/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe-Before.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-lit/fkp2013-1.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-bf34d27 [2022-01-19 05:01:38,041 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-19 05:01:38,042 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-19 05:01:38,100 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-19 05:01:38,100 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-19 05:01:38,101 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-19 05:01:38,101 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-19 05:01:38,102 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-19 05:01:38,103 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-19 05:01:38,104 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-19 05:01:38,104 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-19 05:01:38,105 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-19 05:01:38,105 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-19 05:01:38,106 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-19 05:01:38,106 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-19 05:01:38,107 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-19 05:01:38,107 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-19 05:01:38,108 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-19 05:01:38,109 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-19 05:01:38,110 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-19 05:01:38,111 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-19 05:01:38,121 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-19 05:01:38,122 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-19 05:01:38,123 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-19 05:01:38,125 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-01-19 05:01:38,126 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-19 05:01:38,127 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-19 05:01:38,127 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-19 05:01:38,128 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-19 05:01:38,128 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-19 05:01:38,129 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-19 05:01:38,129 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-19 05:01:38,129 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-19 05:01:38,129 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-19 05:01:38,130 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-19 05:01:38,130 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-19 05:01:38,134 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-Before.epf [2022-01-19 05:01:38,152 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-19 05:01:38,152 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-19 05:01:38,152 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-01-19 05:01:38,152 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-01-19 05:01:38,153 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-19 05:01:38,153 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-19 05:01:38,153 INFO L138 SettingsManager]: * Use SBE=true [2022-01-19 05:01:38,153 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-19 05:01:38,153 INFO L138 SettingsManager]: * sizeof long=4 [2022-01-19 05:01:38,153 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-19 05:01:38,153 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-01-19 05:01:38,153 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-19 05:01:38,154 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-19 05:01:38,154 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-19 05:01:38,154 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-19 05:01:38,154 INFO L138 SettingsManager]: * sizeof long double=12 [2022-01-19 05:01:38,154 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-19 05:01:38,154 INFO L138 SettingsManager]: * Use constant arrays=true [2022-01-19 05:01:38,154 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-19 05:01:38,154 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-19 05:01:38,154 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-19 05:01:38,154 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-01-19 05:01:38,154 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-19 05:01:38,154 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-19 05:01:38,155 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-19 05:01:38,155 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-19 05:01:38,155 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-19 05:01:38,155 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-19 05:01:38,155 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-19 05:01:38,155 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-19 05:01:38,155 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-19 05:01:38,155 INFO L138 SettingsManager]: * When to check the insufficient erros location relative to the other error locations=BEFORE [2022-01-19 05:01:38,155 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-01-19 05:01:38,347 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-19 05:01:38,359 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-19 05:01:38,361 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-19 05:01:38,362 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-19 05:01:38,363 INFO L275 PluginConnector]: CDTParser initialized [2022-01-19 05:01:38,364 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-lit/fkp2013-1.i [2022-01-19 05:01:38,413 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/93703eb80/f825f9da166f41c4a88bbe1e9736c4cb/FLAG41c317b62 [2022-01-19 05:01:38,827 INFO L306 CDTParser]: Found 1 translation units. [2022-01-19 05:01:38,828 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-lit/fkp2013-1.i [2022-01-19 05:01:38,843 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/93703eb80/f825f9da166f41c4a88bbe1e9736c4cb/FLAG41c317b62 [2022-01-19 05:01:39,185 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/93703eb80/f825f9da166f41c4a88bbe1e9736c4cb [2022-01-19 05:01:39,186 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-19 05:01:39,188 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-01-19 05:01:39,191 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-19 05:01:39,191 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-19 05:01:39,193 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-19 05:01:39,193 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.01 05:01:39" (1/1) ... [2022-01-19 05:01:39,195 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@19e3b9d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 05:01:39, skipping insertion in model container [2022-01-19 05:01:39,195 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.01 05:01:39" (1/1) ... [2022-01-19 05:01:39,200 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-19 05:01:39,234 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-19 05:01:39,496 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-lit/fkp2013-1.i[30003,30016] [2022-01-19 05:01:39,511 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-19 05:01:39,517 INFO L203 MainTranslator]: Completed pre-run [2022-01-19 05:01:39,552 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-lit/fkp2013-1.i[30003,30016] [2022-01-19 05:01:39,558 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-19 05:01:39,582 INFO L208 MainTranslator]: Completed translation [2022-01-19 05:01:39,583 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 05:01:39 WrapperNode [2022-01-19 05:01:39,583 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-19 05:01:39,584 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-19 05:01:39,584 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-19 05:01:39,585 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-19 05:01:39,589 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 05:01:39" (1/1) ... [2022-01-19 05:01:39,614 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 05:01:39" (1/1) ... [2022-01-19 05:01:39,629 INFO L137 Inliner]: procedures = 172, calls = 17, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 56 [2022-01-19 05:01:39,629 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-19 05:01:39,630 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-19 05:01:39,630 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-19 05:01:39,630 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-19 05:01:39,635 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 05:01:39" (1/1) ... [2022-01-19 05:01:39,635 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 05:01:39" (1/1) ... [2022-01-19 05:01:39,637 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 05:01:39" (1/1) ... [2022-01-19 05:01:39,637 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 05:01:39" (1/1) ... [2022-01-19 05:01:39,641 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 05:01:39" (1/1) ... [2022-01-19 05:01:39,643 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 05:01:39" (1/1) ... [2022-01-19 05:01:39,644 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 05:01:39" (1/1) ... [2022-01-19 05:01:39,645 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-19 05:01:39,646 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-19 05:01:39,646 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-19 05:01:39,646 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-19 05:01:39,647 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 05:01:39" (1/1) ... [2022-01-19 05:01:39,652 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-19 05:01:39,663 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-19 05:01:39,683 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-01-19 05:01:39,689 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-01-19 05:01:39,708 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2022-01-19 05:01:39,708 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2022-01-19 05:01:39,709 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2022-01-19 05:01:39,709 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2022-01-19 05:01:39,709 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-01-19 05:01:39,709 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-19 05:01:39,709 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-01-19 05:01:39,709 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-19 05:01:39,709 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-01-19 05:01:39,709 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-19 05:01:39,709 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-19 05:01:39,710 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-01-19 05:01:39,816 INFO L234 CfgBuilder]: Building ICFG [2022-01-19 05:01:39,817 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-19 05:01:39,930 INFO L275 CfgBuilder]: Performing block encoding [2022-01-19 05:01:39,936 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-19 05:01:39,936 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-01-19 05:01:39,937 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.01 05:01:39 BoogieIcfgContainer [2022-01-19 05:01:39,938 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-19 05:01:39,939 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-19 05:01:39,939 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-19 05:01:39,941 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-19 05:01:39,942 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.01 05:01:39" (1/3) ... [2022-01-19 05:01:39,942 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f9786bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.01 05:01:39, skipping insertion in model container [2022-01-19 05:01:39,942 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 05:01:39" (2/3) ... [2022-01-19 05:01:39,942 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f9786bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.01 05:01:39, skipping insertion in model container [2022-01-19 05:01:39,943 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.01 05:01:39" (3/3) ... [2022-01-19 05:01:39,943 INFO L111 eAbstractionObserver]: Analyzing ICFG fkp2013-1.i [2022-01-19 05:01:39,947 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-19 05:01:39,947 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-19 05:01:39,947 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-01-19 05:01:39,971 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:39,971 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:39,971 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:39,971 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:39,971 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:39,972 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:39,972 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:39,972 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:39,972 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:39,972 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:39,972 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:39,972 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:39,972 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:39,973 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:39,973 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:39,973 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:39,973 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:39,973 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:39,974 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:39,974 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:39,974 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:39,974 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:39,974 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:39,974 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:39,974 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:39,975 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:39,975 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:39,975 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:39,975 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:39,975 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:39,975 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:39,976 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:39,976 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:39,976 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:39,976 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:39,976 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:39,976 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:39,976 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:39,977 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:39,977 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:39,977 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:39,977 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:39,979 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:39,980 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:39,980 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:39,980 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:39,980 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:39,982 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:39,982 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:39,982 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:39,982 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:39,982 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:39,982 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:39,983 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-01-19 05:01:40,014 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-19 05:01:40,019 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-01-19 05:01:40,019 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-01-19 05:01:40,026 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 72 places, 68 transitions, 146 flow [2022-01-19 05:01:40,054 INFO L129 PetriNetUnfolder]: 3/81 cut-off events. [2022-01-19 05:01:40,054 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-01-19 05:01:40,066 INFO L84 FinitePrefix]: Finished finitePrefix Result has 89 conditions, 81 events. 3/81 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 100 event pairs, 0 based on Foata normal form. 0/75 useless extension candidates. Maximal degree in co-relation 60. Up to 4 conditions per place. [2022-01-19 05:01:40,067 INFO L82 GeneralOperation]: Start removeDead. Operand has 72 places, 68 transitions, 146 flow [2022-01-19 05:01:40,070 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 71 places, 67 transitions, 142 flow [2022-01-19 05:01:40,078 INFO L129 PetriNetUnfolder]: 1/43 cut-off events. [2022-01-19 05:01:40,078 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-01-19 05:01:40,078 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 05:01:40,079 INFO L254 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] [2022-01-19 05:01:40,079 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-19 05:01:40,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 05:01:40,083 INFO L85 PathProgramCache]: Analyzing trace with hash 702214347, now seen corresponding path program 1 times [2022-01-19 05:01:40,089 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 05:01:40,090 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1411424002] [2022-01-19 05:01:40,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 05:01:40,090 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 05:01:40,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 05:01:40,288 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 05:01:40,289 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 05:01:40,289 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1411424002] [2022-01-19 05:01:40,289 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1411424002] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 05:01:40,289 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 05:01:40,290 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-19 05:01:40,291 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1943272823] [2022-01-19 05:01:40,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 05:01:40,297 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-19 05:01:40,297 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 05:01:40,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-19 05:01:40,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-19 05:01:40,321 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 54 out of 68 [2022-01-19 05:01:40,324 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 67 transitions, 142 flow. Second operand has 5 states, 5 states have (on average 55.4) internal successors, (277), 5 states have internal predecessors, (277), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:01:40,324 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 05:01:40,324 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 54 of 68 [2022-01-19 05:01:40,325 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 05:01:40,427 INFO L129 PetriNetUnfolder]: 11/142 cut-off events. [2022-01-19 05:01:40,427 INFO L130 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2022-01-19 05:01:40,428 INFO L84 FinitePrefix]: Finished finitePrefix Result has 198 conditions, 142 events. 11/142 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 468 event pairs, 2 based on Foata normal form. 20/155 useless extension candidates. Maximal degree in co-relation 165. Up to 10 conditions per place. [2022-01-19 05:01:40,429 INFO L132 encePairwiseOnDemand]: 60/68 looper letters, 8 selfloop transitions, 2 changer transitions 17/77 dead transitions. [2022-01-19 05:01:40,429 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 77 transitions, 216 flow [2022-01-19 05:01:40,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-19 05:01:40,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-01-19 05:01:40,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 466 transitions. [2022-01-19 05:01:40,444 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8566176470588235 [2022-01-19 05:01:40,445 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 466 transitions. [2022-01-19 05:01:40,445 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 466 transitions. [2022-01-19 05:01:40,446 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 05:01:40,448 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 466 transitions. [2022-01-19 05:01:40,450 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 58.25) internal successors, (466), 8 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) [2022-01-19 05:01:40,455 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 68.0) internal successors, (612), 9 states have internal predecessors, (612), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:01:40,455 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 68.0) internal successors, (612), 9 states have internal predecessors, (612), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:01:40,457 INFO L186 Difference]: Start difference. First operand has 71 places, 67 transitions, 142 flow. Second operand 8 states and 466 transitions. [2022-01-19 05:01:40,457 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 77 transitions, 216 flow [2022-01-19 05:01:40,459 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 77 transitions, 215 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-01-19 05:01:40,461 INFO L242 Difference]: Finished difference. Result has 81 places, 60 transitions, 143 flow [2022-01-19 05:01:40,462 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=68, PETRI_DIFFERENCE_MINUEND_FLOW=135, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=62, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=143, PETRI_PLACES=81, PETRI_TRANSITIONS=60} [2022-01-19 05:01:40,465 INFO L334 CegarLoopForPetriNet]: 71 programPoint places, 10 predicate places. [2022-01-19 05:01:40,465 INFO L470 AbstractCegarLoop]: Abstraction has has 81 places, 60 transitions, 143 flow [2022-01-19 05:01:40,465 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 55.4) internal successors, (277), 5 states have internal predecessors, (277), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:01:40,465 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 05:01:40,466 INFO L254 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] [2022-01-19 05:01:40,466 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-19 05:01:40,466 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-19 05:01:40,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 05:01:40,466 INFO L85 PathProgramCache]: Analyzing trace with hash 402150417, now seen corresponding path program 1 times [2022-01-19 05:01:40,467 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 05:01:40,467 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1273936812] [2022-01-19 05:01:40,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 05:01:40,467 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 05:01:40,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 05:01:40,545 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 05:01:40,545 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 05:01:40,545 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1273936812] [2022-01-19 05:01:40,545 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1273936812] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 05:01:40,546 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 05:01:40,546 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-19 05:01:40,546 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1954118154] [2022-01-19 05:01:40,546 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 05:01:40,547 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-19 05:01:40,547 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 05:01:40,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-19 05:01:40,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-01-19 05:01:40,548 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 53 out of 68 [2022-01-19 05:01:40,549 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 60 transitions, 143 flow. Second operand has 7 states, 7 states have (on average 54.57142857142857) internal successors, (382), 7 states have internal predecessors, (382), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:01:40,549 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 05:01:40,549 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 53 of 68 [2022-01-19 05:01:40,549 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 05:01:40,595 INFO L129 PetriNetUnfolder]: 0/71 cut-off events. [2022-01-19 05:01:40,595 INFO L130 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2022-01-19 05:01:40,595 INFO L84 FinitePrefix]: Finished finitePrefix Result has 101 conditions, 71 events. 0/71 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 71 event pairs, 0 based on Foata normal form. 1/70 useless extension candidates. Maximal degree in co-relation 0. Up to 5 conditions per place. [2022-01-19 05:01:40,595 INFO L132 encePairwiseOnDemand]: 62/68 looper letters, 0 selfloop transitions, 0 changer transitions 58/58 dead transitions. [2022-01-19 05:01:40,595 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 58 transitions, 155 flow [2022-01-19 05:01:40,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-19 05:01:40,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-01-19 05:01:40,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 382 transitions. [2022-01-19 05:01:40,598 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8025210084033614 [2022-01-19 05:01:40,598 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 382 transitions. [2022-01-19 05:01:40,598 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 382 transitions. [2022-01-19 05:01:40,598 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 05:01:40,599 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 382 transitions. [2022-01-19 05:01:40,600 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 54.57142857142857) internal successors, (382), 7 states have internal predecessors, (382), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:01:40,601 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 68.0) internal successors, (544), 8 states have internal predecessors, (544), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:01:40,602 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 68.0) internal successors, (544), 8 states have internal predecessors, (544), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:01:40,602 INFO L186 Difference]: Start difference. First operand has 81 places, 60 transitions, 143 flow. Second operand 7 states and 382 transitions. [2022-01-19 05:01:40,603 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 58 transitions, 155 flow [2022-01-19 05:01:40,605 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 58 transitions, 147 flow, removed 2 selfloop flow, removed 4 redundant places. [2022-01-19 05:01:40,606 INFO L242 Difference]: Finished difference. Result has 72 places, 0 transitions, 0 flow [2022-01-19 05:01:40,606 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=68, PETRI_DIFFERENCE_MINUEND_FLOW=127, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=0, PETRI_PLACES=72, PETRI_TRANSITIONS=0} [2022-01-19 05:01:40,607 INFO L334 CegarLoopForPetriNet]: 71 programPoint places, 1 predicate places. [2022-01-19 05:01:40,607 INFO L470 AbstractCegarLoop]: Abstraction has has 72 places, 0 transitions, 0 flow [2022-01-19 05:01:40,607 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 54.57142857142857) internal successors, (382), 7 states have internal predecessors, (382), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:01:40,609 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2022-01-19 05:01:40,609 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2022-01-19 05:01:40,610 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-19 05:01:40,614 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2022-01-19 05:01:40,615 INFO L309 ceAbstractionStarter]: Result for error location AllErrorsAtOnce was SAFE,SAFE (1/2) [2022-01-19 05:01:40,624 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2022-01-19 05:01:40,629 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-01-19 05:01:40,629 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-01-19 05:01:40,633 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 72 places, 68 transitions, 146 flow [2022-01-19 05:01:40,644 INFO L129 PetriNetUnfolder]: 3/81 cut-off events. [2022-01-19 05:01:40,645 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-01-19 05:01:40,645 INFO L84 FinitePrefix]: Finished finitePrefix Result has 89 conditions, 81 events. 3/81 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 100 event pairs, 0 based on Foata normal form. 0/75 useless extension candidates. Maximal degree in co-relation 60. Up to 4 conditions per place. [2022-01-19 05:01:40,645 INFO L82 GeneralOperation]: Start removeDead. Operand has 72 places, 68 transitions, 146 flow [2022-01-19 05:01:40,646 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 71 places, 67 transitions, 142 flow [2022-01-19 05:01:40,656 INFO L129 PetriNetUnfolder]: 3/76 cut-off events. [2022-01-19 05:01:40,656 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-01-19 05:01:40,657 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 05:01:40,657 INFO L254 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 05:01:40,657 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1INUSE_VIOLATION === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-01-19 05:01:40,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 05:01:40,658 INFO L85 PathProgramCache]: Analyzing trace with hash 30111252, now seen corresponding path program 1 times [2022-01-19 05:01:40,658 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 05:01:40,658 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [334172286] [2022-01-19 05:01:40,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 05:01:40,658 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 05:01:40,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-19 05:01:40,693 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-01-19 05:01:40,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-19 05:01:40,734 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-01-19 05:01:40,734 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-01-19 05:01:40,734 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATION (1 of 2 remaining) [2022-01-19 05:01:40,734 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION (0 of 2 remaining) [2022-01-19 05:01:40,735 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-19 05:01:40,735 INFO L732 BasicCegarLoop]: Path program histogram: [1] [2022-01-19 05:01:40,736 INFO L309 ceAbstractionStarter]: Result for error location InUseError was UNSAFE,UNKNOWN (2/2) [2022-01-19 05:01:40,736 WARN L235 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2022-01-19 05:01:40,737 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2022-01-19 05:01:40,755 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:40,756 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:40,756 WARN L322 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:40,756 WARN L322 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:40,756 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:40,756 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:40,756 WARN L322 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:40,756 WARN L322 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:40,756 WARN L322 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:40,757 WARN L322 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:40,757 WARN L322 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:40,757 WARN L322 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:40,757 WARN L322 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:40,757 WARN L322 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:40,758 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:40,758 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:40,758 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:40,758 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:40,758 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:40,758 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:40,758 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:40,758 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:40,759 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:40,759 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:40,759 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:40,759 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:40,759 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:40,759 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:40,759 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:40,759 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:40,760 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:40,760 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:40,760 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:40,760 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:40,760 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:40,760 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:40,761 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:40,761 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:40,761 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:40,761 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:40,762 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:40,762 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:40,762 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:40,762 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:40,762 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:40,763 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:40,763 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:40,763 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:40,763 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:40,763 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:40,763 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:40,764 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:40,764 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:40,764 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:40,764 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:40,764 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:40,764 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:40,765 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:40,765 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:40,765 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:40,765 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:40,765 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:40,765 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:40,765 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:40,765 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:40,765 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:40,766 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:40,766 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:40,766 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:40,766 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:40,766 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:40,766 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:40,766 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:40,766 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:40,767 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:40,767 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:40,767 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:40,767 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:40,767 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:40,767 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:40,767 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:40,768 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:40,768 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:40,768 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:40,769 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:40,769 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:40,769 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:40,769 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:40,769 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:40,770 WARN L322 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:40,770 WARN L322 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:40,770 WARN L322 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:40,770 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:40,770 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:40,771 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:40,771 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:40,771 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:40,771 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:40,771 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:40,771 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:40,771 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:40,772 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:40,772 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:40,772 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:40,772 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:40,772 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:40,772 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-01-19 05:01:40,773 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-19 05:01:40,774 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-01-19 05:01:40,774 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-01-19 05:01:40,775 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 96 places, 89 transitions, 202 flow [2022-01-19 05:01:40,783 INFO L129 PetriNetUnfolder]: 4/107 cut-off events. [2022-01-19 05:01:40,783 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-01-19 05:01:40,789 INFO L84 FinitePrefix]: Finished finitePrefix Result has 121 conditions, 107 events. 4/107 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 144 event pairs, 0 based on Foata normal form. 0/99 useless extension candidates. Maximal degree in co-relation 116. Up to 6 conditions per place. [2022-01-19 05:01:40,790 INFO L82 GeneralOperation]: Start removeDead. Operand has 96 places, 89 transitions, 202 flow [2022-01-19 05:01:40,791 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 80 places, 74 transitions, 163 flow [2022-01-19 05:01:40,794 INFO L129 PetriNetUnfolder]: 1/43 cut-off events. [2022-01-19 05:01:40,794 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-01-19 05:01:40,794 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 05:01:40,794 INFO L254 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] [2022-01-19 05:01:40,794 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-19 05:01:40,795 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 05:01:40,795 INFO L85 PathProgramCache]: Analyzing trace with hash -980089482, now seen corresponding path program 1 times [2022-01-19 05:01:40,795 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 05:01:40,795 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1108738496] [2022-01-19 05:01:40,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 05:01:40,796 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 05:01:40,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 05:01:40,847 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 05:01:40,847 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 05:01:40,847 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1108738496] [2022-01-19 05:01:40,848 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1108738496] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 05:01:40,848 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 05:01:40,848 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-19 05:01:40,848 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [518530854] [2022-01-19 05:01:40,848 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 05:01:40,848 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-19 05:01:40,848 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 05:01:40,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-19 05:01:40,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-19 05:01:40,849 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 89 [2022-01-19 05:01:40,850 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 74 transitions, 163 flow. Second operand has 5 states, 5 states have (on average 69.4) internal successors, (347), 5 states have internal predecessors, (347), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:01:40,850 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 05:01:40,850 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 89 [2022-01-19 05:01:40,850 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 05:01:40,973 INFO L129 PetriNetUnfolder]: 97/386 cut-off events. [2022-01-19 05:01:40,974 INFO L130 PetriNetUnfolder]: For 67/67 co-relation queries the response was YES. [2022-01-19 05:01:40,980 INFO L84 FinitePrefix]: Finished finitePrefix Result has 659 conditions, 386 events. 97/386 cut-off events. For 67/67 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 2114 event pairs, 6 based on Foata normal form. 95/459 useless extension candidates. Maximal degree in co-relation 625. Up to 55 conditions per place. [2022-01-19 05:01:40,981 INFO L132 encePairwiseOnDemand]: 80/89 looper letters, 15 selfloop transitions, 3 changer transitions 38/110 dead transitions. [2022-01-19 05:01:40,981 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 110 transitions, 377 flow [2022-01-19 05:01:40,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-19 05:01:40,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-01-19 05:01:40,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 607 transitions. [2022-01-19 05:01:40,983 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8525280898876404 [2022-01-19 05:01:40,983 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 607 transitions. [2022-01-19 05:01:40,983 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 607 transitions. [2022-01-19 05:01:40,984 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 05:01:40,984 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 607 transitions. [2022-01-19 05:01:40,985 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 75.875) internal successors, (607), 8 states have internal predecessors, (607), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:01:40,986 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 89.0) internal successors, (801), 9 states have internal predecessors, (801), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:01:40,986 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 89.0) internal successors, (801), 9 states have internal predecessors, (801), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:01:40,986 INFO L186 Difference]: Start difference. First operand has 80 places, 74 transitions, 163 flow. Second operand 8 states and 607 transitions. [2022-01-19 05:01:40,986 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 86 places, 110 transitions, 377 flow [2022-01-19 05:01:40,988 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 85 places, 110 transitions, 374 flow, removed 1 selfloop flow, removed 1 redundant places. [2022-01-19 05:01:40,989 INFO L242 Difference]: Finished difference. Result has 90 places, 69 transitions, 181 flow [2022-01-19 05:01:40,990 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=154, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=71, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=181, PETRI_PLACES=90, PETRI_TRANSITIONS=69} [2022-01-19 05:01:40,991 INFO L334 CegarLoopForPetriNet]: 80 programPoint places, 10 predicate places. [2022-01-19 05:01:40,991 INFO L470 AbstractCegarLoop]: Abstraction has has 90 places, 69 transitions, 181 flow [2022-01-19 05:01:40,992 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 69.4) internal successors, (347), 5 states have internal predecessors, (347), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:01:40,992 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 05:01:40,992 INFO L254 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] [2022-01-19 05:01:40,992 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-19 05:01:40,993 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-19 05:01:40,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 05:01:40,993 INFO L85 PathProgramCache]: Analyzing trace with hash 692131209, now seen corresponding path program 1 times [2022-01-19 05:01:40,993 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 05:01:40,994 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2020534314] [2022-01-19 05:01:40,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 05:01:40,994 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 05:01:41,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 05:01:41,072 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 05:01:41,072 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 05:01:41,073 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2020534314] [2022-01-19 05:01:41,073 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2020534314] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 05:01:41,073 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 05:01:41,073 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-19 05:01:41,073 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [578904922] [2022-01-19 05:01:41,073 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 05:01:41,074 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-19 05:01:41,074 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 05:01:41,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-19 05:01:41,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-01-19 05:01:41,076 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 89 [2022-01-19 05:01:41,076 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 69 transitions, 181 flow. Second operand has 7 states, 7 states have (on average 68.57142857142857) internal successors, (480), 7 states have internal predecessors, (480), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:01:41,076 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 05:01:41,077 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 89 [2022-01-19 05:01:41,077 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 05:01:41,182 INFO L129 PetriNetUnfolder]: 30/258 cut-off events. [2022-01-19 05:01:41,182 INFO L130 PetriNetUnfolder]: For 108/108 co-relation queries the response was YES. [2022-01-19 05:01:41,183 INFO L84 FinitePrefix]: Finished finitePrefix Result has 494 conditions, 258 events. 30/258 cut-off events. For 108/108 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 1179 event pairs, 10 based on Foata normal form. 5/255 useless extension candidates. Maximal degree in co-relation 454. Up to 34 conditions per place. [2022-01-19 05:01:41,184 INFO L132 encePairwiseOnDemand]: 82/89 looper letters, 24 selfloop transitions, 7 changer transitions 11/95 dead transitions. [2022-01-19 05:01:41,184 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 95 transitions, 386 flow [2022-01-19 05:01:41,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-19 05:01:41,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-01-19 05:01:41,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 714 transitions. [2022-01-19 05:01:41,186 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.802247191011236 [2022-01-19 05:01:41,186 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 714 transitions. [2022-01-19 05:01:41,186 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 714 transitions. [2022-01-19 05:01:41,187 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 05:01:41,187 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 714 transitions. [2022-01-19 05:01:41,188 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 71.4) internal successors, (714), 10 states have internal predecessors, (714), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:01:41,190 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 89.0) internal successors, (979), 11 states have internal predecessors, (979), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:01:41,190 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 89.0) internal successors, (979), 11 states have internal predecessors, (979), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:01:41,190 INFO L186 Difference]: Start difference. First operand has 90 places, 69 transitions, 181 flow. Second operand 10 states and 714 transitions. [2022-01-19 05:01:41,190 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 95 transitions, 386 flow [2022-01-19 05:01:41,193 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 87 places, 95 transitions, 360 flow, removed 11 selfloop flow, removed 3 redundant places. [2022-01-19 05:01:41,195 INFO L242 Difference]: Finished difference. Result has 94 places, 72 transitions, 223 flow [2022-01-19 05:01:41,195 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=172, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=69, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=63, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=223, PETRI_PLACES=94, PETRI_TRANSITIONS=72} [2022-01-19 05:01:41,197 INFO L334 CegarLoopForPetriNet]: 80 programPoint places, 14 predicate places. [2022-01-19 05:01:41,197 INFO L470 AbstractCegarLoop]: Abstraction has has 94 places, 72 transitions, 223 flow [2022-01-19 05:01:41,197 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 68.57142857142857) internal successors, (480), 7 states have internal predecessors, (480), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:01:41,198 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 05:01:41,198 INFO L254 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 05:01:41,198 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-19 05:01:41,198 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-19 05:01:41,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 05:01:41,198 INFO L85 PathProgramCache]: Analyzing trace with hash -179652372, now seen corresponding path program 1 times [2022-01-19 05:01:41,198 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 05:01:41,199 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [517151560] [2022-01-19 05:01:41,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 05:01:41,199 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 05:01:41,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 05:01:41,263 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-01-19 05:01:41,263 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 05:01:41,263 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [517151560] [2022-01-19 05:01:41,263 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [517151560] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 05:01:41,263 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 05:01:41,264 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-19 05:01:41,264 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [772515856] [2022-01-19 05:01:41,264 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 05:01:41,264 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-19 05:01:41,264 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 05:01:41,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-19 05:01:41,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-01-19 05:01:41,265 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 89 [2022-01-19 05:01:41,266 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 72 transitions, 223 flow. Second operand has 7 states, 7 states have (on average 68.71428571428571) internal successors, (481), 7 states have internal predecessors, (481), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:01:41,266 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 05:01:41,266 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 89 [2022-01-19 05:01:41,266 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 05:01:41,349 INFO L129 PetriNetUnfolder]: 12/190 cut-off events. [2022-01-19 05:01:41,349 INFO L130 PetriNetUnfolder]: For 164/164 co-relation queries the response was YES. [2022-01-19 05:01:41,350 INFO L84 FinitePrefix]: Finished finitePrefix Result has 394 conditions, 190 events. 12/190 cut-off events. For 164/164 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 715 event pairs, 2 based on Foata normal form. 6/191 useless extension candidates. Maximal degree in co-relation 367. Up to 23 conditions per place. [2022-01-19 05:01:41,350 INFO L132 encePairwiseOnDemand]: 82/89 looper letters, 19 selfloop transitions, 5 changer transitions 16/93 dead transitions. [2022-01-19 05:01:41,350 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 93 transitions, 438 flow [2022-01-19 05:01:41,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-19 05:01:41,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-01-19 05:01:41,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 708 transitions. [2022-01-19 05:01:41,352 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7955056179775281 [2022-01-19 05:01:41,352 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 708 transitions. [2022-01-19 05:01:41,352 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 708 transitions. [2022-01-19 05:01:41,352 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 05:01:41,352 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 708 transitions. [2022-01-19 05:01:41,354 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 70.8) internal successors, (708), 10 states have internal predecessors, (708), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:01:41,355 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 89.0) internal successors, (979), 11 states have internal predecessors, (979), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:01:41,355 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 89.0) internal successors, (979), 11 states have internal predecessors, (979), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:01:41,355 INFO L186 Difference]: Start difference. First operand has 94 places, 72 transitions, 223 flow. Second operand 10 states and 708 transitions. [2022-01-19 05:01:41,355 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 93 transitions, 438 flow [2022-01-19 05:01:41,357 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 93 transitions, 387 flow, removed 22 selfloop flow, removed 6 redundant places. [2022-01-19 05:01:41,358 INFO L242 Difference]: Finished difference. Result has 100 places, 71 transitions, 217 flow [2022-01-19 05:01:41,358 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=201, PETRI_DIFFERENCE_MINUEND_PLACES=84, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=72, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=67, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=217, PETRI_PLACES=100, PETRI_TRANSITIONS=71} [2022-01-19 05:01:41,359 INFO L334 CegarLoopForPetriNet]: 80 programPoint places, 20 predicate places. [2022-01-19 05:01:41,359 INFO L470 AbstractCegarLoop]: Abstraction has has 100 places, 71 transitions, 217 flow [2022-01-19 05:01:41,359 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 68.71428571428571) internal successors, (481), 7 states have internal predecessors, (481), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:01:41,359 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 05:01:41,359 INFO L254 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 05:01:41,359 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-19 05:01:41,360 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-19 05:01:41,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 05:01:41,360 INFO L85 PathProgramCache]: Analyzing trace with hash 262273642, now seen corresponding path program 1 times [2022-01-19 05:01:41,360 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 05:01:41,360 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1422220714] [2022-01-19 05:01:41,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 05:01:41,360 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 05:01:41,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 05:01:41,419 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 05:01:41,419 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 05:01:41,419 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1422220714] [2022-01-19 05:01:41,419 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1422220714] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-19 05:01:41,419 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [408404273] [2022-01-19 05:01:41,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 05:01:41,420 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-19 05:01:41,420 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-19 05:01:41,421 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-19 05:01:41,422 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-01-19 05:01:41,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 05:01:41,491 INFO L263 TraceCheckSpWp]: Trace formula consists of 163 conjuncts, 8 conjunts are in the unsatisfiable core [2022-01-19 05:01:41,493 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-19 05:01:41,641 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 05:01:41,642 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-19 05:01:41,804 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 05:01:41,806 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [408404273] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-19 05:01:41,806 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-19 05:01:41,806 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2022-01-19 05:01:41,806 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [539896352] [2022-01-19 05:01:41,807 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-19 05:01:41,808 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-19 05:01:41,808 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 05:01:41,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-19 05:01:41,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=246, Unknown=0, NotChecked=0, Total=306 [2022-01-19 05:01:41,810 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 89 [2022-01-19 05:01:41,811 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 100 places, 71 transitions, 217 flow. Second operand has 18 states, 18 states have (on average 68.0) internal successors, (1224), 18 states have internal predecessors, (1224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:01:41,811 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 05:01:41,811 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 89 [2022-01-19 05:01:41,811 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 05:01:41,967 INFO L129 PetriNetUnfolder]: 9/151 cut-off events. [2022-01-19 05:01:41,967 INFO L130 PetriNetUnfolder]: For 69/69 co-relation queries the response was YES. [2022-01-19 05:01:41,968 INFO L84 FinitePrefix]: Finished finitePrefix Result has 282 conditions, 151 events. 9/151 cut-off events. For 69/69 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 411 event pairs, 2 based on Foata normal form. 2/148 useless extension candidates. Maximal degree in co-relation 264. Up to 11 conditions per place. [2022-01-19 05:01:41,968 INFO L132 encePairwiseOnDemand]: 81/89 looper letters, 0 selfloop transitions, 0 changer transitions 80/80 dead transitions. [2022-01-19 05:01:41,968 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 80 transitions, 315 flow [2022-01-19 05:01:41,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-01-19 05:01:41,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2022-01-19 05:01:41,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1087 transitions. [2022-01-19 05:01:41,971 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7633426966292135 [2022-01-19 05:01:41,971 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 1087 transitions. [2022-01-19 05:01:41,971 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 1087 transitions. [2022-01-19 05:01:41,971 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 05:01:41,971 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 1087 transitions. [2022-01-19 05:01:41,974 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 67.9375) internal successors, (1087), 16 states have internal predecessors, (1087), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:01:41,976 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 89.0) internal successors, (1513), 17 states have internal predecessors, (1513), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:01:41,977 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 89.0) internal successors, (1513), 17 states have internal predecessors, (1513), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:01:41,977 INFO L186 Difference]: Start difference. First operand has 100 places, 71 transitions, 217 flow. Second operand 16 states and 1087 transitions. [2022-01-19 05:01:41,977 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 109 places, 80 transitions, 315 flow [2022-01-19 05:01:41,979 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 103 places, 80 transitions, 291 flow, removed 10 selfloop flow, removed 6 redundant places. [2022-01-19 05:01:41,979 INFO L242 Difference]: Finished difference. Result has 103 places, 0 transitions, 0 flow [2022-01-19 05:01:41,980 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=189, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=69, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=69, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=0, PETRI_PLACES=103, PETRI_TRANSITIONS=0} [2022-01-19 05:01:41,980 INFO L334 CegarLoopForPetriNet]: 80 programPoint places, 23 predicate places. [2022-01-19 05:01:41,981 INFO L470 AbstractCegarLoop]: Abstraction has has 103 places, 0 transitions, 0 flow [2022-01-19 05:01:41,981 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 68.0) internal successors, (1224), 18 states have internal predecessors, (1224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:01:41,981 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2022-01-19 05:01:41,982 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (1 of 3 remaining) [2022-01-19 05:01:41,982 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 3 remaining) [2022-01-19 05:01:42,002 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-01-19 05:01:42,200 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-19 05:01:42,200 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-01-19 05:01:42,201 INFO L309 ceAbstractionStarter]: Result for error location AllErrorsAtOnce was SAFE,SAFE,SAFE (1/2) [2022-01-19 05:01:42,202 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2022-01-19 05:01:42,202 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-01-19 05:01:42,202 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-01-19 05:01:42,203 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 96 places, 89 transitions, 202 flow [2022-01-19 05:01:42,220 INFO L129 PetriNetUnfolder]: 4/107 cut-off events. [2022-01-19 05:01:42,221 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-01-19 05:01:42,221 INFO L84 FinitePrefix]: Finished finitePrefix Result has 121 conditions, 107 events. 4/107 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 144 event pairs, 0 based on Foata normal form. 0/99 useless extension candidates. Maximal degree in co-relation 116. Up to 6 conditions per place. [2022-01-19 05:01:42,221 INFO L82 GeneralOperation]: Start removeDead. Operand has 96 places, 89 transitions, 202 flow [2022-01-19 05:01:42,222 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 80 places, 74 transitions, 163 flow [2022-01-19 05:01:42,226 INFO L129 PetriNetUnfolder]: 4/102 cut-off events. [2022-01-19 05:01:42,226 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-01-19 05:01:42,226 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 05:01:42,226 INFO L254 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 05:01:42,226 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-01-19 05:01:42,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 05:01:42,227 INFO L85 PathProgramCache]: Analyzing trace with hash -196327125, now seen corresponding path program 1 times [2022-01-19 05:01:42,227 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 05:01:42,227 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [171987668] [2022-01-19 05:01:42,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 05:01:42,227 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 05:01:42,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-19 05:01:42,238 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-01-19 05:01:42,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-19 05:01:42,249 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-01-19 05:01:42,250 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-01-19 05:01:42,250 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 2 remaining) [2022-01-19 05:01:42,250 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATION (0 of 2 remaining) [2022-01-19 05:01:42,250 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-19 05:01:42,250 INFO L732 BasicCegarLoop]: Path program histogram: [1] [2022-01-19 05:01:42,251 INFO L309 ceAbstractionStarter]: Result for error location InUseError was UNSAFE,UNKNOWN (2/2) [2022-01-19 05:01:42,251 WARN L235 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2022-01-19 05:01:42,251 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2022-01-19 05:01:42,261 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:42,261 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:42,261 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:42,261 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:42,261 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:42,261 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:42,261 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:42,261 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:42,261 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:42,261 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:42,261 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:42,262 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:42,262 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:42,262 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:42,262 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:42,262 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:42,262 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:42,262 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:42,262 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread2of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:42,262 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread2of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:42,262 WARN L322 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:42,263 WARN L322 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:42,263 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread2of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:42,263 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread2of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:42,263 WARN L322 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:42,263 WARN L322 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:42,263 WARN L322 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:42,263 WARN L322 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:42,263 WARN L322 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:42,263 WARN L322 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:42,263 WARN L322 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:42,263 WARN L322 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:42,263 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:42,264 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:42,264 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:42,264 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:42,264 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread3of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:42,264 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread3of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:42,264 WARN L322 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:42,264 WARN L322 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:42,264 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread3of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:42,264 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread3of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:42,264 WARN L322 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:42,264 WARN L322 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:42,264 WARN L322 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:42,264 WARN L322 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:42,264 WARN L322 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:42,264 WARN L322 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:42,264 WARN L322 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:42,265 WARN L322 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:42,265 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:42,265 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:42,265 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:42,265 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:42,265 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:42,265 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:42,265 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:42,265 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:42,265 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:42,265 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:42,266 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:42,266 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:42,266 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:42,266 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:42,266 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:42,266 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:42,266 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:42,266 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:42,266 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:42,266 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:42,266 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:42,266 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:42,266 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:42,266 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:42,266 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:42,267 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:42,267 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:42,267 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:42,267 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:42,267 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:42,267 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:42,267 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:42,267 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:42,267 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:42,267 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:42,267 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:42,267 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:42,267 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:42,268 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:42,268 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:42,268 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:42,268 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:42,268 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:42,268 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:42,268 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:42,268 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:42,268 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:42,268 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:42,268 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:42,268 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:42,268 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:42,269 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:42,269 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:42,269 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:42,269 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:42,269 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:42,269 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:42,269 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:42,269 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:42,269 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:42,269 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:42,269 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:42,269 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:42,269 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:42,269 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:42,269 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:42,270 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:42,270 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:42,270 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:42,270 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:42,270 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:42,270 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:42,270 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:42,270 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:42,270 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:42,270 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:42,270 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:42,270 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:42,271 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:42,271 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:42,271 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:42,271 WARN L322 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:42,271 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:42,271 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:42,271 WARN L322 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:42,271 WARN L322 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:42,271 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:42,272 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:42,272 WARN L322 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:42,272 WARN L322 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:42,272 WARN L322 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:42,272 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:42,272 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:42,272 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:42,272 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:42,272 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:42,272 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:42,272 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:42,273 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:42,273 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:42,273 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:42,273 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:42,273 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:42,273 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:42,273 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:42,273 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:42,273 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:42,273 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:42,273 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:42,273 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-01-19 05:01:42,274 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-19 05:01:42,275 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-01-19 05:01:42,275 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-01-19 05:01:42,275 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 120 places, 110 transitions, 262 flow [2022-01-19 05:01:42,282 INFO L129 PetriNetUnfolder]: 5/133 cut-off events. [2022-01-19 05:01:42,282 INFO L130 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2022-01-19 05:01:42,282 INFO L84 FinitePrefix]: Finished finitePrefix Result has 154 conditions, 133 events. 5/133 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 193 event pairs, 0 based on Foata normal form. 0/123 useless extension candidates. Maximal degree in co-relation 147. Up to 8 conditions per place. [2022-01-19 05:01:42,283 INFO L82 GeneralOperation]: Start removeDead. Operand has 120 places, 110 transitions, 262 flow [2022-01-19 05:01:42,283 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 89 places, 81 transitions, 186 flow [2022-01-19 05:01:42,285 INFO L129 PetriNetUnfolder]: 2/45 cut-off events. [2022-01-19 05:01:42,285 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-01-19 05:01:42,285 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 05:01:42,285 INFO L254 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] [2022-01-19 05:01:42,285 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-19 05:01:42,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 05:01:42,286 INFO L85 PathProgramCache]: Analyzing trace with hash 980719107, now seen corresponding path program 1 times [2022-01-19 05:01:42,286 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 05:01:42,286 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [568627630] [2022-01-19 05:01:42,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 05:01:42,286 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 05:01:42,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 05:01:42,315 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 05:01:42,315 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 05:01:42,315 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [568627630] [2022-01-19 05:01:42,315 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [568627630] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 05:01:42,315 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 05:01:42,315 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-19 05:01:42,315 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2125922035] [2022-01-19 05:01:42,315 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 05:01:42,316 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-19 05:01:42,316 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 05:01:42,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-19 05:01:42,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-19 05:01:42,316 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 110 [2022-01-19 05:01:42,317 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 89 places, 81 transitions, 186 flow. Second operand has 5 states, 5 states have (on average 83.4) internal successors, (417), 5 states have internal predecessors, (417), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:01:42,317 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 05:01:42,317 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 110 [2022-01-19 05:01:42,317 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 05:01:42,494 INFO L129 PetriNetUnfolder]: 541/1578 cut-off events. [2022-01-19 05:01:42,494 INFO L130 PetriNetUnfolder]: For 504/504 co-relation queries the response was YES. [2022-01-19 05:01:42,500 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2822 conditions, 1578 events. 541/1578 cut-off events. For 504/504 co-relation queries the response was YES. Maximal size of possible extension queue 110. Compared 11852 event pairs, 184 based on Foata normal form. 274/1742 useless extension candidates. Maximal degree in co-relation 2787. Up to 318 conditions per place. [2022-01-19 05:01:42,505 INFO L132 encePairwiseOnDemand]: 100/110 looper letters, 20 selfloop transitions, 4 changer transitions 53/135 dead transitions. [2022-01-19 05:01:42,505 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 135 transitions, 520 flow [2022-01-19 05:01:42,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-19 05:01:42,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-01-19 05:01:42,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 740 transitions. [2022-01-19 05:01:42,507 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8409090909090909 [2022-01-19 05:01:42,507 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 740 transitions. [2022-01-19 05:01:42,507 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 740 transitions. [2022-01-19 05:01:42,508 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 05:01:42,508 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 740 transitions. [2022-01-19 05:01:42,509 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 92.5) internal successors, (740), 8 states have internal predecessors, (740), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:01:42,510 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 110.0) internal successors, (990), 9 states have internal predecessors, (990), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:01:42,510 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 110.0) internal successors, (990), 9 states have internal predecessors, (990), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:01:42,510 INFO L186 Difference]: Start difference. First operand has 89 places, 81 transitions, 186 flow. Second operand 8 states and 740 transitions. [2022-01-19 05:01:42,510 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 135 transitions, 520 flow [2022-01-19 05:01:42,511 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 135 transitions, 501 flow, removed 9 selfloop flow, removed 1 redundant places. [2022-01-19 05:01:42,513 INFO L242 Difference]: Finished difference. Result has 99 places, 77 transitions, 211 flow [2022-01-19 05:01:42,513 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=110, PETRI_DIFFERENCE_MINUEND_FLOW=173, PETRI_DIFFERENCE_MINUEND_PLACES=87, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=78, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=74, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=211, PETRI_PLACES=99, PETRI_TRANSITIONS=77} [2022-01-19 05:01:42,513 INFO L334 CegarLoopForPetriNet]: 89 programPoint places, 10 predicate places. [2022-01-19 05:01:42,513 INFO L470 AbstractCegarLoop]: Abstraction has has 99 places, 77 transitions, 211 flow [2022-01-19 05:01:42,513 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 83.4) internal successors, (417), 5 states have internal predecessors, (417), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:01:42,513 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 05:01:42,513 INFO L254 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] [2022-01-19 05:01:42,514 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-19 05:01:42,514 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-19 05:01:42,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 05:01:42,514 INFO L85 PathProgramCache]: Analyzing trace with hash 941136163, now seen corresponding path program 1 times [2022-01-19 05:01:42,514 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 05:01:42,514 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [444114071] [2022-01-19 05:01:42,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 05:01:42,514 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 05:01:42,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 05:01:42,554 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 05:01:42,554 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 05:01:42,554 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [444114071] [2022-01-19 05:01:42,554 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [444114071] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 05:01:42,554 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 05:01:42,554 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-19 05:01:42,554 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [226368831] [2022-01-19 05:01:42,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 05:01:42,554 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-19 05:01:42,555 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 05:01:42,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-19 05:01:42,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-01-19 05:01:42,556 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 110 [2022-01-19 05:01:42,556 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 77 transitions, 211 flow. Second operand has 7 states, 7 states have (on average 82.57142857142857) internal successors, (578), 7 states have internal predecessors, (578), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:01:42,556 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 05:01:42,556 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 110 [2022-01-19 05:01:42,556 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 05:01:42,743 INFO L129 PetriNetUnfolder]: 356/1197 cut-off events. [2022-01-19 05:01:42,743 INFO L130 PetriNetUnfolder]: For 867/867 co-relation queries the response was YES. [2022-01-19 05:01:42,749 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2847 conditions, 1197 events. 356/1197 cut-off events. For 867/867 co-relation queries the response was YES. Maximal size of possible extension queue 106. Compared 9118 event pairs, 140 based on Foata normal form. 19/1168 useless extension candidates. Maximal degree in co-relation 2806. Up to 297 conditions per place. [2022-01-19 05:01:42,756 INFO L132 encePairwiseOnDemand]: 102/110 looper letters, 40 selfloop transitions, 10 changer transitions 27/134 dead transitions. [2022-01-19 05:01:42,756 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 134 transitions, 651 flow [2022-01-19 05:01:42,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-19 05:01:42,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-01-19 05:01:42,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 889 transitions. [2022-01-19 05:01:42,758 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8081818181818182 [2022-01-19 05:01:42,758 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 889 transitions. [2022-01-19 05:01:42,758 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 889 transitions. [2022-01-19 05:01:42,758 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 05:01:42,758 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 889 transitions. [2022-01-19 05:01:42,760 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 88.9) internal successors, (889), 10 states have internal predecessors, (889), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:01:42,761 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 110.0) internal successors, (1210), 11 states have internal predecessors, (1210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:01:42,762 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 110.0) internal successors, (1210), 11 states have internal predecessors, (1210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:01:42,762 INFO L186 Difference]: Start difference. First operand has 99 places, 77 transitions, 211 flow. Second operand 10 states and 889 transitions. [2022-01-19 05:01:42,762 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 134 transitions, 651 flow [2022-01-19 05:01:42,765 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 96 places, 134 transitions, 629 flow, removed 8 selfloop flow, removed 3 redundant places. [2022-01-19 05:01:42,767 INFO L242 Difference]: Finished difference. Result has 103 places, 83 transitions, 296 flow [2022-01-19 05:01:42,767 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=110, PETRI_DIFFERENCE_MINUEND_FLOW=203, PETRI_DIFFERENCE_MINUEND_PLACES=87, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=77, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=69, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=296, PETRI_PLACES=103, PETRI_TRANSITIONS=83} [2022-01-19 05:01:42,767 INFO L334 CegarLoopForPetriNet]: 89 programPoint places, 14 predicate places. [2022-01-19 05:01:42,767 INFO L470 AbstractCegarLoop]: Abstraction has has 103 places, 83 transitions, 296 flow [2022-01-19 05:01:42,768 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 82.57142857142857) internal successors, (578), 7 states have internal predecessors, (578), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:01:42,768 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 05:01:42,768 INFO L254 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 05:01:42,768 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-01-19 05:01:42,768 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-19 05:01:42,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 05:01:42,768 INFO L85 PathProgramCache]: Analyzing trace with hash 743978515, now seen corresponding path program 1 times [2022-01-19 05:01:42,768 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 05:01:42,768 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [382957798] [2022-01-19 05:01:42,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 05:01:42,769 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 05:01:42,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 05:01:42,808 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-01-19 05:01:42,809 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 05:01:42,809 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [382957798] [2022-01-19 05:01:42,809 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [382957798] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 05:01:42,809 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 05:01:42,809 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-19 05:01:42,809 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1630029985] [2022-01-19 05:01:42,809 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 05:01:42,809 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-19 05:01:42,809 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 05:01:42,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-19 05:01:42,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-01-19 05:01:42,810 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 110 [2022-01-19 05:01:42,811 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 103 places, 83 transitions, 296 flow. Second operand has 7 states, 7 states have (on average 82.71428571428571) internal successors, (579), 7 states have internal predecessors, (579), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:01:42,811 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 05:01:42,811 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 110 [2022-01-19 05:01:42,811 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 05:01:43,061 INFO L129 PetriNetUnfolder]: 344/1304 cut-off events. [2022-01-19 05:01:43,061 INFO L130 PetriNetUnfolder]: For 2576/2576 co-relation queries the response was YES. [2022-01-19 05:01:43,066 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3857 conditions, 1304 events. 344/1304 cut-off events. For 2576/2576 co-relation queries the response was YES. Maximal size of possible extension queue 131. Compared 10847 event pairs, 124 based on Foata normal form. 29/1308 useless extension candidates. Maximal degree in co-relation 3810. Up to 300 conditions per place. [2022-01-19 05:01:43,072 INFO L132 encePairwiseOnDemand]: 102/110 looper letters, 44 selfloop transitions, 15 changer transitions 31/147 dead transitions. [2022-01-19 05:01:43,072 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 108 places, 147 transitions, 955 flow [2022-01-19 05:01:43,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-19 05:01:43,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-01-19 05:01:43,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 886 transitions. [2022-01-19 05:01:43,074 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8054545454545454 [2022-01-19 05:01:43,074 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 886 transitions. [2022-01-19 05:01:43,074 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 886 transitions. [2022-01-19 05:01:43,075 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 05:01:43,075 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 886 transitions. [2022-01-19 05:01:43,076 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 88.6) internal successors, (886), 10 states have internal predecessors, (886), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:01:43,078 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 110.0) internal successors, (1210), 11 states have internal predecessors, (1210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:01:43,078 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 110.0) internal successors, (1210), 11 states have internal predecessors, (1210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:01:43,078 INFO L186 Difference]: Start difference. First operand has 103 places, 83 transitions, 296 flow. Second operand 10 states and 886 transitions. [2022-01-19 05:01:43,078 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 108 places, 147 transitions, 955 flow [2022-01-19 05:01:43,086 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 102 places, 147 transitions, 862 flow, removed 40 selfloop flow, removed 6 redundant places. [2022-01-19 05:01:43,088 INFO L242 Difference]: Finished difference. Result has 109 places, 92 transitions, 422 flow [2022-01-19 05:01:43,088 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=110, PETRI_DIFFERENCE_MINUEND_FLOW=267, PETRI_DIFFERENCE_MINUEND_PLACES=93, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=83, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=422, PETRI_PLACES=109, PETRI_TRANSITIONS=92} [2022-01-19 05:01:43,088 INFO L334 CegarLoopForPetriNet]: 89 programPoint places, 20 predicate places. [2022-01-19 05:01:43,089 INFO L470 AbstractCegarLoop]: Abstraction has has 109 places, 92 transitions, 422 flow [2022-01-19 05:01:43,089 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 82.71428571428571) internal successors, (579), 7 states have internal predecessors, (579), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:01:43,089 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 05:01:43,089 INFO L254 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 05:01:43,089 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-01-19 05:01:43,089 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-19 05:01:43,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 05:01:43,089 INFO L85 PathProgramCache]: Analyzing trace with hash 1600819537, now seen corresponding path program 1 times [2022-01-19 05:01:43,090 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 05:01:43,090 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1290033352] [2022-01-19 05:01:43,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 05:01:43,090 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 05:01:43,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 05:01:43,137 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-01-19 05:01:43,137 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 05:01:43,137 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1290033352] [2022-01-19 05:01:43,137 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1290033352] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 05:01:43,137 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 05:01:43,137 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-01-19 05:01:43,137 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2126225047] [2022-01-19 05:01:43,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 05:01:43,138 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-19 05:01:43,138 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 05:01:43,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-19 05:01:43,138 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2022-01-19 05:01:43,139 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 110 [2022-01-19 05:01:43,139 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 109 places, 92 transitions, 422 flow. Second operand has 9 states, 9 states have (on average 81.66666666666667) internal successors, (735), 9 states have internal predecessors, (735), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:01:43,139 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 05:01:43,139 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 110 [2022-01-19 05:01:43,140 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 05:01:43,396 INFO L129 PetriNetUnfolder]: 326/1240 cut-off events. [2022-01-19 05:01:43,396 INFO L130 PetriNetUnfolder]: For 3228/3228 co-relation queries the response was YES. [2022-01-19 05:01:43,403 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3877 conditions, 1240 events. 326/1240 cut-off events. For 3228/3228 co-relation queries the response was YES. Maximal size of possible extension queue 107. Compared 9883 event pairs, 108 based on Foata normal form. 5/1218 useless extension candidates. Maximal degree in co-relation 3827. Up to 242 conditions per place. [2022-01-19 05:01:43,410 INFO L132 encePairwiseOnDemand]: 101/110 looper letters, 72 selfloop transitions, 29 changer transitions 11/168 dead transitions. [2022-01-19 05:01:43,410 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 121 places, 168 transitions, 1126 flow [2022-01-19 05:01:43,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-19 05:01:43,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2022-01-19 05:01:43,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 1471 transitions. [2022-01-19 05:01:43,412 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7866310160427807 [2022-01-19 05:01:43,413 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 1471 transitions. [2022-01-19 05:01:43,413 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 1471 transitions. [2022-01-19 05:01:43,413 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 05:01:43,413 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 1471 transitions. [2022-01-19 05:01:43,416 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 86.52941176470588) internal successors, (1471), 17 states have internal predecessors, (1471), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:01:43,418 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 110.0) internal successors, (1980), 18 states have internal predecessors, (1980), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:01:43,418 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 110.0) internal successors, (1980), 18 states have internal predecessors, (1980), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:01:43,418 INFO L186 Difference]: Start difference. First operand has 109 places, 92 transitions, 422 flow. Second operand 17 states and 1471 transitions. [2022-01-19 05:01:43,419 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 121 places, 168 transitions, 1126 flow [2022-01-19 05:01:43,427 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 116 places, 168 transitions, 1006 flow, removed 58 selfloop flow, removed 5 redundant places. [2022-01-19 05:01:43,429 INFO L242 Difference]: Finished difference. Result has 123 places, 102 transitions, 586 flow [2022-01-19 05:01:43,429 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=110, PETRI_DIFFERENCE_MINUEND_FLOW=390, PETRI_DIFFERENCE_MINUEND_PLACES=100, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=92, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=70, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=586, PETRI_PLACES=123, PETRI_TRANSITIONS=102} [2022-01-19 05:01:43,430 INFO L334 CegarLoopForPetriNet]: 89 programPoint places, 34 predicate places. [2022-01-19 05:01:43,430 INFO L470 AbstractCegarLoop]: Abstraction has has 123 places, 102 transitions, 586 flow [2022-01-19 05:01:43,430 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 81.66666666666667) internal successors, (735), 9 states have internal predecessors, (735), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:01:43,430 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 05:01:43,430 INFO L254 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 05:01:43,430 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-01-19 05:01:43,430 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-19 05:01:43,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 05:01:43,431 INFO L85 PathProgramCache]: Analyzing trace with hash 370524177, now seen corresponding path program 2 times [2022-01-19 05:01:43,431 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 05:01:43,431 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1426671281] [2022-01-19 05:01:43,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 05:01:43,431 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 05:01:43,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 05:01:43,474 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-01-19 05:01:43,474 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 05:01:43,474 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1426671281] [2022-01-19 05:01:43,474 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1426671281] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 05:01:43,474 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 05:01:43,475 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-01-19 05:01:43,475 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1584540984] [2022-01-19 05:01:43,475 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 05:01:43,475 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-19 05:01:43,475 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 05:01:43,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-19 05:01:43,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2022-01-19 05:01:43,476 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 110 [2022-01-19 05:01:43,477 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 123 places, 102 transitions, 586 flow. Second operand has 9 states, 9 states have (on average 81.66666666666667) internal successors, (735), 9 states have internal predecessors, (735), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:01:43,477 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 05:01:43,477 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 110 [2022-01-19 05:01:43,477 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 05:01:43,750 INFO L129 PetriNetUnfolder]: 318/1350 cut-off events. [2022-01-19 05:01:43,751 INFO L130 PetriNetUnfolder]: For 3932/3932 co-relation queries the response was YES. [2022-01-19 05:01:43,758 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4179 conditions, 1350 events. 318/1350 cut-off events. For 3932/3932 co-relation queries the response was YES. Maximal size of possible extension queue 119. Compared 11271 event pairs, 119 based on Foata normal form. 5/1324 useless extension candidates. Maximal degree in co-relation 4125. Up to 249 conditions per place. [2022-01-19 05:01:43,766 INFO L132 encePairwiseOnDemand]: 101/110 looper letters, 73 selfloop transitions, 32 changer transitions 11/172 dead transitions. [2022-01-19 05:01:43,766 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 135 places, 172 transitions, 1251 flow [2022-01-19 05:01:43,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-19 05:01:43,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2022-01-19 05:01:43,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 1471 transitions. [2022-01-19 05:01:43,769 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7866310160427807 [2022-01-19 05:01:43,769 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 1471 transitions. [2022-01-19 05:01:43,769 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 1471 transitions. [2022-01-19 05:01:43,769 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 05:01:43,769 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 1471 transitions. [2022-01-19 05:01:43,771 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 86.52941176470588) internal successors, (1471), 17 states have internal predecessors, (1471), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:01:43,773 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 110.0) internal successors, (1980), 18 states have internal predecessors, (1980), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:01:43,774 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 110.0) internal successors, (1980), 18 states have internal predecessors, (1980), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:01:43,774 INFO L186 Difference]: Start difference. First operand has 123 places, 102 transitions, 586 flow. Second operand 17 states and 1471 transitions. [2022-01-19 05:01:43,774 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 135 places, 172 transitions, 1251 flow [2022-01-19 05:01:43,785 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 124 places, 172 transitions, 1104 flow, removed 48 selfloop flow, removed 11 redundant places. [2022-01-19 05:01:43,787 INFO L242 Difference]: Finished difference. Result has 131 places, 107 transitions, 665 flow [2022-01-19 05:01:43,787 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=110, PETRI_DIFFERENCE_MINUEND_FLOW=515, PETRI_DIFFERENCE_MINUEND_PLACES=108, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=102, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=27, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=73, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=665, PETRI_PLACES=131, PETRI_TRANSITIONS=107} [2022-01-19 05:01:43,787 INFO L334 CegarLoopForPetriNet]: 89 programPoint places, 42 predicate places. [2022-01-19 05:01:43,787 INFO L470 AbstractCegarLoop]: Abstraction has has 131 places, 107 transitions, 665 flow [2022-01-19 05:01:43,788 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 81.66666666666667) internal successors, (735), 9 states have internal predecessors, (735), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:01:43,788 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 05:01:43,788 INFO L254 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 05:01:43,788 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-01-19 05:01:43,788 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-19 05:01:43,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 05:01:43,788 INFO L85 PathProgramCache]: Analyzing trace with hash 1163593442, now seen corresponding path program 1 times [2022-01-19 05:01:43,788 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 05:01:43,788 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [3451351] [2022-01-19 05:01:43,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 05:01:43,789 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 05:01:43,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 05:01:43,825 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-01-19 05:01:43,826 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 05:01:43,826 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [3451351] [2022-01-19 05:01:43,826 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [3451351] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 05:01:43,826 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 05:01:43,826 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-19 05:01:43,826 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1722356035] [2022-01-19 05:01:43,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 05:01:43,826 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-19 05:01:43,826 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 05:01:43,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-19 05:01:43,827 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-01-19 05:01:43,827 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 110 [2022-01-19 05:01:43,828 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 131 places, 107 transitions, 665 flow. Second operand has 7 states, 7 states have (on average 82.85714285714286) internal successors, (580), 7 states have internal predecessors, (580), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:01:43,828 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 05:01:43,828 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 110 [2022-01-19 05:01:43,828 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 05:01:44,023 INFO L129 PetriNetUnfolder]: 200/1026 cut-off events. [2022-01-19 05:01:44,023 INFO L130 PetriNetUnfolder]: For 4536/4536 co-relation queries the response was YES. [2022-01-19 05:01:44,029 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3881 conditions, 1026 events. 200/1026 cut-off events. For 4536/4536 co-relation queries the response was YES. Maximal size of possible extension queue 118. Compared 8772 event pairs, 52 based on Foata normal form. 43/1052 useless extension candidates. Maximal degree in co-relation 3825. Up to 270 conditions per place. [2022-01-19 05:01:44,033 INFO L132 encePairwiseOnDemand]: 102/110 looper letters, 56 selfloop transitions, 17 changer transitions 74/204 dead transitions. [2022-01-19 05:01:44,034 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 136 places, 204 transitions, 2154 flow [2022-01-19 05:01:44,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-19 05:01:44,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-01-19 05:01:44,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 876 transitions. [2022-01-19 05:01:44,035 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7963636363636364 [2022-01-19 05:01:44,035 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 876 transitions. [2022-01-19 05:01:44,035 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 876 transitions. [2022-01-19 05:01:44,035 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 05:01:44,035 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 876 transitions. [2022-01-19 05:01:44,037 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 87.6) internal successors, (876), 10 states have internal predecessors, (876), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:01:44,038 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 110.0) internal successors, (1210), 11 states have internal predecessors, (1210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:01:44,038 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 110.0) internal successors, (1210), 11 states have internal predecessors, (1210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:01:44,038 INFO L186 Difference]: Start difference. First operand has 131 places, 107 transitions, 665 flow. Second operand 10 states and 876 transitions. [2022-01-19 05:01:44,038 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 136 places, 204 transitions, 2154 flow [2022-01-19 05:01:44,052 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 123 places, 204 transitions, 1965 flow, removed 26 selfloop flow, removed 13 redundant places. [2022-01-19 05:01:44,054 INFO L242 Difference]: Finished difference. Result has 130 places, 115 transitions, 820 flow [2022-01-19 05:01:44,054 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=110, PETRI_DIFFERENCE_MINUEND_FLOW=593, PETRI_DIFFERENCE_MINUEND_PLACES=114, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=107, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=92, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=820, PETRI_PLACES=130, PETRI_TRANSITIONS=115} [2022-01-19 05:01:44,054 INFO L334 CegarLoopForPetriNet]: 89 programPoint places, 41 predicate places. [2022-01-19 05:01:44,054 INFO L470 AbstractCegarLoop]: Abstraction has has 130 places, 115 transitions, 820 flow [2022-01-19 05:01:44,055 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 82.85714285714286) internal successors, (580), 7 states have internal predecessors, (580), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:01:44,055 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 05:01:44,055 INFO L254 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 05:01:44,055 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-01-19 05:01:44,055 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-19 05:01:44,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 05:01:44,055 INFO L85 PathProgramCache]: Analyzing trace with hash -286036960, now seen corresponding path program 1 times [2022-01-19 05:01:44,055 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 05:01:44,055 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1506856100] [2022-01-19 05:01:44,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 05:01:44,056 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 05:01:44,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 05:01:44,104 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-01-19 05:01:44,104 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 05:01:44,104 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1506856100] [2022-01-19 05:01:44,104 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1506856100] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 05:01:44,104 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 05:01:44,105 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-01-19 05:01:44,105 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1995792844] [2022-01-19 05:01:44,105 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 05:01:44,105 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-19 05:01:44,105 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 05:01:44,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-19 05:01:44,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2022-01-19 05:01:44,106 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 110 [2022-01-19 05:01:44,106 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 130 places, 115 transitions, 820 flow. Second operand has 9 states, 9 states have (on average 81.77777777777777) internal successors, (736), 9 states have internal predecessors, (736), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:01:44,107 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 05:01:44,107 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 110 [2022-01-19 05:01:44,107 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 05:01:44,336 INFO L129 PetriNetUnfolder]: 124/859 cut-off events. [2022-01-19 05:01:44,336 INFO L130 PetriNetUnfolder]: For 3311/3311 co-relation queries the response was YES. [2022-01-19 05:01:44,340 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2758 conditions, 859 events. 124/859 cut-off events. For 3311/3311 co-relation queries the response was YES. Maximal size of possible extension queue 76. Compared 6743 event pairs, 39 based on Foata normal form. 9/843 useless extension candidates. Maximal degree in co-relation 2699. Up to 134 conditions per place. [2022-01-19 05:01:44,346 INFO L132 encePairwiseOnDemand]: 101/110 looper letters, 68 selfloop transitions, 32 changer transitions 26/182 dead transitions. [2022-01-19 05:01:44,346 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 142 places, 182 transitions, 1655 flow [2022-01-19 05:01:44,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-19 05:01:44,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2022-01-19 05:01:44,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 1458 transitions. [2022-01-19 05:01:44,348 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7796791443850267 [2022-01-19 05:01:44,348 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 1458 transitions. [2022-01-19 05:01:44,348 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 1458 transitions. [2022-01-19 05:01:44,348 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 05:01:44,349 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 1458 transitions. [2022-01-19 05:01:44,350 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 85.76470588235294) internal successors, (1458), 17 states have internal predecessors, (1458), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:01:44,352 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 110.0) internal successors, (1980), 18 states have internal predecessors, (1980), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:01:44,353 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 110.0) internal successors, (1980), 18 states have internal predecessors, (1980), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:01:44,353 INFO L186 Difference]: Start difference. First operand has 130 places, 115 transitions, 820 flow. Second operand 17 states and 1458 transitions. [2022-01-19 05:01:44,353 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 142 places, 182 transitions, 1655 flow [2022-01-19 05:01:44,365 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 137 places, 182 transitions, 1468 flow, removed 91 selfloop flow, removed 5 redundant places. [2022-01-19 05:01:44,367 INFO L242 Difference]: Finished difference. Result has 144 places, 117 transitions, 818 flow [2022-01-19 05:01:44,368 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=110, PETRI_DIFFERENCE_MINUEND_FLOW=729, PETRI_DIFFERENCE_MINUEND_PLACES=121, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=115, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=27, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=86, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=818, PETRI_PLACES=144, PETRI_TRANSITIONS=117} [2022-01-19 05:01:44,368 INFO L334 CegarLoopForPetriNet]: 89 programPoint places, 55 predicate places. [2022-01-19 05:01:44,369 INFO L470 AbstractCegarLoop]: Abstraction has has 144 places, 117 transitions, 818 flow [2022-01-19 05:01:44,369 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 81.77777777777777) internal successors, (736), 9 states have internal predecessors, (736), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:01:44,369 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 05:01:44,369 INFO L254 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 05:01:44,369 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-01-19 05:01:44,369 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-19 05:01:44,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 05:01:44,370 INFO L85 PathProgramCache]: Analyzing trace with hash -1957049312, now seen corresponding path program 2 times [2022-01-19 05:01:44,370 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 05:01:44,370 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1404203326] [2022-01-19 05:01:44,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 05:01:44,370 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 05:01:44,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 05:01:44,428 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-01-19 05:01:44,428 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 05:01:44,428 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1404203326] [2022-01-19 05:01:44,428 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1404203326] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 05:01:44,428 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 05:01:44,429 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-01-19 05:01:44,429 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [772691126] [2022-01-19 05:01:44,429 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 05:01:44,429 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-19 05:01:44,429 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 05:01:44,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-19 05:01:44,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2022-01-19 05:01:44,430 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 110 [2022-01-19 05:01:44,430 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 144 places, 117 transitions, 818 flow. Second operand has 9 states, 9 states have (on average 81.77777777777777) internal successors, (736), 9 states have internal predecessors, (736), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:01:44,430 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 05:01:44,430 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 110 [2022-01-19 05:01:44,431 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 05:01:44,618 INFO L129 PetriNetUnfolder]: 110/665 cut-off events. [2022-01-19 05:01:44,618 INFO L130 PetriNetUnfolder]: For 2611/2611 co-relation queries the response was YES. [2022-01-19 05:01:44,622 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2317 conditions, 665 events. 110/665 cut-off events. For 2611/2611 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 4757 event pairs, 32 based on Foata normal form. 7/654 useless extension candidates. Maximal degree in co-relation 2254. Up to 99 conditions per place. [2022-01-19 05:01:44,624 INFO L132 encePairwiseOnDemand]: 101/110 looper letters, 66 selfloop transitions, 30 changer transitions 23/175 dead transitions. [2022-01-19 05:01:44,624 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 156 places, 175 transitions, 1502 flow [2022-01-19 05:01:44,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-19 05:01:44,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2022-01-19 05:01:44,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 1456 transitions. [2022-01-19 05:01:44,626 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7786096256684492 [2022-01-19 05:01:44,626 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 1456 transitions. [2022-01-19 05:01:44,626 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 1456 transitions. [2022-01-19 05:01:44,626 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 05:01:44,626 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 1456 transitions. [2022-01-19 05:01:44,628 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 85.6470588235294) internal successors, (1456), 17 states have internal predecessors, (1456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:01:44,630 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 110.0) internal successors, (1980), 18 states have internal predecessors, (1980), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:01:44,630 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 110.0) internal successors, (1980), 18 states have internal predecessors, (1980), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:01:44,630 INFO L186 Difference]: Start difference. First operand has 144 places, 117 transitions, 818 flow. Second operand 17 states and 1456 transitions. [2022-01-19 05:01:44,630 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 156 places, 175 transitions, 1502 flow [2022-01-19 05:01:44,641 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 145 places, 175 transitions, 1320 flow, removed 73 selfloop flow, removed 11 redundant places. [2022-01-19 05:01:44,643 INFO L242 Difference]: Finished difference. Result has 152 places, 114 transitions, 749 flow [2022-01-19 05:01:44,643 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=110, PETRI_DIFFERENCE_MINUEND_FLOW=706, PETRI_DIFFERENCE_MINUEND_PLACES=129, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=117, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=27, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=88, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=749, PETRI_PLACES=152, PETRI_TRANSITIONS=114} [2022-01-19 05:01:44,643 INFO L334 CegarLoopForPetriNet]: 89 programPoint places, 63 predicate places. [2022-01-19 05:01:44,643 INFO L470 AbstractCegarLoop]: Abstraction has has 152 places, 114 transitions, 749 flow [2022-01-19 05:01:44,644 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 81.77777777777777) internal successors, (736), 9 states have internal predecessors, (736), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:01:44,644 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 05:01:44,644 INFO L254 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 05:01:44,644 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-01-19 05:01:44,644 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-19 05:01:44,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 05:01:44,644 INFO L85 PathProgramCache]: Analyzing trace with hash 1171118688, now seen corresponding path program 1 times [2022-01-19 05:01:44,644 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 05:01:44,644 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [862738313] [2022-01-19 05:01:44,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 05:01:44,645 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 05:01:44,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 05:01:44,712 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-01-19 05:01:44,713 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 05:01:44,713 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [862738313] [2022-01-19 05:01:44,713 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [862738313] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 05:01:44,713 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 05:01:44,713 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-01-19 05:01:44,713 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [876753228] [2022-01-19 05:01:44,713 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 05:01:44,713 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-19 05:01:44,714 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 05:01:44,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-19 05:01:44,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2022-01-19 05:01:44,714 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 110 [2022-01-19 05:01:44,715 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 152 places, 114 transitions, 749 flow. Second operand has 9 states, 9 states have (on average 81.77777777777777) internal successors, (736), 9 states have internal predecessors, (736), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:01:44,715 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 05:01:44,715 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 110 [2022-01-19 05:01:44,715 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 05:01:44,914 INFO L129 PetriNetUnfolder]: 87/626 cut-off events. [2022-01-19 05:01:44,914 INFO L130 PetriNetUnfolder]: For 2293/2293 co-relation queries the response was YES. [2022-01-19 05:01:44,918 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2030 conditions, 626 events. 87/626 cut-off events. For 2293/2293 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 4395 event pairs, 34 based on Foata normal form. 9/614 useless extension candidates. Maximal degree in co-relation 1966. Up to 74 conditions per place. [2022-01-19 05:01:44,920 INFO L132 encePairwiseOnDemand]: 101/110 looper letters, 59 selfloop transitions, 19 changer transitions 34/168 dead transitions. [2022-01-19 05:01:44,921 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 164 places, 168 transitions, 1431 flow [2022-01-19 05:01:44,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-19 05:01:44,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2022-01-19 05:01:44,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 1445 transitions. [2022-01-19 05:01:44,924 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7727272727272727 [2022-01-19 05:01:44,924 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 1445 transitions. [2022-01-19 05:01:44,924 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 1445 transitions. [2022-01-19 05:01:44,924 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 05:01:44,925 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 1445 transitions. [2022-01-19 05:01:44,935 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 85.0) internal successors, (1445), 17 states have internal predecessors, (1445), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:01:44,938 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 110.0) internal successors, (1980), 18 states have internal predecessors, (1980), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:01:44,938 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 110.0) internal successors, (1980), 18 states have internal predecessors, (1980), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:01:44,939 INFO L186 Difference]: Start difference. First operand has 152 places, 114 transitions, 749 flow. Second operand 17 states and 1445 transitions. [2022-01-19 05:01:44,939 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 164 places, 168 transitions, 1431 flow [2022-01-19 05:01:44,949 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 150 places, 168 transitions, 1278 flow, removed 44 selfloop flow, removed 14 redundant places. [2022-01-19 05:01:44,951 INFO L242 Difference]: Finished difference. Result has 157 places, 105 transitions, 595 flow [2022-01-19 05:01:44,951 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=110, PETRI_DIFFERENCE_MINUEND_FLOW=641, PETRI_DIFFERENCE_MINUEND_PLACES=134, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=114, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=95, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=595, PETRI_PLACES=157, PETRI_TRANSITIONS=105} [2022-01-19 05:01:44,952 INFO L334 CegarLoopForPetriNet]: 89 programPoint places, 68 predicate places. [2022-01-19 05:01:44,952 INFO L470 AbstractCegarLoop]: Abstraction has has 157 places, 105 transitions, 595 flow [2022-01-19 05:01:44,952 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 81.77777777777777) internal successors, (736), 9 states have internal predecessors, (736), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:01:44,952 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 05:01:44,952 INFO L254 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 05:01:44,952 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-01-19 05:01:44,952 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-19 05:01:44,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 05:01:44,953 INFO L85 PathProgramCache]: Analyzing trace with hash 964131488, now seen corresponding path program 2 times [2022-01-19 05:01:44,953 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 05:01:44,953 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1168298846] [2022-01-19 05:01:44,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 05:01:44,953 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 05:01:44,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 05:01:45,006 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-01-19 05:01:45,006 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 05:01:45,006 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1168298846] [2022-01-19 05:01:45,006 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1168298846] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 05:01:45,006 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 05:01:45,006 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-01-19 05:01:45,006 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1722065589] [2022-01-19 05:01:45,006 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 05:01:45,007 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-19 05:01:45,007 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 05:01:45,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-19 05:01:45,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2022-01-19 05:01:45,008 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 110 [2022-01-19 05:01:45,009 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 157 places, 105 transitions, 595 flow. Second operand has 9 states, 9 states have (on average 81.77777777777777) internal successors, (736), 9 states have internal predecessors, (736), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:01:45,009 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 05:01:45,009 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 110 [2022-01-19 05:01:45,009 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 05:01:45,181 INFO L129 PetriNetUnfolder]: 56/436 cut-off events. [2022-01-19 05:01:45,181 INFO L130 PetriNetUnfolder]: For 1363/1363 co-relation queries the response was YES. [2022-01-19 05:01:45,183 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1376 conditions, 436 events. 56/436 cut-off events. For 1363/1363 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 2577 event pairs, 12 based on Foata normal form. 9/432 useless extension candidates. Maximal degree in co-relation 1311. Up to 46 conditions per place. [2022-01-19 05:01:45,184 INFO L132 encePairwiseOnDemand]: 101/110 looper letters, 55 selfloop transitions, 12 changer transitions 29/152 dead transitions. [2022-01-19 05:01:45,184 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 166 places, 152 transitions, 1210 flow [2022-01-19 05:01:45,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-01-19 05:01:45,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2022-01-19 05:01:45,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1360 transitions. [2022-01-19 05:01:45,186 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7727272727272727 [2022-01-19 05:01:45,186 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 1360 transitions. [2022-01-19 05:01:45,186 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 1360 transitions. [2022-01-19 05:01:45,186 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 05:01:45,186 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 1360 transitions. [2022-01-19 05:01:45,188 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 85.0) internal successors, (1360), 16 states have internal predecessors, (1360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:01:45,190 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 110.0) internal successors, (1870), 17 states have internal predecessors, (1870), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:01:45,190 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 110.0) internal successors, (1870), 17 states have internal predecessors, (1870), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:01:45,190 INFO L186 Difference]: Start difference. First operand has 157 places, 105 transitions, 595 flow. Second operand 16 states and 1360 transitions. [2022-01-19 05:01:45,190 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 166 places, 152 transitions, 1210 flow [2022-01-19 05:01:45,195 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 152 places, 152 transitions, 1059 flow, removed 51 selfloop flow, removed 14 redundant places. [2022-01-19 05:01:45,197 INFO L242 Difference]: Finished difference. Result has 159 places, 95 transitions, 433 flow [2022-01-19 05:01:45,197 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=110, PETRI_DIFFERENCE_MINUEND_FLOW=507, PETRI_DIFFERENCE_MINUEND_PLACES=137, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=105, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=93, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=433, PETRI_PLACES=159, PETRI_TRANSITIONS=95} [2022-01-19 05:01:45,197 INFO L334 CegarLoopForPetriNet]: 89 programPoint places, 70 predicate places. [2022-01-19 05:01:45,197 INFO L470 AbstractCegarLoop]: Abstraction has has 159 places, 95 transitions, 433 flow [2022-01-19 05:01:45,198 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 81.77777777777777) internal successors, (736), 9 states have internal predecessors, (736), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:01:45,198 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 05:01:45,198 INFO L254 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 05:01:45,198 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-01-19 05:01:45,198 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-19 05:01:45,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 05:01:45,198 INFO L85 PathProgramCache]: Analyzing trace with hash -1467486976, now seen corresponding path program 1 times [2022-01-19 05:01:45,198 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 05:01:45,198 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1712332653] [2022-01-19 05:01:45,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 05:01:45,199 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 05:01:45,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 05:01:45,255 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-01-19 05:01:45,255 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 05:01:45,255 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1712332653] [2022-01-19 05:01:45,255 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1712332653] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 05:01:45,256 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 05:01:45,256 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-19 05:01:45,256 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1468168403] [2022-01-19 05:01:45,256 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 05:01:45,256 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-19 05:01:45,256 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 05:01:45,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-19 05:01:45,256 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2022-01-19 05:01:45,257 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 110 [2022-01-19 05:01:45,257 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 159 places, 95 transitions, 433 flow. Second operand has 11 states, 11 states have (on average 80.72727272727273) internal successors, (888), 11 states have internal predecessors, (888), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:01:45,257 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 05:01:45,258 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 110 [2022-01-19 05:01:45,258 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 05:01:45,483 INFO L129 PetriNetUnfolder]: 67/447 cut-off events. [2022-01-19 05:01:45,483 INFO L130 PetriNetUnfolder]: For 716/716 co-relation queries the response was YES. [2022-01-19 05:01:45,485 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1130 conditions, 447 events. 67/447 cut-off events. For 716/716 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 2428 event pairs, 15 based on Foata normal form. 1/429 useless extension candidates. Maximal degree in co-relation 1066. Up to 27 conditions per place. [2022-01-19 05:01:45,487 INFO L132 encePairwiseOnDemand]: 100/110 looper letters, 61 selfloop transitions, 16 changer transitions 14/146 dead transitions. [2022-01-19 05:01:45,487 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 177 places, 146 transitions, 911 flow [2022-01-19 05:01:45,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-01-19 05:01:45,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2022-01-19 05:01:45,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 1988 transitions. [2022-01-19 05:01:45,491 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.753030303030303 [2022-01-19 05:01:45,491 INFO L72 ComplementDD]: Start complementDD. Operand 24 states and 1988 transitions. [2022-01-19 05:01:45,491 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 1988 transitions. [2022-01-19 05:01:45,492 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 05:01:45,492 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 24 states and 1988 transitions. [2022-01-19 05:01:45,495 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 25 states, 24 states have (on average 82.83333333333333) internal successors, (1988), 24 states have internal predecessors, (1988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:01:45,497 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 25 states, 25 states have (on average 110.0) internal successors, (2750), 25 states have internal predecessors, (2750), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:01:45,498 INFO L81 ComplementDD]: Finished complementDD. Result has 25 states, 25 states have (on average 110.0) internal successors, (2750), 25 states have internal predecessors, (2750), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:01:45,498 INFO L186 Difference]: Start difference. First operand has 159 places, 95 transitions, 433 flow. Second operand 24 states and 1988 transitions. [2022-01-19 05:01:45,498 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 177 places, 146 transitions, 911 flow [2022-01-19 05:01:45,502 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 161 places, 146 transitions, 810 flow, removed 39 selfloop flow, removed 16 redundant places. [2022-01-19 05:01:45,503 INFO L242 Difference]: Finished difference. Result has 165 places, 92 transitions, 396 flow [2022-01-19 05:01:45,504 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=110, PETRI_DIFFERENCE_MINUEND_FLOW=374, PETRI_DIFFERENCE_MINUEND_PLACES=138, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=95, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=79, PETRI_DIFFERENCE_SUBTRAHEND_STATES=24, PETRI_FLOW=396, PETRI_PLACES=165, PETRI_TRANSITIONS=92} [2022-01-19 05:01:45,504 INFO L334 CegarLoopForPetriNet]: 89 programPoint places, 76 predicate places. [2022-01-19 05:01:45,504 INFO L470 AbstractCegarLoop]: Abstraction has has 165 places, 92 transitions, 396 flow [2022-01-19 05:01:45,505 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 80.72727272727273) internal successors, (888), 11 states have internal predecessors, (888), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:01:45,505 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 05:01:45,505 INFO L254 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 05:01:45,505 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-01-19 05:01:45,505 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-19 05:01:45,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 05:01:45,505 INFO L85 PathProgramCache]: Analyzing trace with hash -522473868, now seen corresponding path program 2 times [2022-01-19 05:01:45,505 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 05:01:45,506 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1872421668] [2022-01-19 05:01:45,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 05:01:45,506 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 05:01:45,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 05:01:45,571 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-01-19 05:01:45,572 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 05:01:45,572 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1872421668] [2022-01-19 05:01:45,572 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1872421668] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-19 05:01:45,572 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [407755477] [2022-01-19 05:01:45,572 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-01-19 05:01:45,573 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-19 05:01:45,573 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-19 05:01:45,574 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-19 05:01:45,575 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-01-19 05:01:45,651 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-01-19 05:01:45,652 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-19 05:01:45,653 INFO L263 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 10 conjunts are in the unsatisfiable core [2022-01-19 05:01:45,655 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-19 05:01:45,775 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-01-19 05:01:45,775 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-19 05:01:45,916 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-01-19 05:01:45,916 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [407755477] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-19 05:01:45,916 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-19 05:01:45,916 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 22 [2022-01-19 05:01:45,916 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [672958939] [2022-01-19 05:01:45,916 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-19 05:01:45,917 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-01-19 05:01:45,917 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 05:01:45,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-01-19 05:01:45,917 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=378, Unknown=0, NotChecked=0, Total=462 [2022-01-19 05:01:45,918 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 110 [2022-01-19 05:01:45,919 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 165 places, 92 transitions, 396 flow. Second operand has 22 states, 22 states have (on average 81.18181818181819) internal successors, (1786), 22 states have internal predecessors, (1786), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:01:45,919 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 05:01:45,919 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 110 [2022-01-19 05:01:45,919 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 05:01:46,372 INFO L129 PetriNetUnfolder]: 62/359 cut-off events. [2022-01-19 05:01:46,372 INFO L130 PetriNetUnfolder]: For 571/571 co-relation queries the response was YES. [2022-01-19 05:01:46,374 INFO L84 FinitePrefix]: Finished finitePrefix Result has 955 conditions, 359 events. 62/359 cut-off events. For 571/571 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 1740 event pairs, 10 based on Foata normal form. 4/349 useless extension candidates. Maximal degree in co-relation 922. Up to 27 conditions per place. [2022-01-19 05:01:46,375 INFO L132 encePairwiseOnDemand]: 100/110 looper letters, 21 selfloop transitions, 6 changer transitions 58/140 dead transitions. [2022-01-19 05:01:46,375 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 192 places, 140 transitions, 824 flow [2022-01-19 05:01:46,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-01-19 05:01:46,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2022-01-19 05:01:46,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 3091 transitions. [2022-01-19 05:01:46,378 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7394736842105263 [2022-01-19 05:01:46,378 INFO L72 ComplementDD]: Start complementDD. Operand 38 states and 3091 transitions. [2022-01-19 05:01:46,378 INFO L73 IsDeterministic]: Start isDeterministic. Operand 38 states and 3091 transitions. [2022-01-19 05:01:46,379 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 05:01:46,379 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 38 states and 3091 transitions. [2022-01-19 05:01:46,382 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 39 states, 38 states have (on average 81.34210526315789) internal successors, (3091), 38 states have internal predecessors, (3091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:01:46,386 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 39 states, 39 states have (on average 110.0) internal successors, (4290), 39 states have internal predecessors, (4290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:01:46,387 INFO L81 ComplementDD]: Finished complementDD. Result has 39 states, 39 states have (on average 110.0) internal successors, (4290), 39 states have internal predecessors, (4290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:01:46,387 INFO L186 Difference]: Start difference. First operand has 165 places, 92 transitions, 396 flow. Second operand 38 states and 3091 transitions. [2022-01-19 05:01:46,387 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 192 places, 140 transitions, 824 flow [2022-01-19 05:01:46,390 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 172 places, 140 transitions, 751 flow, removed 17 selfloop flow, removed 20 redundant places. [2022-01-19 05:01:46,391 INFO L242 Difference]: Finished difference. Result has 185 places, 74 transitions, 259 flow [2022-01-19 05:01:46,391 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=110, PETRI_DIFFERENCE_MINUEND_FLOW=349, PETRI_DIFFERENCE_MINUEND_PLACES=135, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=92, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=86, PETRI_DIFFERENCE_SUBTRAHEND_STATES=38, PETRI_FLOW=259, PETRI_PLACES=185, PETRI_TRANSITIONS=74} [2022-01-19 05:01:46,392 INFO L334 CegarLoopForPetriNet]: 89 programPoint places, 96 predicate places. [2022-01-19 05:01:46,392 INFO L470 AbstractCegarLoop]: Abstraction has has 185 places, 74 transitions, 259 flow [2022-01-19 05:01:46,392 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 81.18181818181819) internal successors, (1786), 22 states have internal predecessors, (1786), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:01:46,392 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 05:01:46,392 INFO L254 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 05:01:46,412 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-01-19 05:01:46,610 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable19 [2022-01-19 05:01:46,610 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-19 05:01:46,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 05:01:46,611 INFO L85 PathProgramCache]: Analyzing trace with hash 644818846, now seen corresponding path program 3 times [2022-01-19 05:01:46,611 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 05:01:46,611 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1158443857] [2022-01-19 05:01:46,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 05:01:46,611 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 05:01:46,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 05:01:46,672 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-01-19 05:01:46,672 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 05:01:46,672 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1158443857] [2022-01-19 05:01:46,672 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1158443857] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-19 05:01:46,672 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [241690225] [2022-01-19 05:01:46,672 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-01-19 05:01:46,672 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-19 05:01:46,672 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-19 05:01:46,673 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-19 05:01:46,709 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-01-19 05:01:46,795 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-01-19 05:01:46,795 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-19 05:01:46,796 INFO L263 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 10 conjunts are in the unsatisfiable core [2022-01-19 05:01:46,800 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-19 05:01:46,915 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-01-19 05:01:46,915 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-19 05:01:47,070 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-01-19 05:01:47,071 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [241690225] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-19 05:01:47,071 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-19 05:01:47,071 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 22 [2022-01-19 05:01:47,071 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [807600627] [2022-01-19 05:01:47,071 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-19 05:01:47,072 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-01-19 05:01:47,072 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 05:01:47,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-01-19 05:01:47,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=378, Unknown=0, NotChecked=0, Total=462 [2022-01-19 05:01:47,073 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 110 [2022-01-19 05:01:47,074 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 185 places, 74 transitions, 259 flow. Second operand has 22 states, 22 states have (on average 81.0909090909091) internal successors, (1784), 22 states have internal predecessors, (1784), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:01:47,074 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 05:01:47,074 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 110 [2022-01-19 05:01:47,074 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 05:01:47,175 INFO L129 PetriNetUnfolder]: 26/251 cut-off events. [2022-01-19 05:01:47,175 INFO L130 PetriNetUnfolder]: For 221/221 co-relation queries the response was YES. [2022-01-19 05:01:47,176 INFO L84 FinitePrefix]: Finished finitePrefix Result has 490 conditions, 251 events. 26/251 cut-off events. For 221/221 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 919 event pairs, 10 based on Foata normal form. 1/238 useless extension candidates. Maximal degree in co-relation 453. Up to 27 conditions per place. [2022-01-19 05:01:47,176 INFO L132 encePairwiseOnDemand]: 100/110 looper letters, 0 selfloop transitions, 0 changer transitions 80/80 dead transitions. [2022-01-19 05:01:47,176 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 139 places, 80 transitions, 325 flow [2022-01-19 05:01:47,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-19 05:01:47,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-01-19 05:01:47,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 896 transitions. [2022-01-19 05:01:47,178 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.740495867768595 [2022-01-19 05:01:47,178 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 896 transitions. [2022-01-19 05:01:47,178 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 896 transitions. [2022-01-19 05:01:47,178 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 05:01:47,178 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 896 transitions. [2022-01-19 05:01:47,179 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 81.45454545454545) internal successors, (896), 11 states have internal predecessors, (896), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:01:47,180 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 110.0) internal successors, (1320), 12 states have internal predecessors, (1320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:01:47,180 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 110.0) internal successors, (1320), 12 states have internal predecessors, (1320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:01:47,180 INFO L186 Difference]: Start difference. First operand has 185 places, 74 transitions, 259 flow. Second operand 11 states and 896 transitions. [2022-01-19 05:01:47,181 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 139 places, 80 transitions, 325 flow [2022-01-19 05:01:47,182 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 109 places, 80 transitions, 266 flow, removed 16 selfloop flow, removed 30 redundant places. [2022-01-19 05:01:47,182 INFO L242 Difference]: Finished difference. Result has 109 places, 0 transitions, 0 flow [2022-01-19 05:01:47,182 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=110, PETRI_DIFFERENCE_MINUEND_FLOW=188, PETRI_DIFFERENCE_MINUEND_PLACES=99, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=72, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=0, PETRI_PLACES=109, PETRI_TRANSITIONS=0} [2022-01-19 05:01:47,182 INFO L334 CegarLoopForPetriNet]: 89 programPoint places, 20 predicate places. [2022-01-19 05:01:47,183 INFO L470 AbstractCegarLoop]: Abstraction has has 109 places, 0 transitions, 0 flow [2022-01-19 05:01:47,183 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 81.0909090909091) internal successors, (1784), 22 states have internal predecessors, (1784), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:01:47,183 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2022-01-19 05:01:47,183 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (2 of 4 remaining) [2022-01-19 05:01:47,183 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (1 of 4 remaining) [2022-01-19 05:01:47,183 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 4 remaining) [2022-01-19 05:01:47,227 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-01-19 05:01:47,393 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-19 05:01:47,393 INFO L732 BasicCegarLoop]: Path program histogram: [3, 2, 2, 2, 1, 1, 1, 1] [2022-01-19 05:01:47,393 INFO L309 ceAbstractionStarter]: Result for error location AllErrorsAtOnce was SAFE,SAFE,SAFE,SAFE (1/2) [2022-01-19 05:01:47,394 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2022-01-19 05:01:47,394 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-01-19 05:01:47,395 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-01-19 05:01:47,395 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 120 places, 110 transitions, 262 flow [2022-01-19 05:01:47,400 INFO L129 PetriNetUnfolder]: 5/133 cut-off events. [2022-01-19 05:01:47,401 INFO L130 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2022-01-19 05:01:47,401 INFO L84 FinitePrefix]: Finished finitePrefix Result has 154 conditions, 133 events. 5/133 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 193 event pairs, 0 based on Foata normal form. 0/123 useless extension candidates. Maximal degree in co-relation 147. Up to 8 conditions per place. [2022-01-19 05:01:47,401 INFO L82 GeneralOperation]: Start removeDead. Operand has 120 places, 110 transitions, 262 flow [2022-01-19 05:01:47,402 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 89 places, 81 transitions, 186 flow [2022-01-19 05:01:47,406 INFO L129 PetriNetUnfolder]: 5/128 cut-off events. [2022-01-19 05:01:47,406 INFO L130 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2022-01-19 05:01:47,407 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 05:01:47,407 INFO L254 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 05:01:47,407 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1INUSE_VIOLATION === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-01-19 05:01:47,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 05:01:47,408 INFO L85 PathProgramCache]: Analyzing trace with hash 1737120457, now seen corresponding path program 1 times [2022-01-19 05:01:47,408 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 05:01:47,408 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [942553499] [2022-01-19 05:01:47,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 05:01:47,408 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 05:01:47,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-19 05:01:47,419 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-01-19 05:01:47,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-19 05:01:47,441 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-01-19 05:01:47,441 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-01-19 05:01:47,441 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATION (1 of 2 remaining) [2022-01-19 05:01:47,441 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION (0 of 2 remaining) [2022-01-19 05:01:47,441 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-01-19 05:01:47,441 INFO L732 BasicCegarLoop]: Path program histogram: [1] [2022-01-19 05:01:47,442 INFO L309 ceAbstractionStarter]: Result for error location InUseError was UNSAFE,UNKNOWN (2/2) [2022-01-19 05:01:47,442 WARN L235 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2022-01-19 05:01:47,442 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2022-01-19 05:01:47,451 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread4of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:47,451 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread4of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:47,452 WARN L322 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:47,452 WARN L322 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:47,452 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread4of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:47,452 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread4of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:47,452 WARN L322 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:47,452 WARN L322 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:47,452 WARN L322 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:47,452 WARN L322 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:47,452 WARN L322 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:47,452 WARN L322 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:47,452 WARN L322 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:47,452 WARN L322 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:47,452 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:47,452 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:47,452 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:47,452 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:47,453 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread3of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:47,453 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread3of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:47,453 WARN L322 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:47,453 WARN L322 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:47,453 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread3of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:47,453 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread3of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:47,453 WARN L322 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:47,453 WARN L322 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:47,453 WARN L322 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:47,453 WARN L322 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:47,453 WARN L322 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:47,453 WARN L322 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:47,453 WARN L322 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:47,453 WARN L322 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:47,453 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:47,453 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:47,453 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:47,454 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:47,454 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread2of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:47,454 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread2of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:47,454 WARN L322 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:47,454 WARN L322 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:47,454 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread2of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:47,454 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread2of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:47,454 WARN L322 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:47,454 WARN L322 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:47,454 WARN L322 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:47,457 WARN L322 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:47,457 WARN L322 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:47,457 WARN L322 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:47,457 WARN L322 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:47,457 WARN L322 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:47,458 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:47,458 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:47,458 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:47,458 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:47,458 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:47,458 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:47,458 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:47,458 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:47,458 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:47,458 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:47,458 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:47,458 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:47,458 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:47,458 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:47,458 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:47,458 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:47,458 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:47,459 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:47,459 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:47,459 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:47,459 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:47,459 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:47,459 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:47,459 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:47,459 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:47,459 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:47,459 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:47,459 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:47,459 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:47,459 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:47,459 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:47,459 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:47,459 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:47,460 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:47,460 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:47,460 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:47,460 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:47,460 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:47,460 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:47,460 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:47,460 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:47,460 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:47,460 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:47,460 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:47,460 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:47,460 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:47,460 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:47,460 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:47,460 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:47,461 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:47,461 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:47,461 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:47,461 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:47,461 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:47,461 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:47,461 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:47,461 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:47,461 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:47,461 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:47,461 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:47,461 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:47,461 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:47,461 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:47,461 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:47,461 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:47,461 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:47,461 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:47,462 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:47,462 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:47,462 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:47,462 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:47,462 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:47,462 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:47,462 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:47,462 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:47,462 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:47,462 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:47,462 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:47,462 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:47,462 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:47,462 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:47,462 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:47,462 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:47,462 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:47,462 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:47,463 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:47,463 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:47,463 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:47,463 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:47,463 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:47,463 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:47,463 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:47,463 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:47,463 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:47,463 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:47,463 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:47,463 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:47,463 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:47,463 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:47,463 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:47,463 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:47,463 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:47,464 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:47,464 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:47,464 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:47,464 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:47,464 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:47,464 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:47,464 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:47,464 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:47,464 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:47,464 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:47,464 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:47,464 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:47,464 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:47,464 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:47,464 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:47,464 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:47,465 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:47,465 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:47,465 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:47,465 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:47,465 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:47,465 WARN L322 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:47,466 WARN L322 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:47,466 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:47,466 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:47,466 WARN L322 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:47,466 WARN L322 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:47,466 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:47,466 WARN L322 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:47,466 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:47,466 WARN L322 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:47,467 WARN L322 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:47,467 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:47,467 WARN L322 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:47,467 WARN L322 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:47,467 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:47,467 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:47,467 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:47,467 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:47,467 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:47,467 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:47,467 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:47,468 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:47,468 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:47,468 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:47,468 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:47,468 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:47,468 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:47,469 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:47,469 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:47,469 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:47,469 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:47,469 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:47,469 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:47,470 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:47,470 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:47,470 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:47,470 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:47,470 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:47,470 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:47,470 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-01-19 05:01:47,471 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-19 05:01:47,471 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-01-19 05:01:47,471 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-01-19 05:01:47,472 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 144 places, 131 transitions, 326 flow [2022-01-19 05:01:47,478 INFO L129 PetriNetUnfolder]: 6/159 cut-off events. [2022-01-19 05:01:47,478 INFO L130 PetriNetUnfolder]: For 16/16 co-relation queries the response was YES. [2022-01-19 05:01:47,479 INFO L84 FinitePrefix]: Finished finitePrefix Result has 188 conditions, 159 events. 6/159 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 227 event pairs, 0 based on Foata normal form. 0/147 useless extension candidates. Maximal degree in co-relation 179. Up to 10 conditions per place. [2022-01-19 05:01:47,479 INFO L82 GeneralOperation]: Start removeDead. Operand has 144 places, 131 transitions, 326 flow [2022-01-19 05:01:47,479 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 98 places, 88 transitions, 211 flow [2022-01-19 05:01:47,481 INFO L129 PetriNetUnfolder]: 1/42 cut-off events. [2022-01-19 05:01:47,481 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-01-19 05:01:47,481 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 05:01:47,481 INFO L254 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] [2022-01-19 05:01:47,481 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-19 05:01:47,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 05:01:47,481 INFO L85 PathProgramCache]: Analyzing trace with hash -2005294478, now seen corresponding path program 1 times [2022-01-19 05:01:47,482 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 05:01:47,482 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [59262658] [2022-01-19 05:01:47,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 05:01:47,482 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 05:01:47,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 05:01:47,504 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 05:01:47,504 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 05:01:47,505 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [59262658] [2022-01-19 05:01:47,505 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [59262658] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 05:01:47,505 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 05:01:47,505 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-19 05:01:47,505 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [63053121] [2022-01-19 05:01:47,505 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 05:01:47,505 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-19 05:01:47,505 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 05:01:47,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-19 05:01:47,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-19 05:01:47,506 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 96 out of 131 [2022-01-19 05:01:47,506 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 98 places, 88 transitions, 211 flow. Second operand has 5 states, 5 states have (on average 97.4) internal successors, (487), 5 states have internal predecessors, (487), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:01:47,506 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 05:01:47,506 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 96 of 131 [2022-01-19 05:01:47,506 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 05:01:47,983 INFO L129 PetriNetUnfolder]: 2465/5719 cut-off events. [2022-01-19 05:01:47,983 INFO L130 PetriNetUnfolder]: For 2918/2918 co-relation queries the response was YES. [2022-01-19 05:01:48,000 INFO L84 FinitePrefix]: Finished finitePrefix Result has 10838 conditions, 5719 events. 2465/5719 cut-off events. For 2918/2918 co-relation queries the response was YES. Maximal size of possible extension queue 353. Compared 50362 event pairs, 734 based on Foata normal form. 1002/6427 useless extension candidates. Maximal degree in co-relation 10802. Up to 1465 conditions per place. [2022-01-19 05:01:48,015 INFO L132 encePairwiseOnDemand]: 120/131 looper letters, 25 selfloop transitions, 5 changer transitions 68/160 dead transitions. [2022-01-19 05:01:48,015 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 160 transitions, 677 flow [2022-01-19 05:01:48,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-19 05:01:48,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-01-19 05:01:48,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 873 transitions. [2022-01-19 05:01:48,016 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8330152671755725 [2022-01-19 05:01:48,016 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 873 transitions. [2022-01-19 05:01:48,016 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 873 transitions. [2022-01-19 05:01:48,017 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 05:01:48,017 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 873 transitions. [2022-01-19 05:01:48,018 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 109.125) internal successors, (873), 8 states have internal predecessors, (873), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:01:48,021 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 131.0) internal successors, (1179), 9 states have internal predecessors, (1179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:01:48,021 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 131.0) internal successors, (1179), 9 states have internal predecessors, (1179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:01:48,021 INFO L186 Difference]: Start difference. First operand has 98 places, 88 transitions, 211 flow. Second operand 8 states and 873 transitions. [2022-01-19 05:01:48,021 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 104 places, 160 transitions, 677 flow [2022-01-19 05:01:48,023 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 103 places, 160 transitions, 628 flow, removed 24 selfloop flow, removed 1 redundant places. [2022-01-19 05:01:48,024 INFO L242 Difference]: Finished difference. Result has 108 places, 85 transitions, 241 flow [2022-01-19 05:01:48,024 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=131, PETRI_DIFFERENCE_MINUEND_FLOW=192, PETRI_DIFFERENCE_MINUEND_PLACES=96, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=85, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=80, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=241, PETRI_PLACES=108, PETRI_TRANSITIONS=85} [2022-01-19 05:01:48,024 INFO L334 CegarLoopForPetriNet]: 98 programPoint places, 10 predicate places. [2022-01-19 05:01:48,024 INFO L470 AbstractCegarLoop]: Abstraction has has 108 places, 85 transitions, 241 flow [2022-01-19 05:01:48,024 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 97.4) internal successors, (487), 5 states have internal predecessors, (487), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:01:48,024 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 05:01:48,025 INFO L254 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] [2022-01-19 05:01:48,025 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-01-19 05:01:48,025 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-19 05:01:48,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 05:01:48,025 INFO L85 PathProgramCache]: Analyzing trace with hash 1225581279, now seen corresponding path program 1 times [2022-01-19 05:01:48,025 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 05:01:48,025 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [459036401] [2022-01-19 05:01:48,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 05:01:48,025 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 05:01:48,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 05:01:48,055 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 05:01:48,056 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 05:01:48,056 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [459036401] [2022-01-19 05:01:48,056 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [459036401] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 05:01:48,056 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 05:01:48,056 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-19 05:01:48,056 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1937322238] [2022-01-19 05:01:48,056 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 05:01:48,056 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-19 05:01:48,056 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 05:01:48,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-19 05:01:48,057 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-01-19 05:01:48,057 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 131 [2022-01-19 05:01:48,057 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 108 places, 85 transitions, 241 flow. Second operand has 7 states, 7 states have (on average 96.57142857142857) internal successors, (676), 7 states have internal predecessors, (676), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:01:48,057 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 05:01:48,058 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 131 [2022-01-19 05:01:48,058 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 05:01:48,587 INFO L129 PetriNetUnfolder]: 2188/4857 cut-off events. [2022-01-19 05:01:48,587 INFO L130 PetriNetUnfolder]: For 4010/4010 co-relation queries the response was YES. [2022-01-19 05:01:48,604 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13285 conditions, 4857 events. 2188/4857 cut-off events. For 4010/4010 co-relation queries the response was YES. Maximal size of possible extension queue 363. Compared 42258 event pairs, 765 based on Foata normal form. 65/4756 useless extension candidates. Maximal degree in co-relation 13243. Up to 1610 conditions per place. [2022-01-19 05:01:48,626 INFO L132 encePairwiseOnDemand]: 122/131 looper letters, 52 selfloop transitions, 13 changer transitions 39/165 dead transitions. [2022-01-19 05:01:48,627 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 108 places, 165 transitions, 860 flow [2022-01-19 05:01:48,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-19 05:01:48,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-01-19 05:01:48,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1056 transitions. [2022-01-19 05:01:48,628 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8061068702290076 [2022-01-19 05:01:48,628 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1056 transitions. [2022-01-19 05:01:48,628 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1056 transitions. [2022-01-19 05:01:48,628 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 05:01:48,628 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1056 transitions. [2022-01-19 05:01:48,629 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 105.6) internal successors, (1056), 10 states have internal predecessors, (1056), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:01:48,631 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 131.0) internal successors, (1441), 11 states have internal predecessors, (1441), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:01:48,631 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 131.0) internal successors, (1441), 11 states have internal predecessors, (1441), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:01:48,631 INFO L186 Difference]: Start difference. First operand has 108 places, 85 transitions, 241 flow. Second operand 10 states and 1056 transitions. [2022-01-19 05:01:48,631 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 108 places, 165 transitions, 860 flow [2022-01-19 05:01:48,658 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 105 places, 165 transitions, 836 flow, removed 8 selfloop flow, removed 3 redundant places. [2022-01-19 05:01:48,660 INFO L242 Difference]: Finished difference. Result has 112 places, 93 transitions, 353 flow [2022-01-19 05:01:48,661 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=131, PETRI_DIFFERENCE_MINUEND_FLOW=232, PETRI_DIFFERENCE_MINUEND_PLACES=96, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=85, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=75, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=353, PETRI_PLACES=112, PETRI_TRANSITIONS=93} [2022-01-19 05:01:48,661 INFO L334 CegarLoopForPetriNet]: 98 programPoint places, 14 predicate places. [2022-01-19 05:01:48,661 INFO L470 AbstractCegarLoop]: Abstraction has has 112 places, 93 transitions, 353 flow [2022-01-19 05:01:48,661 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 96.57142857142857) internal successors, (676), 7 states have internal predecessors, (676), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:01:48,662 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 05:01:48,662 INFO L254 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 05:01:48,662 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-01-19 05:01:48,662 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-19 05:01:48,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 05:01:48,662 INFO L85 PathProgramCache]: Analyzing trace with hash 1933405436, now seen corresponding path program 1 times [2022-01-19 05:01:48,662 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 05:01:48,662 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [109374312] [2022-01-19 05:01:48,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 05:01:48,663 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 05:01:48,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 05:01:48,698 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-01-19 05:01:48,698 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 05:01:48,698 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [109374312] [2022-01-19 05:01:48,698 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [109374312] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 05:01:48,698 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 05:01:48,698 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-19 05:01:48,698 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1061906255] [2022-01-19 05:01:48,699 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 05:01:48,699 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-19 05:01:48,699 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 05:01:48,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-19 05:01:48,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-01-19 05:01:48,701 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 131 [2022-01-19 05:01:48,701 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 112 places, 93 transitions, 353 flow. Second operand has 7 states, 7 states have (on average 96.71428571428571) internal successors, (677), 7 states have internal predecessors, (677), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:01:48,701 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 05:01:48,701 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 131 [2022-01-19 05:01:48,701 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 05:01:49,528 INFO L129 PetriNetUnfolder]: 2925/7384 cut-off events. [2022-01-19 05:01:49,528 INFO L130 PetriNetUnfolder]: For 16585/16585 co-relation queries the response was YES. [2022-01-19 05:01:49,569 INFO L84 FinitePrefix]: Finished finitePrefix Result has 24563 conditions, 7384 events. 2925/7384 cut-off events. For 16585/16585 co-relation queries the response was YES. Maximal size of possible extension queue 586. Compared 74460 event pairs, 932 based on Foata normal form. 108/7347 useless extension candidates. Maximal degree in co-relation 24515. Up to 2242 conditions per place. [2022-01-19 05:01:49,615 INFO L132 encePairwiseOnDemand]: 122/131 looper letters, 58 selfloop transitions, 20 changer transitions 45/184 dead transitions. [2022-01-19 05:01:49,616 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 117 places, 184 transitions, 1284 flow [2022-01-19 05:01:49,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-19 05:01:49,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-01-19 05:01:49,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1053 transitions. [2022-01-19 05:01:49,617 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8038167938931298 [2022-01-19 05:01:49,617 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1053 transitions. [2022-01-19 05:01:49,617 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1053 transitions. [2022-01-19 05:01:49,618 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 05:01:49,618 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1053 transitions. [2022-01-19 05:01:49,619 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 105.3) internal successors, (1053), 10 states have internal predecessors, (1053), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:01:49,620 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 131.0) internal successors, (1441), 11 states have internal predecessors, (1441), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:01:49,620 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 131.0) internal successors, (1441), 11 states have internal predecessors, (1441), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:01:49,620 INFO L186 Difference]: Start difference. First operand has 112 places, 93 transitions, 353 flow. Second operand 10 states and 1053 transitions. [2022-01-19 05:01:49,620 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 117 places, 184 transitions, 1284 flow [2022-01-19 05:01:49,738 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 111 places, 184 transitions, 1149 flow, removed 58 selfloop flow, removed 6 redundant places. [2022-01-19 05:01:49,740 INFO L242 Difference]: Finished difference. Result has 118 places, 105 transitions, 513 flow [2022-01-19 05:01:49,740 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=131, PETRI_DIFFERENCE_MINUEND_FLOW=315, PETRI_DIFFERENCE_MINUEND_PLACES=102, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=93, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=78, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=513, PETRI_PLACES=118, PETRI_TRANSITIONS=105} [2022-01-19 05:01:49,740 INFO L334 CegarLoopForPetriNet]: 98 programPoint places, 20 predicate places. [2022-01-19 05:01:49,741 INFO L470 AbstractCegarLoop]: Abstraction has has 118 places, 105 transitions, 513 flow [2022-01-19 05:01:49,741 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 96.71428571428571) internal successors, (677), 7 states have internal predecessors, (677), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:01:49,741 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 05:01:49,741 INFO L254 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 05:01:49,741 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-01-19 05:01:49,741 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-19 05:01:49,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 05:01:49,742 INFO L85 PathProgramCache]: Analyzing trace with hash -180020742, now seen corresponding path program 1 times [2022-01-19 05:01:49,742 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 05:01:49,742 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [665030992] [2022-01-19 05:01:49,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 05:01:49,742 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 05:01:49,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 05:01:49,784 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-01-19 05:01:49,785 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 05:01:49,785 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [665030992] [2022-01-19 05:01:49,785 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [665030992] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 05:01:49,785 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 05:01:49,785 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-01-19 05:01:49,785 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [75420954] [2022-01-19 05:01:49,785 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 05:01:49,786 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-19 05:01:49,786 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 05:01:49,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-19 05:01:49,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2022-01-19 05:01:49,787 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 94 out of 131 [2022-01-19 05:01:49,787 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 118 places, 105 transitions, 513 flow. Second operand has 9 states, 9 states have (on average 95.66666666666667) internal successors, (861), 9 states have internal predecessors, (861), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:01:49,787 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 05:01:49,787 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 94 of 131 [2022-01-19 05:01:49,787 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 05:01:50,801 INFO L129 PetriNetUnfolder]: 3071/7008 cut-off events. [2022-01-19 05:01:50,802 INFO L130 PetriNetUnfolder]: For 22338/22338 co-relation queries the response was YES. [2022-01-19 05:01:50,843 INFO L84 FinitePrefix]: Finished finitePrefix Result has 26398 conditions, 7008 events. 3071/7008 cut-off events. For 22338/22338 co-relation queries the response was YES. Maximal size of possible extension queue 570. Compared 68341 event pairs, 781 based on Foata normal form. 19/6966 useless extension candidates. Maximal degree in co-relation 26347. Up to 1894 conditions per place. [2022-01-19 05:01:50,896 INFO L132 encePairwiseOnDemand]: 121/131 looper letters, 106 selfloop transitions, 38 changer transitions 27/231 dead transitions. [2022-01-19 05:01:50,896 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 130 places, 231 transitions, 1712 flow [2022-01-19 05:01:50,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-19 05:01:50,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2022-01-19 05:01:50,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 1767 transitions. [2022-01-19 05:01:50,898 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.79344409519533 [2022-01-19 05:01:50,898 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 1767 transitions. [2022-01-19 05:01:50,899 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 1767 transitions. [2022-01-19 05:01:50,899 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 05:01:50,899 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 1767 transitions. [2022-01-19 05:01:50,901 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 103.94117647058823) internal successors, (1767), 17 states have internal predecessors, (1767), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:01:50,903 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 131.0) internal successors, (2358), 18 states have internal predecessors, (2358), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:01:50,903 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 131.0) internal successors, (2358), 18 states have internal predecessors, (2358), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:01:50,903 INFO L186 Difference]: Start difference. First operand has 118 places, 105 transitions, 513 flow. Second operand 17 states and 1767 transitions. [2022-01-19 05:01:50,903 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 130 places, 231 transitions, 1712 flow [2022-01-19 05:01:51,047 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 125 places, 231 transitions, 1526 flow, removed 90 selfloop flow, removed 5 redundant places. [2022-01-19 05:01:51,049 INFO L242 Difference]: Finished difference. Result has 132 places, 118 transitions, 730 flow [2022-01-19 05:01:51,049 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=131, PETRI_DIFFERENCE_MINUEND_FLOW=471, PETRI_DIFFERENCE_MINUEND_PLACES=109, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=105, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=25, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=76, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=730, PETRI_PLACES=132, PETRI_TRANSITIONS=118} [2022-01-19 05:01:51,049 INFO L334 CegarLoopForPetriNet]: 98 programPoint places, 34 predicate places. [2022-01-19 05:01:51,050 INFO L470 AbstractCegarLoop]: Abstraction has has 132 places, 118 transitions, 730 flow [2022-01-19 05:01:51,050 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 95.66666666666667) internal successors, (861), 9 states have internal predecessors, (861), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:01:51,050 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 05:01:51,050 INFO L254 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 05:01:51,050 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-01-19 05:01:51,050 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-19 05:01:51,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 05:01:51,051 INFO L85 PathProgramCache]: Analyzing trace with hash -147506822, now seen corresponding path program 2 times [2022-01-19 05:01:51,051 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 05:01:51,051 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [784356575] [2022-01-19 05:01:51,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 05:01:51,051 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 05:01:51,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 05:01:51,100 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-01-19 05:01:51,101 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 05:01:51,101 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [784356575] [2022-01-19 05:01:51,101 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [784356575] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 05:01:51,101 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 05:01:51,101 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-01-19 05:01:51,101 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2136372864] [2022-01-19 05:01:51,101 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 05:01:51,101 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-19 05:01:51,101 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 05:01:51,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-19 05:01:51,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2022-01-19 05:01:51,102 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 94 out of 131 [2022-01-19 05:01:51,103 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 132 places, 118 transitions, 730 flow. Second operand has 9 states, 9 states have (on average 95.66666666666667) internal successors, (861), 9 states have internal predecessors, (861), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:01:51,103 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 05:01:51,103 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 94 of 131 [2022-01-19 05:01:51,103 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 05:01:52,238 INFO L129 PetriNetUnfolder]: 3143/8288 cut-off events. [2022-01-19 05:01:52,239 INFO L130 PetriNetUnfolder]: For 31075/31075 co-relation queries the response was YES. [2022-01-19 05:01:52,278 INFO L84 FinitePrefix]: Finished finitePrefix Result has 29784 conditions, 8288 events. 3143/8288 cut-off events. For 31075/31075 co-relation queries the response was YES. Maximal size of possible extension queue 642. Compared 86334 event pairs, 1114 based on Foata normal form. 19/8073 useless extension candidates. Maximal degree in co-relation 29729. Up to 1991 conditions per place. [2022-01-19 05:01:52,329 INFO L132 encePairwiseOnDemand]: 121/131 looper letters, 109 selfloop transitions, 43 changer transitions 27/239 dead transitions. [2022-01-19 05:01:52,329 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 144 places, 239 transitions, 1943 flow [2022-01-19 05:01:52,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-19 05:01:52,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2022-01-19 05:01:52,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 1767 transitions. [2022-01-19 05:01:52,331 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.79344409519533 [2022-01-19 05:01:52,331 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 1767 transitions. [2022-01-19 05:01:52,331 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 1767 transitions. [2022-01-19 05:01:52,331 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 05:01:52,331 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 1767 transitions. [2022-01-19 05:01:52,333 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 103.94117647058823) internal successors, (1767), 17 states have internal predecessors, (1767), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:01:52,335 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 131.0) internal successors, (2358), 18 states have internal predecessors, (2358), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:01:52,335 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 131.0) internal successors, (2358), 18 states have internal predecessors, (2358), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:01:52,335 INFO L186 Difference]: Start difference. First operand has 132 places, 118 transitions, 730 flow. Second operand 17 states and 1767 transitions. [2022-01-19 05:01:52,335 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 144 places, 239 transitions, 1943 flow [2022-01-19 05:01:52,531 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 133 places, 239 transitions, 1715 flow, removed 80 selfloop flow, removed 11 redundant places. [2022-01-19 05:01:52,533 INFO L242 Difference]: Finished difference. Result has 140 places, 127 transitions, 879 flow [2022-01-19 05:01:52,533 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=131, PETRI_DIFFERENCE_MINUEND_FLOW=636, PETRI_DIFFERENCE_MINUEND_PLACES=117, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=118, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=34, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=80, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=879, PETRI_PLACES=140, PETRI_TRANSITIONS=127} [2022-01-19 05:01:52,534 INFO L334 CegarLoopForPetriNet]: 98 programPoint places, 42 predicate places. [2022-01-19 05:01:52,534 INFO L470 AbstractCegarLoop]: Abstraction has has 140 places, 127 transitions, 879 flow [2022-01-19 05:01:52,535 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 95.66666666666667) internal successors, (861), 9 states have internal predecessors, (861), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:01:52,535 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 05:01:52,535 INFO L254 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 05:01:52,535 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-01-19 05:01:52,535 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-19 05:01:52,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 05:01:52,535 INFO L85 PathProgramCache]: Analyzing trace with hash -701023176, now seen corresponding path program 1 times [2022-01-19 05:01:52,535 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 05:01:52,535 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1928986214] [2022-01-19 05:01:52,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 05:01:52,536 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 05:01:52,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 05:01:52,569 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-01-19 05:01:52,570 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 05:01:52,570 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1928986214] [2022-01-19 05:01:52,570 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1928986214] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 05:01:52,570 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 05:01:52,570 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-19 05:01:52,570 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1926400709] [2022-01-19 05:01:52,570 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 05:01:52,570 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-19 05:01:52,570 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 05:01:52,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-19 05:01:52,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-01-19 05:01:52,571 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 131 [2022-01-19 05:01:52,571 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 140 places, 127 transitions, 879 flow. Second operand has 7 states, 7 states have (on average 96.85714285714286) internal successors, (678), 7 states have internal predecessors, (678), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:01:52,571 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 05:01:52,571 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 131 [2022-01-19 05:01:52,572 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 05:01:53,930 INFO L129 PetriNetUnfolder]: 3618/9752 cut-off events. [2022-01-19 05:01:53,931 INFO L130 PetriNetUnfolder]: For 50978/50978 co-relation queries the response was YES. [2022-01-19 05:01:53,989 INFO L84 FinitePrefix]: Finished finitePrefix Result has 41741 conditions, 9752 events. 3618/9752 cut-off events. For 50978/50978 co-relation queries the response was YES. Maximal size of possible extension queue 929. Compared 110971 event pairs, 1240 based on Foata normal form. 201/9877 useless extension candidates. Maximal degree in co-relation 41684. Up to 3030 conditions per place. [2022-01-19 05:01:54,034 INFO L132 encePairwiseOnDemand]: 122/131 looper letters, 104 selfloop transitions, 40 changer transitions 89/294 dead transitions. [2022-01-19 05:01:54,034 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 145 places, 294 transitions, 3443 flow [2022-01-19 05:01:54,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-19 05:01:54,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-01-19 05:01:54,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1046 transitions. [2022-01-19 05:01:54,044 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7984732824427481 [2022-01-19 05:01:54,044 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1046 transitions. [2022-01-19 05:01:54,044 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1046 transitions. [2022-01-19 05:01:54,044 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 05:01:54,044 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1046 transitions. [2022-01-19 05:01:54,045 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 104.6) internal successors, (1046), 10 states have internal predecessors, (1046), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:01:54,046 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 131.0) internal successors, (1441), 11 states have internal predecessors, (1441), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:01:54,046 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 131.0) internal successors, (1441), 11 states have internal predecessors, (1441), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:01:54,046 INFO L186 Difference]: Start difference. First operand has 140 places, 127 transitions, 879 flow. Second operand 10 states and 1046 transitions. [2022-01-19 05:01:54,047 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 145 places, 294 transitions, 3443 flow [2022-01-19 05:01:54,443 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 132 places, 294 transitions, 3114 flow, removed 60 selfloop flow, removed 13 redundant places. [2022-01-19 05:01:54,447 INFO L242 Difference]: Finished difference. Result has 139 places, 154 transitions, 1328 flow [2022-01-19 05:01:54,447 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=131, PETRI_DIFFERENCE_MINUEND_FLOW=774, PETRI_DIFFERENCE_MINUEND_PLACES=123, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=127, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=95, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=1328, PETRI_PLACES=139, PETRI_TRANSITIONS=154} [2022-01-19 05:01:54,447 INFO L334 CegarLoopForPetriNet]: 98 programPoint places, 41 predicate places. [2022-01-19 05:01:54,447 INFO L470 AbstractCegarLoop]: Abstraction has has 139 places, 154 transitions, 1328 flow [2022-01-19 05:01:54,447 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 96.85714285714286) internal successors, (678), 7 states have internal predecessors, (678), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:01:54,447 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 05:01:54,448 INFO L254 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 05:01:54,448 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-01-19 05:01:54,448 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-19 05:01:54,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 05:01:54,448 INFO L85 PathProgramCache]: Analyzing trace with hash -930440522, now seen corresponding path program 1 times [2022-01-19 05:01:54,448 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 05:01:54,448 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [591681982] [2022-01-19 05:01:54,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 05:01:54,448 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 05:01:54,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 05:01:54,489 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-01-19 05:01:54,489 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 05:01:54,489 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [591681982] [2022-01-19 05:01:54,489 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [591681982] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 05:01:54,489 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 05:01:54,489 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-01-19 05:01:54,490 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [80066000] [2022-01-19 05:01:54,490 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 05:01:54,491 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-19 05:01:54,491 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 05:01:54,491 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-19 05:01:54,491 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2022-01-19 05:01:54,492 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 94 out of 131 [2022-01-19 05:01:54,492 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 139 places, 154 transitions, 1328 flow. Second operand has 9 states, 9 states have (on average 95.77777777777777) internal successors, (862), 9 states have internal predecessors, (862), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:01:54,492 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 05:01:54,492 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 94 of 131 [2022-01-19 05:01:54,492 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 05:01:55,809 INFO L129 PetriNetUnfolder]: 3432/9165 cut-off events. [2022-01-19 05:01:55,809 INFO L130 PetriNetUnfolder]: For 59203/59203 co-relation queries the response was YES. [2022-01-19 05:01:55,869 INFO L84 FinitePrefix]: Finished finitePrefix Result has 41710 conditions, 9165 events. 3432/9165 cut-off events. For 59203/59203 co-relation queries the response was YES. Maximal size of possible extension queue 822. Compared 101715 event pairs, 1153 based on Foata normal form. 43/9149 useless extension candidates. Maximal degree in co-relation 41650. Up to 2723 conditions per place. [2022-01-19 05:01:55,930 INFO L132 encePairwiseOnDemand]: 121/131 looper letters, 131 selfloop transitions, 80 changer transitions 37/308 dead transitions. [2022-01-19 05:01:55,931 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 151 places, 308 transitions, 3463 flow [2022-01-19 05:01:55,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-19 05:01:55,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2022-01-19 05:01:55,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 1761 transitions. [2022-01-19 05:01:55,932 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7907498877413561 [2022-01-19 05:01:55,933 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 1761 transitions. [2022-01-19 05:01:55,933 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 1761 transitions. [2022-01-19 05:01:55,933 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 05:01:55,933 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 1761 transitions. [2022-01-19 05:01:55,935 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 103.58823529411765) internal successors, (1761), 17 states have internal predecessors, (1761), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:01:55,936 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 131.0) internal successors, (2358), 18 states have internal predecessors, (2358), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:01:55,937 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 131.0) internal successors, (2358), 18 states have internal predecessors, (2358), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:01:55,937 INFO L186 Difference]: Start difference. First operand has 139 places, 154 transitions, 1328 flow. Second operand 17 states and 1761 transitions. [2022-01-19 05:01:55,937 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 151 places, 308 transitions, 3463 flow [2022-01-19 05:01:56,395 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 146 places, 308 transitions, 3158 flow, removed 148 selfloop flow, removed 5 redundant places. [2022-01-19 05:01:56,398 INFO L242 Difference]: Finished difference. Result has 153 places, 180 transitions, 1864 flow [2022-01-19 05:01:56,398 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=131, PETRI_DIFFERENCE_MINUEND_FLOW=1233, PETRI_DIFFERENCE_MINUEND_PLACES=130, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=154, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=54, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=92, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=1864, PETRI_PLACES=153, PETRI_TRANSITIONS=180} [2022-01-19 05:01:56,398 INFO L334 CegarLoopForPetriNet]: 98 programPoint places, 55 predicate places. [2022-01-19 05:01:56,398 INFO L470 AbstractCegarLoop]: Abstraction has has 153 places, 180 transitions, 1864 flow [2022-01-19 05:01:56,399 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 95.77777777777777) internal successors, (862), 9 states have internal predecessors, (862), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:01:56,399 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 05:01:56,399 INFO L254 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 05:01:56,399 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-01-19 05:01:56,399 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-19 05:01:56,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 05:01:56,399 INFO L85 PathProgramCache]: Analyzing trace with hash 740571830, now seen corresponding path program 2 times [2022-01-19 05:01:56,399 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 05:01:56,399 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [977110388] [2022-01-19 05:01:56,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 05:01:56,400 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 05:01:56,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 05:01:56,451 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-01-19 05:01:56,451 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 05:01:56,451 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [977110388] [2022-01-19 05:01:56,451 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [977110388] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 05:01:56,451 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 05:01:56,451 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-01-19 05:01:56,452 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [8370190] [2022-01-19 05:01:56,452 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 05:01:56,452 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-19 05:01:56,452 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 05:01:56,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-19 05:01:56,452 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2022-01-19 05:01:56,453 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 94 out of 131 [2022-01-19 05:01:56,453 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 153 places, 180 transitions, 1864 flow. Second operand has 9 states, 9 states have (on average 95.77777777777777) internal successors, (862), 9 states have internal predecessors, (862), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:01:56,453 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 05:01:56,453 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 94 of 131 [2022-01-19 05:01:56,453 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 05:01:57,913 INFO L129 PetriNetUnfolder]: 3441/9845 cut-off events. [2022-01-19 05:01:57,913 INFO L130 PetriNetUnfolder]: For 67415/67419 co-relation queries the response was YES. [2022-01-19 05:01:57,968 INFO L84 FinitePrefix]: Finished finitePrefix Result has 44060 conditions, 9845 events. 3441/9845 cut-off events. For 67415/67419 co-relation queries the response was YES. Maximal size of possible extension queue 867. Compared 112754 event pairs, 1372 based on Foata normal form. 36/9727 useless extension candidates. Maximal degree in co-relation 43996. Up to 2788 conditions per place. [2022-01-19 05:01:58,022 INFO L132 encePairwiseOnDemand]: 121/131 looper letters, 141 selfloop transitions, 88 changer transitions 31/320 dead transitions. [2022-01-19 05:01:58,022 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 165 places, 320 transitions, 3794 flow [2022-01-19 05:01:58,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-19 05:01:58,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2022-01-19 05:01:58,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 1761 transitions. [2022-01-19 05:01:58,024 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7907498877413561 [2022-01-19 05:01:58,024 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 1761 transitions. [2022-01-19 05:01:58,024 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 1761 transitions. [2022-01-19 05:01:58,024 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 05:01:58,024 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 1761 transitions. [2022-01-19 05:01:58,026 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 103.58823529411765) internal successors, (1761), 17 states have internal predecessors, (1761), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:01:58,028 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 131.0) internal successors, (2358), 18 states have internal predecessors, (2358), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:01:58,028 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 131.0) internal successors, (2358), 18 states have internal predecessors, (2358), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:01:58,028 INFO L186 Difference]: Start difference. First operand has 153 places, 180 transitions, 1864 flow. Second operand 17 states and 1761 transitions. [2022-01-19 05:01:58,028 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 165 places, 320 transitions, 3794 flow [2022-01-19 05:01:58,466 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 158 places, 320 transitions, 3565 flow, removed 100 selfloop flow, removed 7 redundant places. [2022-01-19 05:01:58,469 INFO L242 Difference]: Finished difference. Result has 165 places, 196 transitions, 2291 flow [2022-01-19 05:01:58,469 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=131, PETRI_DIFFERENCE_MINUEND_FLOW=1775, PETRI_DIFFERENCE_MINUEND_PLACES=142, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=180, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=72, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=102, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=2291, PETRI_PLACES=165, PETRI_TRANSITIONS=196} [2022-01-19 05:01:58,470 INFO L334 CegarLoopForPetriNet]: 98 programPoint places, 67 predicate places. [2022-01-19 05:01:58,470 INFO L470 AbstractCegarLoop]: Abstraction has has 165 places, 196 transitions, 2291 flow [2022-01-19 05:01:58,470 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 95.77777777777777) internal successors, (862), 9 states have internal predecessors, (862), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:01:58,470 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 05:01:58,470 INFO L254 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 05:01:58,470 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-01-19 05:01:58,471 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-19 05:01:58,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 05:01:58,471 INFO L85 PathProgramCache]: Analyzing trace with hash -841973194, now seen corresponding path program 1 times [2022-01-19 05:01:58,471 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 05:01:58,471 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1754231906] [2022-01-19 05:01:58,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 05:01:58,471 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 05:01:58,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 05:01:58,509 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-01-19 05:01:58,509 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 05:01:58,509 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1754231906] [2022-01-19 05:01:58,509 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1754231906] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-19 05:01:58,509 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1237272065] [2022-01-19 05:01:58,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 05:01:58,509 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-19 05:01:58,509 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-19 05:01:58,510 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-19 05:01:58,536 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-01-19 05:01:58,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 05:01:58,599 INFO L263 TraceCheckSpWp]: Trace formula consists of 189 conjuncts, 8 conjunts are in the unsatisfiable core [2022-01-19 05:01:58,606 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-19 05:01:58,705 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-01-19 05:01:58,706 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-19 05:01:58,851 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-01-19 05:01:58,851 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1237272065] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-19 05:01:58,851 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-19 05:01:58,851 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2022-01-19 05:01:58,852 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2079677676] [2022-01-19 05:01:58,852 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-19 05:01:58,852 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-19 05:01:58,852 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 05:01:58,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-19 05:01:58,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=246, Unknown=0, NotChecked=0, Total=306 [2022-01-19 05:01:58,853 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 94 out of 131 [2022-01-19 05:01:58,854 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 165 places, 196 transitions, 2291 flow. Second operand has 18 states, 18 states have (on average 96.16666666666667) internal successors, (1731), 18 states have internal predecessors, (1731), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:01:58,854 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 05:01:58,854 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 94 of 131 [2022-01-19 05:01:58,854 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 05:02:00,835 INFO L129 PetriNetUnfolder]: 3558/10934 cut-off events. [2022-01-19 05:02:00,835 INFO L130 PetriNetUnfolder]: For 85230/85230 co-relation queries the response was YES. [2022-01-19 05:02:00,914 INFO L84 FinitePrefix]: Finished finitePrefix Result has 50893 conditions, 10934 events. 3558/10934 cut-off events. For 85230/85230 co-relation queries the response was YES. Maximal size of possible extension queue 973. Compared 132105 event pairs, 1273 based on Foata normal form. 86/10880 useless extension candidates. Maximal degree in co-relation 50826. Up to 3121 conditions per place. [2022-01-19 05:02:00,975 INFO L132 encePairwiseOnDemand]: 121/131 looper letters, 179 selfloop transitions, 116 changer transitions 74/429 dead transitions. [2022-01-19 05:02:00,975 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 184 places, 429 transitions, 5918 flow [2022-01-19 05:02:00,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-01-19 05:02:00,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2022-01-19 05:02:00,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 2472 transitions. [2022-01-19 05:02:00,980 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7862595419847328 [2022-01-19 05:02:00,980 INFO L72 ComplementDD]: Start complementDD. Operand 24 states and 2472 transitions. [2022-01-19 05:02:00,980 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 2472 transitions. [2022-01-19 05:02:00,982 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 05:02:00,982 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 24 states and 2472 transitions. [2022-01-19 05:02:00,984 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 25 states, 24 states have (on average 103.0) internal successors, (2472), 24 states have internal predecessors, (2472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:02:00,986 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 25 states, 25 states have (on average 131.0) internal successors, (3275), 25 states have internal predecessors, (3275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:02:00,987 INFO L81 ComplementDD]: Finished complementDD. Result has 25 states, 25 states have (on average 131.0) internal successors, (3275), 25 states have internal predecessors, (3275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:02:00,987 INFO L186 Difference]: Start difference. First operand has 165 places, 196 transitions, 2291 flow. Second operand 24 states and 2472 transitions. [2022-01-19 05:02:00,987 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 184 places, 429 transitions, 5918 flow [2022-01-19 05:02:01,801 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 171 places, 429 transitions, 5449 flow, removed 136 selfloop flow, removed 13 redundant places. [2022-01-19 05:02:01,805 INFO L242 Difference]: Finished difference. Result has 185 places, 243 transitions, 3266 flow [2022-01-19 05:02:01,805 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=131, PETRI_DIFFERENCE_MINUEND_FLOW=2100, PETRI_DIFFERENCE_MINUEND_PLACES=148, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=196, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=69, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=113, PETRI_DIFFERENCE_SUBTRAHEND_STATES=24, PETRI_FLOW=3266, PETRI_PLACES=185, PETRI_TRANSITIONS=243} [2022-01-19 05:02:01,806 INFO L334 CegarLoopForPetriNet]: 98 programPoint places, 87 predicate places. [2022-01-19 05:02:01,806 INFO L470 AbstractCegarLoop]: Abstraction has has 185 places, 243 transitions, 3266 flow [2022-01-19 05:02:01,806 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 96.16666666666667) internal successors, (1731), 18 states have internal predecessors, (1731), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:02:01,806 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 05:02:01,806 INFO L254 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 05:02:01,825 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-01-19 05:02:02,009 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-19 05:02:02,010 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-19 05:02:02,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 05:02:02,011 INFO L85 PathProgramCache]: Analyzing trace with hash -874396010, now seen corresponding path program 1 times [2022-01-19 05:02:02,011 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 05:02:02,011 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [145751635] [2022-01-19 05:02:02,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 05:02:02,011 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 05:02:02,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 05:02:02,063 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-01-19 05:02:02,063 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 05:02:02,063 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [145751635] [2022-01-19 05:02:02,064 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [145751635] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 05:02:02,064 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 05:02:02,064 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-19 05:02:02,064 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2135778433] [2022-01-19 05:02:02,064 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 05:02:02,064 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-19 05:02:02,064 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 05:02:02,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-19 05:02:02,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2022-01-19 05:02:02,065 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 93 out of 131 [2022-01-19 05:02:02,066 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 185 places, 243 transitions, 3266 flow. Second operand has 11 states, 11 states have (on average 94.72727272727273) internal successors, (1042), 11 states have internal predecessors, (1042), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:02:02,066 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 05:02:02,066 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 93 of 131 [2022-01-19 05:02:02,066 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 05:02:04,254 INFO L129 PetriNetUnfolder]: 3969/11063 cut-off events. [2022-01-19 05:02:04,255 INFO L130 PetriNetUnfolder]: For 118747/118747 co-relation queries the response was YES. [2022-01-19 05:02:04,329 INFO L84 FinitePrefix]: Finished finitePrefix Result has 57847 conditions, 11063 events. 3969/11063 cut-off events. For 118747/118747 co-relation queries the response was YES. Maximal size of possible extension queue 921. Compared 127814 event pairs, 1160 based on Foata normal form. 5/10983 useless extension candidates. Maximal degree in co-relation 57770. Up to 3146 conditions per place. [2022-01-19 05:02:04,395 INFO L132 encePairwiseOnDemand]: 120/131 looper letters, 220 selfloop transitions, 168 changer transitions 11/458 dead transitions. [2022-01-19 05:02:04,395 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 209 places, 458 transitions, 6103 flow [2022-01-19 05:02:04,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-01-19 05:02:04,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2022-01-19 05:02:04,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 3370 transitions. [2022-01-19 05:02:04,397 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7795512375665048 [2022-01-19 05:02:04,397 INFO L72 ComplementDD]: Start complementDD. Operand 33 states and 3370 transitions. [2022-01-19 05:02:04,397 INFO L73 IsDeterministic]: Start isDeterministic. Operand 33 states and 3370 transitions. [2022-01-19 05:02:04,398 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 05:02:04,398 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 33 states and 3370 transitions. [2022-01-19 05:02:04,401 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 34 states, 33 states have (on average 102.12121212121212) internal successors, (3370), 33 states have internal predecessors, (3370), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:02:04,403 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 34 states, 34 states have (on average 131.0) internal successors, (4454), 34 states have internal predecessors, (4454), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:02:04,404 INFO L81 ComplementDD]: Finished complementDD. Result has 34 states, 34 states have (on average 131.0) internal successors, (4454), 34 states have internal predecessors, (4454), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:02:04,404 INFO L186 Difference]: Start difference. First operand has 185 places, 243 transitions, 3266 flow. Second operand 33 states and 3370 transitions. [2022-01-19 05:02:04,404 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 209 places, 458 transitions, 6103 flow [2022-01-19 05:02:05,865 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 200 places, 458 transitions, 5495 flow, removed 302 selfloop flow, removed 9 redundant places. [2022-01-19 05:02:05,870 INFO L242 Difference]: Finished difference. Result has 207 places, 262 transitions, 3849 flow [2022-01-19 05:02:05,870 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=131, PETRI_DIFFERENCE_MINUEND_FLOW=3102, PETRI_DIFFERENCE_MINUEND_PLACES=168, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=243, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=149, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=91, PETRI_DIFFERENCE_SUBTRAHEND_STATES=33, PETRI_FLOW=3849, PETRI_PLACES=207, PETRI_TRANSITIONS=262} [2022-01-19 05:02:05,870 INFO L334 CegarLoopForPetriNet]: 98 programPoint places, 109 predicate places. [2022-01-19 05:02:05,870 INFO L470 AbstractCegarLoop]: Abstraction has has 207 places, 262 transitions, 3849 flow [2022-01-19 05:02:05,871 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 94.72727272727273) internal successors, (1042), 11 states have internal predecessors, (1042), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:02:05,871 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 05:02:05,871 INFO L254 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 05:02:05,871 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-01-19 05:02:05,871 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-19 05:02:05,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 05:02:05,871 INFO L85 PathProgramCache]: Analyzing trace with hash 810483012, now seen corresponding path program 2 times [2022-01-19 05:02:05,871 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 05:02:05,871 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [692925451] [2022-01-19 05:02:05,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 05:02:05,872 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 05:02:05,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 05:02:05,933 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-01-19 05:02:05,934 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 05:02:05,934 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [692925451] [2022-01-19 05:02:05,934 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [692925451] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 05:02:05,934 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 05:02:05,934 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-19 05:02:05,934 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1007405079] [2022-01-19 05:02:05,934 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 05:02:05,934 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-19 05:02:05,934 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 05:02:05,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-19 05:02:05,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2022-01-19 05:02:05,935 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 93 out of 131 [2022-01-19 05:02:05,936 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 207 places, 262 transitions, 3849 flow. Second operand has 11 states, 11 states have (on average 94.72727272727273) internal successors, (1042), 11 states have internal predecessors, (1042), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:02:05,936 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 05:02:05,936 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 93 of 131 [2022-01-19 05:02:05,936 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 05:02:08,009 INFO L129 PetriNetUnfolder]: 3961/10895 cut-off events. [2022-01-19 05:02:08,009 INFO L130 PetriNetUnfolder]: For 115802/115802 co-relation queries the response was YES. [2022-01-19 05:02:08,095 INFO L84 FinitePrefix]: Finished finitePrefix Result has 56778 conditions, 10895 events. 3961/10895 cut-off events. For 115802/115802 co-relation queries the response was YES. Maximal size of possible extension queue 906. Compared 125042 event pairs, 1155 based on Foata normal form. 5/10829 useless extension candidates. Maximal degree in co-relation 56701. Up to 3153 conditions per place. [2022-01-19 05:02:08,161 INFO L132 encePairwiseOnDemand]: 120/131 looper letters, 221 selfloop transitions, 178 changer transitions 11/469 dead transitions. [2022-01-19 05:02:08,161 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 235 places, 469 transitions, 6365 flow [2022-01-19 05:02:08,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-01-19 05:02:08,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2022-01-19 05:02:08,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 3370 transitions. [2022-01-19 05:02:08,163 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7795512375665048 [2022-01-19 05:02:08,163 INFO L72 ComplementDD]: Start complementDD. Operand 33 states and 3370 transitions. [2022-01-19 05:02:08,164 INFO L73 IsDeterministic]: Start isDeterministic. Operand 33 states and 3370 transitions. [2022-01-19 05:02:08,164 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 05:02:08,164 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 33 states and 3370 transitions. [2022-01-19 05:02:08,167 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 34 states, 33 states have (on average 102.12121212121212) internal successors, (3370), 33 states have internal predecessors, (3370), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:02:08,169 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 34 states, 34 states have (on average 131.0) internal successors, (4454), 34 states have internal predecessors, (4454), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:02:08,170 INFO L81 ComplementDD]: Finished complementDD. Result has 34 states, 34 states have (on average 131.0) internal successors, (4454), 34 states have internal predecessors, (4454), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:02:08,170 INFO L186 Difference]: Start difference. First operand has 207 places, 262 transitions, 3849 flow. Second operand 33 states and 3370 transitions. [2022-01-19 05:02:08,170 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 235 places, 469 transitions, 6365 flow [2022-01-19 05:02:09,337 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 212 places, 469 transitions, 5836 flow, removed 118 selfloop flow, removed 23 redundant places. [2022-01-19 05:02:09,342 INFO L242 Difference]: Finished difference. Result has 219 places, 278 transitions, 4223 flow [2022-01-19 05:02:09,342 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=131, PETRI_DIFFERENCE_MINUEND_FLOW=3516, PETRI_DIFFERENCE_MINUEND_PLACES=180, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=262, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=162, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=97, PETRI_DIFFERENCE_SUBTRAHEND_STATES=33, PETRI_FLOW=4223, PETRI_PLACES=219, PETRI_TRANSITIONS=278} [2022-01-19 05:02:09,342 INFO L334 CegarLoopForPetriNet]: 98 programPoint places, 121 predicate places. [2022-01-19 05:02:09,342 INFO L470 AbstractCegarLoop]: Abstraction has has 219 places, 278 transitions, 4223 flow [2022-01-19 05:02:09,343 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 94.72727272727273) internal successors, (1042), 11 states have internal predecessors, (1042), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:02:09,343 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 05:02:09,343 INFO L254 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 05:02:09,343 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-01-19 05:02:09,343 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-19 05:02:09,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 05:02:09,343 INFO L85 PathProgramCache]: Analyzing trace with hash -262472380, now seen corresponding path program 3 times [2022-01-19 05:02:09,343 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 05:02:09,343 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1754230346] [2022-01-19 05:02:09,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 05:02:09,344 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 05:02:09,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 05:02:09,405 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-01-19 05:02:09,405 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 05:02:09,405 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1754230346] [2022-01-19 05:02:09,406 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1754230346] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 05:02:09,406 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 05:02:09,406 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-19 05:02:09,406 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1251459093] [2022-01-19 05:02:09,406 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 05:02:09,406 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-19 05:02:09,406 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 05:02:09,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-19 05:02:09,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2022-01-19 05:02:09,407 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 93 out of 131 [2022-01-19 05:02:09,407 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 219 places, 278 transitions, 4223 flow. Second operand has 11 states, 11 states have (on average 94.72727272727273) internal successors, (1042), 11 states have internal predecessors, (1042), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:02:09,407 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 05:02:09,408 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 93 of 131 [2022-01-19 05:02:09,408 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 05:02:11,567 INFO L129 PetriNetUnfolder]: 3953/11128 cut-off events. [2022-01-19 05:02:11,567 INFO L130 PetriNetUnfolder]: For 130207/130207 co-relation queries the response was YES. [2022-01-19 05:02:11,705 INFO L84 FinitePrefix]: Finished finitePrefix Result has 58737 conditions, 11128 events. 3953/11128 cut-off events. For 130207/130207 co-relation queries the response was YES. Maximal size of possible extension queue 916. Compared 128306 event pairs, 1182 based on Foata normal form. 5/11013 useless extension candidates. Maximal degree in co-relation 58659. Up to 3160 conditions per place. [2022-01-19 05:02:11,793 INFO L132 encePairwiseOnDemand]: 120/131 looper letters, 225 selfloop transitions, 185 changer transitions 11/480 dead transitions. [2022-01-19 05:02:11,793 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 247 places, 480 transitions, 6714 flow [2022-01-19 05:02:11,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-01-19 05:02:11,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2022-01-19 05:02:11,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 3370 transitions. [2022-01-19 05:02:11,796 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7795512375665048 [2022-01-19 05:02:11,796 INFO L72 ComplementDD]: Start complementDD. Operand 33 states and 3370 transitions. [2022-01-19 05:02:11,796 INFO L73 IsDeterministic]: Start isDeterministic. Operand 33 states and 3370 transitions. [2022-01-19 05:02:11,797 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 05:02:11,797 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 33 states and 3370 transitions. [2022-01-19 05:02:11,800 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 34 states, 33 states have (on average 102.12121212121212) internal successors, (3370), 33 states have internal predecessors, (3370), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:02:11,805 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 34 states, 34 states have (on average 131.0) internal successors, (4454), 34 states have internal predecessors, (4454), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:02:11,806 INFO L81 ComplementDD]: Finished complementDD. Result has 34 states, 34 states have (on average 131.0) internal successors, (4454), 34 states have internal predecessors, (4454), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:02:11,806 INFO L186 Difference]: Start difference. First operand has 219 places, 278 transitions, 4223 flow. Second operand 33 states and 3370 transitions. [2022-01-19 05:02:11,806 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 247 places, 480 transitions, 6714 flow [2022-01-19 05:02:12,826 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 224 places, 480 transitions, 6211 flow, removed 114 selfloop flow, removed 23 redundant places. [2022-01-19 05:02:12,832 INFO L242 Difference]: Finished difference. Result has 231 places, 293 transitions, 4624 flow [2022-01-19 05:02:12,832 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=131, PETRI_DIFFERENCE_MINUEND_FLOW=3904, PETRI_DIFFERENCE_MINUEND_PLACES=192, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=278, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=170, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=105, PETRI_DIFFERENCE_SUBTRAHEND_STATES=33, PETRI_FLOW=4624, PETRI_PLACES=231, PETRI_TRANSITIONS=293} [2022-01-19 05:02:12,833 INFO L334 CegarLoopForPetriNet]: 98 programPoint places, 133 predicate places. [2022-01-19 05:02:12,833 INFO L470 AbstractCegarLoop]: Abstraction has has 231 places, 293 transitions, 4624 flow [2022-01-19 05:02:12,833 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 94.72727272727273) internal successors, (1042), 11 states have internal predecessors, (1042), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:02:12,833 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 05:02:12,833 INFO L254 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 05:02:12,834 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-01-19 05:02:12,834 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-19 05:02:12,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 05:02:12,834 INFO L85 PathProgramCache]: Analyzing trace with hash -62976682, now seen corresponding path program 4 times [2022-01-19 05:02:12,834 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 05:02:12,834 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1429690267] [2022-01-19 05:02:12,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 05:02:12,834 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 05:02:12,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 05:02:12,891 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-01-19 05:02:12,891 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 05:02:12,891 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1429690267] [2022-01-19 05:02:12,891 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1429690267] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 05:02:12,891 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 05:02:12,891 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-19 05:02:12,891 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2016194084] [2022-01-19 05:02:12,891 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 05:02:12,891 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-19 05:02:12,892 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 05:02:12,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-19 05:02:12,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2022-01-19 05:02:12,892 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 93 out of 131 [2022-01-19 05:02:12,893 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 231 places, 293 transitions, 4624 flow. Second operand has 11 states, 11 states have (on average 94.72727272727273) internal successors, (1042), 11 states have internal predecessors, (1042), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:02:12,893 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 05:02:12,893 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 93 of 131 [2022-01-19 05:02:12,893 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 05:02:15,171 INFO L129 PetriNetUnfolder]: 3945/11466 cut-off events. [2022-01-19 05:02:15,172 INFO L130 PetriNetUnfolder]: For 142395/142395 co-relation queries the response was YES. [2022-01-19 05:02:15,306 INFO L84 FinitePrefix]: Finished finitePrefix Result has 60480 conditions, 11466 events. 3945/11466 cut-off events. For 142395/142395 co-relation queries the response was YES. Maximal size of possible extension queue 942. Compared 134467 event pairs, 1210 based on Foata normal form. 5/11293 useless extension candidates. Maximal degree in co-relation 60399. Up to 3167 conditions per place. [2022-01-19 05:02:15,394 INFO L132 encePairwiseOnDemand]: 120/131 looper letters, 239 selfloop transitions, 185 changer transitions 11/494 dead transitions. [2022-01-19 05:02:15,394 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 259 places, 494 transitions, 7159 flow [2022-01-19 05:02:15,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-01-19 05:02:15,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2022-01-19 05:02:15,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 3370 transitions. [2022-01-19 05:02:15,397 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7795512375665048 [2022-01-19 05:02:15,397 INFO L72 ComplementDD]: Start complementDD. Operand 33 states and 3370 transitions. [2022-01-19 05:02:15,397 INFO L73 IsDeterministic]: Start isDeterministic. Operand 33 states and 3370 transitions. [2022-01-19 05:02:15,398 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 05:02:15,398 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 33 states and 3370 transitions. [2022-01-19 05:02:15,400 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 34 states, 33 states have (on average 102.12121212121212) internal successors, (3370), 33 states have internal predecessors, (3370), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:02:15,402 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 34 states, 34 states have (on average 131.0) internal successors, (4454), 34 states have internal predecessors, (4454), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:02:15,403 INFO L81 ComplementDD]: Finished complementDD. Result has 34 states, 34 states have (on average 131.0) internal successors, (4454), 34 states have internal predecessors, (4454), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:02:15,403 INFO L186 Difference]: Start difference. First operand has 231 places, 293 transitions, 4624 flow. Second operand 33 states and 3370 transitions. [2022-01-19 05:02:15,403 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 259 places, 494 transitions, 7159 flow [2022-01-19 05:02:16,727 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 237 places, 494 transitions, 6669 flow, removed 112 selfloop flow, removed 22 redundant places. [2022-01-19 05:02:16,732 INFO L242 Difference]: Finished difference. Result has 244 places, 304 transitions, 4968 flow [2022-01-19 05:02:16,733 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=131, PETRI_DIFFERENCE_MINUEND_FLOW=4318, PETRI_DIFFERENCE_MINUEND_PLACES=205, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=293, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=174, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=116, PETRI_DIFFERENCE_SUBTRAHEND_STATES=33, PETRI_FLOW=4968, PETRI_PLACES=244, PETRI_TRANSITIONS=304} [2022-01-19 05:02:16,733 INFO L334 CegarLoopForPetriNet]: 98 programPoint places, 146 predicate places. [2022-01-19 05:02:16,733 INFO L470 AbstractCegarLoop]: Abstraction has has 244 places, 304 transitions, 4968 flow [2022-01-19 05:02:16,733 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 94.72727272727273) internal successors, (1042), 11 states have internal predecessors, (1042), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:02:16,733 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 05:02:16,733 INFO L254 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 05:02:16,734 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-01-19 05:02:16,734 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-19 05:02:16,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 05:02:16,734 INFO L85 PathProgramCache]: Analyzing trace with hash -477846204, now seen corresponding path program 5 times [2022-01-19 05:02:16,734 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 05:02:16,734 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [29758754] [2022-01-19 05:02:16,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 05:02:16,734 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 05:02:16,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 05:02:16,785 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-01-19 05:02:16,786 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 05:02:16,786 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [29758754] [2022-01-19 05:02:16,786 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [29758754] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 05:02:16,786 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 05:02:16,786 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-19 05:02:16,786 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1924736796] [2022-01-19 05:02:16,786 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 05:02:16,786 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-19 05:02:16,786 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 05:02:16,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-19 05:02:16,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2022-01-19 05:02:16,787 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 93 out of 131 [2022-01-19 05:02:16,788 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 244 places, 304 transitions, 4968 flow. Second operand has 11 states, 11 states have (on average 94.72727272727273) internal successors, (1042), 11 states have internal predecessors, (1042), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:02:16,788 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 05:02:16,788 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 93 of 131 [2022-01-19 05:02:16,788 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 05:02:19,082 INFO L129 PetriNetUnfolder]: 3937/11999 cut-off events. [2022-01-19 05:02:19,082 INFO L130 PetriNetUnfolder]: For 156581/156581 co-relation queries the response was YES. [2022-01-19 05:02:19,247 INFO L84 FinitePrefix]: Finished finitePrefix Result has 62501 conditions, 11999 events. 3937/11999 cut-off events. For 156581/156581 co-relation queries the response was YES. Maximal size of possible extension queue 970. Compared 143550 event pairs, 1222 based on Foata normal form. 5/11797 useless extension candidates. Maximal degree in co-relation 62417. Up to 3174 conditions per place. [2022-01-19 05:02:19,344 INFO L132 encePairwiseOnDemand]: 120/131 looper letters, 243 selfloop transitions, 190 changer transitions 11/503 dead transitions. [2022-01-19 05:02:19,344 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 272 places, 503 transitions, 7499 flow [2022-01-19 05:02:19,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-01-19 05:02:19,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2022-01-19 05:02:19,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 3370 transitions. [2022-01-19 05:02:19,347 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7795512375665048 [2022-01-19 05:02:19,347 INFO L72 ComplementDD]: Start complementDD. Operand 33 states and 3370 transitions. [2022-01-19 05:02:19,347 INFO L73 IsDeterministic]: Start isDeterministic. Operand 33 states and 3370 transitions. [2022-01-19 05:02:19,348 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 05:02:19,348 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 33 states and 3370 transitions. [2022-01-19 05:02:19,351 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 34 states, 33 states have (on average 102.12121212121212) internal successors, (3370), 33 states have internal predecessors, (3370), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:02:19,353 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 34 states, 34 states have (on average 131.0) internal successors, (4454), 34 states have internal predecessors, (4454), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:02:19,353 INFO L81 ComplementDD]: Finished complementDD. Result has 34 states, 34 states have (on average 131.0) internal successors, (4454), 34 states have internal predecessors, (4454), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:02:19,353 INFO L186 Difference]: Start difference. First operand has 244 places, 304 transitions, 4968 flow. Second operand 33 states and 3370 transitions. [2022-01-19 05:02:19,353 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 272 places, 503 transitions, 7499 flow [2022-01-19 05:02:20,669 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 251 places, 503 transitions, 7040 flow, removed 113 selfloop flow, removed 21 redundant places. [2022-01-19 05:02:20,674 INFO L242 Difference]: Finished difference. Result has 258 places, 317 transitions, 5375 flow [2022-01-19 05:02:20,675 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=131, PETRI_DIFFERENCE_MINUEND_FLOW=4687, PETRI_DIFFERENCE_MINUEND_PLACES=219, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=304, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=177, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=124, PETRI_DIFFERENCE_SUBTRAHEND_STATES=33, PETRI_FLOW=5375, PETRI_PLACES=258, PETRI_TRANSITIONS=317} [2022-01-19 05:02:20,675 INFO L334 CegarLoopForPetriNet]: 98 programPoint places, 160 predicate places. [2022-01-19 05:02:20,675 INFO L470 AbstractCegarLoop]: Abstraction has has 258 places, 317 transitions, 5375 flow [2022-01-19 05:02:20,675 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 94.72727272727273) internal successors, (1042), 11 states have internal predecessors, (1042), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:02:20,675 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 05:02:20,676 INFO L254 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 05:02:20,676 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-01-19 05:02:20,676 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-19 05:02:20,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 05:02:20,676 INFO L85 PathProgramCache]: Analyzing trace with hash -1413174348, now seen corresponding path program 6 times [2022-01-19 05:02:20,676 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 05:02:20,676 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2056629094] [2022-01-19 05:02:20,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 05:02:20,676 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 05:02:20,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 05:02:20,723 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-01-19 05:02:20,724 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 05:02:20,724 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2056629094] [2022-01-19 05:02:20,724 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2056629094] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 05:02:20,724 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 05:02:20,724 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-19 05:02:20,724 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [45373519] [2022-01-19 05:02:20,724 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 05:02:20,725 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-19 05:02:20,725 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 05:02:20,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-19 05:02:20,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2022-01-19 05:02:20,726 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 93 out of 131 [2022-01-19 05:02:20,726 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 258 places, 317 transitions, 5375 flow. Second operand has 11 states, 11 states have (on average 94.72727272727273) internal successors, (1042), 11 states have internal predecessors, (1042), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:02:20,727 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 05:02:20,727 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 93 of 131 [2022-01-19 05:02:20,727 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 05:02:23,192 INFO L129 PetriNetUnfolder]: 3929/11614 cut-off events. [2022-01-19 05:02:23,192 INFO L130 PetriNetUnfolder]: For 168015/168015 co-relation queries the response was YES. [2022-01-19 05:02:23,351 INFO L84 FinitePrefix]: Finished finitePrefix Result has 63822 conditions, 11614 events. 3929/11614 cut-off events. For 168015/168015 co-relation queries the response was YES. Maximal size of possible extension queue 947. Compared 137121 event pairs, 1192 based on Foata normal form. 5/11445 useless extension candidates. Maximal degree in co-relation 63735. Up to 3181 conditions per place. [2022-01-19 05:02:23,445 INFO L132 encePairwiseOnDemand]: 120/131 looper letters, 244 selfloop transitions, 193 changer transitions 11/507 dead transitions. [2022-01-19 05:02:23,445 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 286 places, 507 transitions, 7790 flow [2022-01-19 05:02:23,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-01-19 05:02:23,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2022-01-19 05:02:23,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 3370 transitions. [2022-01-19 05:02:23,448 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7795512375665048 [2022-01-19 05:02:23,448 INFO L72 ComplementDD]: Start complementDD. Operand 33 states and 3370 transitions. [2022-01-19 05:02:23,448 INFO L73 IsDeterministic]: Start isDeterministic. Operand 33 states and 3370 transitions. [2022-01-19 05:02:23,448 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 05:02:23,448 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 33 states and 3370 transitions. [2022-01-19 05:02:23,451 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 34 states, 33 states have (on average 102.12121212121212) internal successors, (3370), 33 states have internal predecessors, (3370), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:02:23,453 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 34 states, 34 states have (on average 131.0) internal successors, (4454), 34 states have internal predecessors, (4454), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:02:23,453 INFO L81 ComplementDD]: Finished complementDD. Result has 34 states, 34 states have (on average 131.0) internal successors, (4454), 34 states have internal predecessors, (4454), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:02:23,453 INFO L186 Difference]: Start difference. First operand has 258 places, 317 transitions, 5375 flow. Second operand 33 states and 3370 transitions. [2022-01-19 05:02:23,453 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 286 places, 507 transitions, 7790 flow [2022-01-19 05:02:24,878 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 262 places, 507 transitions, 7289 flow, removed 107 selfloop flow, removed 24 redundant places. [2022-01-19 05:02:24,884 INFO L242 Difference]: Finished difference. Result has 269 places, 325 transitions, 5644 flow [2022-01-19 05:02:24,884 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=131, PETRI_DIFFERENCE_MINUEND_FLOW=5046, PETRI_DIFFERENCE_MINUEND_PLACES=230, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=317, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=185, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=130, PETRI_DIFFERENCE_SUBTRAHEND_STATES=33, PETRI_FLOW=5644, PETRI_PLACES=269, PETRI_TRANSITIONS=325} [2022-01-19 05:02:24,885 INFO L334 CegarLoopForPetriNet]: 98 programPoint places, 171 predicate places. [2022-01-19 05:02:24,885 INFO L470 AbstractCegarLoop]: Abstraction has has 269 places, 325 transitions, 5644 flow [2022-01-19 05:02:24,885 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 94.72727272727273) internal successors, (1042), 11 states have internal predecessors, (1042), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:02:24,885 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 05:02:24,885 INFO L254 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 05:02:24,885 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-01-19 05:02:24,885 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-19 05:02:24,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 05:02:24,885 INFO L85 PathProgramCache]: Analyzing trace with hash 1989785043, now seen corresponding path program 1 times [2022-01-19 05:02:24,886 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 05:02:24,886 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [449378764] [2022-01-19 05:02:24,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 05:02:24,886 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 05:02:24,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 05:02:24,914 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-01-19 05:02:24,915 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 05:02:24,915 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [449378764] [2022-01-19 05:02:24,915 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [449378764] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 05:02:24,915 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 05:02:24,915 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-19 05:02:24,915 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [216989344] [2022-01-19 05:02:24,915 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 05:02:24,915 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-19 05:02:24,915 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 05:02:24,915 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-19 05:02:24,916 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-01-19 05:02:24,916 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 131 [2022-01-19 05:02:24,916 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 269 places, 325 transitions, 5644 flow. Second operand has 7 states, 7 states have (on average 97.0) internal successors, (679), 7 states have internal predecessors, (679), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:02:24,916 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 05:02:24,916 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 131 [2022-01-19 05:02:24,916 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 05:02:27,275 INFO L129 PetriNetUnfolder]: 3136/11392 cut-off events. [2022-01-19 05:02:27,276 INFO L130 PetriNetUnfolder]: For 210491/210507 co-relation queries the response was YES. [2022-01-19 05:02:27,393 INFO L84 FinitePrefix]: Finished finitePrefix Result has 72673 conditions, 11392 events. 3136/11392 cut-off events. For 210491/210507 co-relation queries the response was YES. Maximal size of possible extension queue 1251. Compared 150757 event pairs, 1103 based on Foata normal form. 389/11683 useless extension candidates. Maximal degree in co-relation 72583. Up to 3930 conditions per place. [2022-01-19 05:02:27,447 INFO L132 encePairwiseOnDemand]: 122/131 looper letters, 311 selfloop transitions, 69 changer transitions 501/942 dead transitions. [2022-01-19 05:02:27,447 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 274 places, 942 transitions, 21448 flow [2022-01-19 05:02:27,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-19 05:02:27,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-01-19 05:02:27,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1036 transitions. [2022-01-19 05:02:27,448 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7908396946564885 [2022-01-19 05:02:27,448 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1036 transitions. [2022-01-19 05:02:27,449 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1036 transitions. [2022-01-19 05:02:27,449 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 05:02:27,449 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1036 transitions. [2022-01-19 05:02:27,450 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 103.6) internal successors, (1036), 10 states have internal predecessors, (1036), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:02:27,450 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 131.0) internal successors, (1441), 11 states have internal predecessors, (1441), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:02:27,450 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 131.0) internal successors, (1441), 11 states have internal predecessors, (1441), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:02:27,450 INFO L186 Difference]: Start difference. First operand has 269 places, 325 transitions, 5644 flow. Second operand 10 states and 1036 transitions. [2022-01-19 05:02:27,450 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 274 places, 942 transitions, 21448 flow [2022-01-19 05:02:29,332 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 254 places, 942 transitions, 20963 flow, removed 54 selfloop flow, removed 20 redundant places. [2022-01-19 05:02:29,341 INFO L242 Difference]: Finished difference. Result has 261 places, 373 transitions, 7138 flow [2022-01-19 05:02:29,341 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=131, PETRI_DIFFERENCE_MINUEND_FLOW=5467, PETRI_DIFFERENCE_MINUEND_PLACES=245, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=325, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=265, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=7138, PETRI_PLACES=261, PETRI_TRANSITIONS=373} [2022-01-19 05:02:29,341 INFO L334 CegarLoopForPetriNet]: 98 programPoint places, 163 predicate places. [2022-01-19 05:02:29,342 INFO L470 AbstractCegarLoop]: Abstraction has has 261 places, 373 transitions, 7138 flow [2022-01-19 05:02:29,342 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 97.0) internal successors, (679), 7 states have internal predecessors, (679), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:02:29,342 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 05:02:29,342 INFO L254 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 05:02:29,342 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-01-19 05:02:29,342 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-19 05:02:29,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 05:02:29,342 INFO L85 PathProgramCache]: Analyzing trace with hash -1959073711, now seen corresponding path program 1 times [2022-01-19 05:02:29,342 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 05:02:29,342 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1623206191] [2022-01-19 05:02:29,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 05:02:29,343 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 05:02:29,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 05:02:29,385 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-01-19 05:02:29,385 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 05:02:29,385 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1623206191] [2022-01-19 05:02:29,385 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1623206191] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-19 05:02:29,385 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [310234124] [2022-01-19 05:02:29,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 05:02:29,386 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-19 05:02:29,386 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-19 05:02:29,387 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-19 05:02:29,388 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-01-19 05:02:29,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 05:02:29,482 INFO L263 TraceCheckSpWp]: Trace formula consists of 215 conjuncts, 8 conjunts are in the unsatisfiable core [2022-01-19 05:02:29,483 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-19 05:02:29,597 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-01-19 05:02:29,597 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-19 05:02:29,728 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-01-19 05:02:29,728 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [310234124] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-19 05:02:29,728 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-19 05:02:29,728 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2022-01-19 05:02:29,728 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [238235648] [2022-01-19 05:02:29,728 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-19 05:02:29,729 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-19 05:02:29,729 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 05:02:29,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-19 05:02:29,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=246, Unknown=0, NotChecked=0, Total=306 [2022-01-19 05:02:29,730 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 94 out of 131 [2022-01-19 05:02:29,730 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 261 places, 373 transitions, 7138 flow. Second operand has 18 states, 18 states have (on average 96.22222222222223) internal successors, (1732), 18 states have internal predecessors, (1732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:02:29,730 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 05:02:29,731 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 94 of 131 [2022-01-19 05:02:29,731 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 05:02:31,802 INFO L129 PetriNetUnfolder]: 2278/9122 cut-off events. [2022-01-19 05:02:31,802 INFO L130 PetriNetUnfolder]: For 191966/191975 co-relation queries the response was YES. [2022-01-19 05:02:31,900 INFO L84 FinitePrefix]: Finished finitePrefix Result has 58639 conditions, 9122 events. 2278/9122 cut-off events. For 191966/191975 co-relation queries the response was YES. Maximal size of possible extension queue 941. Compared 119774 event pairs, 831 based on Foata normal form. 146/9186 useless extension candidates. Maximal degree in co-relation 58546. Up to 2782 conditions per place. [2022-01-19 05:02:31,951 INFO L132 encePairwiseOnDemand]: 121/131 looper letters, 281 selfloop transitions, 145 changer transitions 296/782 dead transitions. [2022-01-19 05:02:31,952 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 280 places, 782 transitions, 17681 flow [2022-01-19 05:02:31,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-01-19 05:02:31,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2022-01-19 05:02:31,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 2446 transitions. [2022-01-19 05:02:31,955 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7779898218829516 [2022-01-19 05:02:31,955 INFO L72 ComplementDD]: Start complementDD. Operand 24 states and 2446 transitions. [2022-01-19 05:02:31,955 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 2446 transitions. [2022-01-19 05:02:31,955 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 05:02:31,955 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 24 states and 2446 transitions. [2022-01-19 05:02:31,957 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 25 states, 24 states have (on average 101.91666666666667) internal successors, (2446), 24 states have internal predecessors, (2446), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:02:31,958 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 25 states, 25 states have (on average 131.0) internal successors, (3275), 25 states have internal predecessors, (3275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:02:31,959 INFO L81 ComplementDD]: Finished complementDD. Result has 25 states, 25 states have (on average 131.0) internal successors, (3275), 25 states have internal predecessors, (3275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:02:31,959 INFO L186 Difference]: Start difference. First operand has 261 places, 373 transitions, 7138 flow. Second operand 24 states and 2446 transitions. [2022-01-19 05:02:31,959 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 280 places, 782 transitions, 17681 flow [2022-01-19 05:02:33,343 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 275 places, 782 transitions, 16514 flow, removed 577 selfloop flow, removed 5 redundant places. [2022-01-19 05:02:33,352 INFO L242 Difference]: Finished difference. Result has 289 places, 398 transitions, 7891 flow [2022-01-19 05:02:33,352 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=131, PETRI_DIFFERENCE_MINUEND_FLOW=6673, PETRI_DIFFERENCE_MINUEND_PLACES=252, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=373, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=104, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=252, PETRI_DIFFERENCE_SUBTRAHEND_STATES=24, PETRI_FLOW=7891, PETRI_PLACES=289, PETRI_TRANSITIONS=398} [2022-01-19 05:02:33,352 INFO L334 CegarLoopForPetriNet]: 98 programPoint places, 191 predicate places. [2022-01-19 05:02:33,352 INFO L470 AbstractCegarLoop]: Abstraction has has 289 places, 398 transitions, 7891 flow [2022-01-19 05:02:33,353 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 96.22222222222223) internal successors, (1732), 18 states have internal predecessors, (1732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:02:33,353 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 05:02:33,353 INFO L254 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 05:02:33,369 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-01-19 05:02:33,568 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2022-01-19 05:02:33,569 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-19 05:02:33,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 05:02:33,569 INFO L85 PathProgramCache]: Analyzing trace with hash -1880360751, now seen corresponding path program 1 times [2022-01-19 05:02:33,569 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 05:02:33,569 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [718381816] [2022-01-19 05:02:33,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 05:02:33,570 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 05:02:33,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 05:02:33,610 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-01-19 05:02:33,610 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 05:02:33,610 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [718381816] [2022-01-19 05:02:33,610 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [718381816] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-19 05:02:33,610 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [143377853] [2022-01-19 05:02:33,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 05:02:33,610 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-19 05:02:33,610 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-19 05:02:33,611 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-19 05:02:33,623 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-01-19 05:02:33,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 05:02:33,709 INFO L263 TraceCheckSpWp]: Trace formula consists of 215 conjuncts, 8 conjunts are in the unsatisfiable core [2022-01-19 05:02:33,710 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-19 05:02:33,827 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-01-19 05:02:33,828 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-19 05:02:33,956 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-01-19 05:02:33,956 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [143377853] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-19 05:02:33,956 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-19 05:02:33,956 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2022-01-19 05:02:33,956 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1299286337] [2022-01-19 05:02:33,956 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-19 05:02:33,956 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-19 05:02:33,956 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 05:02:33,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-19 05:02:33,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=246, Unknown=0, NotChecked=0, Total=306 [2022-01-19 05:02:33,958 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 94 out of 131 [2022-01-19 05:02:33,958 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 289 places, 398 transitions, 7891 flow. Second operand has 18 states, 18 states have (on average 96.27777777777777) internal successors, (1733), 18 states have internal predecessors, (1733), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:02:33,958 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 05:02:33,958 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 94 of 131 [2022-01-19 05:02:33,959 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 05:02:36,011 INFO L129 PetriNetUnfolder]: 1890/8185 cut-off events. [2022-01-19 05:02:36,011 INFO L130 PetriNetUnfolder]: For 188982/188982 co-relation queries the response was YES. [2022-01-19 05:02:36,090 INFO L84 FinitePrefix]: Finished finitePrefix Result has 53768 conditions, 8185 events. 1890/8185 cut-off events. For 188982/188982 co-relation queries the response was YES. Maximal size of possible extension queue 825. Compared 107676 event pairs, 710 based on Foata normal form. 160/8264 useless extension candidates. Maximal degree in co-relation 53664. Up to 2296 conditions per place. [2022-01-19 05:02:36,129 INFO L132 encePairwiseOnDemand]: 121/131 looper letters, 295 selfloop transitions, 144 changer transitions 298/797 dead transitions. [2022-01-19 05:02:36,129 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 304 places, 797 transitions, 18355 flow [2022-01-19 05:02:36,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-01-19 05:02:36,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2022-01-19 05:02:36,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 2444 transitions. [2022-01-19 05:02:36,132 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.77735368956743 [2022-01-19 05:02:36,132 INFO L72 ComplementDD]: Start complementDD. Operand 24 states and 2444 transitions. [2022-01-19 05:02:36,133 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 2444 transitions. [2022-01-19 05:02:36,133 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 05:02:36,133 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 24 states and 2444 transitions. [2022-01-19 05:02:36,135 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 25 states, 24 states have (on average 101.83333333333333) internal successors, (2444), 24 states have internal predecessors, (2444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:02:36,136 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 25 states, 25 states have (on average 131.0) internal successors, (3275), 25 states have internal predecessors, (3275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:02:36,136 INFO L81 ComplementDD]: Finished complementDD. Result has 25 states, 25 states have (on average 131.0) internal successors, (3275), 25 states have internal predecessors, (3275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:02:36,136 INFO L186 Difference]: Start difference. First operand has 289 places, 398 transitions, 7891 flow. Second operand 24 states and 2444 transitions. [2022-01-19 05:02:36,136 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 304 places, 797 transitions, 18355 flow [2022-01-19 05:02:37,754 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 292 places, 797 transitions, 17266 flow, removed 521 selfloop flow, removed 12 redundant places. [2022-01-19 05:02:37,765 INFO L242 Difference]: Finished difference. Result has 306 places, 414 transitions, 8311 flow [2022-01-19 05:02:37,765 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=131, PETRI_DIFFERENCE_MINUEND_FLOW=7494, PETRI_DIFFERENCE_MINUEND_PLACES=269, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=398, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=103, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=277, PETRI_DIFFERENCE_SUBTRAHEND_STATES=24, PETRI_FLOW=8311, PETRI_PLACES=306, PETRI_TRANSITIONS=414} [2022-01-19 05:02:37,765 INFO L334 CegarLoopForPetriNet]: 98 programPoint places, 208 predicate places. [2022-01-19 05:02:37,766 INFO L470 AbstractCegarLoop]: Abstraction has has 306 places, 414 transitions, 8311 flow [2022-01-19 05:02:37,766 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 96.27777777777777) internal successors, (1733), 18 states have internal predecessors, (1733), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:02:37,766 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 05:02:37,766 INFO L254 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 05:02:37,781 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-01-19 05:02:37,966 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2022-01-19 05:02:37,967 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-19 05:02:37,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 05:02:37,967 INFO L85 PathProgramCache]: Analyzing trace with hash -1661001263, now seen corresponding path program 1 times [2022-01-19 05:02:37,967 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 05:02:37,967 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1734246802] [2022-01-19 05:02:37,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 05:02:37,967 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 05:02:37,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 05:02:38,006 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-01-19 05:02:38,007 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 05:02:38,007 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1734246802] [2022-01-19 05:02:38,007 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1734246802] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-19 05:02:38,007 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1339693087] [2022-01-19 05:02:38,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 05:02:38,007 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-19 05:02:38,007 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-19 05:02:38,008 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-19 05:02:38,009 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-01-19 05:02:38,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 05:02:38,094 INFO L263 TraceCheckSpWp]: Trace formula consists of 215 conjuncts, 8 conjunts are in the unsatisfiable core [2022-01-19 05:02:38,095 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-19 05:02:38,215 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-01-19 05:02:38,215 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-19 05:02:38,343 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-01-19 05:02:38,343 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1339693087] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-19 05:02:38,343 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-19 05:02:38,343 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2022-01-19 05:02:38,343 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [354711755] [2022-01-19 05:02:38,343 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-19 05:02:38,344 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-19 05:02:38,344 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 05:02:38,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-19 05:02:38,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=246, Unknown=0, NotChecked=0, Total=306 [2022-01-19 05:02:38,345 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 94 out of 131 [2022-01-19 05:02:38,345 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 306 places, 414 transitions, 8311 flow. Second operand has 18 states, 18 states have (on average 96.33333333333333) internal successors, (1734), 18 states have internal predecessors, (1734), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:02:38,346 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 05:02:38,346 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 94 of 131 [2022-01-19 05:02:38,346 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 05:02:40,104 INFO L129 PetriNetUnfolder]: 1341/6754 cut-off events. [2022-01-19 05:02:40,104 INFO L130 PetriNetUnfolder]: For 157320/157320 co-relation queries the response was YES. [2022-01-19 05:02:40,169 INFO L84 FinitePrefix]: Finished finitePrefix Result has 43102 conditions, 6754 events. 1341/6754 cut-off events. For 157320/157320 co-relation queries the response was YES. Maximal size of possible extension queue 687. Compared 89209 event pairs, 330 based on Foata normal form. 180/6865 useless extension candidates. Maximal degree in co-relation 42992. Up to 1720 conditions per place. [2022-01-19 05:02:40,195 INFO L132 encePairwiseOnDemand]: 121/131 looper letters, 291 selfloop transitions, 120 changer transitions 342/813 dead transitions. [2022-01-19 05:02:40,195 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 321 places, 813 transitions, 18947 flow [2022-01-19 05:02:40,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-01-19 05:02:40,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2022-01-19 05:02:40,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 2437 transitions. [2022-01-19 05:02:40,197 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7751272264631043 [2022-01-19 05:02:40,197 INFO L72 ComplementDD]: Start complementDD. Operand 24 states and 2437 transitions. [2022-01-19 05:02:40,197 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 2437 transitions. [2022-01-19 05:02:40,197 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 05:02:40,197 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 24 states and 2437 transitions. [2022-01-19 05:02:40,199 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 25 states, 24 states have (on average 101.54166666666667) internal successors, (2437), 24 states have internal predecessors, (2437), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:02:40,201 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 25 states, 25 states have (on average 131.0) internal successors, (3275), 25 states have internal predecessors, (3275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:02:40,201 INFO L81 ComplementDD]: Finished complementDD. Result has 25 states, 25 states have (on average 131.0) internal successors, (3275), 25 states have internal predecessors, (3275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:02:40,201 INFO L186 Difference]: Start difference. First operand has 306 places, 414 transitions, 8311 flow. Second operand 24 states and 2437 transitions. [2022-01-19 05:02:40,201 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 321 places, 813 transitions, 18947 flow [2022-01-19 05:02:41,510 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 312 places, 813 transitions, 17914 flow, removed 514 selfloop flow, removed 9 redundant places. [2022-01-19 05:02:41,519 INFO L242 Difference]: Finished difference. Result has 326 places, 391 transitions, 7726 flow [2022-01-19 05:02:41,520 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=131, PETRI_DIFFERENCE_MINUEND_FLOW=7964, PETRI_DIFFERENCE_MINUEND_PLACES=289, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=414, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=89, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=306, PETRI_DIFFERENCE_SUBTRAHEND_STATES=24, PETRI_FLOW=7726, PETRI_PLACES=326, PETRI_TRANSITIONS=391} [2022-01-19 05:02:41,520 INFO L334 CegarLoopForPetriNet]: 98 programPoint places, 228 predicate places. [2022-01-19 05:02:41,520 INFO L470 AbstractCegarLoop]: Abstraction has has 326 places, 391 transitions, 7726 flow [2022-01-19 05:02:41,520 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 96.33333333333333) internal successors, (1734), 18 states have internal predecessors, (1734), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:02:41,520 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 05:02:41,520 INFO L254 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 05:02:41,536 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-01-19 05:02:41,721 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-19 05:02:41,721 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-19 05:02:41,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 05:02:41,721 INFO L85 PathProgramCache]: Analyzing trace with hash 292231759, now seen corresponding path program 1 times [2022-01-19 05:02:41,721 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 05:02:41,721 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1260680490] [2022-01-19 05:02:41,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 05:02:41,722 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 05:02:41,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 05:02:41,769 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-01-19 05:02:41,769 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 05:02:41,769 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1260680490] [2022-01-19 05:02:41,769 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1260680490] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 05:02:41,769 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 05:02:41,769 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-19 05:02:41,769 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [864512102] [2022-01-19 05:02:41,769 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 05:02:41,771 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-19 05:02:41,771 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 05:02:41,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-19 05:02:41,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2022-01-19 05:02:41,771 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 93 out of 131 [2022-01-19 05:02:41,772 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 326 places, 391 transitions, 7726 flow. Second operand has 11 states, 11 states have (on average 94.81818181818181) internal successors, (1043), 11 states have internal predecessors, (1043), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:02:41,772 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 05:02:41,772 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 93 of 131 [2022-01-19 05:02:41,772 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 05:02:43,279 INFO L129 PetriNetUnfolder]: 1044/5333 cut-off events. [2022-01-19 05:02:43,279 INFO L130 PetriNetUnfolder]: For 105806/105827 co-relation queries the response was YES. [2022-01-19 05:02:43,335 INFO L84 FinitePrefix]: Finished finitePrefix Result has 29724 conditions, 5333 events. 1044/5333 cut-off events. For 105806/105827 co-relation queries the response was YES. Maximal size of possible extension queue 427. Compared 65561 event pairs, 320 based on Foata normal form. 29/5250 useless extension candidates. Maximal degree in co-relation 29607. Up to 994 conditions per place. [2022-01-19 05:02:43,358 INFO L132 encePairwiseOnDemand]: 120/131 looper letters, 299 selfloop transitions, 176 changer transitions 64/598 dead transitions. [2022-01-19 05:02:43,359 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 348 places, 598 transitions, 11678 flow [2022-01-19 05:02:43,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-01-19 05:02:43,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2022-01-19 05:02:43,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 3237 transitions. [2022-01-19 05:02:43,361 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7721851145038168 [2022-01-19 05:02:43,361 INFO L72 ComplementDD]: Start complementDD. Operand 32 states and 3237 transitions. [2022-01-19 05:02:43,361 INFO L73 IsDeterministic]: Start isDeterministic. Operand 32 states and 3237 transitions. [2022-01-19 05:02:43,361 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 05:02:43,361 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 32 states and 3237 transitions. [2022-01-19 05:02:43,363 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 33 states, 32 states have (on average 101.15625) internal successors, (3237), 32 states have internal predecessors, (3237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:02:43,365 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 33 states, 33 states have (on average 131.0) internal successors, (4323), 33 states have internal predecessors, (4323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:02:43,365 INFO L81 ComplementDD]: Finished complementDD. Result has 33 states, 33 states have (on average 131.0) internal successors, (4323), 33 states have internal predecessors, (4323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:02:43,366 INFO L186 Difference]: Start difference. First operand has 326 places, 391 transitions, 7726 flow. Second operand 32 states and 3237 transitions. [2022-01-19 05:02:43,366 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 348 places, 598 transitions, 11678 flow [2022-01-19 05:02:44,278 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 337 places, 598 transitions, 10772 flow, removed 423 selfloop flow, removed 11 redundant places. [2022-01-19 05:02:44,285 INFO L242 Difference]: Finished difference. Result has 344 places, 387 transitions, 7454 flow [2022-01-19 05:02:44,286 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=131, PETRI_DIFFERENCE_MINUEND_FLOW=7272, PETRI_DIFFERENCE_MINUEND_PLACES=306, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=391, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=169, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=220, PETRI_DIFFERENCE_SUBTRAHEND_STATES=32, PETRI_FLOW=7454, PETRI_PLACES=344, PETRI_TRANSITIONS=387} [2022-01-19 05:02:44,286 INFO L334 CegarLoopForPetriNet]: 98 programPoint places, 246 predicate places. [2022-01-19 05:02:44,286 INFO L470 AbstractCegarLoop]: Abstraction has has 344 places, 387 transitions, 7454 flow [2022-01-19 05:02:44,287 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 94.81818181818181) internal successors, (1043), 11 states have internal predecessors, (1043), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:02:44,287 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 05:02:44,287 INFO L254 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 05:02:44,287 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-01-19 05:02:44,287 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-19 05:02:44,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 05:02:44,287 INFO L85 PathProgramCache]: Analyzing trace with hash 409240143, now seen corresponding path program 2 times [2022-01-19 05:02:44,287 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 05:02:44,287 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [110351493] [2022-01-19 05:02:44,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 05:02:44,288 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 05:02:44,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 05:02:44,341 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-01-19 05:02:44,341 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 05:02:44,341 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [110351493] [2022-01-19 05:02:44,341 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [110351493] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 05:02:44,341 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 05:02:44,341 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-19 05:02:44,342 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1994703779] [2022-01-19 05:02:44,342 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 05:02:44,342 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-19 05:02:44,342 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 05:02:44,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-19 05:02:44,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2022-01-19 05:02:44,343 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 93 out of 131 [2022-01-19 05:02:44,344 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 344 places, 387 transitions, 7454 flow. Second operand has 11 states, 11 states have (on average 94.81818181818181) internal successors, (1043), 11 states have internal predecessors, (1043), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:02:44,344 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 05:02:44,344 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 93 of 131 [2022-01-19 05:02:44,344 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 05:02:45,664 INFO L129 PetriNetUnfolder]: 1008/4681 cut-off events. [2022-01-19 05:02:45,664 INFO L130 PetriNetUnfolder]: For 95532/95532 co-relation queries the response was YES. [2022-01-19 05:02:45,708 INFO L84 FinitePrefix]: Finished finitePrefix Result has 26867 conditions, 4681 events. 1008/4681 cut-off events. For 95532/95532 co-relation queries the response was YES. Maximal size of possible extension queue 383. Compared 55589 event pairs, 248 based on Foata normal form. 10/4633 useless extension candidates. Maximal degree in co-relation 26750. Up to 913 conditions per place. [2022-01-19 05:02:45,726 INFO L132 encePairwiseOnDemand]: 120/131 looper letters, 295 selfloop transitions, 171 changer transitions 62/587 dead transitions. [2022-01-19 05:02:45,727 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 371 places, 587 transitions, 11053 flow [2022-01-19 05:02:45,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-01-19 05:02:45,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2022-01-19 05:02:45,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 3233 transitions. [2022-01-19 05:02:45,729 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7712309160305344 [2022-01-19 05:02:45,729 INFO L72 ComplementDD]: Start complementDD. Operand 32 states and 3233 transitions. [2022-01-19 05:02:45,729 INFO L73 IsDeterministic]: Start isDeterministic. Operand 32 states and 3233 transitions. [2022-01-19 05:02:45,729 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 05:02:45,729 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 32 states and 3233 transitions. [2022-01-19 05:02:45,731 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 33 states, 32 states have (on average 101.03125) internal successors, (3233), 32 states have internal predecessors, (3233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:02:45,733 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 33 states, 33 states have (on average 131.0) internal successors, (4323), 33 states have internal predecessors, (4323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:02:45,733 INFO L81 ComplementDD]: Finished complementDD. Result has 33 states, 33 states have (on average 131.0) internal successors, (4323), 33 states have internal predecessors, (4323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:02:45,733 INFO L186 Difference]: Start difference. First operand has 344 places, 387 transitions, 7454 flow. Second operand 32 states and 3233 transitions. [2022-01-19 05:02:45,733 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 371 places, 587 transitions, 11053 flow [2022-01-19 05:02:46,397 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 349 places, 587 transitions, 10479 flow, removed 171 selfloop flow, removed 22 redundant places. [2022-01-19 05:02:46,404 INFO L242 Difference]: Finished difference. Result has 356 places, 381 transitions, 7227 flow [2022-01-19 05:02:46,404 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=131, PETRI_DIFFERENCE_MINUEND_FLOW=7048, PETRI_DIFFERENCE_MINUEND_PLACES=318, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=387, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=164, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=220, PETRI_DIFFERENCE_SUBTRAHEND_STATES=32, PETRI_FLOW=7227, PETRI_PLACES=356, PETRI_TRANSITIONS=381} [2022-01-19 05:02:46,405 INFO L334 CegarLoopForPetriNet]: 98 programPoint places, 258 predicate places. [2022-01-19 05:02:46,405 INFO L470 AbstractCegarLoop]: Abstraction has has 356 places, 381 transitions, 7227 flow [2022-01-19 05:02:46,405 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 94.81818181818181) internal successors, (1043), 11 states have internal predecessors, (1043), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:02:46,405 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 05:02:46,405 INFO L254 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 05:02:46,405 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-01-19 05:02:46,405 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-19 05:02:46,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 05:02:46,406 INFO L85 PathProgramCache]: Analyzing trace with hash -419546231, now seen corresponding path program 1 times [2022-01-19 05:02:46,406 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 05:02:46,406 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1230271478] [2022-01-19 05:02:46,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 05:02:46,406 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 05:02:46,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 05:02:46,450 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-01-19 05:02:46,450 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 05:02:46,450 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1230271478] [2022-01-19 05:02:46,450 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1230271478] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 05:02:46,450 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 05:02:46,450 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-19 05:02:46,451 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1675247252] [2022-01-19 05:02:46,451 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 05:02:46,451 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-19 05:02:46,451 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 05:02:46,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-19 05:02:46,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2022-01-19 05:02:46,453 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 93 out of 131 [2022-01-19 05:02:46,454 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 356 places, 381 transitions, 7227 flow. Second operand has 11 states, 11 states have (on average 94.81818181818181) internal successors, (1043), 11 states have internal predecessors, (1043), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:02:46,454 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 05:02:46,454 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 93 of 131 [2022-01-19 05:02:46,454 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 05:02:47,742 INFO L129 PetriNetUnfolder]: 970/4547 cut-off events. [2022-01-19 05:02:47,743 INFO L130 PetriNetUnfolder]: For 94056/94056 co-relation queries the response was YES. [2022-01-19 05:02:47,782 INFO L84 FinitePrefix]: Finished finitePrefix Result has 25961 conditions, 4547 events. 970/4547 cut-off events. For 94056/94056 co-relation queries the response was YES. Maximal size of possible extension queue 363. Compared 53662 event pairs, 262 based on Foata normal form. 12/4496 useless extension candidates. Maximal degree in co-relation 25844. Up to 825 conditions per place. [2022-01-19 05:02:47,800 INFO L132 encePairwiseOnDemand]: 120/131 looper letters, 285 selfloop transitions, 151 changer transitions 62/557 dead transitions. [2022-01-19 05:02:47,800 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 383 places, 557 transitions, 10401 flow [2022-01-19 05:02:47,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-01-19 05:02:47,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2022-01-19 05:02:47,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 3222 transitions. [2022-01-19 05:02:47,802 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7686068702290076 [2022-01-19 05:02:47,802 INFO L72 ComplementDD]: Start complementDD. Operand 32 states and 3222 transitions. [2022-01-19 05:02:47,802 INFO L73 IsDeterministic]: Start isDeterministic. Operand 32 states and 3222 transitions. [2022-01-19 05:02:47,802 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 05:02:47,802 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 32 states and 3222 transitions. [2022-01-19 05:02:47,804 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 33 states, 32 states have (on average 100.6875) internal successors, (3222), 32 states have internal predecessors, (3222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:02:47,806 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 33 states, 33 states have (on average 131.0) internal successors, (4323), 33 states have internal predecessors, (4323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:02:47,806 INFO L81 ComplementDD]: Finished complementDD. Result has 33 states, 33 states have (on average 131.0) internal successors, (4323), 33 states have internal predecessors, (4323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:02:47,806 INFO L186 Difference]: Start difference. First operand has 356 places, 381 transitions, 7227 flow. Second operand 32 states and 3222 transitions. [2022-01-19 05:02:47,806 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 383 places, 557 transitions, 10401 flow [2022-01-19 05:02:48,376 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 359 places, 557 transitions, 9810 flow, removed 152 selfloop flow, removed 24 redundant places. [2022-01-19 05:02:48,383 INFO L242 Difference]: Finished difference. Result has 366 places, 366 transitions, 6744 flow [2022-01-19 05:02:48,383 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=131, PETRI_DIFFERENCE_MINUEND_FLOW=6768, PETRI_DIFFERENCE_MINUEND_PLACES=328, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=381, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=147, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=232, PETRI_DIFFERENCE_SUBTRAHEND_STATES=32, PETRI_FLOW=6744, PETRI_PLACES=366, PETRI_TRANSITIONS=366} [2022-01-19 05:02:48,383 INFO L334 CegarLoopForPetriNet]: 98 programPoint places, 268 predicate places. [2022-01-19 05:02:48,383 INFO L470 AbstractCegarLoop]: Abstraction has has 366 places, 366 transitions, 6744 flow [2022-01-19 05:02:48,383 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 94.81818181818181) internal successors, (1043), 11 states have internal predecessors, (1043), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:02:48,383 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 05:02:48,384 INFO L254 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 05:02:48,384 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-01-19 05:02:48,384 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-19 05:02:48,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 05:02:48,384 INFO L85 PathProgramCache]: Analyzing trace with hash -63755343, now seen corresponding path program 2 times [2022-01-19 05:02:48,384 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 05:02:48,384 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1154819768] [2022-01-19 05:02:48,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 05:02:48,384 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 05:02:48,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 05:02:48,438 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-01-19 05:02:48,438 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 05:02:48,438 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1154819768] [2022-01-19 05:02:48,438 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1154819768] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 05:02:48,438 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 05:02:48,438 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-19 05:02:48,438 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1336640583] [2022-01-19 05:02:48,438 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 05:02:48,438 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-19 05:02:48,438 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 05:02:48,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-19 05:02:48,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2022-01-19 05:02:48,440 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 93 out of 131 [2022-01-19 05:02:48,440 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 366 places, 366 transitions, 6744 flow. Second operand has 11 states, 11 states have (on average 94.81818181818181) internal successors, (1043), 11 states have internal predecessors, (1043), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:02:48,440 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 05:02:48,440 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 93 of 131 [2022-01-19 05:02:48,441 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 05:02:49,615 INFO L129 PetriNetUnfolder]: 918/4456 cut-off events. [2022-01-19 05:02:49,615 INFO L130 PetriNetUnfolder]: For 90554/90558 co-relation queries the response was YES. [2022-01-19 05:02:49,746 INFO L84 FinitePrefix]: Finished finitePrefix Result has 24623 conditions, 4456 events. 918/4456 cut-off events. For 90554/90558 co-relation queries the response was YES. Maximal size of possible extension queue 352. Compared 52175 event pairs, 250 based on Foata normal form. 16/4383 useless extension candidates. Maximal degree in co-relation 24504. Up to 761 conditions per place. [2022-01-19 05:02:49,763 INFO L132 encePairwiseOnDemand]: 120/131 looper letters, 279 selfloop transitions, 140 changer transitions 58/536 dead transitions. [2022-01-19 05:02:49,763 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 393 places, 536 transitions, 9928 flow [2022-01-19 05:02:49,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-01-19 05:02:49,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2022-01-19 05:02:49,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 3217 transitions. [2022-01-19 05:02:49,765 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7674141221374046 [2022-01-19 05:02:49,765 INFO L72 ComplementDD]: Start complementDD. Operand 32 states and 3217 transitions. [2022-01-19 05:02:49,765 INFO L73 IsDeterministic]: Start isDeterministic. Operand 32 states and 3217 transitions. [2022-01-19 05:02:49,766 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 05:02:49,766 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 32 states and 3217 transitions. [2022-01-19 05:02:49,768 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 33 states, 32 states have (on average 100.53125) internal successors, (3217), 32 states have internal predecessors, (3217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:02:49,769 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 33 states, 33 states have (on average 131.0) internal successors, (4323), 33 states have internal predecessors, (4323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:02:49,769 INFO L81 ComplementDD]: Finished complementDD. Result has 33 states, 33 states have (on average 131.0) internal successors, (4323), 33 states have internal predecessors, (4323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:02:49,770 INFO L186 Difference]: Start difference. First operand has 366 places, 366 transitions, 6744 flow. Second operand 32 states and 3217 transitions. [2022-01-19 05:02:49,770 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 393 places, 536 transitions, 9928 flow [2022-01-19 05:02:50,232 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 360 places, 536 transitions, 9259 flow, removed 140 selfloop flow, removed 33 redundant places. [2022-01-19 05:02:50,238 INFO L242 Difference]: Finished difference. Result has 367 places, 352 transitions, 6253 flow [2022-01-19 05:02:50,239 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=131, PETRI_DIFFERENCE_MINUEND_FLOW=6257, PETRI_DIFFERENCE_MINUEND_PLACES=329, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=366, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=136, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=228, PETRI_DIFFERENCE_SUBTRAHEND_STATES=32, PETRI_FLOW=6253, PETRI_PLACES=367, PETRI_TRANSITIONS=352} [2022-01-19 05:02:50,240 INFO L334 CegarLoopForPetriNet]: 98 programPoint places, 269 predicate places. [2022-01-19 05:02:50,240 INFO L470 AbstractCegarLoop]: Abstraction has has 367 places, 352 transitions, 6253 flow [2022-01-19 05:02:50,240 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 94.81818181818181) internal successors, (1043), 11 states have internal predecessors, (1043), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:02:50,240 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 05:02:50,240 INFO L254 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 05:02:50,240 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-01-19 05:02:50,240 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-19 05:02:50,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 05:02:50,240 INFO L85 PathProgramCache]: Analyzing trace with hash 1316179599, now seen corresponding path program 3 times [2022-01-19 05:02:50,241 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 05:02:50,241 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [630337069] [2022-01-19 05:02:50,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 05:02:50,241 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 05:02:50,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 05:02:50,291 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-01-19 05:02:50,292 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 05:02:50,292 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [630337069] [2022-01-19 05:02:50,292 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [630337069] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 05:02:50,292 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 05:02:50,292 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-19 05:02:50,292 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2049487593] [2022-01-19 05:02:50,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 05:02:50,292 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-19 05:02:50,292 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 05:02:50,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-19 05:02:50,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2022-01-19 05:02:50,294 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 93 out of 131 [2022-01-19 05:02:50,294 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 367 places, 352 transitions, 6253 flow. Second operand has 11 states, 11 states have (on average 94.81818181818181) internal successors, (1043), 11 states have internal predecessors, (1043), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:02:50,294 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 05:02:50,294 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 93 of 131 [2022-01-19 05:02:50,294 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 05:02:51,481 INFO L129 PetriNetUnfolder]: 878/4187 cut-off events. [2022-01-19 05:02:51,482 INFO L130 PetriNetUnfolder]: For 85663/85682 co-relation queries the response was YES. [2022-01-19 05:02:51,518 INFO L84 FinitePrefix]: Finished finitePrefix Result has 23062 conditions, 4187 events. 878/4187 cut-off events. For 85663/85682 co-relation queries the response was YES. Maximal size of possible extension queue 320. Compared 47381 event pairs, 231 based on Foata normal form. 29/4115 useless extension candidates. Maximal degree in co-relation 22943. Up to 656 conditions per place. [2022-01-19 05:02:51,534 INFO L132 encePairwiseOnDemand]: 120/131 looper letters, 267 selfloop transitions, 147 changer transitions 46/519 dead transitions. [2022-01-19 05:02:51,534 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 394 places, 519 transitions, 9269 flow [2022-01-19 05:02:51,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-01-19 05:02:51,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2022-01-19 05:02:51,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 3222 transitions. [2022-01-19 05:02:51,536 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7686068702290076 [2022-01-19 05:02:51,536 INFO L72 ComplementDD]: Start complementDD. Operand 32 states and 3222 transitions. [2022-01-19 05:02:51,536 INFO L73 IsDeterministic]: Start isDeterministic. Operand 32 states and 3222 transitions. [2022-01-19 05:02:51,536 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 05:02:51,536 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 32 states and 3222 transitions. [2022-01-19 05:02:51,538 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 33 states, 32 states have (on average 100.6875) internal successors, (3222), 32 states have internal predecessors, (3222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:02:51,540 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 33 states, 33 states have (on average 131.0) internal successors, (4323), 33 states have internal predecessors, (4323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:02:51,540 INFO L81 ComplementDD]: Finished complementDD. Result has 33 states, 33 states have (on average 131.0) internal successors, (4323), 33 states have internal predecessors, (4323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:02:51,540 INFO L186 Difference]: Start difference. First operand has 367 places, 352 transitions, 6253 flow. Second operand 32 states and 3222 transitions. [2022-01-19 05:02:51,540 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 394 places, 519 transitions, 9269 flow [2022-01-19 05:02:51,975 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 363 places, 519 transitions, 8716 flow, removed 137 selfloop flow, removed 31 redundant places. [2022-01-19 05:02:51,981 INFO L242 Difference]: Finished difference. Result has 370 places, 346 transitions, 5938 flow [2022-01-19 05:02:51,982 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=131, PETRI_DIFFERENCE_MINUEND_FLOW=5833, PETRI_DIFFERENCE_MINUEND_PLACES=332, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=352, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=142, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=208, PETRI_DIFFERENCE_SUBTRAHEND_STATES=32, PETRI_FLOW=5938, PETRI_PLACES=370, PETRI_TRANSITIONS=346} [2022-01-19 05:02:51,982 INFO L334 CegarLoopForPetriNet]: 98 programPoint places, 272 predicate places. [2022-01-19 05:02:51,982 INFO L470 AbstractCegarLoop]: Abstraction has has 370 places, 346 transitions, 5938 flow [2022-01-19 05:02:51,982 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 94.81818181818181) internal successors, (1043), 11 states have internal predecessors, (1043), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:02:51,982 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 05:02:51,983 INFO L254 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 05:02:51,983 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2022-01-19 05:02:51,983 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-19 05:02:51,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 05:02:51,983 INFO L85 PathProgramCache]: Analyzing trace with hash 1063795947, now seen corresponding path program 4 times [2022-01-19 05:02:51,983 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 05:02:51,983 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1016337724] [2022-01-19 05:02:51,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 05:02:51,983 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 05:02:51,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 05:02:52,030 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-01-19 05:02:52,030 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 05:02:52,030 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1016337724] [2022-01-19 05:02:52,030 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1016337724] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-19 05:02:52,030 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [257025088] [2022-01-19 05:02:52,030 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-01-19 05:02:52,030 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-19 05:02:52,030 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-19 05:02:52,031 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-19 05:02:52,032 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-01-19 05:02:52,125 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-01-19 05:02:52,126 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-19 05:02:52,127 INFO L263 TraceCheckSpWp]: Trace formula consists of 224 conjuncts, 10 conjunts are in the unsatisfiable core [2022-01-19 05:02:52,128 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-19 05:02:52,266 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-01-19 05:02:52,266 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-19 05:02:52,414 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-01-19 05:02:52,414 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [257025088] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-19 05:02:52,414 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-19 05:02:52,414 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 22 [2022-01-19 05:02:52,415 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1451499998] [2022-01-19 05:02:52,415 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-19 05:02:52,415 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-01-19 05:02:52,415 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 05:02:52,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-01-19 05:02:52,415 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=378, Unknown=0, NotChecked=0, Total=462 [2022-01-19 05:02:52,416 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 93 out of 131 [2022-01-19 05:02:52,417 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 370 places, 346 transitions, 5938 flow. Second operand has 22 states, 22 states have (on average 95.31818181818181) internal successors, (2097), 22 states have internal predecessors, (2097), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:02:52,417 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 05:02:52,417 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 93 of 131 [2022-01-19 05:02:52,417 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 05:02:53,902 INFO L129 PetriNetUnfolder]: 832/4564 cut-off events. [2022-01-19 05:02:53,902 INFO L130 PetriNetUnfolder]: For 88237/88247 co-relation queries the response was YES. [2022-01-19 05:02:53,949 INFO L84 FinitePrefix]: Finished finitePrefix Result has 22869 conditions, 4564 events. 832/4564 cut-off events. For 88237/88247 co-relation queries the response was YES. Maximal size of possible extension queue 337. Compared 53916 event pairs, 235 based on Foata normal form. 38/4477 useless extension candidates. Maximal degree in co-relation 22750. Up to 620 conditions per place. [2022-01-19 05:02:53,965 INFO L132 encePairwiseOnDemand]: 120/131 looper letters, 298 selfloop transitions, 173 changer transitions 99/629 dead transitions. [2022-01-19 05:02:53,965 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 427 places, 629 transitions, 11187 flow [2022-01-19 05:02:53,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2022-01-19 05:02:53,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62 states. [2022-01-19 05:02:53,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 6134 transitions. [2022-01-19 05:02:53,968 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7552327013050972 [2022-01-19 05:02:53,968 INFO L72 ComplementDD]: Start complementDD. Operand 62 states and 6134 transitions. [2022-01-19 05:02:53,968 INFO L73 IsDeterministic]: Start isDeterministic. Operand 62 states and 6134 transitions. [2022-01-19 05:02:53,968 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 05:02:53,969 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 62 states and 6134 transitions. [2022-01-19 05:02:53,972 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 63 states, 62 states have (on average 98.93548387096774) internal successors, (6134), 62 states have internal predecessors, (6134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:02:53,976 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 63 states, 63 states have (on average 131.0) internal successors, (8253), 63 states have internal predecessors, (8253), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:02:53,976 INFO L81 ComplementDD]: Finished complementDD. Result has 63 states, 63 states have (on average 131.0) internal successors, (8253), 63 states have internal predecessors, (8253), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:02:53,976 INFO L186 Difference]: Start difference. First operand has 370 places, 346 transitions, 5938 flow. Second operand 62 states and 6134 transitions. [2022-01-19 05:02:53,977 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 427 places, 629 transitions, 11187 flow [2022-01-19 05:02:54,381 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 396 places, 629 transitions, 10416 flow, removed 211 selfloop flow, removed 31 redundant places. [2022-01-19 05:02:54,388 INFO L242 Difference]: Finished difference. Result has 417 places, 337 transitions, 5608 flow [2022-01-19 05:02:54,389 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=131, PETRI_DIFFERENCE_MINUEND_FLOW=5466, PETRI_DIFFERENCE_MINUEND_PLACES=335, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=346, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=152, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=190, PETRI_DIFFERENCE_SUBTRAHEND_STATES=62, PETRI_FLOW=5608, PETRI_PLACES=417, PETRI_TRANSITIONS=337} [2022-01-19 05:02:54,389 INFO L334 CegarLoopForPetriNet]: 98 programPoint places, 319 predicate places. [2022-01-19 05:02:54,389 INFO L470 AbstractCegarLoop]: Abstraction has has 417 places, 337 transitions, 5608 flow [2022-01-19 05:02:54,389 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 95.31818181818181) internal successors, (2097), 22 states have internal predecessors, (2097), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:02:54,389 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 05:02:54,389 INFO L254 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 05:02:54,405 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-01-19 05:02:54,591 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable46 [2022-01-19 05:02:54,591 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-19 05:02:54,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 05:02:54,592 INFO L85 PathProgramCache]: Analyzing trace with hash -90853997, now seen corresponding path program 3 times [2022-01-19 05:02:54,592 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 05:02:54,592 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [799003435] [2022-01-19 05:02:54,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 05:02:54,592 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 05:02:54,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 05:02:54,657 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2022-01-19 05:02:54,657 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 05:02:54,657 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [799003435] [2022-01-19 05:02:54,657 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [799003435] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-19 05:02:54,657 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [221378463] [2022-01-19 05:02:54,658 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-01-19 05:02:54,658 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-19 05:02:54,658 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-19 05:02:54,659 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-19 05:02:54,659 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-01-19 05:02:54,744 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2022-01-19 05:02:54,745 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-19 05:02:54,745 INFO L263 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 10 conjunts are in the unsatisfiable core [2022-01-19 05:02:54,746 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-19 05:02:54,871 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2022-01-19 05:02:54,872 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-19 05:02:55,013 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2022-01-19 05:02:55,014 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [221378463] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-19 05:02:55,014 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-19 05:02:55,014 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 22 [2022-01-19 05:02:55,014 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [555253340] [2022-01-19 05:02:55,014 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-19 05:02:55,014 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-01-19 05:02:55,014 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 05:02:55,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-01-19 05:02:55,015 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=378, Unknown=0, NotChecked=0, Total=462 [2022-01-19 05:02:55,016 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 93 out of 131 [2022-01-19 05:02:55,016 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 417 places, 337 transitions, 5608 flow. Second operand has 22 states, 22 states have (on average 95.22727272727273) internal successors, (2095), 22 states have internal predecessors, (2095), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:02:55,016 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 05:02:55,017 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 93 of 131 [2022-01-19 05:02:55,017 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 05:02:56,426 INFO L129 PetriNetUnfolder]: 723/3924 cut-off events. [2022-01-19 05:02:56,426 INFO L130 PetriNetUnfolder]: For 89873/89873 co-relation queries the response was YES. [2022-01-19 05:02:56,475 INFO L84 FinitePrefix]: Finished finitePrefix Result has 21156 conditions, 3924 events. 723/3924 cut-off events. For 89873/89873 co-relation queries the response was YES. Maximal size of possible extension queue 292. Compared 44850 event pairs, 223 based on Foata normal form. 32/3852 useless extension candidates. Maximal degree in co-relation 21022. Up to 512 conditions per place. [2022-01-19 05:02:56,490 INFO L132 encePairwiseOnDemand]: 120/131 looper letters, 278 selfloop transitions, 142 changer transitions 117/596 dead transitions. [2022-01-19 05:02:56,490 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 465 places, 596 transitions, 11068 flow [2022-01-19 05:02:56,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2022-01-19 05:02:56,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62 states. [2022-01-19 05:02:56,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 6112 transitions. [2022-01-19 05:02:56,493 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7525240088648116 [2022-01-19 05:02:56,493 INFO L72 ComplementDD]: Start complementDD. Operand 62 states and 6112 transitions. [2022-01-19 05:02:56,493 INFO L73 IsDeterministic]: Start isDeterministic. Operand 62 states and 6112 transitions. [2022-01-19 05:02:56,494 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 05:02:56,494 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 62 states and 6112 transitions. [2022-01-19 05:02:56,497 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 63 states, 62 states have (on average 98.58064516129032) internal successors, (6112), 62 states have internal predecessors, (6112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:02:56,500 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 63 states, 63 states have (on average 131.0) internal successors, (8253), 63 states have internal predecessors, (8253), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:02:56,501 INFO L81 ComplementDD]: Finished complementDD. Result has 63 states, 63 states have (on average 131.0) internal successors, (8253), 63 states have internal predecessors, (8253), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:02:56,501 INFO L186 Difference]: Start difference. First operand has 417 places, 337 transitions, 5608 flow. Second operand 62 states and 6112 transitions. [2022-01-19 05:02:56,501 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 465 places, 596 transitions, 11068 flow [2022-01-19 05:02:57,049 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 420 places, 596 transitions, 9657 flow, removed 488 selfloop flow, removed 45 redundant places. [2022-01-19 05:02:57,055 INFO L242 Difference]: Finished difference. Result has 441 places, 312 transitions, 4668 flow [2022-01-19 05:02:57,055 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=131, PETRI_DIFFERENCE_MINUEND_FLOW=4892, PETRI_DIFFERENCE_MINUEND_PLACES=359, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=337, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=128, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=206, PETRI_DIFFERENCE_SUBTRAHEND_STATES=62, PETRI_FLOW=4668, PETRI_PLACES=441, PETRI_TRANSITIONS=312} [2022-01-19 05:02:57,056 INFO L334 CegarLoopForPetriNet]: 98 programPoint places, 343 predicate places. [2022-01-19 05:02:57,056 INFO L470 AbstractCegarLoop]: Abstraction has has 441 places, 312 transitions, 4668 flow [2022-01-19 05:02:57,056 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 95.22727272727273) internal successors, (2095), 22 states have internal predecessors, (2095), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:02:57,056 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 05:02:57,056 INFO L254 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 05:02:57,072 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-01-19 05:02:57,256 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable47 [2022-01-19 05:02:57,257 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-19 05:02:57,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 05:02:57,257 INFO L85 PathProgramCache]: Analyzing trace with hash -1984749891, now seen corresponding path program 4 times [2022-01-19 05:02:57,257 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 05:02:57,257 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [865175797] [2022-01-19 05:02:57,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 05:02:57,257 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 05:02:57,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 05:02:57,309 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-01-19 05:02:57,309 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 05:02:57,309 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [865175797] [2022-01-19 05:02:57,309 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [865175797] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 05:02:57,310 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 05:02:57,310 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-19 05:02:57,310 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1025104430] [2022-01-19 05:02:57,310 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 05:02:57,310 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-19 05:02:57,310 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 05:02:57,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-19 05:02:57,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2022-01-19 05:02:57,311 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 93 out of 131 [2022-01-19 05:02:57,311 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 441 places, 312 transitions, 4668 flow. Second operand has 11 states, 11 states have (on average 94.81818181818181) internal successors, (1043), 11 states have internal predecessors, (1043), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:02:57,311 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 05:02:57,311 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 93 of 131 [2022-01-19 05:02:57,311 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 05:02:58,199 INFO L129 PetriNetUnfolder]: 602/2939 cut-off events. [2022-01-19 05:02:58,200 INFO L130 PetriNetUnfolder]: For 76624/76628 co-relation queries the response was YES. [2022-01-19 05:02:58,232 INFO L84 FinitePrefix]: Finished finitePrefix Result has 16831 conditions, 2939 events. 602/2939 cut-off events. For 76624/76628 co-relation queries the response was YES. Maximal size of possible extension queue 217. Compared 30576 event pairs, 206 based on Foata normal form. 16/2870 useless extension candidates. Maximal degree in co-relation 16692. Up to 372 conditions per place. [2022-01-19 05:02:58,242 INFO L132 encePairwiseOnDemand]: 120/131 looper letters, 247 selfloop transitions, 99 changer transitions 44/449 dead transitions. [2022-01-19 05:02:58,243 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 458 places, 449 transitions, 7542 flow [2022-01-19 05:02:58,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-01-19 05:02:58,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2022-01-19 05:02:58,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 3104 transitions. [2022-01-19 05:02:58,244 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.764343757695149 [2022-01-19 05:02:58,244 INFO L72 ComplementDD]: Start complementDD. Operand 31 states and 3104 transitions. [2022-01-19 05:02:58,244 INFO L73 IsDeterministic]: Start isDeterministic. Operand 31 states and 3104 transitions. [2022-01-19 05:02:58,245 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 05:02:58,245 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 31 states and 3104 transitions. [2022-01-19 05:02:58,247 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 32 states, 31 states have (on average 100.12903225806451) internal successors, (3104), 31 states have internal predecessors, (3104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:02:58,248 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 32 states, 32 states have (on average 131.0) internal successors, (4192), 32 states have internal predecessors, (4192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:02:58,249 INFO L81 ComplementDD]: Finished complementDD. Result has 32 states, 32 states have (on average 131.0) internal successors, (4192), 32 states have internal predecessors, (4192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:02:58,249 INFO L186 Difference]: Start difference. First operand has 441 places, 312 transitions, 4668 flow. Second operand 31 states and 3104 transitions. [2022-01-19 05:02:58,249 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 458 places, 449 transitions, 7542 flow [2022-01-19 05:02:58,629 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 399 places, 449 transitions, 6460 flow, removed 326 selfloop flow, removed 59 redundant places. [2022-01-19 05:02:58,634 INFO L242 Difference]: Finished difference. Result has 406 places, 299 transitions, 3861 flow [2022-01-19 05:02:58,634 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=131, PETRI_DIFFERENCE_MINUEND_FLOW=3909, PETRI_DIFFERENCE_MINUEND_PLACES=369, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=312, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=97, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=214, PETRI_DIFFERENCE_SUBTRAHEND_STATES=31, PETRI_FLOW=3861, PETRI_PLACES=406, PETRI_TRANSITIONS=299} [2022-01-19 05:02:58,635 INFO L334 CegarLoopForPetriNet]: 98 programPoint places, 308 predicate places. [2022-01-19 05:02:58,635 INFO L470 AbstractCegarLoop]: Abstraction has has 406 places, 299 transitions, 3861 flow [2022-01-19 05:02:58,635 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 94.81818181818181) internal successors, (1043), 11 states have internal predecessors, (1043), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:02:58,635 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 05:02:58,635 INFO L254 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 05:02:58,635 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2022-01-19 05:02:58,635 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-19 05:02:58,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 05:02:58,636 INFO L85 PathProgramCache]: Analyzing trace with hash -1679133285, now seen corresponding path program 1 times [2022-01-19 05:02:58,636 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 05:02:58,636 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [613589638] [2022-01-19 05:02:58,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 05:02:58,636 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 05:02:58,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 05:02:58,687 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-01-19 05:02:58,688 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 05:02:58,688 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [613589638] [2022-01-19 05:02:58,688 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [613589638] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-19 05:02:58,688 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1913080626] [2022-01-19 05:02:58,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 05:02:58,688 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-19 05:02:58,688 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-19 05:02:58,689 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-19 05:02:58,690 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-01-19 05:02:58,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 05:02:58,782 INFO L263 TraceCheckSpWp]: Trace formula consists of 224 conjuncts, 10 conjunts are in the unsatisfiable core [2022-01-19 05:02:58,783 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-19 05:02:58,894 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-01-19 05:02:58,895 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-19 05:02:59,039 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-01-19 05:02:59,039 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1913080626] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-19 05:02:59,039 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-19 05:02:59,039 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 22 [2022-01-19 05:02:59,039 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1995912399] [2022-01-19 05:02:59,039 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-19 05:02:59,040 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-01-19 05:02:59,040 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 05:02:59,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-01-19 05:02:59,040 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=378, Unknown=0, NotChecked=0, Total=462 [2022-01-19 05:02:59,041 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 93 out of 131 [2022-01-19 05:02:59,042 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 406 places, 299 transitions, 3861 flow. Second operand has 22 states, 22 states have (on average 95.13636363636364) internal successors, (2093), 22 states have internal predecessors, (2093), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:02:59,042 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 05:02:59,042 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 93 of 131 [2022-01-19 05:02:59,042 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 05:03:00,225 INFO L129 PetriNetUnfolder]: 554/2603 cut-off events. [2022-01-19 05:03:00,225 INFO L130 PetriNetUnfolder]: For 61521/61521 co-relation queries the response was YES. [2022-01-19 05:03:00,253 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13838 conditions, 2603 events. 554/2603 cut-off events. For 61521/61521 co-relation queries the response was YES. Maximal size of possible extension queue 202. Compared 26821 event pairs, 58 based on Foata normal form. 60/2616 useless extension candidates. Maximal degree in co-relation 13708. Up to 282 conditions per place. [2022-01-19 05:03:00,258 INFO L132 encePairwiseOnDemand]: 120/131 looper letters, 214 selfloop transitions, 62 changer transitions 229/564 dead transitions. [2022-01-19 05:03:00,259 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 468 places, 564 transitions, 9657 flow [2022-01-19 05:03:00,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2022-01-19 05:03:00,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2022-01-19 05:03:00,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 6646 transitions. [2022-01-19 05:03:00,262 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7460709474629547 [2022-01-19 05:03:00,262 INFO L72 ComplementDD]: Start complementDD. Operand 68 states and 6646 transitions. [2022-01-19 05:03:00,262 INFO L73 IsDeterministic]: Start isDeterministic. Operand 68 states and 6646 transitions. [2022-01-19 05:03:00,262 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 05:03:00,262 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 68 states and 6646 transitions. [2022-01-19 05:03:00,266 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 69 states, 68 states have (on average 97.73529411764706) internal successors, (6646), 68 states have internal predecessors, (6646), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:03:00,270 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 69 states, 69 states have (on average 131.0) internal successors, (9039), 69 states have internal predecessors, (9039), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:03:00,270 INFO L81 ComplementDD]: Finished complementDD. Result has 69 states, 69 states have (on average 131.0) internal successors, (9039), 69 states have internal predecessors, (9039), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:03:00,270 INFO L186 Difference]: Start difference. First operand has 406 places, 299 transitions, 3861 flow. Second operand 68 states and 6646 transitions. [2022-01-19 05:03:00,270 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 468 places, 564 transitions, 9657 flow [2022-01-19 05:03:00,610 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 437 places, 564 transitions, 9030 flow, removed 182 selfloop flow, removed 31 redundant places. [2022-01-19 05:03:00,615 INFO L242 Difference]: Finished difference. Result has 472 places, 204 transitions, 2194 flow [2022-01-19 05:03:00,616 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=131, PETRI_DIFFERENCE_MINUEND_FLOW=3468, PETRI_DIFFERENCE_MINUEND_PLACES=370, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=299, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=53, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=243, PETRI_DIFFERENCE_SUBTRAHEND_STATES=68, PETRI_FLOW=2194, PETRI_PLACES=472, PETRI_TRANSITIONS=204} [2022-01-19 05:03:00,616 INFO L334 CegarLoopForPetriNet]: 98 programPoint places, 374 predicate places. [2022-01-19 05:03:00,616 INFO L470 AbstractCegarLoop]: Abstraction has has 472 places, 204 transitions, 2194 flow [2022-01-19 05:03:00,616 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 95.13636363636364) internal successors, (2093), 22 states have internal predecessors, (2093), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:03:00,616 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 05:03:00,617 INFO L254 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 05:03:00,632 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-01-19 05:03:00,832 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable49 [2022-01-19 05:03:00,833 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-19 05:03:00,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 05:03:00,833 INFO L85 PathProgramCache]: Analyzing trace with hash -516906461, now seen corresponding path program 2 times [2022-01-19 05:03:00,833 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 05:03:00,833 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [549781458] [2022-01-19 05:03:00,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 05:03:00,833 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 05:03:00,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 05:03:00,900 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-01-19 05:03:00,900 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 05:03:00,900 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [549781458] [2022-01-19 05:03:00,900 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [549781458] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 05:03:00,900 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 05:03:00,900 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-19 05:03:00,900 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1230401801] [2022-01-19 05:03:00,900 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 05:03:00,901 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-19 05:03:00,901 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 05:03:00,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-19 05:03:00,902 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2022-01-19 05:03:00,902 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 93 out of 131 [2022-01-19 05:03:00,902 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 472 places, 204 transitions, 2194 flow. Second operand has 11 states, 11 states have (on average 94.81818181818181) internal successors, (1043), 11 states have internal predecessors, (1043), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:03:00,903 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 05:03:00,903 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 93 of 131 [2022-01-19 05:03:00,903 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 05:03:01,429 INFO L129 PetriNetUnfolder]: 296/1523 cut-off events. [2022-01-19 05:03:01,429 INFO L130 PetriNetUnfolder]: For 33807/33807 co-relation queries the response was YES. [2022-01-19 05:03:01,444 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7212 conditions, 1523 events. 296/1523 cut-off events. For 33807/33807 co-relation queries the response was YES. Maximal size of possible extension queue 111. Compared 13271 event pairs, 134 based on Foata normal form. 12/1476 useless extension candidates. Maximal degree in co-relation 7054. Up to 198 conditions per place. [2022-01-19 05:03:01,448 INFO L132 encePairwiseOnDemand]: 120/131 looper letters, 180 selfloop transitions, 28 changer transitions 45/312 dead transitions. [2022-01-19 05:03:01,448 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 463 places, 312 transitions, 4624 flow [2022-01-19 05:03:01,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-01-19 05:03:01,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2022-01-19 05:03:01,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 2783 transitions. [2022-01-19 05:03:01,450 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7587241003271538 [2022-01-19 05:03:01,450 INFO L72 ComplementDD]: Start complementDD. Operand 28 states and 2783 transitions. [2022-01-19 05:03:01,450 INFO L73 IsDeterministic]: Start isDeterministic. Operand 28 states and 2783 transitions. [2022-01-19 05:03:01,451 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 05:03:01,451 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 28 states and 2783 transitions. [2022-01-19 05:03:01,452 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 29 states, 28 states have (on average 99.39285714285714) internal successors, (2783), 28 states have internal predecessors, (2783), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:03:01,454 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 29 states, 29 states have (on average 131.0) internal successors, (3799), 29 states have internal predecessors, (3799), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:03:01,454 INFO L81 ComplementDD]: Finished complementDD. Result has 29 states, 29 states have (on average 131.0) internal successors, (3799), 29 states have internal predecessors, (3799), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:03:01,454 INFO L186 Difference]: Start difference. First operand has 472 places, 204 transitions, 2194 flow. Second operand 28 states and 2783 transitions. [2022-01-19 05:03:01,454 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 463 places, 312 transitions, 4624 flow [2022-01-19 05:03:01,603 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 376 places, 312 transitions, 3626 flow, removed 402 selfloop flow, removed 87 redundant places. [2022-01-19 05:03:01,606 INFO L242 Difference]: Finished difference. Result has 383 places, 181 transitions, 1291 flow [2022-01-19 05:03:01,607 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=131, PETRI_DIFFERENCE_MINUEND_FLOW=1566, PETRI_DIFFERENCE_MINUEND_PLACES=349, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=204, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=27, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=176, PETRI_DIFFERENCE_SUBTRAHEND_STATES=28, PETRI_FLOW=1291, PETRI_PLACES=383, PETRI_TRANSITIONS=181} [2022-01-19 05:03:01,607 INFO L334 CegarLoopForPetriNet]: 98 programPoint places, 285 predicate places. [2022-01-19 05:03:01,607 INFO L470 AbstractCegarLoop]: Abstraction has has 383 places, 181 transitions, 1291 flow [2022-01-19 05:03:01,607 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 94.81818181818181) internal successors, (1043), 11 states have internal predecessors, (1043), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:03:01,607 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 05:03:01,607 INFO L254 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 05:03:01,607 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2022-01-19 05:03:01,607 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-19 05:03:01,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 05:03:01,608 INFO L85 PathProgramCache]: Analyzing trace with hash 1720917393, now seen corresponding path program 1 times [2022-01-19 05:03:01,608 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 05:03:01,608 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2108657032] [2022-01-19 05:03:01,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 05:03:01,608 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 05:03:01,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 05:03:01,677 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 29 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-01-19 05:03:01,678 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 05:03:01,678 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2108657032] [2022-01-19 05:03:01,678 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2108657032] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-19 05:03:01,678 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [41747627] [2022-01-19 05:03:01,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 05:03:01,678 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-19 05:03:01,678 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-19 05:03:01,679 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-19 05:03:01,680 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-01-19 05:03:01,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 05:03:01,777 INFO L263 TraceCheckSpWp]: Trace formula consists of 233 conjuncts, 12 conjunts are in the unsatisfiable core [2022-01-19 05:03:01,778 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-19 05:03:01,898 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 29 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-01-19 05:03:01,899 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-19 05:03:02,079 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 29 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-01-19 05:03:02,079 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [41747627] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-19 05:03:02,079 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-19 05:03:02,079 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 26 [2022-01-19 05:03:02,079 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [662366261] [2022-01-19 05:03:02,079 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-19 05:03:02,079 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-19 05:03:02,079 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 05:03:02,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-19 05:03:02,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=112, Invalid=538, Unknown=0, NotChecked=0, Total=650 [2022-01-19 05:03:02,081 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 92 out of 131 [2022-01-19 05:03:02,082 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 383 places, 181 transitions, 1291 flow. Second operand has 26 states, 26 states have (on average 94.0) internal successors, (2444), 26 states have internal predecessors, (2444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:03:02,082 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 05:03:02,082 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 92 of 131 [2022-01-19 05:03:02,082 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 05:03:04,109 INFO L129 PetriNetUnfolder]: 400/1452 cut-off events. [2022-01-19 05:03:04,109 INFO L130 PetriNetUnfolder]: For 22655/22655 co-relation queries the response was YES. [2022-01-19 05:03:04,122 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5697 conditions, 1452 events. 400/1452 cut-off events. For 22655/22655 co-relation queries the response was YES. Maximal size of possible extension queue 96. Compared 11611 event pairs, 37 based on Foata normal form. 12/1422 useless extension candidates. Maximal degree in co-relation 5565. Up to 89 conditions per place. [2022-01-19 05:03:04,125 INFO L132 encePairwiseOnDemand]: 119/131 looper letters, 175 selfloop transitions, 55 changer transitions 164/452 dead transitions. [2022-01-19 05:03:04,125 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 517 places, 452 transitions, 5280 flow [2022-01-19 05:03:04,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 143 states. [2022-01-19 05:03:04,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 143 states. [2022-01-19 05:03:04,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 13562 transitions. [2022-01-19 05:03:04,131 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7239630598409225 [2022-01-19 05:03:04,131 INFO L72 ComplementDD]: Start complementDD. Operand 143 states and 13562 transitions. [2022-01-19 05:03:04,131 INFO L73 IsDeterministic]: Start isDeterministic. Operand 143 states and 13562 transitions. [2022-01-19 05:03:04,132 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 05:03:04,133 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 143 states and 13562 transitions. [2022-01-19 05:03:04,140 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 144 states, 143 states have (on average 94.83916083916084) internal successors, (13562), 143 states have internal predecessors, (13562), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:03:04,149 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 144 states, 144 states have (on average 131.0) internal successors, (18864), 144 states have internal predecessors, (18864), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:03:04,151 INFO L81 ComplementDD]: Finished complementDD. Result has 144 states, 144 states have (on average 131.0) internal successors, (18864), 144 states have internal predecessors, (18864), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:03:04,151 INFO L186 Difference]: Start difference. First operand has 383 places, 181 transitions, 1291 flow. Second operand 143 states and 13562 transitions. [2022-01-19 05:03:04,151 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 517 places, 452 transitions, 5280 flow [2022-01-19 05:03:04,246 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 485 places, 452 transitions, 4933 flow, removed 140 selfloop flow, removed 32 redundant places. [2022-01-19 05:03:04,250 INFO L242 Difference]: Finished difference. Result has 533 places, 139 transitions, 1062 flow [2022-01-19 05:03:04,250 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=131, PETRI_DIFFERENCE_MINUEND_FLOW=1144, PETRI_DIFFERENCE_MINUEND_PLACES=343, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=181, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=55, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=126, PETRI_DIFFERENCE_SUBTRAHEND_STATES=143, PETRI_FLOW=1062, PETRI_PLACES=533, PETRI_TRANSITIONS=139} [2022-01-19 05:03:04,250 INFO L334 CegarLoopForPetriNet]: 98 programPoint places, 435 predicate places. [2022-01-19 05:03:04,250 INFO L470 AbstractCegarLoop]: Abstraction has has 533 places, 139 transitions, 1062 flow [2022-01-19 05:03:04,251 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 94.0) internal successors, (2444), 26 states have internal predecessors, (2444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:03:04,251 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 05:03:04,251 INFO L254 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 05:03:04,266 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-01-19 05:03:04,466 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable51 [2022-01-19 05:03:04,466 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-19 05:03:04,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 05:03:04,467 INFO L85 PathProgramCache]: Analyzing trace with hash -1917817425, now seen corresponding path program 2 times [2022-01-19 05:03:04,467 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 05:03:04,467 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [587098738] [2022-01-19 05:03:04,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 05:03:04,467 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 05:03:04,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 05:03:04,549 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-01-19 05:03:04,549 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 05:03:04,549 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [587098738] [2022-01-19 05:03:04,550 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [587098738] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 05:03:04,550 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 05:03:04,550 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-01-19 05:03:04,550 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1242863642] [2022-01-19 05:03:04,550 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 05:03:04,550 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-01-19 05:03:04,550 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 05:03:04,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-01-19 05:03:04,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2022-01-19 05:03:04,551 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 92 out of 131 [2022-01-19 05:03:04,551 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 533 places, 139 transitions, 1062 flow. Second operand has 13 states, 13 states have (on average 93.76923076923077) internal successors, (1219), 13 states have internal predecessors, (1219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:03:04,551 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 05:03:04,551 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 92 of 131 [2022-01-19 05:03:04,552 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 05:03:05,071 INFO L129 PetriNetUnfolder]: 313/1472 cut-off events. [2022-01-19 05:03:05,071 INFO L130 PetriNetUnfolder]: For 21179/21179 co-relation queries the response was YES. [2022-01-19 05:03:05,085 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4824 conditions, 1472 events. 313/1472 cut-off events. For 21179/21179 co-relation queries the response was YES. Maximal size of possible extension queue 85. Compared 11871 event pairs, 74 based on Foata normal form. 1/1403 useless extension candidates. Maximal degree in co-relation 4654. Up to 81 conditions per place. [2022-01-19 05:03:05,089 INFO L132 encePairwiseOnDemand]: 119/131 looper letters, 136 selfloop transitions, 26 changer transitions 30/250 dead transitions. [2022-01-19 05:03:05,089 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 424 places, 250 transitions, 3003 flow [2022-01-19 05:03:05,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-01-19 05:03:05,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2022-01-19 05:03:05,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 3317 transitions. [2022-01-19 05:03:05,091 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7447238437359677 [2022-01-19 05:03:05,091 INFO L72 ComplementDD]: Start complementDD. Operand 34 states and 3317 transitions. [2022-01-19 05:03:05,091 INFO L73 IsDeterministic]: Start isDeterministic. Operand 34 states and 3317 transitions. [2022-01-19 05:03:05,092 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 05:03:05,092 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 34 states and 3317 transitions. [2022-01-19 05:03:05,093 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 35 states, 34 states have (on average 97.55882352941177) internal successors, (3317), 34 states have internal predecessors, (3317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:03:05,095 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 35 states, 35 states have (on average 131.0) internal successors, (4585), 35 states have internal predecessors, (4585), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:03:05,095 INFO L81 ComplementDD]: Finished complementDD. Result has 35 states, 35 states have (on average 131.0) internal successors, (4585), 35 states have internal predecessors, (4585), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:03:05,096 INFO L186 Difference]: Start difference. First operand has 533 places, 139 transitions, 1062 flow. Second operand 34 states and 3317 transitions. [2022-01-19 05:03:05,096 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 424 places, 250 transitions, 3003 flow [2022-01-19 05:03:05,134 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 294 places, 250 transitions, 1980 flow, removed 436 selfloop flow, removed 130 redundant places. [2022-01-19 05:03:05,136 INFO L242 Difference]: Finished difference. Result has 298 places, 132 transitions, 782 flow [2022-01-19 05:03:05,136 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=131, PETRI_DIFFERENCE_MINUEND_FLOW=773, PETRI_DIFFERENCE_MINUEND_PLACES=261, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=139, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=113, PETRI_DIFFERENCE_SUBTRAHEND_STATES=34, PETRI_FLOW=782, PETRI_PLACES=298, PETRI_TRANSITIONS=132} [2022-01-19 05:03:05,136 INFO L334 CegarLoopForPetriNet]: 98 programPoint places, 200 predicate places. [2022-01-19 05:03:05,136 INFO L470 AbstractCegarLoop]: Abstraction has has 298 places, 132 transitions, 782 flow [2022-01-19 05:03:05,136 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 93.76923076923077) internal successors, (1219), 13 states have internal predecessors, (1219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:03:05,136 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 05:03:05,136 INFO L254 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 05:03:05,137 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2022-01-19 05:03:05,137 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-19 05:03:05,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 05:03:05,137 INFO L85 PathProgramCache]: Analyzing trace with hash -502399603, now seen corresponding path program 3 times [2022-01-19 05:03:05,137 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 05:03:05,137 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [189619182] [2022-01-19 05:03:05,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 05:03:05,137 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 05:03:05,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 05:03:05,219 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-01-19 05:03:05,219 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 05:03:05,219 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [189619182] [2022-01-19 05:03:05,219 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [189619182] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-19 05:03:05,219 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [359967226] [2022-01-19 05:03:05,219 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-01-19 05:03:05,219 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-19 05:03:05,220 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-19 05:03:05,220 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-19 05:03:05,221 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-01-19 05:03:05,326 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-01-19 05:03:05,327 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-19 05:03:05,327 INFO L263 TraceCheckSpWp]: Trace formula consists of 207 conjuncts, 12 conjunts are in the unsatisfiable core [2022-01-19 05:03:05,328 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-19 05:03:05,474 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-01-19 05:03:05,474 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-19 05:03:05,679 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-01-19 05:03:05,679 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [359967226] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-19 05:03:05,679 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-19 05:03:05,679 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 26 [2022-01-19 05:03:05,679 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [710473534] [2022-01-19 05:03:05,679 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-19 05:03:05,680 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-19 05:03:05,680 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 05:03:05,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-19 05:03:05,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=112, Invalid=538, Unknown=0, NotChecked=0, Total=650 [2022-01-19 05:03:05,681 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 92 out of 131 [2022-01-19 05:03:05,682 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 298 places, 132 transitions, 782 flow. Second operand has 26 states, 26 states have (on average 94.07692307692308) internal successors, (2446), 26 states have internal predecessors, (2446), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:03:05,682 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 05:03:05,682 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 92 of 131 [2022-01-19 05:03:05,682 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 05:03:06,758 INFO L129 PetriNetUnfolder]: 255/1053 cut-off events. [2022-01-19 05:03:06,758 INFO L130 PetriNetUnfolder]: For 5127/5127 co-relation queries the response was YES. [2022-01-19 05:03:06,765 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3179 conditions, 1053 events. 255/1053 cut-off events. For 5127/5127 co-relation queries the response was YES. Maximal size of possible extension queue 67. Compared 7507 event pairs, 40 based on Foata normal form. 5/1017 useless extension candidates. Maximal degree in co-relation 3084. Up to 81 conditions per place. [2022-01-19 05:03:06,767 INFO L132 encePairwiseOnDemand]: 119/131 looper letters, 95 selfloop transitions, 33 changer transitions 81/267 dead transitions. [2022-01-19 05:03:06,767 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 352 places, 267 transitions, 2270 flow [2022-01-19 05:03:06,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 74 states. [2022-01-19 05:03:06,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2022-01-19 05:03:06,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 7022 transitions. [2022-01-19 05:03:06,770 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7243655869610068 [2022-01-19 05:03:06,770 INFO L72 ComplementDD]: Start complementDD. Operand 74 states and 7022 transitions. [2022-01-19 05:03:06,771 INFO L73 IsDeterministic]: Start isDeterministic. Operand 74 states and 7022 transitions. [2022-01-19 05:03:06,771 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 05:03:06,771 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 74 states and 7022 transitions. [2022-01-19 05:03:06,775 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 75 states, 74 states have (on average 94.89189189189189) internal successors, (7022), 74 states have internal predecessors, (7022), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:03:06,779 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 75 states, 75 states have (on average 131.0) internal successors, (9825), 75 states have internal predecessors, (9825), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:03:06,780 INFO L81 ComplementDD]: Finished complementDD. Result has 75 states, 75 states have (on average 131.0) internal successors, (9825), 75 states have internal predecessors, (9825), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:03:06,780 INFO L186 Difference]: Start difference. First operand has 298 places, 132 transitions, 782 flow. Second operand 74 states and 7022 transitions. [2022-01-19 05:03:06,780 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 352 places, 267 transitions, 2270 flow [2022-01-19 05:03:06,796 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 324 places, 267 transitions, 2077 flow, removed 75 selfloop flow, removed 28 redundant places. [2022-01-19 05:03:06,798 INFO L242 Difference]: Finished difference. Result has 341 places, 109 transitions, 627 flow [2022-01-19 05:03:06,799 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=131, PETRI_DIFFERENCE_MINUEND_FLOW=717, PETRI_DIFFERENCE_MINUEND_PLACES=251, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=132, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=33, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=99, PETRI_DIFFERENCE_SUBTRAHEND_STATES=74, PETRI_FLOW=627, PETRI_PLACES=341, PETRI_TRANSITIONS=109} [2022-01-19 05:03:06,799 INFO L334 CegarLoopForPetriNet]: 98 programPoint places, 243 predicate places. [2022-01-19 05:03:06,799 INFO L470 AbstractCegarLoop]: Abstraction has has 341 places, 109 transitions, 627 flow [2022-01-19 05:03:06,799 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 94.07692307692308) internal successors, (2446), 26 states have internal predecessors, (2446), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:03:06,799 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 05:03:06,799 INFO L254 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 05:03:06,815 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-01-19 05:03:07,000 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable53 [2022-01-19 05:03:07,000 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-19 05:03:07,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 05:03:07,001 INFO L85 PathProgramCache]: Analyzing trace with hash 1503156953, now seen corresponding path program 4 times [2022-01-19 05:03:07,001 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 05:03:07,001 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [786776209] [2022-01-19 05:03:07,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 05:03:07,001 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 05:03:07,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 05:03:07,066 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-01-19 05:03:07,067 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 05:03:07,067 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [786776209] [2022-01-19 05:03:07,067 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [786776209] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-19 05:03:07,067 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [979310747] [2022-01-19 05:03:07,067 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-01-19 05:03:07,067 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-19 05:03:07,067 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-19 05:03:07,068 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-19 05:03:07,069 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-01-19 05:03:07,164 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-01-19 05:03:07,164 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-19 05:03:07,165 INFO L263 TraceCheckSpWp]: Trace formula consists of 233 conjuncts, 12 conjunts are in the unsatisfiable core [2022-01-19 05:03:07,166 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-19 05:03:07,308 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-01-19 05:03:07,308 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-19 05:03:07,508 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-01-19 05:03:07,509 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [979310747] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-19 05:03:07,509 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-19 05:03:07,509 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 26 [2022-01-19 05:03:07,509 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2122624133] [2022-01-19 05:03:07,509 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-19 05:03:07,509 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-19 05:03:07,509 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 05:03:07,509 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-19 05:03:07,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=112, Invalid=538, Unknown=0, NotChecked=0, Total=650 [2022-01-19 05:03:07,511 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 92 out of 131 [2022-01-19 05:03:07,526 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 341 places, 109 transitions, 627 flow. Second operand has 26 states, 26 states have (on average 94.23076923076923) internal successors, (2450), 26 states have internal predecessors, (2450), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:03:07,526 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 05:03:07,526 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 92 of 131 [2022-01-19 05:03:07,526 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 05:03:08,104 INFO L129 PetriNetUnfolder]: 170/637 cut-off events. [2022-01-19 05:03:08,104 INFO L130 PetriNetUnfolder]: For 2987/2987 co-relation queries the response was YES. [2022-01-19 05:03:08,108 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2073 conditions, 637 events. 170/637 cut-off events. For 2987/2987 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 3495 event pairs, 34 based on Foata normal form. 4/617 useless extension candidates. Maximal degree in co-relation 1997. Up to 67 conditions per place. [2022-01-19 05:03:08,110 INFO L132 encePairwiseOnDemand]: 119/131 looper letters, 49 selfloop transitions, 13 changer transitions 62/182 dead transitions. [2022-01-19 05:03:08,110 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 312 places, 182 transitions, 1463 flow [2022-01-19 05:03:08,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2022-01-19 05:03:08,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2022-01-19 05:03:08,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 4452 transitions. [2022-01-19 05:03:08,112 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7230794217963293 [2022-01-19 05:03:08,112 INFO L72 ComplementDD]: Start complementDD. Operand 47 states and 4452 transitions. [2022-01-19 05:03:08,112 INFO L73 IsDeterministic]: Start isDeterministic. Operand 47 states and 4452 transitions. [2022-01-19 05:03:08,113 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 05:03:08,113 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 47 states and 4452 transitions. [2022-01-19 05:03:08,115 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 48 states, 47 states have (on average 94.72340425531915) internal successors, (4452), 47 states have internal predecessors, (4452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:03:08,117 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 48 states, 48 states have (on average 131.0) internal successors, (6288), 48 states have internal predecessors, (6288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:03:08,118 INFO L81 ComplementDD]: Finished complementDD. Result has 48 states, 48 states have (on average 131.0) internal successors, (6288), 48 states have internal predecessors, (6288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:03:08,118 INFO L186 Difference]: Start difference. First operand has 341 places, 109 transitions, 627 flow. Second operand 47 states and 4452 transitions. [2022-01-19 05:03:08,118 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 312 places, 182 transitions, 1463 flow [2022-01-19 05:03:08,126 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 244 places, 182 transitions, 1099 flow, removed 130 selfloop flow, removed 68 redundant places. [2022-01-19 05:03:08,127 INFO L242 Difference]: Finished difference. Result has 260 places, 89 transitions, 385 flow [2022-01-19 05:03:08,128 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=131, PETRI_DIFFERENCE_MINUEND_FLOW=469, PETRI_DIFFERENCE_MINUEND_PLACES=198, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=109, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=96, PETRI_DIFFERENCE_SUBTRAHEND_STATES=47, PETRI_FLOW=385, PETRI_PLACES=260, PETRI_TRANSITIONS=89} [2022-01-19 05:03:08,128 INFO L334 CegarLoopForPetriNet]: 98 programPoint places, 162 predicate places. [2022-01-19 05:03:08,128 INFO L470 AbstractCegarLoop]: Abstraction has has 260 places, 89 transitions, 385 flow [2022-01-19 05:03:08,128 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 94.23076923076923) internal successors, (2450), 26 states have internal predecessors, (2450), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:03:08,128 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 05:03:08,128 INFO L254 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 05:03:08,144 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2022-01-19 05:03:08,334 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable54 [2022-01-19 05:03:08,334 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-19 05:03:08,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 05:03:08,335 INFO L85 PathProgramCache]: Analyzing trace with hash 1999958093, now seen corresponding path program 5 times [2022-01-19 05:03:08,335 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 05:03:08,335 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1554832599] [2022-01-19 05:03:08,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 05:03:08,335 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 05:03:08,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 05:03:08,411 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-01-19 05:03:08,411 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 05:03:08,411 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1554832599] [2022-01-19 05:03:08,411 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1554832599] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-19 05:03:08,411 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1301396849] [2022-01-19 05:03:08,411 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-01-19 05:03:08,411 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-19 05:03:08,411 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-19 05:03:08,412 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-19 05:03:08,413 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-01-19 05:03:08,521 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2022-01-19 05:03:08,521 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-19 05:03:08,522 INFO L263 TraceCheckSpWp]: Trace formula consists of 233 conjuncts, 12 conjunts are in the unsatisfiable core [2022-01-19 05:03:08,523 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-19 05:03:08,636 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-01-19 05:03:08,636 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-19 05:03:08,828 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-01-19 05:03:08,828 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1301396849] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-19 05:03:08,829 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-19 05:03:08,829 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 26 [2022-01-19 05:03:08,829 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [833625306] [2022-01-19 05:03:08,829 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-19 05:03:08,829 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-19 05:03:08,829 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 05:03:08,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-19 05:03:08,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=112, Invalid=538, Unknown=0, NotChecked=0, Total=650 [2022-01-19 05:03:08,830 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 92 out of 131 [2022-01-19 05:03:08,831 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 260 places, 89 transitions, 385 flow. Second operand has 26 states, 26 states have (on average 94.15384615384616) internal successors, (2448), 26 states have internal predecessors, (2448), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:03:08,831 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 05:03:08,831 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 92 of 131 [2022-01-19 05:03:08,832 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 05:03:09,093 INFO L129 PetriNetUnfolder]: 124/423 cut-off events. [2022-01-19 05:03:09,093 INFO L130 PetriNetUnfolder]: For 640/640 co-relation queries the response was YES. [2022-01-19 05:03:09,095 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1121 conditions, 423 events. 124/423 cut-off events. For 640/640 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 1824 event pairs, 34 based on Foata normal form. 2/403 useless extension candidates. Maximal degree in co-relation 1064. Up to 67 conditions per place. [2022-01-19 05:03:09,096 INFO L132 encePairwiseOnDemand]: 119/131 looper letters, 0 selfloop transitions, 0 changer transitions 118/118 dead transitions. [2022-01-19 05:03:09,096 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 204 places, 118 transitions, 623 flow [2022-01-19 05:03:09,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-19 05:03:09,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2022-01-19 05:03:09,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 2179 transitions. [2022-01-19 05:03:09,097 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7231994689678062 [2022-01-19 05:03:09,097 INFO L72 ComplementDD]: Start complementDD. Operand 23 states and 2179 transitions. [2022-01-19 05:03:09,097 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 2179 transitions. [2022-01-19 05:03:09,097 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 05:03:09,097 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 23 states and 2179 transitions. [2022-01-19 05:03:09,098 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 24 states, 23 states have (on average 94.73913043478261) internal successors, (2179), 23 states have internal predecessors, (2179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:03:09,100 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 24 states, 24 states have (on average 131.0) internal successors, (3144), 24 states have internal predecessors, (3144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:03:09,100 INFO L81 ComplementDD]: Finished complementDD. Result has 24 states, 24 states have (on average 131.0) internal successors, (3144), 24 states have internal predecessors, (3144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:03:09,100 INFO L186 Difference]: Start difference. First operand has 260 places, 89 transitions, 385 flow. Second operand 23 states and 2179 transitions. [2022-01-19 05:03:09,100 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 204 places, 118 transitions, 623 flow [2022-01-19 05:03:09,102 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 166 places, 118 transitions, 515 flow, removed 42 selfloop flow, removed 38 redundant places. [2022-01-19 05:03:09,103 INFO L242 Difference]: Finished difference. Result has 166 places, 0 transitions, 0 flow [2022-01-19 05:03:09,103 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=131, PETRI_DIFFERENCE_MINUEND_FLOW=297, PETRI_DIFFERENCE_MINUEND_PLACES=144, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=87, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=87, PETRI_DIFFERENCE_SUBTRAHEND_STATES=23, PETRI_FLOW=0, PETRI_PLACES=166, PETRI_TRANSITIONS=0} [2022-01-19 05:03:09,103 INFO L334 CegarLoopForPetriNet]: 98 programPoint places, 68 predicate places. [2022-01-19 05:03:09,103 INFO L470 AbstractCegarLoop]: Abstraction has has 166 places, 0 transitions, 0 flow [2022-01-19 05:03:09,103 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 94.15384615384616) internal successors, (2448), 26 states have internal predecessors, (2448), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:03:09,103 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (4 of 5 remaining) [2022-01-19 05:03:09,104 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (3 of 5 remaining) [2022-01-19 05:03:09,104 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (2 of 5 remaining) [2022-01-19 05:03:09,104 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (1 of 5 remaining) [2022-01-19 05:03:09,104 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 5 remaining) [2022-01-19 05:03:09,119 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2022-01-19 05:03:09,306 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-19 05:03:09,307 INFO L732 BasicCegarLoop]: Path program histogram: [6, 5, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 05:03:09,307 INFO L309 ceAbstractionStarter]: Result for error location AllErrorsAtOnce was SAFE,SAFE,SAFE,SAFE,SAFE (1/2) [2022-01-19 05:03:09,308 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2022-01-19 05:03:09,308 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-01-19 05:03:09,308 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-01-19 05:03:09,309 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 144 places, 131 transitions, 326 flow [2022-01-19 05:03:09,316 INFO L129 PetriNetUnfolder]: 6/159 cut-off events. [2022-01-19 05:03:09,316 INFO L130 PetriNetUnfolder]: For 16/16 co-relation queries the response was YES. [2022-01-19 05:03:09,316 INFO L84 FinitePrefix]: Finished finitePrefix Result has 188 conditions, 159 events. 6/159 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 227 event pairs, 0 based on Foata normal form. 0/147 useless extension candidates. Maximal degree in co-relation 179. Up to 10 conditions per place. [2022-01-19 05:03:09,317 INFO L82 GeneralOperation]: Start removeDead. Operand has 144 places, 131 transitions, 326 flow [2022-01-19 05:03:09,317 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 98 places, 88 transitions, 211 flow [2022-01-19 05:03:09,324 INFO L129 PetriNetUnfolder]: 6/153 cut-off events. [2022-01-19 05:03:09,325 INFO L130 PetriNetUnfolder]: For 16/16 co-relation queries the response was YES. [2022-01-19 05:03:09,325 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 05:03:09,325 INFO L254 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 05:03:09,325 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-01-19 05:03:09,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 05:03:09,325 INFO L85 PathProgramCache]: Analyzing trace with hash 1128792526, now seen corresponding path program 1 times [2022-01-19 05:03:09,325 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 05:03:09,325 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [49495854] [2022-01-19 05:03:09,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 05:03:09,325 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 05:03:09,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-19 05:03:09,334 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-01-19 05:03:09,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-19 05:03:09,351 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-01-19 05:03:09,352 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-01-19 05:03:09,352 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 2 remaining) [2022-01-19 05:03:09,352 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATION (0 of 2 remaining) [2022-01-19 05:03:09,352 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2022-01-19 05:03:09,352 INFO L732 BasicCegarLoop]: Path program histogram: [1] [2022-01-19 05:03:09,352 INFO L309 ceAbstractionStarter]: Result for error location InUseError was UNSAFE,UNKNOWN (2/2) [2022-01-19 05:03:09,352 WARN L235 ceAbstractionStarter]: 4 thread instances were not sufficient, I will increase this number and restart the analysis [2022-01-19 05:03:09,352 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 5 thread instances. [2022-01-19 05:03:09,362 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread4of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:03:09,362 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread4of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:03:09,362 WARN L322 ript$VariableManager]: TermVariabe thr2Thread4of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:03:09,362 WARN L322 ript$VariableManager]: TermVariabe thr2Thread4of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:03:09,362 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread4of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:03:09,362 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread4of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:03:09,362 WARN L322 ript$VariableManager]: TermVariabe thr2Thread4of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:03:09,362 WARN L322 ript$VariableManager]: TermVariabe thr2Thread4of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:03:09,362 WARN L322 ript$VariableManager]: TermVariabe thr2Thread4of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:03:09,362 WARN L322 ript$VariableManager]: TermVariabe thr2Thread4of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:03:09,362 WARN L322 ript$VariableManager]: TermVariabe thr2Thread4of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:03:09,362 WARN L322 ript$VariableManager]: TermVariabe thr2Thread4of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:03:09,362 WARN L322 ript$VariableManager]: TermVariabe thr2Thread4of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:03:09,362 WARN L322 ript$VariableManager]: TermVariabe thr2Thread4of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:03:09,362 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread4of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:03:09,362 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread4of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:03:09,363 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread4of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:03:09,363 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread4of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:03:09,363 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread5of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:03:09,363 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread5of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:03:09,363 WARN L322 ript$VariableManager]: TermVariabe thr2Thread5of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:03:09,363 WARN L322 ript$VariableManager]: TermVariabe thr2Thread5of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:03:09,363 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread5of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:03:09,363 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread5of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:03:09,363 WARN L322 ript$VariableManager]: TermVariabe thr2Thread5of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:03:09,363 WARN L322 ript$VariableManager]: TermVariabe thr2Thread5of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:03:09,363 WARN L322 ript$VariableManager]: TermVariabe thr2Thread5of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:03:09,363 WARN L322 ript$VariableManager]: TermVariabe thr2Thread5of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:03:09,363 WARN L322 ript$VariableManager]: TermVariabe thr2Thread5of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:03:09,363 WARN L322 ript$VariableManager]: TermVariabe thr2Thread5of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:03:09,363 WARN L322 ript$VariableManager]: TermVariabe thr2Thread5of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:03:09,363 WARN L322 ript$VariableManager]: TermVariabe thr2Thread5of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:03:09,363 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread5of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:03:09,363 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread5of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:03:09,363 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread5of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:03:09,363 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread5of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:03:09,364 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread3of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:03:09,364 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread3of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:03:09,364 WARN L322 ript$VariableManager]: TermVariabe thr2Thread3of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:03:09,364 WARN L322 ript$VariableManager]: TermVariabe thr2Thread3of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:03:09,364 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread3of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:03:09,364 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread3of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:03:09,364 WARN L322 ript$VariableManager]: TermVariabe thr2Thread3of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:03:09,364 WARN L322 ript$VariableManager]: TermVariabe thr2Thread3of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:03:09,364 WARN L322 ript$VariableManager]: TermVariabe thr2Thread3of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:03:09,364 WARN L322 ript$VariableManager]: TermVariabe thr2Thread3of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:03:09,364 WARN L322 ript$VariableManager]: TermVariabe thr2Thread3of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:03:09,364 WARN L322 ript$VariableManager]: TermVariabe thr2Thread3of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:03:09,364 WARN L322 ript$VariableManager]: TermVariabe thr2Thread3of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:03:09,364 WARN L322 ript$VariableManager]: TermVariabe thr2Thread3of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:03:09,364 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread3of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:03:09,364 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread3of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:03:09,364 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread3of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:03:09,364 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread3of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:03:09,364 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread2of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:03:09,364 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread2of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:03:09,365 WARN L322 ript$VariableManager]: TermVariabe thr2Thread2of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:03:09,365 WARN L322 ript$VariableManager]: TermVariabe thr2Thread2of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:03:09,365 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread2of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:03:09,365 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread2of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:03:09,365 WARN L322 ript$VariableManager]: TermVariabe thr2Thread2of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:03:09,365 WARN L322 ript$VariableManager]: TermVariabe thr2Thread2of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:03:09,365 WARN L322 ript$VariableManager]: TermVariabe thr2Thread2of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:03:09,365 WARN L322 ript$VariableManager]: TermVariabe thr2Thread2of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:03:09,365 WARN L322 ript$VariableManager]: TermVariabe thr2Thread2of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:03:09,365 WARN L322 ript$VariableManager]: TermVariabe thr2Thread2of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:03:09,365 WARN L322 ript$VariableManager]: TermVariabe thr2Thread2of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:03:09,365 WARN L322 ript$VariableManager]: TermVariabe thr2Thread2of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:03:09,365 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread2of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:03:09,365 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread2of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:03:09,365 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread2of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:03:09,365 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread2of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:03:09,366 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:03:09,366 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:03:09,366 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:03:09,366 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:03:09,366 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:03:09,366 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:03:09,366 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:03:09,366 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:03:09,366 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:03:09,366 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:03:09,366 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:03:09,366 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:03:09,366 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:03:09,367 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:03:09,367 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:03:09,367 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:03:09,367 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:03:09,367 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:03:09,367 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork1_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:03:09,367 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork1_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:03:09,367 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork1_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:03:09,367 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork1_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:03:09,367 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork1_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:03:09,367 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork1_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:03:09,367 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork1_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:03:09,367 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork1_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:03:09,367 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork1___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:03:09,368 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork1___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:03:09,368 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:03:09,368 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:03:09,368 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork1___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:03:09,368 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:03:09,368 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork1___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:03:09,368 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:03:09,368 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:03:09,368 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:03:09,368 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:03:09,368 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:03:09,368 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:03:09,368 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:03:09,368 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:03:09,368 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:03:09,369 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork1_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:03:09,369 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork1_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:03:09,369 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork1_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:03:09,369 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork1_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:03:09,369 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork1_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:03:09,369 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork1_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:03:09,369 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork1_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:03:09,369 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork1_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:03:09,369 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork1___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:03:09,369 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork1___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:03:09,370 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:03:09,370 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:03:09,370 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork1___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:03:09,370 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:03:09,370 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork1___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:03:09,370 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:03:09,370 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:03:09,370 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:03:09,370 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:03:09,370 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:03:09,370 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:03:09,370 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:03:09,370 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:03:09,370 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:03:09,370 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork1_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:03:09,370 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork1_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:03:09,370 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork1_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:03:09,370 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork1_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:03:09,370 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork1_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:03:09,370 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork1_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:03:09,371 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork1_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:03:09,371 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork1_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:03:09,371 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork1___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:03:09,371 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork1___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:03:09,371 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:03:09,371 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:03:09,371 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork1___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:03:09,371 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:03:09,371 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork1___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:03:09,371 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:03:09,371 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:03:09,371 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:03:09,371 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:03:09,371 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:03:09,371 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:03:09,371 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:03:09,371 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:03:09,371 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:03:09,371 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork1_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:03:09,372 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork1_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:03:09,372 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork1_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:03:09,372 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork1_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:03:09,372 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork1_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:03:09,372 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork1_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:03:09,372 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork1_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:03:09,372 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork1_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:03:09,372 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork1___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:03:09,372 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork1___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:03:09,372 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:03:09,372 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:03:09,372 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork1___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:03:09,372 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:03:09,372 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork1___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:03:09,372 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:03:09,372 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:03:09,372 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:03:09,372 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:03:09,372 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:03:09,372 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:03:09,372 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:03:09,373 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:03:09,373 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:03:09,373 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork1_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:03:09,373 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork1_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:03:09,373 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork1_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:03:09,373 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork1_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:03:09,373 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork1_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:03:09,373 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork1_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:03:09,373 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork1_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:03:09,373 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork1_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:03:09,373 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork1___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:03:09,373 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork1___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:03:09,373 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:03:09,373 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:03:09,373 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork1___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:03:09,373 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:03:09,373 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork1___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:03:09,373 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:03:09,373 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:03:09,373 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:03:09,373 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:03:09,374 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:03:09,374 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:03:09,374 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:03:09,374 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:03:09,374 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:03:09,374 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:03:09,374 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:03:09,374 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:03:09,374 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:03:09,374 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:03:09,375 WARN L322 ript$VariableManager]: TermVariabe thr2Thread2of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:03:09,375 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread2of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:03:09,375 WARN L322 ript$VariableManager]: TermVariabe thr2Thread2of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:03:09,375 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread2of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:03:09,375 WARN L322 ript$VariableManager]: TermVariabe thr2Thread2of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:03:09,375 WARN L322 ript$VariableManager]: TermVariabe thr2Thread3of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:03:09,375 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread3of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:03:09,375 WARN L322 ript$VariableManager]: TermVariabe thr2Thread3of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:03:09,375 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread3of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:03:09,375 WARN L322 ript$VariableManager]: TermVariabe thr2Thread3of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:03:09,375 WARN L322 ript$VariableManager]: TermVariabe thr2Thread4of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:03:09,375 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread4of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:03:09,375 WARN L322 ript$VariableManager]: TermVariabe thr2Thread4of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:03:09,376 WARN L322 ript$VariableManager]: TermVariabe thr2Thread4of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:03:09,376 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread4of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:03:09,376 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread5of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:03:09,376 WARN L322 ript$VariableManager]: TermVariabe thr2Thread5of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:03:09,376 WARN L322 ript$VariableManager]: TermVariabe thr2Thread5of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:03:09,376 WARN L322 ript$VariableManager]: TermVariabe thr2Thread5of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:03:09,376 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread5of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:03:09,376 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:03:09,376 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork1___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:03:09,376 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:03:09,376 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork1_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:03:09,376 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:03:09,376 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork1_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:03:09,377 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:03:09,377 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:03:09,377 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:03:09,377 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork1___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:03:09,377 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork1_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:03:09,377 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork1_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:03:09,377 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:03:09,377 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:03:09,377 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork1_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:03:09,377 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork1___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:03:09,377 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:03:09,377 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork1_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:03:09,377 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:03:09,378 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:03:09,378 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:03:09,378 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork1___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:03:09,378 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork1_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:03:09,378 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork1_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:03:09,378 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:03:09,378 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:03:09,378 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork1___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:03:09,378 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:03:09,378 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork1_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:03:09,378 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork1_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:03:09,378 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-01-19 05:03:09,379 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-19 05:03:09,379 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-01-19 05:03:09,379 INFO L340 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2022-01-19 05:03:09,382 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 168 places, 152 transitions, 394 flow [2022-01-19 05:03:09,389 INFO L129 PetriNetUnfolder]: 7/185 cut-off events. [2022-01-19 05:03:09,389 INFO L130 PetriNetUnfolder]: For 30/30 co-relation queries the response was YES. [2022-01-19 05:03:09,390 INFO L84 FinitePrefix]: Finished finitePrefix Result has 223 conditions, 185 events. 7/185 cut-off events. For 30/30 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 272 event pairs, 0 based on Foata normal form. 0/171 useless extension candidates. Maximal degree in co-relation 212. Up to 12 conditions per place. [2022-01-19 05:03:09,390 INFO L82 GeneralOperation]: Start removeDead. Operand has 168 places, 152 transitions, 394 flow [2022-01-19 05:03:09,390 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 107 places, 95 transitions, 238 flow [2022-01-19 05:03:09,392 INFO L129 PetriNetUnfolder]: 2/46 cut-off events. [2022-01-19 05:03:09,392 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-01-19 05:03:09,392 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 05:03:09,392 INFO L254 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] [2022-01-19 05:03:09,392 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-19 05:03:09,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 05:03:09,392 INFO L85 PathProgramCache]: Analyzing trace with hash -1792086513, now seen corresponding path program 1 times [2022-01-19 05:03:09,392 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 05:03:09,392 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [61269261] [2022-01-19 05:03:09,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 05:03:09,393 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 05:03:09,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 05:03:09,410 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 05:03:09,410 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 05:03:09,410 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [61269261] [2022-01-19 05:03:09,410 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [61269261] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 05:03:09,410 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 05:03:09,410 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-19 05:03:09,410 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1947029578] [2022-01-19 05:03:09,410 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 05:03:09,411 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-19 05:03:09,411 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 05:03:09,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-19 05:03:09,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-19 05:03:09,411 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 110 out of 152 [2022-01-19 05:03:09,412 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 107 places, 95 transitions, 238 flow. Second operand has 5 states, 5 states have (on average 111.4) internal successors, (557), 5 states have internal predecessors, (557), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:03:09,412 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 05:03:09,412 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 110 of 152 [2022-01-19 05:03:09,412 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 05:03:10,791 INFO L129 PetriNetUnfolder]: 10041/19329 cut-off events. [2022-01-19 05:03:10,791 INFO L130 PetriNetUnfolder]: For 13906/13906 co-relation queries the response was YES. [2022-01-19 05:03:10,926 INFO L84 FinitePrefix]: Finished finitePrefix Result has 38672 conditions, 19329 events. 10041/19329 cut-off events. For 13906/13906 co-relation queries the response was YES. Maximal size of possible extension queue 1044. Compared 178940 event pairs, 3292 based on Foata normal form. 3369/21881 useless extension candidates. Maximal degree in co-relation 38635. Up to 5964 conditions per place. [2022-01-19 05:03:10,980 INFO L132 encePairwiseOnDemand]: 140/152 looper letters, 30 selfloop transitions, 6 changer transitions 83/185 dead transitions. [2022-01-19 05:03:10,980 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 113 places, 185 transitions, 848 flow [2022-01-19 05:03:10,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-19 05:03:10,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-01-19 05:03:10,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1006 transitions. [2022-01-19 05:03:10,981 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8273026315789473 [2022-01-19 05:03:10,981 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1006 transitions. [2022-01-19 05:03:10,981 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1006 transitions. [2022-01-19 05:03:10,982 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 05:03:10,982 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1006 transitions. [2022-01-19 05:03:10,982 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 125.75) internal successors, (1006), 8 states have internal predecessors, (1006), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:03:10,983 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 152.0) internal successors, (1368), 9 states have internal predecessors, (1368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:03:10,983 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 152.0) internal successors, (1368), 9 states have internal predecessors, (1368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:03:10,983 INFO L186 Difference]: Start difference. First operand has 107 places, 95 transitions, 238 flow. Second operand 8 states and 1006 transitions. [2022-01-19 05:03:10,983 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 113 places, 185 transitions, 848 flow [2022-01-19 05:03:10,985 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 112 places, 185 transitions, 755 flow, removed 46 selfloop flow, removed 1 redundant places. [2022-01-19 05:03:10,987 INFO L242 Difference]: Finished difference. Result has 117 places, 93 transitions, 271 flow [2022-01-19 05:03:10,987 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=152, PETRI_DIFFERENCE_MINUEND_FLOW=211, PETRI_DIFFERENCE_MINUEND_PLACES=105, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=92, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=86, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=271, PETRI_PLACES=117, PETRI_TRANSITIONS=93} [2022-01-19 05:03:10,987 INFO L334 CegarLoopForPetriNet]: 107 programPoint places, 10 predicate places. [2022-01-19 05:03:10,987 INFO L470 AbstractCegarLoop]: Abstraction has has 117 places, 93 transitions, 271 flow [2022-01-19 05:03:10,987 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 111.4) internal successors, (557), 5 states have internal predecessors, (557), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:03:10,987 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 05:03:10,987 INFO L254 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] [2022-01-19 05:03:10,987 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2022-01-19 05:03:10,987 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-19 05:03:10,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 05:03:10,988 INFO L85 PathProgramCache]: Analyzing trace with hash -2115911927, now seen corresponding path program 1 times [2022-01-19 05:03:10,988 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 05:03:10,988 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1815958845] [2022-01-19 05:03:10,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 05:03:10,988 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 05:03:11,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 05:03:11,025 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 05:03:11,026 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 05:03:11,026 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1815958845] [2022-01-19 05:03:11,026 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1815958845] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 05:03:11,026 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 05:03:11,026 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-19 05:03:11,026 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [530640034] [2022-01-19 05:03:11,026 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 05:03:11,026 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-19 05:03:11,026 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 05:03:11,026 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-19 05:03:11,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-01-19 05:03:11,027 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 152 [2022-01-19 05:03:11,027 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 117 places, 93 transitions, 271 flow. Second operand has 7 states, 7 states have (on average 110.57142857142857) internal successors, (774), 7 states have internal predecessors, (774), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:03:11,027 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 05:03:11,027 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 152 [2022-01-19 05:03:11,028 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 05:03:12,565 INFO L129 PetriNetUnfolder]: 10402/19474 cut-off events. [2022-01-19 05:03:12,566 INFO L130 PetriNetUnfolder]: For 15024/15024 co-relation queries the response was YES. [2022-01-19 05:03:12,729 INFO L84 FinitePrefix]: Finished finitePrefix Result has 55882 conditions, 19474 events. 10402/19474 cut-off events. For 15024/15024 co-relation queries the response was YES. Maximal size of possible extension queue 1203. Compared 183207 event pairs, 2345 based on Foata normal form. 211/19493 useless extension candidates. Maximal degree in co-relation 55839. Up to 7109 conditions per place. [2022-01-19 05:03:12,829 INFO L132 encePairwiseOnDemand]: 142/152 looper letters, 64 selfloop transitions, 16 changer transitions 51/196 dead transitions. [2022-01-19 05:03:12,829 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 117 places, 196 transitions, 1069 flow [2022-01-19 05:03:12,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-19 05:03:12,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-01-19 05:03:12,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1223 transitions. [2022-01-19 05:03:12,830 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8046052631578947 [2022-01-19 05:03:12,830 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1223 transitions. [2022-01-19 05:03:12,830 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1223 transitions. [2022-01-19 05:03:12,831 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 05:03:12,831 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1223 transitions. [2022-01-19 05:03:12,831 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 122.3) internal successors, (1223), 10 states have internal predecessors, (1223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:03:12,832 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 152.0) internal successors, (1672), 11 states have internal predecessors, (1672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:03:12,832 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 152.0) internal successors, (1672), 11 states have internal predecessors, (1672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:03:12,832 INFO L186 Difference]: Start difference. First operand has 117 places, 93 transitions, 271 flow. Second operand 10 states and 1223 transitions. [2022-01-19 05:03:12,832 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 117 places, 196 transitions, 1069 flow [2022-01-19 05:03:13,249 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 114 places, 196 transitions, 1043 flow, removed 8 selfloop flow, removed 3 redundant places. [2022-01-19 05:03:13,250 INFO L242 Difference]: Finished difference. Result has 121 places, 103 transitions, 410 flow [2022-01-19 05:03:13,251 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=152, PETRI_DIFFERENCE_MINUEND_FLOW=261, PETRI_DIFFERENCE_MINUEND_PLACES=105, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=93, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=81, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=410, PETRI_PLACES=121, PETRI_TRANSITIONS=103} [2022-01-19 05:03:13,251 INFO L334 CegarLoopForPetriNet]: 107 programPoint places, 14 predicate places. [2022-01-19 05:03:13,251 INFO L470 AbstractCegarLoop]: Abstraction has has 121 places, 103 transitions, 410 flow [2022-01-19 05:03:13,251 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 110.57142857142857) internal successors, (774), 7 states have internal predecessors, (774), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:03:13,251 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 05:03:13,251 INFO L254 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 05:03:13,251 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2022-01-19 05:03:13,251 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-19 05:03:13,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 05:03:13,252 INFO L85 PathProgramCache]: Analyzing trace with hash 1235881139, now seen corresponding path program 1 times [2022-01-19 05:03:13,252 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 05:03:13,252 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1451825070] [2022-01-19 05:03:13,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 05:03:13,252 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 05:03:13,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 05:03:13,276 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-01-19 05:03:13,276 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 05:03:13,276 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1451825070] [2022-01-19 05:03:13,276 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1451825070] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 05:03:13,276 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 05:03:13,277 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-19 05:03:13,277 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1032463145] [2022-01-19 05:03:13,277 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 05:03:13,277 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-19 05:03:13,277 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 05:03:13,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-19 05:03:13,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-01-19 05:03:13,278 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 152 [2022-01-19 05:03:13,278 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 121 places, 103 transitions, 410 flow. Second operand has 7 states, 7 states have (on average 110.71428571428571) internal successors, (775), 7 states have internal predecessors, (775), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:03:13,278 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 05:03:13,278 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 152 [2022-01-19 05:03:13,278 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 05:03:16,830 INFO L129 PetriNetUnfolder]: 16046/33375 cut-off events. [2022-01-19 05:03:16,830 INFO L130 PetriNetUnfolder]: For 82374/82374 co-relation queries the response was YES. [2022-01-19 05:03:17,075 INFO L84 FinitePrefix]: Finished finitePrefix Result has 118321 conditions, 33375 events. 16046/33375 cut-off events. For 82374/82374 co-relation queries the response was YES. Maximal size of possible extension queue 2162. Compared 364812 event pairs, 7082 based on Foata normal form. 365/32894 useless extension candidates. Maximal degree in co-relation 118272. Up to 11384 conditions per place. [2022-01-19 05:03:17,276 INFO L132 encePairwiseOnDemand]: 142/152 looper letters, 72 selfloop transitions, 25 changer transitions 59/221 dead transitions. [2022-01-19 05:03:17,276 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 126 places, 221 transitions, 1613 flow [2022-01-19 05:03:17,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-19 05:03:17,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-01-19 05:03:17,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1220 transitions. [2022-01-19 05:03:17,277 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8026315789473685 [2022-01-19 05:03:17,277 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1220 transitions. [2022-01-19 05:03:17,277 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1220 transitions. [2022-01-19 05:03:17,278 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 05:03:17,278 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1220 transitions. [2022-01-19 05:03:17,278 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 122.0) internal successors, (1220), 10 states have internal predecessors, (1220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:03:17,279 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 152.0) internal successors, (1672), 11 states have internal predecessors, (1672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:03:17,279 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 152.0) internal successors, (1672), 11 states have internal predecessors, (1672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:03:17,279 INFO L186 Difference]: Start difference. First operand has 121 places, 103 transitions, 410 flow. Second operand 10 states and 1220 transitions. [2022-01-19 05:03:17,279 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 126 places, 221 transitions, 1613 flow [2022-01-19 05:03:18,858 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 120 places, 221 transitions, 1436 flow, removed 76 selfloop flow, removed 6 redundant places. [2022-01-19 05:03:18,860 INFO L242 Difference]: Finished difference. Result has 127 places, 118 transitions, 604 flow [2022-01-19 05:03:18,860 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=152, PETRI_DIFFERENCE_MINUEND_FLOW=363, PETRI_DIFFERENCE_MINUEND_PLACES=111, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=103, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=85, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=604, PETRI_PLACES=127, PETRI_TRANSITIONS=118} [2022-01-19 05:03:18,860 INFO L334 CegarLoopForPetriNet]: 107 programPoint places, 20 predicate places. [2022-01-19 05:03:18,860 INFO L470 AbstractCegarLoop]: Abstraction has has 127 places, 118 transitions, 604 flow [2022-01-19 05:03:18,860 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 110.71428571428571) internal successors, (775), 7 states have internal predecessors, (775), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:03:18,860 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 05:03:18,860 INFO L254 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 05:03:18,860 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2022-01-19 05:03:18,861 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-19 05:03:18,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 05:03:18,861 INFO L85 PathProgramCache]: Analyzing trace with hash 781721201, now seen corresponding path program 1 times [2022-01-19 05:03:18,861 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 05:03:18,861 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1294635184] [2022-01-19 05:03:18,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 05:03:18,861 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 05:03:18,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 05:03:18,900 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 05:03:18,900 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 05:03:18,900 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1294635184] [2022-01-19 05:03:18,900 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1294635184] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-19 05:03:18,900 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [587073130] [2022-01-19 05:03:18,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 05:03:18,901 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-19 05:03:18,901 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-19 05:03:18,901 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-19 05:03:18,902 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2022-01-19 05:03:18,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 05:03:18,995 INFO L263 TraceCheckSpWp]: Trace formula consists of 163 conjuncts, 8 conjunts are in the unsatisfiable core [2022-01-19 05:03:18,996 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-19 05:03:19,081 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 05:03:19,081 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-19 05:03:19,176 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 05:03:19,176 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [587073130] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-19 05:03:19,176 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-19 05:03:19,176 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2022-01-19 05:03:19,177 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1428569606] [2022-01-19 05:03:19,177 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-19 05:03:19,177 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-19 05:03:19,177 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 05:03:19,177 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-19 05:03:19,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=246, Unknown=0, NotChecked=0, Total=306 [2022-01-19 05:03:19,178 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 108 out of 152 [2022-01-19 05:03:19,179 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 127 places, 118 transitions, 604 flow. Second operand has 18 states, 18 states have (on average 110.0) internal successors, (1980), 18 states have internal predecessors, (1980), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:03:19,179 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 05:03:19,179 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 108 of 152 [2022-01-19 05:03:19,179 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 05:03:23,454 INFO L129 PetriNetUnfolder]: 18516/38464 cut-off events. [2022-01-19 05:03:23,454 INFO L130 PetriNetUnfolder]: For 121957/121957 co-relation queries the response was YES. [2022-01-19 05:03:23,887 INFO L84 FinitePrefix]: Finished finitePrefix Result has 145442 conditions, 38464 events. 18516/38464 cut-off events. For 121957/121957 co-relation queries the response was YES. Maximal size of possible extension queue 2480. Compared 431694 event pairs, 5153 based on Foata normal form. 130/37818 useless extension candidates. Maximal degree in co-relation 145390. Up to 10861 conditions per place. [2022-01-19 05:03:24,141 INFO L132 encePairwiseOnDemand]: 141/152 looper letters, 162 selfloop transitions, 56 changer transitions 78/360 dead transitions. [2022-01-19 05:03:24,141 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 146 places, 360 transitions, 2951 flow [2022-01-19 05:03:24,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-01-19 05:03:24,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2022-01-19 05:03:24,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 2887 transitions. [2022-01-19 05:03:24,143 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7913925438596491 [2022-01-19 05:03:24,143 INFO L72 ComplementDD]: Start complementDD. Operand 24 states and 2887 transitions. [2022-01-19 05:03:24,143 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 2887 transitions. [2022-01-19 05:03:24,143 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 05:03:24,143 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 24 states and 2887 transitions. [2022-01-19 05:03:24,145 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 25 states, 24 states have (on average 120.29166666666667) internal successors, (2887), 24 states have internal predecessors, (2887), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:03:24,146 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 25 states, 25 states have (on average 152.0) internal successors, (3800), 25 states have internal predecessors, (3800), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:03:24,146 INFO L81 ComplementDD]: Finished complementDD. Result has 25 states, 25 states have (on average 152.0) internal successors, (3800), 25 states have internal predecessors, (3800), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:03:24,146 INFO L186 Difference]: Start difference. First operand has 127 places, 118 transitions, 604 flow. Second operand 24 states and 2887 transitions. [2022-01-19 05:03:24,147 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 146 places, 360 transitions, 2951 flow [2022-01-19 05:03:26,191 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 141 places, 360 transitions, 2597 flow, removed 173 selfloop flow, removed 5 redundant places. [2022-01-19 05:03:26,194 INFO L242 Difference]: Finished difference. Result has 155 places, 143 transitions, 1037 flow [2022-01-19 05:03:26,194 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=152, PETRI_DIFFERENCE_MINUEND_FLOW=552, PETRI_DIFFERENCE_MINUEND_PLACES=118, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=118, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=31, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=80, PETRI_DIFFERENCE_SUBTRAHEND_STATES=24, PETRI_FLOW=1037, PETRI_PLACES=155, PETRI_TRANSITIONS=143} [2022-01-19 05:03:26,194 INFO L334 CegarLoopForPetriNet]: 107 programPoint places, 48 predicate places. [2022-01-19 05:03:26,194 INFO L470 AbstractCegarLoop]: Abstraction has has 155 places, 143 transitions, 1037 flow [2022-01-19 05:03:26,194 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 110.0) internal successors, (1980), 18 states have internal predecessors, (1980), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:03:26,194 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 05:03:26,194 INFO L254 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 05:03:26,210 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2022-01-19 05:03:26,395 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60,16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-19 05:03:26,395 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-19 05:03:26,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 05:03:26,395 INFO L85 PathProgramCache]: Analyzing trace with hash -443363588, now seen corresponding path program 1 times [2022-01-19 05:03:26,395 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 05:03:26,395 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [366478175] [2022-01-19 05:03:26,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 05:03:26,396 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 05:03:26,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 05:03:26,434 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-01-19 05:03:26,434 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 05:03:26,434 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [366478175] [2022-01-19 05:03:26,434 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [366478175] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 05:03:26,434 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 05:03:26,435 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-19 05:03:26,435 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1711251137] [2022-01-19 05:03:26,435 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 05:03:26,435 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-19 05:03:26,435 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 05:03:26,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-19 05:03:26,435 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-01-19 05:03:26,436 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 152 [2022-01-19 05:03:26,436 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 155 places, 143 transitions, 1037 flow. Second operand has 7 states, 7 states have (on average 110.85714285714286) internal successors, (776), 7 states have internal predecessors, (776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:03:26,436 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 05:03:26,436 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 152 [2022-01-19 05:03:26,436 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 05:03:33,348 INFO L129 PetriNetUnfolder]: 26100/53922 cut-off events. [2022-01-19 05:03:33,348 INFO L130 PetriNetUnfolder]: For 365771/365771 co-relation queries the response was YES. [2022-01-19 05:03:34,188 INFO L84 FinitePrefix]: Finished finitePrefix Result has 264138 conditions, 53922 events. 26100/53922 cut-off events. For 365771/365771 co-relation queries the response was YES. Maximal size of possible extension queue 3888. Compared 647814 event pairs, 11117 based on Foata normal form. 733/53935 useless extension candidates. Maximal degree in co-relation 264075. Up to 19440 conditions per place. [2022-01-19 05:03:34,636 INFO L132 encePairwiseOnDemand]: 142/152 looper letters, 127 selfloop transitions, 48 changer transitions 113/353 dead transitions. [2022-01-19 05:03:34,636 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 156 places, 353 transitions, 4202 flow [2022-01-19 05:03:34,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-19 05:03:34,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-01-19 05:03:34,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1213 transitions. [2022-01-19 05:03:34,637 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7980263157894737 [2022-01-19 05:03:34,637 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1213 transitions. [2022-01-19 05:03:34,637 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1213 transitions. [2022-01-19 05:03:34,638 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 05:03:34,638 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1213 transitions. [2022-01-19 05:03:34,638 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 121.3) internal successors, (1213), 10 states have internal predecessors, (1213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:03:34,639 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 152.0) internal successors, (1672), 11 states have internal predecessors, (1672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:03:34,639 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 152.0) internal successors, (1672), 11 states have internal predecessors, (1672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:03:34,639 INFO L186 Difference]: Start difference. First operand has 155 places, 143 transitions, 1037 flow. Second operand 10 states and 1213 transitions. [2022-01-19 05:03:34,639 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 156 places, 353 transitions, 4202 flow [2022-01-19 05:03:49,765 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 141 places, 353 transitions, 3660 flow, removed 173 selfloop flow, removed 15 redundant places. [2022-01-19 05:03:49,767 INFO L242 Difference]: Finished difference. Result has 148 places, 174 transitions, 1477 flow [2022-01-19 05:03:49,767 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=152, PETRI_DIFFERENCE_MINUEND_FLOW=876, PETRI_DIFFERENCE_MINUEND_PLACES=132, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=143, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=107, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=1477, PETRI_PLACES=148, PETRI_TRANSITIONS=174} [2022-01-19 05:03:49,768 INFO L334 CegarLoopForPetriNet]: 107 programPoint places, 41 predicate places. [2022-01-19 05:03:49,768 INFO L470 AbstractCegarLoop]: Abstraction has has 148 places, 174 transitions, 1477 flow [2022-01-19 05:03:49,768 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 110.85714285714286) internal successors, (776), 7 states have internal predecessors, (776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:03:49,768 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 05:03:49,768 INFO L254 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 05:03:49,768 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2022-01-19 05:03:49,768 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-19 05:03:49,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 05:03:49,768 INFO L85 PathProgramCache]: Analyzing trace with hash -1446921478, now seen corresponding path program 1 times [2022-01-19 05:03:49,768 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 05:03:49,768 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1388347719] [2022-01-19 05:03:49,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 05:03:49,769 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 05:03:49,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 05:03:49,802 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-01-19 05:03:49,802 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 05:03:49,802 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1388347719] [2022-01-19 05:03:49,802 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1388347719] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-19 05:03:49,802 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1017530350] [2022-01-19 05:03:49,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 05:03:49,802 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-19 05:03:49,802 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-19 05:03:49,803 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-19 05:03:49,804 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2022-01-19 05:03:49,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 05:03:49,911 INFO L263 TraceCheckSpWp]: Trace formula consists of 189 conjuncts, 8 conjunts are in the unsatisfiable core [2022-01-19 05:03:49,912 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-19 05:03:50,011 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-01-19 05:03:50,011 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-19 05:03:50,115 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-01-19 05:03:50,115 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1017530350] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-19 05:03:50,115 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-19 05:03:50,115 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2022-01-19 05:03:50,115 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1761599959] [2022-01-19 05:03:50,115 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-19 05:03:50,116 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-19 05:03:50,116 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 05:03:50,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-19 05:03:50,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=246, Unknown=0, NotChecked=0, Total=306 [2022-01-19 05:03:50,117 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 108 out of 152 [2022-01-19 05:03:50,117 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 148 places, 174 transitions, 1477 flow. Second operand has 18 states, 18 states have (on average 110.11111111111111) internal successors, (1982), 18 states have internal predecessors, (1982), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:03:50,118 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 05:03:50,118 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 108 of 152 [2022-01-19 05:03:50,118 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 05:03:58,109 INFO L129 PetriNetUnfolder]: 28701/60877 cut-off events. [2022-01-19 05:03:58,110 INFO L130 PetriNetUnfolder]: For 382203/382207 co-relation queries the response was YES. [2022-01-19 05:03:58,792 INFO L84 FinitePrefix]: Finished finitePrefix Result has 287429 conditions, 60877 events. 28701/60877 cut-off events. For 382203/382207 co-relation queries the response was YES. Maximal size of possible extension queue 4368. Compared 755128 event pairs, 8689 based on Foata normal form. 278/60679 useless extension candidates. Maximal degree in co-relation 287368. Up to 19405 conditions per place. [2022-01-19 05:03:59,394 INFO L132 encePairwiseOnDemand]: 141/152 looper letters, 199 selfloop transitions, 102 changer transitions 98/463 dead transitions. [2022-01-19 05:03:59,394 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 167 places, 463 transitions, 5329 flow [2022-01-19 05:03:59,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-01-19 05:03:59,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2022-01-19 05:03:59,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 2878 transitions. [2022-01-19 05:03:59,396 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7889254385964912 [2022-01-19 05:03:59,396 INFO L72 ComplementDD]: Start complementDD. Operand 24 states and 2878 transitions. [2022-01-19 05:03:59,396 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 2878 transitions. [2022-01-19 05:03:59,397 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 05:03:59,397 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 24 states and 2878 transitions. [2022-01-19 05:03:59,398 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 25 states, 24 states have (on average 119.91666666666667) internal successors, (2878), 24 states have internal predecessors, (2878), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:03:59,400 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 25 states, 25 states have (on average 152.0) internal successors, (3800), 25 states have internal predecessors, (3800), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:03:59,400 INFO L81 ComplementDD]: Finished complementDD. Result has 25 states, 25 states have (on average 152.0) internal successors, (3800), 25 states have internal predecessors, (3800), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:03:59,400 INFO L186 Difference]: Start difference. First operand has 148 places, 174 transitions, 1477 flow. Second operand 24 states and 2878 transitions. [2022-01-19 05:03:59,400 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 167 places, 463 transitions, 5329 flow [2022-01-19 05:04:08,995 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 162 places, 463 transitions, 4800 flow, removed 258 selfloop flow, removed 5 redundant places. [2022-01-19 05:04:08,998 INFO L242 Difference]: Finished difference. Result has 176 places, 214 transitions, 2296 flow [2022-01-19 05:04:08,998 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=152, PETRI_DIFFERENCE_MINUEND_FLOW=1364, PETRI_DIFFERENCE_MINUEND_PLACES=139, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=174, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=62, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=99, PETRI_DIFFERENCE_SUBTRAHEND_STATES=24, PETRI_FLOW=2296, PETRI_PLACES=176, PETRI_TRANSITIONS=214} [2022-01-19 05:04:08,999 INFO L334 CegarLoopForPetriNet]: 107 programPoint places, 69 predicate places. [2022-01-19 05:04:08,999 INFO L470 AbstractCegarLoop]: Abstraction has has 176 places, 214 transitions, 2296 flow [2022-01-19 05:04:08,999 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 110.11111111111111) internal successors, (1982), 18 states have internal predecessors, (1982), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:04:08,999 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 05:04:08,999 INFO L254 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 05:04:09,014 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2022-01-19 05:04:09,199 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62,17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-19 05:04:09,200 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-19 05:04:09,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 05:04:09,200 INFO L85 PathProgramCache]: Analyzing trace with hash -1307182406, now seen corresponding path program 1 times [2022-01-19 05:04:09,200 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 05:04:09,200 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [172059233] [2022-01-19 05:04:09,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 05:04:09,200 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 05:04:09,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 05:04:09,235 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-01-19 05:04:09,236 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 05:04:09,236 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [172059233] [2022-01-19 05:04:09,236 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [172059233] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 05:04:09,236 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 05:04:09,236 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-01-19 05:04:09,236 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [177650601] [2022-01-19 05:04:09,236 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 05:04:09,236 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-19 05:04:09,236 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 05:04:09,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-19 05:04:09,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2022-01-19 05:04:09,237 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 108 out of 152 [2022-01-19 05:04:09,238 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 176 places, 214 transitions, 2296 flow. Second operand has 9 states, 9 states have (on average 109.77777777777777) internal successors, (988), 9 states have internal predecessors, (988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:04:09,238 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 05:04:09,238 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 108 of 152 [2022-01-19 05:04:09,238 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 05:04:19,333 INFO L129 PetriNetUnfolder]: 29443/66847 cut-off events. [2022-01-19 05:04:19,334 INFO L130 PetriNetUnfolder]: For 594576/594576 co-relation queries the response was YES. [2022-01-19 05:04:20,294 INFO L84 FinitePrefix]: Finished finitePrefix Result has 338706 conditions, 66847 events. 29443/66847 cut-off events. For 594576/594576 co-relation queries the response was YES. Maximal size of possible extension queue 4715. Compared 869503 event pairs, 9790 based on Foata normal form. 159/65968 useless extension candidates. Maximal degree in co-relation 338634. Up to 20249 conditions per place. [2022-01-19 05:04:21,003 INFO L132 encePairwiseOnDemand]: 141/152 looper letters, 201 selfloop transitions, 120 changer transitions 53/438 dead transitions. [2022-01-19 05:04:21,003 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 184 places, 438 transitions, 5667 flow [2022-01-19 05:04:21,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-19 05:04:21,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2022-01-19 05:04:21,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 2046 transitions. [2022-01-19 05:04:21,005 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.791795665634675 [2022-01-19 05:04:21,005 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 2046 transitions. [2022-01-19 05:04:21,005 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 2046 transitions. [2022-01-19 05:04:21,005 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 05:04:21,005 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 2046 transitions. [2022-01-19 05:04:21,006 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 120.3529411764706) internal successors, (2046), 17 states have internal predecessors, (2046), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:04:21,007 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 152.0) internal successors, (2736), 18 states have internal predecessors, (2736), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:04:21,007 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 152.0) internal successors, (2736), 18 states have internal predecessors, (2736), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:04:21,008 INFO L186 Difference]: Start difference. First operand has 176 places, 214 transitions, 2296 flow. Second operand 17 states and 2046 transitions. [2022-01-19 05:04:21,008 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 184 places, 438 transitions, 5667 flow [2022-01-19 05:04:45,517 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 173 places, 438 transitions, 5138 flow, removed 243 selfloop flow, removed 11 redundant places. [2022-01-19 05:04:45,521 INFO L242 Difference]: Finished difference. Result has 180 places, 253 transitions, 3073 flow [2022-01-19 05:04:45,521 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=152, PETRI_DIFFERENCE_MINUEND_FLOW=2111, PETRI_DIFFERENCE_MINUEND_PLACES=157, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=214, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=81, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=124, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=3073, PETRI_PLACES=180, PETRI_TRANSITIONS=253} [2022-01-19 05:04:45,521 INFO L334 CegarLoopForPetriNet]: 107 programPoint places, 73 predicate places. [2022-01-19 05:04:45,522 INFO L470 AbstractCegarLoop]: Abstraction has has 180 places, 253 transitions, 3073 flow [2022-01-19 05:04:45,522 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 109.77777777777777) internal successors, (988), 9 states have internal predecessors, (988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:04:45,522 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 05:04:45,522 INFO L254 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 05:04:45,522 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2022-01-19 05:04:45,523 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-19 05:04:45,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 05:04:45,523 INFO L85 PathProgramCache]: Analyzing trace with hash 2136089386, now seen corresponding path program 2 times [2022-01-19 05:04:45,523 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 05:04:45,523 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2114900136] [2022-01-19 05:04:45,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 05:04:45,523 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 05:04:45,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 05:04:45,561 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-01-19 05:04:45,561 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 05:04:45,561 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2114900136] [2022-01-19 05:04:45,561 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2114900136] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 05:04:45,561 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 05:04:45,561 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-01-19 05:04:45,561 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1638931092] [2022-01-19 05:04:45,561 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 05:04:45,562 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-19 05:04:45,562 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 05:04:45,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-19 05:04:45,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2022-01-19 05:04:45,562 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 108 out of 152 [2022-01-19 05:04:45,563 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 180 places, 253 transitions, 3073 flow. Second operand has 9 states, 9 states have (on average 109.77777777777777) internal successors, (988), 9 states have internal predecessors, (988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:04:45,563 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 05:04:45,563 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 108 of 152 [2022-01-19 05:04:45,563 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 05:04:54,993 INFO L129 PetriNetUnfolder]: 30417/65805 cut-off events. [2022-01-19 05:04:54,993 INFO L130 PetriNetUnfolder]: For 561401/561401 co-relation queries the response was YES. [2022-01-19 05:04:55,928 INFO L84 FinitePrefix]: Finished finitePrefix Result has 343991 conditions, 65805 events. 30417/65805 cut-off events. For 561401/561401 co-relation queries the response was YES. Maximal size of possible extension queue 4937. Compared 845700 event pairs, 8721 based on Foata normal form. 159/65827 useless extension candidates. Maximal degree in co-relation 343920. Up to 21299 conditions per place. [2022-01-19 05:04:56,596 INFO L132 encePairwiseOnDemand]: 141/152 looper letters, 209 selfloop transitions, 140 changer transitions 53/466 dead transitions. [2022-01-19 05:04:56,596 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 192 places, 466 transitions, 6280 flow [2022-01-19 05:04:56,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-19 05:04:56,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2022-01-19 05:04:56,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 2046 transitions. [2022-01-19 05:04:56,597 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.791795665634675 [2022-01-19 05:04:56,597 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 2046 transitions. [2022-01-19 05:04:56,598 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 2046 transitions. [2022-01-19 05:04:56,598 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 05:04:56,598 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 2046 transitions. [2022-01-19 05:04:56,599 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 120.3529411764706) internal successors, (2046), 17 states have internal predecessors, (2046), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:04:56,600 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 152.0) internal successors, (2736), 18 states have internal predecessors, (2736), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:04:56,600 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 152.0) internal successors, (2736), 18 states have internal predecessors, (2736), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:04:56,600 INFO L186 Difference]: Start difference. First operand has 180 places, 253 transitions, 3073 flow. Second operand 17 states and 2046 transitions. [2022-01-19 05:04:56,600 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 192 places, 466 transitions, 6280 flow [2022-01-19 05:05:15,556 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 185 places, 466 transitions, 5896 flow, removed 131 selfloop flow, removed 7 redundant places. [2022-01-19 05:05:15,560 INFO L242 Difference]: Finished difference. Result has 192 places, 282 transitions, 3771 flow [2022-01-19 05:05:15,561 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=152, PETRI_DIFFERENCE_MINUEND_FLOW=2877, PETRI_DIFFERENCE_MINUEND_PLACES=169, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=253, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=111, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=133, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=3771, PETRI_PLACES=192, PETRI_TRANSITIONS=282} [2022-01-19 05:05:15,561 INFO L334 CegarLoopForPetriNet]: 107 programPoint places, 85 predicate places. [2022-01-19 05:05:15,561 INFO L470 AbstractCegarLoop]: Abstraction has has 192 places, 282 transitions, 3771 flow [2022-01-19 05:05:15,561 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 109.77777777777777) internal successors, (988), 9 states have internal predecessors, (988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:05:15,561 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 05:05:15,561 INFO L254 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 05:05:15,561 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2022-01-19 05:05:15,561 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-19 05:05:15,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 05:05:15,562 INFO L85 PathProgramCache]: Analyzing trace with hash -1707607014, now seen corresponding path program 1 times [2022-01-19 05:05:15,562 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 05:05:15,562 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1469063089] [2022-01-19 05:05:15,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 05:05:15,562 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 05:05:15,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 05:05:15,619 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-01-19 05:05:15,619 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 05:05:15,619 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1469063089] [2022-01-19 05:05:15,619 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1469063089] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 05:05:15,619 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 05:05:15,619 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-19 05:05:15,619 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [237790346] [2022-01-19 05:05:15,619 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 05:05:15,620 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-19 05:05:15,620 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 05:05:15,620 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-19 05:05:15,620 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2022-01-19 05:05:15,620 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 152 [2022-01-19 05:05:15,621 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 192 places, 282 transitions, 3771 flow. Second operand has 11 states, 11 states have (on average 108.72727272727273) internal successors, (1196), 11 states have internal predecessors, (1196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:05:15,621 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 05:05:15,621 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 152 [2022-01-19 05:05:15,621 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 05:05:27,674 INFO L129 PetriNetUnfolder]: 34719/78001 cut-off events. [2022-01-19 05:05:27,674 INFO L130 PetriNetUnfolder]: For 784544/784544 co-relation queries the response was YES. [2022-01-19 05:05:28,865 INFO L84 FinitePrefix]: Finished finitePrefix Result has 396146 conditions, 78001 events. 34719/78001 cut-off events. For 784544/784544 co-relation queries the response was YES. Maximal size of possible extension queue 5401. Compared 1026245 event pairs, 9997 based on Foata normal form. 19/76672 useless extension candidates. Maximal degree in co-relation 396071. Up to 22825 conditions per place. [2022-01-19 05:05:29,783 INFO L132 encePairwiseOnDemand]: 140/152 looper letters, 298 selfloop transitions, 204 changer transitions 27/592 dead transitions. [2022-01-19 05:05:29,784 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 220 places, 592 transitions, 7595 flow [2022-01-19 05:05:29,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-01-19 05:05:29,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2022-01-19 05:05:29,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 3940 transitions. [2022-01-19 05:05:29,786 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7854864433811802 [2022-01-19 05:05:29,786 INFO L72 ComplementDD]: Start complementDD. Operand 33 states and 3940 transitions. [2022-01-19 05:05:29,786 INFO L73 IsDeterministic]: Start isDeterministic. Operand 33 states and 3940 transitions. [2022-01-19 05:05:29,786 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 05:05:29,786 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 33 states and 3940 transitions. [2022-01-19 05:05:29,788 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 34 states, 33 states have (on average 119.39393939393939) internal successors, (3940), 33 states have internal predecessors, (3940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:05:29,790 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 34 states, 34 states have (on average 152.0) internal successors, (5168), 34 states have internal predecessors, (5168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:05:29,790 INFO L81 ComplementDD]: Finished complementDD. Result has 34 states, 34 states have (on average 152.0) internal successors, (5168), 34 states have internal predecessors, (5168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:05:29,791 INFO L186 Difference]: Start difference. First operand has 192 places, 282 transitions, 3771 flow. Second operand 33 states and 3940 transitions. [2022-01-19 05:05:29,791 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 220 places, 592 transitions, 7595 flow [2022-01-19 05:05:48,663 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 207 places, 592 transitions, 6958 flow, removed 194 selfloop flow, removed 13 redundant places. [2022-01-19 05:05:48,668 INFO L242 Difference]: Finished difference. Result has 214 places, 308 transitions, 4383 flow [2022-01-19 05:05:48,668 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=152, PETRI_DIFFERENCE_MINUEND_FLOW=3450, PETRI_DIFFERENCE_MINUEND_PLACES=175, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=282, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=178, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=100, PETRI_DIFFERENCE_SUBTRAHEND_STATES=33, PETRI_FLOW=4383, PETRI_PLACES=214, PETRI_TRANSITIONS=308} [2022-01-19 05:05:48,668 INFO L334 CegarLoopForPetriNet]: 107 programPoint places, 107 predicate places. [2022-01-19 05:05:48,669 INFO L470 AbstractCegarLoop]: Abstraction has has 214 places, 308 transitions, 4383 flow [2022-01-19 05:05:48,669 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 108.72727272727273) internal successors, (1196), 11 states have internal predecessors, (1196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:05:48,669 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 05:05:48,669 INFO L254 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 05:05:48,669 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65 [2022-01-19 05:05:48,669 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-19 05:05:48,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 05:05:48,669 INFO L85 PathProgramCache]: Analyzing trace with hash 1167933480, now seen corresponding path program 2 times [2022-01-19 05:05:48,669 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 05:05:48,669 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1044919125] [2022-01-19 05:05:48,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 05:05:48,670 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 05:05:48,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 05:05:48,718 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-01-19 05:05:48,718 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 05:05:48,718 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1044919125] [2022-01-19 05:05:48,718 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1044919125] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-19 05:05:48,718 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [875252409] [2022-01-19 05:05:48,718 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-01-19 05:05:48,718 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-19 05:05:48,718 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-19 05:05:48,719 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-19 05:05:48,720 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2022-01-19 05:05:48,821 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-01-19 05:05:48,821 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-19 05:05:48,822 INFO L263 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 10 conjunts are in the unsatisfiable core [2022-01-19 05:05:48,823 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-19 05:05:48,921 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-01-19 05:05:48,921 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-19 05:05:49,061 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-01-19 05:05:49,061 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [875252409] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-19 05:05:49,061 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-19 05:05:49,061 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 22 [2022-01-19 05:05:49,061 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1760377876] [2022-01-19 05:05:49,061 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-19 05:05:49,062 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-01-19 05:05:49,062 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 05:05:49,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-01-19 05:05:49,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=378, Unknown=0, NotChecked=0, Total=462 [2022-01-19 05:05:49,063 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 152 [2022-01-19 05:05:49,064 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 214 places, 308 transitions, 4383 flow. Second operand has 22 states, 22 states have (on average 109.0) internal successors, (2398), 22 states have internal predecessors, (2398), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:05:49,064 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 05:05:49,064 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 152 [2022-01-19 05:05:49,064 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 05:06:04,704 INFO L129 PetriNetUnfolder]: 35196/83552 cut-off events. [2022-01-19 05:06:04,705 INFO L130 PetriNetUnfolder]: For 924352/924352 co-relation queries the response was YES. [2022-01-19 05:06:05,995 INFO L84 FinitePrefix]: Finished finitePrefix Result has 418123 conditions, 83552 events. 35196/83552 cut-off events. For 924352/924352 co-relation queries the response was YES. Maximal size of possible extension queue 5665. Compared 1143722 event pairs, 8935 based on Foata normal form. 76/81855 useless extension candidates. Maximal degree in co-relation 418045. Up to 23351 conditions per place. [2022-01-19 05:06:06,863 INFO L132 encePairwiseOnDemand]: 140/152 looper letters, 463 selfloop transitions, 280 changer transitions 108/914 dead transitions. [2022-01-19 05:06:06,863 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 278 places, 914 transitions, 11910 flow [2022-01-19 05:06:06,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2022-01-19 05:06:06,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69 states. [2022-01-19 05:06:06,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 8149 transitions. [2022-01-19 05:06:06,866 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7769832189168574 [2022-01-19 05:06:06,866 INFO L72 ComplementDD]: Start complementDD. Operand 69 states and 8149 transitions. [2022-01-19 05:06:06,866 INFO L73 IsDeterministic]: Start isDeterministic. Operand 69 states and 8149 transitions. [2022-01-19 05:06:06,867 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 05:06:06,867 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 69 states and 8149 transitions. [2022-01-19 05:06:06,872 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 70 states, 69 states have (on average 118.10144927536231) internal successors, (8149), 69 states have internal predecessors, (8149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:06:06,876 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 70 states, 70 states have (on average 152.0) internal successors, (10640), 70 states have internal predecessors, (10640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:06:06,876 INFO L81 ComplementDD]: Finished complementDD. Result has 70 states, 70 states have (on average 152.0) internal successors, (10640), 70 states have internal predecessors, (10640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:06:06,876 INFO L186 Difference]: Start difference. First operand has 214 places, 308 transitions, 4383 flow. Second operand 69 states and 8149 transitions. [2022-01-19 05:06:06,876 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 278 places, 914 transitions, 11910 flow [2022-01-19 05:06:29,179 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 256 places, 914 transitions, 10876 flow, removed 365 selfloop flow, removed 22 redundant places. [2022-01-19 05:06:29,186 INFO L242 Difference]: Finished difference. Result has 284 places, 367 transitions, 5832 flow [2022-01-19 05:06:29,186 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=152, PETRI_DIFFERENCE_MINUEND_FLOW=4017, PETRI_DIFFERENCE_MINUEND_PLACES=188, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=308, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=221, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=79, PETRI_DIFFERENCE_SUBTRAHEND_STATES=69, PETRI_FLOW=5832, PETRI_PLACES=284, PETRI_TRANSITIONS=367} [2022-01-19 05:06:29,186 INFO L334 CegarLoopForPetriNet]: 107 programPoint places, 177 predicate places. [2022-01-19 05:06:29,186 INFO L470 AbstractCegarLoop]: Abstraction has has 284 places, 367 transitions, 5832 flow [2022-01-19 05:06:29,187 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 109.0) internal successors, (2398), 22 states have internal predecessors, (2398), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:06:29,187 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 05:06:29,187 INFO L254 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 05:06:29,204 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2022-01-19 05:06:29,387 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66,18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-19 05:06:29,387 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-19 05:06:29,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 05:06:29,388 INFO L85 PathProgramCache]: Analyzing trace with hash -756870216, now seen corresponding path program 3 times [2022-01-19 05:06:29,388 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 05:06:29,388 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1349865197] [2022-01-19 05:06:29,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 05:06:29,388 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 05:06:29,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 05:06:29,439 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-01-19 05:06:29,439 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 05:06:29,439 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1349865197] [2022-01-19 05:06:29,439 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1349865197] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-19 05:06:29,439 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [517689319] [2022-01-19 05:06:29,439 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-01-19 05:06:29,440 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-19 05:06:29,440 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-19 05:06:29,440 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-19 05:06:29,441 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2022-01-19 05:06:29,546 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-01-19 05:06:29,546 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-19 05:06:29,547 INFO L263 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 10 conjunts are in the unsatisfiable core [2022-01-19 05:06:29,548 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-19 05:06:29,661 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-01-19 05:06:29,661 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-19 05:06:29,789 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-01-19 05:06:29,789 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [517689319] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-19 05:06:29,789 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-19 05:06:29,789 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 22 [2022-01-19 05:06:29,789 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [175987878] [2022-01-19 05:06:29,789 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-19 05:06:29,789 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-01-19 05:06:29,789 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 05:06:29,790 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-01-19 05:06:29,790 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=378, Unknown=0, NotChecked=0, Total=462 [2022-01-19 05:06:29,791 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 152 [2022-01-19 05:06:29,791 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 284 places, 367 transitions, 5832 flow. Second operand has 22 states, 22 states have (on average 109.0909090909091) internal successors, (2400), 22 states have internal predecessors, (2400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:06:29,791 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 05:06:29,791 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 152 [2022-01-19 05:06:29,792 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 05:06:44,958 INFO L129 PetriNetUnfolder]: 35079/74709 cut-off events. [2022-01-19 05:06:44,959 INFO L130 PetriNetUnfolder]: For 1674805/1674805 co-relation queries the response was YES. [2022-01-19 05:06:46,386 INFO L84 FinitePrefix]: Finished finitePrefix Result has 506293 conditions, 74709 events. 35079/74709 cut-off events. For 1674805/1674805 co-relation queries the response was YES. Maximal size of possible extension queue 5393. Compared 961406 event pairs, 8047 based on Foata normal form. 19/74138 useless extension candidates. Maximal degree in co-relation 506193. Up to 23310 conditions per place. [2022-01-19 05:06:47,294 INFO L132 encePairwiseOnDemand]: 140/152 looper letters, 466 selfloop transitions, 313 changer transitions 27/869 dead transitions. [2022-01-19 05:06:47,295 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 324 places, 869 transitions, 13816 flow [2022-01-19 05:06:47,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2022-01-19 05:06:47,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57 states. [2022-01-19 05:06:47,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 6778 transitions. [2022-01-19 05:06:47,298 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7823176361957526 [2022-01-19 05:06:47,298 INFO L72 ComplementDD]: Start complementDD. Operand 57 states and 6778 transitions. [2022-01-19 05:06:47,298 INFO L73 IsDeterministic]: Start isDeterministic. Operand 57 states and 6778 transitions. [2022-01-19 05:06:47,299 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 05:06:47,299 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 57 states and 6778 transitions. [2022-01-19 05:06:47,304 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 58 states, 57 states have (on average 118.91228070175438) internal successors, (6778), 57 states have internal predecessors, (6778), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:06:47,308 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 58 states, 58 states have (on average 152.0) internal successors, (8816), 58 states have internal predecessors, (8816), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:06:47,308 INFO L81 ComplementDD]: Finished complementDD. Result has 58 states, 58 states have (on average 152.0) internal successors, (8816), 58 states have internal predecessors, (8816), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:06:47,308 INFO L186 Difference]: Start difference. First operand has 284 places, 367 transitions, 5832 flow. Second operand 57 states and 6778 transitions. [2022-01-19 05:06:47,308 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 324 places, 869 transitions, 13816 flow [2022-01-19 05:08:09,670 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 287 places, 869 transitions, 11101 flow, removed 1186 selfloop flow, removed 37 redundant places. [2022-01-19 05:08:09,677 INFO L242 Difference]: Finished difference. Result has 294 places, 404 transitions, 6542 flow [2022-01-19 05:08:09,677 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=152, PETRI_DIFFERENCE_MINUEND_FLOW=5187, PETRI_DIFFERENCE_MINUEND_PLACES=231, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=367, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=276, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=87, PETRI_DIFFERENCE_SUBTRAHEND_STATES=57, PETRI_FLOW=6542, PETRI_PLACES=294, PETRI_TRANSITIONS=404} [2022-01-19 05:08:09,678 INFO L334 CegarLoopForPetriNet]: 107 programPoint places, 187 predicate places. [2022-01-19 05:08:09,678 INFO L470 AbstractCegarLoop]: Abstraction has has 294 places, 404 transitions, 6542 flow [2022-01-19 05:08:09,678 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 109.0909090909091) internal successors, (2400), 22 states have internal predecessors, (2400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:08:09,678 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 05:08:09,678 INFO L254 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 05:08:09,694 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2022-01-19 05:08:09,883 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67,19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-19 05:08:09,883 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-19 05:08:09,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 05:08:09,884 INFO L85 PathProgramCache]: Analyzing trace with hash -929670620, now seen corresponding path program 1 times [2022-01-19 05:08:09,884 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 05:08:09,884 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [100805587] [2022-01-19 05:08:09,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 05:08:09,884 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 05:08:09,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 05:08:09,914 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-01-19 05:08:09,914 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 05:08:09,914 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [100805587] [2022-01-19 05:08:09,914 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [100805587] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 05:08:09,914 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 05:08:09,914 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-19 05:08:09,915 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [463798791] [2022-01-19 05:08:09,915 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 05:08:09,915 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-19 05:08:09,915 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 05:08:09,915 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-19 05:08:09,915 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-01-19 05:08:09,916 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 152 [2022-01-19 05:08:09,916 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 294 places, 404 transitions, 6542 flow. Second operand has 7 states, 7 states have (on average 111.0) internal successors, (777), 7 states have internal predecessors, (777), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:08:09,916 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 05:08:09,916 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 152 [2022-01-19 05:08:09,916 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 05:08:29,253 INFO L129 PetriNetUnfolder]: 42144/97391 cut-off events. [2022-01-19 05:08:29,253 INFO L130 PetriNetUnfolder]: For 1872431/1872439 co-relation queries the response was YES. [2022-01-19 05:08:31,301 INFO L84 FinitePrefix]: Finished finitePrefix Result has 654560 conditions, 97391 events. 42144/97391 cut-off events. For 1872431/1872439 co-relation queries the response was YES. Maximal size of possible extension queue 8122. Compared 1375596 event pairs, 17584 based on Foata normal form. 1743/98484 useless extension candidates. Maximal degree in co-relation 654469. Up to 35829 conditions per place. [2022-01-19 05:08:32,100 INFO L132 encePairwiseOnDemand]: 142/152 looper letters, 564 selfloop transitions, 160 changer transitions 551/1340 dead transitions. [2022-01-19 05:08:32,100 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 299 places, 1340 transitions, 28607 flow [2022-01-19 05:08:32,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-19 05:08:32,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-01-19 05:08:32,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1206 transitions. [2022-01-19 05:08:32,213 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7934210526315789 [2022-01-19 05:08:32,213 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1206 transitions. [2022-01-19 05:08:32,213 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1206 transitions. [2022-01-19 05:08:32,213 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 05:08:32,213 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1206 transitions. [2022-01-19 05:08:32,214 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 120.6) internal successors, (1206), 10 states have internal predecessors, (1206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:08:32,214 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 152.0) internal successors, (1672), 11 states have internal predecessors, (1672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:08:32,214 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 152.0) internal successors, (1672), 11 states have internal predecessors, (1672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:08:32,214 INFO L186 Difference]: Start difference. First operand has 294 places, 404 transitions, 6542 flow. Second operand 10 states and 1206 transitions. [2022-01-19 05:08:32,215 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 299 places, 1340 transitions, 28607 flow [2022-01-19 05:09:33,237 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 275 places, 1340 transitions, 26659 flow, removed 399 selfloop flow, removed 24 redundant places. [2022-01-19 05:09:33,248 INFO L242 Difference]: Finished difference. Result has 282 places, 535 transitions, 9640 flow [2022-01-19 05:09:33,249 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=152, PETRI_DIFFERENCE_MINUEND_FLOW=6006, PETRI_DIFFERENCE_MINUEND_PLACES=266, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=404, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=29, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=264, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=9640, PETRI_PLACES=282, PETRI_TRANSITIONS=535} [2022-01-19 05:09:33,249 INFO L334 CegarLoopForPetriNet]: 107 programPoint places, 175 predicate places. [2022-01-19 05:09:33,249 INFO L470 AbstractCegarLoop]: Abstraction has has 282 places, 535 transitions, 9640 flow [2022-01-19 05:09:33,249 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 111.0) internal successors, (777), 7 states have internal predecessors, (777), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:09:33,249 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 05:09:33,249 INFO L254 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 05:09:33,250 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68 [2022-01-19 05:09:33,250 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-19 05:09:33,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 05:09:33,250 INFO L85 PathProgramCache]: Analyzing trace with hash 321029350, now seen corresponding path program 1 times [2022-01-19 05:09:33,250 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 05:09:33,250 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [623619906] [2022-01-19 05:09:33,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 05:09:33,250 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 05:09:33,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 05:09:33,290 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 29 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-01-19 05:09:33,290 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 05:09:33,290 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [623619906] [2022-01-19 05:09:33,290 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [623619906] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-19 05:09:33,290 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [550005516] [2022-01-19 05:09:33,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 05:09:33,290 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-19 05:09:33,291 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-19 05:09:33,300 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-19 05:09:33,301 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2022-01-19 05:09:33,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 05:09:33,405 INFO L263 TraceCheckSpWp]: Trace formula consists of 215 conjuncts, 8 conjunts are in the unsatisfiable core [2022-01-19 05:09:33,406 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-19 05:09:33,504 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 29 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-01-19 05:09:33,505 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-19 05:09:33,628 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 29 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-01-19 05:09:33,628 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [550005516] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-19 05:09:33,628 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-19 05:09:33,628 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2022-01-19 05:09:33,628 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [346270409] [2022-01-19 05:09:33,628 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-19 05:09:33,629 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-19 05:09:33,629 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 05:09:33,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-19 05:09:33,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=246, Unknown=0, NotChecked=0, Total=306 [2022-01-19 05:09:33,630 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 108 out of 152 [2022-01-19 05:09:33,630 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 282 places, 535 transitions, 9640 flow. Second operand has 18 states, 18 states have (on average 110.22222222222223) internal successors, (1984), 18 states have internal predecessors, (1984), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:09:33,630 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 05:09:33,631 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 108 of 152 [2022-01-19 05:09:33,631 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 05:09:57,246 INFO L129 PetriNetUnfolder]: 42366/102875 cut-off events. [2022-01-19 05:09:57,246 INFO L130 PetriNetUnfolder]: For 2249043/2249060 co-relation queries the response was YES. [2022-01-19 05:09:59,591 INFO L84 FinitePrefix]: Finished finitePrefix Result has 696762 conditions, 102875 events. 42366/102875 cut-off events. For 2249043/2249060 co-relation queries the response was YES. Maximal size of possible extension queue 8338. Compared 1496332 event pairs, 15802 based on Foata normal form. 666/102714 useless extension candidates. Maximal degree in co-relation 696668. Up to 35333 conditions per place. [2022-01-19 05:10:00,714 INFO L132 encePairwiseOnDemand]: 141/152 looper letters, 561 selfloop transitions, 355 changer transitions 266/1246 dead transitions. [2022-01-19 05:10:00,714 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 301 places, 1246 transitions, 26578 flow [2022-01-19 05:10:00,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-01-19 05:10:00,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2022-01-19 05:10:00,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 2860 transitions. [2022-01-19 05:10:00,716 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7839912280701754 [2022-01-19 05:10:00,716 INFO L72 ComplementDD]: Start complementDD. Operand 24 states and 2860 transitions. [2022-01-19 05:10:00,716 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 2860 transitions. [2022-01-19 05:10:00,716 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 05:10:00,716 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 24 states and 2860 transitions. [2022-01-19 05:10:00,718 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 25 states, 24 states have (on average 119.16666666666667) internal successors, (2860), 24 states have internal predecessors, (2860), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:10:00,719 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 25 states, 25 states have (on average 152.0) internal successors, (3800), 25 states have internal predecessors, (3800), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:10:00,719 INFO L81 ComplementDD]: Finished complementDD. Result has 25 states, 25 states have (on average 152.0) internal successors, (3800), 25 states have internal predecessors, (3800), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:10:00,719 INFO L186 Difference]: Start difference. First operand has 282 places, 535 transitions, 9640 flow. Second operand 24 states and 2860 transitions. [2022-01-19 05:10:00,719 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 301 places, 1246 transitions, 26578 flow [2022-01-19 05:10:58,348 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 295 places, 1246 transitions, 24797 flow, removed 851 selfloop flow, removed 6 redundant places. [2022-01-19 05:10:58,360 INFO L242 Difference]: Finished difference. Result has 309 places, 670 transitions, 13205 flow [2022-01-19 05:10:58,361 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=152, PETRI_DIFFERENCE_MINUEND_FLOW=8966, PETRI_DIFFERENCE_MINUEND_PLACES=272, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=535, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=220, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=258, PETRI_DIFFERENCE_SUBTRAHEND_STATES=24, PETRI_FLOW=13205, PETRI_PLACES=309, PETRI_TRANSITIONS=670} [2022-01-19 05:10:58,361 INFO L334 CegarLoopForPetriNet]: 107 programPoint places, 202 predicate places. [2022-01-19 05:10:58,361 INFO L470 AbstractCegarLoop]: Abstraction has has 309 places, 670 transitions, 13205 flow [2022-01-19 05:10:58,361 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 110.22222222222223) internal successors, (1984), 18 states have internal predecessors, (1984), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:10:58,361 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 05:10:58,361 INFO L254 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 05:10:58,377 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2022-01-19 05:10:58,562 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69,20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-19 05:10:58,562 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-19 05:10:58,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 05:10:58,562 INFO L85 PathProgramCache]: Analyzing trace with hash -568008030, now seen corresponding path program 1 times [2022-01-19 05:10:58,562 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 05:10:58,563 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1326559197] [2022-01-19 05:10:58,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 05:10:58,563 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 05:10:58,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 05:10:58,603 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-01-19 05:10:58,603 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 05:10:58,603 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1326559197] [2022-01-19 05:10:58,603 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1326559197] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-19 05:10:58,603 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1851567907] [2022-01-19 05:10:58,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 05:10:58,604 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-19 05:10:58,604 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-19 05:10:58,605 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-19 05:10:58,605 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2022-01-19 05:10:58,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 05:10:58,713 INFO L263 TraceCheckSpWp]: Trace formula consists of 215 conjuncts, 8 conjunts are in the unsatisfiable core [2022-01-19 05:10:58,714 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-19 05:10:58,814 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-01-19 05:10:58,814 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-19 05:10:58,932 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-01-19 05:10:58,932 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1851567907] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-19 05:10:58,932 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-19 05:10:58,932 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2022-01-19 05:10:58,932 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [60483970] [2022-01-19 05:10:58,932 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-19 05:10:58,933 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-19 05:10:58,933 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 05:10:58,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-19 05:10:58,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=246, Unknown=0, NotChecked=0, Total=306 [2022-01-19 05:10:58,934 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 108 out of 152 [2022-01-19 05:10:58,934 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 309 places, 670 transitions, 13205 flow. Second operand has 18 states, 18 states have (on average 110.27777777777777) internal successors, (1985), 18 states have internal predecessors, (1985), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:10:58,934 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 05:10:58,934 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 108 of 152 [2022-01-19 05:10:58,934 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 05:11:26,259 INFO L129 PetriNetUnfolder]: 44285/109419 cut-off events. [2022-01-19 05:11:26,259 INFO L130 PetriNetUnfolder]: For 2783372/2783376 co-relation queries the response was YES. [2022-01-19 05:11:29,062 INFO L84 FinitePrefix]: Finished finitePrefix Result has 798415 conditions, 109419 events. 44285/109419 cut-off events. For 2783372/2783376 co-relation queries the response was YES. Maximal size of possible extension queue 9106. Compared 1623829 event pairs, 14836 based on Foata normal form. 733/109582 useless extension candidates. Maximal degree in co-relation 798310. Up to 38402 conditions per place. [2022-01-19 05:11:30,217 INFO L132 encePairwiseOnDemand]: 141/152 looper letters, 672 selfloop transitions, 405 changer transitions 278/1419 dead transitions. [2022-01-19 05:11:30,217 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 324 places, 1419 transitions, 31824 flow [2022-01-19 05:11:30,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-01-19 05:11:30,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2022-01-19 05:11:30,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 2859 transitions. [2022-01-19 05:11:30,219 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7837171052631579 [2022-01-19 05:11:30,219 INFO L72 ComplementDD]: Start complementDD. Operand 24 states and 2859 transitions. [2022-01-19 05:11:30,219 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 2859 transitions. [2022-01-19 05:11:30,219 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 05:11:30,219 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 24 states and 2859 transitions. [2022-01-19 05:11:30,221 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 25 states, 24 states have (on average 119.125) internal successors, (2859), 24 states have internal predecessors, (2859), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:11:30,222 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 25 states, 25 states have (on average 152.0) internal successors, (3800), 25 states have internal predecessors, (3800), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:11:30,222 INFO L81 ComplementDD]: Finished complementDD. Result has 25 states, 25 states have (on average 152.0) internal successors, (3800), 25 states have internal predecessors, (3800), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:11:30,222 INFO L186 Difference]: Start difference. First operand has 309 places, 670 transitions, 13205 flow. Second operand 24 states and 2859 transitions. [2022-01-19 05:11:30,222 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 324 places, 1419 transitions, 31824 flow [2022-01-19 05:14:02,599 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 313 places, 1419 transitions, 30048 flow, removed 855 selfloop flow, removed 11 redundant places. [2022-01-19 05:14:02,615 INFO L242 Difference]: Finished difference. Result has 327 places, 822 transitions, 17603 flow [2022-01-19 05:14:02,616 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=152, PETRI_DIFFERENCE_MINUEND_FLOW=12591, PETRI_DIFFERENCE_MINUEND_PLACES=290, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=670, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=253, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=358, PETRI_DIFFERENCE_SUBTRAHEND_STATES=24, PETRI_FLOW=17603, PETRI_PLACES=327, PETRI_TRANSITIONS=822} [2022-01-19 05:14:02,616 INFO L334 CegarLoopForPetriNet]: 107 programPoint places, 220 predicate places. [2022-01-19 05:14:02,616 INFO L470 AbstractCegarLoop]: Abstraction has has 327 places, 822 transitions, 17603 flow [2022-01-19 05:14:02,616 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 110.27777777777777) internal successors, (1985), 18 states have internal predecessors, (1985), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:14:02,616 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 05:14:02,616 INFO L254 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 05:14:02,635 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2022-01-19 05:14:02,819 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70,21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-19 05:14:02,819 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-19 05:14:02,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 05:14:02,820 INFO L85 PathProgramCache]: Analyzing trace with hash -1633108318, now seen corresponding path program 1 times [2022-01-19 05:14:02,820 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 05:14:02,820 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [76708009] [2022-01-19 05:14:02,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 05:14:02,820 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 05:14:02,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 05:14:02,859 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-01-19 05:14:02,859 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 05:14:02,859 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [76708009] [2022-01-19 05:14:02,859 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [76708009] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 05:14:02,859 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 05:14:02,859 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-01-19 05:14:02,859 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [971960560] [2022-01-19 05:14:02,859 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 05:14:02,859 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-19 05:14:02,860 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 05:14:02,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-19 05:14:02,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2022-01-19 05:14:02,860 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 108 out of 152 [2022-01-19 05:14:02,861 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 327 places, 822 transitions, 17603 flow. Second operand has 9 states, 9 states have (on average 109.88888888888889) internal successors, (989), 9 states have internal predecessors, (989), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:14:02,861 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 05:14:02,861 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 108 of 152 [2022-01-19 05:14:02,861 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand