./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/weaver/parallel-parallel-sum-equiv.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/weaver/parallel-parallel-sum-equiv.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 d721a74d879c75d156b7dfbd9383140c70ef6831602ea84a0f8988cd7fdc0c32 --- Real Ultimate output --- This is Ultimate 0.2.2-839c364b5d67a0f615c82cb70ab247790648d4a9-839c364 [2021-12-14 16:50:18,323 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-14 16:50:18,325 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-14 16:50:18,363 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-14 16:50:18,364 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-14 16:50:18,373 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-14 16:50:18,376 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-14 16:50:18,381 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-14 16:50:18,382 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-14 16:50:18,383 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-14 16:50:18,384 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-14 16:50:18,385 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-14 16:50:18,385 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-14 16:50:18,386 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-14 16:50:18,387 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-14 16:50:18,388 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-14 16:50:18,389 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-14 16:50:18,390 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-14 16:50:18,391 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-14 16:50:18,392 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-14 16:50:18,393 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-14 16:50:18,400 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-14 16:50:18,401 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-14 16:50:18,402 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-14 16:50:18,405 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-14 16:50:18,407 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-14 16:50:18,409 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-14 16:50:18,410 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-14 16:50:18,410 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-14 16:50:18,412 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-14 16:50:18,412 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-14 16:50:18,412 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-14 16:50:18,413 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-14 16:50:18,414 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-14 16:50:18,415 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-14 16:50:18,416 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-14 16:50:18,417 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-14 16:50:18,417 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-14 16:50:18,417 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-14 16:50:18,418 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-14 16:50:18,418 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-14 16:50:18,419 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-14 16:50:18,447 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-14 16:50:18,447 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-14 16:50:18,448 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-14 16:50:18,448 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-14 16:50:18,449 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-14 16:50:18,449 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-14 16:50:18,449 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-14 16:50:18,450 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-14 16:50:18,450 INFO L138 SettingsManager]: * Use SBE=true [2021-12-14 16:50:18,450 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-14 16:50:18,451 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-14 16:50:18,451 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-14 16:50:18,451 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-14 16:50:18,451 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-14 16:50:18,452 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-14 16:50:18,452 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-14 16:50:18,452 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-14 16:50:18,452 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-14 16:50:18,452 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-14 16:50:18,453 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-14 16:50:18,453 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-14 16:50:18,453 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-14 16:50:18,453 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-14 16:50:18,453 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-14 16:50:18,453 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-14 16:50:18,454 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-14 16:50:18,454 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-14 16:50:18,455 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-14 16:50:18,455 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-14 16:50:18,455 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-14 16:50:18,455 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-14 16:50:18,456 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-14 16:50:18,456 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-14 16:50:18,456 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-14 16:50:18,456 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d721a74d879c75d156b7dfbd9383140c70ef6831602ea84a0f8988cd7fdc0c32 [2021-12-14 16:50:18,693 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-14 16:50:18,709 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-14 16:50:18,710 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-14 16:50:18,711 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-14 16:50:18,715 INFO L275 PluginConnector]: CDTParser initialized [2021-12-14 16:50:18,716 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/parallel-parallel-sum-equiv.wvr.c [2021-12-14 16:50:18,784 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bc1328024/1c786df514074ef5aa785ff0e54a245c/FLAG7a7a1e9db [2021-12-14 16:50:19,195 INFO L306 CDTParser]: Found 1 translation units. [2021-12-14 16:50:19,196 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/parallel-parallel-sum-equiv.wvr.c [2021-12-14 16:50:19,202 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bc1328024/1c786df514074ef5aa785ff0e54a245c/FLAG7a7a1e9db [2021-12-14 16:50:19,607 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bc1328024/1c786df514074ef5aa785ff0e54a245c [2021-12-14 16:50:19,609 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-14 16:50:19,611 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-14 16:50:19,612 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-14 16:50:19,612 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-14 16:50:19,615 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-14 16:50:19,615 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 04:50:19" (1/1) ... [2021-12-14 16:50:19,616 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7b9ba79f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:50:19, skipping insertion in model container [2021-12-14 16:50:19,616 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 04:50:19" (1/1) ... [2021-12-14 16:50:19,622 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-14 16:50:19,641 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-14 16:50:19,800 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/parallel-parallel-sum-equiv.wvr.c[3770,3783] [2021-12-14 16:50:19,814 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-14 16:50:19,822 INFO L203 MainTranslator]: Completed pre-run [2021-12-14 16:50:19,842 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/parallel-parallel-sum-equiv.wvr.c[3770,3783] [2021-12-14 16:50:19,848 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-14 16:50:19,861 INFO L208 MainTranslator]: Completed translation [2021-12-14 16:50:19,862 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:50:19 WrapperNode [2021-12-14 16:50:19,862 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-14 16:50:19,863 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-14 16:50:19,864 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-14 16:50:19,864 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-14 16:50:19,872 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:50:19" (1/1) ... [2021-12-14 16:50:19,880 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:50:19" (1/1) ... [2021-12-14 16:50:19,921 INFO L137 Inliner]: procedures = 27, calls = 73, calls flagged for inlining = 18, calls inlined = 22, statements flattened = 245 [2021-12-14 16:50:19,922 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-14 16:50:19,922 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-14 16:50:19,923 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-14 16:50:19,923 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-14 16:50:19,929 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:50:19" (1/1) ... [2021-12-14 16:50:19,929 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:50:19" (1/1) ... [2021-12-14 16:50:19,933 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:50:19" (1/1) ... [2021-12-14 16:50:19,934 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:50:19" (1/1) ... [2021-12-14 16:50:19,947 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:50:19" (1/1) ... [2021-12-14 16:50:19,951 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:50:19" (1/1) ... [2021-12-14 16:50:19,954 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:50:19" (1/1) ... [2021-12-14 16:50:19,957 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-14 16:50:19,958 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-14 16:50:19,958 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-14 16:50:19,958 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-14 16:50:19,960 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:50:19" (1/1) ... [2021-12-14 16:50:19,965 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-14 16:50:19,976 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 16:50:19,986 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) [2021-12-14 16:50:20,003 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 [2021-12-14 16:50:20,023 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-14 16:50:20,023 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-14 16:50:20,023 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-14 16:50:20,023 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-14 16:50:20,024 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-12-14 16:50:20,024 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-12-14 16:50:20,024 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-12-14 16:50:20,024 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-12-14 16:50:20,024 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-12-14 16:50:20,024 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-12-14 16:50:20,025 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2021-12-14 16:50:20,025 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2021-12-14 16:50:20,025 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-14 16:50:20,025 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-12-14 16:50:20,025 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-12-14 16:50:20,026 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-14 16:50:20,026 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-14 16:50:20,026 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-14 16:50:20,026 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-14 16:50:20,028 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-12-14 16:50:20,117 INFO L236 CfgBuilder]: Building ICFG [2021-12-14 16:50:20,119 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-14 16:50:20,424 INFO L277 CfgBuilder]: Performing block encoding [2021-12-14 16:50:20,599 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-14 16:50:20,600 INFO L301 CfgBuilder]: Removed 4 assume(true) statements. [2021-12-14 16:50:20,602 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 04:50:20 BoogieIcfgContainer [2021-12-14 16:50:20,603 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-14 16:50:20,605 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-14 16:50:20,605 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-14 16:50:20,608 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-14 16:50:20,608 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 04:50:19" (1/3) ... [2021-12-14 16:50:20,609 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55eafad1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 04:50:20, skipping insertion in model container [2021-12-14 16:50:20,609 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:50:19" (2/3) ... [2021-12-14 16:50:20,610 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55eafad1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 04:50:20, skipping insertion in model container [2021-12-14 16:50:20,610 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 04:50:20" (3/3) ... [2021-12-14 16:50:20,611 INFO L111 eAbstractionObserver]: Analyzing ICFG parallel-parallel-sum-equiv.wvr.c [2021-12-14 16:50:20,619 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-12-14 16:50:20,620 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-14 16:50:20,620 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-14 16:50:20,621 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-12-14 16:50:20,668 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_~#t2~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:50:20,669 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_~#t2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:50:20,669 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_~#t2~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:50:20,669 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_~#t2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:50:20,670 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_~#t3~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:50:20,670 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_~#t3~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:50:20,670 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_~#t3~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:50:20,670 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_~#t3~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:50:20,670 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~pre9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:50:20,671 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~pre9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:50:20,671 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_~#t2~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:50:20,671 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_~#t2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:50:20,671 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~pre9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:50:20,671 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_~#t2~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:50:20,672 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_~#t2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:50:20,672 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~pre9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:50:20,673 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~pre9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:50:20,673 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~pre9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:50:20,674 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~nondet10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:50:20,674 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~nondet10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:50:20,674 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~pre11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:50:20,674 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~pre11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:50:20,675 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_~#t3~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:50:20,675 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_~#t3~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:50:20,675 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~pre11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:50:20,675 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_~#t3~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:50:20,675 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_~#t3~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:50:20,676 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~pre11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:50:20,676 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~pre11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:50:20,676 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~pre11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:50:20,676 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~nondet12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:50:20,676 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~nondet12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:50:20,677 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_~#t2~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:50:20,677 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_~#t2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:50:20,677 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:50:20,677 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_~#t2~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:50:20,677 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_~#t2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:50:20,677 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:50:20,678 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:50:20,678 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:50:20,678 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_~#t3~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:50:20,679 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_~#t3~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:50:20,679 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~mem14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:50:20,680 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_~#t3~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:50:20,680 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_~#t3~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:50:20,680 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~mem14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:50:20,680 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~mem14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:50:20,680 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~mem14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:50:20,681 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:50:20,681 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:50:20,681 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:50:20,681 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:50:20,682 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_~#t2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:50:20,682 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_~#t2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:50:20,683 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_~#t2~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:50:20,683 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_~#t2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:50:20,683 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_~#t2~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:50:20,684 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_~#t2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:50:20,684 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_~#t3~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:50:20,684 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_~#t3~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:50:20,684 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_~#t3~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:50:20,684 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_~#t3~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:50:20,685 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_~#t3~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:50:20,685 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_~#t3~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:50:20,686 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:50:20,686 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:50:20,686 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:50:20,686 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:50:20,687 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:50:20,687 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:50:20,687 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:50:20,687 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:50:20,688 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:50:20,688 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:50:20,688 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:50:20,689 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:50:20,691 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:50:20,692 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:50:20,692 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:50:20,692 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:50:20,693 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:50:20,694 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:50:20,694 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:50:20,694 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:50:20,694 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:50:20,694 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:50:20,694 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:50:20,695 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:50:20,695 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ret4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:50:20,695 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:50:20,695 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_plus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:50:20,695 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_plus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:50:20,696 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_plus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:50:20,696 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_plus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:50:20,696 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_plus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:50:20,696 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:50:20,696 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ret4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:50:20,697 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:50:20,697 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_plus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:50:20,697 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_plus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:50:20,697 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_plus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:50:20,697 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_plus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:50:20,697 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_plus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:50:20,697 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:50:20,698 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~nondet5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:50:20,698 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~nondet5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:50:20,698 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~nondet5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:50:20,699 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~nondet5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:50:20,699 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:50:20,699 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:50:20,699 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:50:20,699 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:50:20,699 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~nondet5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:50:20,700 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~nondet5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:50:20,700 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~nondet5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:50:20,700 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~nondet5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:50:20,700 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:50:20,700 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:50:20,700 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:50:20,701 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:50:20,701 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:50:20,701 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:50:20,701 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:50:20,701 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:50:20,702 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:50:20,702 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:50:20,702 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:50:20,702 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:50:20,702 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_plus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:50:20,702 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:50:20,703 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ret8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:50:20,703 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_plus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:50:20,703 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_plus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:50:20,703 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_plus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:50:20,703 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_plus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:50:20,703 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:50:20,704 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_plus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:50:20,704 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:50:20,704 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ret8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:50:20,704 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_plus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:50:20,704 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_plus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:50:20,704 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_plus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:50:20,705 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_plus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:50:20,705 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:50:20,705 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_#t~nondet15#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:50:20,705 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_#t~nondet15#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:50:20,706 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_#t~nondet15#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:50:20,706 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_#t~nondet15#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:50:20,706 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:50:20,706 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:50:20,706 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:50:20,707 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:50:20,707 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_#t~nondet15#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:50:20,707 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_#t~nondet15#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:50:20,707 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_#t~nondet15#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:50:20,707 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_#t~nondet15#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:50:20,707 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:50:20,708 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:50:20,708 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:50:20,708 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:50:20,708 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:50:20,708 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_#t~mem17#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:50:20,708 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_#t~post16#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:50:20,709 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:50:20,709 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:50:20,709 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_#t~mem17#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:50:20,709 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_#t~post16#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:50:20,709 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:50:20,709 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_plus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:50:20,710 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:50:20,710 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_plus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:50:20,710 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_#t~ret18#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:50:20,710 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_plus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:50:20,710 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_plus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:50:20,710 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_plus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:50:20,711 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:50:20,711 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_plus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:50:20,711 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:50:20,711 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_plus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:50:20,711 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_#t~ret18#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:50:20,711 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_plus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:50:20,712 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_plus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:50:20,712 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_plus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:50:20,712 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:50:20,741 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:50:20,742 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_#t~nondet15#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:50:20,742 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_plus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:50:20,742 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_#t~mem17#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:50:20,742 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_#t~ret18#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:50:20,742 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_plus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:50:20,742 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_plus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:50:20,743 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:50:20,743 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:50:20,743 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_plus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:50:20,743 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_plus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:50:20,743 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_#t~post16#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:50:20,743 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:50:20,744 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_plus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:50:20,745 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:50:20,745 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:50:20,745 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_plus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:50:20,745 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:50:20,745 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_plus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:50:20,745 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:50:20,745 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ret4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:50:20,745 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:50:20,746 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:50:20,746 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_plus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:50:20,746 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_plus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:50:20,746 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:50:20,746 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:50:20,746 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~nondet5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:50:20,747 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:50:20,747 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_plus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:50:20,747 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_plus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:50:20,747 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:50:20,747 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:50:20,747 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:50:20,747 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ret8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:50:20,747 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_plus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:50:20,748 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_plus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:50:20,748 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:50:20,748 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_plus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:50:20,748 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~nondet12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:50:20,748 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:50:20,749 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_~#t2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:50:20,749 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~pre11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:50:20,749 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:50:20,749 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:50:20,749 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_~#t3~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:50:20,749 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~mem14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:50:20,750 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_~#t2~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:50:20,750 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_~#t3~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:50:20,750 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~pre9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:50:20,750 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~nondet10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:50:20,751 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_plus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:50:20,751 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:50:20,751 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:50:20,751 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_plus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:50:20,751 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:50:20,751 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_plus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:50:20,752 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:50:20,752 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ret4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:50:20,752 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:50:20,752 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:50:20,752 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_plus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:50:20,752 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_plus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:50:20,752 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:50:20,753 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:50:20,753 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~nondet5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:50:20,753 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:50:20,753 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_plus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:50:20,753 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_plus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:50:20,754 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:50:20,754 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:50:20,754 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:50:20,754 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ret8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:50:20,754 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_plus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:50:20,754 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_plus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:50:20,754 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:50:20,755 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_plus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:50:20,758 INFO L148 ThreadInstanceAdder]: Constructed 10 joinOtherThreadTransitions. [2021-12-14 16:50:20,819 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-14 16:50:20,828 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 [2021-12-14 16:50:20,829 INFO L340 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2021-12-14 16:50:20,846 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 204 places, 205 transitions, 454 flow [2021-12-14 16:50:20,944 INFO L129 PetriNetUnfolder]: 14/190 cut-off events. [2021-12-14 16:50:20,945 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2021-12-14 16:50:20,951 INFO L84 FinitePrefix]: Finished finitePrefix Result has 209 conditions, 190 events. 14/190 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 162 event pairs, 0 based on Foata normal form. 0/175 useless extension candidates. Maximal degree in co-relation 162. Up to 3 conditions per place. [2021-12-14 16:50:20,951 INFO L82 GeneralOperation]: Start removeDead. Operand has 204 places, 205 transitions, 454 flow [2021-12-14 16:50:20,959 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 180 places, 181 transitions, 392 flow [2021-12-14 16:50:20,993 INFO L129 PetriNetUnfolder]: 14/180 cut-off events. [2021-12-14 16:50:20,993 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2021-12-14 16:50:20,993 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-14 16:50:20,994 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] [2021-12-14 16:50:20,995 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err1INUSE_VIOLATION, thread1Err5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] === [2021-12-14 16:50:20,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 16:50:21,000 INFO L85 PathProgramCache]: Analyzing trace with hash -1446293919, now seen corresponding path program 1 times [2021-12-14 16:50:21,006 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 16:50:21,006 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [272634842] [2021-12-14 16:50:21,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 16:50:21,007 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 16:50:21,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 16:50:21,321 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 16:50:21,322 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 16:50:21,322 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [272634842] [2021-12-14 16:50:21,323 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [272634842] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 16:50:21,323 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 16:50:21,323 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-14 16:50:21,325 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [832941869] [2021-12-14 16:50:21,325 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 16:50:21,333 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-12-14 16:50:21,333 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 16:50:21,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-12-14 16:50:21,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-14 16:50:21,367 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 173 out of 207 [2021-12-14 16:50:21,371 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 180 places, 181 transitions, 392 flow. Second operand has 2 states, 2 states have (on average 181.0) internal successors, (362), 2 states have internal predecessors, (362), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 16:50:21,371 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-14 16:50:21,372 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 173 of 207 [2021-12-14 16:50:21,373 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-14 16:50:21,559 INFO L129 PetriNetUnfolder]: 191/594 cut-off events. [2021-12-14 16:50:21,559 INFO L130 PetriNetUnfolder]: For 114/114 co-relation queries the response was YES. [2021-12-14 16:50:21,564 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1008 conditions, 594 events. 191/594 cut-off events. For 114/114 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 2256 event pairs, 111 based on Foata normal form. 64/606 useless extension candidates. Maximal degree in co-relation 865. Up to 286 conditions per place. [2021-12-14 16:50:21,569 INFO L132 encePairwiseOnDemand]: 199/207 looper letters, 21 selfloop transitions, 0 changer transitions 4/173 dead transitions. [2021-12-14 16:50:21,569 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 181 places, 173 transitions, 418 flow [2021-12-14 16:50:21,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-14 16:50:21,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2021-12-14 16:50:21,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 375 transitions. [2021-12-14 16:50:21,596 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9057971014492754 [2021-12-14 16:50:21,596 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 375 transitions. [2021-12-14 16:50:21,597 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 375 transitions. [2021-12-14 16:50:21,600 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-14 16:50:21,602 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 375 transitions. [2021-12-14 16:50:21,607 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 187.5) internal successors, (375), 2 states have internal predecessors, (375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 16:50:21,615 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 207.0) internal successors, (621), 3 states have internal predecessors, (621), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 16:50:21,615 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 207.0) internal successors, (621), 3 states have internal predecessors, (621), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 16:50:21,617 INFO L186 Difference]: Start difference. First operand has 180 places, 181 transitions, 392 flow. Second operand 2 states and 375 transitions. [2021-12-14 16:50:21,618 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 181 places, 173 transitions, 418 flow [2021-12-14 16:50:21,622 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 173 places, 173 transitions, 398 flow, removed 0 selfloop flow, removed 8 redundant places. [2021-12-14 16:50:21,626 INFO L242 Difference]: Finished difference. Result has 173 places, 169 transitions, 348 flow [2021-12-14 16:50:21,628 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=207, PETRI_DIFFERENCE_MINUEND_FLOW=356, PETRI_DIFFERENCE_MINUEND_PLACES=172, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=173, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=173, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=348, PETRI_PLACES=173, PETRI_TRANSITIONS=169} [2021-12-14 16:50:21,631 INFO L334 CegarLoopForPetriNet]: 180 programPoint places, -7 predicate places. [2021-12-14 16:50:21,631 INFO L470 AbstractCegarLoop]: Abstraction has has 173 places, 169 transitions, 348 flow [2021-12-14 16:50:21,632 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 181.0) internal successors, (362), 2 states have internal predecessors, (362), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 16:50:21,632 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-14 16:50:21,632 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] [2021-12-14 16:50:21,633 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-14 16:50:21,633 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err1INUSE_VIOLATION, thread1Err5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] === [2021-12-14 16:50:21,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 16:50:21,634 INFO L85 PathProgramCache]: Analyzing trace with hash 2127134419, now seen corresponding path program 1 times [2021-12-14 16:50:21,634 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 16:50:21,637 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2017415276] [2021-12-14 16:50:21,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 16:50:21,637 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 16:50:21,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 16:50:21,947 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 16:50:21,948 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 16:50:21,948 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2017415276] [2021-12-14 16:50:21,948 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2017415276] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 16:50:21,949 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 16:50:21,949 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-14 16:50:21,953 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1440810368] [2021-12-14 16:50:21,953 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 16:50:21,956 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-14 16:50:21,956 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 16:50:21,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-14 16:50:21,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-14 16:50:21,960 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 149 out of 207 [2021-12-14 16:50:21,983 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 173 places, 169 transitions, 348 flow. Second operand has 6 states, 6 states have (on average 154.5) internal successors, (927), 6 states have internal predecessors, (927), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 16:50:21,983 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-14 16:50:21,983 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 149 of 207 [2021-12-14 16:50:21,983 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-14 16:50:22,395 INFO L129 PetriNetUnfolder]: 481/1385 cut-off events. [2021-12-14 16:50:22,395 INFO L130 PetriNetUnfolder]: For 66/66 co-relation queries the response was YES. [2021-12-14 16:50:22,399 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2212 conditions, 1385 events. 481/1385 cut-off events. For 66/66 co-relation queries the response was YES. Maximal size of possible extension queue 83. Compared 8491 event pairs, 149 based on Foata normal form. 1/1264 useless extension candidates. Maximal degree in co-relation 2209. Up to 353 conditions per place. [2021-12-14 16:50:22,406 INFO L132 encePairwiseOnDemand]: 196/207 looper letters, 69 selfloop transitions, 10 changer transitions 4/211 dead transitions. [2021-12-14 16:50:22,407 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 174 places, 211 transitions, 614 flow [2021-12-14 16:50:22,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-14 16:50:22,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-12-14 16:50:22,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 978 transitions. [2021-12-14 16:50:22,411 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7874396135265701 [2021-12-14 16:50:22,411 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 978 transitions. [2021-12-14 16:50:22,411 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 978 transitions. [2021-12-14 16:50:22,412 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-14 16:50:22,412 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 978 transitions. [2021-12-14 16:50:22,414 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 163.0) internal successors, (978), 6 states have internal predecessors, (978), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 16:50:22,418 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 207.0) internal successors, (1449), 7 states have internal predecessors, (1449), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 16:50:22,419 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 207.0) internal successors, (1449), 7 states have internal predecessors, (1449), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 16:50:22,419 INFO L186 Difference]: Start difference. First operand has 173 places, 169 transitions, 348 flow. Second operand 6 states and 978 transitions. [2021-12-14 16:50:22,419 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 174 places, 211 transitions, 614 flow [2021-12-14 16:50:22,421 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 174 places, 211 transitions, 614 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-12-14 16:50:22,425 INFO L242 Difference]: Finished difference. Result has 178 places, 175 transitions, 407 flow [2021-12-14 16:50:22,425 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=207, PETRI_DIFFERENCE_MINUEND_FLOW=348, PETRI_DIFFERENCE_MINUEND_PLACES=169, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=169, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=161, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=407, PETRI_PLACES=178, PETRI_TRANSITIONS=175} [2021-12-14 16:50:22,426 INFO L334 CegarLoopForPetriNet]: 180 programPoint places, -2 predicate places. [2021-12-14 16:50:22,426 INFO L470 AbstractCegarLoop]: Abstraction has has 178 places, 175 transitions, 407 flow [2021-12-14 16:50:22,427 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 154.5) internal successors, (927), 6 states have internal predecessors, (927), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 16:50:22,427 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-14 16:50:22,427 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] [2021-12-14 16:50:22,427 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-14 16:50:22,428 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err1INUSE_VIOLATION, thread1Err5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] === [2021-12-14 16:50:22,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 16:50:22,428 INFO L85 PathProgramCache]: Analyzing trace with hash 283635425, now seen corresponding path program 1 times [2021-12-14 16:50:22,428 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 16:50:22,429 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [904710104] [2021-12-14 16:50:22,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 16:50:22,429 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 16:50:22,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 16:50:22,555 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 16:50:22,555 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 16:50:22,555 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [904710104] [2021-12-14 16:50:22,555 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [904710104] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 16:50:22,555 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 16:50:22,555 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-14 16:50:22,556 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [647183865] [2021-12-14 16:50:22,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 16:50:22,556 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-14 16:50:22,556 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 16:50:22,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-14 16:50:22,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-14 16:50:22,558 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 149 out of 207 [2021-12-14 16:50:22,559 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 178 places, 175 transitions, 407 flow. Second operand has 6 states, 6 states have (on average 154.5) internal successors, (927), 6 states have internal predecessors, (927), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 16:50:22,559 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-14 16:50:22,559 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 149 of 207 [2021-12-14 16:50:22,559 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-14 16:50:22,988 INFO L129 PetriNetUnfolder]: 703/1924 cut-off events. [2021-12-14 16:50:22,988 INFO L130 PetriNetUnfolder]: For 344/344 co-relation queries the response was YES. [2021-12-14 16:50:22,994 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3539 conditions, 1924 events. 703/1924 cut-off events. For 344/344 co-relation queries the response was YES. Maximal size of possible extension queue 112. Compared 12946 event pairs, 240 based on Foata normal form. 1/1743 useless extension candidates. Maximal degree in co-relation 3531. Up to 590 conditions per place. [2021-12-14 16:50:23,006 INFO L132 encePairwiseOnDemand]: 197/207 looper letters, 75 selfloop transitions, 10 changer transitions 4/217 dead transitions. [2021-12-14 16:50:23,006 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 181 places, 217 transitions, 712 flow [2021-12-14 16:50:23,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-14 16:50:23,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-12-14 16:50:23,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 978 transitions. [2021-12-14 16:50:23,009 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7874396135265701 [2021-12-14 16:50:23,009 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 978 transitions. [2021-12-14 16:50:23,009 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 978 transitions. [2021-12-14 16:50:23,010 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-14 16:50:23,010 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 978 transitions. [2021-12-14 16:50:23,012 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 163.0) internal successors, (978), 6 states have internal predecessors, (978), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 16:50:23,014 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 207.0) internal successors, (1449), 7 states have internal predecessors, (1449), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 16:50:23,015 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 207.0) internal successors, (1449), 7 states have internal predecessors, (1449), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 16:50:23,015 INFO L186 Difference]: Start difference. First operand has 178 places, 175 transitions, 407 flow. Second operand 6 states and 978 transitions. [2021-12-14 16:50:23,015 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 181 places, 217 transitions, 712 flow [2021-12-14 16:50:23,020 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 179 places, 217 transitions, 702 flow, removed 5 selfloop flow, removed 2 redundant places. [2021-12-14 16:50:23,023 INFO L242 Difference]: Finished difference. Result has 183 places, 180 transitions, 473 flow [2021-12-14 16:50:23,023 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=207, PETRI_DIFFERENCE_MINUEND_FLOW=403, PETRI_DIFFERENCE_MINUEND_PLACES=174, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=175, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=166, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=473, PETRI_PLACES=183, PETRI_TRANSITIONS=180} [2021-12-14 16:50:23,025 INFO L334 CegarLoopForPetriNet]: 180 programPoint places, 3 predicate places. [2021-12-14 16:50:23,025 INFO L470 AbstractCegarLoop]: Abstraction has has 183 places, 180 transitions, 473 flow [2021-12-14 16:50:23,026 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 154.5) internal successors, (927), 6 states have internal predecessors, (927), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 16:50:23,026 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-14 16:50:23,027 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] [2021-12-14 16:50:23,027 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-14 16:50:23,027 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err1INUSE_VIOLATION, thread1Err5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] === [2021-12-14 16:50:23,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 16:50:23,028 INFO L85 PathProgramCache]: Analyzing trace with hash -1054283516, now seen corresponding path program 1 times [2021-12-14 16:50:23,028 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 16:50:23,029 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1314740744] [2021-12-14 16:50:23,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 16:50:23,029 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 16:50:23,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 16:50:23,184 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 16:50:23,185 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 16:50:23,185 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1314740744] [2021-12-14 16:50:23,185 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1314740744] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 16:50:23,185 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 16:50:23,186 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-14 16:50:23,186 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [519893845] [2021-12-14 16:50:23,186 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 16:50:23,186 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-14 16:50:23,187 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 16:50:23,188 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-14 16:50:23,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-12-14 16:50:23,192 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 156 out of 207 [2021-12-14 16:50:23,194 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 183 places, 180 transitions, 473 flow. Second operand has 7 states, 7 states have (on average 160.0) internal successors, (1120), 7 states have internal predecessors, (1120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 16:50:23,194 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-14 16:50:23,194 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 156 of 207 [2021-12-14 16:50:23,194 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-14 16:50:23,810 INFO L129 PetriNetUnfolder]: 1018/2906 cut-off events. [2021-12-14 16:50:23,810 INFO L130 PetriNetUnfolder]: For 1384/1384 co-relation queries the response was YES. [2021-12-14 16:50:23,822 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5645 conditions, 2906 events. 1018/2906 cut-off events. For 1384/1384 co-relation queries the response was YES. Maximal size of possible extension queue 142. Compared 22083 event pairs, 398 based on Foata normal form. 54/2671 useless extension candidates. Maximal degree in co-relation 5634. Up to 777 conditions per place. [2021-12-14 16:50:23,879 INFO L132 encePairwiseOnDemand]: 199/207 looper letters, 107 selfloop transitions, 8 changer transitions 0/246 dead transitions. [2021-12-14 16:50:23,879 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 188 places, 246 transitions, 967 flow [2021-12-14 16:50:23,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-14 16:50:23,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-12-14 16:50:23,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1339 transitions. [2021-12-14 16:50:23,883 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8085748792270532 [2021-12-14 16:50:23,883 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1339 transitions. [2021-12-14 16:50:23,883 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1339 transitions. [2021-12-14 16:50:23,884 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-14 16:50:23,885 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1339 transitions. [2021-12-14 16:50:23,888 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 167.375) internal successors, (1339), 8 states have internal predecessors, (1339), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 16:50:23,891 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 207.0) internal successors, (1863), 9 states have internal predecessors, (1863), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 16:50:23,893 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 207.0) internal successors, (1863), 9 states have internal predecessors, (1863), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 16:50:23,893 INFO L186 Difference]: Start difference. First operand has 183 places, 180 transitions, 473 flow. Second operand 8 states and 1339 transitions. [2021-12-14 16:50:23,893 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 188 places, 246 transitions, 967 flow [2021-12-14 16:50:23,900 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 186 places, 246 transitions, 961 flow, removed 3 selfloop flow, removed 2 redundant places. [2021-12-14 16:50:23,904 INFO L242 Difference]: Finished difference. Result has 190 places, 185 transitions, 529 flow [2021-12-14 16:50:23,904 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=207, PETRI_DIFFERENCE_MINUEND_FLOW=467, PETRI_DIFFERENCE_MINUEND_PLACES=179, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=180, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=172, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=529, PETRI_PLACES=190, PETRI_TRANSITIONS=185} [2021-12-14 16:50:23,906 INFO L334 CegarLoopForPetriNet]: 180 programPoint places, 10 predicate places. [2021-12-14 16:50:23,906 INFO L470 AbstractCegarLoop]: Abstraction has has 190 places, 185 transitions, 529 flow [2021-12-14 16:50:23,907 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 160.0) internal successors, (1120), 7 states have internal predecessors, (1120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 16:50:23,907 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-14 16:50:23,907 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] [2021-12-14 16:50:23,907 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-14 16:50:23,907 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err1INUSE_VIOLATION, thread1Err5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] === [2021-12-14 16:50:23,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 16:50:23,908 INFO L85 PathProgramCache]: Analyzing trace with hash -1131479502, now seen corresponding path program 1 times [2021-12-14 16:50:23,908 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 16:50:23,909 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1796853885] [2021-12-14 16:50:23,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 16:50:23,910 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 16:50:23,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 16:50:24,049 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 16:50:24,049 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 16:50:24,049 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1796853885] [2021-12-14 16:50:24,050 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1796853885] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 16:50:24,050 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 16:50:24,050 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-14 16:50:24,050 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [316292909] [2021-12-14 16:50:24,050 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 16:50:24,051 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-14 16:50:24,051 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 16:50:24,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-14 16:50:24,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-12-14 16:50:24,053 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 156 out of 207 [2021-12-14 16:50:24,054 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 190 places, 185 transitions, 529 flow. Second operand has 7 states, 7 states have (on average 160.0) internal successors, (1120), 7 states have internal predecessors, (1120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 16:50:24,054 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-14 16:50:24,054 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 156 of 207 [2021-12-14 16:50:24,054 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-14 16:50:24,513 INFO L129 PetriNetUnfolder]: 780/2319 cut-off events. [2021-12-14 16:50:24,514 INFO L130 PetriNetUnfolder]: For 1480/1480 co-relation queries the response was YES. [2021-12-14 16:50:24,522 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4776 conditions, 2319 events. 780/2319 cut-off events. For 1480/1480 co-relation queries the response was YES. Maximal size of possible extension queue 108. Compared 16358 event pairs, 469 based on Foata normal form. 36/2134 useless extension candidates. Maximal degree in co-relation 4762. Up to 1057 conditions per place. [2021-12-14 16:50:24,534 INFO L132 encePairwiseOnDemand]: 199/207 looper letters, 49 selfloop transitions, 4 changer transitions 20/204 dead transitions. [2021-12-14 16:50:24,534 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 196 places, 204 transitions, 738 flow [2021-12-14 16:50:24,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-14 16:50:24,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-12-14 16:50:24,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1155 transitions. [2021-12-14 16:50:24,538 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7971014492753623 [2021-12-14 16:50:24,538 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1155 transitions. [2021-12-14 16:50:24,538 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1155 transitions. [2021-12-14 16:50:24,539 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-14 16:50:24,539 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1155 transitions. [2021-12-14 16:50:24,542 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 165.0) internal successors, (1155), 7 states have internal predecessors, (1155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 16:50:24,544 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 207.0) internal successors, (1656), 8 states have internal predecessors, (1656), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 16:50:24,545 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 207.0) internal successors, (1656), 8 states have internal predecessors, (1656), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 16:50:24,545 INFO L186 Difference]: Start difference. First operand has 190 places, 185 transitions, 529 flow. Second operand 7 states and 1155 transitions. [2021-12-14 16:50:24,545 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 196 places, 204 transitions, 738 flow [2021-12-14 16:50:24,550 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 194 places, 204 transitions, 735 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-12-14 16:50:24,553 INFO L242 Difference]: Finished difference. Result has 196 places, 181 transitions, 508 flow [2021-12-14 16:50:24,553 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=207, PETRI_DIFFERENCE_MINUEND_FLOW=526, PETRI_DIFFERENCE_MINUEND_PLACES=188, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=185, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=181, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=508, PETRI_PLACES=196, PETRI_TRANSITIONS=181} [2021-12-14 16:50:24,556 INFO L334 CegarLoopForPetriNet]: 180 programPoint places, 16 predicate places. [2021-12-14 16:50:24,556 INFO L470 AbstractCegarLoop]: Abstraction has has 196 places, 181 transitions, 508 flow [2021-12-14 16:50:24,557 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 160.0) internal successors, (1120), 7 states have internal predecessors, (1120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 16:50:24,557 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-14 16:50:24,557 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] [2021-12-14 16:50:24,558 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-14 16:50:24,558 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err1INUSE_VIOLATION, thread1Err5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] === [2021-12-14 16:50:24,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 16:50:24,559 INFO L85 PathProgramCache]: Analyzing trace with hash -587263874, now seen corresponding path program 1 times [2021-12-14 16:50:24,559 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 16:50:24,559 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1252425297] [2021-12-14 16:50:24,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 16:50:24,559 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 16:50:24,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 16:50:24,715 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 16:50:24,715 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 16:50:24,716 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1252425297] [2021-12-14 16:50:24,716 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1252425297] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-14 16:50:24,716 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [393054108] [2021-12-14 16:50:24,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 16:50:24,717 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 16:50:24,717 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 16:50:24,723 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) [2021-12-14 16:50:24,752 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-14 16:50:24,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 16:50:24,866 INFO L263 TraceCheckSpWp]: Trace formula consists of 420 conjuncts, 12 conjunts are in the unsatisfiable core [2021-12-14 16:50:24,877 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 16:50:25,290 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 16:50:25,291 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-14 16:50:25,722 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 16:50:25,722 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [393054108] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-14 16:50:25,722 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-14 16:50:25,722 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 19 [2021-12-14 16:50:25,722 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1361713113] [2021-12-14 16:50:25,722 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-14 16:50:25,723 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2021-12-14 16:50:25,723 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 16:50:25,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-12-14 16:50:25,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=259, Unknown=0, NotChecked=0, Total=342 [2021-12-14 16:50:25,726 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 155 out of 207 [2021-12-14 16:50:25,729 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 196 places, 181 transitions, 508 flow. Second operand has 19 states, 19 states have (on average 158.0) internal successors, (3002), 19 states have internal predecessors, (3002), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 16:50:25,729 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-14 16:50:25,729 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 155 of 207 [2021-12-14 16:50:25,729 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-14 16:50:26,462 INFO L129 PetriNetUnfolder]: 1018/2909 cut-off events. [2021-12-14 16:50:26,463 INFO L130 PetriNetUnfolder]: For 2212/2212 co-relation queries the response was YES. [2021-12-14 16:50:26,475 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6340 conditions, 2909 events. 1018/2909 cut-off events. For 2212/2212 co-relation queries the response was YES. Maximal size of possible extension queue 142. Compared 22115 event pairs, 400 based on Foata normal form. 54/2678 useless extension candidates. Maximal degree in co-relation 6324. Up to 775 conditions per place. [2021-12-14 16:50:26,491 INFO L132 encePairwiseOnDemand]: 193/207 looper letters, 105 selfloop transitions, 16 changer transitions 0/251 dead transitions. [2021-12-14 16:50:26,492 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 205 places, 251 transitions, 1053 flow [2021-12-14 16:50:26,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-12-14 16:50:26,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-12-14 16:50:26,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 2267 transitions. [2021-12-14 16:50:26,497 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.782263630089717 [2021-12-14 16:50:26,497 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 2267 transitions. [2021-12-14 16:50:26,497 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 2267 transitions. [2021-12-14 16:50:26,498 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-14 16:50:26,498 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 2267 transitions. [2021-12-14 16:50:26,503 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 161.92857142857142) internal successors, (2267), 14 states have internal predecessors, (2267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 16:50:26,507 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 207.0) internal successors, (3105), 15 states have internal predecessors, (3105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 16:50:26,508 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 207.0) internal successors, (3105), 15 states have internal predecessors, (3105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 16:50:26,508 INFO L186 Difference]: Start difference. First operand has 196 places, 181 transitions, 508 flow. Second operand 14 states and 2267 transitions. [2021-12-14 16:50:26,509 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 205 places, 251 transitions, 1053 flow [2021-12-14 16:50:26,558 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 196 places, 251 transitions, 1013 flow, removed 11 selfloop flow, removed 9 redundant places. [2021-12-14 16:50:26,561 INFO L242 Difference]: Finished difference. Result has 202 places, 189 transitions, 581 flow [2021-12-14 16:50:26,561 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=207, PETRI_DIFFERENCE_MINUEND_FLOW=482, PETRI_DIFFERENCE_MINUEND_PLACES=183, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=181, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=166, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=581, PETRI_PLACES=202, PETRI_TRANSITIONS=189} [2021-12-14 16:50:26,562 INFO L334 CegarLoopForPetriNet]: 180 programPoint places, 22 predicate places. [2021-12-14 16:50:26,562 INFO L470 AbstractCegarLoop]: Abstraction has has 202 places, 189 transitions, 581 flow [2021-12-14 16:50:26,563 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 158.0) internal successors, (3002), 19 states have internal predecessors, (3002), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 16:50:26,563 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-14 16:50:26,564 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] [2021-12-14 16:50:26,590 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2021-12-14 16:50:26,764 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,SelfDestructingSolverStorable5 [2021-12-14 16:50:26,765 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err1INUSE_VIOLATION, thread1Err5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] === [2021-12-14 16:50:26,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 16:50:26,765 INFO L85 PathProgramCache]: Analyzing trace with hash -2110527098, now seen corresponding path program 1 times [2021-12-14 16:50:26,765 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 16:50:26,765 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [709866886] [2021-12-14 16:50:26,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 16:50:26,766 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 16:50:26,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 16:50:26,916 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 16:50:26,916 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 16:50:26,916 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [709866886] [2021-12-14 16:50:26,917 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [709866886] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-14 16:50:26,917 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [503366663] [2021-12-14 16:50:26,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 16:50:26,917 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 16:50:26,917 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 16:50:26,920 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) [2021-12-14 16:50:26,948 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-12-14 16:50:27,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 16:50:27,051 INFO L263 TraceCheckSpWp]: Trace formula consists of 420 conjuncts, 12 conjunts are in the unsatisfiable core [2021-12-14 16:50:27,063 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 16:50:27,440 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 16:50:27,440 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-14 16:50:27,828 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 16:50:27,829 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [503366663] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-14 16:50:27,829 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-14 16:50:27,829 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2021-12-14 16:50:27,829 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [386334506] [2021-12-14 16:50:27,830 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-14 16:50:27,830 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-12-14 16:50:27,830 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 16:50:27,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-12-14 16:50:27,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=233, Unknown=0, NotChecked=0, Total=306 [2021-12-14 16:50:27,833 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 155 out of 207 [2021-12-14 16:50:27,836 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 202 places, 189 transitions, 581 flow. Second operand has 18 states, 18 states have (on average 158.22222222222223) internal successors, (2848), 18 states have internal predecessors, (2848), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 16:50:27,836 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-14 16:50:27,836 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 155 of 207 [2021-12-14 16:50:27,836 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-14 16:50:28,470 INFO L129 PetriNetUnfolder]: 723/2424 cut-off events. [2021-12-14 16:50:28,471 INFO L130 PetriNetUnfolder]: For 1759/1759 co-relation queries the response was YES. [2021-12-14 16:50:28,483 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5063 conditions, 2424 events. 723/2424 cut-off events. For 1759/1759 co-relation queries the response was YES. Maximal size of possible extension queue 122. Compared 17869 event pairs, 197 based on Foata normal form. 91/2310 useless extension candidates. Maximal degree in co-relation 5045. Up to 609 conditions per place. [2021-12-14 16:50:28,495 INFO L132 encePairwiseOnDemand]: 191/207 looper letters, 65 selfloop transitions, 14 changer transitions 20/229 dead transitions. [2021-12-14 16:50:28,496 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 215 places, 229 transitions, 966 flow [2021-12-14 16:50:28,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-12-14 16:50:28,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-12-14 16:50:28,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 2251 transitions. [2021-12-14 16:50:28,501 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7767425810904072 [2021-12-14 16:50:28,502 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 2251 transitions. [2021-12-14 16:50:28,502 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 2251 transitions. [2021-12-14 16:50:28,503 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-14 16:50:28,503 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 2251 transitions. [2021-12-14 16:50:28,508 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 160.78571428571428) internal successors, (2251), 14 states have internal predecessors, (2251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 16:50:28,514 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 207.0) internal successors, (3105), 15 states have internal predecessors, (3105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 16:50:28,515 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 207.0) internal successors, (3105), 15 states have internal predecessors, (3105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 16:50:28,516 INFO L186 Difference]: Start difference. First operand has 202 places, 189 transitions, 581 flow. Second operand 14 states and 2251 transitions. [2021-12-14 16:50:28,516 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 215 places, 229 transitions, 966 flow [2021-12-14 16:50:28,520 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 210 places, 229 transitions, 949 flow, removed 3 selfloop flow, removed 5 redundant places. [2021-12-14 16:50:28,524 INFO L242 Difference]: Finished difference. Result has 214 places, 187 transitions, 586 flow [2021-12-14 16:50:28,525 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=207, PETRI_DIFFERENCE_MINUEND_FLOW=564, PETRI_DIFFERENCE_MINUEND_PLACES=197, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=189, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=175, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=586, PETRI_PLACES=214, PETRI_TRANSITIONS=187} [2021-12-14 16:50:28,526 INFO L334 CegarLoopForPetriNet]: 180 programPoint places, 34 predicate places. [2021-12-14 16:50:28,526 INFO L470 AbstractCegarLoop]: Abstraction has has 214 places, 187 transitions, 586 flow [2021-12-14 16:50:28,527 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 158.22222222222223) internal successors, (2848), 18 states have internal predecessors, (2848), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 16:50:28,527 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-14 16:50:28,528 INFO L254 CegarLoopForPetriNet]: trace histogram [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] [2021-12-14 16:50:28,557 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-12-14 16:50:28,743 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,SelfDestructingSolverStorable6 [2021-12-14 16:50:28,744 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err1INUSE_VIOLATION, thread1Err5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] === [2021-12-14 16:50:28,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 16:50:28,744 INFO L85 PathProgramCache]: Analyzing trace with hash 211300924, now seen corresponding path program 2 times [2021-12-14 16:50:28,744 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 16:50:28,744 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1636291738] [2021-12-14 16:50:28,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 16:50:28,745 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 16:50:28,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 16:50:28,899 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-12-14 16:50:28,899 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 16:50:28,899 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1636291738] [2021-12-14 16:50:28,900 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1636291738] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-14 16:50:28,900 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [760115911] [2021-12-14 16:50:28,900 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-14 16:50:28,901 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 16:50:28,901 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 16:50:28,902 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) [2021-12-14 16:50:28,923 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-12-14 16:50:29,045 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-12-14 16:50:29,046 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-14 16:50:29,047 INFO L263 TraceCheckSpWp]: Trace formula consists of 433 conjuncts, 12 conjunts are in the unsatisfiable core [2021-12-14 16:50:29,055 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 16:50:29,406 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 1 proven. 8 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-12-14 16:50:29,406 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-14 16:50:29,734 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-12-14 16:50:29,734 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [760115911] provided 1 perfect and 1 imperfect interpolant sequences [2021-12-14 16:50:29,734 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2021-12-14 16:50:29,734 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [9, 9] total 18 [2021-12-14 16:50:29,735 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1993463422] [2021-12-14 16:50:29,735 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 16:50:29,735 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-14 16:50:29,735 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 16:50:29,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-14 16:50:29,736 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=236, Unknown=0, NotChecked=0, Total=306 [2021-12-14 16:50:29,737 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 155 out of 207 [2021-12-14 16:50:29,739 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 214 places, 187 transitions, 586 flow. Second operand has 9 states, 9 states have (on average 159.22222222222223) internal successors, (1433), 9 states have internal predecessors, (1433), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 16:50:29,739 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-14 16:50:29,739 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 155 of 207 [2021-12-14 16:50:29,739 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-14 16:50:30,102 INFO L129 PetriNetUnfolder]: 493/1507 cut-off events. [2021-12-14 16:50:30,102 INFO L130 PetriNetUnfolder]: For 1816/1816 co-relation queries the response was YES. [2021-12-14 16:50:30,111 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3751 conditions, 1507 events. 493/1507 cut-off events. For 1816/1816 co-relation queries the response was YES. Maximal size of possible extension queue 87. Compared 9543 event pairs, 213 based on Foata normal form. 31/1408 useless extension candidates. Maximal degree in co-relation 3729. Up to 694 conditions per place. [2021-12-14 16:50:30,119 INFO L132 encePairwiseOnDemand]: 195/207 looper letters, 58 selfloop transitions, 11 changer transitions 0/199 dead transitions. [2021-12-14 16:50:30,120 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 219 places, 199 transitions, 793 flow [2021-12-14 16:50:30,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-12-14 16:50:30,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-12-14 16:50:30,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1605 transitions. [2021-12-14 16:50:30,124 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7753623188405797 [2021-12-14 16:50:30,125 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1605 transitions. [2021-12-14 16:50:30,125 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1605 transitions. [2021-12-14 16:50:30,126 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-14 16:50:30,126 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1605 transitions. [2021-12-14 16:50:30,129 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 160.5) internal successors, (1605), 10 states have internal predecessors, (1605), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 16:50:30,133 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 207.0) internal successors, (2277), 11 states have internal predecessors, (2277), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 16:50:30,134 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 207.0) internal successors, (2277), 11 states have internal predecessors, (2277), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 16:50:30,134 INFO L186 Difference]: Start difference. First operand has 214 places, 187 transitions, 586 flow. Second operand 10 states and 1605 transitions. [2021-12-14 16:50:30,134 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 219 places, 199 transitions, 793 flow [2021-12-14 16:50:30,140 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 205 places, 199 transitions, 740 flow, removed 17 selfloop flow, removed 14 redundant places. [2021-12-14 16:50:30,143 INFO L242 Difference]: Finished difference. Result has 207 places, 190 transitions, 595 flow [2021-12-14 16:50:30,144 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=207, PETRI_DIFFERENCE_MINUEND_FLOW=545, PETRI_DIFFERENCE_MINUEND_PLACES=196, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=187, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=176, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=595, PETRI_PLACES=207, PETRI_TRANSITIONS=190} [2021-12-14 16:50:30,146 INFO L334 CegarLoopForPetriNet]: 180 programPoint places, 27 predicate places. [2021-12-14 16:50:30,146 INFO L470 AbstractCegarLoop]: Abstraction has has 207 places, 190 transitions, 595 flow [2021-12-14 16:50:30,148 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 159.22222222222223) internal successors, (1433), 9 states have internal predecessors, (1433), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 16:50:30,148 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-14 16:50:30,148 INFO L254 CegarLoopForPetriNet]: trace histogram [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] [2021-12-14 16:50:30,178 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-12-14 16:50:30,359 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 16:50:30,360 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err1INUSE_VIOLATION, thread1Err5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] === [2021-12-14 16:50:30,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 16:50:30,360 INFO L85 PathProgramCache]: Analyzing trace with hash -1954702868, now seen corresponding path program 2 times [2021-12-14 16:50:30,360 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 16:50:30,361 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [14029994] [2021-12-14 16:50:30,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 16:50:30,361 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 16:50:30,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 16:50:30,526 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-12-14 16:50:30,526 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 16:50:30,527 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [14029994] [2021-12-14 16:50:30,527 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [14029994] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-14 16:50:30,528 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [928993131] [2021-12-14 16:50:30,528 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-14 16:50:30,528 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 16:50:30,528 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 16:50:30,529 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) [2021-12-14 16:50:30,543 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-12-14 16:50:30,667 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-12-14 16:50:30,668 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-14 16:50:30,670 INFO L263 TraceCheckSpWp]: Trace formula consists of 433 conjuncts, 12 conjunts are in the unsatisfiable core [2021-12-14 16:50:30,672 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 16:50:31,016 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 1 proven. 8 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-12-14 16:50:31,017 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-14 16:50:31,369 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-12-14 16:50:31,369 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [928993131] provided 1 perfect and 1 imperfect interpolant sequences [2021-12-14 16:50:31,369 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2021-12-14 16:50:31,369 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [9, 9] total 18 [2021-12-14 16:50:31,370 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [682747117] [2021-12-14 16:50:31,370 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 16:50:31,370 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-14 16:50:31,370 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 16:50:31,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-14 16:50:31,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=236, Unknown=0, NotChecked=0, Total=306 [2021-12-14 16:50:31,373 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 155 out of 207 [2021-12-14 16:50:31,386 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 207 places, 190 transitions, 595 flow. Second operand has 9 states, 9 states have (on average 159.22222222222223) internal successors, (1433), 9 states have internal predecessors, (1433), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 16:50:31,386 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-14 16:50:31,387 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 155 of 207 [2021-12-14 16:50:31,387 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-14 16:50:31,705 INFO L129 PetriNetUnfolder]: 419/1259 cut-off events. [2021-12-14 16:50:31,705 INFO L130 PetriNetUnfolder]: For 1220/1220 co-relation queries the response was YES. [2021-12-14 16:50:31,711 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3040 conditions, 1259 events. 419/1259 cut-off events. For 1220/1220 co-relation queries the response was YES. Maximal size of possible extension queue 71. Compared 7352 event pairs, 165 based on Foata normal form. 38/1184 useless extension candidates. Maximal degree in co-relation 3021. Up to 542 conditions per place. [2021-12-14 16:50:31,717 INFO L132 encePairwiseOnDemand]: 197/207 looper letters, 74 selfloop transitions, 10 changer transitions 0/214 dead transitions. [2021-12-14 16:50:31,718 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 216 places, 214 transitions, 886 flow [2021-12-14 16:50:31,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-12-14 16:50:31,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-12-14 16:50:31,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1611 transitions. [2021-12-14 16:50:31,722 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7782608695652173 [2021-12-14 16:50:31,722 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1611 transitions. [2021-12-14 16:50:31,722 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1611 transitions. [2021-12-14 16:50:31,723 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-14 16:50:31,723 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1611 transitions. [2021-12-14 16:50:31,726 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 161.1) internal successors, (1611), 10 states have internal predecessors, (1611), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 16:50:31,730 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 207.0) internal successors, (2277), 11 states have internal predecessors, (2277), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 16:50:31,730 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 207.0) internal successors, (2277), 11 states have internal predecessors, (2277), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 16:50:31,730 INFO L186 Difference]: Start difference. First operand has 207 places, 190 transitions, 595 flow. Second operand 10 states and 1611 transitions. [2021-12-14 16:50:31,730 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 216 places, 214 transitions, 886 flow [2021-12-14 16:50:31,735 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 209 places, 214 transitions, 855 flow, removed 6 selfloop flow, removed 7 redundant places. [2021-12-14 16:50:31,738 INFO L242 Difference]: Finished difference. Result has 210 places, 191 transitions, 600 flow [2021-12-14 16:50:31,738 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=207, PETRI_DIFFERENCE_MINUEND_FLOW=571, PETRI_DIFFERENCE_MINUEND_PLACES=200, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=190, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=180, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=600, PETRI_PLACES=210, PETRI_TRANSITIONS=191} [2021-12-14 16:50:31,739 INFO L334 CegarLoopForPetriNet]: 180 programPoint places, 30 predicate places. [2021-12-14 16:50:31,739 INFO L470 AbstractCegarLoop]: Abstraction has has 210 places, 191 transitions, 600 flow [2021-12-14 16:50:31,740 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 159.22222222222223) internal successors, (1433), 9 states have internal predecessors, (1433), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 16:50:31,740 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-14 16:50:31,740 INFO L254 CegarLoopForPetriNet]: trace histogram [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] [2021-12-14 16:50:31,767 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-12-14 16:50:31,959 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 16:50:31,960 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err1INUSE_VIOLATION, thread1Err5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] === [2021-12-14 16:50:31,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 16:50:31,960 INFO L85 PathProgramCache]: Analyzing trace with hash 1907294439, now seen corresponding path program 1 times [2021-12-14 16:50:31,961 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 16:50:31,961 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [5581832] [2021-12-14 16:50:31,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 16:50:31,961 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 16:50:32,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 16:50:32,311 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-12-14 16:50:32,311 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 16:50:32,311 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [5581832] [2021-12-14 16:50:32,312 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [5581832] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-14 16:50:32,312 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1045367346] [2021-12-14 16:50:32,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 16:50:32,312 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 16:50:32,312 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 16:50:32,316 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-14 16:50:32,321 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-12-14 16:50:32,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 16:50:32,452 INFO L263 TraceCheckSpWp]: Trace formula consists of 464 conjuncts, 61 conjunts are in the unsatisfiable core [2021-12-14 16:50:32,454 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 16:50:33,070 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2021-12-14 16:50:33,172 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-12-14 16:50:33,172 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-14 16:50:33,478 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-14 16:50:33,478 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 20 treesize of output 21 [2021-12-14 16:50:33,496 INFO L354 Elim1Store]: treesize reduction 11, result has 26.7 percent of original size [2021-12-14 16:50:33,497 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 11 [2021-12-14 16:50:33,702 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-12-14 16:50:33,702 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1045367346] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-14 16:50:33,703 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-14 16:50:33,703 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 17, 10] total 24 [2021-12-14 16:50:33,703 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1496192089] [2021-12-14 16:50:33,703 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-14 16:50:33,704 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2021-12-14 16:50:33,704 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 16:50:33,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-12-14 16:50:33,705 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=488, Unknown=0, NotChecked=0, Total=552 [2021-12-14 16:50:33,707 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 112 out of 207 [2021-12-14 16:50:33,709 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 210 places, 191 transitions, 600 flow. Second operand has 24 states, 24 states have (on average 117.04166666666667) internal successors, (2809), 24 states have internal predecessors, (2809), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 16:50:33,709 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-14 16:50:33,709 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 112 of 207 [2021-12-14 16:50:33,709 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-14 16:50:36,595 INFO L129 PetriNetUnfolder]: 5301/10733 cut-off events. [2021-12-14 16:50:36,596 INFO L130 PetriNetUnfolder]: For 12109/12109 co-relation queries the response was YES. [2021-12-14 16:50:36,641 INFO L84 FinitePrefix]: Finished finitePrefix Result has 28340 conditions, 10733 events. 5301/10733 cut-off events. For 12109/12109 co-relation queries the response was YES. Maximal size of possible extension queue 574. Compared 89741 event pairs, 1137 based on Foata normal form. 2/10094 useless extension candidates. Maximal degree in co-relation 28320. Up to 3397 conditions per place. [2021-12-14 16:50:36,699 INFO L132 encePairwiseOnDemand]: 183/207 looper letters, 281 selfloop transitions, 81 changer transitions 8/462 dead transitions. [2021-12-14 16:50:36,699 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 240 places, 462 transitions, 2487 flow [2021-12-14 16:50:36,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-12-14 16:50:36,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2021-12-14 16:50:36,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 3799 transitions. [2021-12-14 16:50:36,711 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.5920211937042231 [2021-12-14 16:50:36,711 INFO L72 ComplementDD]: Start complementDD. Operand 31 states and 3799 transitions. [2021-12-14 16:50:36,711 INFO L73 IsDeterministic]: Start isDeterministic. Operand 31 states and 3799 transitions. [2021-12-14 16:50:36,713 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-14 16:50:36,714 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 31 states and 3799 transitions. [2021-12-14 16:50:36,721 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 32 states, 31 states have (on average 122.54838709677419) internal successors, (3799), 31 states have internal predecessors, (3799), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 16:50:36,730 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 32 states, 32 states have (on average 207.0) internal successors, (6624), 32 states have internal predecessors, (6624), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 16:50:36,732 INFO L81 ComplementDD]: Finished complementDD. Result has 32 states, 32 states have (on average 207.0) internal successors, (6624), 32 states have internal predecessors, (6624), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 16:50:36,732 INFO L186 Difference]: Start difference. First operand has 210 places, 191 transitions, 600 flow. Second operand 31 states and 3799 transitions. [2021-12-14 16:50:36,732 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 240 places, 462 transitions, 2487 flow [2021-12-14 16:50:36,765 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 232 places, 462 transitions, 2454 flow, removed 0 selfloop flow, removed 8 redundant places. [2021-12-14 16:50:36,770 INFO L242 Difference]: Finished difference. Result has 248 places, 260 transitions, 1259 flow [2021-12-14 16:50:36,771 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=207, PETRI_DIFFERENCE_MINUEND_FLOW=583, PETRI_DIFFERENCE_MINUEND_PLACES=202, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=191, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=158, PETRI_DIFFERENCE_SUBTRAHEND_STATES=31, PETRI_FLOW=1259, PETRI_PLACES=248, PETRI_TRANSITIONS=260} [2021-12-14 16:50:36,772 INFO L334 CegarLoopForPetriNet]: 180 programPoint places, 68 predicate places. [2021-12-14 16:50:36,772 INFO L470 AbstractCegarLoop]: Abstraction has has 248 places, 260 transitions, 1259 flow [2021-12-14 16:50:36,773 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 117.04166666666667) internal successors, (2809), 24 states have internal predecessors, (2809), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 16:50:36,773 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-14 16:50:36,773 INFO L254 CegarLoopForPetriNet]: trace histogram [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] [2021-12-14 16:50:36,800 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-12-14 16:50:36,987 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2021-12-14 16:50:36,988 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err1INUSE_VIOLATION, thread1Err5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] === [2021-12-14 16:50:36,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 16:50:36,988 INFO L85 PathProgramCache]: Analyzing trace with hash 756627477, now seen corresponding path program 2 times [2021-12-14 16:50:36,988 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 16:50:36,988 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [662687874] [2021-12-14 16:50:36,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 16:50:36,988 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 16:50:37,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 16:50:37,401 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-12-14 16:50:37,401 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 16:50:37,401 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [662687874] [2021-12-14 16:50:37,402 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [662687874] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-14 16:50:37,402 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1741217040] [2021-12-14 16:50:37,402 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-14 16:50:37,402 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 16:50:37,402 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 16:50:37,408 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-14 16:50:37,427 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-12-14 16:50:37,532 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-12-14 16:50:37,532 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-14 16:50:37,535 INFO L263 TraceCheckSpWp]: Trace formula consists of 464 conjuncts, 66 conjunts are in the unsatisfiable core [2021-12-14 16:50:37,538 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 16:50:37,622 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-12-14 16:50:37,742 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-12-14 16:50:37,742 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 14 [2021-12-14 16:50:37,781 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-12-14 16:50:37,781 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2021-12-14 16:50:37,989 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2021-12-14 16:50:38,129 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2021-12-14 16:50:38,345 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-12-14 16:50:38,345 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-14 16:50:38,594 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_383 (Array Int Int))) (= c_~s_2~0 (select (select (store |c_#memory_int| |c_thread1Thread1of1ForFork3_~#t3~0.base| v_ArrVal_383) c_~X_0~0.base) (+ c_~X_0~0.offset 4)))) is different from false [2021-12-14 16:50:38,639 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_383 (Array Int Int))) (= (+ c_~s_2~0 c_~t_4~0) (select (select (store |c_#memory_int| |c_thread1Thread1of1ForFork3_~#t3~0.base| v_ArrVal_383) c_~X_0~0.base) (+ c_~X_0~0.offset 4)))) is different from false [2021-12-14 16:50:38,648 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-14 16:50:38,648 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 48 treesize of output 39 [2021-12-14 16:50:38,651 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-12-14 16:50:39,031 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 9 trivial. 1 not checked. [2021-12-14 16:50:39,032 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1741217040] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-14 16:50:39,032 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-14 16:50:39,032 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 37 [2021-12-14 16:50:39,032 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1268205337] [2021-12-14 16:50:39,032 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-14 16:50:39,033 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2021-12-14 16:50:39,033 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 16:50:39,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2021-12-14 16:50:39,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=1096, Unknown=2, NotChecked=134, Total=1332 [2021-12-14 16:50:39,036 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 103 out of 207 [2021-12-14 16:50:39,039 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 248 places, 260 transitions, 1259 flow. Second operand has 37 states, 37 states have (on average 106.27027027027027) internal successors, (3932), 37 states have internal predecessors, (3932), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 16:50:39,039 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-14 16:50:39,039 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 103 of 207 [2021-12-14 16:50:39,039 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-14 16:50:45,111 INFO L129 PetriNetUnfolder]: 13661/26464 cut-off events. [2021-12-14 16:50:45,112 INFO L130 PetriNetUnfolder]: For 74906/75002 co-relation queries the response was YES. [2021-12-14 16:50:45,505 INFO L84 FinitePrefix]: Finished finitePrefix Result has 87268 conditions, 26464 events. 13661/26464 cut-off events. For 74906/75002 co-relation queries the response was YES. Maximal size of possible extension queue 1432. Compared 245633 event pairs, 1369 based on Foata normal form. 78/24901 useless extension candidates. Maximal degree in co-relation 87232. Up to 7833 conditions per place. [2021-12-14 16:50:45,661 INFO L132 encePairwiseOnDemand]: 178/207 looper letters, 408 selfloop transitions, 255 changer transitions 4/760 dead transitions. [2021-12-14 16:50:45,661 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 279 places, 760 transitions, 5837 flow [2021-12-14 16:50:45,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-12-14 16:50:45,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2021-12-14 16:50:45,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 4127 transitions. [2021-12-14 16:50:45,673 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.5538110574342459 [2021-12-14 16:50:45,673 INFO L72 ComplementDD]: Start complementDD. Operand 36 states and 4127 transitions. [2021-12-14 16:50:45,673 INFO L73 IsDeterministic]: Start isDeterministic. Operand 36 states and 4127 transitions. [2021-12-14 16:50:45,675 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-14 16:50:45,675 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 36 states and 4127 transitions. [2021-12-14 16:50:45,683 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 37 states, 36 states have (on average 114.63888888888889) internal successors, (4127), 36 states have internal predecessors, (4127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 16:50:45,695 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 37 states, 37 states have (on average 207.0) internal successors, (7659), 37 states have internal predecessors, (7659), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 16:50:45,698 INFO L81 ComplementDD]: Finished complementDD. Result has 37 states, 37 states have (on average 207.0) internal successors, (7659), 37 states have internal predecessors, (7659), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 16:50:45,698 INFO L186 Difference]: Start difference. First operand has 248 places, 260 transitions, 1259 flow. Second operand 36 states and 4127 transitions. [2021-12-14 16:50:45,698 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 279 places, 760 transitions, 5837 flow [2021-12-14 16:50:46,141 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 265 places, 760 transitions, 5640 flow, removed 86 selfloop flow, removed 14 redundant places. [2021-12-14 16:50:46,149 INFO L242 Difference]: Finished difference. Result has 289 places, 518 transitions, 4417 flow [2021-12-14 16:50:46,150 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=207, PETRI_DIFFERENCE_MINUEND_FLOW=1192, PETRI_DIFFERENCE_MINUEND_PLACES=230, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=260, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=52, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=168, PETRI_DIFFERENCE_SUBTRAHEND_STATES=36, PETRI_FLOW=4417, PETRI_PLACES=289, PETRI_TRANSITIONS=518} [2021-12-14 16:50:46,151 INFO L334 CegarLoopForPetriNet]: 180 programPoint places, 109 predicate places. [2021-12-14 16:50:46,151 INFO L470 AbstractCegarLoop]: Abstraction has has 289 places, 518 transitions, 4417 flow [2021-12-14 16:50:46,153 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 37 states have (on average 106.27027027027027) internal successors, (3932), 37 states have internal predecessors, (3932), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 16:50:46,153 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-14 16:50:46,153 INFO L254 CegarLoopForPetriNet]: trace histogram [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] [2021-12-14 16:50:46,181 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-12-14 16:50:46,367 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 16:50:46,368 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err1INUSE_VIOLATION, thread1Err5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] === [2021-12-14 16:50:46,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 16:50:46,368 INFO L85 PathProgramCache]: Analyzing trace with hash 1962673649, now seen corresponding path program 3 times [2021-12-14 16:50:46,369 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 16:50:46,369 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1997181614] [2021-12-14 16:50:46,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 16:50:46,369 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 16:50:46,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 16:50:46,844 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-12-14 16:50:46,845 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 16:50:46,845 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1997181614] [2021-12-14 16:50:46,845 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1997181614] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-14 16:50:46,845 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1396626934] [2021-12-14 16:50:46,845 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-12-14 16:50:46,845 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 16:50:46,845 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 16:50:46,846 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-14 16:50:46,846 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-12-14 16:50:46,963 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-12-14 16:50:46,964 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-14 16:50:46,966 INFO L263 TraceCheckSpWp]: Trace formula consists of 451 conjuncts, 66 conjunts are in the unsatisfiable core [2021-12-14 16:50:46,968 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 16:50:47,057 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-12-14 16:50:47,276 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-12-14 16:50:47,276 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2021-12-14 16:50:47,591 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2021-12-14 16:50:47,683 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 16:50:47,684 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2021-12-14 16:50:47,749 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2021-12-14 16:50:47,905 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-12-14 16:50:47,905 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-14 16:50:48,140 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_434 (Array Int Int))) (<= c_~s_6~0 (+ c_~s_2~0 (select (select (store |c_#memory_int| |c_thread1Thread1of1ForFork3_~#t3~0.base| v_ArrVal_434) c_~X_0~0.base) (+ c_~X_0~0.offset (* c_~i_3~0 4) 4))))) (forall ((v_ArrVal_434 (Array Int Int))) (< (+ c_~s_2~0 (select (select (store |c_#memory_int| |c_thread1Thread1of1ForFork3_~#t3~0.base| v_ArrVal_434) c_~X_0~0.base) (+ c_~X_0~0.offset (* c_~i_3~0 4) 4))) (+ c_~s_6~0 1)))) is different from false [2021-12-14 16:50:48,203 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_434 (Array Int Int)) (v_ArrVal_433 (Array Int Int))) (<= c_~s_6~0 (+ c_~s_2~0 (select (select (store (store |c_#memory_int| |c_thread1Thread1of1ForFork3_~#t2~0.base| v_ArrVal_433) |c_thread1Thread1of1ForFork3_~#t3~0.base| v_ArrVal_434) c_~X_0~0.base) (+ c_~X_0~0.offset (* c_~i_3~0 4) 4))))) (forall ((v_ArrVal_434 (Array Int Int)) (v_ArrVal_433 (Array Int Int))) (< (+ c_~s_2~0 (select (select (store (store |c_#memory_int| |c_thread1Thread1of1ForFork3_~#t2~0.base| v_ArrVal_433) |c_thread1Thread1of1ForFork3_~#t3~0.base| v_ArrVal_434) c_~X_0~0.base) (+ c_~X_0~0.offset (* c_~i_3~0 4) 4))) (+ c_~s_6~0 1)))) is different from false [2021-12-14 16:50:48,236 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_434 (Array Int Int)) (v_ArrVal_433 (Array Int Int))) (<= c_~s_6~0 (select (select (store (store |c_#memory_int| |c_thread1Thread1of1ForFork3_~#t2~0.base| v_ArrVal_433) |c_thread1Thread1of1ForFork3_~#t3~0.base| v_ArrVal_434) c_~X_0~0.base) (+ c_~X_0~0.offset 4)))) (forall ((v_ArrVal_434 (Array Int Int)) (v_ArrVal_433 (Array Int Int))) (< (select (select (store (store |c_#memory_int| |c_thread1Thread1of1ForFork3_~#t2~0.base| v_ArrVal_433) |c_thread1Thread1of1ForFork3_~#t3~0.base| v_ArrVal_434) c_~X_0~0.base) (+ c_~X_0~0.offset 4)) (+ c_~s_6~0 1)))) is different from false [2021-12-14 16:50:48,329 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_434 (Array Int Int)) (v_ArrVal_433 (Array Int Int))) (< (select (select (store (store |c_#memory_int| |c_thread1Thread1of1ForFork3_~#t2~0.base| v_ArrVal_433) |c_thread1Thread1of1ForFork3_~#t3~0.base| v_ArrVal_434) c_~X_0~0.base) (+ c_~X_0~0.offset 4)) (+ c_~s_6~0 c_~t_8~0 1))) (forall ((v_ArrVal_434 (Array Int Int)) (v_ArrVal_433 (Array Int Int))) (<= (+ c_~s_6~0 c_~t_8~0) (select (select (store (store |c_#memory_int| |c_thread1Thread1of1ForFork3_~#t2~0.base| v_ArrVal_433) |c_thread1Thread1of1ForFork3_~#t3~0.base| v_ArrVal_434) c_~X_0~0.base) (+ c_~X_0~0.offset 4))))) is different from false [2021-12-14 16:50:48,339 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-14 16:50:48,339 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 218 treesize of output 149 [2021-12-14 16:50:48,343 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 67 treesize of output 59 [2021-12-14 16:50:48,346 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 126 treesize of output 110 [2021-12-14 16:50:48,430 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-14 16:50:48,431 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-14 16:50:48,436 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-14 16:50:48,436 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 22 [2021-12-14 16:50:49,149 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 9 trivial. 1 not checked. [2021-12-14 16:50:49,149 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1396626934] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-14 16:50:49,149 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-14 16:50:49,149 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 19, 19] total 46 [2021-12-14 16:50:49,150 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [907316072] [2021-12-14 16:50:49,150 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-14 16:50:49,151 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2021-12-14 16:50:49,151 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 16:50:49,151 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2021-12-14 16:50:49,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=137, Invalid=1597, Unknown=4, NotChecked=332, Total=2070 [2021-12-14 16:50:49,154 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 102 out of 207 [2021-12-14 16:50:49,158 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 289 places, 518 transitions, 4417 flow. Second operand has 46 states, 46 states have (on average 104.8695652173913) internal successors, (4824), 46 states have internal predecessors, (4824), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 16:50:49,158 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-14 16:50:49,158 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 102 of 207 [2021-12-14 16:50:49,158 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-14 16:51:02,080 INFO L129 PetriNetUnfolder]: 28668/54326 cut-off events. [2021-12-14 16:51:02,080 INFO L130 PetriNetUnfolder]: For 569014/570385 co-relation queries the response was YES. [2021-12-14 16:51:02,991 INFO L84 FinitePrefix]: Finished finitePrefix Result has 300758 conditions, 54326 events. 28668/54326 cut-off events. For 569014/570385 co-relation queries the response was YES. Maximal size of possible extension queue 3148. Compared 554383 event pairs, 3322 based on Foata normal form. 515/51559 useless extension candidates. Maximal degree in co-relation 300702. Up to 15164 conditions per place. [2021-12-14 16:51:03,433 INFO L132 encePairwiseOnDemand]: 172/207 looper letters, 1095 selfloop transitions, 392 changer transitions 8/1587 dead transitions. [2021-12-14 16:51:03,433 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 315 places, 1587 transitions, 18728 flow [2021-12-14 16:51:03,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-12-14 16:51:03,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2021-12-14 16:51:03,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 3323 transitions. [2021-12-14 16:51:03,439 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.5535565550558055 [2021-12-14 16:51:03,439 INFO L72 ComplementDD]: Start complementDD. Operand 29 states and 3323 transitions. [2021-12-14 16:51:03,439 INFO L73 IsDeterministic]: Start isDeterministic. Operand 29 states and 3323 transitions. [2021-12-14 16:51:03,440 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-14 16:51:03,440 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 29 states and 3323 transitions. [2021-12-14 16:51:03,445 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 30 states, 29 states have (on average 114.58620689655173) internal successors, (3323), 29 states have internal predecessors, (3323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 16:51:03,452 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 30 states, 30 states have (on average 207.0) internal successors, (6210), 30 states have internal predecessors, (6210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 16:51:03,453 INFO L81 ComplementDD]: Finished complementDD. Result has 30 states, 30 states have (on average 207.0) internal successors, (6210), 30 states have internal predecessors, (6210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 16:51:03,453 INFO L186 Difference]: Start difference. First operand has 289 places, 518 transitions, 4417 flow. Second operand 29 states and 3323 transitions. [2021-12-14 16:51:03,453 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 315 places, 1587 transitions, 18728 flow [2021-12-14 16:51:10,190 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 306 places, 1587 transitions, 17260 flow, removed 722 selfloop flow, removed 9 redundant places. [2021-12-14 16:51:10,208 INFO L242 Difference]: Finished difference. Result has 324 places, 841 transitions, 9215 flow [2021-12-14 16:51:10,209 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=207, PETRI_DIFFERENCE_MINUEND_FLOW=4017, PETRI_DIFFERENCE_MINUEND_PLACES=278, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=518, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=102, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=288, PETRI_DIFFERENCE_SUBTRAHEND_STATES=29, PETRI_FLOW=9215, PETRI_PLACES=324, PETRI_TRANSITIONS=841} [2021-12-14 16:51:10,210 INFO L334 CegarLoopForPetriNet]: 180 programPoint places, 144 predicate places. [2021-12-14 16:51:10,210 INFO L470 AbstractCegarLoop]: Abstraction has has 324 places, 841 transitions, 9215 flow [2021-12-14 16:51:10,211 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 46 states, 46 states have (on average 104.8695652173913) internal successors, (4824), 46 states have internal predecessors, (4824), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 16:51:10,211 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-14 16:51:10,211 INFO L254 CegarLoopForPetriNet]: trace histogram [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] [2021-12-14 16:51:10,239 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-12-14 16:51:10,412 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 16:51:10,412 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err1INUSE_VIOLATION, thread1Err5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] === [2021-12-14 16:51:10,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 16:51:10,413 INFO L85 PathProgramCache]: Analyzing trace with hash -1232389761, now seen corresponding path program 4 times [2021-12-14 16:51:10,413 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 16:51:10,413 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1823367703] [2021-12-14 16:51:10,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 16:51:10,413 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 16:51:10,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 16:51:10,743 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-12-14 16:51:10,743 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 16:51:10,743 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1823367703] [2021-12-14 16:51:10,743 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1823367703] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-14 16:51:10,743 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1667982537] [2021-12-14 16:51:10,743 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-12-14 16:51:10,743 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 16:51:10,744 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 16:51:10,744 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-14 16:51:10,745 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-12-14 16:51:10,876 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-12-14 16:51:10,876 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-14 16:51:10,879 INFO L263 TraceCheckSpWp]: Trace formula consists of 464 conjuncts, 74 conjunts are in the unsatisfiable core [2021-12-14 16:51:10,885 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 16:51:10,963 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-12-14 16:51:11,134 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-12-14 16:51:11,134 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 14 [2021-12-14 16:51:11,162 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-12-14 16:51:11,162 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2021-12-14 16:51:11,290 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2021-12-14 16:51:11,436 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2021-12-14 16:51:11,588 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-12-14 16:51:11,588 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-14 16:51:11,863 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_485 (Array Int Int))) (= (+ c_~s_2~0 c_~t_4~0) (select (select (store |c_#memory_int| |c_thread1Thread1of1ForFork3_~#t3~0.base| v_ArrVal_485) c_~X_0~0.base) (+ c_~X_0~0.offset 4)))) is different from false [2021-12-14 16:51:11,885 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-14 16:51:11,886 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 48 treesize of output 39 [2021-12-14 16:51:11,889 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-12-14 16:51:12,219 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-12-14 16:51:12,219 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1667982537] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-14 16:51:12,219 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-14 16:51:12,220 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 19, 17] total 39 [2021-12-14 16:51:12,220 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1903375978] [2021-12-14 16:51:12,220 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-14 16:51:12,220 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 39 states [2021-12-14 16:51:12,220 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 16:51:12,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2021-12-14 16:51:12,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=109, Invalid=1300, Unknown=1, NotChecked=72, Total=1482 [2021-12-14 16:51:12,224 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 97 out of 207 [2021-12-14 16:51:12,226 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 324 places, 841 transitions, 9215 flow. Second operand has 39 states, 39 states have (on average 100.7948717948718) internal successors, (3931), 39 states have internal predecessors, (3931), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 16:51:12,226 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-14 16:51:12,226 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 97 of 207 [2021-12-14 16:51:12,227 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand