./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/weaver/popl20-send-receive.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 35987657 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-send-receive.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 238e609d3671ff2de494998b0abc6a14651375b5eb423e7b66fc3d987b466268 --- Real Ultimate output --- This is Ultimate 0.2.2-?-3598765 [2022-07-21 09:14:35,806 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-21 09:14:35,808 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-21 09:14:35,847 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-21 09:14:35,848 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-21 09:14:35,848 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-21 09:14:35,851 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-21 09:14:35,853 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-21 09:14:35,855 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-21 09:14:35,858 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-21 09:14:35,859 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-21 09:14:35,863 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-21 09:14:35,863 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-21 09:14:35,864 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-21 09:14:35,865 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-21 09:14:35,867 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-21 09:14:35,867 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-21 09:14:35,869 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-21 09:14:35,870 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-21 09:14:35,874 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-21 09:14:35,875 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-21 09:14:35,875 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-21 09:14:35,877 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-21 09:14:35,877 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-21 09:14:35,878 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-21 09:14:35,884 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-21 09:14:35,884 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-21 09:14:35,884 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-21 09:14:35,885 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-21 09:14:35,885 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-21 09:14:35,886 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-21 09:14:35,886 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-21 09:14:35,887 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-21 09:14:35,887 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-21 09:14:35,888 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-21 09:14:35,889 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-21 09:14:35,889 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-21 09:14:35,890 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-21 09:14:35,890 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-21 09:14:35,890 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-21 09:14:35,891 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-21 09:14:35,891 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-21 09:14:35,895 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-21 09:14:35,920 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-21 09:14:35,921 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-21 09:14:35,921 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-21 09:14:35,921 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-21 09:14:35,922 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-21 09:14:35,922 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-21 09:14:35,922 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-21 09:14:35,923 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-21 09:14:35,923 INFO L138 SettingsManager]: * Use SBE=true [2022-07-21 09:14:35,924 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-21 09:14:35,924 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-21 09:14:35,924 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-21 09:14:35,924 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-21 09:14:35,924 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-21 09:14:35,924 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-21 09:14:35,924 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-21 09:14:35,925 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-21 09:14:35,925 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-21 09:14:35,925 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-21 09:14:35,925 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-21 09:14:35,925 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-21 09:14:35,925 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-21 09:14:35,925 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-21 09:14:35,926 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-21 09:14:35,926 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 09:14:35,926 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-21 09:14:35,926 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-21 09:14:35,926 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-21 09:14:35,926 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-21 09:14:35,926 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-21 09:14:35,927 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-21 09:14:35,927 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-21 09:14:35,927 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-21 09:14:35,927 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 238e609d3671ff2de494998b0abc6a14651375b5eb423e7b66fc3d987b466268 [2022-07-21 09:14:36,182 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-21 09:14:36,198 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-21 09:14:36,199 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-21 09:14:36,200 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-21 09:14:36,201 INFO L275 PluginConnector]: CDTParser initialized [2022-07-21 09:14:36,202 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/popl20-send-receive.wvr.c [2022-07-21 09:14:36,240 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/04c19a02f/61c181ca7b054a99b2eea8456ce603c7/FLAG0e0d7d036 [2022-07-21 09:14:36,556 INFO L306 CDTParser]: Found 1 translation units. [2022-07-21 09:14:36,556 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/popl20-send-receive.wvr.c [2022-07-21 09:14:36,564 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/04c19a02f/61c181ca7b054a99b2eea8456ce603c7/FLAG0e0d7d036 [2022-07-21 09:14:36,987 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/04c19a02f/61c181ca7b054a99b2eea8456ce603c7 [2022-07-21 09:14:36,989 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-21 09:14:36,990 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-21 09:14:36,991 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-21 09:14:36,991 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-21 09:14:37,000 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-21 09:14:37,001 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 09:14:36" (1/1) ... [2022-07-21 09:14:37,002 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f019713 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 09:14:37, skipping insertion in model container [2022-07-21 09:14:37,002 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 09:14:36" (1/1) ... [2022-07-21 09:14:37,007 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-21 09:14:37,019 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-21 09:14:37,121 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-send-receive.wvr.c[3107,3120] [2022-07-21 09:14:37,126 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 09:14:37,131 INFO L203 MainTranslator]: Completed pre-run [2022-07-21 09:14:37,181 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-send-receive.wvr.c[3107,3120] [2022-07-21 09:14:37,192 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 09:14:37,202 INFO L208 MainTranslator]: Completed translation [2022-07-21 09:14:37,203 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 09:14:37 WrapperNode [2022-07-21 09:14:37,203 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-21 09:14:37,204 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-21 09:14:37,204 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-21 09:14:37,205 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-21 09:14:37,209 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 09:14:37" (1/1) ... [2022-07-21 09:14:37,222 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 09:14:37" (1/1) ... [2022-07-21 09:14:37,245 INFO L137 Inliner]: procedures = 25, calls = 52, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 161 [2022-07-21 09:14:37,246 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-21 09:14:37,247 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-21 09:14:37,247 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-21 09:14:37,247 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-21 09:14:37,252 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 09:14:37" (1/1) ... [2022-07-21 09:14:37,253 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 09:14:37" (1/1) ... [2022-07-21 09:14:37,264 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 09:14:37" (1/1) ... [2022-07-21 09:14:37,264 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 09:14:37" (1/1) ... [2022-07-21 09:14:37,274 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 09:14:37" (1/1) ... [2022-07-21 09:14:37,280 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 09:14:37" (1/1) ... [2022-07-21 09:14:37,283 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 09:14:37" (1/1) ... [2022-07-21 09:14:37,287 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-21 09:14:37,289 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-21 09:14:37,290 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-21 09:14:37,290 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-21 09:14:37,290 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 09:14:37" (1/1) ... [2022-07-21 09:14:37,295 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 09:14:37,305 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 09:14:37,331 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) [2022-07-21 09:14:37,365 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 [2022-07-21 09:14:37,380 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-21 09:14:37,380 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-21 09:14:37,380 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-21 09:14:37,380 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-21 09:14:37,381 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-07-21 09:14:37,381 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-07-21 09:14:37,381 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-07-21 09:14:37,381 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-07-21 09:14:37,381 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-07-21 09:14:37,381 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-07-21 09:14:37,381 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-21 09:14:37,381 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-07-21 09:14:37,381 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-07-21 09:14:37,382 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-21 09:14:37,382 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-21 09:14:37,382 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-21 09:14:37,382 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-21 09:14:37,383 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-07-21 09:14:37,490 INFO L234 CfgBuilder]: Building ICFG [2022-07-21 09:14:37,491 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-21 09:14:37,725 INFO L275 CfgBuilder]: Performing block encoding [2022-07-21 09:14:37,797 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-21 09:14:37,797 INFO L299 CfgBuilder]: Removed 3 assume(true) statements. [2022-07-21 09:14:37,800 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 09:14:37 BoogieIcfgContainer [2022-07-21 09:14:37,800 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-21 09:14:37,801 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-21 09:14:37,801 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-21 09:14:37,804 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-21 09:14:37,804 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 09:14:36" (1/3) ... [2022-07-21 09:14:37,805 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10cd69bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 09:14:37, skipping insertion in model container [2022-07-21 09:14:37,805 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 09:14:37" (2/3) ... [2022-07-21 09:14:37,805 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10cd69bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 09:14:37, skipping insertion in model container [2022-07-21 09:14:37,805 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 09:14:37" (3/3) ... [2022-07-21 09:14:37,807 INFO L111 eAbstractionObserver]: Analyzing ICFG popl20-send-receive.wvr.c [2022-07-21 09:14:37,811 WARN L143 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-07-21 09:14:37,817 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-21 09:14:37,817 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-21 09:14:37,818 INFO L509 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-07-21 09:14:37,884 INFO L135 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-07-21 09:14:37,910 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 142 places, 142 transitions, 308 flow [2022-07-21 09:14:37,974 INFO L129 PetriNetUnfolder]: 10/139 cut-off events. [2022-07-21 09:14:37,975 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-07-21 09:14:37,978 INFO L84 FinitePrefix]: Finished finitePrefix Result has 152 conditions, 139 events. 10/139 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 93 event pairs, 0 based on Foata normal form. 0/128 useless extension candidates. Maximal degree in co-relation 116. Up to 2 conditions per place. [2022-07-21 09:14:37,978 INFO L82 GeneralOperation]: Start removeDead. Operand has 142 places, 142 transitions, 308 flow [2022-07-21 09:14:37,985 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 128 places, 128 transitions, 274 flow [2022-07-21 09:14:37,998 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-21 09:14:38,005 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@763b79ea, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@36e2082 [2022-07-21 09:14:38,005 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-07-21 09:14:38,046 INFO L129 PetriNetUnfolder]: 10/127 cut-off events. [2022-07-21 09:14:38,047 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-07-21 09:14:38,047 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-21 09:14:38,048 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] [2022-07-21 09:14:38,048 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)] === [2022-07-21 09:14:38,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 09:14:38,053 INFO L85 PathProgramCache]: Analyzing trace with hash -1295974227, now seen corresponding path program 1 times [2022-07-21 09:14:38,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 09:14:38,060 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [982588142] [2022-07-21 09:14:38,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 09:14:38,061 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 09:14:38,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:14:38,234 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 09:14:38,235 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 09:14:38,235 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [982588142] [2022-07-21 09:14:38,235 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [982588142] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 09:14:38,236 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 09:14:38,236 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-21 09:14:38,237 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2044992450] [2022-07-21 09:14:38,237 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 09:14:38,243 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-21 09:14:38,243 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 09:14:38,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-21 09:14:38,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-21 09:14:38,267 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 126 out of 142 [2022-07-21 09:14:38,270 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 128 places, 128 transitions, 274 flow. Second operand has 2 states, 2 states have (on average 130.0) internal successors, (260), 2 states have internal predecessors, (260), 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) [2022-07-21 09:14:38,271 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-21 09:14:38,271 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 126 of 142 [2022-07-21 09:14:38,272 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-21 09:14:38,352 INFO L129 PetriNetUnfolder]: 21/174 cut-off events. [2022-07-21 09:14:38,353 INFO L130 PetriNetUnfolder]: For 26/27 co-relation queries the response was YES. [2022-07-21 09:14:38,354 INFO L84 FinitePrefix]: Finished finitePrefix Result has 231 conditions, 174 events. 21/174 cut-off events. For 26/27 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 302 event pairs, 7 based on Foata normal form. 20/176 useless extension candidates. Maximal degree in co-relation 141. Up to 33 conditions per place. [2022-07-21 09:14:38,355 INFO L132 encePairwiseOnDemand]: 136/142 looper letters, 9 selfloop transitions, 0 changer transitions 2/122 dead transitions. [2022-07-21 09:14:38,355 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 129 places, 122 transitions, 280 flow [2022-07-21 09:14:38,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-21 09:14:38,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-07-21 09:14:38,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 267 transitions. [2022-07-21 09:14:38,370 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.9401408450704225 [2022-07-21 09:14:38,370 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 267 transitions. [2022-07-21 09:14:38,371 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 267 transitions. [2022-07-21 09:14:38,373 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-21 09:14:38,375 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 267 transitions. [2022-07-21 09:14:38,380 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 133.5) internal successors, (267), 2 states have internal predecessors, (267), 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) [2022-07-21 09:14:38,385 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 142.0) internal successors, (426), 3 states have internal predecessors, (426), 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) [2022-07-21 09:14:38,386 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 142.0) internal successors, (426), 3 states have internal predecessors, (426), 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) [2022-07-21 09:14:38,388 INFO L186 Difference]: Start difference. First operand has 128 places, 128 transitions, 274 flow. Second operand 2 states and 267 transitions. [2022-07-21 09:14:38,388 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 129 places, 122 transitions, 280 flow [2022-07-21 09:14:38,391 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 123 places, 122 transitions, 268 flow, removed 0 selfloop flow, removed 6 redundant places. [2022-07-21 09:14:38,394 INFO L242 Difference]: Finished difference. Result has 123 places, 120 transitions, 246 flow [2022-07-21 09:14:38,395 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=142, PETRI_DIFFERENCE_MINUEND_FLOW=250, PETRI_DIFFERENCE_MINUEND_PLACES=122, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=122, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=122, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=246, PETRI_PLACES=123, PETRI_TRANSITIONS=120} [2022-07-21 09:14:38,400 INFO L279 CegarLoopForPetriNet]: 128 programPoint places, -5 predicate places. [2022-07-21 09:14:38,400 INFO L495 AbstractCegarLoop]: Abstraction has has 123 places, 120 transitions, 246 flow [2022-07-21 09:14:38,400 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 130.0) internal successors, (260), 2 states have internal predecessors, (260), 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) [2022-07-21 09:14:38,401 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-21 09:14:38,401 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] [2022-07-21 09:14:38,401 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-21 09:14:38,401 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)] === [2022-07-21 09:14:38,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 09:14:38,403 INFO L85 PathProgramCache]: Analyzing trace with hash -56616445, now seen corresponding path program 1 times [2022-07-21 09:14:38,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 09:14:38,403 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1409956346] [2022-07-21 09:14:38,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 09:14:38,404 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 09:14:38,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:14:38,579 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 09:14:38,580 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 09:14:38,580 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1409956346] [2022-07-21 09:14:38,581 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1409956346] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 09:14:38,582 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 09:14:38,583 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-21 09:14:38,583 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [968315236] [2022-07-21 09:14:38,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 09:14:38,584 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-21 09:14:38,585 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 09:14:38,586 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-21 09:14:38,586 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-21 09:14:38,588 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 142 [2022-07-21 09:14:38,592 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 123 places, 120 transitions, 246 flow. Second operand has 4 states, 4 states have (on average 120.0) internal successors, (480), 4 states have internal predecessors, (480), 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) [2022-07-21 09:14:38,592 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-21 09:14:38,592 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 142 [2022-07-21 09:14:38,592 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-21 09:14:38,710 INFO L129 PetriNetUnfolder]: 108/431 cut-off events. [2022-07-21 09:14:38,711 INFO L130 PetriNetUnfolder]: For 14/14 co-relation queries the response was YES. [2022-07-21 09:14:38,714 INFO L84 FinitePrefix]: Finished finitePrefix Result has 624 conditions, 431 events. 108/431 cut-off events. For 14/14 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 1903 event pairs, 16 based on Foata normal form. 0/390 useless extension candidates. Maximal degree in co-relation 621. Up to 65 conditions per place. [2022-07-21 09:14:38,716 INFO L132 encePairwiseOnDemand]: 137/142 looper letters, 36 selfloop transitions, 5 changer transitions 0/143 dead transitions. [2022-07-21 09:14:38,716 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 125 places, 143 transitions, 378 flow [2022-07-21 09:14:38,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-21 09:14:38,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-07-21 09:14:38,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 628 transitions. [2022-07-21 09:14:38,718 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.8845070422535212 [2022-07-21 09:14:38,719 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 628 transitions. [2022-07-21 09:14:38,719 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 628 transitions. [2022-07-21 09:14:38,719 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-21 09:14:38,719 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 628 transitions. [2022-07-21 09:14:38,720 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 125.6) internal successors, (628), 5 states have internal predecessors, (628), 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) [2022-07-21 09:14:38,723 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 142.0) internal successors, (852), 6 states have internal predecessors, (852), 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) [2022-07-21 09:14:38,724 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 142.0) internal successors, (852), 6 states have internal predecessors, (852), 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) [2022-07-21 09:14:38,724 INFO L186 Difference]: Start difference. First operand has 123 places, 120 transitions, 246 flow. Second operand 5 states and 628 transitions. [2022-07-21 09:14:38,724 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 125 places, 143 transitions, 378 flow [2022-07-21 09:14:38,726 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 125 places, 143 transitions, 378 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-07-21 09:14:38,728 INFO L242 Difference]: Finished difference. Result has 128 places, 123 transitions, 277 flow [2022-07-21 09:14:38,728 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=142, PETRI_DIFFERENCE_MINUEND_FLOW=246, PETRI_DIFFERENCE_MINUEND_PLACES=121, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=120, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=116, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=277, PETRI_PLACES=128, PETRI_TRANSITIONS=123} [2022-07-21 09:14:38,729 INFO L279 CegarLoopForPetriNet]: 128 programPoint places, 0 predicate places. [2022-07-21 09:14:38,729 INFO L495 AbstractCegarLoop]: Abstraction has has 128 places, 123 transitions, 277 flow [2022-07-21 09:14:38,729 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 120.0) internal successors, (480), 4 states have internal predecessors, (480), 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) [2022-07-21 09:14:38,729 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-21 09:14:38,730 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] [2022-07-21 09:14:38,730 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-21 09:14:38,730 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)] === [2022-07-21 09:14:38,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 09:14:38,731 INFO L85 PathProgramCache]: Analyzing trace with hash 1034643297, now seen corresponding path program 2 times [2022-07-21 09:14:38,731 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 09:14:38,731 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1020555591] [2022-07-21 09:14:38,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 09:14:38,731 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 09:14:38,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:14:38,824 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 09:14:38,825 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 09:14:38,825 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1020555591] [2022-07-21 09:14:38,825 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1020555591] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 09:14:38,825 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 09:14:38,825 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-21 09:14:38,826 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1597167101] [2022-07-21 09:14:38,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 09:14:38,826 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-21 09:14:38,826 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 09:14:38,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-21 09:14:38,827 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-21 09:14:38,827 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 142 [2022-07-21 09:14:38,828 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 128 places, 123 transitions, 277 flow. Second operand has 4 states, 4 states have (on average 120.0) internal successors, (480), 4 states have internal predecessors, (480), 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) [2022-07-21 09:14:38,828 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-21 09:14:38,828 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 142 [2022-07-21 09:14:38,828 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-21 09:14:38,900 INFO L129 PetriNetUnfolder]: 125/419 cut-off events. [2022-07-21 09:14:38,915 INFO L130 PetriNetUnfolder]: For 92/95 co-relation queries the response was YES. [2022-07-21 09:14:38,916 INFO L84 FinitePrefix]: Finished finitePrefix Result has 739 conditions, 419 events. 125/419 cut-off events. For 92/95 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 1763 event pairs, 12 based on Foata normal form. 3/364 useless extension candidates. Maximal degree in co-relation 732. Up to 84 conditions per place. [2022-07-21 09:14:38,918 INFO L132 encePairwiseOnDemand]: 137/142 looper letters, 37 selfloop transitions, 7 changer transitions 0/146 dead transitions. [2022-07-21 09:14:38,918 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 132 places, 146 transitions, 435 flow [2022-07-21 09:14:38,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-21 09:14:38,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-07-21 09:14:38,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 627 transitions. [2022-07-21 09:14:38,920 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.8830985915492958 [2022-07-21 09:14:38,920 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 627 transitions. [2022-07-21 09:14:38,920 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 627 transitions. [2022-07-21 09:14:38,921 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-21 09:14:38,921 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 627 transitions. [2022-07-21 09:14:38,922 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 125.4) internal successors, (627), 5 states have internal predecessors, (627), 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) [2022-07-21 09:14:38,923 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 142.0) internal successors, (852), 6 states have internal predecessors, (852), 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) [2022-07-21 09:14:38,923 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 142.0) internal successors, (852), 6 states have internal predecessors, (852), 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) [2022-07-21 09:14:38,924 INFO L186 Difference]: Start difference. First operand has 128 places, 123 transitions, 277 flow. Second operand 5 states and 627 transitions. [2022-07-21 09:14:38,924 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 132 places, 146 transitions, 435 flow [2022-07-21 09:14:38,925 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 131 places, 146 transitions, 430 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-07-21 09:14:38,932 INFO L242 Difference]: Finished difference. Result has 134 places, 127 transitions, 320 flow [2022-07-21 09:14:38,932 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=142, PETRI_DIFFERENCE_MINUEND_FLOW=274, PETRI_DIFFERENCE_MINUEND_PLACES=127, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=123, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=118, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=320, PETRI_PLACES=134, PETRI_TRANSITIONS=127} [2022-07-21 09:14:38,933 INFO L279 CegarLoopForPetriNet]: 128 programPoint places, 6 predicate places. [2022-07-21 09:14:38,933 INFO L495 AbstractCegarLoop]: Abstraction has has 134 places, 127 transitions, 320 flow [2022-07-21 09:14:38,933 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 120.0) internal successors, (480), 4 states have internal predecessors, (480), 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) [2022-07-21 09:14:38,933 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-21 09:14:38,933 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] [2022-07-21 09:14:38,934 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-21 09:14:38,934 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)] === [2022-07-21 09:14:38,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 09:14:38,934 INFO L85 PathProgramCache]: Analyzing trace with hash -707530407, now seen corresponding path program 3 times [2022-07-21 09:14:38,934 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 09:14:38,935 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1999410736] [2022-07-21 09:14:38,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 09:14:38,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 09:14:38,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:14:39,014 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 09:14:39,015 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 09:14:39,015 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1999410736] [2022-07-21 09:14:39,015 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1999410736] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 09:14:39,015 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 09:14:39,015 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-21 09:14:39,015 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [560519034] [2022-07-21 09:14:39,016 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 09:14:39,016 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 09:14:39,016 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 09:14:39,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 09:14:39,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-21 09:14:39,017 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 142 [2022-07-21 09:14:39,018 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 134 places, 127 transitions, 320 flow. Second operand has 5 states, 5 states have (on average 118.6) internal successors, (593), 5 states have internal predecessors, (593), 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) [2022-07-21 09:14:39,018 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-21 09:14:39,018 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 142 [2022-07-21 09:14:39,018 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-21 09:14:39,194 INFO L129 PetriNetUnfolder]: 200/770 cut-off events. [2022-07-21 09:14:39,194 INFO L130 PetriNetUnfolder]: For 274/282 co-relation queries the response was YES. [2022-07-21 09:14:39,196 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1377 conditions, 770 events. 200/770 cut-off events. For 274/282 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 4673 event pairs, 30 based on Foata normal form. 12/711 useless extension candidates. Maximal degree in co-relation 1367. Up to 116 conditions per place. [2022-07-21 09:14:39,199 INFO L132 encePairwiseOnDemand]: 135/142 looper letters, 41 selfloop transitions, 9 changer transitions 16/167 dead transitions. [2022-07-21 09:14:39,199 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 141 places, 167 transitions, 592 flow [2022-07-21 09:14:39,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-21 09:14:39,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-07-21 09:14:39,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 984 transitions. [2022-07-21 09:14:39,201 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.8661971830985915 [2022-07-21 09:14:39,202 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 984 transitions. [2022-07-21 09:14:39,204 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 984 transitions. [2022-07-21 09:14:39,205 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-21 09:14:39,205 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 984 transitions. [2022-07-21 09:14:39,207 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 123.0) internal successors, (984), 8 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) [2022-07-21 09:14:39,208 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 142.0) internal successors, (1278), 9 states have internal predecessors, (1278), 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) [2022-07-21 09:14:39,209 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 142.0) internal successors, (1278), 9 states have internal predecessors, (1278), 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) [2022-07-21 09:14:39,209 INFO L186 Difference]: Start difference. First operand has 134 places, 127 transitions, 320 flow. Second operand 8 states and 984 transitions. [2022-07-21 09:14:39,209 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 141 places, 167 transitions, 592 flow [2022-07-21 09:14:39,212 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 140 places, 167 transitions, 585 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-07-21 09:14:39,214 INFO L242 Difference]: Finished difference. Result has 144 places, 127 transitions, 349 flow [2022-07-21 09:14:39,216 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=142, PETRI_DIFFERENCE_MINUEND_FLOW=316, PETRI_DIFFERENCE_MINUEND_PLACES=133, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=127, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=120, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=349, PETRI_PLACES=144, PETRI_TRANSITIONS=127} [2022-07-21 09:14:39,217 INFO L279 CegarLoopForPetriNet]: 128 programPoint places, 16 predicate places. [2022-07-21 09:14:39,217 INFO L495 AbstractCegarLoop]: Abstraction has has 144 places, 127 transitions, 349 flow [2022-07-21 09:14:39,218 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 118.6) internal successors, (593), 5 states have internal predecessors, (593), 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) [2022-07-21 09:14:39,218 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-21 09:14:39,218 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] [2022-07-21 09:14:39,218 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-21 09:14:39,218 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)] === [2022-07-21 09:14:39,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 09:14:39,219 INFO L85 PathProgramCache]: Analyzing trace with hash 1421287066, now seen corresponding path program 1 times [2022-07-21 09:14:39,219 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 09:14:39,220 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [483891612] [2022-07-21 09:14:39,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 09:14:39,220 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 09:14:39,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:14:39,342 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 09:14:39,342 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 09:14:39,342 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [483891612] [2022-07-21 09:14:39,343 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [483891612] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 09:14:39,343 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 09:14:39,343 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 09:14:39,343 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1388436641] [2022-07-21 09:14:39,343 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 09:14:39,344 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 09:14:39,344 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 09:14:39,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 09:14:39,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 09:14:39,345 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 142 [2022-07-21 09:14:39,345 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 144 places, 127 transitions, 349 flow. Second operand has 3 states, 3 states have (on average 122.66666666666667) internal successors, (368), 3 states have internal predecessors, (368), 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) [2022-07-21 09:14:39,345 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-21 09:14:39,345 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 142 [2022-07-21 09:14:39,346 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-21 09:14:39,396 INFO L129 PetriNetUnfolder]: 51/306 cut-off events. [2022-07-21 09:14:39,396 INFO L130 PetriNetUnfolder]: For 174/175 co-relation queries the response was YES. [2022-07-21 09:14:39,397 INFO L84 FinitePrefix]: Finished finitePrefix Result has 540 conditions, 306 events. 51/306 cut-off events. For 174/175 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 946 event pairs, 10 based on Foata normal form. 8/288 useless extension candidates. Maximal degree in co-relation 526. Up to 72 conditions per place. [2022-07-21 09:14:39,398 INFO L132 encePairwiseOnDemand]: 136/142 looper letters, 17 selfloop transitions, 5 changer transitions 0/127 dead transitions. [2022-07-21 09:14:39,398 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 145 places, 127 transitions, 367 flow [2022-07-21 09:14:39,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 09:14:39,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-07-21 09:14:39,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 376 transitions. [2022-07-21 09:14:39,399 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.8826291079812206 [2022-07-21 09:14:39,399 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 376 transitions. [2022-07-21 09:14:39,400 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 376 transitions. [2022-07-21 09:14:39,400 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-21 09:14:39,400 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 376 transitions. [2022-07-21 09:14:39,401 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 125.33333333333333) internal successors, (376), 3 states have internal predecessors, (376), 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) [2022-07-21 09:14:39,402 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 142.0) internal successors, (568), 4 states have internal predecessors, (568), 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) [2022-07-21 09:14:39,402 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 142.0) internal successors, (568), 4 states have internal predecessors, (568), 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) [2022-07-21 09:14:39,402 INFO L186 Difference]: Start difference. First operand has 144 places, 127 transitions, 349 flow. Second operand 3 states and 376 transitions. [2022-07-21 09:14:39,402 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 145 places, 127 transitions, 367 flow [2022-07-21 09:14:39,404 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 134 places, 127 transitions, 343 flow, removed 1 selfloop flow, removed 11 redundant places. [2022-07-21 09:14:39,405 INFO L242 Difference]: Finished difference. Result has 135 places, 125 transitions, 315 flow [2022-07-21 09:14:39,405 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=142, PETRI_DIFFERENCE_MINUEND_FLOW=290, PETRI_DIFFERENCE_MINUEND_PLACES=132, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=123, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=118, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=315, PETRI_PLACES=135, PETRI_TRANSITIONS=125} [2022-07-21 09:14:39,406 INFO L279 CegarLoopForPetriNet]: 128 programPoint places, 7 predicate places. [2022-07-21 09:14:39,406 INFO L495 AbstractCegarLoop]: Abstraction has has 135 places, 125 transitions, 315 flow [2022-07-21 09:14:39,406 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 122.66666666666667) internal successors, (368), 3 states have internal predecessors, (368), 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) [2022-07-21 09:14:39,406 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-21 09:14:39,407 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] [2022-07-21 09:14:39,407 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-21 09:14:39,407 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)] === [2022-07-21 09:14:39,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 09:14:39,407 INFO L85 PathProgramCache]: Analyzing trace with hash 234318788, now seen corresponding path program 1 times [2022-07-21 09:14:39,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 09:14:39,408 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1507283708] [2022-07-21 09:14:39,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 09:14:39,408 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 09:14:39,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:14:39,451 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-07-21 09:14:39,452 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 09:14:39,452 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1507283708] [2022-07-21 09:14:39,452 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1507283708] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 09:14:39,452 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 09:14:39,452 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 09:14:39,452 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1654345674] [2022-07-21 09:14:39,452 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 09:14:39,453 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 09:14:39,453 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 09:14:39,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 09:14:39,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 09:14:39,454 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 122 out of 142 [2022-07-21 09:14:39,454 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 135 places, 125 transitions, 315 flow. Second operand has 3 states, 3 states have (on average 125.66666666666667) internal successors, (377), 3 states have internal predecessors, (377), 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) [2022-07-21 09:14:39,454 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-21 09:14:39,455 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 122 of 142 [2022-07-21 09:14:39,455 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-21 09:14:39,499 INFO L129 PetriNetUnfolder]: 93/395 cut-off events. [2022-07-21 09:14:39,500 INFO L130 PetriNetUnfolder]: For 176/176 co-relation queries the response was YES. [2022-07-21 09:14:39,501 INFO L84 FinitePrefix]: Finished finitePrefix Result has 760 conditions, 395 events. 93/395 cut-off events. For 176/176 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 1494 event pairs, 23 based on Foata normal form. 0/363 useless extension candidates. Maximal degree in co-relation 748. Up to 129 conditions per place. [2022-07-21 09:14:39,502 INFO L132 encePairwiseOnDemand]: 139/142 looper letters, 19 selfloop transitions, 2 changer transitions 0/130 dead transitions. [2022-07-21 09:14:39,502 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 137 places, 130 transitions, 375 flow [2022-07-21 09:14:39,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 09:14:39,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-07-21 09:14:39,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 386 transitions. [2022-07-21 09:14:39,509 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.9061032863849765 [2022-07-21 09:14:39,509 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 386 transitions. [2022-07-21 09:14:39,509 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 386 transitions. [2022-07-21 09:14:39,509 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-21 09:14:39,509 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 386 transitions. [2022-07-21 09:14:39,510 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 128.66666666666666) internal successors, (386), 3 states have internal predecessors, (386), 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) [2022-07-21 09:14:39,511 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 142.0) internal successors, (568), 4 states have internal predecessors, (568), 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) [2022-07-21 09:14:39,511 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 142.0) internal successors, (568), 4 states have internal predecessors, (568), 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) [2022-07-21 09:14:39,511 INFO L186 Difference]: Start difference. First operand has 135 places, 125 transitions, 315 flow. Second operand 3 states and 386 transitions. [2022-07-21 09:14:39,511 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 137 places, 130 transitions, 375 flow [2022-07-21 09:14:39,513 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 136 places, 130 transitions, 371 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-07-21 09:14:39,514 INFO L242 Difference]: Finished difference. Result has 137 places, 125 transitions, 318 flow [2022-07-21 09:14:39,514 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=142, PETRI_DIFFERENCE_MINUEND_FLOW=306, PETRI_DIFFERENCE_MINUEND_PLACES=134, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=124, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=122, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=318, PETRI_PLACES=137, PETRI_TRANSITIONS=125} [2022-07-21 09:14:39,515 INFO L279 CegarLoopForPetriNet]: 128 programPoint places, 9 predicate places. [2022-07-21 09:14:39,515 INFO L495 AbstractCegarLoop]: Abstraction has has 137 places, 125 transitions, 318 flow [2022-07-21 09:14:39,515 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 125.66666666666667) internal successors, (377), 3 states have internal predecessors, (377), 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) [2022-07-21 09:14:39,515 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-21 09:14:39,515 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] [2022-07-21 09:14:39,516 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-21 09:14:39,516 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)] === [2022-07-21 09:14:39,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 09:14:39,516 INFO L85 PathProgramCache]: Analyzing trace with hash 773977342, now seen corresponding path program 1 times [2022-07-21 09:14:39,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 09:14:39,517 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [75098603] [2022-07-21 09:14:39,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 09:14:39,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 09:14:39,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:14:39,610 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-07-21 09:14:39,610 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 09:14:39,610 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [75098603] [2022-07-21 09:14:39,611 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [75098603] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 09:14:39,611 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 09:14:39,611 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-21 09:14:39,613 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1628430345] [2022-07-21 09:14:39,616 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 09:14:39,617 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-21 09:14:39,617 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 09:14:39,617 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-21 09:14:39,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-07-21 09:14:39,618 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 105 out of 142 [2022-07-21 09:14:39,620 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 137 places, 125 transitions, 318 flow. Second operand has 8 states, 8 states have (on average 108.0) internal successors, (864), 8 states have internal predecessors, (864), 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) [2022-07-21 09:14:39,621 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-21 09:14:39,621 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 105 of 142 [2022-07-21 09:14:39,621 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-21 09:14:39,796 INFO L129 PetriNetUnfolder]: 118/547 cut-off events. [2022-07-21 09:14:39,796 INFO L130 PetriNetUnfolder]: For 266/268 co-relation queries the response was YES. [2022-07-21 09:14:39,797 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1127 conditions, 547 events. 118/547 cut-off events. For 266/268 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 2628 event pairs, 56 based on Foata normal form. 2/530 useless extension candidates. Maximal degree in co-relation 1114. Up to 194 conditions per place. [2022-07-21 09:14:39,799 INFO L132 encePairwiseOnDemand]: 132/142 looper letters, 30 selfloop transitions, 6 changer transitions 10/139 dead transitions. [2022-07-21 09:14:39,799 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 145 places, 139 transitions, 443 flow [2022-07-21 09:14:39,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-21 09:14:39,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-07-21 09:14:39,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 990 transitions. [2022-07-21 09:14:39,802 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.7746478873239436 [2022-07-21 09:14:39,802 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 990 transitions. [2022-07-21 09:14:39,803 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 990 transitions. [2022-07-21 09:14:39,803 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-21 09:14:39,803 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 990 transitions. [2022-07-21 09:14:39,805 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 110.0) internal successors, (990), 9 states have internal predecessors, (990), 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) [2022-07-21 09:14:39,807 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 142.0) internal successors, (1420), 10 states have internal predecessors, (1420), 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) [2022-07-21 09:14:39,807 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 142.0) internal successors, (1420), 10 states have internal predecessors, (1420), 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) [2022-07-21 09:14:39,807 INFO L186 Difference]: Start difference. First operand has 137 places, 125 transitions, 318 flow. Second operand 9 states and 990 transitions. [2022-07-21 09:14:39,807 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 145 places, 139 transitions, 443 flow [2022-07-21 09:14:39,809 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 144 places, 139 transitions, 441 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-07-21 09:14:39,811 INFO L242 Difference]: Finished difference. Result has 148 places, 126 transitions, 342 flow [2022-07-21 09:14:39,811 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=142, PETRI_DIFFERENCE_MINUEND_FLOW=316, PETRI_DIFFERENCE_MINUEND_PLACES=136, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=125, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=119, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=342, PETRI_PLACES=148, PETRI_TRANSITIONS=126} [2022-07-21 09:14:39,812 INFO L279 CegarLoopForPetriNet]: 128 programPoint places, 20 predicate places. [2022-07-21 09:14:39,812 INFO L495 AbstractCegarLoop]: Abstraction has has 148 places, 126 transitions, 342 flow [2022-07-21 09:14:39,813 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 108.0) internal successors, (864), 8 states have internal predecessors, (864), 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) [2022-07-21 09:14:39,813 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-21 09:14:39,813 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] [2022-07-21 09:14:39,813 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-21 09:14:39,814 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)] === [2022-07-21 09:14:39,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 09:14:39,814 INFO L85 PathProgramCache]: Analyzing trace with hash 1356837807, now seen corresponding path program 1 times [2022-07-21 09:14:39,814 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 09:14:39,815 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1607422220] [2022-07-21 09:14:39,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 09:14:39,815 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 09:14:39,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:14:40,550 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 09:14:40,551 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 09:14:40,551 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1607422220] [2022-07-21 09:14:40,551 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1607422220] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-21 09:14:40,551 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2074431274] [2022-07-21 09:14:40,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 09:14:40,552 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 09:14:40,552 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 09:14:40,553 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) [2022-07-21 09:14:40,570 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-21 09:14:40,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:14:40,641 INFO L263 TraceCheckSpWp]: Trace formula consists of 296 conjuncts, 60 conjunts are in the unsatisfiable core [2022-07-21 09:14:40,656 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 09:14:40,729 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-07-21 09:14:40,764 INFO L356 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-07-21 09:14:40,765 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 18 [2022-07-21 09:14:40,803 INFO L356 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-07-21 09:14:40,804 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 22 [2022-07-21 09:14:41,206 INFO L356 Elim1Store]: treesize reduction 8, result has 68.0 percent of original size [2022-07-21 09:14:41,207 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 20 treesize of output 30 [2022-07-21 09:14:41,359 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-07-21 09:14:41,692 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 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 [2022-07-21 09:14:41,763 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 [2022-07-21 09:14:41,827 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 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 [2022-07-21 09:14:42,028 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 23 treesize of output 7 [2022-07-21 09:14:42,103 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 09:14:42,104 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-21 09:14:43,488 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 09:14:43,488 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 103 treesize of output 79 [2022-07-21 09:14:43,514 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 09:14:43,515 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 3988 treesize of output 3812 [2022-07-21 09:14:43,546 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 09:14:43,547 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 3796 treesize of output 3236 [2022-07-21 09:14:43,574 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 09:14:43,575 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 3220 treesize of output 3092 [2022-07-21 09:14:43,601 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 09:14:43,602 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 3076 treesize of output 2804 [2022-07-21 09:14:43,620 WARN L319 FreeRefinementEngine]: Global settings require throwing the following exception [2022-07-21 09:14:43,640 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-07-21 09:14:43,834 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 09:14:43,835 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.ArithmeticException: BigInteger out of long range at java.base/java.math.BigInteger.longValueExact(BigInteger.java:4765) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.computeDerApplicabilityScore(QuantifierPusher.java:545) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.selectBestEliminatee(QuantifierPusher.java:528) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushUtilsForSubsetPush.sequentialSubsetPush(QuantifierPushUtilsForSubsetPush.java:139) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToPushOverDualFiniteConnective(QuantifierPusher.java:348) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:176) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:1) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine$ApplicationTermTask.doStep(TermContextTransformationEngine.java:169) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:77) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:61) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:265) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:251) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.PartialQuantifierElimination.eliminate(PartialQuantifierElimination.java:90) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer$QuantifierEliminationPostprocessor.postprocess(IterativePredicateTransformer.java:238) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:420) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeBackwardSequence(IterativePredicateTransformer.java:399) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeWeakestPreconditionSequence(IterativePredicateTransformer.java:271) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:342) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:185) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:163) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:266) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:147) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:248) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:366) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:409) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:300) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:223) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:171) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:152) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-07-21 09:14:43,837 INFO L158 Benchmark]: Toolchain (without parser) took 6846.64ms. Allocated memory was 62.9MB in the beginning and 163.6MB in the end (delta: 100.7MB). Free memory was 43.4MB in the beginning and 61.6MB in the end (delta: -18.2MB). Peak memory consumption was 81.6MB. Max. memory is 16.1GB. [2022-07-21 09:14:43,837 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 62.9MB. Free memory was 44.8MB in the beginning and 44.7MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-21 09:14:43,837 INFO L158 Benchmark]: CACSL2BoogieTranslator took 212.81ms. Allocated memory is still 62.9MB. Free memory was 43.2MB in the beginning and 46.1MB in the end (delta: -2.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-07-21 09:14:43,837 INFO L158 Benchmark]: Boogie Procedure Inliner took 41.80ms. Allocated memory is still 62.9MB. Free memory was 46.1MB in the beginning and 44.0MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-21 09:14:43,838 INFO L158 Benchmark]: Boogie Preprocessor took 41.59ms. Allocated memory is still 62.9MB. Free memory was 44.0MB in the beginning and 42.6MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-21 09:14:43,838 INFO L158 Benchmark]: RCFGBuilder took 511.02ms. Allocated memory was 62.9MB in the beginning and 77.6MB in the end (delta: 14.7MB). Free memory was 42.3MB in the beginning and 55.4MB in the end (delta: -13.1MB). Peak memory consumption was 18.6MB. Max. memory is 16.1GB. [2022-07-21 09:14:43,838 INFO L158 Benchmark]: TraceAbstraction took 6035.05ms. Allocated memory was 77.6MB in the beginning and 163.6MB in the end (delta: 86.0MB). Free memory was 55.1MB in the beginning and 61.6MB in the end (delta: -6.5MB). Peak memory consumption was 78.6MB. Max. memory is 16.1GB. [2022-07-21 09:14:43,839 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 62.9MB. Free memory was 44.8MB in the beginning and 44.7MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 212.81ms. Allocated memory is still 62.9MB. Free memory was 43.2MB in the beginning and 46.1MB in the end (delta: -2.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 41.80ms. Allocated memory is still 62.9MB. Free memory was 46.1MB in the beginning and 44.0MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 41.59ms. Allocated memory is still 62.9MB. Free memory was 44.0MB in the beginning and 42.6MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 511.02ms. Allocated memory was 62.9MB in the beginning and 77.6MB in the end (delta: 14.7MB). Free memory was 42.3MB in the beginning and 55.4MB in the end (delta: -13.1MB). Peak memory consumption was 18.6MB. Max. memory is 16.1GB. * TraceAbstraction took 6035.05ms. Allocated memory was 77.6MB in the beginning and 163.6MB in the end (delta: 86.0MB). Free memory was 55.1MB in the beginning and 61.6MB in the end (delta: -6.5MB). Peak memory consumption was 78.6MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: ArithmeticException: BigInteger out of long range de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: ArithmeticException: BigInteger out of long range: java.base/java.math.BigInteger.longValueExact(BigInteger.java:4765) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2022-07-21 09:14:43,864 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### 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-send-receive.wvr.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.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 238e609d3671ff2de494998b0abc6a14651375b5eb423e7b66fc3d987b466268 --- Real Ultimate output --- This is Ultimate 0.2.2-?-3598765 [2022-07-21 09:14:45,676 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-21 09:14:45,677 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-21 09:14:45,697 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-21 09:14:45,698 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-21 09:14:45,699 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-21 09:14:45,700 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-21 09:14:45,701 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-21 09:14:45,702 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-21 09:14:45,703 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-21 09:14:45,704 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-21 09:14:45,707 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-21 09:14:45,707 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-21 09:14:45,711 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-21 09:14:45,712 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-21 09:14:45,715 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-21 09:14:45,715 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-21 09:14:45,717 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-21 09:14:45,718 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-21 09:14:45,721 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-21 09:14:45,724 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-21 09:14:45,724 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-21 09:14:45,725 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-21 09:14:45,727 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-21 09:14:45,728 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-21 09:14:45,732 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-21 09:14:45,734 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-21 09:14:45,734 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-21 09:14:45,735 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-21 09:14:45,736 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-21 09:14:45,736 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-21 09:14:45,737 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-21 09:14:45,737 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-21 09:14:45,738 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-21 09:14:45,739 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-21 09:14:45,740 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-21 09:14:45,740 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-21 09:14:45,741 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-21 09:14:45,741 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-21 09:14:45,741 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-21 09:14:45,742 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-21 09:14:45,743 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-21 09:14:45,747 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2022-07-21 09:14:45,777 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-21 09:14:45,778 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-21 09:14:45,778 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-21 09:14:45,778 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-21 09:14:45,779 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-21 09:14:45,779 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-21 09:14:45,780 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-21 09:14:45,780 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-21 09:14:45,780 INFO L138 SettingsManager]: * Use SBE=true [2022-07-21 09:14:45,781 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-21 09:14:45,781 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-21 09:14:45,781 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-21 09:14:45,781 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-21 09:14:45,781 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-21 09:14:45,781 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-21 09:14:45,782 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-21 09:14:45,782 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-21 09:14:45,782 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-07-21 09:14:45,782 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-07-21 09:14:45,782 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-21 09:14:45,783 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-21 09:14:45,783 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-21 09:14:45,783 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-21 09:14:45,783 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-21 09:14:45,783 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-21 09:14:45,783 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-21 09:14:45,784 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 09:14:45,784 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-21 09:14:45,784 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-21 09:14:45,784 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-21 09:14:45,784 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-07-21 09:14:45,784 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-07-21 09:14:45,785 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-21 09:14:45,785 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-21 09:14:45,785 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-21 09:14:45,785 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-07-21 09:14:45,785 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 238e609d3671ff2de494998b0abc6a14651375b5eb423e7b66fc3d987b466268 [2022-07-21 09:14:46,058 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-21 09:14:46,078 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-21 09:14:46,080 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-21 09:14:46,081 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-21 09:14:46,081 INFO L275 PluginConnector]: CDTParser initialized [2022-07-21 09:14:46,083 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/popl20-send-receive.wvr.c [2022-07-21 09:14:46,140 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/355654103/670b8eb7163f4be59480d59dfc8507bf/FLAGa4dc18e98 [2022-07-21 09:14:46,491 INFO L306 CDTParser]: Found 1 translation units. [2022-07-21 09:14:46,492 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/popl20-send-receive.wvr.c [2022-07-21 09:14:46,497 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/355654103/670b8eb7163f4be59480d59dfc8507bf/FLAGa4dc18e98 [2022-07-21 09:14:46,911 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/355654103/670b8eb7163f4be59480d59dfc8507bf [2022-07-21 09:14:46,913 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-21 09:14:46,914 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-21 09:14:46,916 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-21 09:14:46,916 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-21 09:14:46,919 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-21 09:14:46,920 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 09:14:46" (1/1) ... [2022-07-21 09:14:46,921 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7934a9ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 09:14:46, skipping insertion in model container [2022-07-21 09:14:46,921 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 09:14:46" (1/1) ... [2022-07-21 09:14:46,926 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-21 09:14:46,943 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-21 09:14:47,074 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-send-receive.wvr.c[3107,3120] [2022-07-21 09:14:47,096 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 09:14:47,114 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-07-21 09:14:47,129 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-21 09:14:47,138 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-send-receive.wvr.c[3107,3120] [2022-07-21 09:14:47,140 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 09:14:47,150 INFO L203 MainTranslator]: Completed pre-run [2022-07-21 09:14:47,167 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-send-receive.wvr.c[3107,3120] [2022-07-21 09:14:47,170 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 09:14:47,180 INFO L208 MainTranslator]: Completed translation [2022-07-21 09:14:47,180 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 09:14:47 WrapperNode [2022-07-21 09:14:47,180 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-21 09:14:47,181 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-21 09:14:47,181 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-21 09:14:47,181 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-21 09:14:47,186 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 09:14:47" (1/1) ... [2022-07-21 09:14:47,193 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 09:14:47" (1/1) ... [2022-07-21 09:14:47,209 INFO L137 Inliner]: procedures = 27, calls = 52, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 158 [2022-07-21 09:14:47,210 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-21 09:14:47,210 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-21 09:14:47,211 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-21 09:14:47,211 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-21 09:14:47,216 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 09:14:47" (1/1) ... [2022-07-21 09:14:47,217 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 09:14:47" (1/1) ... [2022-07-21 09:14:47,220 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 09:14:47" (1/1) ... [2022-07-21 09:14:47,221 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 09:14:47" (1/1) ... [2022-07-21 09:14:47,234 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 09:14:47" (1/1) ... [2022-07-21 09:14:47,237 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 09:14:47" (1/1) ... [2022-07-21 09:14:47,239 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 09:14:47" (1/1) ... [2022-07-21 09:14:47,241 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-21 09:14:47,241 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-21 09:14:47,241 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-21 09:14:47,242 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-21 09:14:47,242 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 09:14:47" (1/1) ... [2022-07-21 09:14:47,247 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 09:14:47,256 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 09:14:47,277 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) [2022-07-21 09:14:47,282 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 [2022-07-21 09:14:47,304 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-21 09:14:47,305 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-07-21 09:14:47,305 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-21 09:14:47,305 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-07-21 09:14:47,305 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-07-21 09:14:47,305 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-07-21 09:14:47,305 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-07-21 09:14:47,305 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-07-21 09:14:47,306 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-07-21 09:14:47,306 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-07-21 09:14:47,306 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-07-21 09:14:47,306 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-07-21 09:14:47,306 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-21 09:14:47,306 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-21 09:14:47,306 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-21 09:14:47,306 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-21 09:14:47,307 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-07-21 09:14:47,308 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-07-21 09:14:47,364 INFO L234 CfgBuilder]: Building ICFG [2022-07-21 09:14:47,365 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-21 09:14:47,656 INFO L275 CfgBuilder]: Performing block encoding [2022-07-21 09:14:47,749 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-21 09:14:47,750 INFO L299 CfgBuilder]: Removed 3 assume(true) statements. [2022-07-21 09:14:47,760 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 09:14:47 BoogieIcfgContainer [2022-07-21 09:14:47,760 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-21 09:14:47,761 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-21 09:14:47,761 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-21 09:14:47,763 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-21 09:14:47,764 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 09:14:46" (1/3) ... [2022-07-21 09:14:47,764 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e94dd5a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 09:14:47, skipping insertion in model container [2022-07-21 09:14:47,764 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 09:14:47" (2/3) ... [2022-07-21 09:14:47,764 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e94dd5a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 09:14:47, skipping insertion in model container [2022-07-21 09:14:47,765 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 09:14:47" (3/3) ... [2022-07-21 09:14:47,766 INFO L111 eAbstractionObserver]: Analyzing ICFG popl20-send-receive.wvr.c [2022-07-21 09:14:47,769 WARN L143 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-07-21 09:14:47,776 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-21 09:14:47,776 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-21 09:14:47,777 INFO L509 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-07-21 09:14:47,826 INFO L135 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-07-21 09:14:47,855 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 139 places, 139 transitions, 302 flow [2022-07-21 09:14:47,924 INFO L129 PetriNetUnfolder]: 10/136 cut-off events. [2022-07-21 09:14:47,925 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-07-21 09:14:47,928 INFO L84 FinitePrefix]: Finished finitePrefix Result has 149 conditions, 136 events. 10/136 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 91 event pairs, 0 based on Foata normal form. 0/125 useless extension candidates. Maximal degree in co-relation 113. Up to 2 conditions per place. [2022-07-21 09:14:47,928 INFO L82 GeneralOperation]: Start removeDead. Operand has 139 places, 139 transitions, 302 flow [2022-07-21 09:14:47,932 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 125 places, 125 transitions, 268 flow [2022-07-21 09:14:47,941 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-21 09:14:47,946 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@4c2f4194, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@1205587f [2022-07-21 09:14:47,946 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-07-21 09:14:47,962 INFO L129 PetriNetUnfolder]: 10/124 cut-off events. [2022-07-21 09:14:47,962 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-07-21 09:14:47,963 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-21 09:14:47,963 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] [2022-07-21 09:14:47,964 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)] === [2022-07-21 09:14:47,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 09:14:47,967 INFO L85 PathProgramCache]: Analyzing trace with hash -1656166761, now seen corresponding path program 1 times [2022-07-21 09:14:47,975 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 09:14:47,976 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1533992247] [2022-07-21 09:14:47,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 09:14:47,977 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 09:14:47,977 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 09:14:47,979 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-21 09:14:47,985 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-07-21 09:14:48,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:14:48,144 INFO L263 TraceCheckSpWp]: Trace formula consists of 162 conjuncts, 1 conjunts are in the unsatisfiable core [2022-07-21 09:14:48,151 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 09:14:48,187 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 09:14:48,187 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 09:14:48,188 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 09:14:48,188 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1533992247] [2022-07-21 09:14:48,189 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1533992247] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 09:14:48,189 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 09:14:48,189 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-21 09:14:48,191 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1802354455] [2022-07-21 09:14:48,191 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 09:14:48,197 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-21 09:14:48,197 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 09:14:48,224 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-21 09:14:48,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-21 09:14:48,227 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 139 [2022-07-21 09:14:48,233 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 125 places, 125 transitions, 268 flow. Second operand has 2 states, 2 states have (on average 127.0) internal successors, (254), 2 states have internal predecessors, (254), 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) [2022-07-21 09:14:48,233 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-21 09:14:48,234 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 139 [2022-07-21 09:14:48,234 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-21 09:14:48,319 INFO L129 PetriNetUnfolder]: 21/171 cut-off events. [2022-07-21 09:14:48,320 INFO L130 PetriNetUnfolder]: For 26/27 co-relation queries the response was YES. [2022-07-21 09:14:48,321 INFO L84 FinitePrefix]: Finished finitePrefix Result has 228 conditions, 171 events. 21/171 cut-off events. For 26/27 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 300 event pairs, 7 based on Foata normal form. 20/173 useless extension candidates. Maximal degree in co-relation 138. Up to 33 conditions per place. [2022-07-21 09:14:48,322 INFO L132 encePairwiseOnDemand]: 133/139 looper letters, 9 selfloop transitions, 0 changer transitions 2/119 dead transitions. [2022-07-21 09:14:48,322 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 126 places, 119 transitions, 274 flow [2022-07-21 09:14:48,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-21 09:14:48,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-07-21 09:14:48,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 261 transitions. [2022-07-21 09:14:48,336 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.9388489208633094 [2022-07-21 09:14:48,337 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 261 transitions. [2022-07-21 09:14:48,337 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 261 transitions. [2022-07-21 09:14:48,338 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-21 09:14:48,340 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 261 transitions. [2022-07-21 09:14:48,344 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 130.5) internal successors, (261), 2 states have internal predecessors, (261), 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) [2022-07-21 09:14:48,346 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 139.0) internal successors, (417), 3 states have internal predecessors, (417), 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) [2022-07-21 09:14:48,351 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 139.0) internal successors, (417), 3 states have internal predecessors, (417), 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) [2022-07-21 09:14:48,352 INFO L186 Difference]: Start difference. First operand has 125 places, 125 transitions, 268 flow. Second operand 2 states and 261 transitions. [2022-07-21 09:14:48,353 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 126 places, 119 transitions, 274 flow [2022-07-21 09:14:48,355 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 120 places, 119 transitions, 262 flow, removed 0 selfloop flow, removed 6 redundant places. [2022-07-21 09:14:48,361 INFO L242 Difference]: Finished difference. Result has 120 places, 117 transitions, 240 flow [2022-07-21 09:14:48,363 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=139, PETRI_DIFFERENCE_MINUEND_FLOW=244, PETRI_DIFFERENCE_MINUEND_PLACES=119, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=119, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=119, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=240, PETRI_PLACES=120, PETRI_TRANSITIONS=117} [2022-07-21 09:14:48,365 INFO L279 CegarLoopForPetriNet]: 125 programPoint places, -5 predicate places. [2022-07-21 09:14:48,365 INFO L495 AbstractCegarLoop]: Abstraction has has 120 places, 117 transitions, 240 flow [2022-07-21 09:14:48,366 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 127.0) internal successors, (254), 2 states have internal predecessors, (254), 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) [2022-07-21 09:14:48,366 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-21 09:14:48,366 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] [2022-07-21 09:14:48,387 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2022-07-21 09:14:48,574 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 09:14:48,575 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)] === [2022-07-21 09:14:48,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 09:14:48,577 INFO L85 PathProgramCache]: Analyzing trace with hash -749841709, now seen corresponding path program 1 times [2022-07-21 09:14:48,578 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 09:14:48,579 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1189805137] [2022-07-21 09:14:48,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 09:14:48,579 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 09:14:48,583 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 09:14:48,598 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-21 09:14:48,599 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-07-21 09:14:48,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:14:48,702 INFO L263 TraceCheckSpWp]: Trace formula consists of 162 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-21 09:14:48,705 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 09:14:48,789 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 09:14:48,789 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 09:14:48,789 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 09:14:48,789 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1189805137] [2022-07-21 09:14:48,790 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1189805137] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 09:14:48,790 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 09:14:48,790 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-21 09:14:48,790 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1345390487] [2022-07-21 09:14:48,790 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 09:14:48,791 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-21 09:14:48,791 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 09:14:48,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-21 09:14:48,793 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-21 09:14:48,795 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 114 out of 139 [2022-07-21 09:14:48,796 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 120 places, 117 transitions, 240 flow. Second operand has 4 states, 4 states have (on average 117.0) internal successors, (468), 4 states have internal predecessors, (468), 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) [2022-07-21 09:14:48,796 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-21 09:14:48,797 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 114 of 139 [2022-07-21 09:14:48,797 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-21 09:14:48,946 INFO L129 PetriNetUnfolder]: 98/364 cut-off events. [2022-07-21 09:14:48,946 INFO L130 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2022-07-21 09:14:48,948 INFO L84 FinitePrefix]: Finished finitePrefix Result has 540 conditions, 364 events. 98/364 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 1430 event pairs, 20 based on Foata normal form. 0/320 useless extension candidates. Maximal degree in co-relation 537. Up to 64 conditions per place. [2022-07-21 09:14:48,951 INFO L132 encePairwiseOnDemand]: 134/139 looper letters, 35 selfloop transitions, 5 changer transitions 0/139 dead transitions. [2022-07-21 09:14:48,951 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 122 places, 139 transitions, 366 flow [2022-07-21 09:14:48,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-21 09:14:48,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-07-21 09:14:48,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 612 transitions. [2022-07-21 09:14:48,955 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.8805755395683453 [2022-07-21 09:14:48,955 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 612 transitions. [2022-07-21 09:14:48,955 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 612 transitions. [2022-07-21 09:14:48,956 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-21 09:14:48,956 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 612 transitions. [2022-07-21 09:14:48,958 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 122.4) internal successors, (612), 5 states have internal predecessors, (612), 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) [2022-07-21 09:14:48,961 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 139.0) internal successors, (834), 6 states have internal predecessors, (834), 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) [2022-07-21 09:14:48,961 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 139.0) internal successors, (834), 6 states have internal predecessors, (834), 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) [2022-07-21 09:14:48,961 INFO L186 Difference]: Start difference. First operand has 120 places, 117 transitions, 240 flow. Second operand 5 states and 612 transitions. [2022-07-21 09:14:48,961 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 122 places, 139 transitions, 366 flow [2022-07-21 09:14:48,963 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 122 places, 139 transitions, 366 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-07-21 09:14:48,966 INFO L242 Difference]: Finished difference. Result has 125 places, 120 transitions, 271 flow [2022-07-21 09:14:48,966 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=139, PETRI_DIFFERENCE_MINUEND_FLOW=240, PETRI_DIFFERENCE_MINUEND_PLACES=118, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=117, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=113, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=271, PETRI_PLACES=125, PETRI_TRANSITIONS=120} [2022-07-21 09:14:48,967 INFO L279 CegarLoopForPetriNet]: 125 programPoint places, 0 predicate places. [2022-07-21 09:14:48,967 INFO L495 AbstractCegarLoop]: Abstraction has has 125 places, 120 transitions, 271 flow [2022-07-21 09:14:48,967 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 117.0) internal successors, (468), 4 states have internal predecessors, (468), 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) [2022-07-21 09:14:48,967 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-21 09:14:48,968 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] [2022-07-21 09:14:48,975 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Ended with exit code 0 [2022-07-21 09:14:49,174 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 09:14:49,175 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)] === [2022-07-21 09:14:49,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 09:14:49,175 INFO L85 PathProgramCache]: Analyzing trace with hash -675894197, now seen corresponding path program 2 times [2022-07-21 09:14:49,176 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 09:14:49,176 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1022966700] [2022-07-21 09:14:49,176 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-21 09:14:49,176 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 09:14:49,176 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 09:14:49,178 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-21 09:14:49,185 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-07-21 09:14:49,259 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-07-21 09:14:49,260 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-21 09:14:49,263 INFO L263 TraceCheckSpWp]: Trace formula consists of 162 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-21 09:14:49,265 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 09:14:49,348 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 09:14:49,349 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 09:14:49,349 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 09:14:49,349 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1022966700] [2022-07-21 09:14:49,349 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1022966700] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 09:14:49,349 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 09:14:49,350 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-21 09:14:49,350 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [418553] [2022-07-21 09:14:49,350 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 09:14:49,350 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 09:14:49,350 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 09:14:49,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 09:14:49,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-21 09:14:49,352 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 139 [2022-07-21 09:14:49,352 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 125 places, 120 transitions, 271 flow. Second operand has 5 states, 5 states have (on average 115.6) internal successors, (578), 5 states have internal predecessors, (578), 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) [2022-07-21 09:14:49,352 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-21 09:14:49,353 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 139 [2022-07-21 09:14:49,353 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-21 09:14:49,476 INFO L129 PetriNetUnfolder]: 160/476 cut-off events. [2022-07-21 09:14:49,476 INFO L130 PetriNetUnfolder]: For 73/73 co-relation queries the response was YES. [2022-07-21 09:14:49,478 INFO L84 FinitePrefix]: Finished finitePrefix Result has 850 conditions, 476 events. 160/476 cut-off events. For 73/73 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 2083 event pairs, 25 based on Foata normal form. 6/418 useless extension candidates. Maximal degree in co-relation 843. Up to 98 conditions per place. [2022-07-21 09:14:49,479 INFO L132 encePairwiseOnDemand]: 132/139 looper letters, 41 selfloop transitions, 6 changer transitions 4/149 dead transitions. [2022-07-21 09:14:49,480 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 131 places, 149 transitions, 444 flow [2022-07-21 09:14:49,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-21 09:14:49,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-07-21 09:14:49,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 842 transitions. [2022-07-21 09:14:49,482 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.8653648509763617 [2022-07-21 09:14:49,482 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 842 transitions. [2022-07-21 09:14:49,482 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 842 transitions. [2022-07-21 09:14:49,482 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-21 09:14:49,483 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 842 transitions. [2022-07-21 09:14:49,484 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 120.28571428571429) internal successors, (842), 7 states have internal predecessors, (842), 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) [2022-07-21 09:14:49,486 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 139.0) internal successors, (1112), 8 states have internal predecessors, (1112), 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) [2022-07-21 09:14:49,486 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 139.0) internal successors, (1112), 8 states have internal predecessors, (1112), 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) [2022-07-21 09:14:49,486 INFO L186 Difference]: Start difference. First operand has 125 places, 120 transitions, 271 flow. Second operand 7 states and 842 transitions. [2022-07-21 09:14:49,486 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 131 places, 149 transitions, 444 flow [2022-07-21 09:14:49,488 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 130 places, 149 transitions, 440 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-07-21 09:14:49,490 INFO L242 Difference]: Finished difference. Result has 132 places, 119 transitions, 284 flow [2022-07-21 09:14:49,490 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=139, PETRI_DIFFERENCE_MINUEND_FLOW=268, PETRI_DIFFERENCE_MINUEND_PLACES=124, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=120, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=114, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=284, PETRI_PLACES=132, PETRI_TRANSITIONS=119} [2022-07-21 09:14:49,491 INFO L279 CegarLoopForPetriNet]: 125 programPoint places, 7 predicate places. [2022-07-21 09:14:49,491 INFO L495 AbstractCegarLoop]: Abstraction has has 132 places, 119 transitions, 284 flow [2022-07-21 09:14:49,491 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 115.6) internal successors, (578), 5 states have internal predecessors, (578), 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) [2022-07-21 09:14:49,491 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-21 09:14:49,492 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] [2022-07-21 09:14:49,499 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-07-21 09:14:49,698 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 09:14:49,699 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)] === [2022-07-21 09:14:49,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 09:14:49,700 INFO L85 PathProgramCache]: Analyzing trace with hash -2048846514, now seen corresponding path program 1 times [2022-07-21 09:14:49,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 09:14:49,700 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [646039872] [2022-07-21 09:14:49,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 09:14:49,700 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 09:14:49,701 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 09:14:49,722 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-21 09:14:49,723 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-07-21 09:14:49,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:14:49,808 INFO L263 TraceCheckSpWp]: Trace formula consists of 169 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-21 09:14:49,810 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 09:14:49,881 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 09:14:49,882 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 09:14:49,882 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 09:14:49,882 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [646039872] [2022-07-21 09:14:49,882 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [646039872] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 09:14:49,882 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 09:14:49,882 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 09:14:49,883 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2055079981] [2022-07-21 09:14:49,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 09:14:49,883 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 09:14:49,883 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 09:14:49,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 09:14:49,884 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 09:14:49,884 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 139 [2022-07-21 09:14:49,885 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 132 places, 119 transitions, 284 flow. Second operand has 3 states, 3 states have (on average 121.66666666666667) internal successors, (365), 3 states have internal predecessors, (365), 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) [2022-07-21 09:14:49,885 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-21 09:14:49,885 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 139 [2022-07-21 09:14:49,885 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-21 09:14:49,928 INFO L129 PetriNetUnfolder]: 30/213 cut-off events. [2022-07-21 09:14:49,928 INFO L130 PetriNetUnfolder]: For 62/70 co-relation queries the response was YES. [2022-07-21 09:14:49,929 INFO L84 FinitePrefix]: Finished finitePrefix Result has 334 conditions, 213 events. 30/213 cut-off events. For 62/70 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 438 event pairs, 5 based on Foata normal form. 13/208 useless extension candidates. Maximal degree in co-relation 325. Up to 44 conditions per place. [2022-07-21 09:14:49,930 INFO L132 encePairwiseOnDemand]: 135/139 looper letters, 16 selfloop transitions, 3 changer transitions 0/123 dead transitions. [2022-07-21 09:14:49,930 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 134 places, 123 transitions, 331 flow [2022-07-21 09:14:49,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 09:14:49,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-07-21 09:14:49,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 373 transitions. [2022-07-21 09:14:49,931 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.894484412470024 [2022-07-21 09:14:49,932 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 373 transitions. [2022-07-21 09:14:49,932 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 373 transitions. [2022-07-21 09:14:49,932 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-21 09:14:49,932 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 373 transitions. [2022-07-21 09:14:49,933 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 124.33333333333333) internal successors, (373), 3 states have internal predecessors, (373), 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) [2022-07-21 09:14:49,934 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 139.0) internal successors, (556), 4 states have internal predecessors, (556), 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) [2022-07-21 09:14:49,934 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 139.0) internal successors, (556), 4 states have internal predecessors, (556), 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) [2022-07-21 09:14:49,934 INFO L186 Difference]: Start difference. First operand has 132 places, 119 transitions, 284 flow. Second operand 3 states and 373 transitions. [2022-07-21 09:14:49,934 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 134 places, 123 transitions, 331 flow [2022-07-21 09:14:49,935 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 126 places, 123 transitions, 313 flow, removed 1 selfloop flow, removed 8 redundant places. [2022-07-21 09:14:49,937 INFO L242 Difference]: Finished difference. Result has 127 places, 121 transitions, 285 flow [2022-07-21 09:14:49,937 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=139, PETRI_DIFFERENCE_MINUEND_FLOW=266, PETRI_DIFFERENCE_MINUEND_PLACES=124, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=119, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=116, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=285, PETRI_PLACES=127, PETRI_TRANSITIONS=121} [2022-07-21 09:14:49,938 INFO L279 CegarLoopForPetriNet]: 125 programPoint places, 2 predicate places. [2022-07-21 09:14:49,938 INFO L495 AbstractCegarLoop]: Abstraction has has 127 places, 121 transitions, 285 flow [2022-07-21 09:14:49,938 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 121.66666666666667) internal successors, (365), 3 states have internal predecessors, (365), 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) [2022-07-21 09:14:49,938 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-21 09:14:49,939 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] [2022-07-21 09:14:49,964 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-07-21 09:14:50,162 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 09:14:50,162 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)] === [2022-07-21 09:14:50,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 09:14:50,163 INFO L85 PathProgramCache]: Analyzing trace with hash -310841366, now seen corresponding path program 1 times [2022-07-21 09:14:50,163 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 09:14:50,163 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [133097303] [2022-07-21 09:14:50,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 09:14:50,163 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 09:14:50,164 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 09:14:50,165 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-21 09:14:50,166 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-07-21 09:14:50,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:14:50,264 INFO L263 TraceCheckSpWp]: Trace formula consists of 183 conjuncts, 9 conjunts are in the unsatisfiable core [2022-07-21 09:14:50,267 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 09:14:50,552 INFO L356 Elim1Store]: treesize reduction 105, result has 0.9 percent of original size [2022-07-21 09:14:50,552 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 89 treesize of output 19 [2022-07-21 09:14:50,600 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 09:14:50,600 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-21 09:14:50,882 INFO L356 Elim1Store]: treesize reduction 442, result has 10.0 percent of original size [2022-07-21 09:14:50,883 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 139 treesize of output 82 [2022-07-21 09:15:47,882 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 09:15:47,882 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 09:15:47,882 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [133097303] [2022-07-21 09:15:47,883 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [133097303] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-21 09:15:47,883 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-21 09:15:47,883 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2022-07-21 09:15:47,883 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [171633144] [2022-07-21 09:15:47,883 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-21 09:15:47,883 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-07-21 09:15:47,883 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 09:15:47,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-07-21 09:15:47,884 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=143, Unknown=0, NotChecked=0, Total=182 [2022-07-21 09:15:47,885 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 97 out of 139 [2022-07-21 09:15:47,888 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 127 places, 121 transitions, 285 flow. Second operand has 14 states, 14 states have (on average 100.85714285714286) internal successors, (1412), 14 states have internal predecessors, (1412), 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) [2022-07-21 09:15:47,888 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-21 09:15:47,888 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 97 of 139 [2022-07-21 09:15:47,888 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-21 09:15:48,647 INFO L129 PetriNetUnfolder]: 671/1605 cut-off events. [2022-07-21 09:15:48,647 INFO L130 PetriNetUnfolder]: For 530/622 co-relation queries the response was YES. [2022-07-21 09:15:48,650 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3288 conditions, 1605 events. 671/1605 cut-off events. For 530/622 co-relation queries the response was YES. Maximal size of possible extension queue 108. Compared 10399 event pairs, 31 based on Foata normal form. 12/1451 useless extension candidates. Maximal degree in co-relation 3280. Up to 233 conditions per place. [2022-07-21 09:15:48,655 INFO L132 encePairwiseOnDemand]: 125/139 looper letters, 108 selfloop transitions, 32 changer transitions 0/222 dead transitions. [2022-07-21 09:15:48,656 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 142 places, 222 transitions, 873 flow [2022-07-21 09:15:48,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-07-21 09:15:48,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2022-07-21 09:15:48,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1693 transitions. [2022-07-21 09:15:48,659 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.7612410071942446 [2022-07-21 09:15:48,659 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 1693 transitions. [2022-07-21 09:15:48,659 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 1693 transitions. [2022-07-21 09:15:48,660 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-21 09:15:48,660 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 1693 transitions. [2022-07-21 09:15:48,663 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 105.8125) internal successors, (1693), 16 states have internal predecessors, (1693), 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) [2022-07-21 09:15:48,667 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 139.0) internal successors, (2363), 17 states have internal predecessors, (2363), 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) [2022-07-21 09:15:48,668 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 139.0) internal successors, (2363), 17 states have internal predecessors, (2363), 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) [2022-07-21 09:15:48,668 INFO L186 Difference]: Start difference. First operand has 127 places, 121 transitions, 285 flow. Second operand 16 states and 1693 transitions. [2022-07-21 09:15:48,668 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 142 places, 222 transitions, 873 flow [2022-07-21 09:15:48,671 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 141 places, 222 transitions, 868 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-07-21 09:15:48,673 INFO L242 Difference]: Finished difference. Result has 147 places, 145 transitions, 503 flow [2022-07-21 09:15:48,673 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=139, PETRI_DIFFERENCE_MINUEND_FLOW=282, PETRI_DIFFERENCE_MINUEND_PLACES=126, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=121, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=105, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=503, PETRI_PLACES=147, PETRI_TRANSITIONS=145} [2022-07-21 09:15:48,675 INFO L279 CegarLoopForPetriNet]: 125 programPoint places, 22 predicate places. [2022-07-21 09:15:48,675 INFO L495 AbstractCegarLoop]: Abstraction has has 147 places, 145 transitions, 503 flow [2022-07-21 09:15:48,676 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 100.85714285714286) internal successors, (1412), 14 states have internal predecessors, (1412), 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) [2022-07-21 09:15:48,676 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-21 09:15:48,676 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] [2022-07-21 09:15:48,697 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-07-21 09:15:48,884 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 09:15:48,884 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)] === [2022-07-21 09:15:48,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 09:15:48,886 INFO L85 PathProgramCache]: Analyzing trace with hash -1608114416, now seen corresponding path program 1 times [2022-07-21 09:15:48,886 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 09:15:48,887 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [595451549] [2022-07-21 09:15:48,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 09:15:48,887 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 09:15:48,887 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 09:15:48,906 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-21 09:15:48,919 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-07-21 09:15:48,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:15:48,990 INFO L263 TraceCheckSpWp]: Trace formula consists of 183 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-21 09:15:48,991 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 09:15:49,011 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 09:15:49,011 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 09:15:49,012 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 09:15:49,012 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [595451549] [2022-07-21 09:15:49,012 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [595451549] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 09:15:49,012 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 09:15:49,012 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 09:15:49,012 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2103425161] [2022-07-21 09:15:49,012 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 09:15:49,013 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 09:15:49,013 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 09:15:49,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 09:15:49,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 09:15:49,014 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 139 [2022-07-21 09:15:49,015 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 147 places, 145 transitions, 503 flow. Second operand has 3 states, 3 states have (on average 122.66666666666667) internal successors, (368), 3 states have internal predecessors, (368), 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) [2022-07-21 09:15:49,015 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-21 09:15:49,015 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 139 [2022-07-21 09:15:49,015 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-21 09:15:49,113 INFO L129 PetriNetUnfolder]: 291/903 cut-off events. [2022-07-21 09:15:49,113 INFO L130 PetriNetUnfolder]: For 752/773 co-relation queries the response was YES. [2022-07-21 09:15:49,116 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2230 conditions, 903 events. 291/903 cut-off events. For 752/773 co-relation queries the response was YES. Maximal size of possible extension queue 67. Compared 5416 event pairs, 97 based on Foata normal form. 6/804 useless extension candidates. Maximal degree in co-relation 2217. Up to 334 conditions per place. [2022-07-21 09:15:49,120 INFO L132 encePairwiseOnDemand]: 136/139 looper letters, 26 selfloop transitions, 2 changer transitions 0/151 dead transitions. [2022-07-21 09:15:49,120 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 149 places, 151 transitions, 589 flow [2022-07-21 09:15:49,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 09:15:49,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-07-21 09:15:49,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 377 transitions. [2022-07-21 09:15:49,121 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.9040767386091128 [2022-07-21 09:15:49,121 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 377 transitions. [2022-07-21 09:15:49,121 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 377 transitions. [2022-07-21 09:15:49,122 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-21 09:15:49,122 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 377 transitions. [2022-07-21 09:15:49,122 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 125.66666666666667) internal successors, (377), 3 states have internal predecessors, (377), 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) [2022-07-21 09:15:49,123 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 139.0) internal successors, (556), 4 states have internal predecessors, (556), 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) [2022-07-21 09:15:49,123 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 139.0) internal successors, (556), 4 states have internal predecessors, (556), 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) [2022-07-21 09:15:49,123 INFO L186 Difference]: Start difference. First operand has 147 places, 145 transitions, 503 flow. Second operand 3 states and 377 transitions. [2022-07-21 09:15:49,123 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 149 places, 151 transitions, 589 flow [2022-07-21 09:15:49,128 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 146 places, 151 transitions, 570 flow, removed 6 selfloop flow, removed 3 redundant places. [2022-07-21 09:15:49,130 INFO L242 Difference]: Finished difference. Result has 147 places, 144 transitions, 484 flow [2022-07-21 09:15:49,130 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=139, PETRI_DIFFERENCE_MINUEND_FLOW=472, PETRI_DIFFERENCE_MINUEND_PLACES=144, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=143, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=141, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=484, PETRI_PLACES=147, PETRI_TRANSITIONS=144} [2022-07-21 09:15:49,132 INFO L279 CegarLoopForPetriNet]: 125 programPoint places, 22 predicate places. [2022-07-21 09:15:49,132 INFO L495 AbstractCegarLoop]: Abstraction has has 147 places, 144 transitions, 484 flow [2022-07-21 09:15:49,132 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 122.66666666666667) internal successors, (368), 3 states have internal predecessors, (368), 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) [2022-07-21 09:15:49,132 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-21 09:15:49,132 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] [2022-07-21 09:15:49,154 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Ended with exit code 0 [2022-07-21 09:15:49,340 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 09:15:49,343 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)] === [2022-07-21 09:15:49,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 09:15:49,343 INFO L85 PathProgramCache]: Analyzing trace with hash -1598415520, now seen corresponding path program 2 times [2022-07-21 09:15:49,344 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 09:15:49,344 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1859341348] [2022-07-21 09:15:49,344 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-21 09:15:49,344 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 09:15:49,344 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 09:15:49,345 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-21 09:15:49,347 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-07-21 09:15:49,441 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-07-21 09:15:49,442 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-21 09:15:49,446 INFO L263 TraceCheckSpWp]: Trace formula consists of 183 conjuncts, 13 conjunts are in the unsatisfiable core [2022-07-21 09:15:49,448 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 09:15:49,704 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-07-21 09:15:49,704 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 09:15:49,704 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 09:15:49,704 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1859341348] [2022-07-21 09:15:49,704 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1859341348] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 09:15:49,704 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 09:15:49,704 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-07-21 09:15:49,704 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2133601436] [2022-07-21 09:15:49,704 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 09:15:49,705 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-07-21 09:15:49,705 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 09:15:49,705 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-07-21 09:15:49,705 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2022-07-21 09:15:49,706 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 96 out of 139 [2022-07-21 09:15:49,707 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 147 places, 144 transitions, 484 flow. Second operand has 14 states, 14 states have (on average 98.0) internal successors, (1372), 14 states have internal predecessors, (1372), 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) [2022-07-21 09:15:49,707 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-21 09:15:49,707 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 96 of 139 [2022-07-21 09:15:49,707 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-21 09:15:50,320 INFO L129 PetriNetUnfolder]: 328/1046 cut-off events. [2022-07-21 09:15:50,320 INFO L130 PetriNetUnfolder]: For 1049/1101 co-relation queries the response was YES. [2022-07-21 09:15:50,323 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2787 conditions, 1046 events. 328/1046 cut-off events. For 1049/1101 co-relation queries the response was YES. Maximal size of possible extension queue 70. Compared 6545 event pairs, 146 based on Foata normal form. 22/1003 useless extension candidates. Maximal degree in co-relation 2772. Up to 373 conditions per place. [2022-07-21 09:15:50,326 INFO L132 encePairwiseOnDemand]: 121/139 looper letters, 36 selfloop transitions, 14 changer transitions 11/164 dead transitions. [2022-07-21 09:15:50,326 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 163 places, 164 transitions, 683 flow [2022-07-21 09:15:50,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-07-21 09:15:50,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2022-07-21 09:15:50,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 1684 transitions. [2022-07-21 09:15:50,330 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.7126534066864155 [2022-07-21 09:15:50,330 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 1684 transitions. [2022-07-21 09:15:50,330 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 1684 transitions. [2022-07-21 09:15:50,331 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-21 09:15:50,331 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 1684 transitions. [2022-07-21 09:15:50,334 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 99.05882352941177) internal successors, (1684), 17 states have internal predecessors, (1684), 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) [2022-07-21 09:15:50,337 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 139.0) internal successors, (2502), 18 states have internal predecessors, (2502), 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) [2022-07-21 09:15:50,338 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 139.0) internal successors, (2502), 18 states have internal predecessors, (2502), 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) [2022-07-21 09:15:50,338 INFO L186 Difference]: Start difference. First operand has 147 places, 144 transitions, 484 flow. Second operand 17 states and 1684 transitions. [2022-07-21 09:15:50,338 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 163 places, 164 transitions, 683 flow [2022-07-21 09:15:50,341 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 162 places, 164 transitions, 681 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-07-21 09:15:50,343 INFO L242 Difference]: Finished difference. Result has 166 places, 145 transitions, 524 flow [2022-07-21 09:15:50,344 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=139, PETRI_DIFFERENCE_MINUEND_FLOW=482, PETRI_DIFFERENCE_MINUEND_PLACES=146, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=144, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=130, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=524, PETRI_PLACES=166, PETRI_TRANSITIONS=145} [2022-07-21 09:15:50,344 INFO L279 CegarLoopForPetriNet]: 125 programPoint places, 41 predicate places. [2022-07-21 09:15:50,344 INFO L495 AbstractCegarLoop]: Abstraction has has 166 places, 145 transitions, 524 flow [2022-07-21 09:15:50,345 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 98.0) internal successors, (1372), 14 states have internal predecessors, (1372), 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) [2022-07-21 09:15:50,345 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-21 09:15:50,345 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] [2022-07-21 09:15:50,355 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2022-07-21 09:15:50,552 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 09:15:50,554 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)] === [2022-07-21 09:15:50,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 09:15:50,555 INFO L85 PathProgramCache]: Analyzing trace with hash 267173087, now seen corresponding path program 1 times [2022-07-21 09:15:50,556 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 09:15:50,556 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1959576093] [2022-07-21 09:15:50,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 09:15:50,556 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 09:15:50,556 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 09:15:50,572 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-21 09:15:50,599 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-07-21 09:15:50,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:15:50,732 INFO L263 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 17 conjunts are in the unsatisfiable core [2022-07-21 09:15:50,737 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 09:15:50,763 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-07-21 09:15:50,869 INFO L356 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-07-21 09:15:50,869 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2022-07-21 09:15:51,165 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 51 treesize of output 47 [2022-07-21 09:15:51,243 INFO L356 Elim1Store]: treesize reduction 105, result has 0.9 percent of original size [2022-07-21 09:15:51,243 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 89 treesize of output 19 [2022-07-21 09:15:51,322 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-07-21 09:15:51,323 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-21 09:15:51,551 WARN L833 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_191 (Array (_ BitVec 32) (_ BitVec 8)))) (bvsle (_ bv0 32) (bvadd (let ((.cse0 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_191) c_~queue~0.base)) (.cse1 (bvmul (_ bv4 32) c_~front~0))) (concat (concat (concat (select .cse0 (bvadd c_~queue~0.offset (_ bv3 32) .cse1)) (select .cse0 (bvadd c_~queue~0.offset (_ bv2 32) .cse1))) (select .cse0 (bvadd c_~queue~0.offset .cse1 (_ bv1 32)))) (select .cse0 (bvadd c_~queue~0.offset .cse1)))) c_~sum~0))) (forall ((v_ArrVal_191 (Array (_ BitVec 32) (_ BitVec 8)))) (bvsle (bvadd (let ((.cse2 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_191) c_~queue~0.base)) (.cse3 (bvmul (_ bv4 32) c_~front~0))) (concat (concat (concat (select .cse2 (bvadd c_~queue~0.offset (_ bv3 32) .cse3)) (select .cse2 (bvadd c_~queue~0.offset (_ bv2 32) .cse3))) (select .cse2 (bvadd c_~queue~0.offset .cse3 (_ bv1 32)))) (select .cse2 (bvadd c_~queue~0.offset .cse3)))) c_~sum~0) (_ bv1 32)))) is different from false [2022-07-21 09:15:51,679 INFO L356 Elim1Store]: treesize reduction 442, result has 10.0 percent of original size [2022-07-21 09:15:51,679 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 235 treesize of output 178 [2022-07-21 09:15:51,702 INFO L356 Elim1Store]: treesize reduction 105, result has 0.9 percent of original size [2022-07-21 09:15:51,702 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 38 treesize of output 11 [2022-07-21 09:15:51,722 INFO L356 Elim1Store]: treesize reduction 105, result has 0.9 percent of original size [2022-07-21 09:15:51,722 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 38 treesize of output 11 [2022-07-21 09:15:53,971 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_arrayElimCell_21 (_ BitVec 8)) (v_arrayElimCell_20 (_ BitVec 8)) (~queue~0.offset (_ BitVec 32)) (v_arrayElimCell_23 (_ BitVec 8)) (v_arrayElimCell_22 (_ BitVec 8)) (v_arrayElimCell_25 (_ BitVec 8)) (v_arrayElimCell_24 (_ BitVec 8)) (v_arrayElimCell_27 (_ BitVec 8)) (v_prenex_1 (Array (_ BitVec 32) (_ BitVec 8))) (v_arrayElimCell_26 (_ BitVec 8)) (v_ArrVal_191 (Array (_ BitVec 32) (_ BitVec 8)))) (let ((.cse8 (bvmul (_ bv4 32) c_~front~0))) (let ((.cse0 (= .cse8 (bvmul (_ bv4 32) c_~back~0)))) (or (and .cse0 (not (= v_arrayElimCell_21 v_arrayElimCell_26))) (and (not (= v_arrayElimCell_23 v_arrayElimCell_24)) .cse0) (let ((.cse3 (= |c_ULTIMATE.start_main_~#t3~0#1.base| c_~queue~0.base))) (let ((.cse2 (not .cse3)) (.cse1 (bvadd (concat (concat (concat v_arrayElimCell_26 v_arrayElimCell_24) v_arrayElimCell_25) v_arrayElimCell_27) c_~sum~0)) (.cse4 (bvadd ~queue~0.offset (_ bv3 32) .cse8)) (.cse5 (bvadd ~queue~0.offset (_ bv2 32) .cse8)) (.cse6 (bvadd ~queue~0.offset .cse8 (_ bv1 32))) (.cse7 (bvadd ~queue~0.offset .cse8))) (and (or (and (bvsle (_ bv0 32) .cse1) .cse2) (and .cse3 (bvsle (_ bv0 32) (bvadd (concat (concat (concat (select v_prenex_1 .cse4) (select v_prenex_1 .cse5)) (select v_prenex_1 .cse6)) (select v_prenex_1 .cse7)) c_~sum~0)))) (or (and .cse2 (bvsle .cse1 (_ bv1 32))) (and .cse3 (bvsle (bvadd (concat (concat (concat (select v_ArrVal_191 .cse4) (select v_ArrVal_191 .cse5)) (select v_ArrVal_191 .cse6)) (select v_ArrVal_191 .cse7)) c_~sum~0) (_ bv1 32))))))) (and .cse0 (not (= v_arrayElimCell_22 v_arrayElimCell_27))) (not (= (concat (concat (concat v_arrayElimCell_21 v_arrayElimCell_23) v_arrayElimCell_20) v_arrayElimCell_22) (_ bv1 32))) (and .cse0 (not (= v_arrayElimCell_20 v_arrayElimCell_25))))))) is different from false [2022-07-21 09:15:54,037 INFO L356 Elim1Store]: treesize reduction 105, result has 0.9 percent of original size [2022-07-21 09:15:54,038 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 38 treesize of output 11 [2022-07-21 09:15:54,066 INFO L356 Elim1Store]: treesize reduction 105, result has 0.9 percent of original size [2022-07-21 09:15:54,066 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 38 treesize of output 11 [2022-07-21 09:15:56,623 INFO L356 Elim1Store]: treesize reduction 105, result has 0.9 percent of original size [2022-07-21 09:15:56,623 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 38 treesize of output 11 [2022-07-21 09:15:56,637 INFO L356 Elim1Store]: treesize reduction 105, result has 0.9 percent of original size [2022-07-21 09:15:56,638 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 38 treesize of output 11 [2022-07-21 09:15:58,877 INFO L356 Elim1Store]: treesize reduction 105, result has 0.9 percent of original size [2022-07-21 09:15:58,877 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 38 treesize of output 11 [2022-07-21 09:15:58,892 INFO L356 Elim1Store]: treesize reduction 105, result has 0.9 percent of original size [2022-07-21 09:15:58,893 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 38 treesize of output 11 [2022-07-21 09:16:01,415 INFO L356 Elim1Store]: treesize reduction 105, result has 0.9 percent of original size [2022-07-21 09:16:01,415 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 38 treesize of output 11 [2022-07-21 09:16:01,432 INFO L356 Elim1Store]: treesize reduction 105, result has 0.9 percent of original size [2022-07-21 09:16:01,433 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 38 treesize of output 11 [2022-07-21 09:16:03,600 INFO L356 Elim1Store]: treesize reduction 105, result has 0.9 percent of original size [2022-07-21 09:16:03,600 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 38 treesize of output 11 [2022-07-21 09:16:03,614 INFO L356 Elim1Store]: treesize reduction 105, result has 0.9 percent of original size [2022-07-21 09:16:03,615 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 38 treesize of output 11 [2022-07-21 09:16:05,971 INFO L356 Elim1Store]: treesize reduction 105, result has 0.9 percent of original size [2022-07-21 09:16:05,972 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 38 treesize of output 11 [2022-07-21 09:16:05,988 INFO L356 Elim1Store]: treesize reduction 105, result has 0.9 percent of original size [2022-07-21 09:16:06,000 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 38 treesize of output 11 [2022-07-21 09:16:08,508 INFO L356 Elim1Store]: treesize reduction 105, result has 0.9 percent of original size [2022-07-21 09:16:08,509 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 38 treesize of output 11 [2022-07-21 09:16:08,535 INFO L356 Elim1Store]: treesize reduction 105, result has 0.9 percent of original size [2022-07-21 09:16:08,535 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 38 treesize of output 11 [2022-07-21 09:16:10,845 INFO L356 Elim1Store]: treesize reduction 105, result has 0.9 percent of original size [2022-07-21 09:16:10,846 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 38 treesize of output 11 [2022-07-21 09:16:10,865 INFO L356 Elim1Store]: treesize reduction 105, result has 0.9 percent of original size [2022-07-21 09:16:10,865 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 38 treesize of output 11 [2022-07-21 09:16:13,065 INFO L356 Elim1Store]: treesize reduction 105, result has 0.9 percent of original size [2022-07-21 09:16:13,066 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 38 treesize of output 11 [2022-07-21 09:16:13,082 INFO L356 Elim1Store]: treesize reduction 105, result has 0.9 percent of original size [2022-07-21 09:16:13,083 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 38 treesize of output 11 [2022-07-21 09:16:15,144 INFO L356 Elim1Store]: treesize reduction 105, result has 0.9 percent of original size [2022-07-21 09:16:15,145 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 38 treesize of output 11 [2022-07-21 09:16:15,159 INFO L356 Elim1Store]: treesize reduction 105, result has 0.9 percent of original size [2022-07-21 09:16:15,160 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 38 treesize of output 11 [2022-07-21 09:16:17,350 INFO L356 Elim1Store]: treesize reduction 105, result has 0.9 percent of original size [2022-07-21 09:16:17,350 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 38 treesize of output 11 [2022-07-21 09:16:17,367 INFO L356 Elim1Store]: treesize reduction 105, result has 0.9 percent of original size [2022-07-21 09:16:17,367 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 38 treesize of output 11 [2022-07-21 09:16:19,736 INFO L356 Elim1Store]: treesize reduction 105, result has 0.9 percent of original size [2022-07-21 09:16:19,736 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 38 treesize of output 11 [2022-07-21 09:16:19,761 INFO L356 Elim1Store]: treesize reduction 105, result has 0.9 percent of original size [2022-07-21 09:16:19,761 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 38 treesize of output 11 [2022-07-21 09:16:21,780 INFO L356 Elim1Store]: treesize reduction 105, result has 0.9 percent of original size [2022-07-21 09:16:21,780 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 38 treesize of output 11 [2022-07-21 09:16:21,795 INFO L356 Elim1Store]: treesize reduction 105, result has 0.9 percent of original size [2022-07-21 09:16:21,795 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 38 treesize of output 11 [2022-07-21 09:16:23,966 INFO L356 Elim1Store]: treesize reduction 105, result has 0.9 percent of original size [2022-07-21 09:16:23,966 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 38 treesize of output 11 [2022-07-21 09:16:23,991 INFO L356 Elim1Store]: treesize reduction 105, result has 0.9 percent of original size [2022-07-21 09:16:23,997 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 38 treesize of output 11 [2022-07-21 09:16:25,914 INFO L356 Elim1Store]: treesize reduction 105, result has 0.9 percent of original size [2022-07-21 09:16:25,914 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 38 treesize of output 11 [2022-07-21 09:16:25,929 INFO L356 Elim1Store]: treesize reduction 105, result has 0.9 percent of original size [2022-07-21 09:16:25,930 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 38 treesize of output 11 [2022-07-21 09:16:28,425 INFO L356 Elim1Store]: treesize reduction 105, result has 0.9 percent of original size [2022-07-21 09:16:28,425 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 38 treesize of output 11 [2022-07-21 09:16:28,441 INFO L356 Elim1Store]: treesize reduction 105, result has 0.9 percent of original size [2022-07-21 09:16:28,442 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 38 treesize of output 11 [2022-07-21 09:16:30,975 INFO L356 Elim1Store]: treesize reduction 105, result has 0.9 percent of original size [2022-07-21 09:16:30,976 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 38 treesize of output 11 [2022-07-21 09:16:30,991 INFO L356 Elim1Store]: treesize reduction 105, result has 0.9 percent of original size [2022-07-21 09:16:30,991 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 38 treesize of output 11 [2022-07-21 09:16:33,314 INFO L356 Elim1Store]: treesize reduction 105, result has 0.9 percent of original size [2022-07-21 09:16:33,314 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 38 treesize of output 11 [2022-07-21 09:16:33,336 INFO L356 Elim1Store]: treesize reduction 105, result has 0.9 percent of original size [2022-07-21 09:16:33,336 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 38 treesize of output 11 [2022-07-21 09:16:35,970 INFO L356 Elim1Store]: treesize reduction 105, result has 0.9 percent of original size [2022-07-21 09:16:35,970 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 38 treesize of output 11 [2022-07-21 09:16:35,988 INFO L356 Elim1Store]: treesize reduction 105, result has 0.9 percent of original size [2022-07-21 09:16:35,989 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 38 treesize of output 11 [2022-07-21 09:16:38,570 INFO L356 Elim1Store]: treesize reduction 105, result has 0.9 percent of original size [2022-07-21 09:16:38,570 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 38 treesize of output 11 [2022-07-21 09:16:38,590 INFO L356 Elim1Store]: treesize reduction 105, result has 0.9 percent of original size [2022-07-21 09:16:38,591 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 38 treesize of output 11 [2022-07-21 09:16:40,958 INFO L356 Elim1Store]: treesize reduction 105, result has 0.9 percent of original size [2022-07-21 09:16:40,958 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 38 treesize of output 11 [2022-07-21 09:16:40,978 INFO L356 Elim1Store]: treesize reduction 105, result has 0.9 percent of original size [2022-07-21 09:16:40,978 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 38 treesize of output 11 [2022-07-21 09:16:43,031 INFO L356 Elim1Store]: treesize reduction 105, result has 0.9 percent of original size [2022-07-21 09:16:43,031 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 38 treesize of output 11 [2022-07-21 09:16:43,047 INFO L356 Elim1Store]: treesize reduction 105, result has 0.9 percent of original size [2022-07-21 09:16:43,047 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 38 treesize of output 11 [2022-07-21 09:16:45,534 INFO L356 Elim1Store]: treesize reduction 105, result has 0.9 percent of original size [2022-07-21 09:16:45,534 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 38 treesize of output 11 [2022-07-21 09:16:45,550 INFO L356 Elim1Store]: treesize reduction 105, result has 0.9 percent of original size [2022-07-21 09:16:45,550 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 38 treesize of output 11 [2022-07-21 09:16:47,810 INFO L356 Elim1Store]: treesize reduction 105, result has 0.9 percent of original size [2022-07-21 09:16:47,810 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 38 treesize of output 11 [2022-07-21 09:16:47,830 INFO L356 Elim1Store]: treesize reduction 105, result has 0.9 percent of original size [2022-07-21 09:16:47,831 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 38 treesize of output 11 [2022-07-21 09:16:50,334 INFO L356 Elim1Store]: treesize reduction 105, result has 0.9 percent of original size [2022-07-21 09:16:50,334 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 38 treesize of output 11 [2022-07-21 09:16:50,350 INFO L356 Elim1Store]: treesize reduction 105, result has 0.9 percent of original size [2022-07-21 09:16:50,350 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 38 treesize of output 11 [2022-07-21 09:16:52,383 INFO L356 Elim1Store]: treesize reduction 105, result has 0.9 percent of original size [2022-07-21 09:16:52,383 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 38 treesize of output 11 [2022-07-21 09:16:52,398 INFO L356 Elim1Store]: treesize reduction 105, result has 0.9 percent of original size [2022-07-21 09:16:52,398 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 38 treesize of output 11 [2022-07-21 09:16:54,887 INFO L356 Elim1Store]: treesize reduction 105, result has 0.9 percent of original size [2022-07-21 09:16:54,887 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 38 treesize of output 11 [2022-07-21 09:16:54,903 INFO L356 Elim1Store]: treesize reduction 105, result has 0.9 percent of original size [2022-07-21 09:16:54,903 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 38 treesize of output 11 [2022-07-21 09:16:54,952 INFO L356 Elim1Store]: treesize reduction 105, result has 0.9 percent of original size [2022-07-21 09:16:54,953 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 38 treesize of output 11 [2022-07-21 09:16:54,989 INFO L356 Elim1Store]: treesize reduction 105, result has 0.9 percent of original size [2022-07-21 09:16:54,989 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 38 treesize of output 11 [2022-07-21 09:16:55,420 INFO L356 Elim1Store]: treesize reduction 105, result has 0.9 percent of original size [2022-07-21 09:16:55,425 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 38 treesize of output 11 [2022-07-21 09:16:55,438 INFO L356 Elim1Store]: treesize reduction 105, result has 0.9 percent of original size [2022-07-21 09:16:55,439 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 38 treesize of output 11 [2022-07-21 09:16:55,480 INFO L356 Elim1Store]: treesize reduction 105, result has 0.9 percent of original size [2022-07-21 09:16:55,481 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 38 treesize of output 11 [2022-07-21 09:16:55,496 INFO L356 Elim1Store]: treesize reduction 105, result has 0.9 percent of original size [2022-07-21 09:16:55,496 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 38 treesize of output 11 [2022-07-21 09:16:55,833 INFO L356 Elim1Store]: treesize reduction 105, result has 0.9 percent of original size [2022-07-21 09:16:55,834 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 38 treesize of output 11 [2022-07-21 09:16:55,870 INFO L356 Elim1Store]: treesize reduction 105, result has 0.9 percent of original size [2022-07-21 09:16:55,871 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 38 treesize of output 11 [2022-07-21 09:16:55,888 INFO L356 Elim1Store]: treesize reduction 105, result has 0.9 percent of original size [2022-07-21 09:16:55,888 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 38 treesize of output 11 [2022-07-21 09:16:55,911 INFO L356 Elim1Store]: treesize reduction 105, result has 0.9 percent of original size [2022-07-21 09:16:55,911 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 38 treesize of output 11 [2022-07-21 09:16:56,195 INFO L356 Elim1Store]: treesize reduction 105, result has 0.9 percent of original size [2022-07-21 09:16:56,196 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 38 treesize of output 11 [2022-07-21 09:16:56,211 INFO L356 Elim1Store]: treesize reduction 105, result has 0.9 percent of original size [2022-07-21 09:16:56,211 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 38 treesize of output 11 [2022-07-21 09:16:56,275 INFO L356 Elim1Store]: treesize reduction 105, result has 0.9 percent of original size [2022-07-21 09:16:56,275 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 38 treesize of output 11 [2022-07-21 09:16:56,298 INFO L356 Elim1Store]: treesize reduction 105, result has 0.9 percent of original size [2022-07-21 09:16:56,299 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 38 treesize of output 11 [2022-07-21 09:16:56,333 INFO L356 Elim1Store]: treesize reduction 105, result has 0.9 percent of original size [2022-07-21 09:16:56,333 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 38 treesize of output 11 [2022-07-21 09:16:56,386 INFO L356 Elim1Store]: treesize reduction 105, result has 0.9 percent of original size [2022-07-21 09:16:56,386 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 38 treesize of output 11 [2022-07-21 09:16:56,406 INFO L356 Elim1Store]: treesize reduction 105, result has 0.9 percent of original size [2022-07-21 09:16:56,406 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 38 treesize of output 11 [2022-07-21 09:16:56,420 INFO L356 Elim1Store]: treesize reduction 105, result has 0.9 percent of original size [2022-07-21 09:16:56,420 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 38 treesize of output 11 [2022-07-21 09:16:56,648 INFO L356 Elim1Store]: treesize reduction 105, result has 0.9 percent of original size [2022-07-21 09:16:56,649 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 38 treesize of output 11 [2022-07-21 09:16:56,951 INFO L356 Elim1Store]: treesize reduction 105, result has 0.9 percent of original size [2022-07-21 09:16:56,951 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 38 treesize of output 11 [2022-07-21 09:16:56,972 INFO L356 Elim1Store]: treesize reduction 105, result has 0.9 percent of original size [2022-07-21 09:16:56,973 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 38 treesize of output 11 [2022-07-21 09:16:56,989 INFO L356 Elim1Store]: treesize reduction 105, result has 0.9 percent of original size [2022-07-21 09:16:56,989 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 38 treesize of output 11 [2022-07-21 09:16:57,030 INFO L356 Elim1Store]: treesize reduction 105, result has 0.9 percent of original size [2022-07-21 09:16:57,031 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 38 treesize of output 11 [2022-07-21 09:16:57,051 INFO L356 Elim1Store]: treesize reduction 105, result has 0.9 percent of original size [2022-07-21 09:16:57,051 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 38 treesize of output 11 [2022-07-21 09:16:57,081 INFO L356 Elim1Store]: treesize reduction 105, result has 0.9 percent of original size [2022-07-21 09:16:57,081 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 38 treesize of output 11 [2022-07-21 09:16:57,094 INFO L356 Elim1Store]: treesize reduction 105, result has 0.9 percent of original size [2022-07-21 09:16:57,095 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 38 treesize of output 11 [2022-07-21 09:16:57,157 INFO L356 Elim1Store]: treesize reduction 105, result has 0.9 percent of original size [2022-07-21 09:16:57,158 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 38 treesize of output 11 [2022-07-21 09:16:57,196 INFO L356 Elim1Store]: treesize reduction 105, result has 0.9 percent of original size [2022-07-21 09:16:57,196 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 38 treesize of output 11 [2022-07-21 09:16:57,259 INFO L356 Elim1Store]: treesize reduction 105, result has 0.9 percent of original size [2022-07-21 09:16:57,259 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 38 treesize of output 11 [2022-07-21 09:16:57,278 INFO L356 Elim1Store]: treesize reduction 105, result has 0.9 percent of original size [2022-07-21 09:16:57,278 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 38 treesize of output 11 [2022-07-21 09:16:57,311 INFO L356 Elim1Store]: treesize reduction 105, result has 0.9 percent of original size [2022-07-21 09:16:57,311 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 38 treesize of output 11 [2022-07-21 09:16:57,332 INFO L356 Elim1Store]: treesize reduction 105, result has 0.9 percent of original size [2022-07-21 09:16:57,332 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 38 treesize of output 11 [2022-07-21 09:16:57,360 INFO L356 Elim1Store]: treesize reduction 105, result has 0.9 percent of original size [2022-07-21 09:16:57,360 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 38 treesize of output 11 [2022-07-21 09:16:57,400 INFO L356 Elim1Store]: treesize reduction 105, result has 0.9 percent of original size [2022-07-21 09:16:57,401 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 38 treesize of output 11