./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/weaver/parallel-min-max-1.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6c24879c 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/parallel-min-max-1.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 0e7e1d85f63f5db62c0766d87dec12398108cf8053838b2df867ce8148d55e54 --- Real Ultimate output --- This is Ultimate 0.2.2-?-6c24879 [2022-07-12 10:27:05,373 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-12 10:27:05,377 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-12 10:27:05,417 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-12 10:27:05,418 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-12 10:27:05,419 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-12 10:27:05,420 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-12 10:27:05,421 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-12 10:27:05,422 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-12 10:27:05,423 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-12 10:27:05,424 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-12 10:27:05,424 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-12 10:27:05,425 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-12 10:27:05,425 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-12 10:27:05,426 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-12 10:27:05,427 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-12 10:27:05,428 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-12 10:27:05,428 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-12 10:27:05,429 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-12 10:27:05,439 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-12 10:27:05,443 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-12 10:27:05,445 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-12 10:27:05,446 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-12 10:27:05,448 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-12 10:27:05,449 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-12 10:27:05,451 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-12 10:27:05,452 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-12 10:27:05,452 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-12 10:27:05,453 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-12 10:27:05,453 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-12 10:27:05,454 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-12 10:27:05,454 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-12 10:27:05,456 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-12 10:27:05,456 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-12 10:27:05,457 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-12 10:27:05,459 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-12 10:27:05,459 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-12 10:27:05,460 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-12 10:27:05,460 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-12 10:27:05,460 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-12 10:27:05,461 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-12 10:27:05,462 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-12 10:27:05,463 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-12 10:27:05,485 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-12 10:27:05,486 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-12 10:27:05,486 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-12 10:27:05,486 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-12 10:27:05,487 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-12 10:27:05,487 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-12 10:27:05,487 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-12 10:27:05,487 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-12 10:27:05,487 INFO L138 SettingsManager]: * Use SBE=true [2022-07-12 10:27:05,488 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-12 10:27:05,488 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-12 10:27:05,488 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-12 10:27:05,488 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-12 10:27:05,488 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-12 10:27:05,488 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-12 10:27:05,488 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-12 10:27:05,489 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-12 10:27:05,489 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-12 10:27:05,489 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-12 10:27:05,489 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-12 10:27:05,489 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-12 10:27:05,489 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-12 10:27:05,490 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-12 10:27:05,490 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-12 10:27:05,490 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 10:27:05,490 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-12 10:27:05,490 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-12 10:27:05,491 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-12 10:27:05,491 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-12 10:27:05,491 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-12 10:27:05,491 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-12 10:27:05,492 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-12 10:27:05,492 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-12 10:27:05,492 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0e7e1d85f63f5db62c0766d87dec12398108cf8053838b2df867ce8148d55e54 [2022-07-12 10:27:05,705 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-12 10:27:05,718 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-12 10:27:05,720 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-12 10:27:05,721 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-12 10:27:05,722 INFO L275 PluginConnector]: CDTParser initialized [2022-07-12 10:27:05,723 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/parallel-min-max-1.wvr.c [2022-07-12 10:27:05,769 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/358bcfdf0/6edd5a2c1eac40a4b2b9d308aebf48f1/FLAG7f11e341b [2022-07-12 10:27:06,176 INFO L306 CDTParser]: Found 1 translation units. [2022-07-12 10:27:06,176 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/parallel-min-max-1.wvr.c [2022-07-12 10:27:06,182 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/358bcfdf0/6edd5a2c1eac40a4b2b9d308aebf48f1/FLAG7f11e341b [2022-07-12 10:27:06,194 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/358bcfdf0/6edd5a2c1eac40a4b2b9d308aebf48f1 [2022-07-12 10:27:06,196 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-12 10:27:06,199 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-12 10:27:06,200 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-12 10:27:06,200 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-12 10:27:06,202 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-12 10:27:06,203 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 10:27:06" (1/1) ... [2022-07-12 10:27:06,204 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@55c42b3f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 10:27:06, skipping insertion in model container [2022-07-12 10:27:06,204 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 10:27:06" (1/1) ... [2022-07-12 10:27:06,215 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-12 10:27:06,234 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-12 10:27:06,384 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/parallel-min-max-1.wvr.c[3057,3070] [2022-07-12 10:27:06,391 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 10:27:06,396 INFO L203 MainTranslator]: Completed pre-run [2022-07-12 10:27:06,415 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/parallel-min-max-1.wvr.c[3057,3070] [2022-07-12 10:27:06,417 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 10:27:06,426 INFO L208 MainTranslator]: Completed translation [2022-07-12 10:27:06,427 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 10:27:06 WrapperNode [2022-07-12 10:27:06,427 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-12 10:27:06,428 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-12 10:27:06,428 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-12 10:27:06,428 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-12 10:27:06,432 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 10:27:06" (1/1) ... [2022-07-12 10:27:06,439 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 10:27:06" (1/1) ... [2022-07-12 10:27:06,456 INFO L137 Inliner]: procedures = 25, calls = 53, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 122 [2022-07-12 10:27:06,457 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-12 10:27:06,457 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-12 10:27:06,457 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-12 10:27:06,457 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-12 10:27:06,463 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 10:27:06" (1/1) ... [2022-07-12 10:27:06,463 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 10:27:06" (1/1) ... [2022-07-12 10:27:06,466 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 10:27:06" (1/1) ... [2022-07-12 10:27:06,466 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 10:27:06" (1/1) ... [2022-07-12 10:27:06,471 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 10:27:06" (1/1) ... [2022-07-12 10:27:06,474 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 10:27:06" (1/1) ... [2022-07-12 10:27:06,477 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 10:27:06" (1/1) ... [2022-07-12 10:27:06,484 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-12 10:27:06,497 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-12 10:27:06,497 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-12 10:27:06,497 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-12 10:27:06,498 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 10:27:06" (1/1) ... [2022-07-12 10:27:06,505 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 10:27:06,514 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 10:27:06,524 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) [2022-07-12 10:27:06,529 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 [2022-07-12 10:27:06,552 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-12 10:27:06,552 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-12 10:27:06,553 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-12 10:27:06,553 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-12 10:27:06,553 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-07-12 10:27:06,553 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-07-12 10:27:06,553 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-07-12 10:27:06,554 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-07-12 10:27:06,554 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-07-12 10:27:06,554 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-07-12 10:27:06,554 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-12 10:27:06,554 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-07-12 10:27:06,554 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-07-12 10:27:06,554 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-12 10:27:06,554 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-12 10:27:06,555 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-12 10:27:06,555 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-12 10:27:06,556 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-07-12 10:27:06,642 INFO L234 CfgBuilder]: Building ICFG [2022-07-12 10:27:06,643 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-12 10:27:06,939 INFO L275 CfgBuilder]: Performing block encoding [2022-07-12 10:27:06,991 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-12 10:27:06,992 INFO L299 CfgBuilder]: Removed 3 assume(true) statements. [2022-07-12 10:27:06,993 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 10:27:06 BoogieIcfgContainer [2022-07-12 10:27:06,994 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-12 10:27:06,995 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-12 10:27:06,995 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-12 10:27:06,997 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-12 10:27:06,998 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.07 10:27:06" (1/3) ... [2022-07-12 10:27:06,998 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13899ab6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 10:27:06, skipping insertion in model container [2022-07-12 10:27:06,998 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 10:27:06" (2/3) ... [2022-07-12 10:27:06,999 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13899ab6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 10:27:06, skipping insertion in model container [2022-07-12 10:27:06,999 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 10:27:06" (3/3) ... [2022-07-12 10:27:07,000 INFO L111 eAbstractionObserver]: Analyzing ICFG parallel-min-max-1.wvr.c [2022-07-12 10:27:07,007 WARN L143 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-07-12 10:27:07,014 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-12 10:27:07,014 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-12 10:27:07,014 INFO L509 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-07-12 10:27:07,078 INFO L135 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-07-12 10:27:07,112 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 174 places, 176 transitions, 376 flow [2022-07-12 10:27:07,169 INFO L129 PetriNetUnfolder]: 12/173 cut-off events. [2022-07-12 10:27:07,170 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-07-12 10:27:07,173 INFO L84 FinitePrefix]: Finished finitePrefix Result has 186 conditions, 173 events. 12/173 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 101 event pairs, 0 based on Foata normal form. 0/160 useless extension candidates. Maximal degree in co-relation 142. Up to 2 conditions per place. [2022-07-12 10:27:07,173 INFO L82 GeneralOperation]: Start removeDead. Operand has 174 places, 176 transitions, 376 flow [2022-07-12 10:27:07,178 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 160 places, 162 transitions, 342 flow [2022-07-12 10:27:07,190 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-12 10:27:07,195 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@1e34706c, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@6c88bce0 [2022-07-12 10:27:07,195 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-07-12 10:27:07,220 INFO L129 PetriNetUnfolder]: 12/161 cut-off events. [2022-07-12 10:27:07,221 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-07-12 10:27:07,221 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-12 10:27:07,222 INFO L200 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 10:27:07,222 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)] === [2022-07-12 10:27:07,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 10:27:07,228 INFO L85 PathProgramCache]: Analyzing trace with hash 1201893929, now seen corresponding path program 1 times [2022-07-12 10:27:07,234 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 10:27:07,235 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1282478629] [2022-07-12 10:27:07,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 10:27:07,236 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 10:27:07,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 10:27:07,671 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 10:27:07,673 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 10:27:07,673 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1282478629] [2022-07-12 10:27:07,674 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1282478629] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 10:27:07,675 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 10:27:07,675 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-12 10:27:07,676 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1024133372] [2022-07-12 10:27:07,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 10:27:07,684 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-12 10:27:07,685 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 10:27:07,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-12 10:27:07,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2022-07-12 10:27:07,720 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 176 [2022-07-12 10:27:07,727 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 160 places, 162 transitions, 342 flow. Second operand has 8 states, 8 states have (on average 120.75) internal successors, (966), 8 states have internal predecessors, (966), 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) [2022-07-12 10:27:07,727 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-12 10:27:07,727 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 176 [2022-07-12 10:27:07,728 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-12 10:27:07,921 INFO L129 PetriNetUnfolder]: 80/356 cut-off events. [2022-07-12 10:27:07,922 INFO L130 PetriNetUnfolder]: For 52/52 co-relation queries the response was YES. [2022-07-12 10:27:07,925 INFO L84 FinitePrefix]: Finished finitePrefix Result has 597 conditions, 356 events. 80/356 cut-off events. For 52/52 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 1249 event pairs, 64 based on Foata normal form. 5/313 useless extension candidates. Maximal degree in co-relation 395. Up to 154 conditions per place. [2022-07-12 10:27:07,929 INFO L132 encePairwiseOnDemand]: 160/176 looper letters, 43 selfloop transitions, 7 changer transitions 5/158 dead transitions. [2022-07-12 10:27:07,929 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 167 places, 158 transitions, 444 flow [2022-07-12 10:27:07,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-12 10:27:07,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-07-12 10:27:07,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 993 transitions. [2022-07-12 10:27:07,945 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.7052556818181818 [2022-07-12 10:27:07,945 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 993 transitions. [2022-07-12 10:27:07,946 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 993 transitions. [2022-07-12 10:27:07,947 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-12 10:27:07,949 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 993 transitions. [2022-07-12 10:27:07,953 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 124.125) internal successors, (993), 8 states have internal predecessors, (993), 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) [2022-07-12 10:27:07,961 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 176.0) internal successors, (1584), 9 states have internal predecessors, (1584), 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) [2022-07-12 10:27:07,961 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 176.0) internal successors, (1584), 9 states have internal predecessors, (1584), 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) [2022-07-12 10:27:07,963 INFO L186 Difference]: Start difference. First operand has 160 places, 162 transitions, 342 flow. Second operand 8 states and 993 transitions. [2022-07-12 10:27:07,963 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 167 places, 158 transitions, 444 flow [2022-07-12 10:27:07,966 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 161 places, 158 transitions, 432 flow, removed 0 selfloop flow, removed 6 redundant places. [2022-07-12 10:27:07,979 INFO L242 Difference]: Finished difference. Result has 162 places, 150 transitions, 326 flow [2022-07-12 10:27:07,980 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=176, PETRI_DIFFERENCE_MINUEND_FLOW=314, PETRI_DIFFERENCE_MINUEND_PLACES=154, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=154, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=147, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=326, PETRI_PLACES=162, PETRI_TRANSITIONS=150} [2022-07-12 10:27:07,984 INFO L279 CegarLoopForPetriNet]: 160 programPoint places, 2 predicate places. [2022-07-12 10:27:07,984 INFO L495 AbstractCegarLoop]: Abstraction has has 162 places, 150 transitions, 326 flow [2022-07-12 10:27:07,985 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 120.75) internal successors, (966), 8 states have internal predecessors, (966), 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) [2022-07-12 10:27:07,985 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-12 10:27:07,986 INFO L200 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 10:27:07,986 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-12 10:27:07,986 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)] === [2022-07-12 10:27:07,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 10:27:07,987 INFO L85 PathProgramCache]: Analyzing trace with hash -1093274316, now seen corresponding path program 1 times [2022-07-12 10:27:07,987 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 10:27:07,988 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [160657546] [2022-07-12 10:27:07,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 10:27:07,988 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 10:27:08,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 10:27:08,188 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 10:27:08,188 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 10:27:08,189 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [160657546] [2022-07-12 10:27:08,189 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [160657546] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-12 10:27:08,191 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [72047478] [2022-07-12 10:27:08,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 10:27:08,192 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 10:27:08,192 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 10:27:08,196 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) [2022-07-12 10:27:08,197 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-12 10:27:08,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 10:27:08,301 INFO L263 TraceCheckSpWp]: Trace formula consists of 307 conjuncts, 6 conjunts are in the unsatisfiable core [2022-07-12 10:27:08,311 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 10:27:08,474 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 10:27:08,474 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-12 10:27:08,629 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 10:27:08,630 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [72047478] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-12 10:27:08,630 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-07-12 10:27:08,630 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [8, 7] total 14 [2022-07-12 10:27:08,631 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1011814756] [2022-07-12 10:27:08,631 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 10:27:08,632 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-12 10:27:08,632 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 10:27:08,633 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-12 10:27:08,634 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2022-07-12 10:27:08,636 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 135 out of 176 [2022-07-12 10:27:08,637 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 162 places, 150 transitions, 326 flow. Second operand has 7 states, 7 states have (on average 138.71428571428572) internal successors, (971), 7 states have internal predecessors, (971), 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) [2022-07-12 10:27:08,637 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-12 10:27:08,637 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 135 of 176 [2022-07-12 10:27:08,637 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-12 10:27:08,760 INFO L129 PetriNetUnfolder]: 134/508 cut-off events. [2022-07-12 10:27:08,760 INFO L130 PetriNetUnfolder]: For 13/13 co-relation queries the response was YES. [2022-07-12 10:27:08,761 INFO L84 FinitePrefix]: Finished finitePrefix Result has 802 conditions, 508 events. 134/508 cut-off events. For 13/13 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 2222 event pairs, 85 based on Foata normal form. 0/456 useless extension candidates. Maximal degree in co-relation 706. Up to 111 conditions per place. [2022-07-12 10:27:08,762 INFO L132 encePairwiseOnDemand]: 168/176 looper letters, 34 selfloop transitions, 7 changer transitions 0/158 dead transitions. [2022-07-12 10:27:08,762 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 163 places, 158 transitions, 426 flow [2022-07-12 10:27:08,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-12 10:27:08,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-07-12 10:27:08,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 986 transitions. [2022-07-12 10:27:08,764 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.8003246753246753 [2022-07-12 10:27:08,765 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 986 transitions. [2022-07-12 10:27:08,765 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 986 transitions. [2022-07-12 10:27:08,765 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-12 10:27:08,765 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 986 transitions. [2022-07-12 10:27:08,767 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 140.85714285714286) internal successors, (986), 7 states have internal predecessors, (986), 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) [2022-07-12 10:27:08,768 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 176.0) internal successors, (1408), 8 states have internal predecessors, (1408), 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) [2022-07-12 10:27:08,769 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 176.0) internal successors, (1408), 8 states have internal predecessors, (1408), 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) [2022-07-12 10:27:08,769 INFO L186 Difference]: Start difference. First operand has 162 places, 150 transitions, 326 flow. Second operand 7 states and 986 transitions. [2022-07-12 10:27:08,769 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 163 places, 158 transitions, 426 flow [2022-07-12 10:27:08,770 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 157 places, 158 transitions, 414 flow, removed 0 selfloop flow, removed 6 redundant places. [2022-07-12 10:27:08,772 INFO L242 Difference]: Finished difference. Result has 160 places, 152 transitions, 347 flow [2022-07-12 10:27:08,772 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=176, PETRI_DIFFERENCE_MINUEND_FLOW=314, PETRI_DIFFERENCE_MINUEND_PLACES=151, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=150, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=143, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=347, PETRI_PLACES=160, PETRI_TRANSITIONS=152} [2022-07-12 10:27:08,773 INFO L279 CegarLoopForPetriNet]: 160 programPoint places, 0 predicate places. [2022-07-12 10:27:08,773 INFO L495 AbstractCegarLoop]: Abstraction has has 160 places, 152 transitions, 347 flow [2022-07-12 10:27:08,774 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 138.71428571428572) internal successors, (971), 7 states have internal predecessors, (971), 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) [2022-07-12 10:27:08,774 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-12 10:27:08,774 INFO L200 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 10:27:08,801 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-07-12 10:27:08,987 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 10:27:08,988 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)] === [2022-07-12 10:27:08,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 10:27:08,988 INFO L85 PathProgramCache]: Analyzing trace with hash 6752642, now seen corresponding path program 1 times [2022-07-12 10:27:08,988 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 10:27:08,989 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [634208128] [2022-07-12 10:27:08,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 10:27:08,989 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 10:27:09,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 10:27:09,093 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-07-12 10:27:09,094 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 10:27:09,094 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [634208128] [2022-07-12 10:27:09,094 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [634208128] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-12 10:27:09,094 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1550827150] [2022-07-12 10:27:09,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 10:27:09,094 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 10:27:09,095 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 10:27:09,096 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-12 10:27:09,097 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-07-12 10:27:09,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 10:27:09,185 INFO L263 TraceCheckSpWp]: Trace formula consists of 314 conjuncts, 6 conjunts are in the unsatisfiable core [2022-07-12 10:27:09,188 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 10:27:09,281 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-07-12 10:27:09,281 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-12 10:27:09,420 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-07-12 10:27:09,420 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1550827150] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-12 10:27:09,421 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-07-12 10:27:09,421 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [8, 7] total 14 [2022-07-12 10:27:09,421 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1039758494] [2022-07-12 10:27:09,421 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 10:27:09,422 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-12 10:27:09,422 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 10:27:09,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-12 10:27:09,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2022-07-12 10:27:09,428 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 135 out of 176 [2022-07-12 10:27:09,429 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 160 places, 152 transitions, 347 flow. Second operand has 7 states, 7 states have (on average 139.0) internal successors, (973), 7 states have internal predecessors, (973), 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) [2022-07-12 10:27:09,429 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-12 10:27:09,429 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 135 of 176 [2022-07-12 10:27:09,429 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-12 10:27:09,542 INFO L129 PetriNetUnfolder]: 136/494 cut-off events. [2022-07-12 10:27:09,543 INFO L130 PetriNetUnfolder]: For 105/141 co-relation queries the response was YES. [2022-07-12 10:27:09,544 INFO L84 FinitePrefix]: Finished finitePrefix Result has 885 conditions, 494 events. 136/494 cut-off events. For 105/141 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 2093 event pairs, 57 based on Foata normal form. 36/498 useless extension candidates. Maximal degree in co-relation 784. Up to 119 conditions per place. [2022-07-12 10:27:09,547 INFO L132 encePairwiseOnDemand]: 168/176 looper letters, 36 selfloop transitions, 7 changer transitions 0/160 dead transitions. [2022-07-12 10:27:09,547 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 166 places, 160 transitions, 459 flow [2022-07-12 10:27:09,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-12 10:27:09,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-07-12 10:27:09,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 986 transitions. [2022-07-12 10:27:09,550 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.8003246753246753 [2022-07-12 10:27:09,550 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 986 transitions. [2022-07-12 10:27:09,550 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 986 transitions. [2022-07-12 10:27:09,551 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-12 10:27:09,551 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 986 transitions. [2022-07-12 10:27:09,552 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 140.85714285714286) internal successors, (986), 7 states have internal predecessors, (986), 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) [2022-07-12 10:27:09,554 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 176.0) internal successors, (1408), 8 states have internal predecessors, (1408), 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) [2022-07-12 10:27:09,556 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 176.0) internal successors, (1408), 8 states have internal predecessors, (1408), 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) [2022-07-12 10:27:09,556 INFO L186 Difference]: Start difference. First operand has 160 places, 152 transitions, 347 flow. Second operand 7 states and 986 transitions. [2022-07-12 10:27:09,556 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 166 places, 160 transitions, 459 flow [2022-07-12 10:27:09,559 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 162 places, 160 transitions, 450 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-07-12 10:27:09,561 INFO L242 Difference]: Finished difference. Result has 164 places, 153 transitions, 366 flow [2022-07-12 10:27:09,561 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=176, PETRI_DIFFERENCE_MINUEND_FLOW=339, PETRI_DIFFERENCE_MINUEND_PLACES=156, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=152, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=145, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=366, PETRI_PLACES=164, PETRI_TRANSITIONS=153} [2022-07-12 10:27:09,563 INFO L279 CegarLoopForPetriNet]: 160 programPoint places, 4 predicate places. [2022-07-12 10:27:09,563 INFO L495 AbstractCegarLoop]: Abstraction has has 164 places, 153 transitions, 366 flow [2022-07-12 10:27:09,563 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 139.0) internal successors, (973), 7 states have internal predecessors, (973), 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) [2022-07-12 10:27:09,563 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-12 10:27:09,564 INFO L200 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 10:27:09,585 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-07-12 10:27:09,783 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2022-07-12 10:27:09,784 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)] === [2022-07-12 10:27:09,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 10:27:09,784 INFO L85 PathProgramCache]: Analyzing trace with hash 1616648338, now seen corresponding path program 1 times [2022-07-12 10:27:09,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 10:27:09,784 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1770779894] [2022-07-12 10:27:09,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 10:27:09,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 10:27:09,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 10:27:09,876 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-07-12 10:27:09,877 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 10:27:09,877 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1770779894] [2022-07-12 10:27:09,877 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1770779894] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 10:27:09,877 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 10:27:09,877 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-12 10:27:09,877 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [55966115] [2022-07-12 10:27:09,878 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 10:27:09,879 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 10:27:09,879 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 10:27:09,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 10:27:09,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-12 10:27:09,881 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 176 [2022-07-12 10:27:09,881 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 164 places, 153 transitions, 366 flow. Second operand has 5 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) [2022-07-12 10:27:09,881 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-12 10:27:09,882 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 176 [2022-07-12 10:27:09,882 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-12 10:27:10,004 INFO L129 PetriNetUnfolder]: 94/428 cut-off events. [2022-07-12 10:27:10,005 INFO L130 PetriNetUnfolder]: For 42/42 co-relation queries the response was YES. [2022-07-12 10:27:10,006 INFO L84 FinitePrefix]: Finished finitePrefix Result has 728 conditions, 428 events. 94/428 cut-off events. For 42/42 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 1549 event pairs, 45 based on Foata normal form. 1/399 useless extension candidates. Maximal degree in co-relation 619. Up to 137 conditions per place. [2022-07-12 10:27:10,008 INFO L132 encePairwiseOnDemand]: 169/176 looper letters, 48 selfloop transitions, 3 changer transitions 4/163 dead transitions. [2022-07-12 10:27:10,008 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 168 places, 163 transitions, 498 flow [2022-07-12 10:27:10,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-12 10:27:10,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-07-12 10:27:10,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 641 transitions. [2022-07-12 10:27:10,009 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.7284090909090909 [2022-07-12 10:27:10,009 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 641 transitions. [2022-07-12 10:27:10,010 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 641 transitions. [2022-07-12 10:27:10,010 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-12 10:27:10,010 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 641 transitions. [2022-07-12 10:27:10,011 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 128.2) internal successors, (641), 5 states have internal predecessors, (641), 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) [2022-07-12 10:27:10,012 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 176.0) internal successors, (1056), 6 states have internal predecessors, (1056), 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) [2022-07-12 10:27:10,013 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 176.0) internal successors, (1056), 6 states have internal predecessors, (1056), 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) [2022-07-12 10:27:10,013 INFO L186 Difference]: Start difference. First operand has 164 places, 153 transitions, 366 flow. Second operand 5 states and 641 transitions. [2022-07-12 10:27:10,013 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 168 places, 163 transitions, 498 flow [2022-07-12 10:27:10,016 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 163 places, 163 transitions, 488 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-07-12 10:27:10,017 INFO L242 Difference]: Finished difference. Result has 167 places, 155 transitions, 384 flow [2022-07-12 10:27:10,018 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=176, PETRI_DIFFERENCE_MINUEND_FLOW=356, PETRI_DIFFERENCE_MINUEND_PLACES=159, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=153, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=150, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=384, PETRI_PLACES=167, PETRI_TRANSITIONS=155} [2022-07-12 10:27:10,018 INFO L279 CegarLoopForPetriNet]: 160 programPoint places, 7 predicate places. [2022-07-12 10:27:10,019 INFO L495 AbstractCegarLoop]: Abstraction has has 167 places, 155 transitions, 384 flow [2022-07-12 10:27:10,019 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 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) [2022-07-12 10:27:10,019 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-12 10:27:10,019 INFO L200 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 10:27:10,019 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-12 10:27:10,020 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)] === [2022-07-12 10:27:10,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 10:27:10,020 INFO L85 PathProgramCache]: Analyzing trace with hash -1309242489, now seen corresponding path program 1 times [2022-07-12 10:27:10,020 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 10:27:10,020 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [599662330] [2022-07-12 10:27:10,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 10:27:10,020 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 10:27:10,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 10:27:10,330 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-07-12 10:27:10,330 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 10:27:10,330 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [599662330] [2022-07-12 10:27:10,330 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [599662330] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-12 10:27:10,331 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [824195820] [2022-07-12 10:27:10,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 10:27:10,331 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 10:27:10,331 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 10:27:10,332 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-12 10:27:10,333 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-07-12 10:27:10,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 10:27:10,418 INFO L263 TraceCheckSpWp]: Trace formula consists of 324 conjuncts, 44 conjunts are in the unsatisfiable core [2022-07-12 10:27:10,422 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 10:27:10,726 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-07-12 10:27:10,933 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 [2022-07-12 10:27:11,034 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-12 10:27:11,035 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-07-12 10:27:11,105 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-12 10:27:11,106 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-07-12 10:27:11,292 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 15 treesize of output 7 [2022-07-12 10:27:11,343 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 10:27:11,343 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-12 10:27:11,570 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-07-12 10:27:11,570 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [824195820] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-12 10:27:11,570 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-07-12 10:27:11,571 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [16, 23] total 39 [2022-07-12 10:27:11,571 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1211114982] [2022-07-12 10:27:11,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 10:27:11,571 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-12 10:27:11,571 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 10:27:11,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-12 10:27:11,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=135, Invalid=1347, Unknown=0, NotChecked=0, Total=1482 [2022-07-12 10:27:11,573 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 101 out of 176 [2022-07-12 10:27:11,574 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 167 places, 155 transitions, 384 flow. Second operand has 10 states, 10 states have (on average 107.1) internal successors, (1071), 10 states have internal predecessors, (1071), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:27:11,575 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-12 10:27:11,575 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 101 of 176 [2022-07-12 10:27:11,575 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-12 10:27:12,628 INFO L129 PetriNetUnfolder]: 3759/7565 cut-off events. [2022-07-12 10:27:12,628 INFO L130 PetriNetUnfolder]: For 4577/4579 co-relation queries the response was YES. [2022-07-12 10:27:12,647 INFO L84 FinitePrefix]: Finished finitePrefix Result has 17439 conditions, 7565 events. 3759/7565 cut-off events. For 4577/4579 co-relation queries the response was YES. Maximal size of possible extension queue 455. Compared 61607 event pairs, 502 based on Foata normal form. 3/7341 useless extension candidates. Maximal degree in co-relation 17327. Up to 1402 conditions per place. [2022-07-12 10:27:12,669 INFO L132 encePairwiseOnDemand]: 164/176 looper letters, 149 selfloop transitions, 11 changer transitions 83/334 dead transitions. [2022-07-12 10:27:12,669 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 179 places, 334 transitions, 1465 flow [2022-07-12 10:27:12,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-12 10:27:12,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2022-07-12 10:27:12,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1740 transitions. [2022-07-12 10:27:12,673 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.6590909090909091 [2022-07-12 10:27:12,673 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 1740 transitions. [2022-07-12 10:27:12,673 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 1740 transitions. [2022-07-12 10:27:12,674 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-12 10:27:12,674 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 1740 transitions. [2022-07-12 10:27:12,677 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 116.0) internal successors, (1740), 15 states have internal predecessors, (1740), 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) [2022-07-12 10:27:12,680 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 176.0) internal successors, (2816), 16 states have internal predecessors, (2816), 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) [2022-07-12 10:27:12,681 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 176.0) internal successors, (2816), 16 states have internal predecessors, (2816), 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) [2022-07-12 10:27:12,681 INFO L186 Difference]: Start difference. First operand has 167 places, 155 transitions, 384 flow. Second operand 15 states and 1740 transitions. [2022-07-12 10:27:12,681 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 179 places, 334 transitions, 1465 flow [2022-07-12 10:27:12,704 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 176 places, 334 transitions, 1453 flow, removed 3 selfloop flow, removed 3 redundant places. [2022-07-12 10:27:12,707 INFO L242 Difference]: Finished difference. Result has 190 places, 165 transitions, 489 flow [2022-07-12 10:27:12,708 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=176, PETRI_DIFFERENCE_MINUEND_FLOW=375, PETRI_DIFFERENCE_MINUEND_PLACES=162, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=155, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=147, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=489, PETRI_PLACES=190, PETRI_TRANSITIONS=165} [2022-07-12 10:27:12,708 INFO L279 CegarLoopForPetriNet]: 160 programPoint places, 30 predicate places. [2022-07-12 10:27:12,708 INFO L495 AbstractCegarLoop]: Abstraction has has 190 places, 165 transitions, 489 flow [2022-07-12 10:27:12,709 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 107.1) internal successors, (1071), 10 states have internal predecessors, (1071), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:27:12,709 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-12 10:27:12,709 INFO L200 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 10:27:12,728 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-07-12 10:27:12,923 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 10:27:12,924 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)] === [2022-07-12 10:27:12,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 10:27:12,924 INFO L85 PathProgramCache]: Analyzing trace with hash 1173872667, now seen corresponding path program 2 times [2022-07-12 10:27:12,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 10:27:12,925 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1018004060] [2022-07-12 10:27:12,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 10:27:12,925 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 10:27:12,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 10:27:13,120 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-07-12 10:27:13,120 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 10:27:13,120 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1018004060] [2022-07-12 10:27:13,121 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1018004060] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-12 10:27:13,121 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [684419369] [2022-07-12 10:27:13,121 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-12 10:27:13,121 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 10:27:13,121 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 10:27:13,122 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-12 10:27:13,123 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-07-12 10:27:13,310 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-07-12 10:27:13,310 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-12 10:27:13,311 INFO L263 TraceCheckSpWp]: Trace formula consists of 324 conjuncts, 18 conjunts are in the unsatisfiable core [2022-07-12 10:27:13,314 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 10:27:13,622 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-12 10:27:13,623 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-07-12 10:27:13,689 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-12 10:27:13,690 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 55 treesize of output 63 [2022-07-12 10:27:13,750 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-07-12 10:27:13,750 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-12 10:27:13,989 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_164 (Array Int Int))) (<= c_~min~0 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_164) c_~A~0.base) c_~A~0.offset))) is different from false [2022-07-12 10:27:14,060 WARN L833 $PredicateComparison]: unable to prove that (and (forall ((thread1Thread1of1ForFork0_~i~0 Int) (v_ArrVal_164 (Array Int Int))) (let ((.cse0 (select (select |c_#memory_int| c_~A~0.base) (+ c_~A~0.offset (* thread1Thread1of1ForFork0_~i~0 4))))) (or (< c_~min~0 .cse0) (<= .cse0 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_164) c_~A~0.base) c_~A~0.offset))))) (or (forall ((v_ArrVal_164 (Array Int Int))) (<= c_~min~0 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_164) c_~A~0.base) c_~A~0.offset))) (forall ((thread1Thread1of1ForFork0_~i~0 Int)) (not (< c_~min~0 (select (select |c_#memory_int| c_~A~0.base) (+ c_~A~0.offset (* thread1Thread1of1ForFork0_~i~0 4)))))))) is different from false [2022-07-12 10:27:14,122 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-12 10:27:14,122 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 93 treesize of output 89 [2022-07-12 10:27:14,128 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-07-12 10:27:14,137 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-07-12 10:27:14,332 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 1 not checked. [2022-07-12 10:27:14,332 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [684419369] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-12 10:27:14,332 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-12 10:27:14,332 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 15, 16] total 34 [2022-07-12 10:27:14,332 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [932304304] [2022-07-12 10:27:14,332 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-12 10:27:14,333 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-07-12 10:27:14,333 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 10:27:14,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-07-12 10:27:14,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=901, Unknown=2, NotChecked=122, Total=1122 [2022-07-12 10:27:14,336 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 176 [2022-07-12 10:27:14,338 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 190 places, 165 transitions, 489 flow. Second operand has 34 states, 34 states have (on average 89.97058823529412) internal successors, (3059), 34 states have internal predecessors, (3059), 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) [2022-07-12 10:27:14,338 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-12 10:27:14,338 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 176 [2022-07-12 10:27:14,338 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-12 10:27:15,342 INFO L129 PetriNetUnfolder]: 1281/4211 cut-off events. [2022-07-12 10:27:15,342 INFO L130 PetriNetUnfolder]: For 6143/6586 co-relation queries the response was YES. [2022-07-12 10:27:15,357 INFO L84 FinitePrefix]: Finished finitePrefix Result has 10855 conditions, 4211 events. 1281/4211 cut-off events. For 6143/6586 co-relation queries the response was YES. Maximal size of possible extension queue 292. Compared 39608 event pairs, 311 based on Foata normal form. 111/4133 useless extension candidates. Maximal degree in co-relation 10778. Up to 635 conditions per place. [2022-07-12 10:27:15,401 INFO L132 encePairwiseOnDemand]: 158/176 looper letters, 121 selfloop transitions, 21 changer transitions 31/254 dead transitions. [2022-07-12 10:27:15,401 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 201 places, 254 transitions, 1260 flow [2022-07-12 10:27:15,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-07-12 10:27:15,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-07-12 10:27:15,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 1845 transitions. [2022-07-12 10:27:15,406 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.5241477272727273 [2022-07-12 10:27:15,406 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 1845 transitions. [2022-07-12 10:27:15,406 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 1845 transitions. [2022-07-12 10:27:15,407 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-12 10:27:15,407 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 1845 transitions. [2022-07-12 10:27:15,410 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 92.25) internal successors, (1845), 20 states have internal predecessors, (1845), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:27:15,414 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 176.0) internal successors, (3696), 21 states have internal predecessors, (3696), 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) [2022-07-12 10:27:15,415 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 176.0) internal successors, (3696), 21 states have internal predecessors, (3696), 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) [2022-07-12 10:27:15,415 INFO L186 Difference]: Start difference. First operand has 190 places, 165 transitions, 489 flow. Second operand 20 states and 1845 transitions. [2022-07-12 10:27:15,415 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 201 places, 254 transitions, 1260 flow [2022-07-12 10:27:15,430 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 194 places, 254 transitions, 1200 flow, removed 30 selfloop flow, removed 7 redundant places. [2022-07-12 10:27:15,433 INFO L242 Difference]: Finished difference. Result has 201 places, 173 transitions, 597 flow [2022-07-12 10:27:15,433 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=176, PETRI_DIFFERENCE_MINUEND_FLOW=473, PETRI_DIFFERENCE_MINUEND_PLACES=175, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=165, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=149, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=597, PETRI_PLACES=201, PETRI_TRANSITIONS=173} [2022-07-12 10:27:15,434 INFO L279 CegarLoopForPetriNet]: 160 programPoint places, 41 predicate places. [2022-07-12 10:27:15,434 INFO L495 AbstractCegarLoop]: Abstraction has has 201 places, 173 transitions, 597 flow [2022-07-12 10:27:15,435 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 89.97058823529412) internal successors, (3059), 34 states have internal predecessors, (3059), 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) [2022-07-12 10:27:15,435 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-12 10:27:15,436 INFO L200 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 10:27:15,456 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-07-12 10:27:15,645 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 10:27:15,646 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)] === [2022-07-12 10:27:15,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 10:27:15,646 INFO L85 PathProgramCache]: Analyzing trace with hash 2123503417, now seen corresponding path program 3 times [2022-07-12 10:27:15,646 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 10:27:15,646 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1041829707] [2022-07-12 10:27:15,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 10:27:15,647 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 10:27:15,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 10:27:15,740 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-07-12 10:27:15,740 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 10:27:15,740 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1041829707] [2022-07-12 10:27:15,741 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1041829707] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-12 10:27:15,741 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [537545579] [2022-07-12 10:27:15,741 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-07-12 10:27:15,741 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 10:27:15,741 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 10:27:15,742 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-12 10:27:15,743 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-07-12 10:27:15,838 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-07-12 10:27:15,838 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-12 10:27:15,840 INFO L263 TraceCheckSpWp]: Trace formula consists of 324 conjuncts, 43 conjunts are in the unsatisfiable core [2022-07-12 10:27:15,843 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 10:27:16,119 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-07-12 10:27:16,315 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 [2022-07-12 10:27:16,359 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 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 [2022-07-12 10:27:16,488 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-12 10:27:16,489 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 21 treesize of output 21 [2022-07-12 10:27:16,550 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 15 treesize of output 7 [2022-07-12 10:27:16,612 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-07-12 10:27:16,612 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-12 10:27:16,909 WARN L833 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_201 (Array Int Int))) (<= (select (select |c_#memory_int| c_~A~0.base) c_~A~0.offset) (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_201) c_~A~0.base) c_~A~0.offset) 1))) (forall ((v_ArrVal_201 (Array Int Int))) (<= (select (select |c_#memory_int| c_~A~0.base) c_~A~0.offset) (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_201) c_~A~0.base) c_~A~0.offset)))) is different from false [2022-07-12 10:27:16,920 WARN L833 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_201 (Array Int Int)) (v_ArrVal_200 (Array Int Int))) (let ((.cse0 (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_200))) (<= (select (select .cse0 c_~A~0.base) c_~A~0.offset) (+ (select (select (store .cse0 |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_201) c_~A~0.base) c_~A~0.offset) 1)))) (forall ((v_ArrVal_201 (Array Int Int)) (v_ArrVal_200 (Array Int Int))) (let ((.cse1 (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_200))) (<= (select (select .cse1 c_~A~0.base) c_~A~0.offset) (select (select (store .cse1 |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_201) c_~A~0.base) c_~A~0.offset))))) is different from false [2022-07-12 10:27:16,953 WARN L833 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_199 (Array Int Int)) (v_ArrVal_201 (Array Int Int)) (v_ArrVal_200 (Array Int Int))) (let ((.cse0 (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_199) |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_200))) (<= (select (select .cse0 c_~A~0.base) c_~A~0.offset) (+ (select (select (store .cse0 |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_201) c_~A~0.base) c_~A~0.offset) 1)))) (forall ((v_ArrVal_199 (Array Int Int)) (v_ArrVal_201 (Array Int Int)) (v_ArrVal_200 (Array Int Int))) (let ((.cse1 (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_199) |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_200))) (<= (select (select .cse1 c_~A~0.base) c_~A~0.offset) (select (select (store .cse1 |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_201) c_~A~0.base) c_~A~0.offset))))) is different from false [2022-07-12 10:27:17,022 WARN L833 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_199 (Array Int Int)) (v_ArrVal_201 (Array Int Int)) (v_ArrVal_200 (Array Int Int))) (let ((.cse0 (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_199) |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_200))) (<= (select (select .cse0 |c_ULTIMATE.start_main_#t~ret17#1.base|) |c_ULTIMATE.start_main_#t~ret17#1.offset|) (+ (select (select (store .cse0 |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_201) |c_ULTIMATE.start_main_#t~ret17#1.base|) |c_ULTIMATE.start_main_#t~ret17#1.offset|) 1)))) (forall ((v_ArrVal_199 (Array Int Int)) (v_ArrVal_201 (Array Int Int)) (v_ArrVal_200 (Array Int Int))) (let ((.cse1 (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_199) |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_200))) (<= (select (select .cse1 |c_ULTIMATE.start_main_#t~ret17#1.base|) |c_ULTIMATE.start_main_#t~ret17#1.offset|) (select (select (store .cse1 |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_201) |c_ULTIMATE.start_main_#t~ret17#1.base|) |c_ULTIMATE.start_main_#t~ret17#1.offset|))))) is different from false [2022-07-12 10:27:17,033 WARN L833 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_199 (Array Int Int)) (v_ArrVal_201 (Array Int Int)) (v_ArrVal_200 (Array Int Int))) (let ((.cse0 (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_199) |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_200))) (<= (select (select .cse0 |c_ULTIMATE.start_create_fresh_int_array_#res#1.base|) |c_ULTIMATE.start_create_fresh_int_array_#res#1.offset|) (+ (select (select (store .cse0 |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_201) |c_ULTIMATE.start_create_fresh_int_array_#res#1.base|) |c_ULTIMATE.start_create_fresh_int_array_#res#1.offset|) 1)))) (forall ((v_ArrVal_199 (Array Int Int)) (v_ArrVal_201 (Array Int Int)) (v_ArrVal_200 (Array Int Int))) (let ((.cse1 (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_199) |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_200))) (<= (select (select .cse1 |c_ULTIMATE.start_create_fresh_int_array_#res#1.base|) |c_ULTIMATE.start_create_fresh_int_array_#res#1.offset|) (select (select (store .cse1 |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_201) |c_ULTIMATE.start_create_fresh_int_array_#res#1.base|) |c_ULTIMATE.start_create_fresh_int_array_#res#1.offset|))))) is different from false [2022-07-12 10:27:17,040 WARN L833 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_199 (Array Int Int)) (v_ArrVal_201 (Array Int Int)) (v_ArrVal_200 (Array Int Int))) (let ((.cse0 (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_199) |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_200))) (<= (select (select .cse0 |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.base|) |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.offset|) (select (select (store .cse0 |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_201) |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.base|) |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.offset|)))) (forall ((v_ArrVal_199 (Array Int Int)) (v_ArrVal_201 (Array Int Int)) (v_ArrVal_200 (Array Int Int))) (let ((.cse1 (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_199) |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_200))) (<= (select (select .cse1 |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.base|) |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.offset|) (+ (select (select (store .cse1 |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_201) |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.base|) |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.offset|) 1))))) is different from false [2022-07-12 10:27:17,065 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-12 10:27:17,066 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 52 treesize of output 41 [2022-07-12 10:27:17,069 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 2226 treesize of output 2066 [2022-07-12 10:27:17,130 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 1790 treesize of output 1718 [2022-07-12 10:27:17,140 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 1718 treesize of output 1590 [2022-07-12 10:27:17,150 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 1590 treesize of output 1478