/usr/bin/java -Xmx8000000000 -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-NoLbe-OGIterative-Hitting.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe025_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-2cf4d3f9dd5fed411db405f577e28237a543b59a-2cf4d3f [2021-08-13 11:25:01,077 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-13 11:25:01,080 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-13 11:25:01,117 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-13 11:25:01,118 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-13 11:25:01,121 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-13 11:25:01,123 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-13 11:25:01,128 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-13 11:25:01,130 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-13 11:25:01,134 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-13 11:25:01,135 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-13 11:25:01,136 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-13 11:25:01,136 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-13 11:25:01,138 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-13 11:25:01,139 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-13 11:25:01,140 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-13 11:25:01,143 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-13 11:25:01,143 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-13 11:25:01,146 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-13 11:25:01,154 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-13 11:25:01,157 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-13 11:25:01,158 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-13 11:25:01,159 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-13 11:25:01,161 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-13 11:25:01,165 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-13 11:25:01,165 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-13 11:25:01,165 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-13 11:25:01,166 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-13 11:25:01,166 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-13 11:25:01,167 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-13 11:25:01,167 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-13 11:25:01,167 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-13 11:25:01,168 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-13 11:25:01,168 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-13 11:25:01,169 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-13 11:25:01,169 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-13 11:25:01,169 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-13 11:25:01,170 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-13 11:25:01,170 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-13 11:25:01,170 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-13 11:25:01,171 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-13 11:25:01,171 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-NoLbe-OGIterative-Hitting.epf [2021-08-13 11:25:01,201 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-13 11:25:01,202 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-13 11:25:01,205 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-13 11:25:01,205 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-13 11:25:01,205 INFO L138 SettingsManager]: * Use SBE=true [2021-08-13 11:25:01,205 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-13 11:25:01,206 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-13 11:25:01,206 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-13 11:25:01,206 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-13 11:25:01,206 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-13 11:25:01,207 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-13 11:25:01,207 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-13 11:25:01,207 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-13 11:25:01,207 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-13 11:25:01,207 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-13 11:25:01,208 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-13 11:25:01,208 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-13 11:25:01,208 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-13 11:25:01,208 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-13 11:25:01,208 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-08-13 11:25:01,209 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-13 11:25:01,209 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-13 11:25:01,209 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-13 11:25:01,209 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-13 11:25:01,209 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-13 11:25:01,209 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-13 11:25:01,209 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-13 11:25:01,209 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-08-13 11:25:01,210 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-08-13 11:25:01,210 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-13 11:25:01,210 INFO L138 SettingsManager]: * Compute cosets for OwickiGries annotation iteratively=true [2021-08-13 11:25:01,210 INFO L138 SettingsManager]: * Use hitting sets in computation of OwickiGries annotation=true [2021-08-13 11:25:01,210 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-08-13 11:25:01,523 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-13 11:25:01,541 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-13 11:25:01,543 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-13 11:25:01,544 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-13 11:25:01,545 INFO L275 PluginConnector]: CDTParser initialized [2021-08-13 11:25:01,545 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe025_tso.oepc.i [2021-08-13 11:25:01,610 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/42c1bf049/f76211449e0b40b39fb913b7ff40e26a/FLAGd11f9fac0 [2021-08-13 11:25:02,539 INFO L306 CDTParser]: Found 1 translation units. [2021-08-13 11:25:02,540 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe025_tso.oepc.i [2021-08-13 11:25:02,550 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/42c1bf049/f76211449e0b40b39fb913b7ff40e26a/FLAGd11f9fac0 [2021-08-13 11:25:02,955 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/42c1bf049/f76211449e0b40b39fb913b7ff40e26a [2021-08-13 11:25:02,958 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-13 11:25:02,960 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-08-13 11:25:02,963 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-13 11:25:02,963 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-13 11:25:02,966 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-13 11:25:02,967 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.08 11:25:02" (1/1) ... [2021-08-13 11:25:02,967 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@70e0c329 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 11:25:02, skipping insertion in model container [2021-08-13 11:25:02,968 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.08 11:25:02" (1/1) ... [2021-08-13 11:25:02,973 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-13 11:25:03,022 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-13 11:25:03,156 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe025_tso.oepc.i[950,963] [2021-08-13 11:25:03,309 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-13 11:25:03,332 INFO L203 MainTranslator]: Completed pre-run [2021-08-13 11:25:03,344 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe025_tso.oepc.i[950,963] [2021-08-13 11:25:03,384 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-13 11:25:03,454 INFO L208 MainTranslator]: Completed translation [2021-08-13 11:25:03,455 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 11:25:03 WrapperNode [2021-08-13 11:25:03,455 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-13 11:25:03,456 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-13 11:25:03,456 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-13 11:25:03,456 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-13 11:25:03,460 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 11:25:03" (1/1) ... [2021-08-13 11:25:03,478 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 11:25:03" (1/1) ... [2021-08-13 11:25:03,494 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-13 11:25:03,495 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-13 11:25:03,495 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-13 11:25:03,495 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-13 11:25:03,500 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 11:25:03" (1/1) ... [2021-08-13 11:25:03,500 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 11:25:03" (1/1) ... [2021-08-13 11:25:03,503 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 11:25:03" (1/1) ... [2021-08-13 11:25:03,503 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 11:25:03" (1/1) ... [2021-08-13 11:25:03,508 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 11:25:03" (1/1) ... [2021-08-13 11:25:03,509 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 11:25:03" (1/1) ... [2021-08-13 11:25:03,511 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 11:25:03" (1/1) ... [2021-08-13 11:25:03,513 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-13 11:25:03,514 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-13 11:25:03,514 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-13 11:25:03,514 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-13 11:25:03,515 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 11:25:03" (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 [2021-08-13 11:25:03,588 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-08-13 11:25:03,589 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-08-13 11:25:03,589 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-13 11:25:03,589 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-08-13 11:25:03,589 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-08-13 11:25:03,590 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-08-13 11:25:03,590 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-08-13 11:25:03,590 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-08-13 11:25:03,590 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-08-13 11:25:03,590 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-08-13 11:25:03,590 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-08-13 11:25:03,590 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-08-13 11:25:03,590 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-13 11:25:03,590 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-13 11:25:03,592 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-08-13 11:25:03,905 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-13 11:25:03,906 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-08-13 11:25:03,907 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.08 11:25:03 BoogieIcfgContainer [2021-08-13 11:25:03,907 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-13 11:25:03,909 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-13 11:25:03,909 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-13 11:25:03,911 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-13 11:25:03,911 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.08 11:25:02" (1/3) ... [2021-08-13 11:25:03,912 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@152ed360 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.08 11:25:03, skipping insertion in model container [2021-08-13 11:25:03,912 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 11:25:03" (2/3) ... [2021-08-13 11:25:03,914 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@152ed360 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.08 11:25:03, skipping insertion in model container [2021-08-13 11:25:03,914 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.08 11:25:03" (3/3) ... [2021-08-13 11:25:03,915 INFO L111 eAbstractionObserver]: Analyzing ICFG safe025_tso.oepc.i [2021-08-13 11:25:03,919 INFO L206 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-13 11:25:03,920 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-08-13 11:25:03,920 INFO L445 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-08-13 11:25:03,942 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 11:25:03,942 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 11:25:03,942 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 11:25:03,943 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 11:25:03,943 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 11:25:03,943 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 11:25:03,943 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 11:25:03,943 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 11:25:03,944 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 11:25:03,944 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 11:25:03,944 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 11:25:03,944 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 11:25:03,944 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 11:25:03,945 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 11:25:03,945 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 11:25:03,945 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 11:25:03,945 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 11:25:03,945 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 11:25:03,945 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 11:25:03,945 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 11:25:03,946 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 11:25:03,946 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 11:25:03,946 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 11:25:03,946 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 11:25:03,947 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 11:25:03,947 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 11:25:03,947 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 11:25:03,947 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 11:25:03,947 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 11:25:03,947 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 11:25:03,947 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 11:25:03,948 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 11:25:03,948 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 11:25:03,948 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 11:25:03,948 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 11:25:03,949 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 11:25:03,950 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 11:25:03,951 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 11:25:03,951 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 11:25:03,951 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 11:25:03,955 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 11:25:03,955 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 11:25:03,955 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 11:25:03,955 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 11:25:03,957 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 11:25:03,957 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 11:25:03,957 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 11:25:03,957 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 11:25:03,959 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-08-13 11:25:03,978 INFO L255 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-08-13 11:25:03,995 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-08-13 11:25:03,995 INFO L379 AbstractCegarLoop]: Hoare is false [2021-08-13 11:25:03,995 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-08-13 11:25:03,996 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-08-13 11:25:03,996 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-08-13 11:25:03,996 INFO L383 AbstractCegarLoop]: Difference is false [2021-08-13 11:25:03,996 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-08-13 11:25:03,996 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-08-13 11:25:04,006 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 92 places, 84 transitions, 183 flow [2021-08-13 11:25:04,040 INFO L129 PetriNetUnfolder]: 2/81 cut-off events. [2021-08-13 11:25:04,040 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-08-13 11:25:04,044 INFO L84 FinitePrefix]: Finished finitePrefix Result has 91 conditions, 81 events. 2/81 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 43 event pairs, 0 based on Foata normal form. 0/78 useless extension candidates. Maximal degree in co-relation 63. Up to 2 conditions per place. [2021-08-13 11:25:04,044 INFO L82 GeneralOperation]: Start removeDead. Operand has 92 places, 84 transitions, 183 flow [2021-08-13 11:25:04,047 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 78 places, 69 transitions, 147 flow [2021-08-13 11:25:04,067 INFO L129 PetriNetUnfolder]: 1/68 cut-off events. [2021-08-13 11:25:04,067 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-08-13 11:25:04,068 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 11:25:04,068 INFO L266 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 11:25:04,068 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-13 11:25:04,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 11:25:04,073 INFO L82 PathProgramCache]: Analyzing trace with hash 1943773822, now seen corresponding path program 1 times [2021-08-13 11:25:04,080 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 11:25:04,081 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [462180344] [2021-08-13 11:25:04,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 11:25:04,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 11:25:04,437 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 11:25:04,438 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 11:25:04,446 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-08-13 11:25:04,447 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-08-13 11:25:04,468 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-08-13 11:25:04,470 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-08-13 11:25:04,494 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 11:25:04,496 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 11:25:04,505 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 11:25:04,506 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 11:25:04,517 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 11:25:04,518 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 11:25:04,521 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 11:25:04,522 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 11:25:04,522 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [462180344] [2021-08-13 11:25:04,523 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [462180344] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 11:25:04,524 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 11:25:04,524 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-08-13 11:25:04,525 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1263837588] [2021-08-13 11:25:04,532 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-08-13 11:25:04,533 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 11:25:04,546 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-13 11:25:04,550 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-08-13 11:25:04,556 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 84 [2021-08-13 11:25:04,563 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 69 transitions, 147 flow. Second operand has 6 states, 6 states have (on average 66.66666666666667) internal successors, (400), 6 states have internal predecessors, (400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 11:25:04,563 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 11:25:04,567 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 84 [2021-08-13 11:25:04,569 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 11:25:04,948 INFO L129 PetriNetUnfolder]: 361/942 cut-off events. [2021-08-13 11:25:04,949 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-08-13 11:25:04,955 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1568 conditions, 942 events. 361/942 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 96. Compared 6155 event pairs, 59 based on Foata normal form. 35/951 useless extension candidates. Maximal degree in co-relation 1534. Up to 206 conditions per place. [2021-08-13 11:25:04,962 INFO L132 encePairwiseOnDemand]: 71/84 looper letters, 16 selfloop transitions, 8 changer transitions 37/114 dead transitions. [2021-08-13 11:25:04,962 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 114 transitions, 359 flow [2021-08-13 11:25:04,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-08-13 11:25:04,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-08-13 11:25:04,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 650 transitions. [2021-08-13 11:25:04,981 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.8597883597883598 [2021-08-13 11:25:04,982 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 650 transitions. [2021-08-13 11:25:04,982 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 650 transitions. [2021-08-13 11:25:04,986 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 11:25:04,988 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 650 transitions. [2021-08-13 11:25:04,993 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 72.22222222222223) internal successors, (650), 9 states have internal predecessors, (650), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 11:25:05,000 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 84.0) internal successors, (840), 10 states have internal predecessors, (840), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 11:25:05,001 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 84.0) internal successors, (840), 10 states have internal predecessors, (840), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 11:25:05,002 INFO L348 CegarLoopForPetriNet]: 78 programPoint places, 8 predicate places. [2021-08-13 11:25:05,002 INFO L482 AbstractCegarLoop]: Abstraction has has 86 places, 114 transitions, 359 flow [2021-08-13 11:25:05,003 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 66.66666666666667) internal successors, (400), 6 states have internal predecessors, (400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 11:25:05,003 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 11:25:05,003 INFO L266 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 11:25:05,004 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-08-13 11:25:05,004 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-13 11:25:05,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 11:25:05,005 INFO L82 PathProgramCache]: Analyzing trace with hash -1069017409, now seen corresponding path program 1 times [2021-08-13 11:25:05,005 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 11:25:05,005 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1900079985] [2021-08-13 11:25:05,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 11:25:05,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 11:25:05,079 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 11:25:05,079 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 11:25:05,080 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 11:25:05,080 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 11:25:05,087 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-08-13 11:25:05,088 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-08-13 11:25:05,099 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-08-13 11:25:05,105 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-08-13 11:25:05,124 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 11:25:05,125 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 11:25:05,138 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 11:25:05,141 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 11:25:05,150 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 11:25:05,151 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 11:25:05,151 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 11:25:05,151 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 11:25:05,152 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1900079985] [2021-08-13 11:25:05,152 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1900079985] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 11:25:05,153 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 11:25:05,153 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-13 11:25:05,153 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1009342847] [2021-08-13 11:25:05,154 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-08-13 11:25:05,155 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 11:25:05,156 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-08-13 11:25:05,156 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-08-13 11:25:05,157 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 84 [2021-08-13 11:25:05,158 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 86 places, 114 transitions, 359 flow. Second operand has 7 states, 7 states have (on average 66.57142857142857) internal successors, (466), 7 states have internal predecessors, (466), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 11:25:05,158 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 11:25:05,158 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 84 [2021-08-13 11:25:05,159 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 11:25:05,504 INFO L129 PetriNetUnfolder]: 379/961 cut-off events. [2021-08-13 11:25:05,504 INFO L130 PetriNetUnfolder]: For 33/497 co-relation queries the response was YES. [2021-08-13 11:25:05,507 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2303 conditions, 961 events. 379/961 cut-off events. For 33/497 co-relation queries the response was YES. Maximal size of possible extension queue 101. Compared 6267 event pairs, 30 based on Foata normal form. 23/961 useless extension candidates. Maximal degree in co-relation 2263. Up to 246 conditions per place. [2021-08-13 11:25:05,513 INFO L132 encePairwiseOnDemand]: 72/84 looper letters, 20 selfloop transitions, 9 changer transitions 105/187 dead transitions. [2021-08-13 11:25:05,513 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 98 places, 187 transitions, 919 flow [2021-08-13 11:25:05,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-08-13 11:25:05,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-08-13 11:25:05,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 921 transitions. [2021-08-13 11:25:05,516 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.8434065934065934 [2021-08-13 11:25:05,516 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 921 transitions. [2021-08-13 11:25:05,516 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 921 transitions. [2021-08-13 11:25:05,517 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 11:25:05,517 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 921 transitions. [2021-08-13 11:25:05,519 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 70.84615384615384) internal successors, (921), 13 states have internal predecessors, (921), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 11:25:05,521 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 84.0) internal successors, (1176), 14 states have internal predecessors, (1176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 11:25:05,522 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 84.0) internal successors, (1176), 14 states have internal predecessors, (1176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 11:25:05,523 INFO L348 CegarLoopForPetriNet]: 78 programPoint places, 20 predicate places. [2021-08-13 11:25:05,523 INFO L482 AbstractCegarLoop]: Abstraction has has 98 places, 187 transitions, 919 flow [2021-08-13 11:25:05,523 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 66.57142857142857) internal successors, (466), 7 states have internal predecessors, (466), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 11:25:05,523 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 11:25:05,523 INFO L266 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 11:25:05,523 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-08-13 11:25:05,524 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-13 11:25:05,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 11:25:05,524 INFO L82 PathProgramCache]: Analyzing trace with hash -448599139, now seen corresponding path program 1 times [2021-08-13 11:25:05,524 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 11:25:05,525 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [896156495] [2021-08-13 11:25:05,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 11:25:05,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 11:25:05,626 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 11:25:05,627 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 11:25:05,627 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 11:25:05,628 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 11:25:05,637 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-08-13 11:25:05,638 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-08-13 11:25:05,652 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 11:25:05,653 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 11:25:05,660 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 11:25:05,661 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 11:25:05,669 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 11:25:05,669 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 11:25:05,670 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 11:25:05,670 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 11:25:05,670 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [896156495] [2021-08-13 11:25:05,671 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [896156495] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 11:25:05,671 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 11:25:05,671 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-08-13 11:25:05,671 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1970815196] [2021-08-13 11:25:05,671 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-08-13 11:25:05,671 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 11:25:05,672 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-13 11:25:05,672 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-08-13 11:25:05,673 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 84 [2021-08-13 11:25:05,674 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 98 places, 187 transitions, 919 flow. Second operand has 6 states, 6 states have (on average 73.16666666666667) internal successors, (439), 6 states have internal predecessors, (439), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 11:25:05,674 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 11:25:05,674 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 84 [2021-08-13 11:25:05,674 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 11:25:05,874 INFO L129 PetriNetUnfolder]: 454/1259 cut-off events. [2021-08-13 11:25:05,874 INFO L130 PetriNetUnfolder]: For 331/784 co-relation queries the response was YES. [2021-08-13 11:25:05,878 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3245 conditions, 1259 events. 454/1259 cut-off events. For 331/784 co-relation queries the response was YES. Maximal size of possible extension queue 148. Compared 9417 event pairs, 22 based on Foata normal form. 10/1249 useless extension candidates. Maximal degree in co-relation 3202. Up to 265 conditions per place. [2021-08-13 11:25:05,881 INFO L132 encePairwiseOnDemand]: 78/84 looper letters, 10 selfloop transitions, 4 changer transitions 147/229 dead transitions. [2021-08-13 11:25:05,882 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 229 transitions, 1355 flow [2021-08-13 11:25:05,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-08-13 11:25:05,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-08-13 11:25:05,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 668 transitions. [2021-08-13 11:25:05,887 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.8835978835978836 [2021-08-13 11:25:05,889 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 668 transitions. [2021-08-13 11:25:05,889 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 668 transitions. [2021-08-13 11:25:05,889 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 11:25:05,889 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 668 transitions. [2021-08-13 11:25:05,891 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 74.22222222222223) internal successors, (668), 9 states have internal predecessors, (668), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 11:25:05,893 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 84.0) internal successors, (840), 10 states have internal predecessors, (840), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 11:25:05,893 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 84.0) internal successors, (840), 10 states have internal predecessors, (840), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 11:25:05,893 INFO L348 CegarLoopForPetriNet]: 78 programPoint places, 28 predicate places. [2021-08-13 11:25:05,894 INFO L482 AbstractCegarLoop]: Abstraction has has 106 places, 229 transitions, 1355 flow [2021-08-13 11:25:05,894 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 73.16666666666667) internal successors, (439), 6 states have internal predecessors, (439), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 11:25:05,894 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 11:25:05,894 INFO L266 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 11:25:05,894 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-08-13 11:25:05,894 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-13 11:25:05,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 11:25:05,895 INFO L82 PathProgramCache]: Analyzing trace with hash 1880440320, now seen corresponding path program 1 times [2021-08-13 11:25:05,895 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 11:25:05,895 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1764062706] [2021-08-13 11:25:05,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 11:25:05,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 11:25:05,964 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 11:25:05,964 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 11:25:05,965 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 11:25:05,965 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 11:25:05,975 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-08-13 11:25:05,976 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-08-13 11:25:05,988 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-08-13 11:25:05,989 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-08-13 11:25:06,003 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 11:25:06,004 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 11:25:06,011 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 11:25:06,012 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 11:25:06,020 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 11:25:06,020 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 11:25:06,020 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 11:25:06,021 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 11:25:06,021 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1764062706] [2021-08-13 11:25:06,021 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1764062706] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 11:25:06,021 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 11:25:06,021 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-13 11:25:06,021 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2027809845] [2021-08-13 11:25:06,022 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-08-13 11:25:06,022 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 11:25:06,023 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-08-13 11:25:06,023 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-08-13 11:25:06,026 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 84 [2021-08-13 11:25:06,026 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 106 places, 229 transitions, 1355 flow. Second operand has 7 states, 7 states have (on average 66.71428571428571) internal successors, (467), 7 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 11:25:06,026 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 11:25:06,027 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 84 [2021-08-13 11:25:06,027 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 11:25:06,408 INFO L129 PetriNetUnfolder]: 457/1294 cut-off events. [2021-08-13 11:25:06,408 INFO L130 PetriNetUnfolder]: For 415/1677 co-relation queries the response was YES. [2021-08-13 11:25:06,412 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4177 conditions, 1294 events. 457/1294 cut-off events. For 415/1677 co-relation queries the response was YES. Maximal size of possible extension queue 157. Compared 9983 event pairs, 12 based on Foata normal form. 29/1306 useless extension candidates. Maximal degree in co-relation 4128. Up to 276 conditions per place. [2021-08-13 11:25:06,415 INFO L132 encePairwiseOnDemand]: 72/84 looper letters, 20 selfloop transitions, 13 changer transitions 225/311 dead transitions. [2021-08-13 11:25:06,415 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 118 places, 311 transitions, 2443 flow [2021-08-13 11:25:06,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-08-13 11:25:06,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-08-13 11:25:06,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 924 transitions. [2021-08-13 11:25:06,419 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.8461538461538461 [2021-08-13 11:25:06,419 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 924 transitions. [2021-08-13 11:25:06,419 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 924 transitions. [2021-08-13 11:25:06,419 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 11:25:06,420 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 924 transitions. [2021-08-13 11:25:06,421 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 71.07692307692308) internal successors, (924), 13 states have internal predecessors, (924), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 11:25:06,423 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 84.0) internal successors, (1176), 14 states have internal predecessors, (1176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 11:25:06,423 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 84.0) internal successors, (1176), 14 states have internal predecessors, (1176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 11:25:06,424 INFO L348 CegarLoopForPetriNet]: 78 programPoint places, 40 predicate places. [2021-08-13 11:25:06,424 INFO L482 AbstractCegarLoop]: Abstraction has has 118 places, 311 transitions, 2443 flow [2021-08-13 11:25:06,424 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 66.71428571428571) internal successors, (467), 7 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 11:25:06,424 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 11:25:06,424 INFO L266 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 11:25:06,424 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-08-13 11:25:06,424 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-13 11:25:06,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 11:25:06,425 INFO L82 PathProgramCache]: Analyzing trace with hash -93134340, now seen corresponding path program 1 times [2021-08-13 11:25:06,425 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 11:25:06,425 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [624506227] [2021-08-13 11:25:06,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 11:25:06,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 11:25:06,500 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 11:25:06,501 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 11:25:06,501 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 11:25:06,505 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 11:25:06,510 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.8 percent of original size [2021-08-13 11:25:06,510 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-08-13 11:25:06,529 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 11:25:06,530 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 11:25:06,538 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-08-13 11:25:06,538 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 11:25:06,549 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 11:25:06,549 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 11:25:06,550 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 11:25:06,551 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 11:25:06,551 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [624506227] [2021-08-13 11:25:06,551 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [624506227] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 11:25:06,551 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 11:25:06,551 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-08-13 11:25:06,551 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1342249269] [2021-08-13 11:25:06,552 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-08-13 11:25:06,552 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 11:25:06,553 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-13 11:25:06,553 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-08-13 11:25:06,554 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 84 [2021-08-13 11:25:06,554 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 118 places, 311 transitions, 2443 flow. Second operand has 6 states, 6 states have (on average 71.16666666666667) internal successors, (427), 6 states have internal predecessors, (427), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 11:25:06,554 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 11:25:06,554 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 84 [2021-08-13 11:25:06,554 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 11:25:06,912 INFO L129 PetriNetUnfolder]: 740/2087 cut-off events. [2021-08-13 11:25:06,913 INFO L130 PetriNetUnfolder]: For 504/792 co-relation queries the response was YES. [2021-08-13 11:25:06,924 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5847 conditions, 2087 events. 740/2087 cut-off events. For 504/792 co-relation queries the response was YES. Maximal size of possible extension queue 196. Compared 18466 event pairs, 41 based on Foata normal form. 4/1950 useless extension candidates. Maximal degree in co-relation 5795. Up to 439 conditions per place. [2021-08-13 11:25:06,935 INFO L132 encePairwiseOnDemand]: 74/84 looper letters, 24 selfloop transitions, 17 changer transitions 47/311 dead transitions. [2021-08-13 11:25:06,935 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 127 places, 311 transitions, 2333 flow [2021-08-13 11:25:06,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-08-13 11:25:06,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-08-13 11:25:06,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 743 transitions. [2021-08-13 11:25:06,937 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.8845238095238095 [2021-08-13 11:25:06,937 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 743 transitions. [2021-08-13 11:25:06,937 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 743 transitions. [2021-08-13 11:25:06,938 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 11:25:06,938 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 743 transitions. [2021-08-13 11:25:06,939 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 74.3) internal successors, (743), 10 states have internal predecessors, (743), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 11:25:06,942 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 84.0) internal successors, (924), 11 states have internal predecessors, (924), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 11:25:06,943 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 84.0) internal successors, (924), 11 states have internal predecessors, (924), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 11:25:06,943 INFO L348 CegarLoopForPetriNet]: 78 programPoint places, 49 predicate places. [2021-08-13 11:25:06,943 INFO L482 AbstractCegarLoop]: Abstraction has has 127 places, 311 transitions, 2333 flow [2021-08-13 11:25:06,944 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 71.16666666666667) internal successors, (427), 6 states have internal predecessors, (427), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 11:25:06,944 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 11:25:06,944 INFO L266 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 11:25:06,945 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-08-13 11:25:06,945 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-13 11:25:06,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 11:25:06,945 INFO L82 PathProgramCache]: Analyzing trace with hash -324384627, now seen corresponding path program 1 times [2021-08-13 11:25:06,945 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 11:25:06,946 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [408288692] [2021-08-13 11:25:06,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 11:25:06,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 11:25:07,004 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 11:25:07,004 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 11:25:07,005 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 11:25:07,006 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 11:25:07,008 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 11:25:07,009 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 11:25:07,014 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.8 percent of original size [2021-08-13 11:25:07,017 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-08-13 11:25:07,031 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 11:25:07,031 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 11:25:07,038 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-08-13 11:25:07,038 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 11:25:07,046 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 11:25:07,046 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 11:25:07,048 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 11:25:07,048 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 11:25:07,049 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [408288692] [2021-08-13 11:25:07,049 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [408288692] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 11:25:07,049 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 11:25:07,049 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-13 11:25:07,050 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [13223525] [2021-08-13 11:25:07,050 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-08-13 11:25:07,050 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 11:25:07,050 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-08-13 11:25:07,050 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-08-13 11:25:07,051 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 84 [2021-08-13 11:25:07,052 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 127 places, 311 transitions, 2333 flow. Second operand has 7 states, 7 states have (on average 71.14285714285714) internal successors, (498), 7 states have internal predecessors, (498), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 11:25:07,052 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 11:25:07,052 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 84 [2021-08-13 11:25:07,052 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 11:25:07,363 INFO L129 PetriNetUnfolder]: 423/1250 cut-off events. [2021-08-13 11:25:07,364 INFO L130 PetriNetUnfolder]: For 287/1014 co-relation queries the response was YES. [2021-08-13 11:25:07,370 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3528 conditions, 1250 events. 423/1250 cut-off events. For 287/1014 co-relation queries the response was YES. Maximal size of possible extension queue 186. Compared 10207 event pairs, 6 based on Foata normal form. 123/1276 useless extension candidates. Maximal degree in co-relation 3473. Up to 321 conditions per place. [2021-08-13 11:25:07,375 INFO L132 encePairwiseOnDemand]: 74/84 looper letters, 22 selfloop transitions, 44 changer transitions 94/235 dead transitions. [2021-08-13 11:25:07,375 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 139 places, 235 transitions, 1597 flow [2021-08-13 11:25:07,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-08-13 11:25:07,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-08-13 11:25:07,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 967 transitions. [2021-08-13 11:25:07,378 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.8855311355311355 [2021-08-13 11:25:07,378 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 967 transitions. [2021-08-13 11:25:07,378 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 967 transitions. [2021-08-13 11:25:07,379 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 11:25:07,379 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 967 transitions. [2021-08-13 11:25:07,381 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 74.38461538461539) internal successors, (967), 13 states have internal predecessors, (967), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 11:25:07,383 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 84.0) internal successors, (1176), 14 states have internal predecessors, (1176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 11:25:07,383 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 84.0) internal successors, (1176), 14 states have internal predecessors, (1176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 11:25:07,383 INFO L348 CegarLoopForPetriNet]: 78 programPoint places, 61 predicate places. [2021-08-13 11:25:07,383 INFO L482 AbstractCegarLoop]: Abstraction has has 139 places, 235 transitions, 1597 flow [2021-08-13 11:25:07,384 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 71.14285714285714) internal successors, (498), 7 states have internal predecessors, (498), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 11:25:07,384 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 11:25:07,384 INFO L266 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 11:25:07,384 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-08-13 11:25:07,384 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-13 11:25:07,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 11:25:07,385 INFO L82 PathProgramCache]: Analyzing trace with hash -1942961466, now seen corresponding path program 1 times [2021-08-13 11:25:07,385 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 11:25:07,385 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [325637560] [2021-08-13 11:25:07,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 11:25:07,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 11:25:07,419 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 11:25:07,419 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 11:25:07,420 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 11:25:07,420 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 11:25:07,422 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 11:25:07,423 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 11:25:07,426 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 11:25:07,426 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 11:25:07,431 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.8 percent of original size [2021-08-13 11:25:07,432 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-08-13 11:25:07,445 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 11:25:07,446 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 11:25:07,453 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-08-13 11:25:07,454 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 11:25:07,461 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 11:25:07,462 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 11:25:07,462 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 11:25:07,462 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 11:25:07,462 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [325637560] [2021-08-13 11:25:07,463 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [325637560] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 11:25:07,463 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 11:25:07,463 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-08-13 11:25:07,463 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2020299102] [2021-08-13 11:25:07,463 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-13 11:25:07,463 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 11:25:07,464 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-13 11:25:07,464 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-08-13 11:25:07,465 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 84 [2021-08-13 11:25:07,465 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 139 places, 235 transitions, 1597 flow. Second operand has 8 states, 8 states have (on average 71.125) internal successors, (569), 8 states have internal predecessors, (569), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 11:25:07,465 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 11:25:07,465 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 84 [2021-08-13 11:25:07,465 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 11:25:07,820 INFO L129 PetriNetUnfolder]: 373/1024 cut-off events. [2021-08-13 11:25:07,820 INFO L130 PetriNetUnfolder]: For 357/1519 co-relation queries the response was YES. [2021-08-13 11:25:07,825 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3441 conditions, 1024 events. 373/1024 cut-off events. For 357/1519 co-relation queries the response was YES. Maximal size of possible extension queue 187. Compared 8255 event pairs, 0 based on Foata normal form. 167/1106 useless extension candidates. Maximal degree in co-relation 3383. Up to 292 conditions per place. [2021-08-13 11:25:07,829 INFO L132 encePairwiseOnDemand]: 74/84 looper letters, 19 selfloop transitions, 48 changer transitions 47/185 dead transitions. [2021-08-13 11:25:07,829 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 133 places, 185 transitions, 1267 flow [2021-08-13 11:25:07,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-08-13 11:25:07,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2021-08-13 11:25:07,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1176 transitions. [2021-08-13 11:25:07,832 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.875 [2021-08-13 11:25:07,832 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 1176 transitions. [2021-08-13 11:25:07,833 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 1176 transitions. [2021-08-13 11:25:07,833 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 11:25:07,833 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 1176 transitions. [2021-08-13 11:25:07,836 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 73.5) internal successors, (1176), 16 states have internal predecessors, (1176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 11:25:07,838 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 84.0) internal successors, (1428), 17 states have internal predecessors, (1428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 11:25:07,838 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 84.0) internal successors, (1428), 17 states have internal predecessors, (1428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 11:25:07,838 INFO L348 CegarLoopForPetriNet]: 78 programPoint places, 55 predicate places. [2021-08-13 11:25:07,839 INFO L482 AbstractCegarLoop]: Abstraction has has 133 places, 185 transitions, 1267 flow [2021-08-13 11:25:07,839 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 71.125) internal successors, (569), 8 states have internal predecessors, (569), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 11:25:07,839 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 11:25:07,839 INFO L266 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 11:25:07,839 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-08-13 11:25:07,839 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-13 11:25:07,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 11:25:07,840 INFO L82 PathProgramCache]: Analyzing trace with hash -944412926, now seen corresponding path program 1 times [2021-08-13 11:25:07,840 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 11:25:07,840 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [233823647] [2021-08-13 11:25:07,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 11:25:07,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 11:25:07,878 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 11:25:07,878 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 11:25:07,879 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 11:25:07,879 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 11:25:07,882 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-08-13 11:25:07,883 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-08-13 11:25:07,892 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-08-13 11:25:07,892 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-08-13 11:25:07,908 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 11:25:07,908 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 11:25:07,916 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 11:25:07,917 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 11:25:07,926 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 11:25:07,926 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 11:25:07,927 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 11:25:07,927 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 11:25:07,927 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [233823647] [2021-08-13 11:25:07,927 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [233823647] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 11:25:07,927 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 11:25:07,927 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-13 11:25:07,927 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [304507906] [2021-08-13 11:25:07,928 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-08-13 11:25:07,928 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 11:25:07,928 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-08-13 11:25:07,928 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-08-13 11:25:07,929 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 84 [2021-08-13 11:25:07,930 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 133 places, 185 transitions, 1267 flow. Second operand has 7 states, 7 states have (on average 65.42857142857143) internal successors, (458), 7 states have internal predecessors, (458), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 11:25:07,930 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 11:25:07,930 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 84 [2021-08-13 11:25:07,930 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 11:25:08,175 INFO L129 PetriNetUnfolder]: 533/1434 cut-off events. [2021-08-13 11:25:08,175 INFO L130 PetriNetUnfolder]: For 580/1210 co-relation queries the response was YES. [2021-08-13 11:25:08,183 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4915 conditions, 1434 events. 533/1434 cut-off events. For 580/1210 co-relation queries the response was YES. Maximal size of possible extension queue 226. Compared 12169 event pairs, 0 based on Foata normal form. 11/1326 useless extension candidates. Maximal degree in co-relation 4850. Up to 411 conditions per place. [2021-08-13 11:25:08,189 INFO L132 encePairwiseOnDemand]: 71/84 looper letters, 26 selfloop transitions, 22 changer transitions 51/206 dead transitions. [2021-08-13 11:25:08,190 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 140 places, 206 transitions, 1555 flow [2021-08-13 11:25:08,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-13 11:25:08,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-08-13 11:25:08,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 540 transitions. [2021-08-13 11:25:08,191 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.8035714285714286 [2021-08-13 11:25:08,192 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 540 transitions. [2021-08-13 11:25:08,192 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 540 transitions. [2021-08-13 11:25:08,192 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 11:25:08,192 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 540 transitions. [2021-08-13 11:25:08,193 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 67.5) internal successors, (540), 8 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 11:25:08,194 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 84.0) internal successors, (756), 9 states have internal predecessors, (756), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 11:25:08,195 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 84.0) internal successors, (756), 9 states have internal predecessors, (756), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 11:25:08,195 INFO L348 CegarLoopForPetriNet]: 78 programPoint places, 62 predicate places. [2021-08-13 11:25:08,195 INFO L482 AbstractCegarLoop]: Abstraction has has 140 places, 206 transitions, 1555 flow [2021-08-13 11:25:08,195 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 65.42857142857143) internal successors, (458), 7 states have internal predecessors, (458), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 11:25:08,195 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 11:25:08,196 INFO L266 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 11:25:08,196 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-08-13 11:25:08,196 INFO L430 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-13 11:25:08,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 11:25:08,196 INFO L82 PathProgramCache]: Analyzing trace with hash 1657041954, now seen corresponding path program 2 times [2021-08-13 11:25:08,196 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 11:25:08,197 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1382665177] [2021-08-13 11:25:08,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 11:25:08,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 11:25:08,258 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 11:25:08,259 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 11:25:08,261 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 11:25:08,261 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 11:25:08,264 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 11:25:08,264 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 11:25:08,269 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-08-13 11:25:08,270 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-08-13 11:25:08,279 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-08-13 11:25:08,280 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-08-13 11:25:08,296 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 11:25:08,296 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 11:25:08,304 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 11:25:08,304 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 11:25:08,313 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 11:25:08,313 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 11:25:08,314 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 11:25:08,314 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 11:25:08,314 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1382665177] [2021-08-13 11:25:08,314 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1382665177] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 11:25:08,316 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 11:25:08,316 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-08-13 11:25:08,316 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1731302729] [2021-08-13 11:25:08,317 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-13 11:25:08,317 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 11:25:08,317 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-13 11:25:08,317 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-08-13 11:25:08,318 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 84 [2021-08-13 11:25:08,319 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 140 places, 206 transitions, 1555 flow. Second operand has 8 states, 8 states have (on average 65.125) internal successors, (521), 8 states have internal predecessors, (521), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 11:25:08,319 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 11:25:08,319 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 84 [2021-08-13 11:25:08,319 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 11:25:08,703 INFO L129 PetriNetUnfolder]: 773/2001 cut-off events. [2021-08-13 11:25:08,704 INFO L130 PetriNetUnfolder]: For 895/1860 co-relation queries the response was YES. [2021-08-13 11:25:08,713 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7008 conditions, 2001 events. 773/2001 cut-off events. For 895/1860 co-relation queries the response was YES. Maximal size of possible extension queue 321. Compared 18258 event pairs, 0 based on Foata normal form. 25/1863 useless extension candidates. Maximal degree in co-relation 6936. Up to 606 conditions per place. [2021-08-13 11:25:08,721 INFO L132 encePairwiseOnDemand]: 71/84 looper letters, 17 selfloop transitions, 15 changer transitions 79/218 dead transitions. [2021-08-13 11:25:08,721 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 151 places, 218 transitions, 1827 flow [2021-08-13 11:25:08,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-08-13 11:25:08,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-08-13 11:25:08,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 799 transitions. [2021-08-13 11:25:08,725 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.7926587301587301 [2021-08-13 11:25:08,725 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 799 transitions. [2021-08-13 11:25:08,726 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 799 transitions. [2021-08-13 11:25:08,726 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 11:25:08,727 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 799 transitions. [2021-08-13 11:25:08,730 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 66.58333333333333) internal successors, (799), 12 states have internal predecessors, (799), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 11:25:08,732 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 84.0) internal successors, (1092), 13 states have internal predecessors, (1092), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 11:25:08,732 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 84.0) internal successors, (1092), 13 states have internal predecessors, (1092), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 11:25:08,733 INFO L348 CegarLoopForPetriNet]: 78 programPoint places, 73 predicate places. [2021-08-13 11:25:08,733 INFO L482 AbstractCegarLoop]: Abstraction has has 151 places, 218 transitions, 1827 flow [2021-08-13 11:25:08,733 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 65.125) internal successors, (521), 8 states have internal predecessors, (521), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 11:25:08,733 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 11:25:08,733 INFO L266 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 11:25:08,733 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-08-13 11:25:08,734 INFO L430 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-13 11:25:08,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 11:25:08,734 INFO L82 PathProgramCache]: Analyzing trace with hash 1028058944, now seen corresponding path program 3 times [2021-08-13 11:25:08,734 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 11:25:08,734 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [524604234] [2021-08-13 11:25:08,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 11:25:08,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 11:25:08,791 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 11:25:08,791 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 11:25:08,793 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 11:25:08,796 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 11:25:08,799 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 11:25:08,801 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 11:25:08,806 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-08-13 11:25:08,819 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-08-13 11:25:08,832 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-08-13 11:25:08,834 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-08-13 11:25:08,850 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 11:25:08,851 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 11:25:08,860 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 11:25:08,860 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 11:25:08,870 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 11:25:08,870 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 11:25:08,870 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 11:25:08,871 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 11:25:08,871 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [524604234] [2021-08-13 11:25:08,871 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [524604234] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 11:25:08,871 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 11:25:08,871 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-08-13 11:25:08,871 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1324345542] [2021-08-13 11:25:08,872 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-13 11:25:08,872 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 11:25:08,872 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-13 11:25:08,873 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-08-13 11:25:08,873 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 84 [2021-08-13 11:25:08,874 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 151 places, 218 transitions, 1827 flow. Second operand has 8 states, 8 states have (on average 66.875) internal successors, (535), 8 states have internal predecessors, (535), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 11:25:08,874 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 11:25:08,874 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 84 [2021-08-13 11:25:08,874 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 11:25:09,353 INFO L129 PetriNetUnfolder]: 1408/3576 cut-off events. [2021-08-13 11:25:09,353 INFO L130 PetriNetUnfolder]: For 1656/3139 co-relation queries the response was YES. [2021-08-13 11:25:09,368 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12625 conditions, 3576 events. 1408/3576 cut-off events. For 1656/3139 co-relation queries the response was YES. Maximal size of possible extension queue 566. Compared 36544 event pairs, 0 based on Foata normal form. 10/3309 useless extension candidates. Maximal degree in co-relation 12547. Up to 1123 conditions per place. [2021-08-13 11:25:09,379 INFO L132 encePairwiseOnDemand]: 73/84 looper letters, 9 selfloop transitions, 6 changer transitions 179/252 dead transitions. [2021-08-13 11:25:09,379 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 161 places, 252 transitions, 2473 flow [2021-08-13 11:25:09,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-08-13 11:25:09,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-08-13 11:25:09,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 747 transitions. [2021-08-13 11:25:09,382 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.8084415584415584 [2021-08-13 11:25:09,382 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 747 transitions. [2021-08-13 11:25:09,382 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 747 transitions. [2021-08-13 11:25:09,382 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 11:25:09,382 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 747 transitions. [2021-08-13 11:25:09,383 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 67.9090909090909) internal successors, (747), 11 states have internal predecessors, (747), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 11:25:09,385 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 84.0) internal successors, (1008), 12 states have internal predecessors, (1008), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 11:25:09,386 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 84.0) internal successors, (1008), 12 states have internal predecessors, (1008), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 11:25:09,386 INFO L348 CegarLoopForPetriNet]: 78 programPoint places, 83 predicate places. [2021-08-13 11:25:09,386 INFO L482 AbstractCegarLoop]: Abstraction has has 161 places, 252 transitions, 2473 flow [2021-08-13 11:25:09,386 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 66.875) internal successors, (535), 8 states have internal predecessors, (535), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 11:25:09,386 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 11:25:09,387 INFO L266 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 11:25:09,387 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-08-13 11:25:09,387 INFO L430 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-13 11:25:09,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 11:25:09,388 INFO L82 PathProgramCache]: Analyzing trace with hash 1471653696, now seen corresponding path program 4 times [2021-08-13 11:25:09,388 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 11:25:09,389 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1780625337] [2021-08-13 11:25:09,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 11:25:09,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 11:25:09,434 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 11:25:09,434 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 11:25:09,434 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 11:25:09,435 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 11:25:09,437 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 11:25:09,438 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 11:25:09,442 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-08-13 11:25:09,443 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-08-13 11:25:09,453 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-08-13 11:25:09,454 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-08-13 11:25:09,470 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 11:25:09,471 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 11:25:09,479 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 11:25:09,479 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 11:25:09,490 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 11:25:09,491 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 11:25:09,491 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 11:25:09,491 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 11:25:09,491 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1780625337] [2021-08-13 11:25:09,491 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1780625337] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 11:25:09,492 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 11:25:09,492 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-08-13 11:25:09,492 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1908615378] [2021-08-13 11:25:09,492 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-13 11:25:09,492 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 11:25:09,493 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-13 11:25:09,493 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-08-13 11:25:09,494 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 84 [2021-08-13 11:25:09,494 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 161 places, 252 transitions, 2473 flow. Second operand has 8 states, 8 states have (on average 66.875) internal successors, (535), 8 states have internal predecessors, (535), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 11:25:09,494 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 11:25:09,494 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 84 [2021-08-13 11:25:09,494 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 11:25:10,069 INFO L129 PetriNetUnfolder]: 1765/4446 cut-off events. [2021-08-13 11:25:10,069 INFO L130 PetriNetUnfolder]: For 2147/4029 co-relation queries the response was YES. [2021-08-13 11:25:10,091 INFO L84 FinitePrefix]: Finished finitePrefix Result has 15821 conditions, 4446 events. 1765/4446 cut-off events. For 2147/4029 co-relation queries the response was YES. Maximal size of possible extension queue 704. Compared 47235 event pairs, 0 based on Foata normal form. 17/4107 useless extension candidates. Maximal degree in co-relation 15737. Up to 1414 conditions per place. [2021-08-13 11:25:10,096 INFO L132 encePairwiseOnDemand]: 72/84 looper letters, 0 selfloop transitions, 0 changer transitions 267/267 dead transitions. [2021-08-13 11:25:10,096 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 170 places, 267 transitions, 2947 flow [2021-08-13 11:25:10,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-08-13 11:25:10,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-08-13 11:25:10,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 815 transitions. [2021-08-13 11:25:10,098 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.808531746031746 [2021-08-13 11:25:10,098 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 815 transitions. [2021-08-13 11:25:10,098 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 815 transitions. [2021-08-13 11:25:10,098 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 11:25:10,098 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 815 transitions. [2021-08-13 11:25:10,099 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 67.91666666666667) internal successors, (815), 12 states have internal predecessors, (815), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 11:25:10,101 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 84.0) internal successors, (1092), 13 states have internal predecessors, (1092), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 11:25:10,101 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 84.0) internal successors, (1092), 13 states have internal predecessors, (1092), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 11:25:10,101 INFO L348 CegarLoopForPetriNet]: 78 programPoint places, 92 predicate places. [2021-08-13 11:25:10,101 INFO L482 AbstractCegarLoop]: Abstraction has has 170 places, 267 transitions, 2947 flow [2021-08-13 11:25:10,102 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 66.875) internal successors, (535), 8 states have internal predecessors, (535), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 11:25:10,102 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown