./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 c3fed411 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-tmp.no-commuhash-c3fed41 [2021-12-17 22:53:19,418 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-17 22:53:19,432 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-17 22:53:19,462 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-17 22:53:19,463 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-17 22:53:19,465 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-17 22:53:19,467 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-17 22:53:19,472 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-17 22:53:19,473 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-17 22:53:19,477 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-17 22:53:19,478 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-17 22:53:19,479 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-17 22:53:19,479 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-17 22:53:19,481 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-17 22:53:19,483 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-17 22:53:19,484 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-17 22:53:19,485 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-17 22:53:19,485 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-17 22:53:19,486 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-17 22:53:19,487 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-17 22:53:19,488 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-17 22:53:19,489 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-17 22:53:19,489 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-17 22:53:19,490 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-17 22:53:19,492 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-17 22:53:19,492 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-17 22:53:19,492 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-17 22:53:19,493 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-17 22:53:19,493 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-17 22:53:19,494 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-17 22:53:19,494 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-17 22:53:19,494 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-17 22:53:19,495 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-17 22:53:19,495 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-17 22:53:19,496 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-17 22:53:19,496 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-17 22:53:19,497 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-17 22:53:19,497 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-17 22:53:19,497 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-17 22:53:19,498 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-17 22:53:19,498 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-17 22:53:19,501 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-17 22:53:19,519 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-17 22:53:19,522 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-17 22:53:19,523 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-17 22:53:19,523 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-17 22:53:19,524 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-17 22:53:19,524 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-17 22:53:19,525 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-17 22:53:19,525 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-17 22:53:19,525 INFO L138 SettingsManager]: * Use SBE=true [2021-12-17 22:53:19,525 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-17 22:53:19,526 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-17 22:53:19,526 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-17 22:53:19,526 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-17 22:53:19,527 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-17 22:53:19,527 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-17 22:53:19,527 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-17 22:53:19,527 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-17 22:53:19,527 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-17 22:53:19,527 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-17 22:53:19,528 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-17 22:53:19,528 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-17 22:53:19,528 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-17 22:53:19,528 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-17 22:53:19,529 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-17 22:53:19,529 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-17 22:53:19,529 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-17 22:53:19,529 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-17 22:53:19,529 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-17 22:53:19,530 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-17 22:53:19,530 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-17 22:53:19,530 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-17 22:53:19,530 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-17 22:53:19,530 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-17 22:53:19,531 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-17 22:53:19,531 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f484a00c18d1df7ceedc12992e35584262ebeacdaf88de41be4bc57f4fb5401d [2021-12-17 22:53:19,746 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-17 22:53:19,764 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-17 22:53:19,767 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-17 22:53:19,768 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-17 22:53:19,768 INFO L275 PluginConnector]: CDTParser initialized [2021-12-17 22:53:19,769 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/popl20-commit-2.wvr.c [2021-12-17 22:53:19,851 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b2d9c1433/ebec3aeec4d34f50b5f12576beb8b616/FLAGdd7c5a87d [2021-12-17 22:53:20,269 INFO L306 CDTParser]: Found 1 translation units. [2021-12-17 22:53:20,276 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/popl20-commit-2.wvr.c [2021-12-17 22:53:20,283 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b2d9c1433/ebec3aeec4d34f50b5f12576beb8b616/FLAGdd7c5a87d [2021-12-17 22:53:20,297 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b2d9c1433/ebec3aeec4d34f50b5f12576beb8b616 [2021-12-17 22:53:20,299 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-17 22:53:20,300 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-17 22:53:20,301 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-17 22:53:20,302 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-17 22:53:20,304 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-17 22:53:20,304 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.12 10:53:20" (1/1) ... [2021-12-17 22:53:20,305 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@136b8ac7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 10:53:20, skipping insertion in model container [2021-12-17 22:53:20,306 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.12 10:53:20" (1/1) ... [2021-12-17 22:53:20,311 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-17 22:53:20,337 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-17 22:53:20,552 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] [2021-12-17 22:53:20,567 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-17 22:53:20,575 INFO L203 MainTranslator]: Completed pre-run [2021-12-17 22:53:20,613 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] [2021-12-17 22:53:20,620 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-17 22:53:20,631 INFO L208 MainTranslator]: Completed translation [2021-12-17 22:53:20,633 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 10:53:20 WrapperNode [2021-12-17 22:53:20,633 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-17 22:53:20,635 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-17 22:53:20,635 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-17 22:53:20,635 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-17 22:53:20,641 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 10:53:20" (1/1) ... [2021-12-17 22:53:20,661 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 10:53:20" (1/1) ... [2021-12-17 22:53:20,703 INFO L137 Inliner]: procedures = 26, calls = 93, calls flagged for inlining = 27, calls inlined = 33, statements flattened = 456 [2021-12-17 22:53:20,703 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-17 22:53:20,704 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-17 22:53:20,704 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-17 22:53:20,704 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-17 22:53:20,711 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 10:53:20" (1/1) ... [2021-12-17 22:53:20,712 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 10:53:20" (1/1) ... [2021-12-17 22:53:20,716 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 10:53:20" (1/1) ... [2021-12-17 22:53:20,727 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 10:53:20" (1/1) ... [2021-12-17 22:53:20,734 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 10:53:20" (1/1) ... [2021-12-17 22:53:20,738 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 10:53:20" (1/1) ... [2021-12-17 22:53:20,740 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 10:53:20" (1/1) ... [2021-12-17 22:53:20,742 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-17 22:53:20,743 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-17 22:53:20,743 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-17 22:53:20,745 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-17 22:53:20,747 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 10:53:20" (1/1) ... [2021-12-17 22:53:20,753 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-17 22:53:20,763 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-17 22:53:20,805 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) [2021-12-17 22:53:20,831 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 [2021-12-17 22:53:20,863 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-17 22:53:20,863 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-17 22:53:20,863 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-17 22:53:20,863 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-17 22:53:20,863 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-12-17 22:53:20,864 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-12-17 22:53:20,864 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-12-17 22:53:20,864 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-12-17 22:53:20,864 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-12-17 22:53:20,864 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-12-17 22:53:20,864 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2021-12-17 22:53:20,864 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2021-12-17 22:53:20,865 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-17 22:53:20,865 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-12-17 22:53:20,865 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-12-17 22:53:20,865 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-17 22:53:20,866 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-17 22:53:20,866 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-17 22:53:20,866 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-17 22:53:20,868 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-12-17 22:53:20,984 INFO L236 CfgBuilder]: Building ICFG [2021-12-17 22:53:20,986 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-17 22:53:21,520 INFO L277 CfgBuilder]: Performing block encoding [2021-12-17 22:53:21,762 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-17 22:53:21,763 INFO L301 CfgBuilder]: Removed 8 assume(true) statements. [2021-12-17 22:53:21,765 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 10:53:21 BoogieIcfgContainer [2021-12-17 22:53:21,765 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-17 22:53:21,766 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-17 22:53:21,766 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-17 22:53:21,770 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-17 22:53:21,770 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.12 10:53:20" (1/3) ... [2021-12-17 22:53:21,771 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57e52150 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.12 10:53:21, skipping insertion in model container [2021-12-17 22:53:21,771 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 10:53:20" (2/3) ... [2021-12-17 22:53:21,771 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57e52150 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.12 10:53:21, skipping insertion in model container [2021-12-17 22:53:21,771 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 10:53:21" (3/3) ... [2021-12-17 22:53:21,773 INFO L111 eAbstractionObserver]: Analyzing ICFG popl20-commit-2.wvr.c [2021-12-17 22:53:21,777 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-12-17 22:53:21,777 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-17 22:53:21,777 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-17 22:53:21,777 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-12-17 22:53:21,824 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~nondet1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:53:21,825 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~nondet1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:53:21,825 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~nondet1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:53:21,825 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~nondet1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:53:21,825 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:53:21,825 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:53:21,825 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:53:21,826 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:53:21,826 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~nondet1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:53:21,826 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~nondet1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:53:21,826 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~nondet1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:53:21,826 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~nondet1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:53:21,826 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:53:21,826 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:53:21,827 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:53:21,827 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:53:21,827 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:53:21,827 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~short3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:53:21,828 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:53:21,828 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:53:21,828 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:53:21,828 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:53:21,828 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:53:21,828 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~short3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:53:21,829 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:53:21,829 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:53:21,829 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:53:21,829 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:53:21,829 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:53:21,829 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:53:21,830 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:53:21,830 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:53:21,830 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:53:21,830 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:53:21,830 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:53:21,830 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:53:21,830 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:53:21,831 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:53:21,831 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:53:21,831 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:53:21,831 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:53:21,832 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~short10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:53:21,832 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:53:21,832 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:53:21,832 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:53:21,832 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:53:21,832 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:53:21,833 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~short10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:53:21,833 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:53:21,833 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:53:21,833 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:53:21,833 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:53:21,834 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:53:21,834 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:53:21,835 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:53:21,835 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~short13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:53:21,835 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:53:21,835 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:53:21,836 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:53:21,836 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:53:21,836 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:53:21,836 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~short13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:53:21,836 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:53:21,837 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:53:21,838 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:53:21,838 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem15#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:53:21,838 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post16#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:53:21,838 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:53:21,838 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:53:21,838 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem15#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:53:21,838 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post16#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:53:21,839 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:53:21,839 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~nondet17#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:53:21,839 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~nondet17#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:53:21,840 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~nondet17#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:53:21,840 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~nondet17#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:53:21,842 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:53:21,842 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:53:21,843 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:53:21,844 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:53:21,844 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~nondet17#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:53:21,844 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~nondet17#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:53:21,844 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~nondet17#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:53:21,844 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~nondet17#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:53:21,844 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem18#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:53:21,850 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post20#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:53:21,850 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:53:21,850 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem18#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:53:21,850 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~short19#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:53:21,850 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:53:21,851 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem18#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:53:21,851 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post20#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:53:21,851 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:53:21,851 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem18#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:53:21,851 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~short19#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:53:21,851 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:53:21,852 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:53:21,852 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post22#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:53:21,852 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem21#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:53:21,852 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:53:21,852 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:53:21,852 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post22#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:53:21,852 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem21#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:53:21,853 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:53:21,853 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~nondet23#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:53:21,853 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~nondet23#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:53:21,853 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~nondet23#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:53:21,853 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~nondet23#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:53:21,853 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:53:21,854 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:53:21,854 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:53:21,854 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:53:21,854 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~nondet23#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:53:21,854 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~nondet23#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:53:21,854 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~nondet23#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:53:21,854 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~nondet23#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:53:21,854 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem24#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:53:21,855 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:53:21,855 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post26#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:53:21,855 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~short25#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:53:21,855 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem24#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:53:21,855 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:53:21,856 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem24#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:53:21,856 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:53:21,856 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post26#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:53:21,856 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~short25#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:53:21,856 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem24#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:53:21,856 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:53:21,858 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem27#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:53:21,858 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:53:21,858 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post28#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:53:21,859 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:53:21,859 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem27#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:53:21,859 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:53:21,859 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post28#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:53:21,859 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:53:21,859 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#t~nondet29#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:53:21,860 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#t~nondet29#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:53:21,860 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#t~nondet29#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:53:21,860 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#t~nondet29#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:53:21,860 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:53:21,860 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:53:21,860 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:53:21,860 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:53:21,861 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#t~nondet29#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:53:21,861 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#t~nondet29#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:53:21,861 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#t~nondet29#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:53:21,861 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#t~nondet29#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:53:21,862 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#t~post31#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:53:21,862 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:53:21,862 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#t~mem30#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:53:21,862 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:53:21,862 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#t~post31#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:53:21,862 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:53:21,888 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#t~mem30#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:53:21,888 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:53:21,889 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#t~mem32#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:53:21,889 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#t~mem32#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:53:21,889 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:53:21,889 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#t~post34#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:53:21,889 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#t~short33#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:53:21,890 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:53:21,890 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#t~mem32#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:53:21,890 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#t~mem32#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:53:21,891 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:53:21,891 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#t~post34#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:53:21,891 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#t~short33#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:53:21,891 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:53:21,894 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:53:21,894 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~short19#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:53:21,894 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:53:21,894 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem21#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:53:21,895 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:53:21,895 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~nondet17#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:53:21,895 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:53:21,895 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post22#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:53:21,895 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post20#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:53:21,895 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem18#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:53:21,896 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~nondet23#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:53:21,896 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:53:21,896 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post26#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:53:21,897 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:53:21,897 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:53:21,897 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:53:21,897 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~short25#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:53:21,897 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post28#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:53:21,897 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem24#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:53:21,898 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem27#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:53:21,898 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:53:21,898 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:53:21,898 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:53:21,898 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:53:21,899 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem15#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:53:21,899 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:53:21,899 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~short10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:53:21,899 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~short13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:53:21,899 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:53:21,899 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:53:21,899 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:53:21,900 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~nondet1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:53:21,900 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:53:21,900 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:53:21,900 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:53:21,900 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post16#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:53:21,900 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~short3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:53:21,901 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:53:21,901 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:53:21,901 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:53:21,901 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:53:21,902 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:53:21,902 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#t~mem30#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:53:21,902 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#t~post34#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:53:21,902 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#t~mem32#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:53:21,902 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:53:21,902 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#t~nondet29#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:53:21,902 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#t~post31#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:53:21,903 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#t~short33#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:53:21,903 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:53:21,905 INFO L148 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2021-12-17 22:53:21,942 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-17 22:53:21,948 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 [2021-12-17 22:53:21,948 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-12-17 22:53:21,960 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 316 places, 328 transitions, 688 flow [2021-12-17 22:53:22,029 INFO L129 PetriNetUnfolder]: 25/324 cut-off events. [2021-12-17 22:53:22,030 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2021-12-17 22:53:22,035 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. [2021-12-17 22:53:22,036 INFO L82 GeneralOperation]: Start removeDead. Operand has 316 places, 328 transitions, 688 flow [2021-12-17 22:53:22,042 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 299 places, 311 transitions, 646 flow [2021-12-17 22:53:22,103 INFO L129 PetriNetUnfolder]: 25/310 cut-off events. [2021-12-17 22:53:22,105 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2021-12-17 22:53:22,105 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-17 22:53:22,106 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] [2021-12-17 22:53:22,107 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)] === [2021-12-17 22:53:22,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 22:53:22,112 INFO L85 PathProgramCache]: Analyzing trace with hash 1254717550, now seen corresponding path program 1 times [2021-12-17 22:53:22,119 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 22:53:22,119 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1354808785] [2021-12-17 22:53:22,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 22:53:22,120 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 22:53:22,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 22:53:22,395 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 22:53:22,395 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 22:53:22,395 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1354808785] [2021-12-17 22:53:22,396 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1354808785] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 22:53:22,396 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 22:53:22,396 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-17 22:53:22,397 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [552277011] [2021-12-17 22:53:22,397 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 22:53:22,405 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-12-17 22:53:22,405 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 22:53:22,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-12-17 22:53:22,431 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-17 22:53:22,435 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 290 out of 328 [2021-12-17 22:53:22,439 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) [2021-12-17 22:53:22,440 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-17 22:53:22,440 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 290 of 328 [2021-12-17 22:53:22,441 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-17 22:53:22,619 INFO L129 PetriNetUnfolder]: 285/660 cut-off events. [2021-12-17 22:53:22,620 INFO L130 PetriNetUnfolder]: For 89/90 co-relation queries the response was YES. [2021-12-17 22:53:22,621 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. [2021-12-17 22:53:22,626 INFO L132 encePairwiseOnDemand]: 311/328 looper letters, 20 selfloop transitions, 0 changer transitions 9/294 dead transitions. [2021-12-17 22:53:22,626 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 300 places, 294 transitions, 652 flow [2021-12-17 22:53:22,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-17 22:53:22,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2021-12-17 22:53:22,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 617 transitions. [2021-12-17 22:53:22,639 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9405487804878049 [2021-12-17 22:53:22,639 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 617 transitions. [2021-12-17 22:53:22,640 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 617 transitions. [2021-12-17 22:53:22,642 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-17 22:53:22,644 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 617 transitions. [2021-12-17 22:53:22,648 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) [2021-12-17 22:53:22,654 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) [2021-12-17 22:53:22,655 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) [2021-12-17 22:53:22,657 INFO L186 Difference]: Start difference. First operand has 299 places, 311 transitions, 646 flow. Second operand 2 states and 617 transitions. [2021-12-17 22:53:22,657 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 300 places, 294 transitions, 652 flow [2021-12-17 22:53:22,661 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 292 places, 294 transitions, 636 flow, removed 0 selfloop flow, removed 8 redundant places. [2021-12-17 22:53:22,667 INFO L242 Difference]: Finished difference. Result has 292 places, 285 transitions, 578 flow [2021-12-17 22:53:22,669 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} [2021-12-17 22:53:22,672 INFO L334 CegarLoopForPetriNet]: 299 programPoint places, -7 predicate places. [2021-12-17 22:53:22,672 INFO L470 AbstractCegarLoop]: Abstraction has has 292 places, 285 transitions, 578 flow [2021-12-17 22:53:22,673 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) [2021-12-17 22:53:22,673 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-17 22:53:22,673 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] [2021-12-17 22:53:22,673 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-17 22:53:22,673 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)] === [2021-12-17 22:53:22,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 22:53:22,674 INFO L85 PathProgramCache]: Analyzing trace with hash 341190117, now seen corresponding path program 1 times [2021-12-17 22:53:22,674 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 22:53:22,674 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [294747883] [2021-12-17 22:53:22,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 22:53:22,674 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 22:53:22,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 22:53:22,946 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 22:53:22,947 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 22:53:22,947 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [294747883] [2021-12-17 22:53:22,947 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [294747883] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 22:53:22,947 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 22:53:22,947 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-17 22:53:22,948 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1694379006] [2021-12-17 22:53:22,948 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 22:53:22,949 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-17 22:53:22,949 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 22:53:22,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-17 22:53:22,950 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-17 22:53:22,953 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 243 out of 328 [2021-12-17 22:53:22,954 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) [2021-12-17 22:53:22,954 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-17 22:53:22,955 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 243 of 328 [2021-12-17 22:53:22,955 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-17 22:53:23,209 INFO L129 PetriNetUnfolder]: 309/798 cut-off events. [2021-12-17 22:53:23,210 INFO L130 PetriNetUnfolder]: For 22/22 co-relation queries the response was YES. [2021-12-17 22:53:23,213 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. [2021-12-17 22:53:23,217 INFO L132 encePairwiseOnDemand]: 320/328 looper letters, 64 selfloop transitions, 5 changer transitions 4/300 dead transitions. [2021-12-17 22:53:23,217 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 287 places, 300 transitions, 761 flow [2021-12-17 22:53:23,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-17 22:53:23,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-12-17 22:53:23,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1289 transitions. [2021-12-17 22:53:23,221 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7859756097560976 [2021-12-17 22:53:23,221 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1289 transitions. [2021-12-17 22:53:23,221 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1289 transitions. [2021-12-17 22:53:23,222 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-17 22:53:23,222 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1289 transitions. [2021-12-17 22:53:23,224 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) [2021-12-17 22:53:23,228 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) [2021-12-17 22:53:23,229 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) [2021-12-17 22:53:23,229 INFO L186 Difference]: Start difference. First operand has 292 places, 285 transitions, 578 flow. Second operand 5 states and 1289 transitions. [2021-12-17 22:53:23,229 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 287 places, 300 transitions, 761 flow [2021-12-17 22:53:23,231 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 287 places, 300 transitions, 761 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-12-17 22:53:23,246 INFO L242 Difference]: Finished difference. Result has 290 places, 289 transitions, 615 flow [2021-12-17 22:53:23,246 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} [2021-12-17 22:53:23,247 INFO L334 CegarLoopForPetriNet]: 299 programPoint places, -9 predicate places. [2021-12-17 22:53:23,247 INFO L470 AbstractCegarLoop]: Abstraction has has 290 places, 289 transitions, 615 flow [2021-12-17 22:53:23,248 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) [2021-12-17 22:53:23,248 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-17 22:53:23,248 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] [2021-12-17 22:53:23,248 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-17 22:53:23,249 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)] === [2021-12-17 22:53:23,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 22:53:23,250 INFO L85 PathProgramCache]: Analyzing trace with hash 1971396133, now seen corresponding path program 1 times [2021-12-17 22:53:23,250 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 22:53:23,250 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [948382807] [2021-12-17 22:53:23,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 22:53:23,251 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 22:53:23,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 22:53:23,415 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 22:53:23,415 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 22:53:23,415 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [948382807] [2021-12-17 22:53:23,416 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [948382807] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 22:53:23,416 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 22:53:23,416 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-17 22:53:23,416 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [926006853] [2021-12-17 22:53:23,416 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 22:53:23,417 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-17 22:53:23,417 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 22:53:23,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-17 22:53:23,417 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-12-17 22:53:23,419 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 240 out of 328 [2021-12-17 22:53:23,420 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) [2021-12-17 22:53:23,421 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-17 22:53:23,421 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 240 of 328 [2021-12-17 22:53:23,421 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-17 22:53:23,691 INFO L129 PetriNetUnfolder]: 323/953 cut-off events. [2021-12-17 22:53:23,691 INFO L130 PetriNetUnfolder]: For 118/119 co-relation queries the response was YES. [2021-12-17 22:53:23,694 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. [2021-12-17 22:53:23,698 INFO L132 encePairwiseOnDemand]: 315/328 looper letters, 70 selfloop transitions, 8 changer transitions 49/342 dead transitions. [2021-12-17 22:53:23,698 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 296 places, 342 transitions, 993 flow [2021-12-17 22:53:23,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-17 22:53:23,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-12-17 22:53:23,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 2285 transitions. [2021-12-17 22:53:23,703 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7740514905149052 [2021-12-17 22:53:23,703 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 2285 transitions. [2021-12-17 22:53:23,703 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 2285 transitions. [2021-12-17 22:53:23,704 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-17 22:53:23,705 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 2285 transitions. [2021-12-17 22:53:23,709 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) [2021-12-17 22:53:23,714 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) [2021-12-17 22:53:23,716 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) [2021-12-17 22:53:23,716 INFO L186 Difference]: Start difference. First operand has 290 places, 289 transitions, 615 flow. Second operand 9 states and 2285 transitions. [2021-12-17 22:53:23,716 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 296 places, 342 transitions, 993 flow [2021-12-17 22:53:23,719 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 293 places, 342 transitions, 982 flow, removed 2 selfloop flow, removed 3 redundant places. [2021-12-17 22:53:23,723 INFO L242 Difference]: Finished difference. Result has 295 places, 290 transitions, 642 flow [2021-12-17 22:53:23,723 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} [2021-12-17 22:53:23,724 INFO L334 CegarLoopForPetriNet]: 299 programPoint places, -4 predicate places. [2021-12-17 22:53:23,724 INFO L470 AbstractCegarLoop]: Abstraction has has 295 places, 290 transitions, 642 flow [2021-12-17 22:53:23,725 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) [2021-12-17 22:53:23,725 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-17 22:53:23,725 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] [2021-12-17 22:53:23,725 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-17 22:53:23,726 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)] === [2021-12-17 22:53:23,726 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 22:53:23,726 INFO L85 PathProgramCache]: Analyzing trace with hash -156769024, now seen corresponding path program 1 times [2021-12-17 22:53:23,726 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 22:53:23,726 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [429137096] [2021-12-17 22:53:23,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 22:53:23,727 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 22:53:23,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 22:53:23,846 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-12-17 22:53:23,847 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 22:53:23,847 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [429137096] [2021-12-17 22:53:23,847 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [429137096] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 22:53:23,847 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 22:53:23,847 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-17 22:53:23,848 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [69535139] [2021-12-17 22:53:23,848 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 22:53:23,848 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-17 22:53:23,848 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 22:53:23,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-17 22:53:23,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-17 22:53:23,850 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 286 out of 328 [2021-12-17 22:53:23,851 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 295 places, 290 transitions, 642 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) [2021-12-17 22:53:23,851 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-17 22:53:23,851 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 286 of 328 [2021-12-17 22:53:23,851 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-17 22:53:23,999 INFO L129 PetriNetUnfolder]: 347/866 cut-off events. [2021-12-17 22:53:23,999 INFO L130 PetriNetUnfolder]: For 262/263 co-relation queries the response was YES. [2021-12-17 22:53:24,001 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1772 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 2830 event pairs, 65 based on Foata normal form. 23/855 useless extension candidates. Maximal degree in co-relation 1765. Up to 397 conditions per place. [2021-12-17 22:53:24,004 INFO L132 encePairwiseOnDemand]: 325/328 looper letters, 38 selfloop transitions, 2 changer transitions 0/302 dead transitions. [2021-12-17 22:53:24,004 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 295 places, 302 transitions, 763 flow [2021-12-17 22:53:24,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-17 22:53:24,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-12-17 22:53:24,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 896 transitions. [2021-12-17 22:53:24,006 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9105691056910569 [2021-12-17 22:53:24,006 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 896 transitions. [2021-12-17 22:53:24,006 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 896 transitions. [2021-12-17 22:53:24,007 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-17 22:53:24,007 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 896 transitions. [2021-12-17 22:53:24,008 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 298.6666666666667) internal successors, (896), 3 states have internal predecessors, (896), 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) [2021-12-17 22:53:24,010 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) [2021-12-17 22:53:24,011 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) [2021-12-17 22:53:24,011 INFO L186 Difference]: Start difference. First operand has 295 places, 290 transitions, 642 flow. Second operand 3 states and 896 transitions. [2021-12-17 22:53:24,011 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 295 places, 302 transitions, 763 flow [2021-12-17 22:53:24,013 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 290 places, 302 transitions, 749 flow, removed 0 selfloop flow, removed 5 redundant places. [2021-12-17 22:53:24,015 INFO L242 Difference]: Finished difference. Result has 291 places, 290 transitions, 636 flow [2021-12-17 22:53:24,015 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=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=287, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=636, PETRI_PLACES=291, PETRI_TRANSITIONS=290} [2021-12-17 22:53:24,016 INFO L334 CegarLoopForPetriNet]: 299 programPoint places, -8 predicate places. [2021-12-17 22:53:24,016 INFO L470 AbstractCegarLoop]: Abstraction has has 291 places, 290 transitions, 636 flow [2021-12-17 22:53:24,017 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) [2021-12-17 22:53:24,017 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-17 22:53:24,017 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] [2021-12-17 22:53:24,017 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-17 22:53:24,017 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)] === [2021-12-17 22:53:24,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 22:53:24,018 INFO L85 PathProgramCache]: Analyzing trace with hash -2041394514, now seen corresponding path program 1 times [2021-12-17 22:53:24,018 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 22:53:24,018 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [562078831] [2021-12-17 22:53:24,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 22:53:24,019 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 22:53:24,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 22:53:24,122 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-12-17 22:53:24,122 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 22:53:24,122 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [562078831] [2021-12-17 22:53:24,122 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [562078831] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 22:53:24,122 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 22:53:24,123 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-17 22:53:24,123 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1682595077] [2021-12-17 22:53:24,123 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 22:53:24,123 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-17 22:53:24,123 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 22:53:24,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-17 22:53:24,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-17 22:53:24,125 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 283 out of 328 [2021-12-17 22:53:24,126 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 291 places, 290 transitions, 636 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) [2021-12-17 22:53:24,126 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-17 22:53:24,126 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 283 of 328 [2021-12-17 22:53:24,126 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-17 22:53:24,267 INFO L129 PetriNetUnfolder]: 326/837 cut-off events. [2021-12-17 22:53:24,267 INFO L130 PetriNetUnfolder]: For 315/316 co-relation queries the response was YES. [2021-12-17 22:53:24,269 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1764 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 2690 event pairs, 56 based on Foata normal form. 22/828 useless extension candidates. Maximal degree in co-relation 1756. Up to 397 conditions per place. [2021-12-17 22:53:24,272 INFO L132 encePairwiseOnDemand]: 321/328 looper letters, 37 selfloop transitions, 6 changer transitions 0/302 dead transitions. [2021-12-17 22:53:24,272 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 294 places, 302 transitions, 765 flow [2021-12-17 22:53:24,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-17 22:53:24,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-12-17 22:53:24,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1174 transitions. [2021-12-17 22:53:24,275 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8948170731707317 [2021-12-17 22:53:24,275 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 1174 transitions. [2021-12-17 22:53:24,275 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 1174 transitions. [2021-12-17 22:53:24,275 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-17 22:53:24,275 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 1174 transitions. [2021-12-17 22:53:24,278 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 293.5) internal successors, (1174), 4 states have internal predecessors, (1174), 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) [2021-12-17 22:53:24,280 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) [2021-12-17 22:53:24,281 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) [2021-12-17 22:53:24,282 INFO L186 Difference]: Start difference. First operand has 291 places, 290 transitions, 636 flow. Second operand 4 states and 1174 transitions. [2021-12-17 22:53:24,282 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 294 places, 302 transitions, 765 flow [2021-12-17 22:53:24,285 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 293 places, 302 transitions, 763 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-12-17 22:53:24,287 INFO L242 Difference]: Finished difference. Result has 294 places, 290 transitions, 650 flow [2021-12-17 22:53:24,288 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=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=283, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=650, PETRI_PLACES=294, PETRI_TRANSITIONS=290} [2021-12-17 22:53:24,290 INFO L334 CegarLoopForPetriNet]: 299 programPoint places, -5 predicate places. [2021-12-17 22:53:24,290 INFO L470 AbstractCegarLoop]: Abstraction has has 294 places, 290 transitions, 650 flow [2021-12-17 22:53:24,291 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) [2021-12-17 22:53:24,291 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-17 22:53:24,291 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] [2021-12-17 22:53:24,291 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-17 22:53:24,291 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)] === [2021-12-17 22:53:24,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 22:53:24,292 INFO L85 PathProgramCache]: Analyzing trace with hash 1810845900, now seen corresponding path program 1 times [2021-12-17 22:53:24,292 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 22:53:24,292 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1785846652] [2021-12-17 22:53:24,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 22:53:24,292 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 22:53:24,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 22:53:24,401 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-12-17 22:53:24,401 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 22:53:24,402 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1785846652] [2021-12-17 22:53:24,402 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1785846652] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 22:53:24,403 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 22:53:24,403 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-17 22:53:24,403 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [111087950] [2021-12-17 22:53:24,403 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 22:53:24,403 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-17 22:53:24,404 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 22:53:24,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-17 22:53:24,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-17 22:53:24,405 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 286 out of 328 [2021-12-17 22:53:24,406 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 294 places, 290 transitions, 650 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) [2021-12-17 22:53:24,406 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-17 22:53:24,406 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 286 of 328 [2021-12-17 22:53:24,406 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-17 22:53:24,563 INFO L129 PetriNetUnfolder]: 422/985 cut-off events. [2021-12-17 22:53:24,564 INFO L130 PetriNetUnfolder]: For 536/537 co-relation queries the response was YES. [2021-12-17 22:53:24,566 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2247 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 3557 event pairs, 80 based on Foata normal form. 19/973 useless extension candidates. Maximal degree in co-relation 2238. Up to 404 conditions per place. [2021-12-17 22:53:24,570 INFO L132 encePairwiseOnDemand]: 325/328 looper letters, 36 selfloop transitions, 2 changer transitions 4/304 dead transitions. [2021-12-17 22:53:24,571 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 296 places, 304 transitions, 781 flow [2021-12-17 22:53:24,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-17 22:53:24,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-12-17 22:53:24,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 901 transitions. [2021-12-17 22:53:24,573 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.915650406504065 [2021-12-17 22:53:24,573 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 901 transitions. [2021-12-17 22:53:24,573 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 901 transitions. [2021-12-17 22:53:24,573 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-17 22:53:24,573 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 901 transitions. [2021-12-17 22:53:24,575 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 300.3333333333333) internal successors, (901), 3 states have internal predecessors, (901), 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) [2021-12-17 22:53:24,576 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) [2021-12-17 22:53:24,576 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) [2021-12-17 22:53:24,577 INFO L186 Difference]: Start difference. First operand has 294 places, 290 transitions, 650 flow. Second operand 3 states and 901 transitions. [2021-12-17 22:53:24,577 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 296 places, 304 transitions, 781 flow [2021-12-17 22:53:24,582 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 294 places, 304 transitions, 771 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-12-17 22:53:24,586 INFO L242 Difference]: Finished difference. Result has 295 places, 290 transitions, 648 flow [2021-12-17 22:53:24,586 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=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=287, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=648, PETRI_PLACES=295, PETRI_TRANSITIONS=290} [2021-12-17 22:53:24,588 INFO L334 CegarLoopForPetriNet]: 299 programPoint places, -4 predicate places. [2021-12-17 22:53:24,589 INFO L470 AbstractCegarLoop]: Abstraction has has 295 places, 290 transitions, 648 flow [2021-12-17 22:53:24,589 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) [2021-12-17 22:53:24,589 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-17 22:53:24,589 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] [2021-12-17 22:53:24,589 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-17 22:53:24,590 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)] === [2021-12-17 22:53:24,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 22:53:24,591 INFO L85 PathProgramCache]: Analyzing trace with hash -212137450, now seen corresponding path program 1 times [2021-12-17 22:53:24,591 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 22:53:24,591 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [832965052] [2021-12-17 22:53:24,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 22:53:24,591 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 22:53:24,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 22:53:24,684 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-12-17 22:53:24,684 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 22:53:24,684 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [832965052] [2021-12-17 22:53:24,684 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [832965052] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 22:53:24,684 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 22:53:24,684 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-17 22:53:24,684 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [86322440] [2021-12-17 22:53:24,685 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 22:53:24,685 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-17 22:53:24,685 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 22:53:24,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-17 22:53:24,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-12-17 22:53:24,686 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 240 out of 328 [2021-12-17 22:53:24,687 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 295 places, 290 transitions, 648 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) [2021-12-17 22:53:24,687 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-17 22:53:24,687 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 240 of 328 [2021-12-17 22:53:24,687 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-17 22:53:24,979 INFO L129 PetriNetUnfolder]: 547/1256 cut-off events. [2021-12-17 22:53:24,979 INFO L130 PetriNetUnfolder]: For 628/630 co-relation queries the response was YES. [2021-12-17 22:53:24,983 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3063 conditions, 1256 events. 547/1256 cut-off events. For 628/630 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 4627 event pairs, 321 based on Foata normal form. 15/1230 useless extension candidates. Maximal degree in co-relation 3053. Up to 619 conditions per place. [2021-12-17 22:53:24,988 INFO L132 encePairwiseOnDemand]: 318/328 looper letters, 71 selfloop transitions, 8 changer transitions 43/337 dead transitions. [2021-12-17 22:53:24,988 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 303 places, 337 transitions, 1016 flow [2021-12-17 22:53:24,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-17 22:53:24,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-12-17 22:53:24,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 2278 transitions. [2021-12-17 22:53:24,992 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.771680216802168 [2021-12-17 22:53:24,992 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 2278 transitions. [2021-12-17 22:53:24,992 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 2278 transitions. [2021-12-17 22:53:24,993 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-17 22:53:24,993 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 2278 transitions. [2021-12-17 22:53:24,996 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) [2021-12-17 22:53:25,000 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) [2021-12-17 22:53:25,001 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) [2021-12-17 22:53:25,001 INFO L186 Difference]: Start difference. First operand has 295 places, 290 transitions, 648 flow. Second operand 9 states and 2278 transitions. [2021-12-17 22:53:25,001 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 303 places, 337 transitions, 1016 flow [2021-12-17 22:53:25,004 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 302 places, 337 transitions, 1014 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-12-17 22:53:25,007 INFO L242 Difference]: Finished difference. Result has 304 places, 291 transitions, 674 flow [2021-12-17 22:53:25,008 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} [2021-12-17 22:53:25,008 INFO L334 CegarLoopForPetriNet]: 299 programPoint places, 5 predicate places. [2021-12-17 22:53:25,008 INFO L470 AbstractCegarLoop]: Abstraction has has 304 places, 291 transitions, 674 flow [2021-12-17 22:53:25,009 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) [2021-12-17 22:53:25,009 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-17 22:53:25,009 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] [2021-12-17 22:53:25,009 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-17 22:53:25,009 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)] === [2021-12-17 22:53:25,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 22:53:25,010 INFO L85 PathProgramCache]: Analyzing trace with hash 913838455, now seen corresponding path program 1 times [2021-12-17 22:53:25,010 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 22:53:25,010 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [827939230] [2021-12-17 22:53:25,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 22:53:25,010 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 22:53:25,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 22:53:25,094 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-12-17 22:53:25,094 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 22:53:25,094 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [827939230] [2021-12-17 22:53:25,094 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [827939230] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 22:53:25,094 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 22:53:25,094 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-17 22:53:25,094 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1407907857] [2021-12-17 22:53:25,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 22:53:25,095 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-17 22:53:25,095 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 22:53:25,095 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-17 22:53:25,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-12-17 22:53:25,097 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 240 out of 328 [2021-12-17 22:53:25,098 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) [2021-12-17 22:53:25,098 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-17 22:53:25,098 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 240 of 328 [2021-12-17 22:53:25,099 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-17 22:53:25,392 INFO L129 PetriNetUnfolder]: 430/1051 cut-off events. [2021-12-17 22:53:25,392 INFO L130 PetriNetUnfolder]: For 544/546 co-relation queries the response was YES. [2021-12-17 22:53:25,395 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 3598 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. [2021-12-17 22:53:25,400 INFO L132 encePairwiseOnDemand]: 318/328 looper letters, 72 selfloop transitions, 8 changer transitions 23/318 dead transitions. [2021-12-17 22:53:25,400 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 310 places, 318 transitions, 948 flow [2021-12-17 22:53:25,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-17 22:53:25,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-12-17 22:53:25,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 2258 transitions. [2021-12-17 22:53:25,404 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7649051490514905 [2021-12-17 22:53:25,404 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 2258 transitions. [2021-12-17 22:53:25,405 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 2258 transitions. [2021-12-17 22:53:25,405 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-17 22:53:25,406 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 2258 transitions. [2021-12-17 22:53:25,409 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) [2021-12-17 22:53:25,414 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) [2021-12-17 22:53:25,414 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) [2021-12-17 22:53:25,415 INFO L186 Difference]: Start difference. First operand has 304 places, 291 transitions, 674 flow. Second operand 9 states and 2258 transitions. [2021-12-17 22:53:25,415 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 310 places, 318 transitions, 948 flow [2021-12-17 22:53:25,418 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 304 places, 318 transitions, 930 flow, removed 1 selfloop flow, removed 6 redundant places. [2021-12-17 22:53:25,421 INFO L242 Difference]: Finished difference. Result has 306 places, 292 transitions, 684 flow [2021-12-17 22:53:25,421 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} [2021-12-17 22:53:25,422 INFO L334 CegarLoopForPetriNet]: 299 programPoint places, 7 predicate places. [2021-12-17 22:53:25,422 INFO L470 AbstractCegarLoop]: Abstraction has has 306 places, 292 transitions, 684 flow [2021-12-17 22:53:25,423 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) [2021-12-17 22:53:25,423 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-17 22:53:25,423 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] [2021-12-17 22:53:25,423 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-17 22:53:25,423 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)] === [2021-12-17 22:53:25,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 22:53:25,424 INFO L85 PathProgramCache]: Analyzing trace with hash 1043615774, now seen corresponding path program 1 times [2021-12-17 22:53:25,424 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 22:53:25,424 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [376137564] [2021-12-17 22:53:25,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 22:53:25,424 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 22:53:25,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 22:53:25,502 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-12-17 22:53:25,503 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 22:53:25,503 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [376137564] [2021-12-17 22:53:25,503 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [376137564] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 22:53:25,503 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 22:53:25,503 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-17 22:53:25,503 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [77862216] [2021-12-17 22:53:25,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 22:53:25,504 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-17 22:53:25,504 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 22:53:25,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-17 22:53:25,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-12-17 22:53:25,506 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 240 out of 328 [2021-12-17 22:53:25,507 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) [2021-12-17 22:53:25,507 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-17 22:53:25,507 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 240 of 328 [2021-12-17 22:53:25,507 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-17 22:53:25,780 INFO L129 PetriNetUnfolder]: 440/1036 cut-off events. [2021-12-17 22:53:25,780 INFO L130 PetriNetUnfolder]: For 541/543 co-relation queries the response was YES. [2021-12-17 22:53:25,783 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 3599 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. [2021-12-17 22:53:25,787 INFO L132 encePairwiseOnDemand]: 320/328 looper letters, 75 selfloop transitions, 6 changer transitions 14/310 dead transitions. [2021-12-17 22:53:25,788 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 310 places, 310 transitions, 934 flow [2021-12-17 22:53:25,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-17 22:53:25,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-12-17 22:53:25,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1769 transitions. [2021-12-17 22:53:25,791 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7704703832752613 [2021-12-17 22:53:25,791 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1769 transitions. [2021-12-17 22:53:25,791 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1769 transitions. [2021-12-17 22:53:25,792 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-17 22:53:25,793 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1769 transitions. [2021-12-17 22:53:25,796 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) [2021-12-17 22:53:25,798 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) [2021-12-17 22:53:25,798 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) [2021-12-17 22:53:25,798 INFO L186 Difference]: Start difference. First operand has 306 places, 292 transitions, 684 flow. Second operand 7 states and 1769 transitions. [2021-12-17 22:53:25,799 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 310 places, 310 transitions, 934 flow [2021-12-17 22:53:25,800 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 304 places, 310 transitions, 914 flow, removed 2 selfloop flow, removed 6 redundant places. [2021-12-17 22:53:25,803 INFO L242 Difference]: Finished difference. Result has 306 places, 293 transitions, 688 flow [2021-12-17 22:53:25,803 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} [2021-12-17 22:53:25,804 INFO L334 CegarLoopForPetriNet]: 299 programPoint places, 7 predicate places. [2021-12-17 22:53:25,804 INFO L470 AbstractCegarLoop]: Abstraction has has 306 places, 293 transitions, 688 flow [2021-12-17 22:53:25,805 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) [2021-12-17 22:53:25,805 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-17 22:53:25,805 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] [2021-12-17 22:53:25,805 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-12-17 22:53:25,805 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)] === [2021-12-17 22:53:25,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 22:53:25,806 INFO L85 PathProgramCache]: Analyzing trace with hash -1931276737, now seen corresponding path program 1 times [2021-12-17 22:53:25,806 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 22:53:25,806 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [239868899] [2021-12-17 22:53:25,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 22:53:25,806 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 22:53:25,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 22:53:25,997 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-12-17 22:53:25,997 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 22:53:25,997 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [239868899] [2021-12-17 22:53:25,997 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [239868899] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 22:53:25,997 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 22:53:25,997 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-17 22:53:25,997 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [327375048] [2021-12-17 22:53:25,997 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 22:53:25,998 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-17 22:53:25,998 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 22:53:25,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-17 22:53:25,999 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-17 22:53:25,999 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 286 out of 328 [2021-12-17 22:53:26,000 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 306 places, 293 transitions, 688 flow. Second operand has 3 states, 3 states have (on average 292.0) internal successors, (876), 3 states have internal predecessors, (876), 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) [2021-12-17 22:53:26,000 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-17 22:53:26,000 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 286 of 328 [2021-12-17 22:53:26,000 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-17 22:53:26,122 INFO L129 PetriNetUnfolder]: 212/723 cut-off events. [2021-12-17 22:53:26,122 INFO L130 PetriNetUnfolder]: For 399/407 co-relation queries the response was YES. [2021-12-17 22:53:26,124 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1431 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 2093 event pairs, 95 based on Foata normal form. 4/689 useless extension candidates. Maximal degree in co-relation 1417. Up to 294 conditions per place. [2021-12-17 22:53:26,126 INFO L132 encePairwiseOnDemand]: 325/328 looper letters, 27 selfloop transitions, 2 changer transitions 4/298 dead transitions. [2021-12-17 22:53:26,127 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 307 places, 298 transitions, 770 flow [2021-12-17 22:53:26,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-17 22:53:26,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-12-17 22:53:26,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 888 transitions. [2021-12-17 22:53:26,129 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9024390243902439 [2021-12-17 22:53:26,129 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 888 transitions. [2021-12-17 22:53:26,129 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 888 transitions. [2021-12-17 22:53:26,130 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-17 22:53:26,130 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 888 transitions. [2021-12-17 22:53:26,131 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 296.0) internal successors, (888), 3 states have internal predecessors, (888), 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) [2021-12-17 22:53:26,133 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) [2021-12-17 22:53:26,133 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) [2021-12-17 22:53:26,133 INFO L186 Difference]: Start difference. First operand has 306 places, 293 transitions, 688 flow. Second operand 3 states and 888 transitions. [2021-12-17 22:53:26,133 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 307 places, 298 transitions, 770 flow [2021-12-17 22:53:26,136 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 302 places, 298 transitions, 758 flow, removed 1 selfloop flow, removed 5 redundant places. [2021-12-17 22:53:26,139 INFO L242 Difference]: Finished difference. Result has 303 places, 294 transitions, 690 flow [2021-12-17 22:53:26,139 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=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=291, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=690, PETRI_PLACES=303, PETRI_TRANSITIONS=294} [2021-12-17 22:53:26,140 INFO L334 CegarLoopForPetriNet]: 299 programPoint places, 4 predicate places. [2021-12-17 22:53:26,140 INFO L470 AbstractCegarLoop]: Abstraction has has 303 places, 294 transitions, 690 flow [2021-12-17 22:53:26,140 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 292.0) internal successors, (876), 3 states have internal predecessors, (876), 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) [2021-12-17 22:53:26,140 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-17 22:53:26,140 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] [2021-12-17 22:53:26,141 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-12-17 22:53:26,141 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)] === [2021-12-17 22:53:26,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 22:53:26,141 INFO L85 PathProgramCache]: Analyzing trace with hash 1623164799, now seen corresponding path program 1 times [2021-12-17 22:53:26,141 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 22:53:26,141 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [787728380] [2021-12-17 22:53:26,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 22:53:26,142 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 22:53:26,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 22:53:26,301 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-12-17 22:53:26,302 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 22:53:26,302 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [787728380] [2021-12-17 22:53:26,302 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [787728380] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 22:53:26,302 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 22:53:26,302 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-17 22:53:26,302 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1098038938] [2021-12-17 22:53:26,302 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 22:53:26,302 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-17 22:53:26,302 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 22:53:26,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-17 22:53:26,303 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-17 22:53:26,304 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 283 out of 328 [2021-12-17 22:53:26,305 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 303 places, 294 transitions, 690 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) [2021-12-17 22:53:26,305 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-17 22:53:26,305 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 283 of 328 [2021-12-17 22:53:26,305 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-17 22:53:26,593 INFO L129 PetriNetUnfolder]: 588/1631 cut-off events. [2021-12-17 22:53:26,593 INFO L130 PetriNetUnfolder]: For 1264/1302 co-relation queries the response was YES. [2021-12-17 22:53:26,599 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3658 conditions, 1631 events. 588/1631 cut-off events. For 1264/1302 co-relation queries the response was YES. Maximal size of possible extension queue 67. Compared 8301 event pairs, 138 based on Foata normal form. 28/1549 useless extension candidates. Maximal degree in co-relation 3644. Up to 387 conditions per place. [2021-12-17 22:53:26,606 INFO L132 encePairwiseOnDemand]: 317/328 looper letters, 49 selfloop transitions, 16 changer transitions 0/327 dead transitions. [2021-12-17 22:53:26,607 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 307 places, 327 transitions, 958 flow [2021-12-17 22:53:26,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-17 22:53:26,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-12-17 22:53:26,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1474 transitions. [2021-12-17 22:53:26,609 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8987804878048781 [2021-12-17 22:53:26,609 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1474 transitions. [2021-12-17 22:53:26,609 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1474 transitions. [2021-12-17 22:53:26,610 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-17 22:53:26,610 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1474 transitions. [2021-12-17 22:53:26,613 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) [2021-12-17 22:53:26,615 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) [2021-12-17 22:53:26,615 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) [2021-12-17 22:53:26,615 INFO L186 Difference]: Start difference. First operand has 303 places, 294 transitions, 690 flow. Second operand 5 states and 1474 transitions. [2021-12-17 22:53:26,615 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 307 places, 327 transitions, 958 flow [2021-12-17 22:53:26,618 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 306 places, 327 transitions, 954 flow, removed 1 selfloop flow, removed 1 redundant places. [2021-12-17 22:53:26,620 INFO L242 Difference]: Finished difference. Result has 308 places, 303 transitions, 794 flow [2021-12-17 22:53:26,621 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=328, PETRI_DIFFERENCE_MINUEND_FLOW=686, 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=794, PETRI_PLACES=308, PETRI_TRANSITIONS=303} [2021-12-17 22:53:26,621 INFO L334 CegarLoopForPetriNet]: 299 programPoint places, 9 predicate places. [2021-12-17 22:53:26,621 INFO L470 AbstractCegarLoop]: Abstraction has has 308 places, 303 transitions, 794 flow [2021-12-17 22:53:26,622 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) [2021-12-17 22:53:26,622 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-17 22:53:26,622 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] [2021-12-17 22:53:26,622 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-12-17 22:53:26,623 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)] === [2021-12-17 22:53:26,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 22:53:26,623 INFO L85 PathProgramCache]: Analyzing trace with hash 982204283, now seen corresponding path program 1 times [2021-12-17 22:53:26,623 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 22:53:26,623 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1567733413] [2021-12-17 22:53:26,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 22:53:26,624 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 22:53:26,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 22:53:26,733 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 5 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-12-17 22:53:26,733 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 22:53:26,733 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1567733413] [2021-12-17 22:53:26,733 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1567733413] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-17 22:53:26,734 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [873005571] [2021-12-17 22:53:26,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 22:53:26,734 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-17 22:53:26,734 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-17 22:53:26,736 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) [2021-12-17 22:53:26,760 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-17 22:53:26,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 22:53:26,955 INFO L263 TraceCheckSpWp]: Trace formula consists of 731 conjuncts, 9 conjunts are in the unsatisfiable core [2021-12-17 22:53:26,964 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-17 22:53:27,509 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-12-17 22:53:27,510 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-17 22:53:28,085 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-12-17 22:53:28,086 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [873005571] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-17 22:53:28,086 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-17 22:53:28,086 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 19 [2021-12-17 22:53:28,086 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [545773470] [2021-12-17 22:53:28,086 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-17 22:53:28,087 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2021-12-17 22:53:28,087 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 22:53:28,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-12-17 22:53:28,087 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=265, Unknown=0, NotChecked=0, Total=342 [2021-12-17 22:53:28,089 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 234 out of 328 [2021-12-17 22:53:28,092 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 308 places, 303 transitions, 794 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) [2021-12-17 22:53:28,092 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-17 22:53:28,092 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 234 of 328 [2021-12-17 22:53:28,092 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-17 22:53:28,632 INFO L129 PetriNetUnfolder]: 596/1876 cut-off events. [2021-12-17 22:53:28,632 INFO L130 PetriNetUnfolder]: For 2334/2362 co-relation queries the response was YES. [2021-12-17 22:53:28,636 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4747 conditions, 1876 events. 596/1876 cut-off events. For 2334/2362 co-relation queries the response was YES. Maximal size of possible extension queue 67. Compared 9204 event pairs, 294 based on Foata normal form. 5/1738 useless extension candidates. Maximal degree in co-relation 4731. Up to 863 conditions per place. [2021-12-17 22:53:28,643 INFO L132 encePairwiseOnDemand]: 306/328 looper letters, 79 selfloop transitions, 23 changer transitions 60/371 dead transitions. [2021-12-17 22:53:28,643 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 324 places, 371 transitions, 1321 flow [2021-12-17 22:53:28,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-12-17 22:53:28,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2021-12-17 22:53:28,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 4122 transitions. [2021-12-17 22:53:28,650 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7392395982783357 [2021-12-17 22:53:28,650 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 4122 transitions. [2021-12-17 22:53:28,650 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 4122 transitions. [2021-12-17 22:53:28,651 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-17 22:53:28,652 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 4122 transitions. [2021-12-17 22:53:28,657 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) [2021-12-17 22:53:28,663 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) [2021-12-17 22:53:28,664 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) [2021-12-17 22:53:28,664 INFO L186 Difference]: Start difference. First operand has 308 places, 303 transitions, 794 flow. Second operand 17 states and 4122 transitions. [2021-12-17 22:53:28,664 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 324 places, 371 transitions, 1321 flow [2021-12-17 22:53:28,668 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 323 places, 371 transitions, 1291 flow, removed 13 selfloop flow, removed 1 redundant places. [2021-12-17 22:53:28,671 INFO L242 Difference]: Finished difference. Result has 329 places, 307 transitions, 852 flow [2021-12-17 22:53:28,672 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=328, PETRI_DIFFERENCE_MINUEND_FLOW=768, 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=852, PETRI_PLACES=329, PETRI_TRANSITIONS=307} [2021-12-17 22:53:28,672 INFO L334 CegarLoopForPetriNet]: 299 programPoint places, 30 predicate places. [2021-12-17 22:53:28,672 INFO L470 AbstractCegarLoop]: Abstraction has has 329 places, 307 transitions, 852 flow [2021-12-17 22:53:28,673 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) [2021-12-17 22:53:28,673 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-17 22:53:28,673 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] [2021-12-17 22:53:28,693 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-12-17 22:53:28,887 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 [2021-12-17 22:53:28,888 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)] === [2021-12-17 22:53:28,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 22:53:28,888 INFO L85 PathProgramCache]: Analyzing trace with hash 1591953012, now seen corresponding path program 2 times [2021-12-17 22:53:28,888 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 22:53:28,888 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [888715571] [2021-12-17 22:53:28,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 22:53:28,889 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 22:53:28,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 22:53:29,038 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 8 proven. 9 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-12-17 22:53:29,038 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 22:53:29,038 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [888715571] [2021-12-17 22:53:29,038 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [888715571] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-17 22:53:29,039 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1403043582] [2021-12-17 22:53:29,039 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-17 22:53:29,039 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-17 22:53:29,039 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-17 22:53:29,056 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) [2021-12-17 22:53:29,057 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-12-17 22:53:29,252 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-12-17 22:53:29,253 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-17 22:53:29,255 INFO L263 TraceCheckSpWp]: Trace formula consists of 744 conjuncts, 11 conjunts are in the unsatisfiable core [2021-12-17 22:53:29,259 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-17 22:53:29,760 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-12-17 22:53:29,760 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-17 22:53:30,298 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-12-17 22:53:30,298 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1403043582] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-17 22:53:30,298 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-17 22:53:30,298 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 8, 8] total 23 [2021-12-17 22:53:30,298 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [882902675] [2021-12-17 22:53:30,298 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-17 22:53:30,301 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-12-17 22:53:30,301 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 22:53:30,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-12-17 22:53:30,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=437, Unknown=0, NotChecked=0, Total=506 [2021-12-17 22:53:30,306 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 232 out of 328 [2021-12-17 22:53:30,309 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 329 places, 307 transitions, 852 flow. Second operand has 23 states, 23 states have (on average 239.2173913043478) internal successors, (5502), 23 states have internal predecessors, (5502), 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) [2021-12-17 22:53:30,309 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-17 22:53:30,309 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 232 of 328 [2021-12-17 22:53:30,309 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-17 22:53:31,895 INFO L129 PetriNetUnfolder]: 861/2915 cut-off events. [2021-12-17 22:53:31,895 INFO L130 PetriNetUnfolder]: For 3103/3135 co-relation queries the response was YES. [2021-12-17 22:53:31,910 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7071 conditions, 2915 events. 861/2915 cut-off events. For 3103/3135 co-relation queries the response was YES. Maximal size of possible extension queue 88. Compared 16763 event pairs, 422 based on Foata normal form. 111/2824 useless extension candidates. Maximal degree in co-relation 7048. Up to 850 conditions per place. [2021-12-17 22:53:31,919 INFO L132 encePairwiseOnDemand]: 292/328 looper letters, 84 selfloop transitions, 33 changer transitions 190/514 dead transitions. [2021-12-17 22:53:31,919 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 384 places, 514 transitions, 2255 flow [2021-12-17 22:53:31,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2021-12-17 22:53:31,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60 states. [2021-12-17 22:53:31,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 14199 transitions. [2021-12-17 22:53:31,935 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7214939024390243 [2021-12-17 22:53:31,935 INFO L72 ComplementDD]: Start complementDD. Operand 60 states and 14199 transitions. [2021-12-17 22:53:31,935 INFO L73 IsDeterministic]: Start isDeterministic. Operand 60 states and 14199 transitions. [2021-12-17 22:53:31,939 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-17 22:53:31,940 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 60 states and 14199 transitions. [2021-12-17 22:53:31,960 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 61 states, 60 states have (on average 236.65) internal successors, (14199), 60 states have internal predecessors, (14199), 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) [2021-12-17 22:53:32,055 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 61 states, 61 states have (on average 328.0) internal successors, (20008), 61 states have internal predecessors, (20008), 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) [2021-12-17 22:53:32,061 INFO L81 ComplementDD]: Finished complementDD. Result has 61 states, 61 states have (on average 328.0) internal successors, (20008), 61 states have internal predecessors, (20008), 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) [2021-12-17 22:53:32,061 INFO L186 Difference]: Start difference. First operand has 329 places, 307 transitions, 852 flow. Second operand 60 states and 14199 transitions. [2021-12-17 22:53:32,061 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 384 places, 514 transitions, 2255 flow [2021-12-17 22:53:32,068 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 375 places, 514 transitions, 2126 flow, removed 15 selfloop flow, removed 9 redundant places. [2021-12-17 22:53:32,073 INFO L242 Difference]: Finished difference. Result has 402 places, 315 transitions, 1011 flow [2021-12-17 22:53:32,074 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=328, PETRI_DIFFERENCE_MINUEND_FLOW=808, PETRI_DIFFERENCE_MINUEND_PLACES=316, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=307, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=25, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=275, PETRI_DIFFERENCE_SUBTRAHEND_STATES=60, PETRI_FLOW=1011, PETRI_PLACES=402, PETRI_TRANSITIONS=315} [2021-12-17 22:53:32,074 INFO L334 CegarLoopForPetriNet]: 299 programPoint places, 103 predicate places. [2021-12-17 22:53:32,074 INFO L470 AbstractCegarLoop]: Abstraction has has 402 places, 315 transitions, 1011 flow [2021-12-17 22:53:32,076 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 239.2173913043478) internal successors, (5502), 23 states have internal predecessors, (5502), 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) [2021-12-17 22:53:32,076 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-17 22:53:32,076 INFO L254 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 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] [2021-12-17 22:53:32,097 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-12-17 22:53:32,297 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 [2021-12-17 22:53:32,297 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)] === [2021-12-17 22:53:32,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 22:53:32,298 INFO L85 PathProgramCache]: Analyzing trace with hash -1279751236, now seen corresponding path program 3 times [2021-12-17 22:53:32,298 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 22:53:32,298 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1076806712] [2021-12-17 22:53:32,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 22:53:32,298 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 22:53:32,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 22:53:32,578 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2021-12-17 22:53:32,578 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 22:53:32,578 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1076806712] [2021-12-17 22:53:32,578 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1076806712] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-17 22:53:32,579 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2113471474] [2021-12-17 22:53:32,579 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-12-17 22:53:32,579 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-17 22:53:32,579 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-17 22:53:32,584 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) [2021-12-17 22:53:32,607 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-12-17 22:53:32,882 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2021-12-17 22:53:32,883 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-17 22:53:32,887 INFO L263 TraceCheckSpWp]: Trace formula consists of 770 conjuncts, 8 conjunts are in the unsatisfiable core [2021-12-17 22:53:32,890 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-17 22:53:33,276 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2021-12-17 22:53:33,277 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-17 22:53:33,277 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2113471474] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 22:53:33,277 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-17 22:53:33,277 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [11] total 12 [2021-12-17 22:53:33,277 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1490394088] [2021-12-17 22:53:33,277 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 22:53:33,277 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-17 22:53:33,277 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 22:53:33,278 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-17 22:53:33,278 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2021-12-17 22:53:33,278 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 286 out of 328 [2021-12-17 22:53:33,279 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 402 places, 315 transitions, 1011 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) [2021-12-17 22:53:33,279 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-17 22:53:33,279 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 286 of 328 [2021-12-17 22:53:33,279 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-17 22:53:33,952 INFO L129 PetriNetUnfolder]: 1522/3939 cut-off events. [2021-12-17 22:53:33,952 INFO L130 PetriNetUnfolder]: For 8410/8460 co-relation queries the response was YES. [2021-12-17 22:53:33,971 INFO L84 FinitePrefix]: Finished finitePrefix Result has 11617 conditions, 3939 events. 1522/3939 cut-off events. For 8410/8460 co-relation queries the response was YES. Maximal size of possible extension queue 157. Compared 27259 event pairs, 275 based on Foata normal form. 79/3727 useless extension candidates. Maximal degree in co-relation 11569. Up to 813 conditions per place. [2021-12-17 22:53:34,075 INFO L132 encePairwiseOnDemand]: 325/328 looper letters, 84 selfloop transitions, 5 changer transitions 0/366 dead transitions. [2021-12-17 22:53:34,075 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 371 places, 366 transitions, 1517 flow [2021-12-17 22:53:34,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-17 22:53:34,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-12-17 22:53:34,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1200 transitions. [2021-12-17 22:53:34,077 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9146341463414634 [2021-12-17 22:53:34,077 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 1200 transitions. [2021-12-17 22:53:34,077 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 1200 transitions. [2021-12-17 22:53:34,078 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-17 22:53:34,078 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 1200 transitions. [2021-12-17 22:53:34,079 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) [2021-12-17 22:53:34,080 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) [2021-12-17 22:53:34,080 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) [2021-12-17 22:53:34,080 INFO L186 Difference]: Start difference. First operand has 402 places, 315 transitions, 1011 flow. Second operand 4 states and 1200 transitions. [2021-12-17 22:53:34,080 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 371 places, 366 transitions, 1517 flow [2021-12-17 22:53:34,086 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 336 places, 366 transitions, 1339 flow, removed 65 selfloop flow, removed 35 redundant places. [2021-12-17 22:53:34,089 INFO L242 Difference]: Finished difference. Result has 338 places, 318 transitions, 923 flow [2021-12-17 22:53:34,089 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=328, PETRI_DIFFERENCE_MINUEND_FLOW=885, PETRI_DIFFERENCE_MINUEND_PLACES=333, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=315, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=311, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=923, PETRI_PLACES=338, PETRI_TRANSITIONS=318} [2021-12-17 22:53:34,090 INFO L334 CegarLoopForPetriNet]: 299 programPoint places, 39 predicate places. [2021-12-17 22:53:34,090 INFO L470 AbstractCegarLoop]: Abstraction has has 338 places, 318 transitions, 923 flow [2021-12-17 22:53:34,091 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) [2021-12-17 22:53:34,091 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-17 22:53:34,091 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] [2021-12-17 22:53:34,111 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-12-17 22:53:34,307 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-17 22:53:34,308 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)] === [2021-12-17 22:53:34,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 22:53:34,308 INFO L85 PathProgramCache]: Analyzing trace with hash 1391567616, now seen corresponding path program 1 times [2021-12-17 22:53:34,308 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 22:53:34,308 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [508276695] [2021-12-17 22:53:34,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 22:53:34,309 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 22:53:34,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 22:53:43,993 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 22:53:43,993 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 22:53:43,994 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [508276695] [2021-12-17 22:53:43,994 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [508276695] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-17 22:53:43,994 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [300504798] [2021-12-17 22:53:43,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 22:53:43,994 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-17 22:53:43,994 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-17 22:53:43,995 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) [2021-12-17 22:53:43,996 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-12-17 22:53:44,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 22:53:44,217 INFO L263 TraceCheckSpWp]: Trace formula consists of 770 conjuncts, 159 conjunts are in the unsatisfiable core [2021-12-17 22:53:44,223 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-17 22:53:58,337 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 22:53:58,337 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-17 22:54:10,384 INFO L354 Elim1Store]: treesize reduction 237, result has 80.6 percent of original size [2021-12-17 22:54:10,385 INFO L388 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 Killed by 15