./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/weaver/popl20-commit-2.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version ae007674 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/weaver/popl20-commit-2.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 f484a00c18d1df7ceedc12992e35584262ebeacdaf88de41be4bc57f4fb5401d --- Real Ultimate output --- This is Ultimate 0.2.2-dev-ae00767 [2021-12-28 03:04:41,456 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-28 03:04:41,459 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-28 03:04:41,495 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-28 03:04:41,496 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-28 03:04:41,499 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-28 03:04:41,500 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-28 03:04:41,503 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-28 03:04:41,505 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-28 03:04:41,508 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-28 03:04:41,509 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-28 03:04:41,513 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-28 03:04:41,513 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-28 03:04:41,515 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-28 03:04:41,516 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-28 03:04:41,519 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-28 03:04:41,519 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-28 03:04:41,520 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-28 03:04:41,522 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-28 03:04:41,526 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-28 03:04:41,527 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-28 03:04:41,528 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-28 03:04:41,529 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-28 03:04:41,530 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-28 03:04:41,536 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-28 03:04:41,537 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-28 03:04:41,537 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-28 03:04:41,539 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-28 03:04:41,539 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-28 03:04:41,540 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-28 03:04:41,540 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-28 03:04:41,541 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-28 03:04:41,543 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-28 03:04:41,543 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-28 03:04:41,544 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-28 03:04:41,545 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-28 03:04:41,545 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-28 03:04:41,545 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-28 03:04:41,546 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-28 03:04:41,547 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-28 03:04:41,547 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-28 03:04:41,551 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-28 03:04:41,580 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-28 03:04:41,581 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-28 03:04:41,581 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-28 03:04:41,582 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-28 03:04:41,582 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-28 03:04:41,582 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-28 03:04:41,583 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-28 03:04:41,584 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-28 03:04:41,584 INFO L138 SettingsManager]: * Use SBE=true [2021-12-28 03:04:41,584 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-28 03:04:41,585 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-28 03:04:41,585 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-28 03:04:41,585 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-28 03:04:41,585 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-28 03:04:41,585 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-28 03:04:41,585 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-28 03:04:41,586 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-28 03:04:41,586 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-28 03:04:41,586 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-28 03:04:41,586 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-28 03:04:41,586 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-28 03:04:41,586 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-28 03:04:41,587 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-28 03:04:41,587 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-28 03:04:41,587 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-28 03:04:41,587 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-28 03:04:41,587 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-28 03:04:41,587 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-28 03:04:41,587 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-28 03:04:41,588 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-28 03:04:41,588 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-28 03:04:41,588 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-28 03:04:41,588 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-28 03:04:41,588 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f484a00c18d1df7ceedc12992e35584262ebeacdaf88de41be4bc57f4fb5401d [2021-12-28 03:04:41,839 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-28 03:04:41,860 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-28 03:04:41,863 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-28 03:04:41,864 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-28 03:04:41,864 INFO L275 PluginConnector]: CDTParser initialized [2021-12-28 03:04:41,865 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/popl20-commit-2.wvr.c [2021-12-28 03:04:41,919 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/61b55e697/09f77eab481b425fbe5b6f65367a277a/FLAG8d21b3f4b [2021-12-28 03:04:42,266 INFO L306 CDTParser]: Found 1 translation units. [2021-12-28 03:04:42,266 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/popl20-commit-2.wvr.c [2021-12-28 03:04:42,277 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/61b55e697/09f77eab481b425fbe5b6f65367a277a/FLAG8d21b3f4b [2021-12-28 03:04:42,286 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/61b55e697/09f77eab481b425fbe5b6f65367a277a [2021-12-28 03:04:42,288 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-28 03:04:42,289 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-28 03:04:42,290 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-28 03:04:42,290 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-28 03:04:42,293 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-28 03:04:42,293 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 03:04:42" (1/1) ... [2021-12-28 03:04:42,294 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@173b35d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:04:42, skipping insertion in model container [2021-12-28 03:04:42,294 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 03:04:42" (1/1) ... [2021-12-28 03:04:42,299 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-28 03:04:42,312 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-28 03:04:42,520 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/popl20-commit-2.wvr.c[5846,5859] [2021-12-28 03:04:42,533 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-28 03:04:42,540 INFO L203 MainTranslator]: Completed pre-run [2021-12-28 03:04:42,579 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/popl20-commit-2.wvr.c[5846,5859] [2021-12-28 03:04:42,587 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-28 03:04:42,598 INFO L208 MainTranslator]: Completed translation [2021-12-28 03:04:42,600 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:04:42 WrapperNode [2021-12-28 03:04:42,600 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-28 03:04:42,601 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-28 03:04:42,601 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-28 03:04:42,601 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-28 03:04:42,605 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:04:42" (1/1) ... [2021-12-28 03:04:42,628 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:04:42" (1/1) ... [2021-12-28 03:04:42,669 INFO L137 Inliner]: procedures = 26, calls = 93, calls flagged for inlining = 27, calls inlined = 33, statements flattened = 456 [2021-12-28 03:04:42,672 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-28 03:04:42,674 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-28 03:04:42,675 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-28 03:04:42,675 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-28 03:04:42,680 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:04:42" (1/1) ... [2021-12-28 03:04:42,681 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:04:42" (1/1) ... [2021-12-28 03:04:42,686 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:04:42" (1/1) ... [2021-12-28 03:04:42,688 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:04:42" (1/1) ... [2021-12-28 03:04:42,699 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:04:42" (1/1) ... [2021-12-28 03:04:42,715 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:04:42" (1/1) ... [2021-12-28 03:04:42,720 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:04:42" (1/1) ... [2021-12-28 03:04:42,723 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-28 03:04:42,729 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-28 03:04:42,730 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-28 03:04:42,730 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-28 03:04:42,730 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:04:42" (1/1) ... [2021-12-28 03:04:42,736 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-28 03:04:42,745 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 03:04:42,754 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) [2021-12-28 03:04:42,769 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 [2021-12-28 03:04:42,792 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-28 03:04:42,792 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-28 03:04:42,792 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-28 03:04:42,792 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-28 03:04:42,793 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-12-28 03:04:42,793 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-12-28 03:04:42,793 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-12-28 03:04:42,793 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-12-28 03:04:42,797 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-12-28 03:04:42,798 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-12-28 03:04:42,798 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2021-12-28 03:04:42,798 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2021-12-28 03:04:42,798 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-28 03:04:42,798 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-12-28 03:04:42,798 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-12-28 03:04:42,799 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-28 03:04:42,799 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-28 03:04:42,799 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-28 03:04:42,799 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-28 03:04:42,801 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-12-28 03:04:42,934 INFO L234 CfgBuilder]: Building ICFG [2021-12-28 03:04:42,935 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-28 03:04:43,392 INFO L275 CfgBuilder]: Performing block encoding [2021-12-28 03:04:43,623 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-28 03:04:43,623 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-12-28 03:04:43,626 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 03:04:43 BoogieIcfgContainer [2021-12-28 03:04:43,626 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-28 03:04:43,627 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-28 03:04:43,627 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-28 03:04:43,629 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-28 03:04:43,629 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.12 03:04:42" (1/3) ... [2021-12-28 03:04:43,630 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60b61445 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.12 03:04:43, skipping insertion in model container [2021-12-28 03:04:43,630 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:04:42" (2/3) ... [2021-12-28 03:04:43,630 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60b61445 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.12 03:04:43, skipping insertion in model container [2021-12-28 03:04:43,630 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 03:04:43" (3/3) ... [2021-12-28 03:04:43,631 INFO L111 eAbstractionObserver]: Analyzing ICFG popl20-commit-2.wvr.c [2021-12-28 03:04:43,635 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-12-28 03:04:43,635 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-28 03:04:43,635 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-28 03:04:43,635 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-12-28 03:04:43,686 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~nondet1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:04:43,687 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~nondet1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:04:43,687 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~nondet1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:04:43,687 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~nondet1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:04:43,687 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:04:43,687 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:04:43,688 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:04:43,688 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:04:43,688 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~nondet1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:04:43,688 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~nondet1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:04:43,689 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~nondet1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:04:43,689 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~nondet1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:04:43,689 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:04:43,689 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:04:43,689 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:04:43,690 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:04:43,690 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:04:43,690 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~short3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:04:43,691 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:04:43,691 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:04:43,691 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:04:43,692 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:04:43,692 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:04:43,692 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~short3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:04:43,693 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:04:43,693 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:04:43,693 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:04:43,693 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:04:43,693 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:04:43,693 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:04:43,694 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:04:43,694 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:04:43,694 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:04:43,694 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:04:43,694 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:04:43,694 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:04:43,695 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:04:43,695 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:04:43,695 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:04:43,695 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:04:43,695 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:04:43,696 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~short10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:04:43,696 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:04:43,696 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:04:43,696 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:04:43,696 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:04:43,697 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:04:43,697 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~short10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:04:43,697 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:04:43,698 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:04:43,698 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:04:43,698 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:04:43,698 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:04:43,699 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:04:43,699 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:04:43,699 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~short13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:04:43,699 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:04:43,700 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:04:43,700 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:04:43,700 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:04:43,700 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:04:43,700 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~short13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:04:43,701 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:04:43,701 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:04:43,701 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:04:43,702 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem15#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:04:43,702 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post16#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:04:43,702 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:04:43,702 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:04:43,702 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem15#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:04:43,702 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post16#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:04:43,702 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:04:43,703 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~nondet17#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:04:43,703 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~nondet17#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:04:43,703 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~nondet17#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:04:43,704 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~nondet17#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:04:43,704 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:04:43,706 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:04:43,706 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:04:43,707 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:04:43,707 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~nondet17#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:04:43,707 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~nondet17#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:04:43,707 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~nondet17#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:04:43,707 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~nondet17#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:04:43,708 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem18#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:04:43,708 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post20#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:04:43,711 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:04:43,711 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem18#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:04:43,711 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~short19#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:04:43,712 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:04:43,712 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem18#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:04:43,712 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post20#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:04:43,712 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:04:43,713 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem18#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:04:43,713 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~short19#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:04:43,713 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:04:43,714 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:04:43,714 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post22#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:04:43,714 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem21#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:04:43,714 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:04:43,715 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:04:43,715 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post22#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:04:43,715 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem21#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:04:43,715 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:04:43,715 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~nondet23#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:04:43,715 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~nondet23#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:04:43,716 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~nondet23#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:04:43,716 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~nondet23#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:04:43,716 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:04:43,716 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:04:43,716 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:04:43,716 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:04:43,716 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~nondet23#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:04:43,717 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~nondet23#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:04:43,717 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~nondet23#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:04:43,717 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~nondet23#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:04:43,717 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem24#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:04:43,717 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:04:43,717 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post26#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:04:43,717 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~short25#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:04:43,717 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem24#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:04:43,718 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:04:43,718 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem24#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:04:43,718 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:04:43,718 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post26#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:04:43,718 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~short25#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:04:43,718 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem24#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:04:43,719 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:04:43,720 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem27#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:04:43,720 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:04:43,720 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post28#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:04:43,721 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:04:43,721 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem27#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:04:43,721 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:04:43,721 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post28#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:04:43,721 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:04:43,721 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#t~nondet29#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:04:43,736 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#t~nondet29#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:04:43,736 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#t~nondet29#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:04:43,737 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#t~nondet29#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:04:43,737 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:04:43,737 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:04:43,737 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:04:43,737 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:04:43,737 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#t~nondet29#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:04:43,738 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#t~nondet29#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:04:43,738 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#t~nondet29#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:04:43,738 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#t~nondet29#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:04:43,738 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#t~post31#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:04:43,739 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:04:43,740 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#t~mem30#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:04:43,740 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:04:43,740 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#t~post31#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:04:43,741 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:04:43,741 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#t~mem30#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:04:43,741 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:04:43,741 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#t~mem32#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:04:43,741 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#t~mem32#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:04:43,741 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:04:43,741 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#t~post34#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:04:43,741 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#t~short33#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:04:43,742 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:04:43,743 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#t~mem32#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:04:43,743 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#t~mem32#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:04:43,743 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:04:43,743 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#t~post34#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:04:43,744 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#t~short33#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:04:43,744 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:04:43,746 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:04:43,746 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~short19#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:04:43,747 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:04:43,747 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem21#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:04:43,747 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:04:43,747 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~nondet17#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:04:43,747 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:04:43,747 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post22#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:04:43,748 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post20#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:04:43,748 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem18#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:04:43,748 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~nondet23#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:04:43,748 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:04:43,749 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post26#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:04:43,749 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:04:43,749 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:04:43,749 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:04:43,749 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~short25#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:04:43,749 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post28#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:04:43,750 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem24#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:04:43,750 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem27#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:04:43,750 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:04:43,751 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:04:43,751 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:04:43,751 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:04:43,751 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem15#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:04:43,751 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:04:43,751 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~short10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:04:43,751 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~short13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:04:43,752 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:04:43,752 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:04:43,752 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:04:43,752 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~nondet1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:04:43,752 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:04:43,752 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:04:43,752 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:04:43,753 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post16#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:04:43,756 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~short3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:04:43,756 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:04:43,756 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:04:43,756 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:04:43,757 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:04:43,757 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:04:43,757 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#t~mem30#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:04:43,757 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#t~post34#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:04:43,757 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#t~mem32#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:04:43,758 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:04:43,758 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#t~nondet29#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:04:43,759 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#t~post31#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:04:43,759 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#t~short33#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:04:43,759 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:04:43,764 INFO L148 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2021-12-28 03:04:43,813 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-28 03:04:43,819 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-12-28 03:04:43,819 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-12-28 03:04:43,832 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 316 places, 328 transitions, 688 flow [2021-12-28 03:04:43,965 INFO L129 PetriNetUnfolder]: 25/324 cut-off events. [2021-12-28 03:04:43,966 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2021-12-28 03:04:43,971 INFO L84 FinitePrefix]: Finished finitePrefix Result has 341 conditions, 324 events. 25/324 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 188 event pairs, 0 based on Foata normal form. 0/298 useless extension candidates. Maximal degree in co-relation 284. Up to 2 conditions per place. [2021-12-28 03:04:43,971 INFO L82 GeneralOperation]: Start removeDead. Operand has 316 places, 328 transitions, 688 flow [2021-12-28 03:04:43,979 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 299 places, 311 transitions, 646 flow [2021-12-28 03:04:44,017 INFO L129 PetriNetUnfolder]: 25/310 cut-off events. [2021-12-28 03:04:44,017 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2021-12-28 03:04:44,018 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-28 03:04:44,019 INFO L254 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 03:04:44,019 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-12-28 03:04:44,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 03:04:44,023 INFO L85 PathProgramCache]: Analyzing trace with hash 1254717550, now seen corresponding path program 1 times [2021-12-28 03:04:44,028 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 03:04:44,028 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2020431681] [2021-12-28 03:04:44,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 03:04:44,029 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 03:04:44,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:04:44,218 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 03:04:44,219 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 03:04:44,219 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2020431681] [2021-12-28 03:04:44,219 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2020431681] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 03:04:44,219 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 03:04:44,220 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-28 03:04:44,221 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1154913061] [2021-12-28 03:04:44,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 03:04:44,227 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-12-28 03:04:44,227 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 03:04:44,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-12-28 03:04:44,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-28 03:04:44,245 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 290 out of 328 [2021-12-28 03:04:44,249 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 299 places, 311 transitions, 646 flow. Second operand has 2 states, 2 states have (on average 296.5) internal successors, (593), 2 states have internal predecessors, (593), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 03:04:44,249 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-28 03:04:44,249 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 290 of 328 [2021-12-28 03:04:44,250 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-28 03:04:44,401 INFO L129 PetriNetUnfolder]: 285/660 cut-off events. [2021-12-28 03:04:44,401 INFO L130 PetriNetUnfolder]: For 89/90 co-relation queries the response was YES. [2021-12-28 03:04:44,403 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1153 conditions, 660 events. 285/660 cut-off events. For 89/90 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 1585 event pairs, 147 based on Foata normal form. 147/776 useless extension candidates. Maximal degree in co-relation 831. Up to 387 conditions per place. [2021-12-28 03:04:44,408 INFO L132 encePairwiseOnDemand]: 311/328 looper letters, 20 selfloop transitions, 0 changer transitions 9/294 dead transitions. [2021-12-28 03:04:44,408 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 300 places, 294 transitions, 652 flow [2021-12-28 03:04:44,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-28 03:04:44,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2021-12-28 03:04:44,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 617 transitions. [2021-12-28 03:04:44,424 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9405487804878049 [2021-12-28 03:04:44,424 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 617 transitions. [2021-12-28 03:04:44,424 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 617 transitions. [2021-12-28 03:04:44,427 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-28 03:04:44,429 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 617 transitions. [2021-12-28 03:04:44,433 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 308.5) internal successors, (617), 2 states have internal predecessors, (617), 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) [2021-12-28 03:04:44,437 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 328.0) internal successors, (984), 3 states have internal predecessors, (984), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 03:04:44,438 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 328.0) internal successors, (984), 3 states have internal predecessors, (984), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 03:04:44,439 INFO L186 Difference]: Start difference. First operand has 299 places, 311 transitions, 646 flow. Second operand 2 states and 617 transitions. [2021-12-28 03:04:44,440 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 300 places, 294 transitions, 652 flow [2021-12-28 03:04:44,444 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 292 places, 294 transitions, 636 flow, removed 0 selfloop flow, removed 8 redundant places. [2021-12-28 03:04:44,450 INFO L242 Difference]: Finished difference. Result has 292 places, 285 transitions, 578 flow [2021-12-28 03:04:44,452 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=328, PETRI_DIFFERENCE_MINUEND_FLOW=596, PETRI_DIFFERENCE_MINUEND_PLACES=291, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=294, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=294, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=578, PETRI_PLACES=292, PETRI_TRANSITIONS=285} [2021-12-28 03:04:44,454 INFO L334 CegarLoopForPetriNet]: 299 programPoint places, -7 predicate places. [2021-12-28 03:04:44,454 INFO L470 AbstractCegarLoop]: Abstraction has has 292 places, 285 transitions, 578 flow [2021-12-28 03:04:44,455 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 296.5) internal successors, (593), 2 states have internal predecessors, (593), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 03:04:44,455 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-28 03:04:44,455 INFO L254 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 03:04:44,456 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-28 03:04:44,456 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-12-28 03:04:44,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 03:04:44,457 INFO L85 PathProgramCache]: Analyzing trace with hash 341190117, now seen corresponding path program 1 times [2021-12-28 03:04:44,457 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 03:04:44,457 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1676199386] [2021-12-28 03:04:44,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 03:04:44,457 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 03:04:44,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:04:44,726 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 03:04:44,727 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 03:04:44,727 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1676199386] [2021-12-28 03:04:44,727 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1676199386] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 03:04:44,727 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 03:04:44,728 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-28 03:04:44,728 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [583628981] [2021-12-28 03:04:44,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 03:04:44,744 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-28 03:04:44,744 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 03:04:44,745 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-28 03:04:44,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-28 03:04:44,746 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 243 out of 328 [2021-12-28 03:04:44,747 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 292 places, 285 transitions, 578 flow. Second operand has 5 states, 5 states have (on average 252.2) internal successors, (1261), 5 states have internal predecessors, (1261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 03:04:44,748 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-28 03:04:44,748 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 243 of 328 [2021-12-28 03:04:44,748 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-28 03:04:44,996 INFO L129 PetriNetUnfolder]: 309/798 cut-off events. [2021-12-28 03:04:44,997 INFO L130 PetriNetUnfolder]: For 22/22 co-relation queries the response was YES. [2021-12-28 03:04:44,999 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1310 conditions, 798 events. 309/798 cut-off events. For 22/22 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 2516 event pairs, 125 based on Foata normal form. 1/744 useless extension candidates. Maximal degree in co-relation 1307. Up to 413 conditions per place. [2021-12-28 03:04:45,003 INFO L132 encePairwiseOnDemand]: 320/328 looper letters, 64 selfloop transitions, 5 changer transitions 4/300 dead transitions. [2021-12-28 03:04:45,003 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 287 places, 300 transitions, 761 flow [2021-12-28 03:04:45,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-28 03:04:45,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-12-28 03:04:45,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1289 transitions. [2021-12-28 03:04:45,006 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7859756097560976 [2021-12-28 03:04:45,006 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1289 transitions. [2021-12-28 03:04:45,006 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1289 transitions. [2021-12-28 03:04:45,006 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-28 03:04:45,007 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1289 transitions. [2021-12-28 03:04:45,009 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 257.8) internal successors, (1289), 5 states have internal predecessors, (1289), 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) [2021-12-28 03:04:45,012 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 328.0) internal successors, (1968), 6 states have internal predecessors, (1968), 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) [2021-12-28 03:04:45,013 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 328.0) internal successors, (1968), 6 states have internal predecessors, (1968), 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) [2021-12-28 03:04:45,013 INFO L186 Difference]: Start difference. First operand has 292 places, 285 transitions, 578 flow. Second operand 5 states and 1289 transitions. [2021-12-28 03:04:45,013 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 287 places, 300 transitions, 761 flow [2021-12-28 03:04:45,015 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 287 places, 300 transitions, 761 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-12-28 03:04:45,019 INFO L242 Difference]: Finished difference. Result has 290 places, 289 transitions, 615 flow [2021-12-28 03:04:45,020 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=328, PETRI_DIFFERENCE_MINUEND_FLOW=578, PETRI_DIFFERENCE_MINUEND_PLACES=283, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=285, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=280, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=615, PETRI_PLACES=290, PETRI_TRANSITIONS=289} [2021-12-28 03:04:45,021 INFO L334 CegarLoopForPetriNet]: 299 programPoint places, -9 predicate places. [2021-12-28 03:04:45,021 INFO L470 AbstractCegarLoop]: Abstraction has has 290 places, 289 transitions, 615 flow [2021-12-28 03:04:45,022 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 252.2) internal successors, (1261), 5 states have internal predecessors, (1261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 03:04:45,022 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-28 03:04:45,022 INFO L254 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 03:04:45,022 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-28 03:04:45,022 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-12-28 03:04:45,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 03:04:45,023 INFO L85 PathProgramCache]: Analyzing trace with hash 1971396133, now seen corresponding path program 1 times [2021-12-28 03:04:45,023 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 03:04:45,024 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1045814111] [2021-12-28 03:04:45,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 03:04:45,024 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 03:04:45,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:04:45,137 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 03:04:45,137 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 03:04:45,138 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1045814111] [2021-12-28 03:04:45,138 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1045814111] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 03:04:45,138 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 03:04:45,138 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-28 03:04:45,138 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [122891388] [2021-12-28 03:04:45,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 03:04:45,139 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-28 03:04:45,139 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 03:04:45,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-28 03:04:45,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-12-28 03:04:45,141 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 240 out of 328 [2021-12-28 03:04:45,142 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 290 places, 289 transitions, 615 flow. Second operand has 6 states, 6 states have (on average 247.33333333333334) internal successors, (1484), 6 states have internal predecessors, (1484), 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) [2021-12-28 03:04:45,143 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-28 03:04:45,143 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 240 of 328 [2021-12-28 03:04:45,143 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-28 03:04:45,389 INFO L129 PetriNetUnfolder]: 323/953 cut-off events. [2021-12-28 03:04:45,389 INFO L130 PetriNetUnfolder]: For 118/119 co-relation queries the response was YES. [2021-12-28 03:04:45,391 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1761 conditions, 953 events. 323/953 cut-off events. For 118/119 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 2948 event pairs, 148 based on Foata normal form. 36/945 useless extension candidates. Maximal degree in co-relation 1754. Up to 459 conditions per place. [2021-12-28 03:04:45,395 INFO L132 encePairwiseOnDemand]: 315/328 looper letters, 70 selfloop transitions, 8 changer transitions 49/342 dead transitions. [2021-12-28 03:04:45,395 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 296 places, 342 transitions, 993 flow [2021-12-28 03:04:45,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-28 03:04:45,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-12-28 03:04:45,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 2285 transitions. [2021-12-28 03:04:45,399 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7740514905149052 [2021-12-28 03:04:45,400 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 2285 transitions. [2021-12-28 03:04:45,400 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 2285 transitions. [2021-12-28 03:04:45,401 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-28 03:04:45,401 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 2285 transitions. [2021-12-28 03:04:45,404 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 253.88888888888889) internal successors, (2285), 9 states have internal predecessors, (2285), 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) [2021-12-28 03:04:45,408 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 328.0) internal successors, (3280), 10 states have internal predecessors, (3280), 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) [2021-12-28 03:04:45,409 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 328.0) internal successors, (3280), 10 states have internal predecessors, (3280), 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) [2021-12-28 03:04:45,409 INFO L186 Difference]: Start difference. First operand has 290 places, 289 transitions, 615 flow. Second operand 9 states and 2285 transitions. [2021-12-28 03:04:45,409 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 296 places, 342 transitions, 993 flow [2021-12-28 03:04:45,412 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 293 places, 342 transitions, 982 flow, removed 2 selfloop flow, removed 3 redundant places. [2021-12-28 03:04:45,415 INFO L242 Difference]: Finished difference. Result has 295 places, 290 transitions, 642 flow [2021-12-28 03:04:45,416 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=328, PETRI_DIFFERENCE_MINUEND_FLOW=606, PETRI_DIFFERENCE_MINUEND_PLACES=285, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=289, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=281, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=642, PETRI_PLACES=295, PETRI_TRANSITIONS=290} [2021-12-28 03:04:45,418 INFO L334 CegarLoopForPetriNet]: 299 programPoint places, -4 predicate places. [2021-12-28 03:04:45,418 INFO L470 AbstractCegarLoop]: Abstraction has has 295 places, 290 transitions, 642 flow [2021-12-28 03:04:45,419 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 247.33333333333334) internal successors, (1484), 6 states have internal predecessors, (1484), 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) [2021-12-28 03:04:45,419 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-28 03:04:45,419 INFO L254 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 03:04:45,419 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-28 03:04:45,420 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-12-28 03:04:45,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 03:04:45,421 INFO L85 PathProgramCache]: Analyzing trace with hash -156769024, now seen corresponding path program 1 times [2021-12-28 03:04:45,421 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 03:04:45,421 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [797292054] [2021-12-28 03:04:45,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 03:04:45,422 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 03:04:45,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:04:45,599 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-12-28 03:04:45,599 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 03:04:45,599 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [797292054] [2021-12-28 03:04:45,599 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [797292054] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 03:04:45,600 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 03:04:45,600 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-28 03:04:45,600 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2061929373] [2021-12-28 03:04:45,600 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 03:04:45,600 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-28 03:04:45,601 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 03:04:45,601 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-28 03:04:45,601 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-28 03:04:45,602 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 283 out of 328 [2021-12-28 03:04:45,603 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 295 places, 290 transitions, 642 flow. Second operand has 4 states, 4 states have (on average 287.25) internal successors, (1149), 4 states have internal predecessors, (1149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 03:04:45,603 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-28 03:04:45,603 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 283 of 328 [2021-12-28 03:04:45,604 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-28 03:04:45,740 INFO L129 PetriNetUnfolder]: 347/866 cut-off events. [2021-12-28 03:04:45,740 INFO L130 PetriNetUnfolder]: For 262/263 co-relation queries the response was YES. [2021-12-28 03:04:45,742 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1775 conditions, 866 events. 347/866 cut-off events. For 262/263 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 2822 event pairs, 65 based on Foata normal form. 23/855 useless extension candidates. Maximal degree in co-relation 1768. Up to 396 conditions per place. [2021-12-28 03:04:45,746 INFO L132 encePairwiseOnDemand]: 321/328 looper letters, 37 selfloop transitions, 6 changer transitions 0/302 dead transitions. [2021-12-28 03:04:45,746 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 296 places, 302 transitions, 769 flow [2021-12-28 03:04:45,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-28 03:04:45,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-12-28 03:04:45,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1173 transitions. [2021-12-28 03:04:45,748 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8940548780487805 [2021-12-28 03:04:45,748 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 1173 transitions. [2021-12-28 03:04:45,748 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 1173 transitions. [2021-12-28 03:04:45,749 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-28 03:04:45,749 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 1173 transitions. [2021-12-28 03:04:45,751 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 293.25) internal successors, (1173), 4 states have internal predecessors, (1173), 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) [2021-12-28 03:04:45,752 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 328.0) internal successors, (1640), 5 states have internal predecessors, (1640), 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) [2021-12-28 03:04:45,753 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 328.0) internal successors, (1640), 5 states have internal predecessors, (1640), 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) [2021-12-28 03:04:45,753 INFO L186 Difference]: Start difference. First operand has 295 places, 290 transitions, 642 flow. Second operand 4 states and 1173 transitions. [2021-12-28 03:04:45,753 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 296 places, 302 transitions, 769 flow [2021-12-28 03:04:45,755 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 291 places, 302 transitions, 755 flow, removed 0 selfloop flow, removed 5 redundant places. [2021-12-28 03:04:45,758 INFO L242 Difference]: Finished difference. Result has 292 places, 290 transitions, 644 flow [2021-12-28 03:04:45,758 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=328, PETRI_DIFFERENCE_MINUEND_FLOW=624, PETRI_DIFFERENCE_MINUEND_PLACES=288, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=289, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=283, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=644, PETRI_PLACES=292, PETRI_TRANSITIONS=290} [2021-12-28 03:04:45,759 INFO L334 CegarLoopForPetriNet]: 299 programPoint places, -7 predicate places. [2021-12-28 03:04:45,759 INFO L470 AbstractCegarLoop]: Abstraction has has 292 places, 290 transitions, 644 flow [2021-12-28 03:04:45,760 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 287.25) internal successors, (1149), 4 states have internal predecessors, (1149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 03:04:45,760 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-28 03:04:45,760 INFO L254 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 03:04:45,760 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-28 03:04:45,760 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-12-28 03:04:45,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 03:04:45,761 INFO L85 PathProgramCache]: Analyzing trace with hash -775890514, now seen corresponding path program 1 times [2021-12-28 03:04:45,761 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 03:04:45,761 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1341270337] [2021-12-28 03:04:45,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 03:04:45,761 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 03:04:45,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:04:45,854 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-12-28 03:04:45,854 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 03:04:45,854 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1341270337] [2021-12-28 03:04:45,855 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1341270337] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 03:04:45,855 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 03:04:45,855 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-28 03:04:45,855 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [250629451] [2021-12-28 03:04:45,855 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 03:04:45,856 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-28 03:04:45,856 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 03:04:45,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-28 03:04:45,856 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-28 03:04:45,857 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 286 out of 328 [2021-12-28 03:04:45,858 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 292 places, 290 transitions, 644 flow. Second operand has 3 states, 3 states have (on average 290.6666666666667) internal successors, (872), 3 states have internal predecessors, (872), 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) [2021-12-28 03:04:45,858 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-28 03:04:45,858 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 286 of 328 [2021-12-28 03:04:45,858 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-28 03:04:45,997 INFO L129 PetriNetUnfolder]: 326/837 cut-off events. [2021-12-28 03:04:45,998 INFO L130 PetriNetUnfolder]: For 315/316 co-relation queries the response was YES. [2021-12-28 03:04:46,000 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1765 conditions, 837 events. 326/837 cut-off events. For 315/316 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 2707 event pairs, 56 based on Foata normal form. 22/828 useless extension candidates. Maximal degree in co-relation 1757. Up to 398 conditions per place. [2021-12-28 03:04:46,004 INFO L132 encePairwiseOnDemand]: 325/328 looper letters, 38 selfloop transitions, 2 changer transitions 0/302 dead transitions. [2021-12-28 03:04:46,004 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 294 places, 302 transitions, 767 flow [2021-12-28 03:04:46,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-28 03:04:46,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-12-28 03:04:46,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 897 transitions. [2021-12-28 03:04:46,006 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9115853658536586 [2021-12-28 03:04:46,006 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 897 transitions. [2021-12-28 03:04:46,006 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 897 transitions. [2021-12-28 03:04:46,007 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-28 03:04:46,007 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 897 transitions. [2021-12-28 03:04:46,008 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 299.0) internal successors, (897), 3 states have internal predecessors, (897), 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) [2021-12-28 03:04:46,009 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 328.0) internal successors, (1312), 4 states have internal predecessors, (1312), 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) [2021-12-28 03:04:46,010 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 328.0) internal successors, (1312), 4 states have internal predecessors, (1312), 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) [2021-12-28 03:04:46,010 INFO L186 Difference]: Start difference. First operand has 292 places, 290 transitions, 644 flow. Second operand 3 states and 897 transitions. [2021-12-28 03:04:46,010 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 294 places, 302 transitions, 767 flow [2021-12-28 03:04:46,012 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 292 places, 302 transitions, 757 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-12-28 03:04:46,015 INFO L242 Difference]: Finished difference. Result has 293 places, 290 transitions, 642 flow [2021-12-28 03:04:46,015 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=328, PETRI_DIFFERENCE_MINUEND_FLOW=630, PETRI_DIFFERENCE_MINUEND_PLACES=290, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=289, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=287, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=642, PETRI_PLACES=293, PETRI_TRANSITIONS=290} [2021-12-28 03:04:46,016 INFO L334 CegarLoopForPetriNet]: 299 programPoint places, -6 predicate places. [2021-12-28 03:04:46,016 INFO L470 AbstractCegarLoop]: Abstraction has has 293 places, 290 transitions, 642 flow [2021-12-28 03:04:46,016 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 290.6666666666667) internal successors, (872), 3 states have internal predecessors, (872), 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) [2021-12-28 03:04:46,017 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-28 03:04:46,017 INFO L254 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 03:04:46,017 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-28 03:04:46,017 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-12-28 03:04:46,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 03:04:46,018 INFO L85 PathProgramCache]: Analyzing trace with hash 1810845900, now seen corresponding path program 1 times [2021-12-28 03:04:46,018 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 03:04:46,018 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2026164378] [2021-12-28 03:04:46,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 03:04:46,018 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 03:04:46,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:04:46,144 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-12-28 03:04:46,145 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 03:04:46,145 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2026164378] [2021-12-28 03:04:46,145 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2026164378] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 03:04:46,145 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 03:04:46,145 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-28 03:04:46,146 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [455825754] [2021-12-28 03:04:46,146 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 03:04:46,146 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-28 03:04:46,146 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 03:04:46,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-28 03:04:46,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-28 03:04:46,148 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 283 out of 328 [2021-12-28 03:04:46,149 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 293 places, 290 transitions, 642 flow. Second operand has 4 states, 4 states have (on average 287.25) internal successors, (1149), 4 states have internal predecessors, (1149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 03:04:46,149 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-28 03:04:46,149 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 283 of 328 [2021-12-28 03:04:46,149 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-28 03:04:46,314 INFO L129 PetriNetUnfolder]: 422/985 cut-off events. [2021-12-28 03:04:46,315 INFO L130 PetriNetUnfolder]: For 536/537 co-relation queries the response was YES. [2021-12-28 03:04:46,317 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2246 conditions, 985 events. 422/985 cut-off events. For 536/537 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 3594 event pairs, 80 based on Foata normal form. 19/973 useless extension candidates. Maximal degree in co-relation 2237. Up to 403 conditions per place. [2021-12-28 03:04:46,322 INFO L132 encePairwiseOnDemand]: 321/328 looper letters, 35 selfloop transitions, 6 changer transitions 4/304 dead transitions. [2021-12-28 03:04:46,322 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 296 places, 304 transitions, 779 flow [2021-12-28 03:04:46,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-28 03:04:46,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-12-28 03:04:46,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1178 transitions. [2021-12-28 03:04:46,324 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8978658536585366 [2021-12-28 03:04:46,324 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 1178 transitions. [2021-12-28 03:04:46,324 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 1178 transitions. [2021-12-28 03:04:46,325 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-28 03:04:46,325 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 1178 transitions. [2021-12-28 03:04:46,326 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 294.5) internal successors, (1178), 4 states have internal predecessors, (1178), 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) [2021-12-28 03:04:46,328 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 328.0) internal successors, (1640), 5 states have internal predecessors, (1640), 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) [2021-12-28 03:04:46,328 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 328.0) internal successors, (1640), 5 states have internal predecessors, (1640), 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) [2021-12-28 03:04:46,329 INFO L186 Difference]: Start difference. First operand has 293 places, 290 transitions, 642 flow. Second operand 4 states and 1178 transitions. [2021-12-28 03:04:46,329 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 296 places, 304 transitions, 779 flow [2021-12-28 03:04:46,330 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 295 places, 304 transitions, 777 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-12-28 03:04:46,333 INFO L242 Difference]: Finished difference. Result has 296 places, 290 transitions, 656 flow [2021-12-28 03:04:46,333 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=328, PETRI_DIFFERENCE_MINUEND_FLOW=636, PETRI_DIFFERENCE_MINUEND_PLACES=292, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=289, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=283, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=656, PETRI_PLACES=296, PETRI_TRANSITIONS=290} [2021-12-28 03:04:46,334 INFO L334 CegarLoopForPetriNet]: 299 programPoint places, -3 predicate places. [2021-12-28 03:04:46,334 INFO L470 AbstractCegarLoop]: Abstraction has has 296 places, 290 transitions, 656 flow [2021-12-28 03:04:46,335 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 287.25) internal successors, (1149), 4 states have internal predecessors, (1149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 03:04:46,335 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-28 03:04:46,335 INFO L254 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 03:04:46,335 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-28 03:04:46,335 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-12-28 03:04:46,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 03:04:46,336 INFO L85 PathProgramCache]: Analyzing trace with hash 217876694, now seen corresponding path program 1 times [2021-12-28 03:04:46,336 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 03:04:46,336 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1127336045] [2021-12-28 03:04:46,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 03:04:46,336 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 03:04:46,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:04:46,410 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-12-28 03:04:46,410 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 03:04:46,410 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1127336045] [2021-12-28 03:04:46,410 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1127336045] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 03:04:46,411 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 03:04:46,411 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-28 03:04:46,411 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [305546892] [2021-12-28 03:04:46,411 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 03:04:46,411 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-28 03:04:46,412 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 03:04:46,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-28 03:04:46,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-12-28 03:04:46,413 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 240 out of 328 [2021-12-28 03:04:46,415 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 296 places, 290 transitions, 656 flow. Second operand has 6 states, 6 states have (on average 248.66666666666666) internal successors, (1492), 6 states have internal predecessors, (1492), 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) [2021-12-28 03:04:46,415 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-28 03:04:46,415 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 240 of 328 [2021-12-28 03:04:46,415 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-28 03:04:46,721 INFO L129 PetriNetUnfolder]: 547/1256 cut-off events. [2021-12-28 03:04:46,721 INFO L130 PetriNetUnfolder]: For 629/631 co-relation queries the response was YES. [2021-12-28 03:04:46,724 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3067 conditions, 1256 events. 547/1256 cut-off events. For 629/631 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 4668 event pairs, 321 based on Foata normal form. 15/1230 useless extension candidates. Maximal degree in co-relation 3057. Up to 619 conditions per place. [2021-12-28 03:04:46,729 INFO L132 encePairwiseOnDemand]: 318/328 looper letters, 71 selfloop transitions, 8 changer transitions 43/337 dead transitions. [2021-12-28 03:04:46,730 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 304 places, 337 transitions, 1024 flow [2021-12-28 03:04:46,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-28 03:04:46,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-12-28 03:04:46,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 2278 transitions. [2021-12-28 03:04:46,734 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.771680216802168 [2021-12-28 03:04:46,734 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 2278 transitions. [2021-12-28 03:04:46,734 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 2278 transitions. [2021-12-28 03:04:46,735 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-28 03:04:46,735 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 2278 transitions. [2021-12-28 03:04:46,739 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 253.11111111111111) internal successors, (2278), 9 states have internal predecessors, (2278), 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) [2021-12-28 03:04:46,742 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 328.0) internal successors, (3280), 10 states have internal predecessors, (3280), 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) [2021-12-28 03:04:46,743 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 328.0) internal successors, (3280), 10 states have internal predecessors, (3280), 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) [2021-12-28 03:04:46,743 INFO L186 Difference]: Start difference. First operand has 296 places, 290 transitions, 656 flow. Second operand 9 states and 2278 transitions. [2021-12-28 03:04:46,743 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 304 places, 337 transitions, 1024 flow [2021-12-28 03:04:46,746 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 302 places, 337 transitions, 1014 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-12-28 03:04:46,749 INFO L242 Difference]: Finished difference. Result has 304 places, 291 transitions, 674 flow [2021-12-28 03:04:46,749 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=328, PETRI_DIFFERENCE_MINUEND_FLOW=646, PETRI_DIFFERENCE_MINUEND_PLACES=294, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=290, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=282, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=674, PETRI_PLACES=304, PETRI_TRANSITIONS=291} [2021-12-28 03:04:46,750 INFO L334 CegarLoopForPetriNet]: 299 programPoint places, 5 predicate places. [2021-12-28 03:04:46,750 INFO L470 AbstractCegarLoop]: Abstraction has has 304 places, 291 transitions, 674 flow [2021-12-28 03:04:46,750 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 248.66666666666666) internal successors, (1492), 6 states have internal predecessors, (1492), 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) [2021-12-28 03:04:46,750 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-28 03:04:46,751 INFO L254 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 03:04:46,751 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-28 03:04:46,751 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-12-28 03:04:46,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 03:04:46,752 INFO L85 PathProgramCache]: Analyzing trace with hash 286973367, now seen corresponding path program 1 times [2021-12-28 03:04:46,752 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 03:04:46,752 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2104287670] [2021-12-28 03:04:46,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 03:04:46,752 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 03:04:46,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:04:46,828 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-12-28 03:04:46,829 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 03:04:46,829 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2104287670] [2021-12-28 03:04:46,829 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2104287670] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 03:04:46,829 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 03:04:46,829 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-28 03:04:46,829 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [428490052] [2021-12-28 03:04:46,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 03:04:46,830 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-28 03:04:46,830 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 03:04:46,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-28 03:04:46,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-12-28 03:04:46,832 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 240 out of 328 [2021-12-28 03:04:46,833 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 304 places, 291 transitions, 674 flow. Second operand has 6 states, 6 states have (on average 249.33333333333334) internal successors, (1496), 6 states have internal predecessors, (1496), 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) [2021-12-28 03:04:46,833 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-28 03:04:46,833 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 240 of 328 [2021-12-28 03:04:46,834 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-28 03:04:47,116 INFO L129 PetriNetUnfolder]: 430/1051 cut-off events. [2021-12-28 03:04:47,116 INFO L130 PetriNetUnfolder]: For 544/546 co-relation queries the response was YES. [2021-12-28 03:04:47,118 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2510 conditions, 1051 events. 430/1051 cut-off events. For 544/546 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 3599 event pairs, 248 based on Foata normal form. 5/1022 useless extension candidates. Maximal degree in co-relation 2498. Up to 607 conditions per place. [2021-12-28 03:04:47,122 INFO L132 encePairwiseOnDemand]: 318/328 looper letters, 72 selfloop transitions, 8 changer transitions 23/318 dead transitions. [2021-12-28 03:04:47,122 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 310 places, 318 transitions, 948 flow [2021-12-28 03:04:47,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-28 03:04:47,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-12-28 03:04:47,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 2258 transitions. [2021-12-28 03:04:47,126 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7649051490514905 [2021-12-28 03:04:47,126 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 2258 transitions. [2021-12-28 03:04:47,126 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 2258 transitions. [2021-12-28 03:04:47,127 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-28 03:04:47,127 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 2258 transitions. [2021-12-28 03:04:47,130 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 250.88888888888889) internal successors, (2258), 9 states have internal predecessors, (2258), 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) [2021-12-28 03:04:47,133 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 328.0) internal successors, (3280), 10 states have internal predecessors, (3280), 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) [2021-12-28 03:04:47,134 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 328.0) internal successors, (3280), 10 states have internal predecessors, (3280), 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) [2021-12-28 03:04:47,134 INFO L186 Difference]: Start difference. First operand has 304 places, 291 transitions, 674 flow. Second operand 9 states and 2258 transitions. [2021-12-28 03:04:47,134 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 310 places, 318 transitions, 948 flow [2021-12-28 03:04:47,136 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 304 places, 318 transitions, 930 flow, removed 1 selfloop flow, removed 6 redundant places. [2021-12-28 03:04:47,139 INFO L242 Difference]: Finished difference. Result has 306 places, 292 transitions, 684 flow [2021-12-28 03:04:47,140 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=328, PETRI_DIFFERENCE_MINUEND_FLOW=656, PETRI_DIFFERENCE_MINUEND_PLACES=296, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=291, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=283, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=684, PETRI_PLACES=306, PETRI_TRANSITIONS=292} [2021-12-28 03:04:47,140 INFO L334 CegarLoopForPetriNet]: 299 programPoint places, 7 predicate places. [2021-12-28 03:04:47,140 INFO L470 AbstractCegarLoop]: Abstraction has has 306 places, 292 transitions, 684 flow [2021-12-28 03:04:47,141 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 249.33333333333334) internal successors, (1496), 6 states have internal predecessors, (1496), 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) [2021-12-28 03:04:47,141 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-28 03:04:47,141 INFO L254 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 03:04:47,141 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-28 03:04:47,141 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-12-28 03:04:47,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 03:04:47,142 INFO L85 PathProgramCache]: Analyzing trace with hash 1473629918, now seen corresponding path program 1 times [2021-12-28 03:04:47,142 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 03:04:47,142 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1604833052] [2021-12-28 03:04:47,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 03:04:47,143 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 03:04:47,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:04:47,211 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-12-28 03:04:47,212 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 03:04:47,212 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1604833052] [2021-12-28 03:04:47,212 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1604833052] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 03:04:47,212 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 03:04:47,212 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-28 03:04:47,213 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [77720157] [2021-12-28 03:04:47,213 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 03:04:47,213 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-28 03:04:47,213 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 03:04:47,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-28 03:04:47,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-12-28 03:04:47,215 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 240 out of 328 [2021-12-28 03:04:47,216 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 306 places, 292 transitions, 684 flow. Second operand has 6 states, 6 states have (on average 250.0) internal successors, (1500), 6 states have internal predecessors, (1500), 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) [2021-12-28 03:04:47,216 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-28 03:04:47,216 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 240 of 328 [2021-12-28 03:04:47,216 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-28 03:04:47,434 INFO L129 PetriNetUnfolder]: 440/1036 cut-off events. [2021-12-28 03:04:47,435 INFO L130 PetriNetUnfolder]: For 541/543 co-relation queries the response was YES. [2021-12-28 03:04:47,438 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2530 conditions, 1036 events. 440/1036 cut-off events. For 541/543 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 3619 event pairs, 255 based on Foata normal form. 9/1010 useless extension candidates. Maximal degree in co-relation 2517. Up to 604 conditions per place. [2021-12-28 03:04:47,442 INFO L132 encePairwiseOnDemand]: 320/328 looper letters, 75 selfloop transitions, 6 changer transitions 14/310 dead transitions. [2021-12-28 03:04:47,443 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 310 places, 310 transitions, 934 flow [2021-12-28 03:04:47,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-28 03:04:47,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-12-28 03:04:47,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1769 transitions. [2021-12-28 03:04:47,446 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7704703832752613 [2021-12-28 03:04:47,446 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1769 transitions. [2021-12-28 03:04:47,446 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1769 transitions. [2021-12-28 03:04:47,447 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-28 03:04:47,447 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1769 transitions. [2021-12-28 03:04:47,449 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 252.71428571428572) internal successors, (1769), 7 states have internal predecessors, (1769), 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) [2021-12-28 03:04:47,452 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 328.0) internal successors, (2624), 8 states have internal predecessors, (2624), 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) [2021-12-28 03:04:47,452 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 328.0) internal successors, (2624), 8 states have internal predecessors, (2624), 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) [2021-12-28 03:04:47,452 INFO L186 Difference]: Start difference. First operand has 306 places, 292 transitions, 684 flow. Second operand 7 states and 1769 transitions. [2021-12-28 03:04:47,452 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 310 places, 310 transitions, 934 flow [2021-12-28 03:04:47,455 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 304 places, 310 transitions, 914 flow, removed 2 selfloop flow, removed 6 redundant places. [2021-12-28 03:04:47,457 INFO L242 Difference]: Finished difference. Result has 306 places, 293 transitions, 688 flow [2021-12-28 03:04:47,458 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=328, PETRI_DIFFERENCE_MINUEND_FLOW=666, PETRI_DIFFERENCE_MINUEND_PLACES=298, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=292, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=286, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=688, PETRI_PLACES=306, PETRI_TRANSITIONS=293} [2021-12-28 03:04:47,458 INFO L334 CegarLoopForPetriNet]: 299 programPoint places, 7 predicate places. [2021-12-28 03:04:47,459 INFO L470 AbstractCegarLoop]: Abstraction has has 306 places, 293 transitions, 688 flow [2021-12-28 03:04:47,459 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 250.0) internal successors, (1500), 6 states have internal predecessors, (1500), 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) [2021-12-28 03:04:47,460 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-28 03:04:47,460 INFO L254 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 03:04:47,460 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-12-28 03:04:47,460 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-12-28 03:04:47,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 03:04:47,461 INFO L85 PathProgramCache]: Analyzing trace with hash -1931276737, now seen corresponding path program 1 times [2021-12-28 03:04:47,461 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 03:04:47,461 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [937999286] [2021-12-28 03:04:47,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 03:04:47,461 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 03:04:47,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:04:47,626 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-12-28 03:04:47,626 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 03:04:47,626 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [937999286] [2021-12-28 03:04:47,626 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [937999286] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 03:04:47,626 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 03:04:47,627 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-28 03:04:47,627 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1822499397] [2021-12-28 03:04:47,627 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 03:04:47,627 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-28 03:04:47,628 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 03:04:47,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-28 03:04:47,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-28 03:04:47,629 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 283 out of 328 [2021-12-28 03:04:47,629 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 306 places, 293 transitions, 688 flow. Second operand has 3 states, 3 states have (on average 290.0) internal successors, (870), 3 states have internal predecessors, (870), 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) [2021-12-28 03:04:47,630 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-28 03:04:47,630 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 283 of 328 [2021-12-28 03:04:47,630 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-28 03:04:47,734 INFO L129 PetriNetUnfolder]: 212/723 cut-off events. [2021-12-28 03:04:47,735 INFO L130 PetriNetUnfolder]: For 399/407 co-relation queries the response was YES. [2021-12-28 03:04:47,737 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1434 conditions, 723 events. 212/723 cut-off events. For 399/407 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 2094 event pairs, 95 based on Foata normal form. 4/689 useless extension candidates. Maximal degree in co-relation 1420. Up to 294 conditions per place. [2021-12-28 03:04:47,739 INFO L132 encePairwiseOnDemand]: 321/328 looper letters, 26 selfloop transitions, 6 changer transitions 4/298 dead transitions. [2021-12-28 03:04:47,740 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 307 places, 298 transitions, 776 flow [2021-12-28 03:04:47,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-28 03:04:47,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-12-28 03:04:47,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 882 transitions. [2021-12-28 03:04:47,742 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8963414634146342 [2021-12-28 03:04:47,742 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 882 transitions. [2021-12-28 03:04:47,742 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 882 transitions. [2021-12-28 03:04:47,742 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-28 03:04:47,742 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 882 transitions. [2021-12-28 03:04:47,743 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 294.0) internal successors, (882), 3 states have internal predecessors, (882), 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) [2021-12-28 03:04:47,745 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 328.0) internal successors, (1312), 4 states have internal predecessors, (1312), 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) [2021-12-28 03:04:47,745 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 328.0) internal successors, (1312), 4 states have internal predecessors, (1312), 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) [2021-12-28 03:04:47,745 INFO L186 Difference]: Start difference. First operand has 306 places, 293 transitions, 688 flow. Second operand 3 states and 882 transitions. [2021-12-28 03:04:47,745 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 307 places, 298 transitions, 776 flow [2021-12-28 03:04:47,747 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 302 places, 298 transitions, 764 flow, removed 1 selfloop flow, removed 5 redundant places. [2021-12-28 03:04:47,749 INFO L242 Difference]: Finished difference. Result has 303 places, 294 transitions, 702 flow [2021-12-28 03:04:47,750 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=328, PETRI_DIFFERENCE_MINUEND_FLOW=676, PETRI_DIFFERENCE_MINUEND_PLACES=300, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=293, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=287, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=702, PETRI_PLACES=303, PETRI_TRANSITIONS=294} [2021-12-28 03:04:47,750 INFO L334 CegarLoopForPetriNet]: 299 programPoint places, 4 predicate places. [2021-12-28 03:04:47,750 INFO L470 AbstractCegarLoop]: Abstraction has has 303 places, 294 transitions, 702 flow [2021-12-28 03:04:47,751 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 290.0) internal successors, (870), 3 states have internal predecessors, (870), 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) [2021-12-28 03:04:47,751 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-28 03:04:47,751 INFO L254 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 03:04:47,751 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-12-28 03:04:47,752 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-12-28 03:04:47,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 03:04:47,752 INFO L85 PathProgramCache]: Analyzing trace with hash -1970412085, now seen corresponding path program 1 times [2021-12-28 03:04:47,752 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 03:04:47,752 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [119469618] [2021-12-28 03:04:47,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 03:04:47,753 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 03:04:47,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:04:47,892 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-12-28 03:04:47,893 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 03:04:47,893 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [119469618] [2021-12-28 03:04:47,893 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [119469618] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 03:04:47,893 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 03:04:47,893 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-28 03:04:47,894 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1700124507] [2021-12-28 03:04:47,894 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 03:04:47,894 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-28 03:04:47,894 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 03:04:47,895 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-28 03:04:47,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-28 03:04:47,896 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 283 out of 328 [2021-12-28 03:04:47,897 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 303 places, 294 transitions, 702 flow. Second operand has 5 states, 5 states have (on average 287.6) internal successors, (1438), 5 states have internal predecessors, (1438), 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) [2021-12-28 03:04:47,897 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-28 03:04:47,897 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 283 of 328 [2021-12-28 03:04:47,897 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-28 03:04:48,142 INFO L129 PetriNetUnfolder]: 588/1631 cut-off events. [2021-12-28 03:04:48,143 INFO L130 PetriNetUnfolder]: For 1269/1307 co-relation queries the response was YES. [2021-12-28 03:04:48,149 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3664 conditions, 1631 events. 588/1631 cut-off events. For 1269/1307 co-relation queries the response was YES. Maximal size of possible extension queue 67. Compared 8326 event pairs, 138 based on Foata normal form. 28/1549 useless extension candidates. Maximal degree in co-relation 3650. Up to 387 conditions per place. [2021-12-28 03:04:48,157 INFO L132 encePairwiseOnDemand]: 317/328 looper letters, 49 selfloop transitions, 16 changer transitions 0/327 dead transitions. [2021-12-28 03:04:48,157 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 307 places, 327 transitions, 970 flow [2021-12-28 03:04:48,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-28 03:04:48,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-12-28 03:04:48,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1474 transitions. [2021-12-28 03:04:48,160 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8987804878048781 [2021-12-28 03:04:48,160 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1474 transitions. [2021-12-28 03:04:48,160 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1474 transitions. [2021-12-28 03:04:48,160 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-28 03:04:48,160 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1474 transitions. [2021-12-28 03:04:48,162 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 294.8) internal successors, (1474), 5 states have internal predecessors, (1474), 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) [2021-12-28 03:04:48,164 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 328.0) internal successors, (1968), 6 states have internal predecessors, (1968), 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) [2021-12-28 03:04:48,164 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 328.0) internal successors, (1968), 6 states have internal predecessors, (1968), 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) [2021-12-28 03:04:48,164 INFO L186 Difference]: Start difference. First operand has 303 places, 294 transitions, 702 flow. Second operand 5 states and 1474 transitions. [2021-12-28 03:04:48,164 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 307 places, 327 transitions, 970 flow [2021-12-28 03:04:48,167 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 306 places, 327 transitions, 964 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-12-28 03:04:48,170 INFO L242 Difference]: Finished difference. Result has 308 places, 303 transitions, 804 flow [2021-12-28 03:04:48,170 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=328, PETRI_DIFFERENCE_MINUEND_FLOW=696, PETRI_DIFFERENCE_MINUEND_PLACES=302, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=294, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=281, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=804, PETRI_PLACES=308, PETRI_TRANSITIONS=303} [2021-12-28 03:04:48,171 INFO L334 CegarLoopForPetriNet]: 299 programPoint places, 9 predicate places. [2021-12-28 03:04:48,171 INFO L470 AbstractCegarLoop]: Abstraction has has 308 places, 303 transitions, 804 flow [2021-12-28 03:04:48,171 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 287.6) internal successors, (1438), 5 states have internal predecessors, (1438), 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) [2021-12-28 03:04:48,171 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-28 03:04:48,171 INFO L254 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 03:04:48,172 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-12-28 03:04:48,172 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-12-28 03:04:48,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 03:04:48,172 INFO L85 PathProgramCache]: Analyzing trace with hash -1923215515, now seen corresponding path program 1 times [2021-12-28 03:04:48,172 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 03:04:48,172 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [865823434] [2021-12-28 03:04:48,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 03:04:48,172 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 03:04:48,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:04:48,297 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 5 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-12-28 03:04:48,297 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 03:04:48,297 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [865823434] [2021-12-28 03:04:48,297 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [865823434] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-28 03:04:48,297 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [25527653] [2021-12-28 03:04:48,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 03:04:48,297 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-28 03:04:48,298 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 03:04:48,299 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) [2021-12-28 03:04:48,333 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-28 03:04:48,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:04:48,484 INFO L263 TraceCheckSpWp]: Trace formula consists of 731 conjuncts, 9 conjunts are in the unsatisfiable core [2021-12-28 03:04:48,492 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-28 03:04:48,972 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-12-28 03:04:48,973 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-28 03:04:49,413 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-12-28 03:04:49,414 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [25527653] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-28 03:04:49,414 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-28 03:04:49,414 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 19 [2021-12-28 03:04:49,414 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [84169239] [2021-12-28 03:04:49,414 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-28 03:04:49,415 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2021-12-28 03:04:49,415 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 03:04:49,416 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-12-28 03:04:49,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=265, Unknown=0, NotChecked=0, Total=342 [2021-12-28 03:04:49,420 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 234 out of 328 [2021-12-28 03:04:49,423 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 308 places, 303 transitions, 804 flow. Second operand has 19 states, 19 states have (on average 239.8421052631579) internal successors, (4557), 19 states have internal predecessors, (4557), 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) [2021-12-28 03:04:49,423 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-28 03:04:49,423 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 234 of 328 [2021-12-28 03:04:49,423 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-28 03:04:49,978 INFO L129 PetriNetUnfolder]: 596/1876 cut-off events. [2021-12-28 03:04:49,978 INFO L130 PetriNetUnfolder]: For 2361/2389 co-relation queries the response was YES. [2021-12-28 03:04:49,987 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4759 conditions, 1876 events. 596/1876 cut-off events. For 2361/2389 co-relation queries the response was YES. Maximal size of possible extension queue 67. Compared 9168 event pairs, 294 based on Foata normal form. 5/1738 useless extension candidates. Maximal degree in co-relation 4743. Up to 863 conditions per place. [2021-12-28 03:04:49,994 INFO L132 encePairwiseOnDemand]: 306/328 looper letters, 79 selfloop transitions, 23 changer transitions 60/371 dead transitions. [2021-12-28 03:04:49,995 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 324 places, 371 transitions, 1333 flow [2021-12-28 03:04:49,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-12-28 03:04:49,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2021-12-28 03:04:50,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 4122 transitions. [2021-12-28 03:04:50,002 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7392395982783357 [2021-12-28 03:04:50,002 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 4122 transitions. [2021-12-28 03:04:50,002 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 4122 transitions. [2021-12-28 03:04:50,003 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-28 03:04:50,004 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 4122 transitions. [2021-12-28 03:04:50,008 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 242.47058823529412) internal successors, (4122), 17 states have internal predecessors, (4122), 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) [2021-12-28 03:04:50,014 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 328.0) internal successors, (5904), 18 states have internal predecessors, (5904), 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) [2021-12-28 03:04:50,015 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 328.0) internal successors, (5904), 18 states have internal predecessors, (5904), 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) [2021-12-28 03:04:50,015 INFO L186 Difference]: Start difference. First operand has 308 places, 303 transitions, 804 flow. Second operand 17 states and 4122 transitions. [2021-12-28 03:04:50,015 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 324 places, 371 transitions, 1333 flow [2021-12-28 03:04:50,022 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 323 places, 371 transitions, 1299 flow, removed 15 selfloop flow, removed 1 redundant places. [2021-12-28 03:04:50,026 INFO L242 Difference]: Finished difference. Result has 329 places, 307 transitions, 860 flow [2021-12-28 03:04:50,026 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=328, PETRI_DIFFERENCE_MINUEND_FLOW=776, PETRI_DIFFERENCE_MINUEND_PLACES=307, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=303, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=281, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=860, PETRI_PLACES=329, PETRI_TRANSITIONS=307} [2021-12-28 03:04:50,028 INFO L334 CegarLoopForPetriNet]: 299 programPoint places, 30 predicate places. [2021-12-28 03:04:50,028 INFO L470 AbstractCegarLoop]: Abstraction has has 329 places, 307 transitions, 860 flow [2021-12-28 03:04:50,029 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 239.8421052631579) internal successors, (4557), 19 states have internal predecessors, (4557), 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) [2021-12-28 03:04:50,029 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-28 03:04:50,029 INFO L254 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 03:04:50,074 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-12-28 03:04:50,247 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2021-12-28 03:04:50,248 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-12-28 03:04:50,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 03:04:50,248 INFO L85 PathProgramCache]: Analyzing trace with hash -1533768918, now seen corresponding path program 2 times [2021-12-28 03:04:50,248 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 03:04:50,248 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2092614036] [2021-12-28 03:04:50,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 03:04:50,249 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 03:04:50,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:04:50,437 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 8 proven. 9 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-12-28 03:04:50,437 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 03:04:50,437 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2092614036] [2021-12-28 03:04:50,437 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2092614036] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-28 03:04:50,437 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [524336047] [2021-12-28 03:04:50,438 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-28 03:04:50,438 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-28 03:04:50,438 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 03:04:50,439 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) [2021-12-28 03:04:50,440 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-12-28 03:04:50,636 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-12-28 03:04:50,637 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-28 03:04:50,640 INFO L263 TraceCheckSpWp]: Trace formula consists of 744 conjuncts, 12 conjunts are in the unsatisfiable core [2021-12-28 03:04:50,644 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-28 03:04:51,131 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 8 proven. 9 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-12-28 03:04:51,132 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-28 03:04:51,652 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 4 proven. 13 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-12-28 03:04:51,652 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [524336047] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-28 03:04:51,652 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-28 03:04:51,653 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 28 [2021-12-28 03:04:51,653 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1993276772] [2021-12-28 03:04:51,653 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-28 03:04:51,654 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2021-12-28 03:04:51,654 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 03:04:51,655 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-12-28 03:04:51,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=145, Invalid=611, Unknown=0, NotChecked=0, Total=756 [2021-12-28 03:04:51,658 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 234 out of 328 [2021-12-28 03:04:51,662 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 329 places, 307 transitions, 860 flow. Second operand has 28 states, 28 states have (on average 238.60714285714286) internal successors, (6681), 28 states have internal predecessors, (6681), 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) [2021-12-28 03:04:51,662 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-28 03:04:51,662 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 234 of 328 [2021-12-28 03:04:51,662 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-28 03:04:52,451 INFO L129 PetriNetUnfolder]: 606/1927 cut-off events. [2021-12-28 03:04:52,451 INFO L130 PetriNetUnfolder]: For 1969/1997 co-relation queries the response was YES. [2021-12-28 03:04:52,457 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4737 conditions, 1927 events. 606/1927 cut-off events. For 1969/1997 co-relation queries the response was YES. Maximal size of possible extension queue 67. Compared 9455 event pairs, 296 based on Foata normal form. 9/1788 useless extension candidates. Maximal degree in co-relation 4714. Up to 863 conditions per place. [2021-12-28 03:04:52,465 INFO L132 encePairwiseOnDemand]: 298/328 looper letters, 81 selfloop transitions, 26 changer transitions 69/385 dead transitions. [2021-12-28 03:04:52,465 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 348 places, 385 transitions, 1504 flow [2021-12-28 03:04:52,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-12-28 03:04:52,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2021-12-28 03:04:52,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 5774 transitions. [2021-12-28 03:04:52,475 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7334857723577236 [2021-12-28 03:04:52,476 INFO L72 ComplementDD]: Start complementDD. Operand 24 states and 5774 transitions. [2021-12-28 03:04:52,476 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 5774 transitions. [2021-12-28 03:04:52,478 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-28 03:04:52,479 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 24 states and 5774 transitions. [2021-12-28 03:04:52,486 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 25 states, 24 states have (on average 240.58333333333334) internal successors, (5774), 24 states have internal predecessors, (5774), 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) [2021-12-28 03:04:52,495 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 25 states, 25 states have (on average 328.0) internal successors, (8200), 25 states have internal predecessors, (8200), 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) [2021-12-28 03:04:52,496 INFO L81 ComplementDD]: Finished complementDD. Result has 25 states, 25 states have (on average 328.0) internal successors, (8200), 25 states have internal predecessors, (8200), 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) [2021-12-28 03:04:52,496 INFO L186 Difference]: Start difference. First operand has 329 places, 307 transitions, 860 flow. Second operand 24 states and 5774 transitions. [2021-12-28 03:04:52,496 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 348 places, 385 transitions, 1504 flow [2021-12-28 03:04:52,501 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 339 places, 385 transitions, 1425 flow, removed 9 selfloop flow, removed 9 redundant places. [2021-12-28 03:04:52,504 INFO L242 Difference]: Finished difference. Result has 348 places, 311 transitions, 936 flow [2021-12-28 03:04:52,505 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=328, PETRI_DIFFERENCE_MINUEND_FLOW=816, PETRI_DIFFERENCE_MINUEND_PLACES=316, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=307, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=282, PETRI_DIFFERENCE_SUBTRAHEND_STATES=24, PETRI_FLOW=936, PETRI_PLACES=348, PETRI_TRANSITIONS=311} [2021-12-28 03:04:52,506 INFO L334 CegarLoopForPetriNet]: 299 programPoint places, 49 predicate places. [2021-12-28 03:04:52,506 INFO L470 AbstractCegarLoop]: Abstraction has has 348 places, 311 transitions, 936 flow [2021-12-28 03:04:52,507 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 238.60714285714286) internal successors, (6681), 28 states have internal predecessors, (6681), 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) [2021-12-28 03:04:52,507 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-28 03:04:52,508 INFO L254 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 03:04:52,560 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-12-28 03:04:52,740 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2021-12-28 03:04:52,741 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-12-28 03:04:52,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 03:04:52,741 INFO L85 PathProgramCache]: Analyzing trace with hash -1069026035, now seen corresponding path program 3 times [2021-12-28 03:04:52,741 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 03:04:52,741 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1731434864] [2021-12-28 03:04:52,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 03:04:52,742 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 03:04:52,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:04:52,927 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2021-12-28 03:04:52,928 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 03:04:52,928 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1731434864] [2021-12-28 03:04:52,928 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1731434864] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 03:04:52,928 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 03:04:52,928 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-28 03:04:52,930 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1416074909] [2021-12-28 03:04:52,930 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 03:04:52,930 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-28 03:04:52,930 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 03:04:52,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-28 03:04:52,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-28 03:04:52,931 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 286 out of 328 [2021-12-28 03:04:52,932 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 348 places, 311 transitions, 936 flow. Second operand has 4 states, 4 states have (on average 292.0) internal successors, (1168), 4 states have internal predecessors, (1168), 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) [2021-12-28 03:04:52,932 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-28 03:04:52,932 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 286 of 328 [2021-12-28 03:04:52,933 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-28 03:04:53,574 INFO L129 PetriNetUnfolder]: 1522/3932 cut-off events. [2021-12-28 03:04:53,574 INFO L130 PetriNetUnfolder]: For 5550/5600 co-relation queries the response was YES. [2021-12-28 03:04:53,596 INFO L84 FinitePrefix]: Finished finitePrefix Result has 10720 conditions, 3932 events. 1522/3932 cut-off events. For 5550/5600 co-relation queries the response was YES. Maximal size of possible extension queue 157. Compared 27329 event pairs, 275 based on Foata normal form. 79/3720 useless extension candidates. Maximal degree in co-relation 10690. Up to 813 conditions per place. [2021-12-28 03:04:53,623 INFO L132 encePairwiseOnDemand]: 325/328 looper letters, 84 selfloop transitions, 5 changer transitions 0/362 dead transitions. [2021-12-28 03:04:53,623 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 343 places, 362 transitions, 1414 flow [2021-12-28 03:04:53,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-28 03:04:53,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-12-28 03:04:53,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1200 transitions. [2021-12-28 03:04:53,625 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9146341463414634 [2021-12-28 03:04:53,625 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 1200 transitions. [2021-12-28 03:04:53,625 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 1200 transitions. [2021-12-28 03:04:53,625 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-28 03:04:53,625 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 1200 transitions. [2021-12-28 03:04:53,627 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 300.0) internal successors, (1200), 4 states have internal predecessors, (1200), 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) [2021-12-28 03:04:53,628 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 328.0) internal successors, (1640), 5 states have internal predecessors, (1640), 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) [2021-12-28 03:04:53,628 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 328.0) internal successors, (1640), 5 states have internal predecessors, (1640), 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) [2021-12-28 03:04:53,628 INFO L186 Difference]: Start difference. First operand has 348 places, 311 transitions, 936 flow. Second operand 4 states and 1200 transitions. [2021-12-28 03:04:53,628 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 343 places, 362 transitions, 1414 flow [2021-12-28 03:04:53,748 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 328 places, 362 transitions, 1318 flow, removed 29 selfloop flow, removed 15 redundant places. [2021-12-28 03:04:53,751 INFO L242 Difference]: Finished difference. Result has 330 places, 314 transitions, 902 flow [2021-12-28 03:04:53,751 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=328, PETRI_DIFFERENCE_MINUEND_FLOW=864, PETRI_DIFFERENCE_MINUEND_PLACES=325, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=311, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=307, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=902, PETRI_PLACES=330, PETRI_TRANSITIONS=314} [2021-12-28 03:04:53,752 INFO L334 CegarLoopForPetriNet]: 299 programPoint places, 31 predicate places. [2021-12-28 03:04:53,752 INFO L470 AbstractCegarLoop]: Abstraction has has 330 places, 314 transitions, 902 flow [2021-12-28 03:04:53,752 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 292.0) internal successors, (1168), 4 states have internal predecessors, (1168), 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) [2021-12-28 03:04:53,753 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-28 03:04:53,753 INFO L254 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 03:04:53,753 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-12-28 03:04:53,753 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-12-28 03:04:53,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 03:04:53,754 INFO L85 PathProgramCache]: Analyzing trace with hash 1832138329, now seen corresponding path program 1 times [2021-12-28 03:04:53,754 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 03:04:53,754 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [334800930] [2021-12-28 03:04:53,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 03:04:53,754 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 03:04:53,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:04:54,076 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2021-12-28 03:04:54,077 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 03:04:54,077 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [334800930] [2021-12-28 03:04:54,077 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [334800930] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-28 03:04:54,077 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [667670807] [2021-12-28 03:04:54,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 03:04:54,077 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-28 03:04:54,077 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 03:04:54,091 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) [2021-12-28 03:04:54,108 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-12-28 03:04:54,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:04:54,297 INFO L263 TraceCheckSpWp]: Trace formula consists of 757 conjuncts, 13 conjunts are in the unsatisfiable core [2021-12-28 03:04:54,301 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-28 03:04:54,920 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2021-12-28 03:04:54,920 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-28 03:04:55,538 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2021-12-28 03:04:55,538 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [667670807] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-28 03:04:55,538 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-28 03:04:55,538 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 19 [2021-12-28 03:04:55,539 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [100218503] [2021-12-28 03:04:55,539 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-28 03:04:55,540 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2021-12-28 03:04:55,540 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 03:04:55,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-12-28 03:04:55,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=263, Unknown=0, NotChecked=0, Total=342 [2021-12-28 03:04:55,544 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 232 out of 328 [2021-12-28 03:04:55,547 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 330 places, 314 transitions, 902 flow. Second operand has 19 states, 19 states have (on average 237.68421052631578) internal successors, (4516), 19 states have internal predecessors, (4516), 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) [2021-12-28 03:04:55,547 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-28 03:04:55,547 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 232 of 328 [2021-12-28 03:04:55,548 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-28 03:04:56,918 INFO L129 PetriNetUnfolder]: 1906/5112 cut-off events. [2021-12-28 03:04:56,918 INFO L130 PetriNetUnfolder]: For 7695/7733 co-relation queries the response was YES. [2021-12-28 03:04:56,933 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13982 conditions, 5112 events. 1906/5112 cut-off events. For 7695/7733 co-relation queries the response was YES. Maximal size of possible extension queue 176. Compared 37169 event pairs, 868 based on Foata normal form. 248/4978 useless extension candidates. Maximal degree in co-relation 13955. Up to 2168 conditions per place. [2021-12-28 03:04:56,949 INFO L132 encePairwiseOnDemand]: 308/328 looper letters, 89 selfloop transitions, 26 changer transitions 75/397 dead transitions. [2021-12-28 03:04:56,949 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 345 places, 397 transitions, 1636 flow [2021-12-28 03:04:56,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-12-28 03:04:56,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2021-12-28 03:04:56,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 3859 transitions. [2021-12-28 03:04:56,953 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.735327743902439 [2021-12-28 03:04:56,953 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 3859 transitions. [2021-12-28 03:04:56,953 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 3859 transitions. [2021-12-28 03:04:56,954 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-28 03:04:56,954 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 3859 transitions. [2021-12-28 03:04:56,957 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 241.1875) internal successors, (3859), 16 states have internal predecessors, (3859), 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) [2021-12-28 03:04:56,962 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 328.0) internal successors, (5576), 17 states have internal predecessors, (5576), 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) [2021-12-28 03:04:56,963 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 328.0) internal successors, (5576), 17 states have internal predecessors, (5576), 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) [2021-12-28 03:04:56,963 INFO L186 Difference]: Start difference. First operand has 330 places, 314 transitions, 902 flow. Second operand 16 states and 3859 transitions. [2021-12-28 03:04:56,963 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 345 places, 397 transitions, 1636 flow [2021-12-28 03:04:56,969 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 345 places, 397 transitions, 1626 flow, removed 5 selfloop flow, removed 0 redundant places. [2021-12-28 03:04:56,973 INFO L242 Difference]: Finished difference. Result has 351 places, 318 transitions, 995 flow [2021-12-28 03:04:56,973 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=328, PETRI_DIFFERENCE_MINUEND_FLOW=898, PETRI_DIFFERENCE_MINUEND_PLACES=330, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=314, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=289, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=995, PETRI_PLACES=351, PETRI_TRANSITIONS=318} [2021-12-28 03:04:56,973 INFO L334 CegarLoopForPetriNet]: 299 programPoint places, 52 predicate places. [2021-12-28 03:04:56,974 INFO L470 AbstractCegarLoop]: Abstraction has has 351 places, 318 transitions, 995 flow [2021-12-28 03:04:56,975 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 237.68421052631578) internal successors, (4516), 19 states have internal predecessors, (4516), 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) [2021-12-28 03:04:56,975 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-28 03:04:56,975 INFO L254 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 03:04:57,007 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-12-28 03:04:57,193 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-28 03:04:57,194 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-12-28 03:04:57,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 03:04:57,194 INFO L85 PathProgramCache]: Analyzing trace with hash 1648296814, now seen corresponding path program 2 times [2021-12-28 03:04:57,194 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 03:04:57,194 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [803843858] [2021-12-28 03:04:57,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 03:04:57,195 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 03:04:57,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:05:06,354 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 03:05:06,354 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 03:05:06,354 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [803843858] [2021-12-28 03:05:06,355 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [803843858] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-28 03:05:06,355 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1305831986] [2021-12-28 03:05:06,355 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-28 03:05:06,355 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-28 03:05:06,355 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 03:05:06,358 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) [2021-12-28 03:05:06,359 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-12-28 03:05:06,617 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-12-28 03:05:06,617 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-28 03:05:06,622 INFO L263 TraceCheckSpWp]: Trace formula consists of 770 conjuncts, 153 conjunts are in the unsatisfiable core [2021-12-28 03:05:06,631 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-28 03:05:19,557 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 03:05:19,557 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-28 03:05:27,088 INFO L353 Elim1Store]: treesize reduction 237, result has 80.6 percent of original size [2021-12-28 03:05:27,089 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 12 select indices, 12 select index equivalence classes, 0 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 66 case distinctions, treesize of input 204 treesize of output 1027