./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/weaver/popl20-more-array-sum-alt2.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 791161d1 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/weaver/popl20-more-array-sum-alt2.wvr.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4018a1168c08743b2a9b9283b6137e1dcc53bdf8ab8362348f4bbe02762305c3 --- Real Ultimate output --- This is Ultimate 0.2.2-?-791161d [2022-07-22 21:49:06,912 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-22 21:49:06,914 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-22 21:49:06,950 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-22 21:49:06,952 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-22 21:49:06,953 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-22 21:49:06,958 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-22 21:49:06,963 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-22 21:49:06,965 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-22 21:49:06,970 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-22 21:49:06,971 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-22 21:49:06,971 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-22 21:49:06,972 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-22 21:49:06,972 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-22 21:49:06,973 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-22 21:49:06,974 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-22 21:49:06,974 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-22 21:49:06,975 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-22 21:49:06,976 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-22 21:49:06,977 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-22 21:49:06,978 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-22 21:49:06,979 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-22 21:49:06,979 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-22 21:49:06,980 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-22 21:49:06,980 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-22 21:49:06,982 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-22 21:49:06,982 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-22 21:49:06,983 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-22 21:49:06,983 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-22 21:49:06,984 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-22 21:49:06,984 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-22 21:49:06,984 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-22 21:49:06,985 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-22 21:49:06,985 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-22 21:49:06,986 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-22 21:49:06,987 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-22 21:49:06,987 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-22 21:49:06,987 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-22 21:49:06,988 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-22 21:49:06,988 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-22 21:49:06,988 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-22 21:49:06,989 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-22 21:49:06,990 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-22 21:49:07,020 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-22 21:49:07,021 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-22 21:49:07,022 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-22 21:49:07,022 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-22 21:49:07,023 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-22 21:49:07,023 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-22 21:49:07,024 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-22 21:49:07,024 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-22 21:49:07,024 INFO L138 SettingsManager]: * Use SBE=true [2022-07-22 21:49:07,025 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-22 21:49:07,025 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-22 21:49:07,025 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-22 21:49:07,025 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-22 21:49:07,025 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-22 21:49:07,025 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-22 21:49:07,026 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-22 21:49:07,026 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-22 21:49:07,026 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-22 21:49:07,026 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-22 21:49:07,026 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-22 21:49:07,026 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-22 21:49:07,026 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-22 21:49:07,027 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-22 21:49:07,027 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-22 21:49:07,027 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-22 21:49:07,027 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-22 21:49:07,027 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-22 21:49:07,027 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-22 21:49:07,028 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-22 21:49:07,028 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-22 21:49:07,028 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-22 21:49:07,028 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-22 21:49:07,029 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-22 21:49:07,029 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4018a1168c08743b2a9b9283b6137e1dcc53bdf8ab8362348f4bbe02762305c3 [2022-07-22 21:49:07,214 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-22 21:49:07,239 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-22 21:49:07,241 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-22 21:49:07,242 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-22 21:49:07,243 INFO L275 PluginConnector]: CDTParser initialized [2022-07-22 21:49:07,244 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/popl20-more-array-sum-alt2.wvr.c [2022-07-22 21:49:07,286 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e63a71f76/4e76c18adcc84b528e2645d538631346/FLAG6b5a6c5e2 [2022-07-22 21:49:07,679 INFO L306 CDTParser]: Found 1 translation units. [2022-07-22 21:49:07,683 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/popl20-more-array-sum-alt2.wvr.c [2022-07-22 21:49:07,693 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e63a71f76/4e76c18adcc84b528e2645d538631346/FLAG6b5a6c5e2 [2022-07-22 21:49:07,708 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e63a71f76/4e76c18adcc84b528e2645d538631346 [2022-07-22 21:49:07,710 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-22 21:49:07,712 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-22 21:49:07,714 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-22 21:49:07,714 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-22 21:49:07,716 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-22 21:49:07,717 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 09:49:07" (1/1) ... [2022-07-22 21:49:07,717 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@41aa031 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 09:49:07, skipping insertion in model container [2022-07-22 21:49:07,718 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 09:49:07" (1/1) ... [2022-07-22 21:49:07,722 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-22 21:49:07,741 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-22 21:49:07,867 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/popl20-more-array-sum-alt2.wvr.c[2525,2538] [2022-07-22 21:49:07,872 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 21:49:07,879 INFO L203 MainTranslator]: Completed pre-run [2022-07-22 21:49:07,899 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/popl20-more-array-sum-alt2.wvr.c[2525,2538] [2022-07-22 21:49:07,902 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 21:49:07,911 INFO L208 MainTranslator]: Completed translation [2022-07-22 21:49:07,911 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 09:49:07 WrapperNode [2022-07-22 21:49:07,911 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-22 21:49:07,912 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-22 21:49:07,913 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-22 21:49:07,913 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-22 21:49:07,917 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 09:49:07" (1/1) ... [2022-07-22 21:49:07,923 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 09:49:07" (1/1) ... [2022-07-22 21:49:07,938 INFO L137 Inliner]: procedures = 25, calls = 45, calls flagged for inlining = 12, calls inlined = 16, statements flattened = 191 [2022-07-22 21:49:07,939 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-22 21:49:07,939 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-22 21:49:07,939 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-22 21:49:07,939 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-22 21:49:07,945 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 09:49:07" (1/1) ... [2022-07-22 21:49:07,945 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 09:49:07" (1/1) ... [2022-07-22 21:49:07,952 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 09:49:07" (1/1) ... [2022-07-22 21:49:07,953 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 09:49:07" (1/1) ... [2022-07-22 21:49:07,962 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 09:49:07" (1/1) ... [2022-07-22 21:49:07,974 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 09:49:07" (1/1) ... [2022-07-22 21:49:07,975 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 09:49:07" (1/1) ... [2022-07-22 21:49:07,982 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-22 21:49:07,982 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-22 21:49:07,982 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-22 21:49:07,982 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-22 21:49:07,983 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 09:49:07" (1/1) ... [2022-07-22 21:49:07,992 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-22 21:49:08,001 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 21:49:08,011 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) [2022-07-22 21:49:08,029 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 [2022-07-22 21:49:08,047 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-22 21:49:08,047 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-22 21:49:08,047 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-22 21:49:08,047 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-22 21:49:08,048 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-07-22 21:49:08,048 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-07-22 21:49:08,048 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-07-22 21:49:08,048 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-07-22 21:49:08,048 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-07-22 21:49:08,048 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-07-22 21:49:08,048 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-22 21:49:08,048 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-07-22 21:49:08,049 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-07-22 21:49:08,049 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-22 21:49:08,049 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-22 21:49:08,049 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-22 21:49:08,049 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-22 21:49:08,050 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-07-22 21:49:08,110 INFO L234 CfgBuilder]: Building ICFG [2022-07-22 21:49:08,112 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-22 21:49:08,337 INFO L275 CfgBuilder]: Performing block encoding [2022-07-22 21:49:08,470 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-22 21:49:08,470 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2022-07-22 21:49:08,472 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 09:49:08 BoogieIcfgContainer [2022-07-22 21:49:08,472 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-22 21:49:08,473 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-22 21:49:08,473 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-22 21:49:08,476 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-22 21:49:08,476 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.07 09:49:07" (1/3) ... [2022-07-22 21:49:08,477 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40fad81e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.07 09:49:08, skipping insertion in model container [2022-07-22 21:49:08,477 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 09:49:07" (2/3) ... [2022-07-22 21:49:08,477 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40fad81e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.07 09:49:08, skipping insertion in model container [2022-07-22 21:49:08,477 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 09:49:08" (3/3) ... [2022-07-22 21:49:08,478 INFO L111 eAbstractionObserver]: Analyzing ICFG popl20-more-array-sum-alt2.wvr.c [2022-07-22 21:49:08,483 WARN L143 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-07-22 21:49:08,490 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-22 21:49:08,491 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-22 21:49:08,491 INFO L509 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-07-22 21:49:08,566 INFO L135 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-07-22 21:49:08,608 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 151 places, 153 transitions, 330 flow [2022-07-22 21:49:08,673 INFO L129 PetriNetUnfolder]: 12/150 cut-off events. [2022-07-22 21:49:08,675 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-07-22 21:49:08,679 INFO L84 FinitePrefix]: Finished finitePrefix Result has 163 conditions, 150 events. 12/150 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 90 event pairs, 0 based on Foata normal form. 0/137 useless extension candidates. Maximal degree in co-relation 112. Up to 2 conditions per place. [2022-07-22 21:49:08,679 INFO L82 GeneralOperation]: Start removeDead. Operand has 151 places, 153 transitions, 330 flow [2022-07-22 21:49:08,695 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 137 places, 139 transitions, 296 flow [2022-07-22 21:49:08,702 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-22 21:49:08,709 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=true, 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=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@55ead76d, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@6effe872 [2022-07-22 21:49:08,709 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-07-22 21:49:08,742 INFO L129 PetriNetUnfolder]: 12/138 cut-off events. [2022-07-22 21:49:08,744 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-07-22 21:49:08,744 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-22 21:49:08,745 INFO L200 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 21:49:08,746 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-07-22 21:49:08,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 21:49:08,750 INFO L85 PathProgramCache]: Analyzing trace with hash -2122018847, now seen corresponding path program 1 times [2022-07-22 21:49:08,756 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 21:49:08,756 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1018951591] [2022-07-22 21:49:08,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 21:49:08,757 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 21:49:08,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 21:49:08,961 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 21:49:08,961 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 21:49:08,962 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1018951591] [2022-07-22 21:49:08,962 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1018951591] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 21:49:08,962 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 21:49:08,962 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-22 21:49:08,963 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1894525823] [2022-07-22 21:49:08,964 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 21:49:08,969 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-22 21:49:08,970 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 21:49:08,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-22 21:49:08,994 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-22 21:49:08,996 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 135 out of 153 [2022-07-22 21:49:09,004 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 137 places, 139 transitions, 296 flow. Second operand has 2 states, 2 states have (on average 139.0) internal successors, (278), 2 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) [2022-07-22 21:49:09,004 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-22 21:49:09,004 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 135 of 153 [2022-07-22 21:49:09,005 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-22 21:49:09,105 INFO L129 PetriNetUnfolder]: 41/264 cut-off events. [2022-07-22 21:49:09,105 INFO L130 PetriNetUnfolder]: For 49/50 co-relation queries the response was YES. [2022-07-22 21:49:09,109 INFO L84 FinitePrefix]: Finished finitePrefix Result has 355 conditions, 264 events. 41/264 cut-off events. For 49/50 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 683 event pairs, 15 based on Foata normal form. 42/275 useless extension candidates. Maximal degree in co-relation 216. Up to 59 conditions per place. [2022-07-22 21:49:09,111 INFO L132 encePairwiseOnDemand]: 145/153 looper letters, 9 selfloop transitions, 0 changer transitions 4/131 dead transitions. [2022-07-22 21:49:09,111 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 138 places, 131 transitions, 298 flow [2022-07-22 21:49:09,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-22 21:49:09,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-07-22 21:49:09,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 287 transitions. [2022-07-22 21:49:09,124 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.9379084967320261 [2022-07-22 21:49:09,124 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 287 transitions. [2022-07-22 21:49:09,125 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 287 transitions. [2022-07-22 21:49:09,127 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-22 21:49:09,128 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 287 transitions. [2022-07-22 21:49:09,132 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 143.5) internal successors, (287), 2 states have internal predecessors, (287), 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) [2022-07-22 21:49:09,137 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 153.0) internal successors, (459), 3 states have internal predecessors, (459), 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) [2022-07-22 21:49:09,138 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 153.0) internal successors, (459), 3 states have internal predecessors, (459), 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) [2022-07-22 21:49:09,139 INFO L186 Difference]: Start difference. First operand has 137 places, 139 transitions, 296 flow. Second operand 2 states and 287 transitions. [2022-07-22 21:49:09,140 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 138 places, 131 transitions, 298 flow [2022-07-22 21:49:09,143 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 132 places, 131 transitions, 286 flow, removed 0 selfloop flow, removed 6 redundant places. [2022-07-22 21:49:09,145 INFO L242 Difference]: Finished difference. Result has 132 places, 127 transitions, 260 flow [2022-07-22 21:49:09,146 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=153, PETRI_DIFFERENCE_MINUEND_FLOW=268, PETRI_DIFFERENCE_MINUEND_PLACES=131, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=131, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=131, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=260, PETRI_PLACES=132, PETRI_TRANSITIONS=127} [2022-07-22 21:49:09,149 INFO L279 CegarLoopForPetriNet]: 137 programPoint places, -5 predicate places. [2022-07-22 21:49:09,149 INFO L495 AbstractCegarLoop]: Abstraction has has 132 places, 127 transitions, 260 flow [2022-07-22 21:49:09,149 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 139.0) internal successors, (278), 2 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) [2022-07-22 21:49:09,149 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-22 21:49:09,150 INFO L200 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 21:49:09,150 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-22 21:49:09,151 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-07-22 21:49:09,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 21:49:09,152 INFO L85 PathProgramCache]: Analyzing trace with hash 197243035, now seen corresponding path program 1 times [2022-07-22 21:49:09,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 21:49:09,152 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [502293504] [2022-07-22 21:49:09,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 21:49:09,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 21:49:09,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 21:49:09,386 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 21:49:09,387 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 21:49:09,388 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [502293504] [2022-07-22 21:49:09,388 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [502293504] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 21:49:09,389 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 21:49:09,389 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-22 21:49:09,389 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [994806393] [2022-07-22 21:49:09,389 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 21:49:09,390 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-22 21:49:09,391 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 21:49:09,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-22 21:49:09,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-22 21:49:09,393 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 153 [2022-07-22 21:49:09,396 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 132 places, 127 transitions, 260 flow. Second operand has 6 states, 6 states have (on average 117.0) internal successors, (702), 6 states have internal predecessors, (702), 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) [2022-07-22 21:49:09,396 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-22 21:49:09,396 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 153 [2022-07-22 21:49:09,396 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-22 21:49:09,539 INFO L129 PetriNetUnfolder]: 54/344 cut-off events. [2022-07-22 21:49:09,540 INFO L130 PetriNetUnfolder]: For 21/22 co-relation queries the response was YES. [2022-07-22 21:49:09,541 INFO L84 FinitePrefix]: Finished finitePrefix Result has 462 conditions, 344 events. 54/344 cut-off events. For 21/22 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 1166 event pairs, 6 based on Foata normal form. 2/311 useless extension candidates. Maximal degree in co-relation 459. Up to 52 conditions per place. [2022-07-22 21:49:09,542 INFO L132 encePairwiseOnDemand]: 145/153 looper letters, 39 selfloop transitions, 6 changer transitions 4/149 dead transitions. [2022-07-22 21:49:09,542 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 133 places, 149 transitions, 411 flow [2022-07-22 21:49:09,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-22 21:49:09,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-07-22 21:49:09,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 728 transitions. [2022-07-22 21:49:09,545 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.7930283224400871 [2022-07-22 21:49:09,545 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 728 transitions. [2022-07-22 21:49:09,545 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 728 transitions. [2022-07-22 21:49:09,545 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-22 21:49:09,545 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 728 transitions. [2022-07-22 21:49:09,547 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 121.33333333333333) internal successors, (728), 6 states have internal predecessors, (728), 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) [2022-07-22 21:49:09,550 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 153.0) internal successors, (1071), 7 states have internal predecessors, (1071), 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) [2022-07-22 21:49:09,550 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 153.0) internal successors, (1071), 7 states have internal predecessors, (1071), 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) [2022-07-22 21:49:09,550 INFO L186 Difference]: Start difference. First operand has 132 places, 127 transitions, 260 flow. Second operand 6 states and 728 transitions. [2022-07-22 21:49:09,551 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 133 places, 149 transitions, 411 flow [2022-07-22 21:49:09,552 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 133 places, 149 transitions, 411 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-07-22 21:49:09,556 INFO L242 Difference]: Finished difference. Result has 136 places, 131 transitions, 296 flow [2022-07-22 21:49:09,556 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=153, PETRI_DIFFERENCE_MINUEND_FLOW=260, PETRI_DIFFERENCE_MINUEND_PLACES=128, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=127, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=122, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=296, PETRI_PLACES=136, PETRI_TRANSITIONS=131} [2022-07-22 21:49:09,557 INFO L279 CegarLoopForPetriNet]: 137 programPoint places, -1 predicate places. [2022-07-22 21:49:09,557 INFO L495 AbstractCegarLoop]: Abstraction has has 136 places, 131 transitions, 296 flow [2022-07-22 21:49:09,557 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 117.0) internal successors, (702), 6 states have internal predecessors, (702), 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) [2022-07-22 21:49:09,558 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-22 21:49:09,558 INFO L200 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 21:49:09,558 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-22 21:49:09,558 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-07-22 21:49:09,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 21:49:09,559 INFO L85 PathProgramCache]: Analyzing trace with hash 1026750083, now seen corresponding path program 1 times [2022-07-22 21:49:09,560 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 21:49:09,560 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [763639077] [2022-07-22 21:49:09,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 21:49:09,560 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 21:49:09,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 21:49:09,699 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 21:49:09,700 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 21:49:09,700 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [763639077] [2022-07-22 21:49:09,700 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [763639077] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 21:49:09,701 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 21:49:09,701 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-22 21:49:09,701 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [45655784] [2022-07-22 21:49:09,701 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 21:49:09,703 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-22 21:49:09,703 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 21:49:09,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-22 21:49:09,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-22 21:49:09,705 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 153 [2022-07-22 21:49:09,706 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 136 places, 131 transitions, 296 flow. Second operand has 7 states, 7 states have (on average 116.42857142857143) internal successors, (815), 7 states have internal predecessors, (815), 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) [2022-07-22 21:49:09,706 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-22 21:49:09,706 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 153 [2022-07-22 21:49:09,706 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-22 21:49:09,979 INFO L129 PetriNetUnfolder]: 378/1242 cut-off events. [2022-07-22 21:49:09,980 INFO L130 PetriNetUnfolder]: For 239/267 co-relation queries the response was YES. [2022-07-22 21:49:09,983 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2173 conditions, 1242 events. 378/1242 cut-off events. For 239/267 co-relation queries the response was YES. Maximal size of possible extension queue 71. Compared 7932 event pairs, 144 based on Foata normal form. 0/1052 useless extension candidates. Maximal degree in co-relation 2166. Up to 429 conditions per place. [2022-07-22 21:49:09,988 INFO L132 encePairwiseOnDemand]: 144/153 looper letters, 55 selfloop transitions, 8 changer transitions 0/159 dead transitions. [2022-07-22 21:49:09,989 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 141 places, 159 transitions, 506 flow [2022-07-22 21:49:09,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-22 21:49:09,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-07-22 21:49:09,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 960 transitions. [2022-07-22 21:49:09,991 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.7843137254901961 [2022-07-22 21:49:09,991 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 960 transitions. [2022-07-22 21:49:09,991 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 960 transitions. [2022-07-22 21:49:09,992 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-22 21:49:09,992 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 960 transitions. [2022-07-22 21:49:09,993 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 120.0) internal successors, (960), 8 states have internal predecessors, (960), 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) [2022-07-22 21:49:09,995 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 153.0) internal successors, (1377), 9 states have internal predecessors, (1377), 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) [2022-07-22 21:49:09,996 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 153.0) internal successors, (1377), 9 states have internal predecessors, (1377), 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) [2022-07-22 21:49:09,996 INFO L186 Difference]: Start difference. First operand has 136 places, 131 transitions, 296 flow. Second operand 8 states and 960 transitions. [2022-07-22 21:49:09,996 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 141 places, 159 transitions, 506 flow [2022-07-22 21:49:09,998 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 139 places, 159 transitions, 502 flow, removed 2 selfloop flow, removed 2 redundant places. [2022-07-22 21:49:09,999 INFO L242 Difference]: Finished difference. Result has 142 places, 134 transitions, 328 flow [2022-07-22 21:49:10,000 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=153, PETRI_DIFFERENCE_MINUEND_FLOW=292, PETRI_DIFFERENCE_MINUEND_PLACES=132, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=131, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=123, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=328, PETRI_PLACES=142, PETRI_TRANSITIONS=134} [2022-07-22 21:49:10,001 INFO L279 CegarLoopForPetriNet]: 137 programPoint places, 5 predicate places. [2022-07-22 21:49:10,001 INFO L495 AbstractCegarLoop]: Abstraction has has 142 places, 134 transitions, 328 flow [2022-07-22 21:49:10,001 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 116.42857142857143) internal successors, (815), 7 states have internal predecessors, (815), 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) [2022-07-22 21:49:10,001 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-22 21:49:10,002 INFO L200 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 21:49:10,002 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-22 21:49:10,002 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-07-22 21:49:10,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 21:49:10,003 INFO L85 PathProgramCache]: Analyzing trace with hash 1899340813, now seen corresponding path program 1 times [2022-07-22 21:49:10,003 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 21:49:10,003 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [288324108] [2022-07-22 21:49:10,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 21:49:10,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 21:49:10,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 21:49:10,222 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 21:49:10,222 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 21:49:10,223 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [288324108] [2022-07-22 21:49:10,223 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [288324108] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 21:49:10,223 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 21:49:10,223 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-07-22 21:49:10,223 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [486718128] [2022-07-22 21:49:10,223 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 21:49:10,224 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-22 21:49:10,224 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 21:49:10,224 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-22 21:49:10,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2022-07-22 21:49:10,226 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 91 out of 153 [2022-07-22 21:49:10,227 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 142 places, 134 transitions, 328 flow. Second operand has 10 states, 10 states have (on average 95.1) internal successors, (951), 10 states have internal predecessors, (951), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 21:49:10,227 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-22 21:49:10,227 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 91 of 153 [2022-07-22 21:49:10,227 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-22 21:49:10,745 INFO L129 PetriNetUnfolder]: 870/1937 cut-off events. [2022-07-22 21:49:10,745 INFO L130 PetriNetUnfolder]: For 377/401 co-relation queries the response was YES. [2022-07-22 21:49:10,748 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3794 conditions, 1937 events. 870/1937 cut-off events. For 377/401 co-relation queries the response was YES. Maximal size of possible extension queue 154. Compared 13114 event pairs, 583 based on Foata normal form. 24/1735 useless extension candidates. Maximal degree in co-relation 3785. Up to 1139 conditions per place. [2022-07-22 21:49:10,756 INFO L132 encePairwiseOnDemand]: 141/153 looper letters, 77 selfloop transitions, 11 changer transitions 0/167 dead transitions. [2022-07-22 21:49:10,756 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 152 places, 167 transitions, 590 flow [2022-07-22 21:49:10,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-22 21:49:10,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-07-22 21:49:10,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1084 transitions. [2022-07-22 21:49:10,759 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.6440879382055853 [2022-07-22 21:49:10,759 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1084 transitions. [2022-07-22 21:49:10,759 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1084 transitions. [2022-07-22 21:49:10,759 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-22 21:49:10,760 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1084 transitions. [2022-07-22 21:49:10,761 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 98.54545454545455) internal successors, (1084), 11 states have internal predecessors, (1084), 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) [2022-07-22 21:49:10,763 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 153.0) internal successors, (1836), 12 states have internal predecessors, (1836), 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) [2022-07-22 21:49:10,764 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 153.0) internal successors, (1836), 12 states have internal predecessors, (1836), 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) [2022-07-22 21:49:10,764 INFO L186 Difference]: Start difference. First operand has 142 places, 134 transitions, 328 flow. Second operand 11 states and 1084 transitions. [2022-07-22 21:49:10,764 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 152 places, 167 transitions, 590 flow [2022-07-22 21:49:10,766 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 148 places, 167 transitions, 580 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-07-22 21:49:10,768 INFO L242 Difference]: Finished difference. Result has 153 places, 138 transitions, 367 flow [2022-07-22 21:49:10,768 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=153, PETRI_DIFFERENCE_MINUEND_FLOW=318, PETRI_DIFFERENCE_MINUEND_PLACES=138, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=134, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=123, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=367, PETRI_PLACES=153, PETRI_TRANSITIONS=138} [2022-07-22 21:49:10,769 INFO L279 CegarLoopForPetriNet]: 137 programPoint places, 16 predicate places. [2022-07-22 21:49:10,769 INFO L495 AbstractCegarLoop]: Abstraction has has 153 places, 138 transitions, 367 flow [2022-07-22 21:49:10,770 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 95.1) internal successors, (951), 10 states have internal predecessors, (951), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 21:49:10,770 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-22 21:49:10,770 INFO L200 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 21:49:10,770 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-22 21:49:10,770 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-07-22 21:49:10,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 21:49:10,771 INFO L85 PathProgramCache]: Analyzing trace with hash 1250991997, now seen corresponding path program 1 times [2022-07-22 21:49:10,771 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 21:49:10,771 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1608241359] [2022-07-22 21:49:10,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 21:49:10,771 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 21:49:10,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 21:49:10,862 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 21:49:10,862 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 21:49:10,862 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1608241359] [2022-07-22 21:49:10,862 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1608241359] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 21:49:10,862 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 21:49:10,863 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-07-22 21:49:10,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [833756142] [2022-07-22 21:49:10,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 21:49:10,863 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-22 21:49:10,863 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 21:49:10,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-22 21:49:10,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-07-22 21:49:10,865 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 92 out of 153 [2022-07-22 21:49:10,866 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 153 places, 138 transitions, 367 flow. Second operand has 10 states, 10 states have (on average 96.0) internal successors, (960), 10 states have internal predecessors, (960), 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) [2022-07-22 21:49:10,866 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-22 21:49:10,866 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 92 of 153 [2022-07-22 21:49:10,866 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-22 21:49:11,194 INFO L129 PetriNetUnfolder]: 688/1427 cut-off events. [2022-07-22 21:49:11,194 INFO L130 PetriNetUnfolder]: For 443/461 co-relation queries the response was YES. [2022-07-22 21:49:11,197 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3030 conditions, 1427 events. 688/1427 cut-off events. For 443/461 co-relation queries the response was YES. Maximal size of possible extension queue 117. Compared 8414 event pairs, 362 based on Foata normal form. 18/1334 useless extension candidates. Maximal degree in co-relation 3016. Up to 826 conditions per place. [2022-07-22 21:49:11,203 INFO L132 encePairwiseOnDemand]: 140/153 looper letters, 60 selfloop transitions, 7 changer transitions 21/167 dead transitions. [2022-07-22 21:49:11,204 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 164 places, 167 transitions, 623 flow [2022-07-22 21:49:11,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-22 21:49:11,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-07-22 21:49:11,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1184 transitions. [2022-07-22 21:49:11,206 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.644880174291939 [2022-07-22 21:49:11,207 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1184 transitions. [2022-07-22 21:49:11,207 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1184 transitions. [2022-07-22 21:49:11,207 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-22 21:49:11,207 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1184 transitions. [2022-07-22 21:49:11,209 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 98.66666666666667) internal successors, (1184), 12 states have internal predecessors, (1184), 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) [2022-07-22 21:49:11,211 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 153.0) internal successors, (1989), 13 states have internal predecessors, (1989), 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) [2022-07-22 21:49:11,212 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 153.0) internal successors, (1989), 13 states have internal predecessors, (1989), 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) [2022-07-22 21:49:11,212 INFO L186 Difference]: Start difference. First operand has 153 places, 138 transitions, 367 flow. Second operand 12 states and 1184 transitions. [2022-07-22 21:49:11,212 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 164 places, 167 transitions, 623 flow [2022-07-22 21:49:11,214 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 159 places, 167 transitions, 610 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-07-22 21:49:11,215 INFO L242 Difference]: Finished difference. Result has 161 places, 132 transitions, 334 flow [2022-07-22 21:49:11,216 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=153, PETRI_DIFFERENCE_MINUEND_FLOW=354, PETRI_DIFFERENCE_MINUEND_PLACES=148, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=138, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=131, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=334, PETRI_PLACES=161, PETRI_TRANSITIONS=132} [2022-07-22 21:49:11,216 INFO L279 CegarLoopForPetriNet]: 137 programPoint places, 24 predicate places. [2022-07-22 21:49:11,216 INFO L495 AbstractCegarLoop]: Abstraction has has 161 places, 132 transitions, 334 flow [2022-07-22 21:49:11,217 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 96.0) internal successors, (960), 10 states have internal predecessors, (960), 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) [2022-07-22 21:49:11,217 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-22 21:49:11,217 INFO L200 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 21:49:11,217 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-22 21:49:11,217 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-07-22 21:49:11,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 21:49:11,218 INFO L85 PathProgramCache]: Analyzing trace with hash 1894826112, now seen corresponding path program 1 times [2022-07-22 21:49:11,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 21:49:11,218 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1669513186] [2022-07-22 21:49:11,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 21:49:11,219 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 21:49:11,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 21:49:11,293 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-07-22 21:49:11,294 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 21:49:11,294 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1669513186] [2022-07-22 21:49:11,294 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1669513186] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 21:49:11,294 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1915566159] [2022-07-22 21:49:11,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 21:49:11,295 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 21:49:11,295 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 21:49:11,312 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) [2022-07-22 21:49:11,349 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-22 21:49:11,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 21:49:11,408 INFO L263 TraceCheckSpWp]: Trace formula consists of 296 conjuncts, 8 conjunts are in the unsatisfiable core [2022-07-22 21:49:11,424 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 21:49:11,622 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-07-22 21:49:11,623 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-22 21:49:11,754 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-07-22 21:49:11,754 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1915566159] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-22 21:49:11,755 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-07-22 21:49:11,755 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [10, 9] total 18 [2022-07-22 21:49:11,755 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1702133657] [2022-07-22 21:49:11,755 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 21:49:11,755 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-22 21:49:11,755 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 21:49:11,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-22 21:49:11,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=236, Unknown=0, NotChecked=0, Total=306 [2022-07-22 21:49:11,757 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 153 [2022-07-22 21:49:11,758 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 161 places, 132 transitions, 334 flow. Second operand has 9 states, 9 states have (on average 109.33333333333333) internal successors, (984), 9 states have internal predecessors, (984), 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) [2022-07-22 21:49:11,758 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-22 21:49:11,759 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 153 [2022-07-22 21:49:11,759 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-22 21:49:12,114 INFO L129 PetriNetUnfolder]: 1452/2599 cut-off events. [2022-07-22 21:49:12,115 INFO L130 PetriNetUnfolder]: For 1025/1025 co-relation queries the response was YES. [2022-07-22 21:49:12,121 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6091 conditions, 2599 events. 1452/2599 cut-off events. For 1025/1025 co-relation queries the response was YES. Maximal size of possible extension queue 201. Compared 16990 event pairs, 335 based on Foata normal form. 10/2570 useless extension candidates. Maximal degree in co-relation 6075. Up to 683 conditions per place. [2022-07-22 21:49:12,130 INFO L132 encePairwiseOnDemand]: 142/153 looper letters, 95 selfloop transitions, 17 changer transitions 0/201 dead transitions. [2022-07-22 21:49:12,130 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 159 places, 201 transitions, 793 flow [2022-07-22 21:49:12,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-22 21:49:12,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-07-22 21:49:12,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1261 transitions. [2022-07-22 21:49:12,133 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.7492572786690433 [2022-07-22 21:49:12,133 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1261 transitions. [2022-07-22 21:49:12,133 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1261 transitions. [2022-07-22 21:49:12,134 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-22 21:49:12,134 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1261 transitions. [2022-07-22 21:49:12,136 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 114.63636363636364) internal successors, (1261), 11 states have internal predecessors, (1261), 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) [2022-07-22 21:49:12,137 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 153.0) internal successors, (1836), 12 states have internal predecessors, (1836), 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) [2022-07-22 21:49:12,139 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 153.0) internal successors, (1836), 12 states have internal predecessors, (1836), 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) [2022-07-22 21:49:12,139 INFO L186 Difference]: Start difference. First operand has 161 places, 132 transitions, 334 flow. Second operand 11 states and 1261 transitions. [2022-07-22 21:49:12,139 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 159 places, 201 transitions, 793 flow [2022-07-22 21:49:12,145 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 145 places, 201 transitions, 732 flow, removed 23 selfloop flow, removed 14 redundant places. [2022-07-22 21:49:12,148 INFO L242 Difference]: Finished difference. Result has 150 places, 144 transitions, 397 flow [2022-07-22 21:49:12,148 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=153, PETRI_DIFFERENCE_MINUEND_FLOW=303, PETRI_DIFFERENCE_MINUEND_PLACES=135, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=132, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=122, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=397, PETRI_PLACES=150, PETRI_TRANSITIONS=144} [2022-07-22 21:49:12,150 INFO L279 CegarLoopForPetriNet]: 137 programPoint places, 13 predicate places. [2022-07-22 21:49:12,150 INFO L495 AbstractCegarLoop]: Abstraction has has 150 places, 144 transitions, 397 flow [2022-07-22 21:49:12,151 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 109.33333333333333) internal successors, (984), 9 states have internal predecessors, (984), 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) [2022-07-22 21:49:12,151 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-22 21:49:12,151 INFO L200 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 21:49:12,170 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-07-22 21:49:12,369 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-07-22 21:49:12,370 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-07-22 21:49:12,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 21:49:12,371 INFO L85 PathProgramCache]: Analyzing trace with hash -1917419272, now seen corresponding path program 2 times [2022-07-22 21:49:12,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 21:49:12,372 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [221619137] [2022-07-22 21:49:12,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 21:49:12,375 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 21:49:12,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 21:49:12,468 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-07-22 21:49:12,468 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 21:49:12,469 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [221619137] [2022-07-22 21:49:12,469 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [221619137] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 21:49:12,469 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1721891152] [2022-07-22 21:49:12,469 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-22 21:49:12,469 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 21:49:12,469 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 21:49:12,470 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) [2022-07-22 21:49:12,471 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-07-22 21:49:12,551 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-07-22 21:49:12,551 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-22 21:49:12,552 INFO L263 TraceCheckSpWp]: Trace formula consists of 296 conjuncts, 6 conjunts are in the unsatisfiable core [2022-07-22 21:49:12,555 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 21:49:12,599 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-07-22 21:49:12,599 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-22 21:49:12,641 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-07-22 21:49:12,641 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1721891152] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-22 21:49:12,641 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-22 21:49:12,641 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 7, 7] total 15 [2022-07-22 21:49:12,641 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [166128008] [2022-07-22 21:49:12,642 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-22 21:49:12,642 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-07-22 21:49:12,642 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 21:49:12,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-07-22 21:49:12,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=169, Unknown=0, NotChecked=0, Total=210 [2022-07-22 21:49:12,644 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 103 out of 153 [2022-07-22 21:49:12,645 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 150 places, 144 transitions, 397 flow. Second operand has 15 states, 15 states have (on average 106.93333333333334) internal successors, (1604), 15 states have internal predecessors, (1604), 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) [2022-07-22 21:49:12,645 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-22 21:49:12,645 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 103 of 153 [2022-07-22 21:49:12,646 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-22 21:49:13,578 INFO L129 PetriNetUnfolder]: 3512/6215 cut-off events. [2022-07-22 21:49:13,579 INFO L130 PetriNetUnfolder]: For 3175/3186 co-relation queries the response was YES. [2022-07-22 21:49:13,590 INFO L84 FinitePrefix]: Finished finitePrefix Result has 15733 conditions, 6215 events. 3512/6215 cut-off events. For 3175/3186 co-relation queries the response was YES. Maximal size of possible extension queue 315. Compared 43158 event pairs, 177 based on Foata normal form. 14/5909 useless extension candidates. Maximal degree in co-relation 15721. Up to 647 conditions per place. [2022-07-22 21:49:13,663 INFO L132 encePairwiseOnDemand]: 137/153 looper letters, 209 selfloop transitions, 102 changer transitions 0/397 dead transitions. [2022-07-22 21:49:13,663 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 173 places, 397 transitions, 1936 flow [2022-07-22 21:49:13,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-07-22 21:49:13,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2022-07-22 21:49:13,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 2716 transitions. [2022-07-22 21:49:13,668 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.7396514161220044 [2022-07-22 21:49:13,668 INFO L72 ComplementDD]: Start complementDD. Operand 24 states and 2716 transitions. [2022-07-22 21:49:13,668 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 2716 transitions. [2022-07-22 21:49:13,669 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-22 21:49:13,669 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 24 states and 2716 transitions. [2022-07-22 21:49:13,672 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 25 states, 24 states have (on average 113.16666666666667) internal successors, (2716), 24 states have internal predecessors, (2716), 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) [2022-07-22 21:49:13,676 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 25 states, 25 states have (on average 153.0) internal successors, (3825), 25 states have internal predecessors, (3825), 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) [2022-07-22 21:49:13,677 INFO L81 ComplementDD]: Finished complementDD. Result has 25 states, 25 states have (on average 153.0) internal successors, (3825), 25 states have internal predecessors, (3825), 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) [2022-07-22 21:49:13,677 INFO L186 Difference]: Start difference. First operand has 150 places, 144 transitions, 397 flow. Second operand 24 states and 2716 transitions. [2022-07-22 21:49:13,677 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 173 places, 397 transitions, 1936 flow [2022-07-22 21:49:13,694 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 170 places, 397 transitions, 1931 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-07-22 21:49:13,697 INFO L242 Difference]: Finished difference. Result has 188 places, 233 transitions, 1217 flow [2022-07-22 21:49:13,697 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=153, PETRI_DIFFERENCE_MINUEND_FLOW=392, PETRI_DIFFERENCE_MINUEND_PLACES=147, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=144, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=122, PETRI_DIFFERENCE_SUBTRAHEND_STATES=24, PETRI_FLOW=1217, PETRI_PLACES=188, PETRI_TRANSITIONS=233} [2022-07-22 21:49:13,698 INFO L279 CegarLoopForPetriNet]: 137 programPoint places, 51 predicate places. [2022-07-22 21:49:13,698 INFO L495 AbstractCegarLoop]: Abstraction has has 188 places, 233 transitions, 1217 flow [2022-07-22 21:49:13,699 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 106.93333333333334) internal successors, (1604), 15 states have internal predecessors, (1604), 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) [2022-07-22 21:49:13,699 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-22 21:49:13,699 INFO L200 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 21:49:13,718 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-07-22 21:49:13,915 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,SelfDestructingSolverStorable6 [2022-07-22 21:49:13,916 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-07-22 21:49:13,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 21:49:13,917 INFO L85 PathProgramCache]: Analyzing trace with hash 89153126, now seen corresponding path program 3 times [2022-07-22 21:49:13,917 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 21:49:13,917 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1455155891] [2022-07-22 21:49:13,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 21:49:13,918 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 21:49:13,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 21:49:14,006 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 21:49:14,006 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 21:49:14,006 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1455155891] [2022-07-22 21:49:14,006 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1455155891] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 21:49:14,006 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1604232011] [2022-07-22 21:49:14,006 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-07-22 21:49:14,006 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 21:49:14,006 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 21:49:14,010 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) [2022-07-22 21:49:14,020 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-07-22 21:49:14,096 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-07-22 21:49:14,096 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-22 21:49:14,098 INFO L263 TraceCheckSpWp]: Trace formula consists of 296 conjuncts, 8 conjunts are in the unsatisfiable core [2022-07-22 21:49:14,100 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 21:49:14,214 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 21:49:14,215 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-22 21:49:14,368 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 21:49:14,369 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1604232011] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-22 21:49:14,369 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-22 21:49:14,369 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9, 9] total 19 [2022-07-22 21:49:14,369 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1697824415] [2022-07-22 21:49:14,369 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-22 21:49:14,370 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-07-22 21:49:14,370 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 21:49:14,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-07-22 21:49:14,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=265, Unknown=0, NotChecked=0, Total=342 [2022-07-22 21:49:14,371 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 153 [2022-07-22 21:49:14,373 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 188 places, 233 transitions, 1217 flow. Second operand has 19 states, 19 states have (on average 108.84210526315789) internal successors, (2068), 19 states have internal predecessors, (2068), 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) [2022-07-22 21:49:14,373 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-22 21:49:14,373 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 153 [2022-07-22 21:49:14,373 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-22 21:49:15,607 INFO L129 PetriNetUnfolder]: 4101/7710 cut-off events. [2022-07-22 21:49:15,608 INFO L130 PetriNetUnfolder]: For 27878/27992 co-relation queries the response was YES. [2022-07-22 21:49:15,633 INFO L84 FinitePrefix]: Finished finitePrefix Result has 28028 conditions, 7710 events. 4101/7710 cut-off events. For 27878/27992 co-relation queries the response was YES. Maximal size of possible extension queue 455. Compared 60634 event pairs, 285 based on Foata normal form. 83/7734 useless extension candidates. Maximal degree in co-relation 27998. Up to 1269 conditions per place. [2022-07-22 21:49:15,667 INFO L132 encePairwiseOnDemand]: 139/153 looper letters, 211 selfloop transitions, 124 changer transitions 0/441 dead transitions. [2022-07-22 21:49:15,667 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 203 places, 441 transitions, 3257 flow [2022-07-22 21:49:15,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-07-22 21:49:15,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2022-07-22 21:49:15,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1845 transitions. [2022-07-22 21:49:15,670 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.7536764705882353 [2022-07-22 21:49:15,670 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 1845 transitions. [2022-07-22 21:49:15,670 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 1845 transitions. [2022-07-22 21:49:15,671 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-22 21:49:15,671 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 1845 transitions. [2022-07-22 21:49:15,674 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 115.3125) internal successors, (1845), 16 states have internal predecessors, (1845), 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) [2022-07-22 21:49:15,676 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 153.0) internal successors, (2601), 17 states have internal predecessors, (2601), 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) [2022-07-22 21:49:15,677 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 153.0) internal successors, (2601), 17 states have internal predecessors, (2601), 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) [2022-07-22 21:49:15,677 INFO L186 Difference]: Start difference. First operand has 188 places, 233 transitions, 1217 flow. Second operand 16 states and 1845 transitions. [2022-07-22 21:49:15,677 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 203 places, 441 transitions, 3257 flow [2022-07-22 21:49:15,842 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 198 places, 441 transitions, 3196 flow, removed 26 selfloop flow, removed 5 redundant places. [2022-07-22 21:49:15,846 INFO L242 Difference]: Finished difference. Result has 206 places, 297 transitions, 2214 flow [2022-07-22 21:49:15,848 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=153, PETRI_DIFFERENCE_MINUEND_FLOW=1188, PETRI_DIFFERENCE_MINUEND_PLACES=183, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=233, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=64, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=153, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=2214, PETRI_PLACES=206, PETRI_TRANSITIONS=297} [2022-07-22 21:49:15,848 INFO L279 CegarLoopForPetriNet]: 137 programPoint places, 69 predicate places. [2022-07-22 21:49:15,848 INFO L495 AbstractCegarLoop]: Abstraction has has 206 places, 297 transitions, 2214 flow [2022-07-22 21:49:15,849 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 108.84210526315789) internal successors, (2068), 19 states have internal predecessors, (2068), 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) [2022-07-22 21:49:15,849 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-22 21:49:15,849 INFO L200 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 21:49:15,881 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-07-22 21:49:16,082 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 21:49:16,083 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-07-22 21:49:16,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 21:49:16,083 INFO L85 PathProgramCache]: Analyzing trace with hash 747743244, now seen corresponding path program 1 times [2022-07-22 21:49:16,083 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 21:49:16,084 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [964920287] [2022-07-22 21:49:16,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 21:49:16,084 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 21:49:16,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 21:49:16,134 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 21:49:16,134 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 21:49:16,134 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [964920287] [2022-07-22 21:49:16,134 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [964920287] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 21:49:16,134 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [24482689] [2022-07-22 21:49:16,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 21:49:16,135 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 21:49:16,135 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 21:49:16,136 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-22 21:49:16,137 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-07-22 21:49:16,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 21:49:16,212 INFO L263 TraceCheckSpWp]: Trace formula consists of 296 conjuncts, 6 conjunts are in the unsatisfiable core [2022-07-22 21:49:16,214 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 21:49:16,289 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 21:49:16,303 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-22 21:49:16,405 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 21:49:16,405 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [24482689] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-22 21:49:16,405 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-07-22 21:49:16,405 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [8, 7] total 14 [2022-07-22 21:49:16,405 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [869053503] [2022-07-22 21:49:16,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 21:49:16,406 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-22 21:49:16,406 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 21:49:16,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-22 21:49:16,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2022-07-22 21:49:16,406 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 153 [2022-07-22 21:49:16,407 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 206 places, 297 transitions, 2214 flow. Second operand has 7 states, 7 states have (on average 116.71428571428571) internal successors, (817), 7 states have internal predecessors, (817), 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) [2022-07-22 21:49:16,407 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-22 21:49:16,407 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 153 [2022-07-22 21:49:16,407 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-22 21:49:17,031 INFO L129 PetriNetUnfolder]: 2046/4577 cut-off events. [2022-07-22 21:49:17,031 INFO L130 PetriNetUnfolder]: For 27723/28634 co-relation queries the response was YES. [2022-07-22 21:49:17,059 INFO L84 FinitePrefix]: Finished finitePrefix Result has 17355 conditions, 4577 events. 2046/4577 cut-off events. For 27723/28634 co-relation queries the response was YES. Maximal size of possible extension queue 261. Compared 36362 event pairs, 616 based on Foata normal form. 316/4716 useless extension candidates. Maximal degree in co-relation 17317. Up to 1495 conditions per place. [2022-07-22 21:49:17,083 INFO L132 encePairwiseOnDemand]: 145/153 looper letters, 101 selfloop transitions, 24 changer transitions 0/332 dead transitions. [2022-07-22 21:49:17,083 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 212 places, 332 transitions, 2833 flow [2022-07-22 21:49:17,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-22 21:49:17,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-07-22 21:49:17,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 831 transitions. [2022-07-22 21:49:17,085 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.7759103641456583 [2022-07-22 21:49:17,085 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 831 transitions. [2022-07-22 21:49:17,085 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 831 transitions. [2022-07-22 21:49:17,086 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-22 21:49:17,086 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 831 transitions. [2022-07-22 21:49:17,087 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 118.71428571428571) internal successors, (831), 7 states have internal predecessors, (831), 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) [2022-07-22 21:49:17,088 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 153.0) internal successors, (1224), 8 states have internal predecessors, (1224), 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) [2022-07-22 21:49:17,089 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 153.0) internal successors, (1224), 8 states have internal predecessors, (1224), 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) [2022-07-22 21:49:17,089 INFO L186 Difference]: Start difference. First operand has 206 places, 297 transitions, 2214 flow. Second operand 7 states and 831 transitions. [2022-07-22 21:49:17,089 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 212 places, 332 transitions, 2833 flow [2022-07-22 21:49:17,175 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 202 places, 332 transitions, 2663 flow, removed 18 selfloop flow, removed 10 redundant places. [2022-07-22 21:49:17,179 INFO L242 Difference]: Finished difference. Result has 203 places, 297 transitions, 2129 flow [2022-07-22 21:49:17,179 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=153, PETRI_DIFFERENCE_MINUEND_FLOW=2056, PETRI_DIFFERENCE_MINUEND_PLACES=196, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=296, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=272, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=2129, PETRI_PLACES=203, PETRI_TRANSITIONS=297} [2022-07-22 21:49:17,179 INFO L279 CegarLoopForPetriNet]: 137 programPoint places, 66 predicate places. [2022-07-22 21:49:17,180 INFO L495 AbstractCegarLoop]: Abstraction has has 203 places, 297 transitions, 2129 flow [2022-07-22 21:49:17,180 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 116.71428571428571) internal successors, (817), 7 states have internal predecessors, (817), 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) [2022-07-22 21:49:17,180 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-22 21:49:17,180 INFO L200 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 21:49:17,199 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-07-22 21:49:17,397 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 21:49:17,397 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-07-22 21:49:17,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 21:49:17,397 INFO L85 PathProgramCache]: Analyzing trace with hash 1686542486, now seen corresponding path program 4 times [2022-07-22 21:49:17,398 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 21:49:17,398 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1639968684] [2022-07-22 21:49:17,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 21:49:17,398 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 21:49:17,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 21:49:17,478 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-07-22 21:49:17,478 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 21:49:17,478 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1639968684] [2022-07-22 21:49:17,479 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1639968684] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 21:49:17,479 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [703257506] [2022-07-22 21:49:17,479 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-07-22 21:49:17,479 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 21:49:17,479 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 21:49:17,480 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-22 21:49:17,499 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-07-22 21:49:17,554 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-07-22 21:49:17,555 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-22 21:49:17,555 INFO L263 TraceCheckSpWp]: Trace formula consists of 244 conjuncts, 8 conjunts are in the unsatisfiable core [2022-07-22 21:49:17,558 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 21:49:17,676 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-07-22 21:49:17,676 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-22 21:49:17,838 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-07-22 21:49:17,838 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [703257506] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-22 21:49:17,838 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-07-22 21:49:17,838 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [10, 9] total 19 [2022-07-22 21:49:17,839 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1141808326] [2022-07-22 21:49:17,839 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 21:49:17,839 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-22 21:49:17,839 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 21:49:17,840 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-22 21:49:17,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=264, Unknown=0, NotChecked=0, Total=342 [2022-07-22 21:49:17,840 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 153 [2022-07-22 21:49:17,841 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 203 places, 297 transitions, 2129 flow. Second operand has 9 states, 9 states have (on average 109.33333333333333) internal successors, (984), 9 states have internal predecessors, (984), 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) [2022-07-22 21:49:17,841 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-22 21:49:17,841 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 153 [2022-07-22 21:49:17,842 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-22 21:49:18,794 INFO L129 PetriNetUnfolder]: 3359/6361 cut-off events. [2022-07-22 21:49:18,795 INFO L130 PetriNetUnfolder]: For 24337/24621 co-relation queries the response was YES. [2022-07-22 21:49:18,822 INFO L84 FinitePrefix]: Finished finitePrefix Result has 24798 conditions, 6361 events. 3359/6361 cut-off events. For 24337/24621 co-relation queries the response was YES. Maximal size of possible extension queue 331. Compared 47193 event pairs, 446 based on Foata normal form. 96/6391 useless extension candidates. Maximal degree in co-relation 24762. Up to 2559 conditions per place. [2022-07-22 21:49:18,853 INFO L132 encePairwiseOnDemand]: 140/153 looper letters, 149 selfloop transitions, 108 changer transitions 0/363 dead transitions. [2022-07-22 21:49:18,854 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 212 places, 363 transitions, 3039 flow [2022-07-22 21:49:18,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-22 21:49:18,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-07-22 21:49:18,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1149 transitions. [2022-07-22 21:49:18,858 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.7509803921568627 [2022-07-22 21:49:18,858 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1149 transitions. [2022-07-22 21:49:18,858 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1149 transitions. [2022-07-22 21:49:18,859 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-22 21:49:18,859 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1149 transitions. [2022-07-22 21:49:18,861 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 114.9) internal successors, (1149), 10 states have internal predecessors, (1149), 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) [2022-07-22 21:49:18,863 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 153.0) internal successors, (1683), 11 states have internal predecessors, (1683), 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) [2022-07-22 21:49:18,864 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 153.0) internal successors, (1683), 11 states have internal predecessors, (1683), 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) [2022-07-22 21:49:18,864 INFO L186 Difference]: Start difference. First operand has 203 places, 297 transitions, 2129 flow. Second operand 10 states and 1149 transitions. [2022-07-22 21:49:18,864 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 212 places, 363 transitions, 3039 flow [2022-07-22 21:49:18,969 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 207 places, 363 transitions, 3008 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-07-22 21:49:18,973 INFO L242 Difference]: Finished difference. Result has 210 places, 306 transitions, 2575 flow [2022-07-22 21:49:18,974 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=153, PETRI_DIFFERENCE_MINUEND_FLOW=2102, PETRI_DIFFERENCE_MINUEND_PLACES=198, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=297, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=99, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=190, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=2575, PETRI_PLACES=210, PETRI_TRANSITIONS=306} [2022-07-22 21:49:18,975 INFO L279 CegarLoopForPetriNet]: 137 programPoint places, 73 predicate places. [2022-07-22 21:49:18,975 INFO L495 AbstractCegarLoop]: Abstraction has has 210 places, 306 transitions, 2575 flow [2022-07-22 21:49:18,975 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 109.33333333333333) internal successors, (984), 9 states have internal predecessors, (984), 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) [2022-07-22 21:49:18,975 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-22 21:49:18,975 INFO L200 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 21:49:18,992 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-07-22 21:49:19,191 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-07-22 21:49:19,191 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-07-22 21:49:19,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 21:49:19,192 INFO L85 PathProgramCache]: Analyzing trace with hash -1629702732, now seen corresponding path program 5 times [2022-07-22 21:49:19,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 21:49:19,192 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1461722495] [2022-07-22 21:49:19,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 21:49:19,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 21:49:19,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 21:49:19,299 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-07-22 21:49:19,299 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 21:49:19,300 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1461722495] [2022-07-22 21:49:19,300 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1461722495] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 21:49:19,300 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [703401053] [2022-07-22 21:49:19,300 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-07-22 21:49:19,300 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 21:49:19,300 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 21:49:19,305 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-22 21:49:19,341 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-07-22 21:49:19,415 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-07-22 21:49:19,415 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-22 21:49:19,416 INFO L263 TraceCheckSpWp]: Trace formula consists of 296 conjuncts, 6 conjunts are in the unsatisfiable core [2022-07-22 21:49:19,418 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 21:49:19,496 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-07-22 21:49:19,497 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-22 21:49:19,579 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-07-22 21:49:19,579 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [703401053] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-22 21:49:19,579 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-22 21:49:19,579 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 7, 7] total 17 [2022-07-22 21:49:19,580 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [242364080] [2022-07-22 21:49:19,580 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-22 21:49:19,580 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-07-22 21:49:19,580 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 21:49:19,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-07-22 21:49:19,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=223, Unknown=0, NotChecked=0, Total=272 [2022-07-22 21:49:19,582 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 103 out of 153 [2022-07-22 21:49:19,583 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 210 places, 306 transitions, 2575 flow. Second operand has 17 states, 17 states have (on average 106.47058823529412) internal successors, (1810), 17 states have internal predecessors, (1810), 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) [2022-07-22 21:49:19,583 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-22 21:49:19,583 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 103 of 153 [2022-07-22 21:49:19,583 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-22 21:49:21,312 INFO L129 PetriNetUnfolder]: 5124/9286 cut-off events. [2022-07-22 21:49:21,312 INFO L130 PetriNetUnfolder]: For 53726/53988 co-relation queries the response was YES. [2022-07-22 21:49:21,344 INFO L84 FinitePrefix]: Finished finitePrefix Result has 39290 conditions, 9286 events. 5124/9286 cut-off events. For 53726/53988 co-relation queries the response was YES. Maximal size of possible extension queue 429. Compared 69363 event pairs, 621 based on Foata normal form. 66/9293 useless extension candidates. Maximal degree in co-relation 39251. Up to 1016 conditions per place. [2022-07-22 21:49:21,387 INFO L132 encePairwiseOnDemand]: 137/153 looper letters, 266 selfloop transitions, 225 changer transitions 0/577 dead transitions. [2022-07-22 21:49:21,388 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 233 places, 577 transitions, 5453 flow [2022-07-22 21:49:21,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-07-22 21:49:21,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2022-07-22 21:49:21,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 2748 transitions. [2022-07-22 21:49:21,391 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.7483660130718954 [2022-07-22 21:49:21,391 INFO L72 ComplementDD]: Start complementDD. Operand 24 states and 2748 transitions. [2022-07-22 21:49:21,391 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 2748 transitions. [2022-07-22 21:49:21,392 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-22 21:49:21,392 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 24 states and 2748 transitions. [2022-07-22 21:49:21,395 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 25 states, 24 states have (on average 114.5) internal successors, (2748), 24 states have internal predecessors, (2748), 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) [2022-07-22 21:49:21,398 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 25 states, 25 states have (on average 153.0) internal successors, (3825), 25 states have internal predecessors, (3825), 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) [2022-07-22 21:49:21,399 INFO L81 ComplementDD]: Finished complementDD. Result has 25 states, 25 states have (on average 153.0) internal successors, (3825), 25 states have internal predecessors, (3825), 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) [2022-07-22 21:49:21,400 INFO L186 Difference]: Start difference. First operand has 210 places, 306 transitions, 2575 flow. Second operand 24 states and 2748 transitions. [2022-07-22 21:49:21,400 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 233 places, 577 transitions, 5453 flow [2022-07-22 21:49:21,631 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 227 places, 577 transitions, 5287 flow, removed 26 selfloop flow, removed 6 redundant places. [2022-07-22 21:49:21,637 INFO L242 Difference]: Finished difference. Result has 237 places, 395 transitions, 3962 flow [2022-07-22 21:49:21,637 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=153, PETRI_DIFFERENCE_MINUEND_FLOW=2463, PETRI_DIFFERENCE_MINUEND_PLACES=204, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=306, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=136, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=155, PETRI_DIFFERENCE_SUBTRAHEND_STATES=24, PETRI_FLOW=3962, PETRI_PLACES=237, PETRI_TRANSITIONS=395} [2022-07-22 21:49:21,638 INFO L279 CegarLoopForPetriNet]: 137 programPoint places, 100 predicate places. [2022-07-22 21:49:21,638 INFO L495 AbstractCegarLoop]: Abstraction has has 237 places, 395 transitions, 3962 flow [2022-07-22 21:49:21,639 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 106.47058823529412) internal successors, (1810), 17 states have internal predecessors, (1810), 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) [2022-07-22 21:49:21,639 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-22 21:49:21,639 INFO L200 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 21:49:21,664 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-07-22 21:49:21,864 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 21:49:21,864 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-07-22 21:49:21,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 21:49:21,865 INFO L85 PathProgramCache]: Analyzing trace with hash 212541326, now seen corresponding path program 6 times [2022-07-22 21:49:21,865 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 21:49:21,865 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1249940780] [2022-07-22 21:49:21,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 21:49:21,865 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 21:49:21,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 21:49:21,950 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-07-22 21:49:21,950 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 21:49:21,951 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1249940780] [2022-07-22 21:49:21,951 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1249940780] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 21:49:21,951 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1731131420] [2022-07-22 21:49:21,951 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-07-22 21:49:21,951 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 21:49:21,951 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 21:49:21,962 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-22 21:49:21,963 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-07-22 21:49:22,044 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s) [2022-07-22 21:49:22,044 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-22 21:49:22,046 INFO L263 TraceCheckSpWp]: Trace formula consists of 296 conjuncts, 6 conjunts are in the unsatisfiable core [2022-07-22 21:49:22,047 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 21:49:22,195 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-07-22 21:49:22,196 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-22 21:49:22,284 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-07-22 21:49:22,285 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1731131420] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-22 21:49:22,285 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-22 21:49:22,285 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 7, 7] total 17 [2022-07-22 21:49:22,285 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [725149555] [2022-07-22 21:49:22,286 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-22 21:49:22,287 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-07-22 21:49:22,287 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 21:49:22,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-07-22 21:49:22,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=219, Unknown=0, NotChecked=0, Total=272 [2022-07-22 21:49:22,292 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 103 out of 153 [2022-07-22 21:49:22,294 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 237 places, 395 transitions, 3962 flow. Second operand has 17 states, 17 states have (on average 106.47058823529412) internal successors, (1810), 17 states have internal predecessors, (1810), 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) [2022-07-22 21:49:22,295 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-22 21:49:22,295 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 103 of 153 [2022-07-22 21:49:22,295 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-22 21:49:24,715 INFO L129 PetriNetUnfolder]: 5998/10779 cut-off events. [2022-07-22 21:49:24,715 INFO L130 PetriNetUnfolder]: For 74600/74790 co-relation queries the response was YES. [2022-07-22 21:49:24,777 INFO L84 FinitePrefix]: Finished finitePrefix Result has 48290 conditions, 10779 events. 5998/10779 cut-off events. For 74600/74790 co-relation queries the response was YES. Maximal size of possible extension queue 477. Compared 81062 event pairs, 445 based on Foata normal form. 16/10735 useless extension candidates. Maximal degree in co-relation 48242. Up to 1214 conditions per place. [2022-07-22 21:49:24,831 INFO L132 encePairwiseOnDemand]: 137/153 looper letters, 304 selfloop transitions, 296 changer transitions 0/686 dead transitions. [2022-07-22 21:49:24,831 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 270 places, 686 transitions, 7054 flow [2022-07-22 21:49:24,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-07-22 21:49:24,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2022-07-22 21:49:24,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 3882 transitions. [2022-07-22 21:49:24,836 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.7462514417531718 [2022-07-22 21:49:24,836 INFO L72 ComplementDD]: Start complementDD. Operand 34 states and 3882 transitions. [2022-07-22 21:49:24,836 INFO L73 IsDeterministic]: Start isDeterministic. Operand 34 states and 3882 transitions. [2022-07-22 21:49:24,838 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-22 21:49:24,838 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 34 states and 3882 transitions. [2022-07-22 21:49:24,844 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 35 states, 34 states have (on average 114.17647058823529) internal successors, (3882), 34 states have internal predecessors, (3882), 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) [2022-07-22 21:49:24,921 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 35 states, 35 states have (on average 153.0) internal successors, (5355), 35 states have internal predecessors, (5355), 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) [2022-07-22 21:49:24,921 INFO L81 ComplementDD]: Finished complementDD. Result has 35 states, 35 states have (on average 153.0) internal successors, (5355), 35 states have internal predecessors, (5355), 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) [2022-07-22 21:49:24,921 INFO L186 Difference]: Start difference. First operand has 237 places, 395 transitions, 3962 flow. Second operand 34 states and 3882 transitions. [2022-07-22 21:49:24,921 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 270 places, 686 transitions, 7054 flow [2022-07-22 21:49:25,321 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 264 places, 686 transitions, 6905 flow, removed 42 selfloop flow, removed 6 redundant places. [2022-07-22 21:49:25,328 INFO L242 Difference]: Finished difference. Result has 274 places, 448 transitions, 5309 flow [2022-07-22 21:49:25,329 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=153, PETRI_DIFFERENCE_MINUEND_FLOW=3829, PETRI_DIFFERENCE_MINUEND_PLACES=231, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=395, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=243, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=145, PETRI_DIFFERENCE_SUBTRAHEND_STATES=34, PETRI_FLOW=5309, PETRI_PLACES=274, PETRI_TRANSITIONS=448} [2022-07-22 21:49:25,330 INFO L279 CegarLoopForPetriNet]: 137 programPoint places, 137 predicate places. [2022-07-22 21:49:25,330 INFO L495 AbstractCegarLoop]: Abstraction has has 274 places, 448 transitions, 5309 flow [2022-07-22 21:49:25,330 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 106.47058823529412) internal successors, (1810), 17 states have internal predecessors, (1810), 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) [2022-07-22 21:49:25,330 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-22 21:49:25,331 INFO L200 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 21:49:25,354 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2022-07-22 21:49:25,554 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 21:49:25,555 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-07-22 21:49:25,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 21:49:25,555 INFO L85 PathProgramCache]: Analyzing trace with hash 2028426910, now seen corresponding path program 1 times [2022-07-22 21:49:25,555 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 21:49:25,556 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [308961473] [2022-07-22 21:49:25,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 21:49:25,556 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 21:49:25,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 21:49:25,931 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-07-22 21:49:25,931 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 21:49:25,931 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [308961473] [2022-07-22 21:49:25,931 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [308961473] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 21:49:25,931 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [429069526] [2022-07-22 21:49:25,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 21:49:25,931 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 21:49:25,931 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 21:49:25,938 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-22 21:49:25,939 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-07-22 21:49:26,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 21:49:26,027 INFO L263 TraceCheckSpWp]: Trace formula consists of 322 conjuncts, 61 conjunts are in the unsatisfiable core [2022-07-22 21:49:26,030 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 21:49:26,469 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-07-22 21:49:26,700 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-07-22 21:49:26,808 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-07-22 21:49:26,910 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 21:49:26,912 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-07-22 21:49:26,967 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 19 treesize of output 11 [2022-07-22 21:49:27,045 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 21:49:27,046 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-22 21:49:27,180 WARN L833 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_331 (Array Int Int))) (<= c_~res1~0 (+ c_~res2~0 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_331) c_~A~0.base) c_~A~0.offset)))) (forall ((v_ArrVal_331 (Array Int Int))) (< (+ c_~res2~0 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_331) c_~A~0.base) c_~A~0.offset)) (+ c_~res1~0 1)))) is different from false [2022-07-22 21:49:27,263 WARN L833 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_331 (Array Int Int))) (<= (+ (select (select |c_#memory_int| c_~A~0.base) (+ c_~A~0.offset (* |c_thread1Thread1of1ForFork2_~i~0#1| 4))) c_~res1~0) (+ c_~res2~0 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_331) c_~A~0.base) c_~A~0.offset)))) (forall ((v_ArrVal_331 (Array Int Int))) (< (+ c_~res2~0 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_331) c_~A~0.base) c_~A~0.offset)) (+ (select (select |c_#memory_int| c_~A~0.base) (+ c_~A~0.offset (* |c_thread1Thread1of1ForFork2_~i~0#1| 4))) c_~res1~0 1)))) is different from false [2022-07-22 21:49:27,293 WARN L833 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_331 (Array Int Int)) (v_ArrVal_330 (Array Int Int))) (let ((.cse0 (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_330))) (< (+ c_~res2~0 (select (select (store .cse0 |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_331) c_~A~0.base) c_~A~0.offset)) (+ c_~res1~0 (select (select .cse0 c_~A~0.base) (+ c_~A~0.offset (* |c_thread1Thread1of1ForFork2_~i~0#1| 4))) 1)))) (forall ((v_ArrVal_331 (Array Int Int)) (v_ArrVal_330 (Array Int Int))) (let ((.cse1 (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_330))) (<= (+ c_~res1~0 (select (select .cse1 c_~A~0.base) (+ c_~A~0.offset (* |c_thread1Thread1of1ForFork2_~i~0#1| 4)))) (+ c_~res2~0 (select (select (store .cse1 |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_331) c_~A~0.base) c_~A~0.offset)))))) is different from false [2022-07-22 21:49:27,320 WARN L833 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_331 (Array Int Int)) (v_ArrVal_330 (Array Int Int))) (let ((.cse0 (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_330))) (< (+ c_~res2~0 (select (select (store .cse0 |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_331) c_~A~0.base) c_~A~0.offset)) (+ c_~res1~0 (select (select .cse0 c_~A~0.base) c_~A~0.offset) 1)))) (forall ((v_ArrVal_331 (Array Int Int)) (v_ArrVal_330 (Array Int Int))) (let ((.cse1 (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_330))) (<= (+ c_~res1~0 (select (select .cse1 c_~A~0.base) c_~A~0.offset)) (+ c_~res2~0 (select (select (store .cse1 |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_331) c_~A~0.base) c_~A~0.offset)))))) is different from false [2022-07-22 21:49:27,334 WARN L833 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_329 (Array Int Int)) (v_ArrVal_331 (Array Int Int)) (v_ArrVal_330 (Array Int Int))) (let ((.cse0 (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_329) |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_330))) (<= (+ c_~res1~0 (select (select .cse0 c_~A~0.base) c_~A~0.offset)) (+ (select (select (store .cse0 |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_331) c_~A~0.base) c_~A~0.offset) c_~res2~0)))) (forall ((v_ArrVal_329 (Array Int Int)) (v_ArrVal_331 (Array Int Int)) (v_ArrVal_330 (Array Int Int))) (let ((.cse1 (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_329) |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_330))) (< (+ (select (select (store .cse1 |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_331) c_~A~0.base) c_~A~0.offset) c_~res2~0) (+ c_~res1~0 (select (select .cse1 c_~A~0.base) c_~A~0.offset) 1))))) is different from false [2022-07-22 21:49:27,392 WARN L833 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_329 (Array Int Int)) (v_ArrVal_331 (Array Int Int)) (v_ArrVal_330 (Array Int Int))) (let ((.cse0 (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_329) |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_330))) (<= (+ c_~res1~0 (select (select .cse0 |c_ULTIMATE.start_main_#t~ret12#1.base|) |c_ULTIMATE.start_main_#t~ret12#1.offset|)) (+ c_~res2~0 (select (select (store .cse0 |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_331) |c_ULTIMATE.start_main_#t~ret12#1.base|) |c_ULTIMATE.start_main_#t~ret12#1.offset|))))) (forall ((v_ArrVal_329 (Array Int Int)) (v_ArrVal_331 (Array Int Int)) (v_ArrVal_330 (Array Int Int))) (let ((.cse1 (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_329) |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_330))) (< (+ c_~res2~0 (select (select (store .cse1 |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_331) |c_ULTIMATE.start_main_#t~ret12#1.base|) |c_ULTIMATE.start_main_#t~ret12#1.offset|)) (+ c_~res1~0 (select (select .cse1 |c_ULTIMATE.start_main_#t~ret12#1.base|) |c_ULTIMATE.start_main_#t~ret12#1.offset|) 1))))) is different from false [2022-07-22 21:49:27,405 WARN L833 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_329 (Array Int Int)) (v_ArrVal_331 (Array Int Int)) (v_ArrVal_330 (Array Int Int))) (let ((.cse0 (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_329) |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_330))) (<= (+ c_~res1~0 (select (select .cse0 |c_ULTIMATE.start_create_fresh_int_array_#res#1.base|) |c_ULTIMATE.start_create_fresh_int_array_#res#1.offset|)) (+ c_~res2~0 (select (select (store .cse0 |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_331) |c_ULTIMATE.start_create_fresh_int_array_#res#1.base|) |c_ULTIMATE.start_create_fresh_int_array_#res#1.offset|))))) (forall ((v_ArrVal_329 (Array Int Int)) (v_ArrVal_331 (Array Int Int)) (v_ArrVal_330 (Array Int Int))) (let ((.cse1 (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_329) |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_330))) (< (+ c_~res2~0 (select (select (store .cse1 |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_331) |c_ULTIMATE.start_create_fresh_int_array_#res#1.base|) |c_ULTIMATE.start_create_fresh_int_array_#res#1.offset|)) (+ c_~res1~0 (select (select .cse1 |c_ULTIMATE.start_create_fresh_int_array_#res#1.base|) |c_ULTIMATE.start_create_fresh_int_array_#res#1.offset|) 1))))) is different from false [2022-07-22 21:49:27,413 WARN L833 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_329 (Array Int Int)) (v_ArrVal_331 (Array Int Int)) (v_ArrVal_330 (Array Int Int))) (let ((.cse0 (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_329) |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_330))) (< (+ c_~res2~0 (select (select (store .cse0 |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_331) |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.base|) |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.offset|)) (+ c_~res1~0 (select (select .cse0 |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.base|) |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.offset|) 1)))) (forall ((v_ArrVal_329 (Array Int Int)) (v_ArrVal_331 (Array Int Int)) (v_ArrVal_330 (Array Int Int))) (let ((.cse1 (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_329) |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_330))) (<= (+ c_~res1~0 (select (select .cse1 |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.base|) |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.offset|)) (+ c_~res2~0 (select (select (store .cse1 |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_331) |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.base|) |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.offset|)))))) is different from false [2022-07-22 21:49:27,445 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-22 21:49:27,446 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 54 treesize of output 43 [2022-07-22 21:49:27,451 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 2566 treesize of output 2406 [2022-07-22 21:49:27,464 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 2406 treesize of output 2278 [2022-07-22 21:49:27,476 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 2278 treesize of output 2150 [2022-07-22 21:49:27,489 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 2150 treesize of output 2070