/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/safe006_pso.oepc_pso.opt_tso.oepc_tso.opt-thin000_pso.oepc_pso.opt_tso.oepc_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-bf34d27 [2022-01-18 22:50:16,954 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-18 22:50:16,956 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-18 22:50:17,018 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-18 22:50:17,019 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-18 22:50:17,022 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-18 22:50:17,023 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-18 22:50:17,025 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-18 22:50:17,026 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-18 22:50:17,026 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-18 22:50:17,027 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-18 22:50:17,028 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-18 22:50:17,029 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-18 22:50:17,029 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-18 22:50:17,030 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-18 22:50:17,031 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-18 22:50:17,032 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-18 22:50:17,033 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-18 22:50:17,034 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-18 22:50:17,038 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-18 22:50:17,039 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-18 22:50:17,042 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-18 22:50:17,043 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-18 22:50:17,044 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-18 22:50:17,046 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-18 22:50:17,046 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-18 22:50:17,047 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-18 22:50:17,047 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-18 22:50:17,048 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-18 22:50:17,048 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-18 22:50:17,049 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-18 22:50:17,049 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-18 22:50:17,050 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-18 22:50:17,050 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-18 22:50:17,051 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-18 22:50:17,051 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-18 22:50:17,052 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-18 22:50:17,052 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-18 22:50:17,052 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-18 22:50:17,053 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-18 22:50:17,054 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-18 22:50:17,057 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 22:50:17,082 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-18 22:50:17,082 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-18 22:50:17,083 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-01-18 22:50:17,084 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-01-18 22:50:17,084 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-18 22:50:17,084 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-18 22:50:17,084 INFO L138 SettingsManager]: * Use SBE=true [2022-01-18 22:50:17,084 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-18 22:50:17,084 INFO L138 SettingsManager]: * sizeof long=4 [2022-01-18 22:50:17,085 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-18 22:50:17,085 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-01-18 22:50:17,085 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-18 22:50:17,085 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-18 22:50:17,086 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-18 22:50:17,086 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-18 22:50:17,086 INFO L138 SettingsManager]: * sizeof long double=12 [2022-01-18 22:50:17,086 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-18 22:50:17,086 INFO L138 SettingsManager]: * Use constant arrays=true [2022-01-18 22:50:17,086 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-18 22:50:17,086 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-18 22:50:17,086 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-18 22:50:17,086 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-01-18 22:50:17,087 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-18 22:50:17,087 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-18 22:50:17,087 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-18 22:50:17,087 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-18 22:50:17,087 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-18 22:50:17,088 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-18 22:50:17,088 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-18 22:50:17,088 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-18 22:50:17,088 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-18 22:50:17,089 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-01-18 22:50:17,318 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-18 22:50:17,333 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-18 22:50:17,335 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-18 22:50:17,336 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-18 22:50:17,337 INFO L275 PluginConnector]: CDTParser initialized [2022-01-18 22:50:17,338 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe006_pso.oepc_pso.opt_tso.oepc_tso.opt-thin000_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2022-01-18 22:50:17,406 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5855b9d2e/f7a3a35ce645440589ea70b7690a276f/FLAG5622b51b3 [2022-01-18 22:50:17,890 INFO L306 CDTParser]: Found 1 translation units. [2022-01-18 22:50:17,891 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe006_pso.oepc_pso.opt_tso.oepc_tso.opt-thin000_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2022-01-18 22:50:17,923 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5855b9d2e/f7a3a35ce645440589ea70b7690a276f/FLAG5622b51b3 [2022-01-18 22:50:18,411 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5855b9d2e/f7a3a35ce645440589ea70b7690a276f [2022-01-18 22:50:18,413 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-18 22:50:18,414 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-01-18 22:50:18,416 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-18 22:50:18,416 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-18 22:50:18,418 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-18 22:50:18,419 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.01 10:50:18" (1/1) ... [2022-01-18 22:50:18,420 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4fc4bc2f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 10:50:18, skipping insertion in model container [2022-01-18 22:50:18,420 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.01 10:50:18" (1/1) ... [2022-01-18 22:50:18,430 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-18 22:50:18,468 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-18 22:50:18,626 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/safe006_pso.oepc_pso.opt_tso.oepc_tso.opt-thin000_pso.oepc_pso.opt_tso.oepc_tso.opt.i[1017,1030] [2022-01-18 22:50:18,738 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-18 22:50:18,748 INFO L203 MainTranslator]: Completed pre-run [2022-01-18 22:50:18,765 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/safe006_pso.oepc_pso.opt_tso.oepc_tso.opt-thin000_pso.oepc_pso.opt_tso.oepc_tso.opt.i[1017,1030] [2022-01-18 22:50:18,803 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-18 22:50:18,840 INFO L208 MainTranslator]: Completed translation [2022-01-18 22:50:18,840 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 10:50:18 WrapperNode [2022-01-18 22:50:18,841 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-18 22:50:18,842 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-18 22:50:18,842 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-18 22:50:18,842 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-18 22:50:18,848 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 10:50:18" (1/1) ... [2022-01-18 22:50:18,875 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 10:50:18" (1/1) ... [2022-01-18 22:50:18,892 INFO L137 Inliner]: procedures = 175, calls = 40, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 59 [2022-01-18 22:50:18,892 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-18 22:50:18,894 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-18 22:50:18,894 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-18 22:50:18,894 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-18 22:50:18,900 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 10:50:18" (1/1) ... [2022-01-18 22:50:18,900 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 10:50:18" (1/1) ... [2022-01-18 22:50:18,905 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 10:50:18" (1/1) ... [2022-01-18 22:50:18,905 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 10:50:18" (1/1) ... [2022-01-18 22:50:18,912 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 10:50:18" (1/1) ... [2022-01-18 22:50:18,916 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 10:50:18" (1/1) ... [2022-01-18 22:50:18,917 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 10:50:18" (1/1) ... [2022-01-18 22:50:18,919 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-18 22:50:18,920 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-18 22:50:18,920 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-18 22:50:18,920 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-18 22:50:18,921 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 10:50:18" (1/1) ... [2022-01-18 22:50:18,930 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-18 22:50:18,938 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 22:50:18,947 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 22:50:18,959 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 22:50:18,978 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-01-18 22:50:18,978 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-01-18 22:50:18,978 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-18 22:50:18,978 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-01-18 22:50:18,978 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-18 22:50:18,978 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-01-18 22:50:18,978 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-01-18 22:50:18,979 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-01-18 22:50:18,979 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-01-18 22:50:18,979 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-01-18 22:50:18,979 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-01-18 22:50:18,979 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-18 22:50:18,979 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-18 22:50:18,980 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 22:50:19,066 INFO L234 CfgBuilder]: Building ICFG [2022-01-18 22:50:19,068 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-18 22:50:19,230 INFO L275 CfgBuilder]: Performing block encoding [2022-01-18 22:50:19,235 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-18 22:50:19,235 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-01-18 22:50:19,237 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.01 10:50:19 BoogieIcfgContainer [2022-01-18 22:50:19,237 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-18 22:50:19,238 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-18 22:50:19,238 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-18 22:50:19,240 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-18 22:50:19,240 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.01 10:50:18" (1/3) ... [2022-01-18 22:50:19,241 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7459f618 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.01 10:50:19, skipping insertion in model container [2022-01-18 22:50:19,241 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 10:50:18" (2/3) ... [2022-01-18 22:50:19,241 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7459f618 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.01 10:50:19, skipping insertion in model container [2022-01-18 22:50:19,241 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.01 10:50:19" (3/3) ... [2022-01-18 22:50:19,242 INFO L111 eAbstractionObserver]: Analyzing ICFG safe006_pso.oepc_pso.opt_tso.oepc_tso.opt-thin000_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2022-01-18 22:50:19,246 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-18 22:50:19,246 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-18 22:50:19,246 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-01-18 22:50:19,273 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:50:19,273 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:50:19,273 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:50:19,273 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:50:19,274 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:50:19,274 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:50:19,274 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:50:19,274 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:50:19,274 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:50:19,275 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:50:19,275 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:50:19,275 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:50:19,275 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:50:19,275 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:50:19,276 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:50:19,276 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:50:19,276 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:50:19,276 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:50:19,276 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:50:19,276 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:50:19,277 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:50:19,277 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:50:19,277 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:50:19,277 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:50:19,280 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:50:19,280 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:50:19,280 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:50:19,280 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:50:19,282 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:50:19,283 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:50:19,283 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:50:19,283 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:50:19,284 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-01-18 22:50:19,323 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-18 22:50:19,329 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 22:50:19,329 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-01-18 22:50:19,346 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 80 places, 75 transitions, 160 flow [2022-01-18 22:50:19,399 INFO L129 PetriNetUnfolder]: 2/73 cut-off events. [2022-01-18 22:50:19,399 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-01-18 22:50:19,402 INFO L84 FinitePrefix]: Finished finitePrefix Result has 80 conditions, 73 events. 2/73 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 35 event pairs, 0 based on Foata normal form. 0/70 useless extension candidates. Maximal degree in co-relation 51. Up to 2 conditions per place. [2022-01-18 22:50:19,403 INFO L82 GeneralOperation]: Start removeDead. Operand has 80 places, 75 transitions, 160 flow [2022-01-18 22:50:19,408 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 67 places, 61 transitions, 128 flow [2022-01-18 22:50:19,430 INFO L129 PetriNetUnfolder]: 1/60 cut-off events. [2022-01-18 22:50:19,430 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-01-18 22:50:19,431 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-18 22:50:19,431 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] [2022-01-18 22:50:19,432 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 22:50:19,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 22:50:19,437 INFO L85 PathProgramCache]: Analyzing trace with hash 899280188, now seen corresponding path program 1 times [2022-01-18 22:50:19,444 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 22:50:19,445 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [686454817] [2022-01-18 22:50:19,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 22:50:19,446 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 22:50:19,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 22:50:19,803 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 22:50:19,804 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 22:50:19,805 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [686454817] [2022-01-18 22:50:19,805 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [686454817] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 22:50:19,805 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 22:50:19,806 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-18 22:50:19,807 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [664341198] [2022-01-18 22:50:19,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 22:50:19,816 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-18 22:50:19,817 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 22:50:19,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-18 22:50:19,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-01-18 22:50:19,868 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 59 out of 75 [2022-01-18 22:50:19,875 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 61 transitions, 128 flow. Second operand has 7 states, 7 states have (on average 60.42857142857143) internal successors, (423), 7 states have internal predecessors, (423), 0 states have call successors, (0), 0 states 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 22:50:19,875 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-18 22:50:19,875 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 59 of 75 [2022-01-18 22:50:19,876 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-18 22:50:20,078 INFO L129 PetriNetUnfolder]: 21/138 cut-off events. [2022-01-18 22:50:20,079 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-01-18 22:50:20,079 INFO L84 FinitePrefix]: Finished finitePrefix Result has 204 conditions, 138 events. 21/138 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 371 event pairs, 5 based on Foata normal form. 6/140 useless extension candidates. Maximal degree in co-relation 170. Up to 21 conditions per place. [2022-01-18 22:50:20,082 INFO L132 encePairwiseOnDemand]: 68/75 looper letters, 12 selfloop transitions, 2 changer transitions 16/78 dead transitions. [2022-01-18 22:50:20,083 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 78 transitions, 225 flow [2022-01-18 22:50:20,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-18 22:50:20,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-01-18 22:50:20,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 565 transitions. [2022-01-18 22:50:20,105 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.837037037037037 [2022-01-18 22:50:20,106 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 565 transitions. [2022-01-18 22:50:20,107 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 565 transitions. [2022-01-18 22:50:20,111 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-18 22:50:20,113 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 565 transitions. [2022-01-18 22:50:20,117 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 62.77777777777778) internal successors, (565), 9 states have internal predecessors, (565), 0 states have call successors, (0), 0 states 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 22:50:20,124 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 75.0) internal successors, (750), 10 states have internal predecessors, (750), 0 states have call successors, (0), 0 states 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 22:50:20,124 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 75.0) internal successors, (750), 10 states have internal predecessors, (750), 0 states have call successors, (0), 0 states 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 22:50:20,126 INFO L186 Difference]: Start difference. First operand has 67 places, 61 transitions, 128 flow. Second operand 9 states and 565 transitions. [2022-01-18 22:50:20,127 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 78 transitions, 225 flow [2022-01-18 22:50:20,130 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 78 transitions, 222 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-01-18 22:50:20,133 INFO L242 Difference]: Finished difference. Result has 80 places, 60 transitions, 144 flow [2022-01-18 22:50:20,135 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=75, PETRI_DIFFERENCE_MINUEND_FLOW=124, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=144, PETRI_PLACES=80, PETRI_TRANSITIONS=60} [2022-01-18 22:50:20,139 INFO L334 CegarLoopForPetriNet]: 67 programPoint places, 13 predicate places. [2022-01-18 22:50:20,140 INFO L470 AbstractCegarLoop]: Abstraction has has 80 places, 60 transitions, 144 flow [2022-01-18 22:50:20,144 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 60.42857142857143) internal successors, (423), 7 states have internal predecessors, (423), 0 states have call successors, (0), 0 states 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 22:50:20,144 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-18 22:50:20,144 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] [2022-01-18 22:50:20,145 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-18 22:50:20,145 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 22:50:20,145 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 22:50:20,145 INFO L85 PathProgramCache]: Analyzing trace with hash 1674778395, now seen corresponding path program 1 times [2022-01-18 22:50:20,146 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 22:50:20,146 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1627661141] [2022-01-18 22:50:20,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 22:50:20,146 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 22:50:20,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 22:50:20,323 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 22:50:20,323 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 22:50:20,323 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1627661141] [2022-01-18 22:50:20,323 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1627661141] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 22:50:20,324 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 22:50:20,324 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-18 22:50:20,324 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1267733759] [2022-01-18 22:50:20,324 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 22:50:20,325 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-18 22:50:20,325 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 22:50:20,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-18 22:50:20,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-01-18 22:50:20,327 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 57 out of 75 [2022-01-18 22:50:20,328 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 60 transitions, 144 flow. Second operand has 7 states, 7 states have (on average 58.714285714285715) internal successors, (411), 7 states have internal predecessors, (411), 0 states have call successors, (0), 0 states 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 22:50:20,328 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-18 22:50:20,328 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 57 of 75 [2022-01-18 22:50:20,329 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-18 22:50:20,612 INFO L129 PetriNetUnfolder]: 17/148 cut-off events. [2022-01-18 22:50:20,612 INFO L130 PetriNetUnfolder]: For 53/64 co-relation queries the response was YES. [2022-01-18 22:50:20,613 INFO L84 FinitePrefix]: Finished finitePrefix Result has 271 conditions, 148 events. 17/148 cut-off events. For 53/64 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 454 event pairs, 1 based on Foata normal form. 5/150 useless extension candidates. Maximal degree in co-relation 247. Up to 16 conditions per place. [2022-01-18 22:50:20,614 INFO L132 encePairwiseOnDemand]: 66/75 looper letters, 16 selfloop transitions, 4 changer transitions 25/91 dead transitions. [2022-01-18 22:50:20,614 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 91 transitions, 352 flow [2022-01-18 22:50:20,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-18 22:50:20,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2022-01-18 22:50:20,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 1018 transitions. [2022-01-18 22:50:20,618 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7984313725490196 [2022-01-18 22:50:20,618 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 1018 transitions. [2022-01-18 22:50:20,618 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 1018 transitions. [2022-01-18 22:50:20,619 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-18 22:50:20,619 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 1018 transitions. [2022-01-18 22:50:20,622 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 59.88235294117647) internal successors, (1018), 17 states have internal predecessors, (1018), 0 states have call successors, (0), 0 states 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 22:50:20,625 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 75.0) internal successors, (1350), 18 states have internal predecessors, (1350), 0 states have call successors, (0), 0 states 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 22:50:20,625 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 75.0) internal successors, (1350), 18 states have internal predecessors, (1350), 0 states have call successors, (0), 0 states 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 22:50:20,625 INFO L186 Difference]: Start difference. First operand has 80 places, 60 transitions, 144 flow. Second operand 17 states and 1018 transitions. [2022-01-18 22:50:20,626 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 91 transitions, 352 flow [2022-01-18 22:50:20,630 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 91 transitions, 288 flow, removed 28 selfloop flow, removed 8 redundant places. [2022-01-18 22:50:20,632 INFO L242 Difference]: Finished difference. Result has 97 places, 60 transitions, 172 flow [2022-01-18 22:50:20,632 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=75, PETRI_DIFFERENCE_MINUEND_FLOW=128, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=172, PETRI_PLACES=97, PETRI_TRANSITIONS=60} [2022-01-18 22:50:20,633 INFO L334 CegarLoopForPetriNet]: 67 programPoint places, 30 predicate places. [2022-01-18 22:50:20,633 INFO L470 AbstractCegarLoop]: Abstraction has has 97 places, 60 transitions, 172 flow [2022-01-18 22:50:20,634 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 58.714285714285715) internal successors, (411), 7 states have internal predecessors, (411), 0 states have call successors, (0), 0 states 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 22:50:20,634 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-18 22:50:20,635 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] [2022-01-18 22:50:20,635 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-18 22:50:20,635 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 22:50:20,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 22:50:20,636 INFO L85 PathProgramCache]: Analyzing trace with hash -111142662, now seen corresponding path program 1 times [2022-01-18 22:50:20,636 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 22:50:20,636 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [662886835] [2022-01-18 22:50:20,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 22:50:20,637 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 22:50:20,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 22:50:20,804 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 22:50:20,805 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 22:50:20,806 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [662886835] [2022-01-18 22:50:20,806 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [662886835] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 22:50:20,806 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 22:50:20,806 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 22:50:20,807 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [682267137] [2022-01-18 22:50:20,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 22:50:20,808 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-18 22:50:20,808 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 22:50:20,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-18 22:50:20,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-01-18 22:50:20,810 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 57 out of 75 [2022-01-18 22:50:20,810 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 97 places, 60 transitions, 172 flow. Second operand has 8 states, 8 states have (on average 58.625) internal successors, (469), 8 states have internal predecessors, (469), 0 states have call successors, (0), 0 states 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 22:50:20,810 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-18 22:50:20,811 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 57 of 75 [2022-01-18 22:50:20,811 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-18 22:50:20,959 INFO L129 PetriNetUnfolder]: 5/90 cut-off events. [2022-01-18 22:50:20,960 INFO L130 PetriNetUnfolder]: For 109/124 co-relation queries the response was YES. [2022-01-18 22:50:20,960 INFO L84 FinitePrefix]: Finished finitePrefix Result has 208 conditions, 90 events. 5/90 cut-off events. For 109/124 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 132 event pairs, 1 based on Foata normal form. 2/90 useless extension candidates. Maximal degree in co-relation 182. Up to 10 conditions per place. [2022-01-18 22:50:20,961 INFO L132 encePairwiseOnDemand]: 67/75 looper letters, 10 selfloop transitions, 4 changer transitions 13/72 dead transitions. [2022-01-18 22:50:20,961 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 72 transitions, 304 flow [2022-01-18 22:50:20,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 22:50:20,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-01-18 22:50:20,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 598 transitions. [2022-01-18 22:50:20,963 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7973333333333333 [2022-01-18 22:50:20,963 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 598 transitions. [2022-01-18 22:50:20,963 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 598 transitions. [2022-01-18 22:50:20,964 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-18 22:50:20,964 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 598 transitions. [2022-01-18 22:50:20,966 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 59.8) internal successors, (598), 10 states have internal predecessors, (598), 0 states have call successors, (0), 0 states 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 22:50:20,967 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 75.0) internal successors, (825), 11 states have internal predecessors, (825), 0 states have call successors, (0), 0 states 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 22:50:20,968 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 75.0) internal successors, (825), 11 states have internal predecessors, (825), 0 states have call successors, (0), 0 states 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 22:50:20,968 INFO L186 Difference]: Start difference. First operand has 97 places, 60 transitions, 172 flow. Second operand 10 states and 598 transitions. [2022-01-18 22:50:20,968 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 94 places, 72 transitions, 304 flow [2022-01-18 22:50:20,970 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 72 transitions, 226 flow, removed 31 selfloop flow, removed 17 redundant places. [2022-01-18 22:50:20,972 INFO L242 Difference]: Finished difference. Result has 85 places, 59 transitions, 164 flow [2022-01-18 22:50:20,972 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=75, PETRI_DIFFERENCE_MINUEND_FLOW=136, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=164, PETRI_PLACES=85, PETRI_TRANSITIONS=59} [2022-01-18 22:50:20,973 INFO L334 CegarLoopForPetriNet]: 67 programPoint places, 18 predicate places. [2022-01-18 22:50:20,973 INFO L470 AbstractCegarLoop]: Abstraction has has 85 places, 59 transitions, 164 flow [2022-01-18 22:50:20,973 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 58.625) internal successors, (469), 8 states have internal predecessors, (469), 0 states have call successors, (0), 0 states 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 22:50:20,973 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-18 22:50:20,973 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] [2022-01-18 22:50:20,974 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-18 22:50:20,974 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 22:50:20,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 22:50:20,975 INFO L85 PathProgramCache]: Analyzing trace with hash 928862734, now seen corresponding path program 1 times [2022-01-18 22:50:20,975 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 22:50:20,975 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [441932656] [2022-01-18 22:50:20,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 22:50:20,975 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 22:50:21,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 22:50:21,104 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 22:50:21,104 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 22:50:21,104 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [441932656] [2022-01-18 22:50:21,105 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [441932656] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 22:50:21,105 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 22:50:21,105 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 22:50:21,105 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [587868235] [2022-01-18 22:50:21,105 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 22:50:21,106 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-18 22:50:21,106 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 22:50:21,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-18 22:50:21,107 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-01-18 22:50:21,108 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 57 out of 75 [2022-01-18 22:50:21,108 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 places, 59 transitions, 164 flow. Second operand has 8 states, 8 states have (on average 58.625) internal successors, (469), 8 states have internal predecessors, (469), 0 states have call successors, (0), 0 states 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 22:50:21,108 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-18 22:50:21,109 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 57 of 75 [2022-01-18 22:50:21,109 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-18 22:50:21,245 INFO L129 PetriNetUnfolder]: 4/66 cut-off events. [2022-01-18 22:50:21,245 INFO L130 PetriNetUnfolder]: For 44/50 co-relation queries the response was YES. [2022-01-18 22:50:21,246 INFO L84 FinitePrefix]: Finished finitePrefix Result has 132 conditions, 66 events. 4/66 cut-off events. For 44/50 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 42 event pairs, 0 based on Foata normal form. 2/68 useless extension candidates. Maximal degree in co-relation 118. Up to 5 conditions per place. [2022-01-18 22:50:21,248 INFO L132 encePairwiseOnDemand]: 67/75 looper letters, 0 selfloop transitions, 0 changer transitions 64/64 dead transitions. [2022-01-18 22:50:21,248 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 64 transitions, 226 flow [2022-01-18 22:50:21,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-18 22:50:21,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-01-18 22:50:21,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 649 transitions. [2022-01-18 22:50:21,251 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7866666666666666 [2022-01-18 22:50:21,251 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 649 transitions. [2022-01-18 22:50:21,251 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 649 transitions. [2022-01-18 22:50:21,251 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-18 22:50:21,252 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 649 transitions. [2022-01-18 22:50:21,253 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 59.0) internal successors, (649), 11 states have internal predecessors, (649), 0 states have call successors, (0), 0 states 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 22:50:21,255 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 75.0) internal successors, (900), 12 states have internal predecessors, (900), 0 states have call successors, (0), 0 states 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 22:50:21,255 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 75.0) internal successors, (900), 12 states have internal predecessors, (900), 0 states have call successors, (0), 0 states 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 22:50:21,255 INFO L186 Difference]: Start difference. First operand has 85 places, 59 transitions, 164 flow. Second operand 11 states and 649 transitions. [2022-01-18 22:50:21,255 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 86 places, 64 transitions, 226 flow [2022-01-18 22:50:21,257 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 64 transitions, 182 flow, removed 15 selfloop flow, removed 10 redundant places. [2022-01-18 22:50:21,258 INFO L242 Difference]: Finished difference. Result has 76 places, 0 transitions, 0 flow [2022-01-18 22:50:21,258 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=75, PETRI_DIFFERENCE_MINUEND_FLOW=126, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=57, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=0, PETRI_PLACES=76, PETRI_TRANSITIONS=0} [2022-01-18 22:50:21,259 INFO L334 CegarLoopForPetriNet]: 67 programPoint places, 9 predicate places. [2022-01-18 22:50:21,260 INFO L470 AbstractCegarLoop]: Abstraction has has 76 places, 0 transitions, 0 flow [2022-01-18 22:50:21,260 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 58.625) internal successors, (469), 8 states have internal predecessors, (469), 0 states have call successors, (0), 0 states 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 22:50:21,262 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2022-01-18 22:50:21,263 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 3 remaining) [2022-01-18 22:50:21,264 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION (0 of 3 remaining) [2022-01-18 22:50:21,264 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-18 22:50:21,267 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-01-18 22:50:21,269 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-01-18 22:50:21,269 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-01-18 22:50:21,273 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.01 10:50:21 BasicIcfg [2022-01-18 22:50:21,273 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-18 22:50:21,278 INFO L158 Benchmark]: Toolchain (without parser) took 2859.42ms. Allocated memory is still 364.9MB. Free memory was 309.3MB in the beginning and 172.5MB in the end (delta: 136.8MB). Peak memory consumption was 135.6MB. Max. memory is 16.0GB. [2022-01-18 22:50:21,279 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 364.9MB. Free memory is still 328.2MB. There was no memory consumed. Max. memory is 16.0GB. [2022-01-18 22:50:21,279 INFO L158 Benchmark]: CACSL2BoogieTranslator took 425.31ms. Allocated memory is still 364.9MB. Free memory was 309.2MB in the beginning and 327.7MB in the end (delta: -18.5MB). Peak memory consumption was 16.0MB. Max. memory is 16.0GB. [2022-01-18 22:50:21,279 INFO L158 Benchmark]: Boogie Procedure Inliner took 50.78ms. Allocated memory is still 364.9MB. Free memory was 327.7MB in the beginning and 325.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2022-01-18 22:50:21,280 INFO L158 Benchmark]: Boogie Preprocessor took 25.75ms. Allocated memory is still 364.9MB. Free memory was 325.6MB in the beginning and 324.6MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.0GB. [2022-01-18 22:50:21,280 INFO L158 Benchmark]: RCFGBuilder took 317.31ms. Allocated memory is still 364.9MB. Free memory was 324.6MB in the beginning and 312.0MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. [2022-01-18 22:50:21,282 INFO L158 Benchmark]: TraceAbstraction took 2035.22ms. Allocated memory is still 364.9MB. Free memory was 310.9MB in the beginning and 172.5MB in the end (delta: 138.4MB). Peak memory consumption was 138.4MB. Max. memory is 16.0GB. [2022-01-18 22:50:21,287 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 364.9MB. Free memory is still 328.2MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 425.31ms. Allocated memory is still 364.9MB. Free memory was 309.2MB in the beginning and 327.7MB in the end (delta: -18.5MB). Peak memory consumption was 16.0MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 50.78ms. Allocated memory is still 364.9MB. Free memory was 327.7MB in the beginning and 325.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 25.75ms. Allocated memory is still 364.9MB. Free memory was 325.6MB in the beginning and 324.6MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.0GB. * RCFGBuilder took 317.31ms. Allocated memory is still 364.9MB. Free memory was 324.6MB in the beginning and 312.0MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. * TraceAbstraction took 2035.22ms. Allocated memory is still 364.9MB. Free memory was 310.9MB in the beginning and 172.5MB in the end (delta: 138.4MB). Peak memory consumption was 138.4MB. 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 5 procedures, 90 locations, 3 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: 1.9s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 142 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 142 mSDsluCounter, 200 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 177 mSDsCounter, 12 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 163 IncrementalHoareTripleChecker+Invalid, 175 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 12 mSolverCounterUnsat, 52 mSDtfsCounter, 163 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 61 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=172occurred in iteration=2, InterpolantAutomatonStates: 47, 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, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 199 NumberOfCodeBlocks, 199 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 195 ConstructedInterpolants, 0 QuantifiedInterpolants, 945 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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 22:50:21,315 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...