/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-SemanticLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/goblint-regression/13-privatized_01-priv_nr_true.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-8d0d62b [2022-12-05 20:44:33,819 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-05 20:44:33,821 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-05 20:44:33,854 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-05 20:44:33,855 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-05 20:44:33,857 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-05 20:44:33,859 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-05 20:44:33,863 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-05 20:44:33,867 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-05 20:44:33,872 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-05 20:44:33,873 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-05 20:44:33,874 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-05 20:44:33,875 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-05 20:44:33,877 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-05 20:44:33,877 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-05 20:44:33,880 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-05 20:44:33,881 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-05 20:44:33,882 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-05 20:44:33,884 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-05 20:44:33,889 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-05 20:44:33,891 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-05 20:44:33,892 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-05 20:44:33,893 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-05 20:44:33,894 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-05 20:44:33,899 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-05 20:44:33,899 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-05 20:44:33,900 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-05 20:44:33,901 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-05 20:44:33,901 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-05 20:44:33,902 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... 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[2022-12-05 20:44:33,910 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-05 20:44:33,911 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-05 20:44:33,911 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-05 20:44:33,912 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-SemanticLbe.epf [2022-12-05 20:44:33,937 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-05 20:44:33,937 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-05 20:44:33,939 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-05 20:44:33,939 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-05 20:44:33,939 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-05 20:44:33,940 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-05 20:44:33,940 INFO L138 SettingsManager]: * Use SBE=true [2022-12-05 20:44:33,940 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-05 20:44:33,940 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-05 20:44:33,940 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-05 20:44:33,941 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-05 20:44:33,941 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-05 20:44:33,941 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-05 20:44:33,941 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-05 20:44:33,941 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-05 20:44:33,941 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-05 20:44:33,941 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-05 20:44:33,942 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-05 20:44:33,942 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-05 20:44:33,942 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-05 20:44:33,942 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-05 20:44:33,942 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-05 20:44:33,942 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-05 20:44:33,942 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-05 20:44:33,942 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-05 20:44:33,942 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-05 20:44:33,943 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-05 20:44:33,943 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-05 20:44:33,943 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-05 20:44:33,943 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-05 20:44:33,943 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-12-05 20:44:34,209 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-05 20:44:34,234 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-05 20:44:34,235 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-05 20:44:34,236 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-05 20:44:34,236 INFO L275 PluginConnector]: CDTParser initialized [2022-12-05 20:44:34,237 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_01-priv_nr_true.i [2022-12-05 20:44:35,217 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-05 20:44:35,438 INFO L351 CDTParser]: Found 1 translation units. [2022-12-05 20:44:35,438 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_01-priv_nr_true.i [2022-12-05 20:44:35,451 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2eb1b9e13/4f8b679c3a7c4d76a218c3c805121e87/FLAGf7082cc3a [2022-12-05 20:44:35,460 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2eb1b9e13/4f8b679c3a7c4d76a218c3c805121e87 [2022-12-05 20:44:35,462 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-05 20:44:35,463 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-05 20:44:35,463 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-05 20:44:35,463 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-05 20:44:35,465 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-05 20:44:35,466 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 08:44:35" (1/1) ... [2022-12-05 20:44:35,466 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f176162 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:44:35, skipping insertion in model container [2022-12-05 20:44:35,466 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 08:44:35" (1/1) ... [2022-12-05 20:44:35,470 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-05 20:44:35,501 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-05 20:44:35,613 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_01-priv_nr_true.i[1084,1097] [2022-12-05 20:44:35,741 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-05 20:44:35,751 INFO L203 MainTranslator]: Completed pre-run [2022-12-05 20:44:35,761 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_01-priv_nr_true.i[1084,1097] [2022-12-05 20:44:35,790 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-05 20:44:35,820 INFO L208 MainTranslator]: Completed translation [2022-12-05 20:44:35,820 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:44:35 WrapperNode [2022-12-05 20:44:35,821 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-05 20:44:35,822 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-05 20:44:35,823 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-05 20:44:35,823 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-05 20:44:35,828 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:44:35" (1/1) ... [2022-12-05 20:44:35,851 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:44:35" (1/1) ... [2022-12-05 20:44:35,872 INFO L138 Inliner]: procedures = 162, calls = 24, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 84 [2022-12-05 20:44:35,872 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-05 20:44:35,873 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-05 20:44:35,873 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-05 20:44:35,873 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-05 20:44:35,879 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:44:35" (1/1) ... [2022-12-05 20:44:35,879 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:44:35" (1/1) ... [2022-12-05 20:44:35,884 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:44:35" (1/1) ... [2022-12-05 20:44:35,885 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:44:35" (1/1) ... [2022-12-05 20:44:35,902 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:44:35" (1/1) ... [2022-12-05 20:44:35,903 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:44:35" (1/1) ... [2022-12-05 20:44:35,909 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:44:35" (1/1) ... [2022-12-05 20:44:35,910 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:44:35" (1/1) ... [2022-12-05 20:44:35,912 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-05 20:44:35,913 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-05 20:44:35,913 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-05 20:44:35,913 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-05 20:44:35,913 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:44:35" (1/1) ... [2022-12-05 20:44:35,921 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-05 20:44:35,930 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-05 20:44:35,941 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) [2022-12-05 20:44:35,948 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 [2022-12-05 20:44:35,972 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-05 20:44:35,972 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-05 20:44:35,972 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-12-05 20:44:35,973 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-05 20:44:35,973 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-05 20:44:35,973 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-12-05 20:44:35,973 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-12-05 20:44:35,973 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-05 20:44:35,973 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-05 20:44:35,973 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-05 20:44:35,973 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-05 20:44:35,974 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-05 20:44:36,128 INFO L236 CfgBuilder]: Building ICFG [2022-12-05 20:44:36,130 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-05 20:44:36,272 INFO L277 CfgBuilder]: Performing block encoding [2022-12-05 20:44:36,277 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-05 20:44:36,277 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-05 20:44:36,278 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 08:44:36 BoogieIcfgContainer [2022-12-05 20:44:36,278 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-05 20:44:36,280 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-05 20:44:36,280 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-05 20:44:36,282 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-05 20:44:36,282 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.12 08:44:35" (1/3) ... [2022-12-05 20:44:36,283 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a758bb5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.12 08:44:36, skipping insertion in model container [2022-12-05 20:44:36,283 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:44:35" (2/3) ... [2022-12-05 20:44:36,283 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a758bb5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.12 08:44:36, skipping insertion in model container [2022-12-05 20:44:36,283 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 08:44:36" (3/3) ... [2022-12-05 20:44:36,284 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_01-priv_nr_true.i [2022-12-05 20:44:36,297 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-05 20:44:36,297 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-12-05 20:44:36,297 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-05 20:44:36,329 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-12-05 20:44:36,352 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 93 places, 93 transitions, 194 flow [2022-12-05 20:44:36,378 INFO L130 PetriNetUnfolder]: 4/92 cut-off events. [2022-12-05 20:44:36,378 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-05 20:44:36,382 INFO L83 FinitePrefix]: Finished finitePrefix Result has 97 conditions, 92 events. 4/92 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 76 event pairs, 0 based on Foata normal form. 0/84 useless extension candidates. Maximal degree in co-relation 46. Up to 2 conditions per place. [2022-12-05 20:44:36,382 INFO L82 GeneralOperation]: Start removeDead. Operand has 93 places, 93 transitions, 194 flow [2022-12-05 20:44:36,385 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 85 places, 85 transitions, 173 flow [2022-12-05 20:44:36,386 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-05 20:44:36,398 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 85 places, 85 transitions, 173 flow [2022-12-05 20:44:36,401 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 85 places, 85 transitions, 173 flow [2022-12-05 20:44:36,414 INFO L130 PetriNetUnfolder]: 4/85 cut-off events. [2022-12-05 20:44:36,414 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-05 20:44:36,415 INFO L83 FinitePrefix]: Finished finitePrefix Result has 89 conditions, 85 events. 4/85 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 76 event pairs, 0 based on Foata normal form. 0/77 useless extension candidates. Maximal degree in co-relation 46. Up to 2 conditions per place. [2022-12-05 20:44:36,416 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 85 places, 85 transitions, 173 flow [2022-12-05 20:44:36,417 INFO L188 LiptonReduction]: Number of co-enabled transitions 1040 [2022-12-05 20:44:39,842 INFO L203 LiptonReduction]: Total number of compositions: 73 [2022-12-05 20:44:39,853 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-05 20:44:39,857 INFO L357 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@2ad7ecd2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-05 20:44:39,857 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2022-12-05 20:44:39,858 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2022-12-05 20:44:39,858 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-05 20:44:39,858 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 20:44:39,859 INFO L213 CegarLoopForPetriNet]: trace histogram [1] [2022-12-05 20:44:39,859 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-05 20:44:39,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 20:44:39,862 INFO L85 PathProgramCache]: Analyzing trace with hash 345, now seen corresponding path program 1 times [2022-12-05 20:44:39,868 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 20:44:39,868 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [206074858] [2022-12-05 20:44:39,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 20:44:39,869 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 20:44:39,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 20:44:39,937 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 20:44:39,937 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 20:44:39,937 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [206074858] [2022-12-05 20:44:39,938 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [206074858] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 20:44:39,938 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 20:44:39,938 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-12-05 20:44:39,939 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [772899206] [2022-12-05 20:44:39,939 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 20:44:39,945 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-05 20:44:39,945 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 20:44:39,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-05 20:44:39,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-05 20:44:39,959 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 1 out of 27 [2022-12-05 20:44:39,960 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 28 places, 27 transitions, 57 flow. Second operand has 2 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 20:44:39,960 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 20:44:39,960 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1 of 27 [2022-12-05 20:44:39,961 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 20:44:40,030 INFO L130 PetriNetUnfolder]: 72/172 cut-off events. [2022-12-05 20:44:40,031 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-05 20:44:40,031 INFO L83 FinitePrefix]: Finished finitePrefix Result has 340 conditions, 172 events. 72/172 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 592 event pairs, 72 based on Foata normal form. 0/124 useless extension candidates. Maximal degree in co-relation 331. Up to 164 conditions per place. [2022-12-05 20:44:40,033 INFO L137 encePairwiseOnDemand]: 20/27 looper letters, 19 selfloop transitions, 0 changer transitions 0/20 dead transitions. [2022-12-05 20:44:40,034 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 25 places, 20 transitions, 81 flow [2022-12-05 20:44:40,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-05 20:44:40,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-12-05 20:44:40,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 28 transitions. [2022-12-05 20:44:40,042 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.5185185185185185 [2022-12-05 20:44:40,043 INFO L175 Difference]: Start difference. First operand has 28 places, 27 transitions, 57 flow. Second operand 2 states and 28 transitions. [2022-12-05 20:44:40,044 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 25 places, 20 transitions, 81 flow [2022-12-05 20:44:40,045 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 24 places, 20 transitions, 80 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-05 20:44:40,046 INFO L231 Difference]: Finished difference. Result has 24 places, 20 transitions, 42 flow [2022-12-05 20:44:40,048 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=42, PETRI_DIFFERENCE_MINUEND_PLACES=23, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=42, PETRI_PLACES=24, PETRI_TRANSITIONS=20} [2022-12-05 20:44:40,050 INFO L294 CegarLoopForPetriNet]: 28 programPoint places, -4 predicate places. [2022-12-05 20:44:40,050 INFO L495 AbstractCegarLoop]: Abstraction has has 24 places, 20 transitions, 42 flow [2022-12-05 20:44:40,051 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 20:44:40,051 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 20:44:40,051 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2022-12-05 20:44:40,051 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-05 20:44:40,052 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-05 20:44:40,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 20:44:40,058 INFO L85 PathProgramCache]: Analyzing trace with hash 10839787, now seen corresponding path program 1 times [2022-12-05 20:44:40,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 20:44:40,059 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [177489397] [2022-12-05 20:44:40,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 20:44:40,059 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 20:44:40,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 20:44:40,234 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 20:44:40,234 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 20:44:40,235 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [177489397] [2022-12-05 20:44:40,235 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [177489397] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 20:44:40,235 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 20:44:40,235 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-05 20:44:40,235 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [564278678] [2022-12-05 20:44:40,235 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 20:44:40,236 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-05 20:44:40,236 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 20:44:40,236 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-05 20:44:40,236 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-05 20:44:40,237 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 27 [2022-12-05 20:44:40,237 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 24 places, 20 transitions, 42 flow. Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 20:44:40,237 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 20:44:40,237 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 27 [2022-12-05 20:44:40,237 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 20:44:40,295 INFO L130 PetriNetUnfolder]: 77/174 cut-off events. [2022-12-05 20:44:40,296 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-05 20:44:40,296 INFO L83 FinitePrefix]: Finished finitePrefix Result has 353 conditions, 174 events. 77/174 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 590 event pairs, 38 based on Foata normal form. 0/129 useless extension candidates. Maximal degree in co-relation 350. Up to 149 conditions per place. [2022-12-05 20:44:40,297 INFO L137 encePairwiseOnDemand]: 23/27 looper letters, 25 selfloop transitions, 3 changer transitions 0/28 dead transitions. [2022-12-05 20:44:40,297 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 26 places, 28 transitions, 114 flow [2022-12-05 20:44:40,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-05 20:44:40,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-05 20:44:40,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 29 transitions. [2022-12-05 20:44:40,298 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.35802469135802467 [2022-12-05 20:44:40,298 INFO L175 Difference]: Start difference. First operand has 24 places, 20 transitions, 42 flow. Second operand 3 states and 29 transitions. [2022-12-05 20:44:40,298 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 26 places, 28 transitions, 114 flow [2022-12-05 20:44:40,298 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 26 places, 28 transitions, 114 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-12-05 20:44:40,299 INFO L231 Difference]: Finished difference. Result has 27 places, 22 transitions, 61 flow [2022-12-05 20:44:40,299 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=42, PETRI_DIFFERENCE_MINUEND_PLACES=24, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=61, PETRI_PLACES=27, PETRI_TRANSITIONS=22} [2022-12-05 20:44:40,300 INFO L294 CegarLoopForPetriNet]: 28 programPoint places, -1 predicate places. [2022-12-05 20:44:40,300 INFO L495 AbstractCegarLoop]: Abstraction has has 27 places, 22 transitions, 61 flow [2022-12-05 20:44:40,300 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 20:44:40,300 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 20:44:40,300 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2022-12-05 20:44:40,300 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-05 20:44:40,301 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-05 20:44:40,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 20:44:40,301 INFO L85 PathProgramCache]: Analyzing trace with hash 1826144459, now seen corresponding path program 1 times [2022-12-05 20:44:40,301 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 20:44:40,301 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2135247875] [2022-12-05 20:44:40,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 20:44:40,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 20:44:40,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 20:44:40,370 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 20:44:40,371 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 20:44:40,371 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2135247875] [2022-12-05 20:44:40,371 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2135247875] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 20:44:40,371 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 20:44:40,371 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-05 20:44:40,371 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [404672782] [2022-12-05 20:44:40,371 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 20:44:40,372 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-05 20:44:40,372 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 20:44:40,372 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-05 20:44:40,372 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-05 20:44:40,372 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 27 [2022-12-05 20:44:40,372 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 27 places, 22 transitions, 61 flow. Second operand has 5 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 20:44:40,373 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 20:44:40,373 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 27 [2022-12-05 20:44:40,373 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 20:44:40,475 INFO L130 PetriNetUnfolder]: 88/200 cut-off events. [2022-12-05 20:44:40,475 INFO L131 PetriNetUnfolder]: For 16/16 co-relation queries the response was YES. [2022-12-05 20:44:40,475 INFO L83 FinitePrefix]: Finished finitePrefix Result has 444 conditions, 200 events. 88/200 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 748 event pairs, 24 based on Foata normal form. 0/163 useless extension candidates. Maximal degree in co-relation 439. Up to 120 conditions per place. [2022-12-05 20:44:40,476 INFO L137 encePairwiseOnDemand]: 20/27 looper letters, 33 selfloop transitions, 9 changer transitions 7/49 dead transitions. [2022-12-05 20:44:40,476 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 49 transitions, 222 flow [2022-12-05 20:44:40,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-05 20:44:40,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-05 20:44:40,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 50 transitions. [2022-12-05 20:44:40,479 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.30864197530864196 [2022-12-05 20:44:40,479 INFO L175 Difference]: Start difference. First operand has 27 places, 22 transitions, 61 flow. Second operand 6 states and 50 transitions. [2022-12-05 20:44:40,479 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 49 transitions, 222 flow [2022-12-05 20:44:40,479 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 49 transitions, 218 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-05 20:44:40,480 INFO L231 Difference]: Finished difference. Result has 34 places, 27 transitions, 114 flow [2022-12-05 20:44:40,480 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=58, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=114, PETRI_PLACES=34, PETRI_TRANSITIONS=27} [2022-12-05 20:44:40,481 INFO L294 CegarLoopForPetriNet]: 28 programPoint places, 6 predicate places. [2022-12-05 20:44:40,481 INFO L495 AbstractCegarLoop]: Abstraction has has 34 places, 27 transitions, 114 flow [2022-12-05 20:44:40,481 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 20:44:40,481 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 20:44:40,481 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-05 20:44:40,481 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-05 20:44:40,481 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-05 20:44:40,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 20:44:40,482 INFO L85 PathProgramCache]: Analyzing trace with hash 805650068, now seen corresponding path program 1 times [2022-12-05 20:44:40,482 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 20:44:40,482 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [910651736] [2022-12-05 20:44:40,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 20:44:40,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 20:44:40,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 20:44:40,522 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 20:44:40,523 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 20:44:40,523 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [910651736] [2022-12-05 20:44:40,523 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [910651736] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 20:44:40,523 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 20:44:40,523 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-05 20:44:40,523 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [231450846] [2022-12-05 20:44:40,523 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 20:44:40,523 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-05 20:44:40,523 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 20:44:40,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-05 20:44:40,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-05 20:44:40,524 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 1 out of 27 [2022-12-05 20:44:40,524 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 27 transitions, 114 flow. Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 20:44:40,524 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 20:44:40,524 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1 of 27 [2022-12-05 20:44:40,524 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 20:44:40,544 INFO L130 PetriNetUnfolder]: 8/47 cut-off events. [2022-12-05 20:44:40,544 INFO L131 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2022-12-05 20:44:40,544 INFO L83 FinitePrefix]: Finished finitePrefix Result has 127 conditions, 47 events. 8/47 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 86 event pairs, 1 based on Foata normal form. 5/50 useless extension candidates. Maximal degree in co-relation 119. Up to 36 conditions per place. [2022-12-05 20:44:40,545 INFO L137 encePairwiseOnDemand]: 23/27 looper letters, 18 selfloop transitions, 4 changer transitions 1/24 dead transitions. [2022-12-05 20:44:40,545 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 24 transitions, 133 flow [2022-12-05 20:44:40,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-05 20:44:40,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-05 20:44:40,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 24 transitions. [2022-12-05 20:44:40,546 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.2962962962962963 [2022-12-05 20:44:40,546 INFO L175 Difference]: Start difference. First operand has 34 places, 27 transitions, 114 flow. Second operand 3 states and 24 transitions. [2022-12-05 20:44:40,546 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 24 transitions, 133 flow [2022-12-05 20:44:40,546 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 24 transitions, 121 flow, removed 3 selfloop flow, removed 3 redundant places. [2022-12-05 20:44:40,547 INFO L231 Difference]: Finished difference. Result has 31 places, 22 transitions, 79 flow [2022-12-05 20:44:40,547 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=75, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=79, PETRI_PLACES=31, PETRI_TRANSITIONS=22} [2022-12-05 20:44:40,547 INFO L294 CegarLoopForPetriNet]: 28 programPoint places, 3 predicate places. [2022-12-05 20:44:40,548 INFO L495 AbstractCegarLoop]: Abstraction has has 31 places, 22 transitions, 79 flow [2022-12-05 20:44:40,548 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 20:44:40,548 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 20:44:40,548 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-05 20:44:40,548 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-05 20:44:40,548 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-05 20:44:40,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 20:44:40,549 INFO L85 PathProgramCache]: Analyzing trace with hash 805070785, now seen corresponding path program 1 times [2022-12-05 20:44:40,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 20:44:40,549 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1683614943] [2022-12-05 20:44:40,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 20:44:40,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 20:44:40,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 20:44:40,580 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 20:44:40,581 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 20:44:40,581 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1683614943] [2022-12-05 20:44:40,581 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1683614943] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 20:44:40,581 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 20:44:40,581 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-05 20:44:40,581 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [900634789] [2022-12-05 20:44:40,581 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 20:44:40,581 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-05 20:44:40,581 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 20:44:40,582 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-05 20:44:40,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-05 20:44:40,582 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 27 [2022-12-05 20:44:40,582 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 22 transitions, 79 flow. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 20:44:40,582 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 20:44:40,582 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 27 [2022-12-05 20:44:40,582 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 20:44:40,616 INFO L130 PetriNetUnfolder]: 6/41 cut-off events. [2022-12-05 20:44:40,616 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-05 20:44:40,616 INFO L83 FinitePrefix]: Finished finitePrefix Result has 115 conditions, 41 events. 6/41 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 62 event pairs, 2 based on Foata normal form. 0/41 useless extension candidates. Maximal degree in co-relation 108. Up to 20 conditions per place. [2022-12-05 20:44:40,617 INFO L137 encePairwiseOnDemand]: 24/27 looper letters, 18 selfloop transitions, 2 changer transitions 6/26 dead transitions. [2022-12-05 20:44:40,617 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 26 transitions, 141 flow [2022-12-05 20:44:40,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-05 20:44:40,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-05 20:44:40,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 26 transitions. [2022-12-05 20:44:40,617 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.24074074074074073 [2022-12-05 20:44:40,617 INFO L175 Difference]: Start difference. First operand has 31 places, 22 transitions, 79 flow. Second operand 4 states and 26 transitions. [2022-12-05 20:44:40,618 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 26 transitions, 141 flow [2022-12-05 20:44:40,618 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 26 transitions, 136 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-05 20:44:40,618 INFO L231 Difference]: Finished difference. Result has 32 places, 19 transitions, 71 flow [2022-12-05 20:44:40,618 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=73, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=71, PETRI_PLACES=32, PETRI_TRANSITIONS=19} [2022-12-05 20:44:40,619 INFO L294 CegarLoopForPetriNet]: 28 programPoint places, 4 predicate places. [2022-12-05 20:44:40,619 INFO L495 AbstractCegarLoop]: Abstraction has has 32 places, 19 transitions, 71 flow [2022-12-05 20:44:40,619 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 20:44:40,619 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 20:44:40,619 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 20:44:40,619 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-05 20:44:40,620 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-05 20:44:40,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 20:44:40,620 INFO L85 PathProgramCache]: Analyzing trace with hash -651579760, now seen corresponding path program 1 times [2022-12-05 20:44:40,620 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 20:44:40,620 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1939517040] [2022-12-05 20:44:40,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 20:44:40,620 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 20:44:40,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 20:44:40,732 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 20:44:40,732 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 20:44:40,732 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1939517040] [2022-12-05 20:44:40,733 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1939517040] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 20:44:40,733 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 20:44:40,733 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-05 20:44:40,733 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [952346348] [2022-12-05 20:44:40,733 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 20:44:40,733 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-05 20:44:40,733 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 20:44:40,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-05 20:44:40,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-05 20:44:40,734 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 27 [2022-12-05 20:44:40,734 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 19 transitions, 71 flow. Second operand has 6 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 20:44:40,734 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 20:44:40,734 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 27 [2022-12-05 20:44:40,734 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 20:44:40,782 INFO L130 PetriNetUnfolder]: 0/23 cut-off events. [2022-12-05 20:44:40,782 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-05 20:44:40,782 INFO L83 FinitePrefix]: Finished finitePrefix Result has 71 conditions, 23 events. 0/23 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 19 event pairs, 0 based on Foata normal form. 1/24 useless extension candidates. Maximal degree in co-relation 0. Up to 11 conditions per place. [2022-12-05 20:44:40,783 INFO L137 encePairwiseOnDemand]: 19/27 looper letters, 10 selfloop transitions, 2 changer transitions 9/21 dead transitions. [2022-12-05 20:44:40,783 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 21 transitions, 116 flow [2022-12-05 20:44:40,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-05 20:44:40,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-12-05 20:44:40,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 22 transitions. [2022-12-05 20:44:40,784 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.1164021164021164 [2022-12-05 20:44:40,784 INFO L175 Difference]: Start difference. First operand has 32 places, 19 transitions, 71 flow. Second operand 7 states and 22 transitions. [2022-12-05 20:44:40,784 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 21 transitions, 116 flow [2022-12-05 20:44:40,784 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 21 transitions, 113 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-05 20:44:40,784 INFO L231 Difference]: Finished difference. Result has 34 places, 12 transitions, 46 flow [2022-12-05 20:44:40,785 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=64, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=46, PETRI_PLACES=34, PETRI_TRANSITIONS=12} [2022-12-05 20:44:40,785 INFO L294 CegarLoopForPetriNet]: 28 programPoint places, 6 predicate places. [2022-12-05 20:44:40,785 INFO L495 AbstractCegarLoop]: Abstraction has has 34 places, 12 transitions, 46 flow [2022-12-05 20:44:40,785 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 20:44:40,785 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 20:44:40,785 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 20:44:40,785 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-05 20:44:40,786 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-05 20:44:40,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 20:44:40,786 INFO L85 PathProgramCache]: Analyzing trace with hash 1747500503, now seen corresponding path program 1 times [2022-12-05 20:44:40,786 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 20:44:40,786 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1052855609] [2022-12-05 20:44:40,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 20:44:40,786 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 20:44:40,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 20:44:40,912 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 20:44:40,912 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 20:44:40,912 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1052855609] [2022-12-05 20:44:40,913 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1052855609] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 20:44:40,913 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 20:44:40,913 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-05 20:44:40,913 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1110181030] [2022-12-05 20:44:40,913 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 20:44:40,913 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-05 20:44:40,913 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 20:44:40,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-05 20:44:40,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-05 20:44:40,914 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 27 [2022-12-05 20:44:40,914 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 12 transitions, 46 flow. Second operand has 6 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 20:44:40,914 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 20:44:40,914 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 27 [2022-12-05 20:44:40,914 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 20:44:40,954 INFO L130 PetriNetUnfolder]: 0/12 cut-off events. [2022-12-05 20:44:40,954 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-05 20:44:40,955 INFO L83 FinitePrefix]: Finished finitePrefix Result has 43 conditions, 12 events. 0/12 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 1 event pairs, 0 based on Foata normal form. 1/13 useless extension candidates. Maximal degree in co-relation 0. Up to 4 conditions per place. [2022-12-05 20:44:40,955 INFO L137 encePairwiseOnDemand]: 20/27 looper letters, 0 selfloop transitions, 0 changer transitions 12/12 dead transitions. [2022-12-05 20:44:40,955 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 29 places, 12 transitions, 69 flow [2022-12-05 20:44:40,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-05 20:44:40,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-12-05 20:44:40,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 13 transitions. [2022-12-05 20:44:40,956 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.06878306878306878 [2022-12-05 20:44:40,956 INFO L175 Difference]: Start difference. First operand has 34 places, 12 transitions, 46 flow. Second operand 7 states and 13 transitions. [2022-12-05 20:44:40,956 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 29 places, 12 transitions, 69 flow [2022-12-05 20:44:40,957 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 25 places, 12 transitions, 59 flow, removed 1 selfloop flow, removed 4 redundant places. [2022-12-05 20:44:40,957 INFO L231 Difference]: Finished difference. Result has 25 places, 0 transitions, 0 flow [2022-12-05 20:44:40,957 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=32, PETRI_DIFFERENCE_MINUEND_PLACES=19, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=11, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=11, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=0, PETRI_PLACES=25, PETRI_TRANSITIONS=0} [2022-12-05 20:44:40,958 INFO L294 CegarLoopForPetriNet]: 28 programPoint places, -3 predicate places. [2022-12-05 20:44:40,958 INFO L495 AbstractCegarLoop]: Abstraction has has 25 places, 0 transitions, 0 flow [2022-12-05 20:44:40,958 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 20:44:40,962 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (6 of 7 remaining) [2022-12-05 20:44:40,962 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (5 of 7 remaining) [2022-12-05 20:44:40,962 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 7 remaining) [2022-12-05 20:44:40,962 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 7 remaining) [2022-12-05 20:44:40,963 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONERROR_FUNCTION (2 of 7 remaining) [2022-12-05 20:44:40,963 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 7 remaining) [2022-12-05 20:44:40,963 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONERROR_FUNCTION (0 of 7 remaining) [2022-12-05 20:44:40,963 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-05 20:44:40,963 INFO L458 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2022-12-05 20:44:40,967 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-05 20:44:40,967 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-05 20:44:40,974 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.12 08:44:40 BasicIcfg [2022-12-05 20:44:40,974 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-05 20:44:40,974 INFO L158 Benchmark]: Toolchain (without parser) took 5511.48ms. Allocated memory was 192.9MB in the beginning and 231.7MB in the end (delta: 38.8MB). Free memory was 167.6MB in the beginning and 162.6MB in the end (delta: 5.0MB). Peak memory consumption was 44.8MB. Max. memory is 8.0GB. [2022-12-05 20:44:40,974 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 127.9MB. Free memory is still 109.6MB. There was no memory consumed. Max. memory is 8.0GB. [2022-12-05 20:44:40,976 INFO L158 Benchmark]: CACSL2BoogieTranslator took 358.21ms. Allocated memory is still 192.9MB. Free memory was 167.6MB in the beginning and 148.6MB in the end (delta: 19.0MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. [2022-12-05 20:44:40,976 INFO L158 Benchmark]: Boogie Procedure Inliner took 50.11ms. Allocated memory is still 192.9MB. Free memory was 148.6MB in the beginning and 146.6MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-05 20:44:40,976 INFO L158 Benchmark]: Boogie Preprocessor took 39.01ms. Allocated memory is still 192.9MB. Free memory was 146.6MB in the beginning and 145.1MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-12-05 20:44:40,976 INFO L158 Benchmark]: RCFGBuilder took 365.77ms. Allocated memory is still 192.9MB. Free memory was 145.1MB in the beginning and 167.9MB in the end (delta: -22.8MB). Peak memory consumption was 15.9MB. Max. memory is 8.0GB. [2022-12-05 20:44:40,977 INFO L158 Benchmark]: TraceAbstraction took 4694.10ms. Allocated memory was 192.9MB in the beginning and 231.7MB in the end (delta: 38.8MB). Free memory was 167.3MB in the beginning and 162.6MB in the end (delta: 4.8MB). Peak memory consumption was 43.6MB. Max. memory is 8.0GB. [2022-12-05 20:44:40,978 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 127.9MB. Free memory is still 109.6MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 358.21ms. Allocated memory is still 192.9MB. Free memory was 167.6MB in the beginning and 148.6MB in the end (delta: 19.0MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 50.11ms. Allocated memory is still 192.9MB. Free memory was 148.6MB in the beginning and 146.6MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 39.01ms. Allocated memory is still 192.9MB. Free memory was 146.6MB in the beginning and 145.1MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 365.77ms. Allocated memory is still 192.9MB. Free memory was 145.1MB in the beginning and 167.9MB in the end (delta: -22.8MB). Peak memory consumption was 15.9MB. Max. memory is 8.0GB. * TraceAbstraction took 4694.10ms. Allocated memory was 192.9MB in the beginning and 231.7MB in the end (delta: 38.8MB). Free memory was 167.3MB in the beginning and 162.6MB in the end (delta: 4.8MB). Peak memory consumption was 43.6MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.4s, 85 PlacesBefore, 28 PlacesAfterwards, 85 TransitionsBefore, 27 TransitionsAfterwards, 1040 CoEnabledTransitionPairs, 4 FixpointIterations, 0 TrivialSequentialCompositions, 10 ConcurrentSequentialCompositions, 35 TrivialYvCompositions, 27 ConcurrentYvCompositions, 1 ChoiceCompositions, 73 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1535, independent: 1421, independent conditional: 1421, independent unconditional: 0, dependent: 114, dependent conditional: 114, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 1535, independent: 1421, independent conditional: 0, independent unconditional: 1421, dependent: 114, dependent conditional: 0, dependent unconditional: 114, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 1535, independent: 1421, independent conditional: 0, independent unconditional: 1421, dependent: 114, dependent conditional: 0, dependent unconditional: 114, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 1535, independent: 1421, independent conditional: 0, independent unconditional: 1421, dependent: 114, dependent conditional: 0, dependent unconditional: 114, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 881, independent: 846, independent conditional: 0, independent unconditional: 846, dependent: 35, dependent conditional: 0, dependent unconditional: 35, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 881, independent: 768, independent conditional: 0, independent unconditional: 768, dependent: 113, dependent conditional: 0, dependent unconditional: 113, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 113, independent: 78, independent conditional: 0, independent unconditional: 78, dependent: 35, dependent conditional: 0, dependent unconditional: 35, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 106, independent: 51, independent conditional: 0, independent unconditional: 51, dependent: 56, dependent conditional: 0, dependent unconditional: 56, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1535, independent: 575, independent conditional: 0, independent unconditional: 575, dependent: 79, dependent conditional: 0, dependent unconditional: 79, unknown: 881, unknown conditional: 0, unknown unconditional: 881] , Statistics on independence cache: Total cache size (in pairs): 1868, Positive cache size: 1833, Positive conditional cache size: 0, Positive unconditional cache size: 1833, Negative cache size: 35, Negative conditional cache size: 0, Negative unconditional cache size: 35, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1 - PositiveResult [Line: 19]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 19]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 19]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 19]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 116 locations, 7 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: 4.6s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.5s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 62 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 62 mSDsluCounter, 5 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 371 IncrementalHoareTripleChecker+Invalid, 374 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 3 mSDtfsCounter, 371 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 28 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=114occurred in iteration=3, InterpolantAutomatonStates: 32, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 48 NumberOfCodeBlocks, 48 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 41 ConstructedInterpolants, 0 QuantifiedInterpolants, 228 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-12-05 20:44:40,991 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...