/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe-Before.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/weaver/popl20-more-vector-add.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-bf34d27 [2022-01-19 08:40:40,952 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-19 08:40:40,953 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-19 08:40:40,996 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-19 08:40:40,997 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-19 08:40:40,999 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-19 08:40:41,000 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-19 08:40:41,002 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-19 08:40:41,003 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-19 08:40:41,007 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-19 08:40:41,007 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-19 08:40:41,008 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-19 08:40:41,008 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-19 08:40:41,010 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-19 08:40:41,011 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-19 08:40:41,013 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-19 08:40:41,013 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-19 08:40:41,014 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-19 08:40:41,015 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-19 08:40:41,019 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-19 08:40:41,020 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-19 08:40:41,020 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-19 08:40:41,021 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-19 08:40:41,022 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-19 08:40:41,027 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-19 08:40:41,027 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-19 08:40:41,027 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-19 08:40:41,028 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-19 08:40:41,028 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-19 08:40:41,028 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-19 08:40:41,029 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-19 08:40:41,029 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-19 08:40:41,030 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-19 08:40:41,031 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-19 08:40:41,031 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-19 08:40:41,032 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-19 08:40:41,032 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-19 08:40:41,032 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-19 08:40:41,032 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-19 08:40:41,033 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-19 08:40:41,033 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-19 08:40:41,034 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe-Before.epf [2022-01-19 08:40:41,057 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-19 08:40:41,057 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-19 08:40:41,058 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-01-19 08:40:41,058 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-01-19 08:40:41,059 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-19 08:40:41,059 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-19 08:40:41,059 INFO L138 SettingsManager]: * Use SBE=true [2022-01-19 08:40:41,059 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-19 08:40:41,059 INFO L138 SettingsManager]: * sizeof long=4 [2022-01-19 08:40:41,059 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-19 08:40:41,059 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-01-19 08:40:41,060 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-19 08:40:41,060 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-19 08:40:41,060 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-19 08:40:41,060 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-19 08:40:41,060 INFO L138 SettingsManager]: * sizeof long double=12 [2022-01-19 08:40:41,060 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-19 08:40:41,060 INFO L138 SettingsManager]: * Use constant arrays=true [2022-01-19 08:40:41,060 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-19 08:40:41,060 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-19 08:40:41,060 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-19 08:40:41,061 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-01-19 08:40:41,061 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-19 08:40:41,061 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-19 08:40:41,061 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-19 08:40:41,061 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-19 08:40:41,061 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-19 08:40:41,061 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-19 08:40:41,061 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-19 08:40:41,061 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-19 08:40:41,061 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-19 08:40:41,061 INFO L138 SettingsManager]: * When to check the insufficient erros location relative to the other error locations=BEFORE [2022-01-19 08:40:41,061 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-01-19 08:40:41,230 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-19 08:40:41,247 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-19 08:40:41,249 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-19 08:40:41,249 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-19 08:40:41,250 INFO L275 PluginConnector]: CDTParser initialized [2022-01-19 08:40:41,251 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/popl20-more-vector-add.wvr.c [2022-01-19 08:40:41,287 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8959e38a5/363cd36a384c4836844cc8505ca4d7e5/FLAG012f79107 [2022-01-19 08:40:41,621 INFO L306 CDTParser]: Found 1 translation units. [2022-01-19 08:40:41,621 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-more-vector-add.wvr.c [2022-01-19 08:40:41,625 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8959e38a5/363cd36a384c4836844cc8505ca4d7e5/FLAG012f79107 [2022-01-19 08:40:41,633 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8959e38a5/363cd36a384c4836844cc8505ca4d7e5 [2022-01-19 08:40:41,635 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-19 08:40:41,635 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-01-19 08:40:41,636 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-19 08:40:41,636 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-19 08:40:41,638 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-19 08:40:41,639 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.01 08:40:41" (1/1) ... [2022-01-19 08:40:41,639 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@12a6bd22 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 08:40:41, skipping insertion in model container [2022-01-19 08:40:41,639 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.01 08:40:41" (1/1) ... [2022-01-19 08:40:41,646 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-19 08:40:41,663 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-19 08:40:41,799 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-more-vector-add.wvr.c[2598,2611] [2022-01-19 08:40:41,807 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-19 08:40:41,811 INFO L203 MainTranslator]: Completed pre-run [2022-01-19 08:40:41,831 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-more-vector-add.wvr.c[2598,2611] [2022-01-19 08:40:41,833 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-19 08:40:41,842 INFO L208 MainTranslator]: Completed translation [2022-01-19 08:40:41,842 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 08:40:41 WrapperNode [2022-01-19 08:40:41,842 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-19 08:40:41,843 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-19 08:40:41,843 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-19 08:40:41,843 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-19 08:40:41,847 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 08:40:41" (1/1) ... [2022-01-19 08:40:41,853 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 08:40:41" (1/1) ... [2022-01-19 08:40:41,870 INFO L137 Inliner]: procedures = 25, calls = 46, calls flagged for inlining = 11, calls inlined = 17, statements flattened = 193 [2022-01-19 08:40:41,870 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-19 08:40:41,871 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-19 08:40:41,871 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-19 08:40:41,871 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-19 08:40:41,876 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 08:40:41" (1/1) ... [2022-01-19 08:40:41,876 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 08:40:41" (1/1) ... [2022-01-19 08:40:41,879 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 08:40:41" (1/1) ... [2022-01-19 08:40:41,879 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 08:40:41" (1/1) ... [2022-01-19 08:40:41,884 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 08:40:41" (1/1) ... [2022-01-19 08:40:41,887 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 08:40:41" (1/1) ... [2022-01-19 08:40:41,888 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 08:40:41" (1/1) ... [2022-01-19 08:40:41,890 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-19 08:40:41,891 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-19 08:40:41,891 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-19 08:40:41,891 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-19 08:40:41,896 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 08:40:41" (1/1) ... [2022-01-19 08:40:41,900 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-19 08:40:41,911 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-19 08:40:41,924 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-01-19 08:40:41,931 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-01-19 08:40:41,958 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-19 08:40:41,958 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-01-19 08:40:41,958 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-01-19 08:40:41,958 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-01-19 08:40:41,959 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-01-19 08:40:41,959 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-01-19 08:40:41,959 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-01-19 08:40:41,959 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-01-19 08:40:41,959 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-01-19 08:40:41,959 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-01-19 08:40:41,959 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-01-19 08:40:41,959 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-01-19 08:40:41,960 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-19 08:40:41,960 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-19 08:40:41,960 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-19 08:40:41,961 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-01-19 08:40:42,021 INFO L234 CfgBuilder]: Building ICFG [2022-01-19 08:40:42,022 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-19 08:40:42,269 INFO L275 CfgBuilder]: Performing block encoding [2022-01-19 08:40:42,278 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-19 08:40:42,278 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2022-01-19 08:40:42,280 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.01 08:40:42 BoogieIcfgContainer [2022-01-19 08:40:42,280 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-19 08:40:42,281 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-19 08:40:42,281 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-19 08:40:42,283 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-19 08:40:42,283 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.01 08:40:41" (1/3) ... [2022-01-19 08:40:42,284 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6710c5ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.01 08:40:42, skipping insertion in model container [2022-01-19 08:40:42,284 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 08:40:41" (2/3) ... [2022-01-19 08:40:42,284 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6710c5ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.01 08:40:42, skipping insertion in model container [2022-01-19 08:40:42,284 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.01 08:40:42" (3/3) ... [2022-01-19 08:40:42,285 INFO L111 eAbstractionObserver]: Analyzing ICFG popl20-more-vector-add.wvr.c [2022-01-19 08:40:42,288 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-19 08:40:42,288 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-19 08:40:42,288 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-01-19 08:40:42,323 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:40:42,323 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:40:42,323 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:40:42,324 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:40:42,324 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:40:42,324 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:40:42,324 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:40:42,324 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:40:42,324 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:40:42,325 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:40:42,325 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:40:42,325 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:40:42,325 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:40:42,325 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:40:42,325 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:40:42,325 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:40:42,326 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:40:42,326 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:40:42,326 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:40:42,326 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:40:42,326 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:40:42,327 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:40:42,327 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:40:42,327 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:40:42,327 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:40:42,327 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:40:42,327 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:40:42,327 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:40:42,327 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:40:42,328 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:40:42,328 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:40:42,328 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:40:42,328 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:40:42,328 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:40:42,328 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:40:42,328 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:40:42,329 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:40:42,329 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:40:42,329 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:40:42,329 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:40:42,329 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:40:42,329 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:40:42,330 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:40:42,330 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:40:42,330 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:40:42,330 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:40:42,330 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:40:42,330 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:40:42,330 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:40:42,331 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:40:42,331 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:40:42,331 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:40:42,331 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:40:42,331 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:40:42,331 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:40:42,332 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:40:42,332 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:40:42,332 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:40:42,332 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:40:42,332 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:40:42,332 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:40:42,332 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:40:42,333 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:40:42,333 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:40:42,333 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:40:42,333 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:40:42,333 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:40:42,333 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:40:42,333 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:40:42,334 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:40:42,334 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:40:42,334 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:40:42,334 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:40:42,334 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:40:42,334 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:40:42,334 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:40:42,335 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:40:42,335 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:40:42,335 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:40:42,335 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:40:42,335 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:40:42,335 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:40:42,336 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:40:42,336 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:40:42,336 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:40:42,336 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:40:42,336 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:40:42,336 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:40:42,336 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:40:42,336 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:40:42,337 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:40:42,337 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:40:42,337 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:40:42,337 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:40:42,337 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:40:42,337 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:40:42,337 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:40:42,338 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:40:42,338 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:40:42,338 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:40:42,338 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:40:42,338 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:40:42,338 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:40:42,339 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:40:42,339 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:40:42,339 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:40:42,339 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:40:42,339 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:40:42,339 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:40:42,339 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:40:42,339 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:40:42,339 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:40:42,340 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:40:42,340 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:40:42,341 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:40:42,342 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:40:42,342 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:40:42,342 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:40:42,342 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:40:42,342 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:40:42,343 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:40:42,343 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:40:42,344 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:40:42,344 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:40:42,344 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:40:42,344 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:40:42,345 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:40:42,345 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:40:42,345 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:40:42,345 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:40:42,345 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:40:42,345 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:40:42,348 INFO L148 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-01-19 08:40:42,390 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-19 08:40:42,395 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-01-19 08:40:42,396 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-01-19 08:40:42,413 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 279 places, 294 transitions, 612 flow [2022-01-19 08:40:42,521 INFO L129 PetriNetUnfolder]: 25/291 cut-off events. [2022-01-19 08:40:42,521 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-01-19 08:40:42,525 INFO L84 FinitePrefix]: Finished finitePrefix Result has 304 conditions, 291 events. 25/291 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 179 event pairs, 0 based on Foata normal form. 0/265 useless extension candidates. Maximal degree in co-relation 234. Up to 2 conditions per place. [2022-01-19 08:40:42,526 INFO L82 GeneralOperation]: Start removeDead. Operand has 279 places, 294 transitions, 612 flow [2022-01-19 08:40:42,530 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 265 places, 280 transitions, 578 flow [2022-01-19 08:40:42,577 INFO L129 PetriNetUnfolder]: 25/279 cut-off events. [2022-01-19 08:40:42,577 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-01-19 08:40:42,578 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 08:40:42,579 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 08:40:42,579 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 08:40:42,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 08:40:42,583 INFO L85 PathProgramCache]: Analyzing trace with hash 1742839752, now seen corresponding path program 1 times [2022-01-19 08:40:42,588 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 08:40:42,589 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [911390697] [2022-01-19 08:40:42,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 08:40:42,589 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 08:40:42,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 08:40:42,852 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 08:40:42,852 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 08:40:42,852 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [911390697] [2022-01-19 08:40:42,853 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [911390697] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 08:40:42,853 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 08:40:42,853 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-19 08:40:42,854 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [624829005] [2022-01-19 08:40:42,854 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 08:40:42,861 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-01-19 08:40:42,861 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 08:40:42,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-01-19 08:40:42,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-19 08:40:42,884 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 269 out of 294 [2022-01-19 08:40:42,888 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 265 places, 280 transitions, 578 flow. Second operand has 2 states, 2 states have (on average 273.0) internal successors, (546), 2 states have internal predecessors, (546), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 08:40:42,888 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 08:40:42,888 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 269 of 294 [2022-01-19 08:40:42,889 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 08:40:42,924 INFO L129 PetriNetUnfolder]: 7/262 cut-off events. [2022-01-19 08:40:42,924 INFO L130 PetriNetUnfolder]: For 12/12 co-relation queries the response was YES. [2022-01-19 08:40:42,925 INFO L84 FinitePrefix]: Finished finitePrefix Result has 282 conditions, 262 events. 7/262 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 164 event pairs, 0 based on Foata normal form. 24/268 useless extension candidates. Maximal degree in co-relation 221. Up to 7 conditions per place. [2022-01-19 08:40:42,926 INFO L132 encePairwiseOnDemand]: 276/294 looper letters, 6 selfloop transitions, 0 changer transitions 11/262 dead transitions. [2022-01-19 08:40:42,926 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 266 places, 262 transitions, 554 flow [2022-01-19 08:40:42,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-19 08:40:42,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-01-19 08:40:42,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 562 transitions. [2022-01-19 08:40:42,937 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.95578231292517 [2022-01-19 08:40:42,937 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 562 transitions. [2022-01-19 08:40:42,938 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 562 transitions. [2022-01-19 08:40:42,940 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 08:40:42,942 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 562 transitions. [2022-01-19 08:40:42,947 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 281.0) internal successors, (562), 2 states have internal predecessors, (562), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 08:40:42,956 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 294.0) internal successors, (882), 3 states have internal predecessors, (882), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 08:40:42,957 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 294.0) internal successors, (882), 3 states have internal predecessors, (882), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 08:40:42,958 INFO L186 Difference]: Start difference. First operand has 265 places, 280 transitions, 578 flow. Second operand 2 states and 562 transitions. [2022-01-19 08:40:42,959 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 266 places, 262 transitions, 554 flow [2022-01-19 08:40:42,964 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 260 places, 262 transitions, 542 flow, removed 0 selfloop flow, removed 6 redundant places. [2022-01-19 08:40:42,968 INFO L242 Difference]: Finished difference. Result has 260 places, 251 transitions, 508 flow [2022-01-19 08:40:42,970 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=294, PETRI_DIFFERENCE_MINUEND_FLOW=530, PETRI_DIFFERENCE_MINUEND_PLACES=259, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=262, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=262, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=508, PETRI_PLACES=260, PETRI_TRANSITIONS=251} [2022-01-19 08:40:42,974 INFO L334 CegarLoopForPetriNet]: 265 programPoint places, -5 predicate places. [2022-01-19 08:40:42,974 INFO L470 AbstractCegarLoop]: Abstraction has has 260 places, 251 transitions, 508 flow [2022-01-19 08:40:42,975 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 273.0) internal successors, (546), 2 states have internal predecessors, (546), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 08:40:42,975 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 08:40:42,975 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 08:40:42,975 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-19 08:40:42,976 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 08:40:42,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 08:40:42,977 INFO L85 PathProgramCache]: Analyzing trace with hash -252625064, now seen corresponding path program 1 times [2022-01-19 08:40:42,977 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 08:40:42,977 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [783287377] [2022-01-19 08:40:42,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 08:40:42,977 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 08:40:43,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 08:40:43,271 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 08:40:43,272 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 08:40:43,272 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [783287377] [2022-01-19 08:40:43,272 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [783287377] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 08:40:43,273 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 08:40:43,273 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-19 08:40:43,273 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1503439509] [2022-01-19 08:40:43,273 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 08:40:43,275 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-19 08:40:43,276 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 08:40:43,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-19 08:40:43,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-01-19 08:40:43,280 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 168 out of 294 [2022-01-19 08:40:43,283 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 260 places, 251 transitions, 508 flow. Second operand has 8 states, 8 states have (on average 177.75) internal successors, (1422), 8 states have internal predecessors, (1422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 08:40:43,287 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 08:40:43,287 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 168 of 294 [2022-01-19 08:40:43,287 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 08:40:43,688 INFO L129 PetriNetUnfolder]: 81/818 cut-off events. [2022-01-19 08:40:43,689 INFO L130 PetriNetUnfolder]: For 21/21 co-relation queries the response was YES. [2022-01-19 08:40:43,691 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1161 conditions, 818 events. 81/818 cut-off events. For 21/21 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 2966 event pairs, 36 based on Foata normal form. 2/749 useless extension candidates. Maximal degree in co-relation 1158. Up to 121 conditions per place. [2022-01-19 08:40:43,692 INFO L132 encePairwiseOnDemand]: 269/294 looper letters, 94 selfloop transitions, 18 changer transitions 111/378 dead transitions. [2022-01-19 08:40:43,692 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 261 places, 378 transitions, 1220 flow [2022-01-19 08:40:43,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-01-19 08:40:43,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-01-19 08:40:43,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 2409 transitions. [2022-01-19 08:40:43,698 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.630298273155416 [2022-01-19 08:40:43,698 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 2409 transitions. [2022-01-19 08:40:43,698 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 2409 transitions. [2022-01-19 08:40:43,699 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 08:40:43,699 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 2409 transitions. [2022-01-19 08:40:43,702 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 185.30769230769232) internal successors, (2409), 13 states have internal predecessors, (2409), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 08:40:43,707 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 294.0) internal successors, (4116), 14 states have internal predecessors, (4116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 08:40:43,708 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 294.0) internal successors, (4116), 14 states have internal predecessors, (4116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 08:40:43,708 INFO L186 Difference]: Start difference. First operand has 260 places, 251 transitions, 508 flow. Second operand 13 states and 2409 transitions. [2022-01-19 08:40:43,709 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 261 places, 378 transitions, 1220 flow [2022-01-19 08:40:43,710 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 261 places, 378 transitions, 1220 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-01-19 08:40:43,713 INFO L242 Difference]: Finished difference. Result has 268 places, 255 transitions, 594 flow [2022-01-19 08:40:43,714 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=294, PETRI_DIFFERENCE_MINUEND_FLOW=508, PETRI_DIFFERENCE_MINUEND_PLACES=249, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=251, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=233, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=594, PETRI_PLACES=268, PETRI_TRANSITIONS=255} [2022-01-19 08:40:43,714 INFO L334 CegarLoopForPetriNet]: 265 programPoint places, 3 predicate places. [2022-01-19 08:40:43,714 INFO L470 AbstractCegarLoop]: Abstraction has has 268 places, 255 transitions, 594 flow [2022-01-19 08:40:43,715 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 177.75) internal successors, (1422), 8 states have internal predecessors, (1422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 08:40:43,715 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 08:40:43,715 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 08:40:43,715 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-19 08:40:43,716 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 08:40:43,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 08:40:43,716 INFO L85 PathProgramCache]: Analyzing trace with hash 955285944, now seen corresponding path program 1 times [2022-01-19 08:40:43,716 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 08:40:43,716 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2136100359] [2022-01-19 08:40:43,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 08:40:43,716 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 08:40:43,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 08:40:43,809 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-01-19 08:40:43,809 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 08:40:43,809 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2136100359] [2022-01-19 08:40:43,809 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2136100359] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-19 08:40:43,809 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1082895859] [2022-01-19 08:40:43,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 08:40:43,810 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-19 08:40:43,810 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-19 08:40:43,823 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-19 08:40:43,857 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-01-19 08:40:43,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 08:40:43,933 INFO L263 TraceCheckSpWp]: Trace formula consists of 499 conjuncts, 6 conjunts are in the unsatisfiable core [2022-01-19 08:40:43,939 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-19 08:40:44,335 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-01-19 08:40:44,336 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-19 08:40:44,663 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-01-19 08:40:44,663 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1082895859] provided 1 perfect and 1 imperfect interpolant sequences [2022-01-19 08:40:44,663 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-01-19 08:40:44,663 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [8, 7] total 14 [2022-01-19 08:40:44,664 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [671763308] [2022-01-19 08:40:44,664 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 08:40:44,664 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-19 08:40:44,664 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 08:40:44,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-19 08:40:44,665 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2022-01-19 08:40:44,666 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 207 out of 294 [2022-01-19 08:40:44,667 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 268 places, 255 transitions, 594 flow. Second operand has 7 states, 7 states have (on average 215.71428571428572) internal successors, (1510), 7 states have internal predecessors, (1510), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 08:40:44,667 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 08:40:44,668 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 207 of 294 [2022-01-19 08:40:44,668 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 08:40:44,785 INFO L129 PetriNetUnfolder]: 55/443 cut-off events. [2022-01-19 08:40:44,785 INFO L130 PetriNetUnfolder]: For 37/37 co-relation queries the response was YES. [2022-01-19 08:40:44,786 INFO L84 FinitePrefix]: Finished finitePrefix Result has 677 conditions, 443 events. 55/443 cut-off events. For 37/37 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 1026 event pairs, 27 based on Foata normal form. 0/410 useless extension candidates. Maximal degree in co-relation 666. Up to 97 conditions per place. [2022-01-19 08:40:44,787 INFO L132 encePairwiseOnDemand]: 286/294 looper letters, 71 selfloop transitions, 7 changer transitions 0/261 dead transitions. [2022-01-19 08:40:44,788 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 267 places, 261 transitions, 764 flow [2022-01-19 08:40:44,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-19 08:40:44,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-01-19 08:40:44,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1524 transitions. [2022-01-19 08:40:44,790 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7405247813411079 [2022-01-19 08:40:44,790 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1524 transitions. [2022-01-19 08:40:44,791 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1524 transitions. [2022-01-19 08:40:44,791 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 08:40:44,792 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1524 transitions. [2022-01-19 08:40:44,794 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 217.71428571428572) internal successors, (1524), 7 states have internal predecessors, (1524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 08:40:44,796 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 294.0) internal successors, (2352), 8 states have internal predecessors, (2352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 08:40:44,797 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 294.0) internal successors, (2352), 8 states have internal predecessors, (2352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 08:40:44,797 INFO L186 Difference]: Start difference. First operand has 268 places, 255 transitions, 594 flow. Second operand 7 states and 1524 transitions. [2022-01-19 08:40:44,797 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 267 places, 261 transitions, 764 flow [2022-01-19 08:40:44,800 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 257 places, 261 transitions, 718 flow, removed 9 selfloop flow, removed 10 redundant places. [2022-01-19 08:40:44,802 INFO L242 Difference]: Finished difference. Result has 260 places, 257 transitions, 581 flow [2022-01-19 08:40:44,802 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=294, PETRI_DIFFERENCE_MINUEND_FLOW=548, PETRI_DIFFERENCE_MINUEND_PLACES=251, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=255, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=248, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=581, PETRI_PLACES=260, PETRI_TRANSITIONS=257} [2022-01-19 08:40:44,804 INFO L334 CegarLoopForPetriNet]: 265 programPoint places, -5 predicate places. [2022-01-19 08:40:44,804 INFO L470 AbstractCegarLoop]: Abstraction has has 260 places, 257 transitions, 581 flow [2022-01-19 08:40:44,805 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 215.71428571428572) internal successors, (1510), 7 states have internal predecessors, (1510), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 08:40:44,805 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 08:40:44,806 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 08:40:44,843 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-01-19 08:40:45,032 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-19 08:40:45,032 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 08:40:45,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 08:40:45,033 INFO L85 PathProgramCache]: Analyzing trace with hash 461159547, now seen corresponding path program 1 times [2022-01-19 08:40:45,033 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 08:40:45,033 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1175017841] [2022-01-19 08:40:45,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 08:40:45,034 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 08:40:45,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 08:40:45,173 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-01-19 08:40:45,174 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 08:40:45,176 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1175017841] [2022-01-19 08:40:45,176 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1175017841] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-19 08:40:45,176 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2002150502] [2022-01-19 08:40:45,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 08:40:45,177 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-19 08:40:45,177 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-19 08:40:45,192 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-19 08:40:45,199 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-01-19 08:40:45,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 08:40:45,310 INFO L263 TraceCheckSpWp]: Trace formula consists of 515 conjuncts, 8 conjunts are in the unsatisfiable core [2022-01-19 08:40:45,321 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-19 08:40:45,612 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-01-19 08:40:45,613 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-19 08:40:45,945 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-01-19 08:40:45,945 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2002150502] provided 1 perfect and 1 imperfect interpolant sequences [2022-01-19 08:40:45,945 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-01-19 08:40:45,946 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [10, 9] total 18 [2022-01-19 08:40:45,946 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2095379115] [2022-01-19 08:40:45,946 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 08:40:45,947 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-19 08:40:45,949 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 08:40:45,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-19 08:40:45,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=236, Unknown=0, NotChecked=0, Total=306 [2022-01-19 08:40:45,953 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 197 out of 294 [2022-01-19 08:40:45,955 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 260 places, 257 transitions, 581 flow. Second operand has 9 states, 9 states have (on average 204.33333333333334) internal successors, (1839), 9 states have internal predecessors, (1839), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 08:40:45,955 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 08:40:45,955 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 197 of 294 [2022-01-19 08:40:45,955 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 08:40:46,352 INFO L129 PetriNetUnfolder]: 1177/2432 cut-off events. [2022-01-19 08:40:46,352 INFO L130 PetriNetUnfolder]: For 1086/1524 co-relation queries the response was YES. [2022-01-19 08:40:46,357 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4946 conditions, 2432 events. 1177/2432 cut-off events. For 1086/1524 co-relation queries the response was YES. Maximal size of possible extension queue 139. Compared 15069 event pairs, 287 based on Foata normal form. 438/2679 useless extension candidates. Maximal degree in co-relation 4938. Up to 498 conditions per place. [2022-01-19 08:40:46,368 INFO L132 encePairwiseOnDemand]: 283/294 looper letters, 133 selfloop transitions, 17 changer transitions 0/323 dead transitions. [2022-01-19 08:40:46,368 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 270 places, 323 transitions, 1064 flow [2022-01-19 08:40:46,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-19 08:40:46,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-01-19 08:40:46,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 2308 transitions. [2022-01-19 08:40:46,371 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7136672850958565 [2022-01-19 08:40:46,372 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 2308 transitions. [2022-01-19 08:40:46,372 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 2308 transitions. [2022-01-19 08:40:46,372 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 08:40:46,372 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 2308 transitions. [2022-01-19 08:40:46,375 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 209.8181818181818) internal successors, (2308), 11 states have internal predecessors, (2308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 08:40:46,380 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 294.0) internal successors, (3528), 12 states have internal predecessors, (3528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 08:40:46,380 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 294.0) internal successors, (3528), 12 states have internal predecessors, (3528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 08:40:46,380 INFO L186 Difference]: Start difference. First operand has 260 places, 257 transitions, 581 flow. Second operand 11 states and 2308 transitions. [2022-01-19 08:40:46,380 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 270 places, 323 transitions, 1064 flow [2022-01-19 08:40:46,382 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 266 places, 323 transitions, 1051 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-01-19 08:40:46,386 INFO L242 Difference]: Finished difference. Result has 270 places, 268 transitions, 661 flow [2022-01-19 08:40:46,386 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=294, PETRI_DIFFERENCE_MINUEND_FLOW=573, PETRI_DIFFERENCE_MINUEND_PLACES=256, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=257, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=247, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=661, PETRI_PLACES=270, PETRI_TRANSITIONS=268} [2022-01-19 08:40:46,389 INFO L334 CegarLoopForPetriNet]: 265 programPoint places, 5 predicate places. [2022-01-19 08:40:46,389 INFO L470 AbstractCegarLoop]: Abstraction has has 270 places, 268 transitions, 661 flow [2022-01-19 08:40:46,390 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 204.33333333333334) internal successors, (1839), 9 states have internal predecessors, (1839), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 08:40:46,390 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 08:40:46,390 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 08:40:46,409 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-01-19 08:40:46,607 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2022-01-19 08:40:46,607 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 08:40:46,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 08:40:46,608 INFO L85 PathProgramCache]: Analyzing trace with hash 994210303, now seen corresponding path program 2 times [2022-01-19 08:40:46,608 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 08:40:46,608 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [654443499] [2022-01-19 08:40:46,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 08:40:46,608 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 08:40:46,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 08:40:46,753 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-01-19 08:40:46,754 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 08:40:46,754 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [654443499] [2022-01-19 08:40:46,754 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [654443499] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-19 08:40:46,754 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [81278707] [2022-01-19 08:40:46,755 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-01-19 08:40:46,755 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-19 08:40:46,755 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-19 08:40:46,780 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-19 08:40:46,830 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-01-19 08:40:46,925 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-01-19 08:40:46,926 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-19 08:40:46,928 INFO L263 TraceCheckSpWp]: Trace formula consists of 455 conjuncts, 9 conjunts are in the unsatisfiable core [2022-01-19 08:40:46,933 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-19 08:40:47,244 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-01-19 08:40:47,244 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-19 08:40:47,244 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [81278707] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 08:40:47,244 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-01-19 08:40:47,244 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [10] total 16 [2022-01-19 08:40:47,244 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [861772182] [2022-01-19 08:40:47,245 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 08:40:47,245 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-19 08:40:47,245 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 08:40:47,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-19 08:40:47,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2022-01-19 08:40:47,247 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 188 out of 294 [2022-01-19 08:40:47,248 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 270 places, 268 transitions, 661 flow. Second operand has 8 states, 8 states have (on average 196.0) internal successors, (1568), 8 states have internal predecessors, (1568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 08:40:47,248 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 08:40:47,248 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 188 of 294 [2022-01-19 08:40:47,248 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 08:40:47,679 INFO L129 PetriNetUnfolder]: 1595/3269 cut-off events. [2022-01-19 08:40:47,679 INFO L130 PetriNetUnfolder]: For 2204/2762 co-relation queries the response was YES. [2022-01-19 08:40:47,687 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7319 conditions, 3269 events. 1595/3269 cut-off events. For 2204/2762 co-relation queries the response was YES. Maximal size of possible extension queue 195. Compared 21784 event pairs, 576 based on Foata normal form. 559/3705 useless extension candidates. Maximal degree in co-relation 7307. Up to 1008 conditions per place. [2022-01-19 08:40:47,698 INFO L132 encePairwiseOnDemand]: 283/294 looper letters, 143 selfloop transitions, 14 changer transitions 10/347 dead transitions. [2022-01-19 08:40:47,699 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 278 places, 347 transitions, 1236 flow [2022-01-19 08:40:47,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-19 08:40:47,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-01-19 08:40:47,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1844 transitions. [2022-01-19 08:40:47,701 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6969009826152683 [2022-01-19 08:40:47,702 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1844 transitions. [2022-01-19 08:40:47,702 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1844 transitions. [2022-01-19 08:40:47,702 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 08:40:47,702 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1844 transitions. [2022-01-19 08:40:47,705 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 204.88888888888889) internal successors, (1844), 9 states have internal predecessors, (1844), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 08:40:47,707 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 294.0) internal successors, (2940), 10 states have internal predecessors, (2940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 08:40:47,708 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 294.0) internal successors, (2940), 10 states have internal predecessors, (2940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 08:40:47,708 INFO L186 Difference]: Start difference. First operand has 270 places, 268 transitions, 661 flow. Second operand 9 states and 1844 transitions. [2022-01-19 08:40:47,708 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 278 places, 347 transitions, 1236 flow [2022-01-19 08:40:47,713 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 274 places, 347 transitions, 1229 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-01-19 08:40:47,715 INFO L242 Difference]: Finished difference. Result has 280 places, 275 transitions, 750 flow [2022-01-19 08:40:47,716 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=294, PETRI_DIFFERENCE_MINUEND_FLOW=654, PETRI_DIFFERENCE_MINUEND_PLACES=266, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=268, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=257, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=750, PETRI_PLACES=280, PETRI_TRANSITIONS=275} [2022-01-19 08:40:47,716 INFO L334 CegarLoopForPetriNet]: 265 programPoint places, 15 predicate places. [2022-01-19 08:40:47,716 INFO L470 AbstractCegarLoop]: Abstraction has has 280 places, 275 transitions, 750 flow [2022-01-19 08:40:47,717 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 196.0) internal successors, (1568), 8 states have internal predecessors, (1568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 08:40:47,717 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 08:40:47,717 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 08:40:47,734 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-01-19 08:40:47,931 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-19 08:40:47,931 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 08:40:47,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 08:40:47,932 INFO L85 PathProgramCache]: Analyzing trace with hash 733892861, now seen corresponding path program 3 times [2022-01-19 08:40:47,932 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 08:40:47,932 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [131143240] [2022-01-19 08:40:47,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 08:40:47,932 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 08:40:47,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 08:40:48,020 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-01-19 08:40:48,021 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 08:40:48,021 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [131143240] [2022-01-19 08:40:48,021 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [131143240] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-19 08:40:48,021 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [752562774] [2022-01-19 08:40:48,021 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-01-19 08:40:48,021 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-19 08:40:48,021 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-19 08:40:48,022 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-19 08:40:48,039 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-01-19 08:40:48,137 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2022-01-19 08:40:48,137 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-19 08:40:48,138 INFO L263 TraceCheckSpWp]: Trace formula consists of 455 conjuncts, 9 conjunts are in the unsatisfiable core [2022-01-19 08:40:48,141 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-19 08:40:48,480 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-01-19 08:40:48,481 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-19 08:40:48,481 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [752562774] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 08:40:48,481 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-01-19 08:40:48,481 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [10] total 16 [2022-01-19 08:40:48,481 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1408083897] [2022-01-19 08:40:48,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 08:40:48,482 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-19 08:40:48,482 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 08:40:48,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-19 08:40:48,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=207, Unknown=0, NotChecked=0, Total=240 [2022-01-19 08:40:48,484 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 188 out of 294 [2022-01-19 08:40:48,485 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 280 places, 275 transitions, 750 flow. Second operand has 8 states, 8 states have (on average 196.0) internal successors, (1568), 8 states have internal predecessors, (1568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 08:40:48,485 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 08:40:48,485 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 188 of 294 [2022-01-19 08:40:48,485 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 08:40:49,070 INFO L129 PetriNetUnfolder]: 2356/4851 cut-off events. [2022-01-19 08:40:49,071 INFO L130 PetriNetUnfolder]: For 4753/5565 co-relation queries the response was YES. [2022-01-19 08:40:49,085 INFO L84 FinitePrefix]: Finished finitePrefix Result has 11584 conditions, 4851 events. 2356/4851 cut-off events. For 4753/5565 co-relation queries the response was YES. Maximal size of possible extension queue 256. Compared 35107 event pairs, 875 based on Foata normal form. 805/5469 useless extension candidates. Maximal degree in co-relation 11566. Up to 1704 conditions per place. [2022-01-19 08:40:49,102 INFO L132 encePairwiseOnDemand]: 283/294 looper letters, 144 selfloop transitions, 14 changer transitions 10/348 dead transitions. [2022-01-19 08:40:49,102 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 285 places, 348 transitions, 1387 flow [2022-01-19 08:40:49,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-19 08:40:49,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-01-19 08:40:49,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1827 transitions. [2022-01-19 08:40:49,105 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6904761904761905 [2022-01-19 08:40:49,105 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1827 transitions. [2022-01-19 08:40:49,105 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1827 transitions. [2022-01-19 08:40:49,106 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 08:40:49,106 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1827 transitions. [2022-01-19 08:40:49,108 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 203.0) internal successors, (1827), 9 states have internal predecessors, (1827), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 08:40:49,111 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 294.0) internal successors, (2940), 10 states have internal predecessors, (2940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 08:40:49,111 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 294.0) internal successors, (2940), 10 states have internal predecessors, (2940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 08:40:49,112 INFO L186 Difference]: Start difference. First operand has 280 places, 275 transitions, 750 flow. Second operand 9 states and 1827 transitions. [2022-01-19 08:40:49,112 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 285 places, 348 transitions, 1387 flow [2022-01-19 08:40:49,121 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 280 places, 348 transitions, 1353 flow, removed 8 selfloop flow, removed 5 redundant places. [2022-01-19 08:40:49,124 INFO L242 Difference]: Finished difference. Result has 286 places, 281 transitions, 837 flow [2022-01-19 08:40:49,124 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=294, PETRI_DIFFERENCE_MINUEND_FLOW=733, PETRI_DIFFERENCE_MINUEND_PLACES=272, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=275, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=261, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=837, PETRI_PLACES=286, PETRI_TRANSITIONS=281} [2022-01-19 08:40:49,124 INFO L334 CegarLoopForPetriNet]: 265 programPoint places, 21 predicate places. [2022-01-19 08:40:49,125 INFO L470 AbstractCegarLoop]: Abstraction has has 286 places, 281 transitions, 837 flow [2022-01-19 08:40:49,125 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 196.0) internal successors, (1568), 8 states have internal predecessors, (1568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 08:40:49,125 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 08:40:49,125 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 08:40:49,143 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-01-19 08:40:49,342 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-19 08:40:49,342 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 08:40:49,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 08:40:49,342 INFO L85 PathProgramCache]: Analyzing trace with hash 1540889437, now seen corresponding path program 4 times [2022-01-19 08:40:49,342 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 08:40:49,342 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [634525713] [2022-01-19 08:40:49,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 08:40:49,343 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 08:40:49,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 08:40:49,476 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-01-19 08:40:49,476 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 08:40:49,476 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [634525713] [2022-01-19 08:40:49,476 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [634525713] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-19 08:40:49,476 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1085353915] [2022-01-19 08:40:49,476 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-01-19 08:40:49,477 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-19 08:40:49,477 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-19 08:40:49,478 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-19 08:40:49,478 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-01-19 08:40:49,575 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-01-19 08:40:49,575 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-19 08:40:49,576 INFO L263 TraceCheckSpWp]: Trace formula consists of 475 conjuncts, 8 conjunts are in the unsatisfiable core [2022-01-19 08:40:49,578 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-19 08:40:49,983 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-01-19 08:40:49,983 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-19 08:40:50,433 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-01-19 08:40:50,434 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1085353915] provided 1 perfect and 1 imperfect interpolant sequences [2022-01-19 08:40:50,434 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-01-19 08:40:50,434 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [10, 9] total 19 [2022-01-19 08:40:50,434 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1733559370] [2022-01-19 08:40:50,434 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 08:40:50,435 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-19 08:40:50,435 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 08:40:50,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-19 08:40:50,435 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=265, Unknown=0, NotChecked=0, Total=342 [2022-01-19 08:40:50,436 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 197 out of 294 [2022-01-19 08:40:50,437 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 286 places, 281 transitions, 837 flow. Second operand has 9 states, 9 states have (on average 204.33333333333334) internal successors, (1839), 9 states have internal predecessors, (1839), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 08:40:50,437 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 08:40:50,437 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 197 of 294 [2022-01-19 08:40:50,438 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 08:40:51,066 INFO L129 PetriNetUnfolder]: 2667/5224 cut-off events. [2022-01-19 08:40:51,067 INFO L130 PetriNetUnfolder]: For 7304/8271 co-relation queries the response was YES. [2022-01-19 08:40:51,082 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13525 conditions, 5224 events. 2667/5224 cut-off events. For 7304/8271 co-relation queries the response was YES. Maximal size of possible extension queue 290. Compared 38142 event pairs, 289 based on Foata normal form. 964/6058 useless extension candidates. Maximal degree in co-relation 13504. Up to 1304 conditions per place. [2022-01-19 08:40:51,098 INFO L132 encePairwiseOnDemand]: 281/294 looper letters, 144 selfloop transitions, 37 changer transitions 0/354 dead transitions. [2022-01-19 08:40:51,099 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 293 places, 354 transitions, 1490 flow [2022-01-19 08:40:51,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-19 08:40:51,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-01-19 08:40:51,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 2320 transitions. [2022-01-19 08:40:51,102 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.717377860235003 [2022-01-19 08:40:51,102 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 2320 transitions. [2022-01-19 08:40:51,102 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 2320 transitions. [2022-01-19 08:40:51,103 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 08:40:51,103 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 2320 transitions. [2022-01-19 08:40:51,106 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 210.9090909090909) internal successors, (2320), 11 states have internal predecessors, (2320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 08:40:51,109 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 294.0) internal successors, (3528), 12 states have internal predecessors, (3528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 08:40:51,110 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 294.0) internal successors, (3528), 12 states have internal predecessors, (3528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 08:40:51,110 INFO L186 Difference]: Start difference. First operand has 286 places, 281 transitions, 837 flow. Second operand 11 states and 2320 transitions. [2022-01-19 08:40:51,110 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 293 places, 354 transitions, 1490 flow [2022-01-19 08:40:51,123 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 288 places, 354 transitions, 1456 flow, removed 10 selfloop flow, removed 5 redundant places. [2022-01-19 08:40:51,126 INFO L242 Difference]: Finished difference. Result has 293 places, 293 transitions, 1036 flow [2022-01-19 08:40:51,126 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=294, PETRI_DIFFERENCE_MINUEND_FLOW=813, PETRI_DIFFERENCE_MINUEND_PLACES=278, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=281, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=25, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=249, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1036, PETRI_PLACES=293, PETRI_TRANSITIONS=293} [2022-01-19 08:40:51,127 INFO L334 CegarLoopForPetriNet]: 265 programPoint places, 28 predicate places. [2022-01-19 08:40:51,127 INFO L470 AbstractCegarLoop]: Abstraction has has 293 places, 293 transitions, 1036 flow [2022-01-19 08:40:51,128 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 204.33333333333334) internal successors, (1839), 9 states have internal predecessors, (1839), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 08:40:51,128 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 08:40:51,128 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 08:40:51,207 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-01-19 08:40:51,340 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-19 08:40:51,341 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 08:40:51,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 08:40:51,341 INFO L85 PathProgramCache]: Analyzing trace with hash 2134251955, now seen corresponding path program 5 times [2022-01-19 08:40:51,341 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 08:40:51,341 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [998986148] [2022-01-19 08:40:51,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 08:40:51,341 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 08:40:51,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 08:40:51,434 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-01-19 08:40:51,435 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 08:40:51,435 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [998986148] [2022-01-19 08:40:51,435 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [998986148] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-19 08:40:51,435 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1951043726] [2022-01-19 08:40:51,435 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-01-19 08:40:51,435 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-19 08:40:51,435 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-19 08:40:51,436 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-19 08:40:51,437 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-01-19 08:40:51,542 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-01-19 08:40:51,542 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-19 08:40:51,543 INFO L263 TraceCheckSpWp]: Trace formula consists of 515 conjuncts, 6 conjunts are in the unsatisfiable core [2022-01-19 08:40:51,545 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-19 08:40:51,836 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-01-19 08:40:51,837 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-19 08:40:52,065 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-01-19 08:40:52,066 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1951043726] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-19 08:40:52,066 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-19 08:40:52,066 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 7, 7] total 16 [2022-01-19 08:40:52,066 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [560134493] [2022-01-19 08:40:52,066 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-19 08:40:52,066 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-19 08:40:52,066 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 08:40:52,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-19 08:40:52,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=191, Unknown=0, NotChecked=0, Total=240 [2022-01-19 08:40:52,068 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 191 out of 294 [2022-01-19 08:40:52,071 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 293 places, 293 transitions, 1036 flow. Second operand has 16 states, 16 states have (on average 199.3125) internal successors, (3189), 16 states have internal predecessors, (3189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 08:40:52,071 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 08:40:52,071 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 191 of 294 [2022-01-19 08:40:52,071 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 08:40:55,051 INFO L129 PetriNetUnfolder]: 10255/19257 cut-off events. [2022-01-19 08:40:55,051 INFO L130 PetriNetUnfolder]: For 36959/37273 co-relation queries the response was YES. [2022-01-19 08:40:55,112 INFO L84 FinitePrefix]: Finished finitePrefix Result has 55679 conditions, 19257 events. 10255/19257 cut-off events. For 36959/37273 co-relation queries the response was YES. Maximal size of possible extension queue 623. Compared 158881 event pairs, 745 based on Foata normal form. 20/19204 useless extension candidates. Maximal degree in co-relation 55656. Up to 1909 conditions per place. [2022-01-19 08:40:55,191 INFO L132 encePairwiseOnDemand]: 265/294 looper letters, 334 selfloop transitions, 134 changer transitions 0/635 dead transitions. [2022-01-19 08:40:55,191 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 317 places, 635 transitions, 3612 flow [2022-01-19 08:40:55,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-01-19 08:40:55,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2022-01-19 08:40:55,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 5177 transitions. [2022-01-19 08:40:55,200 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7043537414965987 [2022-01-19 08:40:55,200 INFO L72 ComplementDD]: Start complementDD. Operand 25 states and 5177 transitions. [2022-01-19 08:40:55,200 INFO L73 IsDeterministic]: Start isDeterministic. Operand 25 states and 5177 transitions. [2022-01-19 08:40:55,202 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 08:40:55,202 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 25 states and 5177 transitions. [2022-01-19 08:40:55,208 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 26 states, 25 states have (on average 207.08) internal successors, (5177), 25 states have internal predecessors, (5177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 08:40:55,215 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 26 states, 26 states have (on average 294.0) internal successors, (7644), 26 states have internal predecessors, (7644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 08:40:55,216 INFO L81 ComplementDD]: Finished complementDD. Result has 26 states, 26 states have (on average 294.0) internal successors, (7644), 26 states have internal predecessors, (7644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 08:40:55,216 INFO L186 Difference]: Start difference. First operand has 293 places, 293 transitions, 1036 flow. Second operand 25 states and 5177 transitions. [2022-01-19 08:40:55,216 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 317 places, 635 transitions, 3612 flow [2022-01-19 08:40:55,437 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 311 places, 635 transitions, 3516 flow, removed 16 selfloop flow, removed 6 redundant places. [2022-01-19 08:40:55,442 INFO L242 Difference]: Finished difference. Result has 327 places, 382 transitions, 2264 flow [2022-01-19 08:40:55,442 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=294, PETRI_DIFFERENCE_MINUEND_FLOW=1000, PETRI_DIFFERENCE_MINUEND_PLACES=287, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=293, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=45, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=237, PETRI_DIFFERENCE_SUBTRAHEND_STATES=25, PETRI_FLOW=2264, PETRI_PLACES=327, PETRI_TRANSITIONS=382} [2022-01-19 08:40:55,444 INFO L334 CegarLoopForPetriNet]: 265 programPoint places, 62 predicate places. [2022-01-19 08:40:55,444 INFO L470 AbstractCegarLoop]: Abstraction has has 327 places, 382 transitions, 2264 flow [2022-01-19 08:40:55,445 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 199.3125) internal successors, (3189), 16 states have internal predecessors, (3189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 08:40:55,445 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 08:40:55,445 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 08:40:55,465 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-01-19 08:40:55,662 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-19 08:40:55,662 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 08:40:55,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 08:40:55,663 INFO L85 PathProgramCache]: Analyzing trace with hash 982030349, now seen corresponding path program 6 times [2022-01-19 08:40:55,663 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 08:40:55,663 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1357086897] [2022-01-19 08:40:55,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 08:40:55,663 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 08:40:55,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 08:40:55,773 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-01-19 08:40:55,774 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 08:40:55,774 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1357086897] [2022-01-19 08:40:55,774 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1357086897] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-19 08:40:55,774 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1520851320] [2022-01-19 08:40:55,774 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-01-19 08:40:55,774 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-19 08:40:55,774 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-19 08:40:55,775 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-19 08:40:55,776 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-01-19 08:40:55,952 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2022-01-19 08:40:55,952 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-19 08:40:55,953 INFO L263 TraceCheckSpWp]: Trace formula consists of 447 conjuncts, 9 conjunts are in the unsatisfiable core [2022-01-19 08:40:55,960 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-19 08:40:56,276 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-01-19 08:40:56,276 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-19 08:40:56,276 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1520851320] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 08:40:56,276 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-01-19 08:40:56,276 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [10] total 16 [2022-01-19 08:40:56,276 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [985840130] [2022-01-19 08:40:56,276 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 08:40:56,277 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-19 08:40:56,277 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 08:40:56,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-19 08:40:56,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=207, Unknown=0, NotChecked=0, Total=240 [2022-01-19 08:40:56,278 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 188 out of 294 [2022-01-19 08:40:56,279 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 327 places, 382 transitions, 2264 flow. Second operand has 8 states, 8 states have (on average 196.0) internal successors, (1568), 8 states have internal predecessors, (1568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 08:40:56,279 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 08:40:56,279 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 188 of 294 [2022-01-19 08:40:56,279 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 08:40:57,534 INFO L129 PetriNetUnfolder]: 4062/8531 cut-off events. [2022-01-19 08:40:57,534 INFO L130 PetriNetUnfolder]: For 35178/36279 co-relation queries the response was YES. [2022-01-19 08:40:57,568 INFO L84 FinitePrefix]: Finished finitePrefix Result has 28969 conditions, 8531 events. 4062/8531 cut-off events. For 35178/36279 co-relation queries the response was YES. Maximal size of possible extension queue 325. Compared 68784 event pairs, 1359 based on Foata normal form. 69/8388 useless extension candidates. Maximal degree in co-relation 28930. Up to 3043 conditions per place. [2022-01-19 08:40:57,598 INFO L132 encePairwiseOnDemand]: 283/294 looper letters, 200 selfloop transitions, 39 changer transitions 7/443 dead transitions. [2022-01-19 08:40:57,598 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 335 places, 443 transitions, 3025 flow [2022-01-19 08:40:57,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-19 08:40:57,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-01-19 08:40:57,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1833 transitions. [2022-01-19 08:40:57,601 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6927437641723356 [2022-01-19 08:40:57,601 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1833 transitions. [2022-01-19 08:40:57,601 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1833 transitions. [2022-01-19 08:40:57,602 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 08:40:57,602 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1833 transitions. [2022-01-19 08:40:57,604 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 203.66666666666666) internal successors, (1833), 9 states have internal predecessors, (1833), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 08:40:57,607 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 294.0) internal successors, (2940), 10 states have internal predecessors, (2940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 08:40:57,607 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 294.0) internal successors, (2940), 10 states have internal predecessors, (2940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 08:40:57,607 INFO L186 Difference]: Start difference. First operand has 327 places, 382 transitions, 2264 flow. Second operand 9 states and 1833 transitions. [2022-01-19 08:40:57,607 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 335 places, 443 transitions, 3025 flow [2022-01-19 08:40:57,699 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 329 places, 443 transitions, 2964 flow, removed 20 selfloop flow, removed 6 redundant places. [2022-01-19 08:40:57,703 INFO L242 Difference]: Finished difference. Result has 334 places, 387 transitions, 2391 flow [2022-01-19 08:40:57,703 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=294, PETRI_DIFFERENCE_MINUEND_FLOW=2203, PETRI_DIFFERENCE_MINUEND_PLACES=321, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=382, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=34, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=345, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=2391, PETRI_PLACES=334, PETRI_TRANSITIONS=387} [2022-01-19 08:40:57,704 INFO L334 CegarLoopForPetriNet]: 265 programPoint places, 69 predicate places. [2022-01-19 08:40:57,704 INFO L470 AbstractCegarLoop]: Abstraction has has 334 places, 387 transitions, 2391 flow [2022-01-19 08:40:57,704 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 196.0) internal successors, (1568), 8 states have internal predecessors, (1568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 08:40:57,704 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 08:40:57,704 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 08:40:57,725 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-01-19 08:40:57,919 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-19 08:40:57,920 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 08:40:57,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 08:40:57,920 INFO L85 PathProgramCache]: Analyzing trace with hash 1318242584, now seen corresponding path program 1 times [2022-01-19 08:40:57,920 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 08:40:57,920 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [935730697] [2022-01-19 08:40:57,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 08:40:57,920 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 08:40:58,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 08:41:00,010 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-01-19 08:41:00,010 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 08:41:00,010 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [935730697] [2022-01-19 08:41:00,010 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [935730697] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-19 08:41:00,010 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1995909077] [2022-01-19 08:41:00,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 08:41:00,011 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-19 08:41:00,011 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-19 08:41:00,012 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-19 08:41:00,013 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-01-19 08:41:00,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 08:41:00,149 INFO L263 TraceCheckSpWp]: Trace formula consists of 531 conjuncts, 115 conjunts are in the unsatisfiable core [2022-01-19 08:41:00,153 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-19 08:41:00,271 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-01-19 08:41:00,724 INFO L353 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-01-19 08:41:00,724 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 14 [2022-01-19 08:41:01,249 INFO L353 Elim1Store]: treesize reduction 44, result has 30.2 percent of original size [2022-01-19 08:41:01,249 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 22 treesize of output 33 [2022-01-19 08:41:02,107 INFO L353 Elim1Store]: treesize reduction 20, result has 39.4 percent of original size [2022-01-19 08:41:02,107 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 21 treesize of output 25 [2022-01-19 08:41:03,503 INFO L353 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-01-19 08:41:03,504 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 24 [2022-01-19 08:41:04,088 INFO L353 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-01-19 08:41:04,089 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 41 treesize of output 38 [2022-01-19 08:41:05,587 INFO L173 IndexEqualityManager]: detected equality via solver [2022-01-19 08:41:05,598 INFO L353 Elim1Store]: treesize reduction 9, result has 57.1 percent of original size [2022-01-19 08:41:05,598 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 5 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 2 case distinctions, treesize of input 51 treesize of output 28 [2022-01-19 08:41:05,667 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-01-19 08:41:05,667 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-19 08:43:29,946 INFO L353 Elim1Store]: treesize reduction 186, result has 61.7 percent of original size [2022-01-19 08:43:29,947 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 16 case distinctions, treesize of input 2002 treesize of output 1245 [2022-01-19 08:43:30,044 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-19 08:43:30,044 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 1324 treesize of output 1276 Received shutdown request... [2022-01-19 08:55:21,112 WARN L244 SmtUtils]: Removed 2 from assertion stack [2022-01-19 08:55:21,113 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2022-01-19 08:55:21,114 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-01-19 08:55:21,114 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-01-19 08:55:21,131 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-01-19 08:55:21,333 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-01-19 08:55:21,333 WARN L594 AbstractCegarLoop]: Verification canceled: while CegarLoopForPetriNet was analyzing trace of length 243 with TraceHistMax 1,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 23 for 44ms.. [2022-01-19 08:55:21,335 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION (2 of 4 remaining) [2022-01-19 08:55:21,335 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATION (1 of 4 remaining) [2022-01-19 08:55:21,335 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2INUSE_VIOLATION (0 of 4 remaining) [2022-01-19 08:55:21,346 INFO L732 BasicCegarLoop]: Path program histogram: [6, 1, 1, 1, 1] [2022-01-19 08:55:21,347 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-01-19 08:55:21,348 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-01-19 08:55:21,354 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.01 08:55:21 BasicIcfg [2022-01-19 08:55:21,355 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-19 08:55:21,355 INFO L158 Benchmark]: Toolchain (without parser) took 879719.44ms. Allocated memory was 381.7MB in the beginning and 2.2GB in the end (delta: 1.8GB). Free memory was 323.3MB in the beginning and 617.9MB in the end (delta: -294.6MB). Peak memory consumption was 1.6GB. Max. memory is 16.0GB. [2022-01-19 08:55:21,355 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 381.7MB. Free memory is still 340.4MB. There was no memory consumed. Max. memory is 16.0GB. [2022-01-19 08:55:21,355 INFO L158 Benchmark]: CACSL2BoogieTranslator took 206.13ms. Allocated memory was 381.7MB in the beginning and 459.3MB in the end (delta: 77.6MB). Free memory was 323.2MB in the beginning and 428.0MB in the end (delta: -104.8MB). Peak memory consumption was 6.5MB. Max. memory is 16.0GB. [2022-01-19 08:55:21,355 INFO L158 Benchmark]: Boogie Procedure Inliner took 27.35ms. Allocated memory is still 459.3MB. Free memory was 428.0MB in the beginning and 425.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2022-01-19 08:55:21,355 INFO L158 Benchmark]: Boogie Preprocessor took 19.52ms. Allocated memory is still 459.3MB. Free memory was 425.9MB in the beginning and 423.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2022-01-19 08:55:21,356 INFO L158 Benchmark]: RCFGBuilder took 389.50ms. Allocated memory is still 459.3MB. Free memory was 423.8MB in the beginning and 401.8MB in the end (delta: 22.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.0GB. [2022-01-19 08:55:21,356 INFO L158 Benchmark]: TraceAbstraction took 879073.53ms. Allocated memory was 459.3MB in the beginning and 2.2GB in the end (delta: 1.7GB). Free memory was 401.8MB in the beginning and 617.9MB in the end (delta: -216.2MB). Peak memory consumption was 1.6GB. Max. memory is 16.0GB. [2022-01-19 08:55:21,357 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 381.7MB. Free memory is still 340.4MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 206.13ms. Allocated memory was 381.7MB in the beginning and 459.3MB in the end (delta: 77.6MB). Free memory was 323.2MB in the beginning and 428.0MB in the end (delta: -104.8MB). Peak memory consumption was 6.5MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 27.35ms. Allocated memory is still 459.3MB. Free memory was 428.0MB in the beginning and 425.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 19.52ms. Allocated memory is still 459.3MB. Free memory was 425.9MB in the beginning and 423.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 389.50ms. Allocated memory is still 459.3MB. Free memory was 423.8MB in the beginning and 401.8MB in the end (delta: 22.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.0GB. * TraceAbstraction took 879073.53ms. Allocated memory was 459.3MB in the beginning and 2.2GB in the end (delta: 1.7GB). Free memory was 401.8MB in the beginning and 617.9MB in the end (delta: -216.2MB). Peak memory consumption was 1.6GB. 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 - TimeoutResultAtElement [Line: 97]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while CegarLoopForPetriNet was analyzing trace of length 243 with TraceHistMax 1,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 23 for 44ms.. - TimeoutResultAtElement [Line: 87]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while CegarLoopForPetriNet was analyzing trace of length 243 with TraceHistMax 1,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 23 for 44ms.. - TimeoutResultAtElement [Line: 89]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while CegarLoopForPetriNet was analyzing trace of length 243 with TraceHistMax 1,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 23 for 44ms.. - TimeoutResultAtElement [Line: 88]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while CegarLoopForPetriNet was analyzing trace of length 243 with TraceHistMax 1,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 23 for 44ms.. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 312 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: 879.0s, OverallIterations: 10, TraceHistogramMax: 1, PathProgramHistogramMax: 6, EmptinessCheckTime: 0.0s, AutomataDifference: 7.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2099 SdHoareTripleChecker+Valid, 1.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2099 mSDsluCounter, 2235 SdHoareTripleChecker+Invalid, 1.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2045 mSDsCounter, 60 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3308 IncrementalHoareTripleChecker+Invalid, 3368 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 60 mSolverCounterUnsat, 511 mSDtfsCounter, 3308 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2682 GetRequests, 2506 SyntacticMatches, 8 SemanticMatches, 168 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 706 ImplicationChecksByTransitivity, 1.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2391occurred in iteration=9, InterpolantAutomatonStates: 96, 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: 0.3s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 4.6s InterpolantComputationTime, 3644 NumberOfCodeBlocks, 3531 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 4547 ConstructedInterpolants, 0 QuantifiedInterpolants, 10322 SizeOfPredicates, 49 NumberOfNonLiveVariables, 3361 ConjunctsInSsa, 55 ConjunctsInUnsatCore, 20 InterpolantComputations, 8 PerfectInterpolantSequences, 75/87 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown