/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-NoLbe.epf --traceabstraction.use.on-demand.petri.net.difference true -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread/bigshot_s2.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-8d0d62b [2022-12-06 16:01:05,657 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-06 16:01:05,664 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-06 16:01:05,717 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-06 16:01:05,717 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-06 16:01:05,719 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-06 16:01:05,722 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-06 16:01:05,724 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-06 16:01:05,728 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-06 16:01:05,748 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-06 16:01:05,749 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-06 16:01:05,750 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-06 16:01:05,750 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-06 16:01:05,752 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-06 16:01:05,753 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-06 16:01:05,755 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-06 16:01:05,756 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-06 16:01:05,756 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-06 16:01:05,759 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-06 16:01:05,762 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-06 16:01:05,763 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-06 16:01:05,764 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-06 16:01:05,765 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-06 16:01:05,765 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-06 16:01:05,770 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-06 16:01:05,771 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-06 16:01:05,771 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-06 16:01:05,772 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-06 16:01:05,795 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-06 16:01:05,796 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-06 16:01:05,796 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-06 16:01:05,797 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-06 16:01:05,797 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-06 16:01:05,798 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-06 16:01:05,798 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-06 16:01:05,798 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-06 16:01:05,799 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-06 16:01:05,799 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-06 16:01:05,799 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-06 16:01:05,800 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-06 16:01:05,800 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-06 16:01:05,812 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf [2022-12-06 16:01:05,832 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-06 16:01:05,832 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-06 16:01:05,833 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-06 16:01:05,833 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-06 16:01:05,833 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-06 16:01:05,833 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-06 16:01:05,834 INFO L138 SettingsManager]: * Use SBE=true [2022-12-06 16:01:05,834 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-06 16:01:05,834 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-06 16:01:05,834 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-06 16:01:05,834 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-06 16:01:05,834 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-06 16:01:05,834 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-06 16:01:05,834 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-06 16:01:05,835 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-06 16:01:05,835 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-06 16:01:05,835 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-06 16:01:05,835 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-06 16:01:05,835 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-06 16:01:05,835 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-06 16:01:05,835 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-06 16:01:05,836 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-06 16:01:05,836 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-06 16:01:05,836 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-06 16:01:05,836 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-06 16:01:05,836 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-06 16:01:05,836 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-06 16:01:05,836 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-06 16:01:05,836 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-06 16:01:05,836 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-12-06 16:01:05,837 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-06 16:01:05,837 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use on-demand Petri net difference -> true [2022-12-06 16:01:06,119 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-06 16:01:06,138 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-06 16:01:06,140 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-06 16:01:06,141 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-06 16:01:06,142 INFO L275 PluginConnector]: CDTParser initialized [2022-12-06 16:01:06,142 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread/bigshot_s2.i [2022-12-06 16:01:07,128 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-06 16:01:07,426 INFO L351 CDTParser]: Found 1 translation units. [2022-12-06 16:01:07,431 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread/bigshot_s2.i [2022-12-06 16:01:07,449 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/45cbca132/28aff07e270c4386a7838318ce16d59a/FLAGefcc30d41 [2022-12-06 16:01:07,472 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/45cbca132/28aff07e270c4386a7838318ce16d59a [2022-12-06 16:01:07,474 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-06 16:01:07,475 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-06 16:01:07,479 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-06 16:01:07,479 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-06 16:01:07,481 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-06 16:01:07,482 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 04:01:07" (1/1) ... [2022-12-06 16:01:07,483 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@253378d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:01:07, skipping insertion in model container [2022-12-06 16:01:07,483 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 04:01:07" (1/1) ... [2022-12-06 16:01:07,488 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-06 16:01:07,525 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-06 16:01:07,893 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread/bigshot_s2.i[55203,55216] [2022-12-06 16:01:07,908 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-06 16:01:07,915 INFO L203 MainTranslator]: Completed pre-run [2022-12-06 16:01:07,954 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread/bigshot_s2.i[55203,55216] [2022-12-06 16:01:07,958 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-06 16:01:08,018 INFO L208 MainTranslator]: Completed translation [2022-12-06 16:01:08,019 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:01:08 WrapperNode [2022-12-06 16:01:08,019 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-06 16:01:08,020 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-06 16:01:08,020 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-06 16:01:08,020 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-06 16:01:08,027 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:01:08" (1/1) ... [2022-12-06 16:01:08,043 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:01:08" (1/1) ... [2022-12-06 16:01:08,057 INFO L138 Inliner]: procedures = 323, calls = 33, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 71 [2022-12-06 16:01:08,057 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-06 16:01:08,058 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-06 16:01:08,058 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-06 16:01:08,058 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-06 16:01:08,063 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:01:08" (1/1) ... [2022-12-06 16:01:08,063 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:01:08" (1/1) ... [2022-12-06 16:01:08,075 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:01:08" (1/1) ... [2022-12-06 16:01:08,075 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:01:08" (1/1) ... [2022-12-06 16:01:08,080 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:01:08" (1/1) ... [2022-12-06 16:01:08,082 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:01:08" (1/1) ... [2022-12-06 16:01:08,083 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:01:08" (1/1) ... [2022-12-06 16:01:08,083 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:01:08" (1/1) ... [2022-12-06 16:01:08,085 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-06 16:01:08,091 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-06 16:01:08,091 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-06 16:01:08,091 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-06 16:01:08,092 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:01:08" (1/1) ... [2022-12-06 16:01:08,096 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-06 16:01:08,104 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 16:01:08,114 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) [2022-12-06 16:01:08,128 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 [2022-12-06 16:01:08,150 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-06 16:01:08,151 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-06 16:01:08,151 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-12-06 16:01:08,151 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-06 16:01:08,151 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-12-06 16:01:08,151 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-12-06 16:01:08,151 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-12-06 16:01:08,151 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-12-06 16:01:08,151 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-06 16:01:08,151 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-06 16:01:08,151 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-06 16:01:08,151 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-06 16:01:08,151 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-06 16:01:08,152 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-06 16:01:08,153 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-06 16:01:08,309 INFO L236 CfgBuilder]: Building ICFG [2022-12-06 16:01:08,310 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-06 16:01:08,416 INFO L277 CfgBuilder]: Performing block encoding [2022-12-06 16:01:08,421 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-06 16:01:08,421 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-06 16:01:08,422 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 04:01:08 BoogieIcfgContainer [2022-12-06 16:01:08,422 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-06 16:01:08,423 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-06 16:01:08,424 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-06 16:01:08,425 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-06 16:01:08,426 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.12 04:01:07" (1/3) ... [2022-12-06 16:01:08,426 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e4cb551 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 04:01:08, skipping insertion in model container [2022-12-06 16:01:08,426 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:01:08" (2/3) ... [2022-12-06 16:01:08,426 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e4cb551 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 04:01:08, skipping insertion in model container [2022-12-06 16:01:08,426 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 04:01:08" (3/3) ... [2022-12-06 16:01:08,427 INFO L112 eAbstractionObserver]: Analyzing ICFG bigshot_s2.i [2022-12-06 16:01:08,439 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-06 16:01:08,439 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-06 16:01:08,439 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-06 16:01:08,491 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-12-06 16:01:08,523 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 85 places, 82 transitions, 180 flow [2022-12-06 16:01:08,604 INFO L130 PetriNetUnfolder]: 4/80 cut-off events. [2022-12-06 16:01:08,604 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-06 16:01:08,607 INFO L83 FinitePrefix]: Finished finitePrefix Result has 89 conditions, 80 events. 4/80 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 47 event pairs, 0 based on Foata normal form. 0/75 useless extension candidates. Maximal degree in co-relation 48. Up to 2 conditions per place. [2022-12-06 16:01:08,607 INFO L82 GeneralOperation]: Start removeDead. Operand has 85 places, 82 transitions, 180 flow [2022-12-06 16:01:08,611 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 73 places, 69 transitions, 150 flow [2022-12-06 16:01:08,621 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-06 16:01:08,626 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;@66f63a9a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-06 16:01:08,627 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-12-06 16:01:08,652 INFO L130 PetriNetUnfolder]: 3/68 cut-off events. [2022-12-06 16:01:08,652 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-06 16:01:08,652 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:01:08,653 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 16:01:08,653 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 16:01:08,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:01:08,657 INFO L85 PathProgramCache]: Analyzing trace with hash 803810916, now seen corresponding path program 1 times [2022-12-06 16:01:08,663 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:01:08,663 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [480221607] [2022-12-06 16:01:08,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:01:08,664 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:01:08,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:01:08,979 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 16:01:08,980 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 16:01:08,980 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [480221607] [2022-12-06 16:01:08,981 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [480221607] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 16:01:08,981 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 16:01:08,981 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-06 16:01:08,983 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1575967514] [2022-12-06 16:01:08,983 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 16:01:08,990 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-06 16:01:08,990 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 16:01:09,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-06 16:01:09,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-06 16:01:09,022 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 82 [2022-12-06 16:01:09,026 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 69 transitions, 150 flow. Second operand has 4 states, 4 states have (on average 69.5) internal successors, (278), 4 states have internal predecessors, (278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:01:09,029 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 16:01:09,029 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 82 [2022-12-06 16:01:09,030 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 16:01:09,091 INFO L130 PetriNetUnfolder]: 1/67 cut-off events. [2022-12-06 16:01:09,092 INFO L131 PetriNetUnfolder]: For 8/8 co-relation queries the response was YES. [2022-12-06 16:01:09,092 INFO L83 FinitePrefix]: Finished finitePrefix Result has 88 conditions, 67 events. 1/67 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 13 event pairs, 0 based on Foata normal form. 1/67 useless extension candidates. Maximal degree in co-relation 40. Up to 7 conditions per place. [2022-12-06 16:01:09,093 INFO L137 encePairwiseOnDemand]: 77/82 looper letters, 8 selfloop transitions, 3 changer transitions 0/67 dead transitions. [2022-12-06 16:01:09,093 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 67 transitions, 168 flow [2022-12-06 16:01:09,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-06 16:01:09,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-06 16:01:09,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 348 transitions. [2022-12-06 16:01:09,111 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.848780487804878 [2022-12-06 16:01:09,114 INFO L294 CegarLoopForPetriNet]: 73 programPoint places, 4 predicate places. [2022-12-06 16:01:09,114 INFO L495 AbstractCegarLoop]: Abstraction has has 77 places, 67 transitions, 168 flow [2022-12-06 16:01:09,114 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 69.5) internal successors, (278), 4 states have internal predecessors, (278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:01:09,114 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:01:09,115 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 16:01:09,115 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-06 16:01:09,115 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 16:01:09,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:01:09,116 INFO L85 PathProgramCache]: Analyzing trace with hash 821493880, now seen corresponding path program 1 times [2022-12-06 16:01:09,116 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:01:09,116 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [876766714] [2022-12-06 16:01:09,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:01:09,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:01:09,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:01:09,787 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 16:01:09,787 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 16:01:09,788 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [876766714] [2022-12-06 16:01:09,788 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [876766714] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 16:01:09,788 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 16:01:09,788 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-12-06 16:01:09,788 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1333288793] [2022-12-06 16:01:09,788 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 16:01:09,789 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-06 16:01:09,789 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 16:01:09,790 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-06 16:01:09,790 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2022-12-06 16:01:09,791 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 40 out of 82 [2022-12-06 16:01:09,791 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 67 transitions, 168 flow. Second operand has 11 states, 11 states have (on average 43.0) internal successors, (473), 11 states have internal predecessors, (473), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:01:09,792 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 16:01:09,792 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 40 of 82 [2022-12-06 16:01:09,792 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 16:01:10,054 INFO L130 PetriNetUnfolder]: 16/112 cut-off events. [2022-12-06 16:01:10,054 INFO L131 PetriNetUnfolder]: For 18/19 co-relation queries the response was YES. [2022-12-06 16:01:10,055 INFO L83 FinitePrefix]: Finished finitePrefix Result has 208 conditions, 112 events. 16/112 cut-off events. For 18/19 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 157 event pairs, 1 based on Foata normal form. 0/110 useless extension candidates. Maximal degree in co-relation 126. Up to 20 conditions per place. [2022-12-06 16:01:10,057 INFO L137 encePairwiseOnDemand]: 72/82 looper letters, 36 selfloop transitions, 10 changer transitions 0/78 dead transitions. [2022-12-06 16:01:10,057 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 78 transitions, 282 flow [2022-12-06 16:01:10,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-06 16:01:10,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-12-06 16:01:10,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 447 transitions. [2022-12-06 16:01:10,061 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.5451219512195122 [2022-12-06 16:01:10,062 INFO L294 CegarLoopForPetriNet]: 73 programPoint places, 13 predicate places. [2022-12-06 16:01:10,063 INFO L495 AbstractCegarLoop]: Abstraction has has 86 places, 78 transitions, 282 flow [2022-12-06 16:01:10,063 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 43.0) internal successors, (473), 11 states have internal predecessors, (473), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:01:10,065 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:01:10,065 INFO L213 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 16:01:10,070 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-06 16:01:10,070 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 16:01:10,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:01:10,070 INFO L85 PathProgramCache]: Analyzing trace with hash -807825616, now seen corresponding path program 1 times [2022-12-06 16:01:10,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:01:10,071 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [420509694] [2022-12-06 16:01:10,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:01:10,071 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:01:10,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:01:10,632 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 16:01:10,632 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 16:01:10,633 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [420509694] [2022-12-06 16:01:10,633 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [420509694] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-06 16:01:10,634 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [966695064] [2022-12-06 16:01:10,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:01:10,634 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-06 16:01:10,634 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 16:01:10,648 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) [2022-12-06 16:01:10,649 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-06 16:01:10,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:01:10,731 INFO L263 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 43 conjunts are in the unsatisfiable core [2022-12-06 16:01:10,736 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-06 16:01:10,827 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-06 16:01:10,828 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-12-06 16:01:10,878 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-12-06 16:01:10,878 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2022-12-06 16:01:10,941 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-12-06 16:01:11,100 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-12-06 16:01:11,324 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-06 16:01:11,333 INFO L321 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2022-12-06 16:01:11,333 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 25 treesize of output 20 [2022-12-06 16:01:11,449 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-06 16:01:11,453 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-12-06 16:01:11,454 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 30 [2022-12-06 16:01:11,514 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-12-06 16:01:11,515 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 10 [2022-12-06 16:01:11,571 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 16:01:11,571 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-06 16:01:12,520 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 16:01:12,521 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [966695064] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-06 16:01:12,521 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-06 16:01:12,521 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 19, 17] total 43 [2022-12-06 16:01:12,521 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1454068296] [2022-12-06 16:01:12,521 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-06 16:01:12,522 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 43 states [2022-12-06 16:01:12,522 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 16:01:12,522 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2022-12-06 16:01:12,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=153, Invalid=1653, Unknown=0, NotChecked=0, Total=1806 [2022-12-06 16:01:12,525 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 28 out of 82 [2022-12-06 16:01:12,527 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 86 places, 78 transitions, 282 flow. Second operand has 43 states, 43 states have (on average 30.88372093023256) internal successors, (1328), 43 states have internal predecessors, (1328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:01:12,527 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 16:01:12,527 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 28 of 82 [2022-12-06 16:01:12,527 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 16:01:14,445 INFO L130 PetriNetUnfolder]: 36/193 cut-off events. [2022-12-06 16:01:14,446 INFO L131 PetriNetUnfolder]: For 72/72 co-relation queries the response was YES. [2022-12-06 16:01:14,446 INFO L83 FinitePrefix]: Finished finitePrefix Result has 494 conditions, 193 events. 36/193 cut-off events. For 72/72 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 504 event pairs, 2 based on Foata normal form. 2/189 useless extension candidates. Maximal degree in co-relation 376. Up to 69 conditions per place. [2022-12-06 16:01:14,447 INFO L137 encePairwiseOnDemand]: 64/82 looper letters, 56 selfloop transitions, 19 changer transitions 14/112 dead transitions. [2022-12-06 16:01:14,447 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 110 places, 112 transitions, 594 flow [2022-12-06 16:01:14,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-12-06 16:01:14,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2022-12-06 16:01:14,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 790 transitions. [2022-12-06 16:01:14,449 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.3853658536585366 [2022-12-06 16:01:14,449 INFO L294 CegarLoopForPetriNet]: 73 programPoint places, 37 predicate places. [2022-12-06 16:01:14,449 INFO L495 AbstractCegarLoop]: Abstraction has has 110 places, 112 transitions, 594 flow [2022-12-06 16:01:14,450 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 43 states, 43 states have (on average 30.88372093023256) internal successors, (1328), 43 states have internal predecessors, (1328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:01:14,450 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:01:14,450 INFO L213 CegarLoopForPetriNet]: trace histogram [5, 5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 16:01:14,467 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-06 16:01:14,656 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-06 16:01:14,656 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 16:01:14,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:01:14,657 INFO L85 PathProgramCache]: Analyzing trace with hash 1413012714, now seen corresponding path program 2 times [2022-12-06 16:01:14,657 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:01:14,657 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1242362167] [2022-12-06 16:01:14,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:01:14,657 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:01:14,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:01:15,240 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 16:01:15,240 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 16:01:15,240 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1242362167] [2022-12-06 16:01:15,240 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1242362167] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-06 16:01:15,241 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1948209281] [2022-12-06 16:01:15,241 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-06 16:01:15,241 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-06 16:01:15,241 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 16:01:15,242 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) [2022-12-06 16:01:15,271 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-06 16:01:15,351 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-06 16:01:15,351 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-06 16:01:15,353 INFO L263 TraceCheckSpWp]: Trace formula consists of 236 conjuncts, 39 conjunts are in the unsatisfiable core [2022-12-06 16:01:15,361 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-06 16:01:15,409 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-06 16:01:15,409 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-12-06 16:01:15,448 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-06 16:01:15,448 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-12-06 16:01:15,493 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-12-06 16:01:15,542 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-12-06 16:01:15,542 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2022-12-06 16:01:15,622 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-12-06 16:01:15,729 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-12-06 16:01:15,811 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-12-06 16:01:15,894 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-12-06 16:01:15,985 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-12-06 16:01:16,083 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-12-06 16:01:16,102 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 16:01:16,102 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-06 16:01:16,342 WARN L837 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_105 (Array Int Int))) (< 0 (select (select (store |c_#memory_int| |c_thread2Thread1of1ForFork0_#Ultimate.C_strcpy_dest#1.base| v_ArrVal_105) |c_thread2Thread1of1ForFork0_#Ultimate.C_strcpy_src#1.base|) (+ |c_thread2Thread1of1ForFork0_#Ultimate.C_strcpy_#t~offset13#1| |c_thread2Thread1of1ForFork0_#Ultimate.C_strcpy_src#1.offset| 4)))) is different from false [2022-12-06 16:01:17,020 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 242 treesize of output 230 [2022-12-06 16:01:17,028 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 113 treesize of output 105 [2022-12-06 16:01:17,034 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 218 treesize of output 202 [2022-12-06 16:01:17,043 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 202 treesize of output 198 [2022-12-06 16:01:24,910 WARN L233 SmtUtils]: Spent 7.44s on a formula simplification that was a NOOP. DAG size: 58 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-06 16:01:25,054 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 15 not checked. [2022-12-06 16:01:25,054 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1948209281] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-06 16:01:25,054 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-06 16:01:25,054 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 18, 18] total 48 [2022-12-06 16:01:25,054 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1343732853] [2022-12-06 16:01:25,054 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-06 16:01:25,055 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2022-12-06 16:01:25,055 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 16:01:25,055 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2022-12-06 16:01:25,056 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=185, Invalid=1945, Unknown=36, NotChecked=90, Total=2256 [2022-12-06 16:01:25,057 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 33 out of 82 [2022-12-06 16:01:25,058 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 110 places, 112 transitions, 594 flow. Second operand has 48 states, 48 states have (on average 35.958333333333336) internal successors, (1726), 48 states have internal predecessors, (1726), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:01:25,059 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 16:01:25,059 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 33 of 82 [2022-12-06 16:01:25,059 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 16:01:27,763 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2022-12-06 16:01:30,576 INFO L130 PetriNetUnfolder]: 39/205 cut-off events. [2022-12-06 16:01:30,576 INFO L131 PetriNetUnfolder]: For 122/122 co-relation queries the response was YES. [2022-12-06 16:01:30,576 INFO L83 FinitePrefix]: Finished finitePrefix Result has 679 conditions, 205 events. 39/205 cut-off events. For 122/122 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 530 event pairs, 2 based on Foata normal form. 0/199 useless extension candidates. Maximal degree in co-relation 528. Up to 78 conditions per place. [2022-12-06 16:01:30,577 INFO L137 encePairwiseOnDemand]: 67/82 looper letters, 60 selfloop transitions, 22 changer transitions 14/122 dead transitions. [2022-12-06 16:01:30,577 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 129 places, 122 transitions, 834 flow [2022-12-06 16:01:30,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-12-06 16:01:30,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-12-06 16:01:30,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 746 transitions. [2022-12-06 16:01:30,581 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.4548780487804878 [2022-12-06 16:01:30,581 INFO L294 CegarLoopForPetriNet]: 73 programPoint places, 56 predicate places. [2022-12-06 16:01:30,581 INFO L495 AbstractCegarLoop]: Abstraction has has 129 places, 122 transitions, 834 flow [2022-12-06 16:01:30,582 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 48 states have (on average 35.958333333333336) internal successors, (1726), 48 states have internal predecessors, (1726), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:01:30,582 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:01:30,582 INFO L213 CegarLoopForPetriNet]: trace histogram [6, 6, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 16:01:30,597 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-06 16:01:30,787 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2022-12-06 16:01:30,788 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 16:01:30,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:01:30,789 INFO L85 PathProgramCache]: Analyzing trace with hash 1548081298, now seen corresponding path program 3 times [2022-12-06 16:01:30,789 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:01:30,789 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [646415070] [2022-12-06 16:01:30,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:01:30,789 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:01:30,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:01:31,421 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 16:01:31,421 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 16:01:31,421 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [646415070] [2022-12-06 16:01:31,421 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [646415070] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-06 16:01:31,421 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1618221723] [2022-12-06 16:01:31,422 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-06 16:01:31,422 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-06 16:01:31,422 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 16:01:31,432 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) [2022-12-06 16:01:31,465 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-06 16:01:31,548 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2022-12-06 16:01:31,548 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-06 16:01:31,550 INFO L263 TraceCheckSpWp]: Trace formula consists of 245 conjuncts, 59 conjunts are in the unsatisfiable core [2022-12-06 16:01:31,558 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-06 16:01:31,703 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-12-06 16:01:31,704 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 33 [2022-12-06 16:01:31,749 INFO L321 Elim1Store]: treesize reduction 8, result has 52.9 percent of original size [2022-12-06 16:01:31,750 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 16 treesize of output 18 [2022-12-06 16:01:31,798 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-12-06 16:01:31,937 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-12-06 16:01:32,103 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-06 16:01:32,110 INFO L321 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2022-12-06 16:01:32,110 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 25 treesize of output 20 [2022-12-06 16:01:32,231 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-06 16:01:32,232 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-06 16:01:32,232 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-06 16:01:32,234 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-12-06 16:01:32,234 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 30 [2022-12-06 16:01:32,318 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-06 16:01:32,320 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-06 16:01:32,320 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-06 16:01:32,322 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-12-06 16:01:32,322 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 30 [2022-12-06 16:01:32,418 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-06 16:01:32,419 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-06 16:01:32,419 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-06 16:01:32,421 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-12-06 16:01:32,421 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 30 [2022-12-06 16:01:32,512 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-06 16:01:32,514 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-06 16:01:32,515 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-06 16:01:32,517 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-12-06 16:01:32,518 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 30 [2022-12-06 16:01:32,615 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-06 16:01:32,618 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-12-06 16:01:32,618 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 30 [2022-12-06 16:01:32,678 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-12-06 16:01:32,679 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 10 [2022-12-06 16:01:32,739 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 18 proven. 37 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 16:01:32,739 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-06 16:01:55,168 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 16:01:55,169 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 382 treesize of output 372 [2022-12-06 16:01:55,175 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-06 16:01:55,177 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 294 treesize of output 278 [2022-12-06 16:01:55,182 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-06 16:01:55,184 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 246 treesize of output 238 [2022-12-06 16:01:55,433 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-06 16:01:55,517 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 8 proven. 15 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-12-06 16:01:55,517 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1618221723] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-06 16:01:55,517 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-06 16:01:55,518 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 25, 20] total 58 [2022-12-06 16:01:55,518 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1391911131] [2022-12-06 16:01:55,518 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-06 16:01:55,518 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 58 states [2022-12-06 16:01:55,518 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 16:01:55,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 58 interpolants. [2022-12-06 16:01:55,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=255, Invalid=3043, Unknown=8, NotChecked=0, Total=3306 [2022-12-06 16:01:55,520 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 82 [2022-12-06 16:01:55,521 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 129 places, 122 transitions, 834 flow. Second operand has 58 states, 58 states have (on average 29.913793103448278) internal successors, (1735), 58 states have internal predecessors, (1735), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:01:55,521 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 16:01:55,522 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 82 [2022-12-06 16:01:55,522 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 16:01:58,160 INFO L130 PetriNetUnfolder]: 43/215 cut-off events. [2022-12-06 16:01:58,160 INFO L131 PetriNetUnfolder]: For 189/189 co-relation queries the response was YES. [2022-12-06 16:01:58,161 INFO L83 FinitePrefix]: Finished finitePrefix Result has 894 conditions, 215 events. 43/215 cut-off events. For 189/189 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 566 event pairs, 2 based on Foata normal form. 1/210 useless extension candidates. Maximal degree in co-relation 710. Up to 90 conditions per place. [2022-12-06 16:01:58,161 INFO L137 encePairwiseOnDemand]: 62/82 looper letters, 0 selfloop transitions, 0 changer transitions 126/126 dead transitions. [2022-12-06 16:01:58,161 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 158 places, 126 transitions, 1086 flow [2022-12-06 16:01:58,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-12-06 16:01:58,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2022-12-06 16:01:58,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 962 transitions. [2022-12-06 16:01:58,164 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.3666158536585366 [2022-12-06 16:01:58,164 INFO L294 CegarLoopForPetriNet]: 73 programPoint places, 85 predicate places. [2022-12-06 16:01:58,164 INFO L495 AbstractCegarLoop]: Abstraction has has 158 places, 126 transitions, 1086 flow [2022-12-06 16:01:58,165 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 58 states, 58 states have (on average 29.913793103448278) internal successors, (1735), 58 states have internal predecessors, (1735), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:01:58,166 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2022-12-06 16:01:58,167 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 3 remaining) [2022-12-06 16:01:58,167 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 3 remaining) [2022-12-06 16:01:58,172 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-12-06 16:01:58,368 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-06 16:01:58,368 INFO L458 BasicCegarLoop]: Path program histogram: [3, 1, 1] [2022-12-06 16:01:58,371 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-06 16:01:58,371 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-06 16:01:58,373 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.12 04:01:58 BasicIcfg [2022-12-06 16:01:58,373 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-06 16:01:58,373 INFO L158 Benchmark]: Toolchain (without parser) took 50898.08ms. Allocated memory was 160.4MB in the beginning and 367.0MB in the end (delta: 206.6MB). Free memory was 132.8MB in the beginning and 153.4MB in the end (delta: -20.6MB). Peak memory consumption was 186.5MB. Max. memory is 8.0GB. [2022-12-06 16:01:58,374 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 160.4MB. Free memory was 136.1MB in the beginning and 136.0MB in the end (delta: 86.0kB). There was no memory consumed. Max. memory is 8.0GB. [2022-12-06 16:01:58,374 INFO L158 Benchmark]: CACSL2BoogieTranslator took 539.95ms. Allocated memory is still 160.4MB. Free memory was 132.8MB in the beginning and 100.5MB in the end (delta: 32.3MB). Peak memory consumption was 32.5MB. Max. memory is 8.0GB. [2022-12-06 16:01:58,374 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.45ms. Allocated memory is still 160.4MB. Free memory was 100.5MB in the beginning and 98.2MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-06 16:01:58,374 INFO L158 Benchmark]: Boogie Preprocessor took 27.43ms. Allocated memory is still 160.4MB. Free memory was 98.2MB in the beginning and 96.3MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-06 16:01:58,374 INFO L158 Benchmark]: RCFGBuilder took 330.86ms. Allocated memory is still 160.4MB. Free memory was 96.3MB in the beginning and 82.5MB in the end (delta: 13.8MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. [2022-12-06 16:01:58,374 INFO L158 Benchmark]: TraceAbstraction took 49949.60ms. Allocated memory was 160.4MB in the beginning and 367.0MB in the end (delta: 206.6MB). Free memory was 81.7MB in the beginning and 153.4MB in the end (delta: -71.7MB). Peak memory consumption was 135.2MB. Max. memory is 8.0GB. [2022-12-06 16:01:58,375 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 160.4MB. Free memory was 136.1MB in the beginning and 136.0MB in the end (delta: 86.0kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 539.95ms. Allocated memory is still 160.4MB. Free memory was 132.8MB in the beginning and 100.5MB in the end (delta: 32.3MB). Peak memory consumption was 32.5MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 37.45ms. Allocated memory is still 160.4MB. Free memory was 100.5MB in the beginning and 98.2MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 27.43ms. Allocated memory is still 160.4MB. Free memory was 98.2MB in the beginning and 96.3MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 330.86ms. Allocated memory is still 160.4MB. Free memory was 96.3MB in the beginning and 82.5MB in the end (delta: 13.8MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. * TraceAbstraction took 49949.60ms. Allocated memory was 160.4MB in the beginning and 367.0MB in the end (delta: 206.6MB). Free memory was 81.7MB in the beginning and 153.4MB in the end (delta: -71.7MB). Peak memory consumption was 135.2MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 1107]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 104 locations, 3 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 49.8s, OverallIterations: 5, TraceHistogramMax: 6, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 10.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 21 mSolverCounterUnknown, 2021 SdHoareTripleChecker+Valid, 4.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2021 mSDsluCounter, 1042 SdHoareTripleChecker+Invalid, 3.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 70 IncrementalHoareTripleChecker+Unchecked, 965 mSDsCounter, 363 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3955 IncrementalHoareTripleChecker+Invalid, 4409 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 363 mSolverCounterUnsat, 77 mSDtfsCounter, 3955 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 618 GetRequests, 379 SyntacticMatches, 16 SemanticMatches, 223 ConstructedPredicates, 1 IntricatePredicates, 1 DeprecatedPredicates, 3616 ImplicationChecksByTransitivity, 38.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1086occurred in iteration=5, InterpolantAutomatonStates: 92, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 37.9s InterpolantComputationTime, 590 NumberOfCodeBlocks, 590 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 814 ConstructedInterpolants, 139 QuantifiedInterpolants, 11806 SizeOfPredicates, 45 NumberOfNonLiveVariables, 690 ConjunctsInSsa, 141 ConjunctsInUnsatCore, 11 InterpolantComputations, 2 PerfectInterpolantSequences, 58/282 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-12-06 16:01:58,428 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...