36,715 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8890052356020942 [2021-03-24 19:40:36,715 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 849 transitions. [2021-03-24 19:40:36,715 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 849 transitions. [2021-03-24 19:40:36,716 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 19:40:36,716 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 849 transitions. [2021-03-24 19:40:36,717 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 169.8) internal successors, (849), 5 states have internal predecessors, (849), 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) [2021-03-24 19:40:36,718 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 191.0) internal successors, (1146), 6 states have internal predecessors, (1146), 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) [2021-03-24 19:40:36,718 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 191.0) internal successors, (1146), 6 states have internal predecessors, (1146), 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) [2021-03-24 19:40:36,718 INFO L185 Difference]: Start difference. First operand has 94 places, 82 transitions, 443 flow. Second operand 5 states and 849 transitions. [2021-03-24 19:40:36,718 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 97 places, 84 transitions, 467 flow [2021-03-24 19:40:36,766 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 95 places, 84 transitions, 464 flow, removed 1 selfloop flow, removed 2 redundant places. [2021-03-24 19:40:36,767 INFO L241 Difference]: Finished difference. Result has 98 places, 70 transitions, 365 flow [2021-03-24 19:40:36,767 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=191, PETRI_DIFFERENCE_MINUEND_FLOW=440, PETRI_DIFFERENCE_MINUEND_PLACES=91, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=82, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=80, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=365, PETRI_PLACES=98, PETRI_TRANSITIONS=70} [2021-03-24 19:40:36,768 INFO L343 CegarLoopForPetriNet]: 60 programPoint places, 38 predicate places. [2021-03-24 19:40:36,768 INFO L480 AbstractCegarLoop]: Abstraction has has 98 places, 70 transitions, 365 flow [2021-03-24 19:40:36,768 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 169.2) internal successors, (846), 5 states have internal predecessors, (846), 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) [2021-03-24 19:40:36,768 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 19:40:36,768 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 19:40:36,768 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-03-24 19:40:36,768 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]=== [2021-03-24 19:40:36,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 19:40:36,768 INFO L82 PathProgramCache]: Analyzing trace with hash -2037862306, now seen corresponding path program 3 times [2021-03-24 19:40:36,768 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 19:40:36,768 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [136261318] [2021-03-24 19:40:36,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 19:40:36,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-24 19:40:36,798 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-24 19:40:36,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-24 19:40:36,826 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-24 19:40:36,859 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-03-24 19:40:36,859 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-03-24 19:40:36,859 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-03-24 19:40:36,941 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.03 07:40:36 BasicIcfg [2021-03-24 19:40:36,941 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-24 19:40:36,943 INFO L168 Benchmark]: Toolchain (without parser) took 12800.99 ms. Allocated memory was 348.1 MB in the beginning and 599.8 MB in the end (delta: 251.7 MB). Free memory was 311.2 MB in the beginning and 234.4 MB in the end (delta: 76.8 MB). Peak memory consumption was 331.5 MB. Max. memory is 16.0 GB. [2021-03-24 19:40:36,944 INFO L168 Benchmark]: CDTParser took 0.10 ms. Allocated memory is still 348.1 MB. Free memory was 329.7 MB in the beginning and 329.6 MB in the end (delta: 77.3 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-24 19:40:36,946 INFO L168 Benchmark]: CACSL2BoogieTranslator took 387.53 ms. Allocated memory is still 348.1 MB. Free memory was 311.0 MB in the beginning and 307.0 MB in the end (delta: 4.0 MB). Peak memory consumption was 7.3 MB. Max. memory is 16.0 GB. [2021-03-24 19:40:36,948 INFO L168 Benchmark]: Boogie Procedure Inliner took 36.15 ms. Allocated memory is still 348.1 MB. Free memory was 307.0 MB in the beginning and 303.8 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-24 19:40:36,948 INFO L168 Benchmark]: Boogie Preprocessor took 21.20 ms. Allocated memory is still 348.1 MB. Free memory was 303.8 MB in the beginning and 301.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-24 19:40:36,948 INFO L168 Benchmark]: RCFGBuilder took 1379.53 ms. Allocated memory is still 348.1 MB. Free memory was 301.7 MB in the beginning and 247.8 MB in the end (delta: 54.0 MB). Peak memory consumption was 131.6 MB. Max. memory is 16.0 GB. [2021-03-24 19:40:36,949 INFO L168 Benchmark]: TraceAbstraction took 10971.59 ms. Allocated memory was 348.1 MB in the beginning and 599.8 MB in the end (delta: 251.7 MB). Free memory was 246.7 MB in the beginning and 234.4 MB in the end (delta: 12.3 MB). Peak memory consumption was 264.0 MB. Max. memory is 16.0 GB. [2021-03-24 19:40:36,949 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10 ms. Allocated memory is still 348.1 MB. Free memory was 329.7 MB in the beginning and 329.6 MB in the end (delta: 77.3 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 387.53 ms. Allocated memory is still 348.1 MB. Free memory was 311.0 MB in the beginning and 307.0 MB in the end (delta: 4.0 MB). Peak memory consumption was 7.3 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 36.15 ms. Allocated memory is still 348.1 MB. Free memory was 307.0 MB in the beginning and 303.8 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 21.20 ms. Allocated memory is still 348.1 MB. Free memory was 303.8 MB in the beginning and 301.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 1379.53 ms. Allocated memory is still 348.1 MB. Free memory was 301.7 MB in the beginning and 247.8 MB in the end (delta: 54.0 MB). Peak memory consumption was 131.6 MB. Max. memory is 16.0 GB. * TraceAbstraction took 10971.59 ms. Allocated memory was 348.1 MB in the beginning and 599.8 MB in the end (delta: 251.7 MB). Free memory was 246.7 MB in the beginning and 234.4 MB in the end (delta: 12.3 MB). Peak memory consumption was 264.0 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 7511.0ms, 124 PlacesBefore, 60 PlacesAfterwards, 113 TransitionsBefore, 48 TransitionsAfterwards, 2598 CoEnabledTransitionPairs, 5 FixpointIterations, 28 TrivialSequentialCompositions, 41 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 4 ConcurrentYvCompositions, 1 ChoiceCompositions, 74 TotalNumberOfCompositions, 4166 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2227, positive: 2135, positive conditional: 0, positive unconditional: 2135, negative: 92, negative conditional: 0, negative unconditional: 92, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1645, positive: 1604, positive conditional: 0, positive unconditional: 1604, negative: 41, negative conditional: 0, negative unconditional: 41, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1645, positive: 1604, positive conditional: 0, positive unconditional: 1604, negative: 41, negative conditional: 0, negative unconditional: 41, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1645, positive: 1595, positive conditional: 0, positive unconditional: 1595, negative: 50, negative conditional: 0, negative unconditional: 50, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 50, positive: 9, positive conditional: 0, positive unconditional: 9, negative: 41, negative conditional: 0, negative unconditional: 41, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 450, positive: 17, positive conditional: 0, positive unconditional: 17, negative: 433, negative conditional: 0, negative unconditional: 433, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 2227, positive: 531, positive conditional: 0, positive unconditional: 531, negative: 51, negative conditional: 0, negative unconditional: 51, unknown: 1645, unknown conditional: 0, unknown unconditional: 1645] , Statistics on independence cache: Total cache size (in pairs): 177, Positive cache size: 157, Positive conditional cache size: 0, Positive unconditional cache size: 157, Negative cache size: 20, Negative conditional cache size: 0, Negative unconditional cache size: 20 - 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; VAL [__unbuffered_cnt=0] [L712] 0 int __unbuffered_p1_EAX = 0; [L714] 0 int __unbuffered_p3_EAX = 0; [L716] 0 int __unbuffered_p3_EBX = 0; VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0] [L718] 0 int a = 0; [L720] 0 int b = 0; VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, b=0] [L721] 0 _Bool main$tmp_guard0; [L722] 0 _Bool main$tmp_guard1; [L724] 0 int x = 0; VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, b=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0] [L726] 0 int y = 0; [L728] 0 int z = 0; VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, b=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, z=0] [L729] 0 _Bool z$flush_delayed; [L730] 0 int z$mem_tmp; [L731] 0 _Bool z$r_buff0_thd0; VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, b=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0] [L732] 0 _Bool z$r_buff0_thd1; [L733] 0 _Bool z$r_buff0_thd2; VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, b=0, main$tmp_guard0=0, main$tmp_guard1=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$r_buff0_thd2=0] [L734] 0 _Bool z$r_buff0_thd3; [L735] 0 _Bool z$r_buff0_thd4; [L736] 0 _Bool z$r_buff1_thd0; VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, b=0, main$tmp_guard0=0, main$tmp_guard1=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] [L737] 0 _Bool z$r_buff1_thd1; [L738] 0 _Bool z$r_buff1_thd2; [L739] 0 _Bool z$r_buff1_thd3; VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, b=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, z=0, z$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] [L740] 0 _Bool z$r_buff1_thd4; [L741] 0 _Bool z$read_delayed; [L742] 0 int *z$read_delayed_var; VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, b=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, z=0, z$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$read_delayed_var={0:0}] [L743] 0 int z$w_buff0; [L744] 0 _Bool z$w_buff0_used; VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, b=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, z=0, z$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$w_buff0_used=0] [L745] 0 int z$w_buff1; [L746] 0 _Bool z$w_buff1_used; [L747] 0 _Bool weak$$choice0; VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, b=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=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] [L748] 0 _Bool weak$$choice2; [L846] 0 pthread_t t1173; [L847] FCALL, FORK 0 pthread_create(&t1173, ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, b=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L848] 0 pthread_t t1174; [L849] FCALL, FORK 0 pthread_create(&t1174, ((void *)0), P1, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, b=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L850] 0 pthread_t t1175; [L851] FCALL, FORK 0 pthread_create(&t1175, ((void *)0), P2, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, b=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L852] 0 pthread_t t1176; [L853] FCALL, FORK 0 pthread_create(&t1176, ((void *)0), P3, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, b=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L802] 4 z$w_buff1 = z$w_buff0 [L803] 4 z$w_buff0 = 2 [L804] 4 z$w_buff1_used = z$w_buff0_used [L805] 4 z$w_buff0_used = (_Bool)1 [L18] COND FALSE 4 !(!expression) [L807] 4 z$r_buff1_thd0 = z$r_buff0_thd0 [L808] 4 z$r_buff1_thd1 = z$r_buff0_thd1 [L809] 4 z$r_buff1_thd2 = z$r_buff0_thd2 [L810] 4 z$r_buff1_thd3 = z$r_buff0_thd3 [L811] 4 z$r_buff1_thd4 = z$r_buff0_thd4 [L812] 4 z$r_buff0_thd4 = (_Bool)1 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, b=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L815] 4 a = 1 [L818] 4 __unbuffered_p3_EAX = a VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, b=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L821] 4 __unbuffered_p3_EBX = b VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, b=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L752] 1 b = 1 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L755] 1 x = 1 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L767] 2 x = 2 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L770] 2 __unbuffered_p1_EAX = y VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L782] 3 y = 1 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=1, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L785] 3 z = 1 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=1, 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] [L788] 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) [L788] EXPR 3 z$w_buff1_used && z$r_buff1_thd3 ? z$w_buff1 : z [L788] 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) [L788] 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) [L789] EXPR 3 z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : z$w_buff0_used [L789] 3 z$w_buff0_used = z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : z$w_buff0_used [L790] EXPR 3 z$w_buff0_used && z$r_buff0_thd3 || z$w_buff1_used && z$r_buff1_thd3 ? (_Bool)0 : z$w_buff1_used [L790] 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 [L791] EXPR 3 z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : z$r_buff0_thd3 [L791] 3 z$r_buff0_thd3 = z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : z$r_buff0_thd3 [L792] EXPR 3 z$w_buff0_used && z$r_buff0_thd3 || z$w_buff1_used && z$r_buff1_thd3 ? (_Bool)0 : z$r_buff1_thd3 [L792] 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 [L760] 1 __unbuffered_cnt = __unbuffered_cnt + 1 [L762] 1 return 0; [L775] 2 __unbuffered_cnt = __unbuffered_cnt + 1 [L777] 2 return 0; [L824] 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) [L824] 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) [L825] EXPR 4 z$w_buff0_used && z$r_buff0_thd4 ? (_Bool)0 : z$w_buff0_used [L825] 4 z$w_buff0_used = z$w_buff0_used && z$r_buff0_thd4 ? (_Bool)0 : z$w_buff0_used [L826] EXPR 4 z$w_buff0_used && z$r_buff0_thd4 || z$w_buff1_used && z$r_buff1_thd4 ? (_Bool)0 : z$w_buff1_used [L826] 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 [L827] EXPR 4 z$w_buff0_used && z$r_buff0_thd4 ? (_Bool)0 : z$r_buff0_thd4 [L827] 4 z$r_buff0_thd4 = z$w_buff0_used && z$r_buff0_thd4 ? (_Bool)0 : z$r_buff0_thd4 [L828] EXPR 4 z$w_buff0_used && z$r_buff0_thd4 || z$w_buff1_used && z$r_buff1_thd4 ? (_Bool)0 : z$r_buff1_thd4 [L828] 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 [L795] 3 __unbuffered_cnt = __unbuffered_cnt + 1 [L797] 3 return 0; [L831] 4 __unbuffered_cnt = __unbuffered_cnt + 1 [L833] 4 return 0; [L855] 0 main$tmp_guard0 = __unbuffered_cnt == 4 [L3] COND FALSE 0 !(!cond) [L859] 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) [L859] EXPR 0 z$w_buff1_used && z$r_buff1_thd0 ? z$w_buff1 : z [L859] 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) [L859] 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) [L860] EXPR 0 z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$w_buff0_used [L860] 0 z$w_buff0_used = z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$w_buff0_used [L861] EXPR 0 z$w_buff0_used && z$r_buff0_thd0 || z$w_buff1_used && z$r_buff1_thd0 ? (_Bool)0 : z$w_buff1_used [L861] 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 [L862] EXPR 0 z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$r_buff0_thd0 [L862] 0 z$r_buff0_thd0 = z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$r_buff0_thd0 [L863] EXPR 0 z$w_buff0_used && z$r_buff0_thd0 || z$w_buff1_used && z$r_buff1_thd0 ? (_Bool)0 : z$r_buff1_thd0 [L863] 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 [L866] 0 weak$$choice0 = __VERIFIER_nondet_bool() [L867] 0 weak$$choice2 = __VERIFIER_nondet_bool() [L868] 0 z$flush_delayed = weak$$choice2 [L869] 0 z$mem_tmp = z [L870] EXPR 0 !z$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) [L870] 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) [L871] EXPR 0 weak$$choice2 ? z$w_buff0 : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$w_buff0 : (z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff0 : z$w_buff0)) [L871] 0 z$w_buff0 = weak$$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)) [L872] EXPR 0 weak$$choice2 ? z$w_buff1 : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$w_buff1 : (z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff1 : z$w_buff1)) [L872] 0 z$w_buff1 = weak$$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)) [L873] EXPR 0 weak$$choice2 ? z$w_buff0_used : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$w_buff0_used : (z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$w_buff0_used)) [L873] 0 z$w_buff0_used = weak$$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)) [L874] EXPR 0 weak$$choice2 ? z$w_buff1_used : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$w_buff1_used : (z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L874] 0 z$w_buff1_used = weak$$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)) [L875] EXPR 0 weak$$choice2 ? z$r_buff0_thd0 : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$r_buff0_thd0 : (z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$r_buff0_thd0)) [L875] 0 z$r_buff0_thd0 = weak$$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)) [L876] EXPR 0 weak$$choice2 ? z$r_buff1_thd0 : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$r_buff1_thd0 : (z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L876] 0 z$r_buff1_thd0 = weak$$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$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L877] 0 main$tmp_guard1 = !(x == 2 && z == 2 && __unbuffered_p1_EAX == 0 && __unbuffered_p3_EAX == 1 && __unbuffered_p3_EBX == 0) [L878] EXPR 0 z$flush_delayed ? z$mem_tmp : z [L878] 0 z = z$flush_delayed ? z$mem_tmp : z [L879] 0 z$flush_delayed = (_Bool)0 [L18] COND TRUE 0 !expression [L18] 0 reach_error() VAL [\result={0:0}, \result={0:0}, \result={0:0}, __unbuffered_cnt=4, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=2, weak$$choice2=1, x=2, y=1, 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, 116 locations, 2 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 28.0ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: UNSAFE, OverallTime: 10822.9ms, OverallIterations: 15, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 1723.7ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 7569.9ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 71 SDtfs, 80 SDslu, 86 SDs, 0 SdLazy, 372 SolverSat, 120 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 316.6ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 91 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 364.6ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=572occurred in iteration=11, 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: 44.9ms SsaConstructionTime, 380.8ms SatisfiabilityAnalysisTime, 828.5ms InterpolantComputationTime, 475 NumberOfCodeBlocks, 475 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 421 ConstructedInterpolants, 0 QuantifiedInterpolants, 1476 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 14 InterpolantComputations, 14 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...