/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.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe005_tso.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-bf34d27 [2022-01-18 22:50:10,340 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-18 22:50:10,341 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-18 22:50:10,362 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-18 22:50:10,363 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-18 22:50:10,365 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-18 22:50:10,368 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-18 22:50:10,373 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-18 22:50:10,374 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-18 22:50:10,375 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-18 22:50:10,375 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-18 22:50:10,376 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-18 22:50:10,376 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-18 22:50:10,376 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-18 22:50:10,377 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-18 22:50:10,378 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-18 22:50:10,378 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-18 22:50:10,388 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-18 22:50:10,391 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-18 22:50:10,392 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-18 22:50:10,393 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-18 22:50:10,399 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-18 22:50:10,400 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-18 22:50:10,400 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-18 22:50:10,402 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-01-18 22:50:10,411 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-18 22:50:10,412 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-18 22:50:10,413 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-18 22:50:10,413 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.epf [2022-01-18 22:50:10,440 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-18 22:50:10,440 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-18 22:50:10,442 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-01-18 22:50:10,442 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-01-18 22:50:10,443 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-18 22:50:10,443 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-18 22:50:10,443 INFO L138 SettingsManager]: * Use SBE=true [2022-01-18 22:50:10,443 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-18 22:50:10,443 INFO L138 SettingsManager]: * sizeof long=4 [2022-01-18 22:50:10,443 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-18 22:50:10,444 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-01-18 22:50:10,444 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-18 22:50:10,444 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-18 22:50:10,444 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-18 22:50:10,444 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-18 22:50:10,444 INFO L138 SettingsManager]: * sizeof long double=12 [2022-01-18 22:50:10,444 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-18 22:50:10,444 INFO L138 SettingsManager]: * Use constant arrays=true [2022-01-18 22:50:10,444 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-18 22:50:10,445 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-18 22:50:10,445 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-18 22:50:10,445 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-01-18 22:50:10,445 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-18 22:50:10,445 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-18 22:50:10,445 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-18 22:50:10,445 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-18 22:50:10,445 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-18 22:50:10,445 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-18 22:50:10,445 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-18 22:50:10,445 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-18 22:50:10,446 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-18 22:50:10,446 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-01-18 22:50:10,602 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-18 22:50:10,616 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-18 22:50:10,618 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-18 22:50:10,618 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-18 22:50:10,619 INFO L275 PluginConnector]: CDTParser initialized [2022-01-18 22:50:10,620 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe005_tso.i [2022-01-18 22:50:10,675 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/13335ea38/b7166b8b52f34055b78207c8bc28cb83/FLAGf0db57fea [2022-01-18 22:50:11,063 INFO L306 CDTParser]: Found 1 translation units. [2022-01-18 22:50:11,064 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe005_tso.i [2022-01-18 22:50:11,075 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/13335ea38/b7166b8b52f34055b78207c8bc28cb83/FLAGf0db57fea [2022-01-18 22:50:11,082 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/13335ea38/b7166b8b52f34055b78207c8bc28cb83 [2022-01-18 22:50:11,084 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-18 22:50:11,085 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-01-18 22:50:11,086 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-18 22:50:11,086 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-18 22:50:11,088 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-18 22:50:11,088 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.01 10:50:11" (1/1) ... [2022-01-18 22:50:11,089 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@fe7c6d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 10:50:11, skipping insertion in model container [2022-01-18 22:50:11,089 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.01 10:50:11" (1/1) ... [2022-01-18 22:50:11,095 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-18 22:50:11,127 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-18 22:50:11,248 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-wmm/safe005_tso.i[945,958] [2022-01-18 22:50:11,325 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-18 22:50:11,329 INFO L203 MainTranslator]: Completed pre-run [2022-01-18 22:50:11,336 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-wmm/safe005_tso.i[945,958] [2022-01-18 22:50:11,353 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-18 22:50:11,375 INFO L208 MainTranslator]: Completed translation [2022-01-18 22:50:11,375 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 10:50:11 WrapperNode [2022-01-18 22:50:11,375 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-18 22:50:11,376 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-18 22:50:11,376 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-18 22:50:11,376 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-18 22:50:11,382 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 10:50:11" (1/1) ... [2022-01-18 22:50:11,406 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 10:50:11" (1/1) ... [2022-01-18 22:50:11,424 INFO L137 Inliner]: procedures = 176, calls = 55, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 71 [2022-01-18 22:50:11,425 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-18 22:50:11,425 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-18 22:50:11,425 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-18 22:50:11,425 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-18 22:50:11,430 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 10:50:11" (1/1) ... [2022-01-18 22:50:11,430 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 10:50:11" (1/1) ... [2022-01-18 22:50:11,443 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 10:50:11" (1/1) ... [2022-01-18 22:50:11,444 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 10:50:11" (1/1) ... [2022-01-18 22:50:11,446 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 10:50:11" (1/1) ... [2022-01-18 22:50:11,447 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 10:50:11" (1/1) ... [2022-01-18 22:50:11,448 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 10:50:11" (1/1) ... [2022-01-18 22:50:11,450 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-18 22:50:11,450 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-18 22:50:11,450 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-18 22:50:11,450 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-18 22:50:11,457 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 10:50:11" (1/1) ... [2022-01-18 22:50:11,463 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-18 22:50:11,470 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 22:50:11,479 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) [2022-01-18 22:50:11,485 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 [2022-01-18 22:50:11,508 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-01-18 22:50:11,509 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-01-18 22:50:11,509 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-18 22:50:11,509 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-01-18 22:50:11,509 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-18 22:50:11,509 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-01-18 22:50:11,509 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-01-18 22:50:11,509 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-01-18 22:50:11,509 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-01-18 22:50:11,509 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-01-18 22:50:11,509 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-01-18 22:50:11,510 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-01-18 22:50:11,510 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-01-18 22:50:11,510 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-18 22:50:11,510 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-18 22:50:11,511 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-01-18 22:50:11,599 INFO L234 CfgBuilder]: Building ICFG [2022-01-18 22:50:11,600 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-18 22:50:11,716 INFO L275 CfgBuilder]: Performing block encoding [2022-01-18 22:50:11,721 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-18 22:50:11,721 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-01-18 22:50:11,722 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.01 10:50:11 BoogieIcfgContainer [2022-01-18 22:50:11,723 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-18 22:50:11,723 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-18 22:50:11,724 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-18 22:50:11,728 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-18 22:50:11,728 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.01 10:50:11" (1/3) ... [2022-01-18 22:50:11,728 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47e28f3f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.01 10:50:11, skipping insertion in model container [2022-01-18 22:50:11,728 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 10:50:11" (2/3) ... [2022-01-18 22:50:11,729 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47e28f3f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.01 10:50:11, skipping insertion in model container [2022-01-18 22:50:11,729 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.01 10:50:11" (3/3) ... [2022-01-18 22:50:11,729 INFO L111 eAbstractionObserver]: Analyzing ICFG safe005_tso.i [2022-01-18 22:50:11,733 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-18 22:50:11,733 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-18 22:50:11,733 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-01-18 22:50:11,754 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:50:11,754 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:50:11,754 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:50:11,754 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:50:11,755 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:50:11,755 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:50:11,755 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:50:11,755 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:50:11,755 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:50:11,755 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:50:11,755 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:50:11,756 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:50:11,756 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:50:11,756 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:50:11,756 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:50:11,756 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:50:11,756 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:50:11,756 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:50:11,756 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:50:11,756 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:50:11,757 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:50:11,757 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:50:11,757 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:50:11,757 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:50:11,757 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:50:11,758 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:50:11,758 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:50:11,758 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:50:11,758 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:50:11,758 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:50:11,758 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:50:11,758 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:50:11,758 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:50:11,759 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:50:11,759 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:50:11,759 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:50:11,761 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:50:11,761 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:50:11,761 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:50:11,761 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:50:11,763 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:50:11,763 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:50:11,763 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:50:11,763 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:50:11,764 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:50:11,764 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:50:11,764 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:50:11,764 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:50:11,764 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-01-18 22:50:11,793 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-18 22:50:11,797 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 [2022-01-18 22:50:11,798 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-01-18 22:50:11,804 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 100 places, 92 transitions, 199 flow [2022-01-18 22:50:11,834 INFO L129 PetriNetUnfolder]: 2/89 cut-off events. [2022-01-18 22:50:11,834 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-01-18 22:50:11,837 INFO L84 FinitePrefix]: Finished finitePrefix Result has 99 conditions, 89 events. 2/89 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 46 event pairs, 0 based on Foata normal form. 0/86 useless extension candidates. Maximal degree in co-relation 68. Up to 2 conditions per place. [2022-01-18 22:50:11,837 INFO L82 GeneralOperation]: Start removeDead. Operand has 100 places, 92 transitions, 199 flow [2022-01-18 22:50:11,839 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 84 places, 75 transitions, 159 flow [2022-01-18 22:50:11,854 INFO L129 PetriNetUnfolder]: 1/74 cut-off events. [2022-01-18 22:50:11,854 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-01-18 22:50:11,854 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-18 22:50:11,855 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 22:50:11,855 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 22:50:11,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 22:50:11,859 INFO L85 PathProgramCache]: Analyzing trace with hash -1011825075, now seen corresponding path program 1 times [2022-01-18 22:50:11,865 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 22:50:11,865 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1473233649] [2022-01-18 22:50:11,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 22:50:11,866 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 22:50:12,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 22:50:12,247 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 22:50:12,248 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 22:50:12,248 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1473233649] [2022-01-18 22:50:12,249 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1473233649] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 22:50:12,249 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 22:50:12,249 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-18 22:50:12,250 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [419907618] [2022-01-18 22:50:12,250 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 22:50:12,256 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-18 22:50:12,257 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 22:50:12,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-18 22:50:12,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-01-18 22:50:12,279 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 92 [2022-01-18 22:50:12,284 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 75 transitions, 159 flow. Second operand has 7 states, 7 states have (on average 71.85714285714286) internal successors, (503), 7 states have internal predecessors, (503), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 22:50:12,284 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-18 22:50:12,284 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 92 [2022-01-18 22:50:12,285 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-18 22:50:12,506 INFO L129 PetriNetUnfolder]: 290/709 cut-off events. [2022-01-18 22:50:12,506 INFO L130 PetriNetUnfolder]: For 10/10 co-relation queries the response was YES. [2022-01-18 22:50:12,508 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1238 conditions, 709 events. 290/709 cut-off events. For 10/10 co-relation queries the response was YES. Maximal size of possible extension queue 59. Compared 3801 event pairs, 11 based on Foata normal form. 31/708 useless extension candidates. Maximal degree in co-relation 1200. Up to 110 conditions per place. [2022-01-18 22:50:12,511 INFO L132 encePairwiseOnDemand]: 81/92 looper letters, 21 selfloop transitions, 6 changer transitions 45/128 dead transitions. [2022-01-18 22:50:12,511 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 128 transitions, 409 flow [2022-01-18 22:50:12,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-01-18 22:50:12,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-01-18 22:50:12,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 988 transitions. [2022-01-18 22:50:12,523 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8260869565217391 [2022-01-18 22:50:12,524 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 988 transitions. [2022-01-18 22:50:12,524 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 988 transitions. [2022-01-18 22:50:12,526 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-18 22:50:12,527 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 988 transitions. [2022-01-18 22:50:12,531 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 76.0) internal successors, (988), 13 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) [2022-01-18 22:50:12,536 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 92.0) internal successors, (1288), 14 states have internal predecessors, (1288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 22:50:12,537 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 92.0) internal successors, (1288), 14 states have internal predecessors, (1288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 22:50:12,538 INFO L186 Difference]: Start difference. First operand has 84 places, 75 transitions, 159 flow. Second operand 13 states and 988 transitions. [2022-01-18 22:50:12,538 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 128 transitions, 409 flow [2022-01-18 22:50:12,541 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 128 transitions, 406 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-01-18 22:50:12,543 INFO L242 Difference]: Finished difference. Result has 105 places, 78 transitions, 240 flow [2022-01-18 22:50:12,544 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=92, PETRI_DIFFERENCE_MINUEND_FLOW=154, PETRI_DIFFERENCE_MINUEND_PLACES=81, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=74, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=240, PETRI_PLACES=105, PETRI_TRANSITIONS=78} [2022-01-18 22:50:12,546 INFO L334 CegarLoopForPetriNet]: 84 programPoint places, 21 predicate places. [2022-01-18 22:50:12,547 INFO L470 AbstractCegarLoop]: Abstraction has has 105 places, 78 transitions, 240 flow [2022-01-18 22:50:12,547 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 71.85714285714286) internal successors, (503), 7 states have internal predecessors, (503), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 22:50:12,547 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-18 22:50:12,547 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 22:50:12,547 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-18 22:50:12,548 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 22:50:12,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 22:50:12,548 INFO L85 PathProgramCache]: Analyzing trace with hash -149277267, now seen corresponding path program 1 times [2022-01-18 22:50:12,548 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 22:50:12,548 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [97020099] [2022-01-18 22:50:12,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 22:50:12,549 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 22:50:12,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 22:50:12,676 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 22:50:12,677 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 22:50:12,677 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [97020099] [2022-01-18 22:50:12,677 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [97020099] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 22:50:12,677 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 22:50:12,677 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-18 22:50:12,677 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1801316123] [2022-01-18 22:50:12,678 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 22:50:12,679 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-18 22:50:12,679 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 22:50:12,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-18 22:50:12,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-01-18 22:50:12,681 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 92 [2022-01-18 22:50:12,682 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 105 places, 78 transitions, 240 flow. Second operand has 7 states, 7 states have (on average 72.14285714285714) internal successors, (505), 7 states have internal predecessors, (505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 22:50:12,682 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-18 22:50:12,682 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 92 [2022-01-18 22:50:12,682 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-18 22:50:12,869 INFO L129 PetriNetUnfolder]: 108/394 cut-off events. [2022-01-18 22:50:12,869 INFO L130 PetriNetUnfolder]: For 837/1159 co-relation queries the response was YES. [2022-01-18 22:50:12,872 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1216 conditions, 394 events. 108/394 cut-off events. For 837/1159 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 1870 event pairs, 14 based on Foata normal form. 13/392 useless extension candidates. Maximal degree in co-relation 1167. Up to 81 conditions per place. [2022-01-18 22:50:12,873 INFO L132 encePairwiseOnDemand]: 82/92 looper letters, 22 selfloop transitions, 7 changer transitions 36/121 dead transitions. [2022-01-18 22:50:12,873 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 108 places, 121 transitions, 674 flow [2022-01-18 22:50:12,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-01-18 22:50:12,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-01-18 22:50:12,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 968 transitions. [2022-01-18 22:50:12,876 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8093645484949833 [2022-01-18 22:50:12,876 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 968 transitions. [2022-01-18 22:50:12,876 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 968 transitions. [2022-01-18 22:50:12,877 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-18 22:50:12,877 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 968 transitions. [2022-01-18 22:50:12,879 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 74.46153846153847) internal successors, (968), 13 states have internal predecessors, (968), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 22:50:12,881 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 92.0) internal successors, (1288), 14 states have internal predecessors, (1288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 22:50:12,882 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 92.0) internal successors, (1288), 14 states have internal predecessors, (1288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 22:50:12,882 INFO L186 Difference]: Start difference. First operand has 105 places, 78 transitions, 240 flow. Second operand 13 states and 968 transitions. [2022-01-18 22:50:12,882 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 108 places, 121 transitions, 674 flow [2022-01-18 22:50:12,890 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 104 places, 121 transitions, 642 flow, removed 15 selfloop flow, removed 4 redundant places. [2022-01-18 22:50:12,892 INFO L242 Difference]: Finished difference. Result has 116 places, 80 transitions, 296 flow [2022-01-18 22:50:12,892 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=92, PETRI_DIFFERENCE_MINUEND_FLOW=226, PETRI_DIFFERENCE_MINUEND_PLACES=92, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=78, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=296, PETRI_PLACES=116, PETRI_TRANSITIONS=80} [2022-01-18 22:50:12,893 INFO L334 CegarLoopForPetriNet]: 84 programPoint places, 32 predicate places. [2022-01-18 22:50:12,893 INFO L470 AbstractCegarLoop]: Abstraction has has 116 places, 80 transitions, 296 flow [2022-01-18 22:50:12,894 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 72.14285714285714) internal successors, (505), 7 states have internal predecessors, (505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 22:50:12,894 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-18 22:50:12,894 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 22:50:12,894 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-18 22:50:12,894 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 22:50:12,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 22:50:12,895 INFO L85 PathProgramCache]: Analyzing trace with hash -1448512061, now seen corresponding path program 1 times [2022-01-18 22:50:12,895 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 22:50:12,896 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1378077312] [2022-01-18 22:50:12,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 22:50:12,896 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 22:50:12,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 22:50:13,021 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 22:50:13,022 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 22:50:13,023 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1378077312] [2022-01-18 22:50:13,023 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1378077312] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 22:50:13,023 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 22:50:13,023 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 22:50:13,024 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [659268346] [2022-01-18 22:50:13,024 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 22:50:13,024 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-18 22:50:13,024 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 22:50:13,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-18 22:50:13,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-01-18 22:50:13,026 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 92 [2022-01-18 22:50:13,027 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 116 places, 80 transitions, 296 flow. Second operand has 8 states, 8 states have (on average 72.0) internal successors, (576), 8 states have internal predecessors, (576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 22:50:13,027 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-18 22:50:13,028 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 92 [2022-01-18 22:50:13,028 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-18 22:50:13,137 INFO L129 PetriNetUnfolder]: 52/293 cut-off events. [2022-01-18 22:50:13,137 INFO L130 PetriNetUnfolder]: For 973/1464 co-relation queries the response was YES. [2022-01-18 22:50:13,138 INFO L84 FinitePrefix]: Finished finitePrefix Result has 955 conditions, 293 events. 52/293 cut-off events. For 973/1464 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 1336 event pairs, 4 based on Foata normal form. 8/290 useless extension candidates. Maximal degree in co-relation 894. Up to 48 conditions per place. [2022-01-18 22:50:13,139 INFO L132 encePairwiseOnDemand]: 81/92 looper letters, 24 selfloop transitions, 11 changer transitions 19/110 dead transitions. [2022-01-18 22:50:13,139 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 114 places, 110 transitions, 675 flow [2022-01-18 22:50:13,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-18 22:50:13,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-01-18 22:50:13,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 604 transitions. [2022-01-18 22:50:13,141 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8206521739130435 [2022-01-18 22:50:13,141 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 604 transitions. [2022-01-18 22:50:13,141 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 604 transitions. [2022-01-18 22:50:13,142 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-18 22:50:13,142 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 604 transitions. [2022-01-18 22:50:13,143 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 75.5) internal successors, (604), 8 states have internal predecessors, (604), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 22:50:13,144 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 92.0) internal successors, (828), 9 states have internal predecessors, (828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 22:50:13,144 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 92.0) internal successors, (828), 9 states have internal predecessors, (828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 22:50:13,144 INFO L186 Difference]: Start difference. First operand has 116 places, 80 transitions, 296 flow. Second operand 8 states and 604 transitions. [2022-01-18 22:50:13,144 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 114 places, 110 transitions, 675 flow [2022-01-18 22:50:13,149 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 107 places, 110 transitions, 607 flow, removed 32 selfloop flow, removed 7 redundant places. [2022-01-18 22:50:13,151 INFO L242 Difference]: Finished difference. Result has 112 places, 83 transitions, 338 flow [2022-01-18 22:50:13,151 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=92, PETRI_DIFFERENCE_MINUEND_FLOW=269, PETRI_DIFFERENCE_MINUEND_PLACES=100, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=80, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=69, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=338, PETRI_PLACES=112, PETRI_TRANSITIONS=83} [2022-01-18 22:50:13,153 INFO L334 CegarLoopForPetriNet]: 84 programPoint places, 28 predicate places. [2022-01-18 22:50:13,153 INFO L470 AbstractCegarLoop]: Abstraction has has 112 places, 83 transitions, 338 flow [2022-01-18 22:50:13,153 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 72.0) internal successors, (576), 8 states have internal predecessors, (576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 22:50:13,153 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-18 22:50:13,153 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 22:50:13,154 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-18 22:50:13,154 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 22:50:13,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 22:50:13,157 INFO L85 PathProgramCache]: Analyzing trace with hash 822818071, now seen corresponding path program 1 times [2022-01-18 22:50:13,161 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 22:50:13,161 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1171023726] [2022-01-18 22:50:13,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 22:50:13,161 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 22:50:13,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 22:50:13,275 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 22:50:13,275 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 22:50:13,276 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1171023726] [2022-01-18 22:50:13,276 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1171023726] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 22:50:13,276 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 22:50:13,276 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 22:50:13,276 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2079324433] [2022-01-18 22:50:13,276 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 22:50:13,276 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-18 22:50:13,277 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 22:50:13,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-18 22:50:13,278 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-01-18 22:50:13,278 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 92 [2022-01-18 22:50:13,279 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 112 places, 83 transitions, 338 flow. Second operand has 8 states, 8 states have (on average 72.125) internal successors, (577), 8 states have internal predecessors, (577), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 22:50:13,279 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-18 22:50:13,279 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 92 [2022-01-18 22:50:13,279 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-18 22:50:13,427 INFO L129 PetriNetUnfolder]: 29/265 cut-off events. [2022-01-18 22:50:13,427 INFO L130 PetriNetUnfolder]: For 656/1398 co-relation queries the response was YES. [2022-01-18 22:50:13,428 INFO L84 FinitePrefix]: Finished finitePrefix Result has 793 conditions, 265 events. 29/265 cut-off events. For 656/1398 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 1279 event pairs, 9 based on Foata normal form. 8/262 useless extension candidates. Maximal degree in co-relation 754. Up to 37 conditions per place. [2022-01-18 22:50:13,429 INFO L132 encePairwiseOnDemand]: 82/92 looper letters, 23 selfloop transitions, 9 changer transitions 22/110 dead transitions. [2022-01-18 22:50:13,429 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 121 places, 110 transitions, 656 flow [2022-01-18 22:50:13,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-01-18 22:50:13,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-01-18 22:50:13,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 959 transitions. [2022-01-18 22:50:13,431 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8018394648829431 [2022-01-18 22:50:13,431 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 959 transitions. [2022-01-18 22:50:13,431 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 959 transitions. [2022-01-18 22:50:13,432 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-18 22:50:13,432 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 959 transitions. [2022-01-18 22:50:13,433 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 73.76923076923077) internal successors, (959), 13 states have internal predecessors, (959), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 22:50:13,434 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 92.0) internal successors, (1288), 14 states have internal predecessors, (1288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 22:50:13,436 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 92.0) internal successors, (1288), 14 states have internal predecessors, (1288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 22:50:13,436 INFO L186 Difference]: Start difference. First operand has 112 places, 83 transitions, 338 flow. Second operand 13 states and 959 transitions. [2022-01-18 22:50:13,436 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 121 places, 110 transitions, 656 flow [2022-01-18 22:50:13,439 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 109 places, 110 transitions, 552 flow, removed 37 selfloop flow, removed 12 redundant places. [2022-01-18 22:50:13,441 INFO L242 Difference]: Finished difference. Result has 121 places, 81 transitions, 319 flow [2022-01-18 22:50:13,442 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=92, PETRI_DIFFERENCE_MINUEND_FLOW=284, PETRI_DIFFERENCE_MINUEND_PLACES=97, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=83, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=75, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=319, PETRI_PLACES=121, PETRI_TRANSITIONS=81} [2022-01-18 22:50:13,443 INFO L334 CegarLoopForPetriNet]: 84 programPoint places, 37 predicate places. [2022-01-18 22:50:13,443 INFO L470 AbstractCegarLoop]: Abstraction has has 121 places, 81 transitions, 319 flow [2022-01-18 22:50:13,443 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 72.125) internal successors, (577), 8 states have internal predecessors, (577), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 22:50:13,443 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-18 22:50:13,443 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 22:50:13,444 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-18 22:50:13,444 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 22:50:13,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 22:50:13,445 INFO L85 PathProgramCache]: Analyzing trace with hash -48822314, now seen corresponding path program 1 times [2022-01-18 22:50:13,445 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 22:50:13,445 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [167205384] [2022-01-18 22:50:13,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 22:50:13,446 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 22:50:13,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 22:50:13,553 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 22:50:13,553 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 22:50:13,553 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [167205384] [2022-01-18 22:50:13,553 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [167205384] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 22:50:13,553 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 22:50:13,553 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-18 22:50:13,554 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1931793502] [2022-01-18 22:50:13,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 22:50:13,554 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-18 22:50:13,554 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 22:50:13,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-18 22:50:13,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-01-18 22:50:13,555 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 92 [2022-01-18 22:50:13,555 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 121 places, 81 transitions, 319 flow. Second operand has 7 states, 7 states have (on average 75.14285714285714) internal successors, (526), 7 states have internal predecessors, (526), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 22:50:13,555 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-18 22:50:13,555 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 92 [2022-01-18 22:50:13,555 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-18 22:50:13,649 INFO L129 PetriNetUnfolder]: 14/221 cut-off events. [2022-01-18 22:50:13,650 INFO L130 PetriNetUnfolder]: For 521/825 co-relation queries the response was YES. [2022-01-18 22:50:13,650 INFO L84 FinitePrefix]: Finished finitePrefix Result has 607 conditions, 221 events. 14/221 cut-off events. For 521/825 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 966 event pairs, 7 based on Foata normal form. 6/215 useless extension candidates. Maximal degree in co-relation 559. Up to 28 conditions per place. [2022-01-18 22:50:13,651 INFO L132 encePairwiseOnDemand]: 83/92 looper letters, 15 selfloop transitions, 6 changer transitions 9/90 dead transitions. [2022-01-18 22:50:13,651 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 119 places, 90 transitions, 450 flow [2022-01-18 22:50:13,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-18 22:50:13,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-01-18 22:50:13,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 539 transitions. [2022-01-18 22:50:13,654 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8369565217391305 [2022-01-18 22:50:13,654 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 539 transitions. [2022-01-18 22:50:13,654 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 539 transitions. [2022-01-18 22:50:13,654 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-18 22:50:13,655 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 539 transitions. [2022-01-18 22:50:13,655 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 77.0) internal successors, (539), 7 states have internal predecessors, (539), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 22:50:13,656 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 92.0) internal successors, (736), 8 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) [2022-01-18 22:50:13,656 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 92.0) internal successors, (736), 8 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) [2022-01-18 22:50:13,656 INFO L186 Difference]: Start difference. First operand has 121 places, 81 transitions, 319 flow. Second operand 7 states and 539 transitions. [2022-01-18 22:50:13,657 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 119 places, 90 transitions, 450 flow [2022-01-18 22:50:13,659 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 104 places, 90 transitions, 378 flow, removed 20 selfloop flow, removed 15 redundant places. [2022-01-18 22:50:13,660 INFO L242 Difference]: Finished difference. Result has 108 places, 79 transitions, 272 flow [2022-01-18 22:50:13,660 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=92, PETRI_DIFFERENCE_MINUEND_FLOW=266, PETRI_DIFFERENCE_MINUEND_PLACES=98, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=81, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=75, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=272, PETRI_PLACES=108, PETRI_TRANSITIONS=79} [2022-01-18 22:50:13,662 INFO L334 CegarLoopForPetriNet]: 84 programPoint places, 24 predicate places. [2022-01-18 22:50:13,662 INFO L470 AbstractCegarLoop]: Abstraction has has 108 places, 79 transitions, 272 flow [2022-01-18 22:50:13,663 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 75.14285714285714) internal successors, (526), 7 states have internal predecessors, (526), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 22:50:13,663 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-18 22:50:13,663 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 22:50:13,663 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-18 22:50:13,663 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 22:50:13,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 22:50:13,664 INFO L85 PathProgramCache]: Analyzing trace with hash 251901706, now seen corresponding path program 2 times [2022-01-18 22:50:13,664 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 22:50:13,664 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [405369612] [2022-01-18 22:50:13,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 22:50:13,664 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 22:50:13,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 22:50:13,738 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 22:50:13,738 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 22:50:13,738 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [405369612] [2022-01-18 22:50:13,738 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [405369612] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 22:50:13,738 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 22:50:13,738 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-18 22:50:13,738 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1250790932] [2022-01-18 22:50:13,738 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 22:50:13,739 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-18 22:50:13,739 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 22:50:13,740 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-18 22:50:13,740 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-18 22:50:13,740 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 92 [2022-01-18 22:50:13,741 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 108 places, 79 transitions, 272 flow. Second operand has 6 states, 6 states have (on average 76.66666666666667) internal successors, (460), 6 states have internal predecessors, (460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 22:50:13,741 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-18 22:50:13,741 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 92 [2022-01-18 22:50:13,741 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-18 22:50:13,858 INFO L129 PetriNetUnfolder]: 367/978 cut-off events. [2022-01-18 22:50:13,858 INFO L130 PetriNetUnfolder]: For 385/404 co-relation queries the response was YES. [2022-01-18 22:50:13,861 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1996 conditions, 978 events. 367/978 cut-off events. For 385/404 co-relation queries the response was YES. Maximal size of possible extension queue 120. Compared 6791 event pairs, 19 based on Foata normal form. 3/913 useless extension candidates. Maximal degree in co-relation 1942. Up to 250 conditions per place. [2022-01-18 22:50:13,863 INFO L132 encePairwiseOnDemand]: 82/92 looper letters, 17 selfloop transitions, 8 changer transitions 21/111 dead transitions. [2022-01-18 22:50:13,863 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 114 places, 111 transitions, 432 flow [2022-01-18 22:50:13,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 22:50:13,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-01-18 22:50:13,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 798 transitions. [2022-01-18 22:50:13,864 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8673913043478261 [2022-01-18 22:50:13,865 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 798 transitions. [2022-01-18 22:50:13,865 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 798 transitions. [2022-01-18 22:50:13,865 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-18 22:50:13,865 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 798 transitions. [2022-01-18 22:50:13,866 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 79.8) internal successors, (798), 10 states have internal predecessors, (798), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 22:50:13,867 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 92.0) internal successors, (1012), 11 states have internal predecessors, (1012), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 22:50:13,868 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 92.0) internal successors, (1012), 11 states have internal predecessors, (1012), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 22:50:13,868 INFO L186 Difference]: Start difference. First operand has 108 places, 79 transitions, 272 flow. Second operand 10 states and 798 transitions. [2022-01-18 22:50:13,868 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 114 places, 111 transitions, 432 flow [2022-01-18 22:50:13,870 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 105 places, 111 transitions, 395 flow, removed 7 selfloop flow, removed 9 redundant places. [2022-01-18 22:50:13,871 INFO L242 Difference]: Finished difference. Result has 112 places, 85 transitions, 311 flow [2022-01-18 22:50:13,871 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=92, PETRI_DIFFERENCE_MINUEND_FLOW=235, PETRI_DIFFERENCE_MINUEND_PLACES=96, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=79, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=311, PETRI_PLACES=112, PETRI_TRANSITIONS=85} [2022-01-18 22:50:13,871 INFO L334 CegarLoopForPetriNet]: 84 programPoint places, 28 predicate places. [2022-01-18 22:50:13,871 INFO L470 AbstractCegarLoop]: Abstraction has has 112 places, 85 transitions, 311 flow [2022-01-18 22:50:13,872 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 76.66666666666667) internal successors, (460), 6 states have internal predecessors, (460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 22:50:13,872 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-18 22:50:13,872 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 22:50:13,872 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-18 22:50:13,872 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 22:50:13,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 22:50:13,872 INFO L85 PathProgramCache]: Analyzing trace with hash 841215303, now seen corresponding path program 1 times [2022-01-18 22:50:13,872 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 22:50:13,873 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [890089940] [2022-01-18 22:50:13,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 22:50:13,873 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 22:50:13,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 22:50:13,921 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 22:50:13,921 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 22:50:13,922 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [890089940] [2022-01-18 22:50:13,922 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [890089940] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 22:50:13,922 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 22:50:13,922 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-18 22:50:13,922 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [609719571] [2022-01-18 22:50:13,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 22:50:13,922 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-18 22:50:13,922 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 22:50:13,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-18 22:50:13,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-01-18 22:50:13,923 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 92 [2022-01-18 22:50:13,923 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 112 places, 85 transitions, 311 flow. Second operand has 7 states, 7 states have (on average 76.57142857142857) internal successors, (536), 7 states have internal predecessors, (536), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 22:50:13,924 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-18 22:50:13,924 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 92 [2022-01-18 22:50:13,924 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-18 22:50:14,052 INFO L129 PetriNetUnfolder]: 188/684 cut-off events. [2022-01-18 22:50:14,052 INFO L130 PetriNetUnfolder]: For 1250/1419 co-relation queries the response was YES. [2022-01-18 22:50:14,054 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2158 conditions, 684 events. 188/684 cut-off events. For 1250/1419 co-relation queries the response was YES. Maximal size of possible extension queue 73. Compared 4502 event pairs, 4 based on Foata normal form. 48/710 useless extension candidates. Maximal degree in co-relation 2104. Up to 270 conditions per place. [2022-01-18 22:50:14,056 INFO L132 encePairwiseOnDemand]: 83/92 looper letters, 17 selfloop transitions, 11 changer transitions 21/114 dead transitions. [2022-01-18 22:50:14,056 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 120 places, 114 transitions, 601 flow [2022-01-18 22:50:14,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-01-18 22:50:14,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-01-18 22:50:14,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 951 transitions. [2022-01-18 22:50:14,058 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8614130434782609 [2022-01-18 22:50:14,058 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 951 transitions. [2022-01-18 22:50:14,058 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 951 transitions. [2022-01-18 22:50:14,058 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-18 22:50:14,058 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 951 transitions. [2022-01-18 22:50:14,059 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 79.25) internal successors, (951), 12 states have internal predecessors, (951), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 22:50:14,061 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 92.0) internal successors, (1196), 13 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) [2022-01-18 22:50:14,061 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 92.0) internal successors, (1196), 13 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) [2022-01-18 22:50:14,061 INFO L186 Difference]: Start difference. First operand has 112 places, 85 transitions, 311 flow. Second operand 12 states and 951 transitions. [2022-01-18 22:50:14,061 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 120 places, 114 transitions, 601 flow [2022-01-18 22:50:14,064 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 116 places, 114 transitions, 588 flow, removed 4 selfloop flow, removed 4 redundant places. [2022-01-18 22:50:14,065 INFO L242 Difference]: Finished difference. Result has 122 places, 88 transitions, 389 flow [2022-01-18 22:50:14,065 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=92, PETRI_DIFFERENCE_MINUEND_FLOW=303, PETRI_DIFFERENCE_MINUEND_PLACES=105, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=85, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=74, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=389, PETRI_PLACES=122, PETRI_TRANSITIONS=88} [2022-01-18 22:50:14,066 INFO L334 CegarLoopForPetriNet]: 84 programPoint places, 38 predicate places. [2022-01-18 22:50:14,066 INFO L470 AbstractCegarLoop]: Abstraction has has 122 places, 88 transitions, 389 flow [2022-01-18 22:50:14,066 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 76.57142857142857) internal successors, (536), 7 states have internal predecessors, (536), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 22:50:14,066 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-18 22:50:14,066 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 22:50:14,066 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-18 22:50:14,067 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 22:50:14,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 22:50:14,067 INFO L85 PathProgramCache]: Analyzing trace with hash -530941800, now seen corresponding path program 1 times [2022-01-18 22:50:14,067 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 22:50:14,067 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [29261460] [2022-01-18 22:50:14,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 22:50:14,067 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 22:50:14,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 22:50:14,119 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 22:50:14,119 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 22:50:14,119 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [29261460] [2022-01-18 22:50:14,119 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [29261460] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 22:50:14,119 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 22:50:14,119 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 22:50:14,120 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1205317810] [2022-01-18 22:50:14,120 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 22:50:14,120 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-18 22:50:14,120 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 22:50:14,120 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-18 22:50:14,120 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-01-18 22:50:14,121 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 92 [2022-01-18 22:50:14,121 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 122 places, 88 transitions, 389 flow. Second operand has 8 states, 8 states have (on average 76.5) internal successors, (612), 8 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) [2022-01-18 22:50:14,121 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-18 22:50:14,121 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 92 [2022-01-18 22:50:14,121 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-18 22:50:14,255 INFO L129 PetriNetUnfolder]: 73/405 cut-off events. [2022-01-18 22:50:14,255 INFO L130 PetriNetUnfolder]: For 1779/2005 co-relation queries the response was YES. [2022-01-18 22:50:14,257 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1485 conditions, 405 events. 73/405 cut-off events. For 1779/2005 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 2344 event pairs, 0 based on Foata normal form. 56/445 useless extension candidates. Maximal degree in co-relation 1426. Up to 132 conditions per place. [2022-01-18 22:50:14,258 INFO L132 encePairwiseOnDemand]: 83/92 looper letters, 11 selfloop transitions, 14 changer transitions 15/105 dead transitions. [2022-01-18 22:50:14,258 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 130 places, 105 transitions, 615 flow [2022-01-18 22:50:14,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-01-18 22:50:14,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-01-18 22:50:14,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1017 transitions. [2022-01-18 22:50:14,260 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8503344481605352 [2022-01-18 22:50:14,260 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1017 transitions. [2022-01-18 22:50:14,260 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1017 transitions. [2022-01-18 22:50:14,260 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-18 22:50:14,260 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1017 transitions. [2022-01-18 22:50:14,262 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 78.23076923076923) internal successors, (1017), 13 states have internal predecessors, (1017), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 22:50:14,263 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 92.0) internal successors, (1288), 14 states have internal predecessors, (1288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 22:50:14,263 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 92.0) internal successors, (1288), 14 states have internal predecessors, (1288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 22:50:14,263 INFO L186 Difference]: Start difference. First operand has 122 places, 88 transitions, 389 flow. Second operand 13 states and 1017 transitions. [2022-01-18 22:50:14,263 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 130 places, 105 transitions, 615 flow [2022-01-18 22:50:14,267 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 115 places, 105 transitions, 496 flow, removed 46 selfloop flow, removed 15 redundant places. [2022-01-18 22:50:14,268 INFO L242 Difference]: Finished difference. Result has 121 places, 88 transitions, 359 flow [2022-01-18 22:50:14,268 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=92, PETRI_DIFFERENCE_MINUEND_FLOW=309, PETRI_DIFFERENCE_MINUEND_PLACES=103, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=88, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=74, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=359, PETRI_PLACES=121, PETRI_TRANSITIONS=88} [2022-01-18 22:50:14,269 INFO L334 CegarLoopForPetriNet]: 84 programPoint places, 37 predicate places. [2022-01-18 22:50:14,270 INFO L470 AbstractCegarLoop]: Abstraction has has 121 places, 88 transitions, 359 flow [2022-01-18 22:50:14,270 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 76.5) internal successors, (612), 8 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) [2022-01-18 22:50:14,270 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-18 22:50:14,270 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 22:50:14,270 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-18 22:50:14,270 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 22:50:14,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 22:50:14,271 INFO L85 PathProgramCache]: Analyzing trace with hash 1911398665, now seen corresponding path program 1 times [2022-01-18 22:50:14,271 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 22:50:14,271 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [62810330] [2022-01-18 22:50:14,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 22:50:14,271 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 22:50:14,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 22:50:14,349 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 22:50:14,349 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 22:50:14,349 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [62810330] [2022-01-18 22:50:14,350 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [62810330] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 22:50:14,350 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 22:50:14,350 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-18 22:50:14,350 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1595845977] [2022-01-18 22:50:14,350 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 22:50:14,350 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-18 22:50:14,350 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 22:50:14,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-18 22:50:14,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-01-18 22:50:14,351 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 92 [2022-01-18 22:50:14,351 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 121 places, 88 transitions, 359 flow. Second operand has 7 states, 7 states have (on average 72.57142857142857) internal successors, (508), 7 states have internal predecessors, (508), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 22:50:14,351 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-18 22:50:14,351 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 92 [2022-01-18 22:50:14,352 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-18 22:50:14,439 INFO L129 PetriNetUnfolder]: 40/291 cut-off events. [2022-01-18 22:50:14,439 INFO L130 PetriNetUnfolder]: For 478/510 co-relation queries the response was YES. [2022-01-18 22:50:14,440 INFO L84 FinitePrefix]: Finished finitePrefix Result has 777 conditions, 291 events. 40/291 cut-off events. For 478/510 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 1414 event pairs, 0 based on Foata normal form. 3/277 useless extension candidates. Maximal degree in co-relation 721. Up to 60 conditions per place. [2022-01-18 22:50:14,440 INFO L132 encePairwiseOnDemand]: 84/92 looper letters, 16 selfloop transitions, 3 changer transitions 15/95 dead transitions. [2022-01-18 22:50:14,440 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 123 places, 95 transitions, 441 flow [2022-01-18 22:50:14,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-18 22:50:14,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-01-18 22:50:14,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 520 transitions. [2022-01-18 22:50:14,442 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8074534161490683 [2022-01-18 22:50:14,442 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 520 transitions. [2022-01-18 22:50:14,442 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 520 transitions. [2022-01-18 22:50:14,442 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-18 22:50:14,442 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 520 transitions. [2022-01-18 22:50:14,443 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 74.28571428571429) internal successors, (520), 7 states have internal predecessors, (520), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 22:50:14,444 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 92.0) internal successors, (736), 8 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) [2022-01-18 22:50:14,444 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 92.0) internal successors, (736), 8 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) [2022-01-18 22:50:14,444 INFO L186 Difference]: Start difference. First operand has 121 places, 88 transitions, 359 flow. Second operand 7 states and 520 transitions. [2022-01-18 22:50:14,444 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 123 places, 95 transitions, 441 flow [2022-01-18 22:50:14,446 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 110 places, 95 transitions, 366 flow, removed 19 selfloop flow, removed 13 redundant places. [2022-01-18 22:50:14,447 INFO L242 Difference]: Finished difference. Result has 114 places, 79 transitions, 246 flow [2022-01-18 22:50:14,447 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=92, PETRI_DIFFERENCE_MINUEND_FLOW=284, PETRI_DIFFERENCE_MINUEND_PLACES=104, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=88, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=85, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=246, PETRI_PLACES=114, PETRI_TRANSITIONS=79} [2022-01-18 22:50:14,447 INFO L334 CegarLoopForPetriNet]: 84 programPoint places, 30 predicate places. [2022-01-18 22:50:14,447 INFO L470 AbstractCegarLoop]: Abstraction has has 114 places, 79 transitions, 246 flow [2022-01-18 22:50:14,448 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 72.57142857142857) internal successors, (508), 7 states have internal predecessors, (508), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 22:50:14,448 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-18 22:50:14,448 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 22:50:14,448 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-18 22:50:14,448 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 22:50:14,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 22:50:14,448 INFO L85 PathProgramCache]: Analyzing trace with hash -1400136911, now seen corresponding path program 2 times [2022-01-18 22:50:14,448 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 22:50:14,448 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [669744237] [2022-01-18 22:50:14,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 22:50:14,449 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 22:50:14,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 22:50:14,494 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 22:50:14,495 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 22:50:14,495 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [669744237] [2022-01-18 22:50:14,495 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [669744237] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 22:50:14,495 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 22:50:14,495 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-18 22:50:14,495 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1431114791] [2022-01-18 22:50:14,495 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 22:50:14,495 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-18 22:50:14,495 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 22:50:14,496 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-18 22:50:14,496 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-01-18 22:50:14,496 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 92 [2022-01-18 22:50:14,497 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 114 places, 79 transitions, 246 flow. Second operand has 7 states, 7 states have (on average 76.85714285714286) internal successors, (538), 7 states have internal predecessors, (538), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 22:50:14,497 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-18 22:50:14,497 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 92 [2022-01-18 22:50:14,497 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-18 22:50:14,544 INFO L129 PetriNetUnfolder]: 6/93 cut-off events. [2022-01-18 22:50:14,544 INFO L130 PetriNetUnfolder]: For 22/22 co-relation queries the response was YES. [2022-01-18 22:50:14,544 INFO L84 FinitePrefix]: Finished finitePrefix Result has 173 conditions, 93 events. 6/93 cut-off events. For 22/22 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 88 event pairs, 0 based on Foata normal form. 1/93 useless extension candidates. Maximal degree in co-relation 158. Up to 7 conditions per place. [2022-01-18 22:50:14,545 INFO L132 encePairwiseOnDemand]: 86/92 looper letters, 0 selfloop transitions, 0 changer transitions 78/78 dead transitions. [2022-01-18 22:50:14,545 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 78 transitions, 270 flow [2022-01-18 22:50:14,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-18 22:50:14,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-01-18 22:50:14,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 539 transitions. [2022-01-18 22:50:14,546 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8369565217391305 [2022-01-18 22:50:14,546 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 539 transitions. [2022-01-18 22:50:14,546 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 539 transitions. [2022-01-18 22:50:14,546 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-18 22:50:14,546 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 539 transitions. [2022-01-18 22:50:14,547 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 77.0) internal successors, (539), 7 states have internal predecessors, (539), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 22:50:14,548 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 92.0) internal successors, (736), 8 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) [2022-01-18 22:50:14,548 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 92.0) internal successors, (736), 8 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) [2022-01-18 22:50:14,548 INFO L186 Difference]: Start difference. First operand has 114 places, 79 transitions, 246 flow. Second operand 7 states and 539 transitions. [2022-01-18 22:50:14,548 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 109 places, 78 transitions, 270 flow [2022-01-18 22:50:14,549 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 78 transitions, 221 flow, removed 12 selfloop flow, removed 16 redundant places. [2022-01-18 22:50:14,549 INFO L242 Difference]: Finished difference. Result has 93 places, 0 transitions, 0 flow [2022-01-18 22:50:14,549 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=92, PETRI_DIFFERENCE_MINUEND_FLOW=191, PETRI_DIFFERENCE_MINUEND_PLACES=87, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=77, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=77, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=0, PETRI_PLACES=93, PETRI_TRANSITIONS=0} [2022-01-18 22:50:14,550 INFO L334 CegarLoopForPetriNet]: 84 programPoint places, 9 predicate places. [2022-01-18 22:50:14,550 INFO L470 AbstractCegarLoop]: Abstraction has has 93 places, 0 transitions, 0 flow [2022-01-18 22:50:14,550 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 76.85714285714286) internal successors, (538), 7 states have internal predecessors, (538), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 22:50:14,552 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2022-01-18 22:50:14,552 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION (2 of 4 remaining) [2022-01-18 22:50:14,552 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION (1 of 4 remaining) [2022-01-18 22:50:14,552 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATION (0 of 4 remaining) [2022-01-18 22:50:14,552 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-01-18 22:50:14,554 INFO L732 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1, 1, 1, 1] [2022-01-18 22:50:14,556 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-01-18 22:50:14,556 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-01-18 22:50:14,558 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.01 10:50:14 BasicIcfg [2022-01-18 22:50:14,558 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-18 22:50:14,558 INFO L158 Benchmark]: Toolchain (without parser) took 3473.14ms. Allocated memory was 373.3MB in the beginning and 453.0MB in the end (delta: 79.7MB). Free memory was 320.5MB in the beginning and 386.6MB in the end (delta: -66.2MB). Peak memory consumption was 15.2MB. Max. memory is 16.0GB. [2022-01-18 22:50:14,558 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 373.3MB. Free memory is still 338.2MB. There was no memory consumed. Max. memory is 16.0GB. [2022-01-18 22:50:14,558 INFO L158 Benchmark]: CACSL2BoogieTranslator took 289.49ms. Allocated memory is still 373.3MB. Free memory was 320.3MB in the beginning and 337.5MB in the end (delta: -17.2MB). Peak memory consumption was 15.2MB. Max. memory is 16.0GB. [2022-01-18 22:50:14,558 INFO L158 Benchmark]: Boogie Procedure Inliner took 48.81ms. Allocated memory is still 373.3MB. Free memory was 337.5MB in the beginning and 335.5MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2022-01-18 22:50:14,559 INFO L158 Benchmark]: Boogie Preprocessor took 24.56ms. Allocated memory is still 373.3MB. Free memory was 335.5MB in the beginning and 334.7MB in the end (delta: 823.3kB). There was no memory consumed. Max. memory is 16.0GB. [2022-01-18 22:50:14,559 INFO L158 Benchmark]: RCFGBuilder took 272.38ms. Allocated memory is still 373.3MB. Free memory was 334.3MB in the beginning and 321.7MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. [2022-01-18 22:50:14,559 INFO L158 Benchmark]: TraceAbstraction took 2834.24ms. Allocated memory was 373.3MB in the beginning and 453.0MB in the end (delta: 79.7MB). Free memory was 320.9MB in the beginning and 386.6MB in the end (delta: -65.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. [2022-01-18 22:50:14,560 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 373.3MB. Free memory is still 338.2MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 289.49ms. Allocated memory is still 373.3MB. Free memory was 320.3MB in the beginning and 337.5MB in the end (delta: -17.2MB). Peak memory consumption was 15.2MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 48.81ms. Allocated memory is still 373.3MB. Free memory was 337.5MB in the beginning and 335.5MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 24.56ms. Allocated memory is still 373.3MB. Free memory was 335.5MB in the beginning and 334.7MB in the end (delta: 823.3kB). There was no memory consumed. Max. memory is 16.0GB. * RCFGBuilder took 272.38ms. Allocated memory is still 373.3MB. Free memory was 334.3MB in the beginning and 321.7MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. * TraceAbstraction took 2834.24ms. Allocated memory was 373.3MB in the beginning and 453.0MB in the end (delta: 79.7MB). Free memory was 320.9MB in the beginning and 386.6MB in the end (delta: -65.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 115 locations, 4 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 2.8s, OverallIterations: 10, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 1.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 370 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 370 mSDsluCounter, 536 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 545 mSDsCounter, 99 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 577 IncrementalHoareTripleChecker+Invalid, 676 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 99 mSolverCounterUnsat, 124 mSDtfsCounter, 577 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 133 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 113 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 145 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=389occurred in iteration=7, InterpolantAutomatonStates: 103, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 624 NumberOfCodeBlocks, 624 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 614 ConstructedInterpolants, 0 QuantifiedInterpolants, 2346 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-01-18 22:50:14,599 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...