./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/weaver/popl20-commit-2.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 47ea0209 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fea33f55-49b0-4a78-8520-0b692bb20e54/bin/uautomizer-AkOaLMaTGY/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fea33f55-49b0-4a78-8520-0b692bb20e54/bin/uautomizer-AkOaLMaTGY/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fea33f55-49b0-4a78-8520-0b692bb20e54/bin/uautomizer-AkOaLMaTGY/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fea33f55-49b0-4a78-8520-0b692bb20e54/bin/uautomizer-AkOaLMaTGY/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/popl20-commit-2.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fea33f55-49b0-4a78-8520-0b692bb20e54/bin/uautomizer-AkOaLMaTGY/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fea33f55-49b0-4a78-8520-0b692bb20e54/bin/uautomizer-AkOaLMaTGY --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash f484a00c18d1df7ceedc12992e35584262ebeacdaf88de41be4bc57f4fb5401d --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 07:45:51,377 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 07:45:51,380 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 07:45:51,453 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 07:45:51,456 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 07:45:51,463 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 07:45:51,466 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 07:45:51,471 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 07:45:51,476 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 07:45:51,484 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 07:45:51,485 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 07:45:51,488 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 07:45:51,489 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 07:45:51,493 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 07:45:51,496 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 07:45:51,505 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 07:45:51,508 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 07:45:51,509 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 07:45:51,513 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 07:45:51,527 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 07:45:51,530 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 07:45:51,532 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 07:45:51,537 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 07:45:51,538 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 07:45:51,543 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 07:45:51,544 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 07:45:51,545 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 07:45:51,547 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 07:45:51,548 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 07:45:51,550 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 07:45:51,551 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 07:45:51,552 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 07:45:51,555 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 07:45:51,557 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 07:45:51,559 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 07:45:51,559 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 07:45:51,560 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 07:45:51,560 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 07:45:51,561 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 07:45:51,562 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 07:45:51,563 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 07:45:51,564 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fea33f55-49b0-4a78-8520-0b692bb20e54/bin/uautomizer-AkOaLMaTGY/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-11-07 07:45:51,630 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 07:45:51,631 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 07:45:51,632 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-07 07:45:51,632 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-07 07:45:51,641 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-07 07:45:51,642 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-07 07:45:51,642 INFO L138 SettingsManager]: * Use SBE=true [2021-11-07 07:45:51,642 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 07:45:51,643 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-07 07:45:51,643 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 07:45:51,644 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-07 07:45:51,645 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 07:45:51,645 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 07:45:51,645 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 07:45:51,646 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 07:45:51,646 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-07 07:45:51,646 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 07:45:51,646 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 07:45:51,647 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 07:45:51,647 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 07:45:51,647 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 07:45:51,648 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 07:45:51,648 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 07:45:51,648 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 07:45:51,649 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 07:45:51,649 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 07:45:51,649 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-07 07:45:51,649 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 07:45:51,650 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-07 07:45:51,650 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-07 07:45:51,650 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 07:45:51,650 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 07:45:51,651 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:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fea33f55-49b0-4a78-8520-0b692bb20e54/bin/uautomizer-AkOaLMaTGY/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fea33f55-49b0-4a78-8520-0b692bb20e54/bin/uautomizer-AkOaLMaTGY Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f484a00c18d1df7ceedc12992e35584262ebeacdaf88de41be4bc57f4fb5401d [2021-11-07 07:45:52,095 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 07:45:52,140 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 07:45:52,143 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 07:45:52,145 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 07:45:52,146 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 07:45:52,147 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fea33f55-49b0-4a78-8520-0b692bb20e54/bin/uautomizer-AkOaLMaTGY/../../sv-benchmarks/c/weaver/popl20-commit-2.wvr.c [2021-11-07 07:45:52,255 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fea33f55-49b0-4a78-8520-0b692bb20e54/bin/uautomizer-AkOaLMaTGY/data/c61da091e/8cdb2f13ede4436ab19d7df742469d90/FLAGf25fe1a0d [2021-11-07 07:45:52,951 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 07:45:52,952 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fea33f55-49b0-4a78-8520-0b692bb20e54/sv-benchmarks/c/weaver/popl20-commit-2.wvr.c [2021-11-07 07:45:52,979 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fea33f55-49b0-4a78-8520-0b692bb20e54/bin/uautomizer-AkOaLMaTGY/data/c61da091e/8cdb2f13ede4436ab19d7df742469d90/FLAGf25fe1a0d [2021-11-07 07:45:53,246 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fea33f55-49b0-4a78-8520-0b692bb20e54/bin/uautomizer-AkOaLMaTGY/data/c61da091e/8cdb2f13ede4436ab19d7df742469d90 [2021-11-07 07:45:53,250 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 07:45:53,252 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 07:45:53,254 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 07:45:53,254 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 07:45:53,259 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 07:45:53,260 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 07:45:53" (1/1) ... [2021-11-07 07:45:53,262 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@488ab024 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:45:53, skipping insertion in model container [2021-11-07 07:45:53,262 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 07:45:53" (1/1) ... [2021-11-07 07:45:53,272 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 07:45:53,301 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 07:45:53,584 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fea33f55-49b0-4a78-8520-0b692bb20e54/sv-benchmarks/c/weaver/popl20-commit-2.wvr.c[5846,5859] [2021-11-07 07:45:53,594 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 07:45:53,607 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 07:45:53,661 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fea33f55-49b0-4a78-8520-0b692bb20e54/sv-benchmarks/c/weaver/popl20-commit-2.wvr.c[5846,5859] [2021-11-07 07:45:53,666 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 07:45:53,691 INFO L208 MainTranslator]: Completed translation [2021-11-07 07:45:53,691 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:45:53 WrapperNode [2021-11-07 07:45:53,692 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 07:45:53,695 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 07:45:53,696 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 07:45:53,697 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 07:45:53,707 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:45:53" (1/1) ... [2021-11-07 07:45:53,738 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:45:53" (1/1) ... [2021-11-07 07:45:53,791 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 07:45:53,792 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 07:45:53,792 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 07:45:53,793 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 07:45:53,818 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:45:53" (1/1) ... [2021-11-07 07:45:53,818 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:45:53" (1/1) ... [2021-11-07 07:45:53,826 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:45:53" (1/1) ... [2021-11-07 07:45:53,826 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:45:53" (1/1) ... [2021-11-07 07:45:53,870 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:45:53" (1/1) ... [2021-11-07 07:45:53,883 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:45:53" (1/1) ... [2021-11-07 07:45:53,889 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:45:53" (1/1) ... [2021-11-07 07:45:53,903 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 07:45:53,907 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 07:45:53,907 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 07:45:53,907 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 07:45:53,911 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:45:53" (1/1) ... [2021-11-07 07:45:53,923 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 07:45:53,937 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fea33f55-49b0-4a78-8520-0b692bb20e54/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:45:53,958 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fea33f55-49b0-4a78-8520-0b692bb20e54/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-07 07:45:53,978 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fea33f55-49b0-4a78-8520-0b692bb20e54/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-07 07:45:54,028 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 07:45:54,029 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-07 07:45:54,029 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-07 07:45:54,029 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-11-07 07:45:54,029 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-11-07 07:45:54,030 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-11-07 07:45:54,030 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-11-07 07:45:54,030 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-11-07 07:45:54,030 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-11-07 07:45:54,030 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2021-11-07 07:45:54,030 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2021-11-07 07:45:54,031 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-07 07:45:54,032 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-11-07 07:45:54,032 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-11-07 07:45:54,032 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-07 07:45:54,032 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 07:45:54,032 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 07:45:54,033 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-07 07:45:54,035 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-11-07 07:45:55,942 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 07:45:55,942 INFO L299 CfgBuilder]: Removed 74 assume(true) statements. [2021-11-07 07:45:55,947 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 07:45:55 BoogieIcfgContainer [2021-11-07 07:45:55,947 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 07:45:55,949 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 07:45:55,949 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 07:45:55,955 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 07:45:55,955 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 07:45:53" (1/3) ... [2021-11-07 07:45:55,957 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5deb4a37 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 07:45:55, skipping insertion in model container [2021-11-07 07:45:55,957 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:45:53" (2/3) ... [2021-11-07 07:45:55,957 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5deb4a37 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 07:45:55, skipping insertion in model container [2021-11-07 07:45:55,958 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 07:45:55" (3/3) ... [2021-11-07 07:45:55,959 INFO L111 eAbstractionObserver]: Analyzing ICFG popl20-commit-2.wvr.c [2021-11-07 07:45:55,966 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-11-07 07:45:55,966 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 07:45:55,967 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-07 07:45:55,967 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-11-07 07:45:56,050 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:45:56,050 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:45:56,051 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:45:56,051 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:45:56,051 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:45:56,052 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:45:56,052 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:45:56,052 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:45:56,053 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:45:56,053 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:45:56,053 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:45:56,054 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:45:56,054 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:45:56,054 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:45:56,054 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~short5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:45:56,055 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:45:56,055 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:45:56,055 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:45:56,056 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:45:56,057 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:45:56,057 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~short5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:45:56,058 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:45:56,058 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:45:56,058 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:45:56,059 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:45:56,060 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:45:56,060 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:45:56,060 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:45:56,061 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:45:56,061 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:45:56,062 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:45:56,062 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:45:56,062 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:45:56,062 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:45:56,063 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:45:56,063 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:45:56,063 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:45:56,063 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:45:56,064 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:45:56,064 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:45:56,064 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:45:56,064 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:45:56,065 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:45:56,065 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:45:56,065 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:45:56,065 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~short12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:45:56,067 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:45:56,067 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:45:56,067 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:45:56,067 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:45:56,068 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:45:56,068 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~short12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:45:56,069 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:45:56,069 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:45:56,069 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:45:56,070 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:45:56,071 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:45:56,071 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~short15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:45:56,072 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:45:56,072 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:45:56,072 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:45:56,073 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:45:56,074 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:45:56,074 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~short15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:45:56,075 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:45:56,075 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:45:56,075 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:45:56,076 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:45:56,076 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:45:56,076 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:45:56,077 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:45:56,077 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:45:56,078 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~nondet19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:45:56,078 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~nondet19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:45:56,078 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~nondet19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:45:56,079 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~nondet19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:45:56,079 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:45:56,079 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:45:56,080 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:45:56,080 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:45:56,080 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~nondet19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:45:56,081 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~nondet19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:45:56,082 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~nondet19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:45:56,086 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~nondet19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:45:56,086 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:45:56,086 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~short21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:45:56,087 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:45:56,087 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:45:56,089 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:45:56,089 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:45:56,090 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:45:56,090 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~short21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:45:56,097 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:45:56,098 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:45:56,098 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:45:56,098 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:45:56,099 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:45:56,099 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:45:56,100 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:45:56,100 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:45:56,100 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:45:56,100 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:45:56,101 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:45:56,101 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:45:56,102 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~nondet25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:45:56,103 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~nondet25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:45:56,103 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~nondet25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:45:56,103 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~nondet25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:45:56,103 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:45:56,104 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:45:56,104 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:45:56,104 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:45:56,104 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~nondet25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:45:56,105 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~nondet25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:45:56,105 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~nondet25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:45:56,105 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~nondet25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:45:56,105 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem26| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:45:56,105 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem26| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:45:56,106 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~short27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:45:56,106 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:45:56,106 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:45:56,106 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:45:56,107 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem26| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:45:56,107 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem26| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:45:56,108 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~short27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:45:56,108 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:45:56,108 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:45:56,108 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:45:56,109 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:45:56,109 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:45:56,110 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:45:56,110 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem29| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:45:56,110 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:45:56,110 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:45:56,111 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:45:56,111 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem29| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:45:56,111 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:45:56,112 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:45:56,112 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:45:56,114 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:45:56,114 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:45:56,114 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:45:56,115 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:45:56,115 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:45:56,115 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:45:56,115 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:45:56,116 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:45:56,116 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:45:56,116 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#t~mem32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:45:56,116 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:45:56,117 WARN L322 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork3_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:45:56,117 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:45:56,117 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#t~mem32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:45:56,117 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:45:56,118 WARN L322 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork3_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:45:56,118 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:45:56,120 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:45:56,120 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#t~short35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:45:56,121 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:45:56,121 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#t~post36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:45:56,121 WARN L322 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork3_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:45:56,121 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:45:56,122 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:45:56,122 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#t~short35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:45:56,123 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:45:56,123 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#t~post36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:45:56,123 WARN L322 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork3_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:45:56,123 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:45:56,131 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:45:56,131 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:45:56,131 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:45:56,132 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:45:56,132 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:45:56,132 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~short21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:45:56,132 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:45:56,132 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:45:56,133 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:45:56,133 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~nondet19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:45:56,135 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:45:56,137 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:45:56,137 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~nondet25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:45:56,137 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:45:56,137 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:45:56,138 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:45:56,138 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem29| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:45:56,138 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~short27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:45:56,139 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:45:56,139 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem26| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:45:56,142 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:45:56,142 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:45:56,142 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:45:56,143 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:45:56,143 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~short5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:45:56,143 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:45:56,143 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:45:56,144 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:45:56,144 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:45:56,144 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:45:56,144 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:45:56,144 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:45:56,145 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:45:56,145 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~short12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:45:56,145 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:45:56,145 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~short15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:45:56,146 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:45:56,146 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:45:56,146 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:45:56,146 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:45:56,148 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:45:56,150 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:45:56,155 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#t~mem32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:45:56,155 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#t~short35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:45:56,155 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:45:56,156 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#t~post36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:45:56,156 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:45:56,156 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:45:56,156 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:45:56,156 WARN L322 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork3_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:45:56,166 INFO L148 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2021-11-07 07:45:56,239 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 07:45:56,247 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 [2021-11-07 07:45:56,247 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-11-07 07:45:56,266 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 286 places, 298 transitions, 628 flow [2021-11-07 07:45:56,472 INFO L129 PetriNetUnfolder]: 25/294 cut-off events. [2021-11-07 07:45:56,473 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2021-11-07 07:45:56,484 INFO L84 FinitePrefix]: Finished finitePrefix Result has 311 conditions, 294 events. 25/294 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 185 event pairs, 0 based on Foata normal form. 0/268 useless extension candidates. Maximal degree in co-relation 257. Up to 2 conditions per place. [2021-11-07 07:45:56,484 INFO L82 GeneralOperation]: Start removeDead. Operand has 286 places, 298 transitions, 628 flow [2021-11-07 07:45:56,507 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 270 places, 282 transitions, 588 flow [2021-11-07 07:45:56,630 INFO L129 PetriNetUnfolder]: 25/281 cut-off events. [2021-11-07 07:45:56,630 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2021-11-07 07:45:56,631 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-07 07:45:56,632 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:45:56,634 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-11-07 07:45:56,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:45:56,647 INFO L85 PathProgramCache]: Analyzing trace with hash -304247639, now seen corresponding path program 1 times [2021-11-07 07:45:56,660 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:45:56,661 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1076603600] [2021-11-07 07:45:56,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:45:56,663 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:45:56,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:45:57,084 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:45:57,085 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:45:57,086 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1076603600] [2021-11-07 07:45:57,087 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1076603600] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 07:45:57,087 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:45:57,087 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-07 07:45:57,089 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [185985926] [2021-11-07 07:45:57,101 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-07 07:45:57,102 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:45:57,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-07 07:45:57,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-07 07:45:57,122 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 280 out of 298 [2021-11-07 07:45:57,128 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 270 places, 282 transitions, 588 flow. Second operand has 2 states, 2 states have (on average 283.5) internal successors, (567), 2 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:45:57,128 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-07 07:45:57,129 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 280 of 298 [2021-11-07 07:45:57,130 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-07 07:45:57,200 INFO L129 PetriNetUnfolder]: 8/265 cut-off events. [2021-11-07 07:45:57,200 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2021-11-07 07:45:57,201 INFO L84 FinitePrefix]: Finished finitePrefix Result has 283 conditions, 265 events. 8/265 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 156 event pairs, 0 based on Foata normal form. 17/265 useless extension candidates. Maximal degree in co-relation 277. Up to 2 conditions per place. [2021-11-07 07:45:57,204 INFO L132 encePairwiseOnDemand]: 281/298 looper letters, 0 selfloop transitions, 0 changer transitions 9/265 dead transitions. [2021-11-07 07:45:57,204 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 271 places, 265 transitions, 554 flow [2021-11-07 07:45:57,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-07 07:45:57,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2021-11-07 07:45:57,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 577 transitions. [2021-11-07 07:45:57,222 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9681208053691275 [2021-11-07 07:45:57,223 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 577 transitions. [2021-11-07 07:45:57,224 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 577 transitions. [2021-11-07 07:45:57,229 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-07 07:45:57,232 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 577 transitions. [2021-11-07 07:45:57,238 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 288.5) internal successors, (577), 2 states have internal predecessors, (577), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:45:57,248 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 298.0) internal successors, (894), 3 states have internal predecessors, (894), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:45:57,249 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 298.0) internal successors, (894), 3 states have internal predecessors, (894), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:45:57,251 INFO L186 Difference]: Start difference. First operand has 270 places, 282 transitions, 588 flow. Second operand 2 states and 577 transitions. [2021-11-07 07:45:57,253 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 271 places, 265 transitions, 554 flow [2021-11-07 07:45:57,260 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 263 places, 265 transitions, 538 flow, removed 0 selfloop flow, removed 8 redundant places. [2021-11-07 07:45:57,268 INFO L242 Difference]: Finished difference. Result has 263 places, 256 transitions, 520 flow [2021-11-07 07:45:57,271 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=298, PETRI_DIFFERENCE_MINUEND_FLOW=538, PETRI_DIFFERENCE_MINUEND_PLACES=262, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=265, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=265, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=520, PETRI_PLACES=263, PETRI_TRANSITIONS=256} [2021-11-07 07:45:57,272 INFO L334 CegarLoopForPetriNet]: 270 programPoint places, -7 predicate places. [2021-11-07 07:45:57,273 INFO L470 AbstractCegarLoop]: Abstraction has has 263 places, 256 transitions, 520 flow [2021-11-07 07:45:57,273 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 283.5) internal successors, (567), 2 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:45:57,274 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-07 07:45:57,274 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:45:57,274 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-07 07:45:57,275 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-11-07 07:45:57,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:45:57,276 INFO L85 PathProgramCache]: Analyzing trace with hash 2117883396, now seen corresponding path program 1 times [2021-11-07 07:45:57,276 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:45:57,276 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [370667101] [2021-11-07 07:45:57,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:45:57,277 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:45:57,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:45:57,796 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:45:57,797 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:45:57,797 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [370667101] [2021-11-07 07:45:57,797 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [370667101] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 07:45:57,798 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:45:57,798 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-07 07:45:57,798 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [586922346] [2021-11-07 07:45:57,800 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 07:45:57,801 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:45:57,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 07:45:57,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-07 07:45:57,807 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 227 out of 298 [2021-11-07 07:45:57,809 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 263 places, 256 transitions, 520 flow. Second operand has 5 states, 5 states have (on average 234.6) internal successors, (1173), 5 states have internal predecessors, (1173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:45:57,810 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-07 07:45:57,810 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 227 of 298 [2021-11-07 07:45:57,810 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-07 07:45:58,105 INFO L129 PetriNetUnfolder]: 96/433 cut-off events. [2021-11-07 07:45:58,105 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-11-07 07:45:58,110 INFO L84 FinitePrefix]: Finished finitePrefix Result has 582 conditions, 433 events. 96/433 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 966 event pairs, 30 based on Foata normal form. 1/389 useless extension candidates. Maximal degree in co-relation 579. Up to 107 conditions per place. [2021-11-07 07:45:58,115 INFO L132 encePairwiseOnDemand]: 290/298 looper letters, 43 selfloop transitions, 5 changer transitions 3/263 dead transitions. [2021-11-07 07:45:58,115 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 258 places, 263 transitions, 636 flow [2021-11-07 07:45:58,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 07:45:58,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-11-07 07:45:58,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1187 transitions. [2021-11-07 07:45:58,122 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7966442953020134 [2021-11-07 07:45:58,123 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1187 transitions. [2021-11-07 07:45:58,123 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1187 transitions. [2021-11-07 07:45:58,124 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-07 07:45:58,124 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1187 transitions. [2021-11-07 07:45:58,129 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 237.4) internal successors, (1187), 5 states have internal predecessors, (1187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:45:58,137 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 298.0) internal successors, (1788), 6 states have internal predecessors, (1788), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:45:58,139 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 298.0) internal successors, (1788), 6 states have internal predecessors, (1788), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:45:58,139 INFO L186 Difference]: Start difference. First operand has 263 places, 256 transitions, 520 flow. Second operand 5 states and 1187 transitions. [2021-11-07 07:45:58,139 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 258 places, 263 transitions, 636 flow [2021-11-07 07:45:58,144 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 258 places, 263 transitions, 636 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-11-07 07:45:58,153 INFO L242 Difference]: Finished difference. Result has 261 places, 260 transitions, 557 flow [2021-11-07 07:45:58,154 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=298, PETRI_DIFFERENCE_MINUEND_FLOW=520, PETRI_DIFFERENCE_MINUEND_PLACES=254, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=256, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=251, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=557, PETRI_PLACES=261, PETRI_TRANSITIONS=260} [2021-11-07 07:45:58,155 INFO L334 CegarLoopForPetriNet]: 270 programPoint places, -9 predicate places. [2021-11-07 07:45:58,155 INFO L470 AbstractCegarLoop]: Abstraction has has 261 places, 260 transitions, 557 flow [2021-11-07 07:45:58,156 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 234.6) internal successors, (1173), 5 states have internal predecessors, (1173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:45:58,157 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-07 07:45:58,157 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:45:58,157 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-07 07:45:58,157 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-11-07 07:45:58,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:45:58,159 INFO L85 PathProgramCache]: Analyzing trace with hash -1797839444, now seen corresponding path program 1 times [2021-11-07 07:45:58,159 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:45:58,159 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [398302097] [2021-11-07 07:45:58,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:45:58,160 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:45:58,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:45:58,454 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:45:58,454 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:45:58,455 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [398302097] [2021-11-07 07:45:58,455 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [398302097] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 07:45:58,455 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:45:58,455 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-07 07:45:58,456 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [354905301] [2021-11-07 07:45:58,457 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-07 07:45:58,457 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:45:58,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-07 07:45:58,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-11-07 07:45:58,462 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 224 out of 298 [2021-11-07 07:45:58,465 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 261 places, 260 transitions, 557 flow. Second operand has 6 states, 6 states have (on average 229.83333333333334) internal successors, (1379), 6 states have internal predecessors, (1379), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:45:58,465 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-07 07:45:58,465 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 224 of 298 [2021-11-07 07:45:58,465 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-07 07:45:58,856 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1216] L131-->L135: Formula: (and (= v_~manager_back~0_122 (+ v_~manager_back~0_123 1)) (= |v_thread4Thread1of1ForFork3_assume_abort_if_not_#in~cond_1| v_thread4Thread1of1ForFork3_assume_abort_if_not_~cond_1) (not (= v_thread4Thread1of1ForFork3_assume_abort_if_not_~cond_1 0)) (not (= (ite (and (<= 0 v_~manager_back~0_123) (< v_~manager_back~0_123 v_~manager_size~0_46)) 1 0) 0)) (= |v_thread4Thread1of1ForFork3_assume_abort_if_not_#in~cond_1| (ite (= (select (select |v_#memory_int_147| v_~manager~0.base_65) (+ v_~manager~0.offset_65 (* v_~manager_back~0_123 4))) v_~update~0_61) 1 0))) InVars {~manager~0.offset=v_~manager~0.offset_65, ~manager~0.base=v_~manager~0.base_65, #memory_int=|v_#memory_int_147|, ~manager_back~0=v_~manager_back~0_123, ~manager_size~0=v_~manager_size~0_46, ~update~0=v_~update~0_61} OutVars{~manager~0.offset=v_~manager~0.offset_65, thread4Thread1of1ForFork3_#t~mem32=|v_thread4Thread1of1ForFork3_#t~mem32_1|, ~manager~0.base=v_~manager~0.base_65, #memory_int=|v_#memory_int_147|, ~manager_back~0=v_~manager_back~0_122, ~manager_size~0=v_~manager_size~0_46, thread4Thread1of1ForFork3_#t~post33=|v_thread4Thread1of1ForFork3_#t~post33_1|, thread4Thread1of1ForFork3_assume_abort_if_not_#in~cond=|v_thread4Thread1of1ForFork3_assume_abort_if_not_#in~cond_1|, thread4Thread1of1ForFork3_assume_abort_if_not_~cond=v_thread4Thread1of1ForFork3_assume_abort_if_not_~cond_1, ~update~0=v_~update~0_61} AuxVars[] AssignedVars[thread4Thread1of1ForFork3_#t~mem32, ~manager_back~0, thread4Thread1of1ForFork3_#t~post33, thread4Thread1of1ForFork3_assume_abort_if_not_#in~cond, thread4Thread1of1ForFork3_assume_abort_if_not_~cond][284], [Black: 300#(and (= ~safe~0 1) (= ULTIMATE.start_assume_abort_if_not_~cond 0) (= |ULTIMATE.start_assume_abort_if_not_#in~cond| 0)), 139#L105true, 289#true, 247#L123true, 292#true, 192#L75true, 176#L135true, Black: 298#(and (= ~safe~0 1) (= |ULTIMATE.start_assume_abort_if_not_#in~cond| 0)), 305#true, 81#L179-4true, Black: 294#(= ~safe~0 1)]) [2021-11-07 07:45:58,856 INFO L384 tUnfolder$Statistics]: this new event has 193 ancestors and is cut-off event [2021-11-07 07:45:58,857 INFO L387 tUnfolder$Statistics]: existing Event has 189 ancestors and is cut-off event [2021-11-07 07:45:58,857 INFO L387 tUnfolder$Statistics]: existing Event has 193 ancestors and is cut-off event [2021-11-07 07:45:58,857 INFO L387 tUnfolder$Statistics]: existing Event has 193 ancestors and is cut-off event [2021-11-07 07:45:58,857 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1216] L131-->L135: Formula: (and (= v_~manager_back~0_122 (+ v_~manager_back~0_123 1)) (= |v_thread4Thread1of1ForFork3_assume_abort_if_not_#in~cond_1| v_thread4Thread1of1ForFork3_assume_abort_if_not_~cond_1) (not (= v_thread4Thread1of1ForFork3_assume_abort_if_not_~cond_1 0)) (not (= (ite (and (<= 0 v_~manager_back~0_123) (< v_~manager_back~0_123 v_~manager_size~0_46)) 1 0) 0)) (= |v_thread4Thread1of1ForFork3_assume_abort_if_not_#in~cond_1| (ite (= (select (select |v_#memory_int_147| v_~manager~0.base_65) (+ v_~manager~0.offset_65 (* v_~manager_back~0_123 4))) v_~update~0_61) 1 0))) InVars {~manager~0.offset=v_~manager~0.offset_65, ~manager~0.base=v_~manager~0.base_65, #memory_int=|v_#memory_int_147|, ~manager_back~0=v_~manager_back~0_123, ~manager_size~0=v_~manager_size~0_46, ~update~0=v_~update~0_61} OutVars{~manager~0.offset=v_~manager~0.offset_65, thread4Thread1of1ForFork3_#t~mem32=|v_thread4Thread1of1ForFork3_#t~mem32_1|, ~manager~0.base=v_~manager~0.base_65, #memory_int=|v_#memory_int_147|, ~manager_back~0=v_~manager_back~0_122, ~manager_size~0=v_~manager_size~0_46, thread4Thread1of1ForFork3_#t~post33=|v_thread4Thread1of1ForFork3_#t~post33_1|, thread4Thread1of1ForFork3_assume_abort_if_not_#in~cond=|v_thread4Thread1of1ForFork3_assume_abort_if_not_#in~cond_1|, thread4Thread1of1ForFork3_assume_abort_if_not_~cond=v_thread4Thread1of1ForFork3_assume_abort_if_not_~cond_1, ~update~0=v_~update~0_61} AuxVars[] AssignedVars[thread4Thread1of1ForFork3_#t~mem32, ~manager_back~0, thread4Thread1of1ForFork3_#t~post33, thread4Thread1of1ForFork3_assume_abort_if_not_#in~cond, thread4Thread1of1ForFork3_assume_abort_if_not_~cond][284], [Black: 300#(and (= ~safe~0 1) (= ULTIMATE.start_assume_abort_if_not_~cond 0) (= |ULTIMATE.start_assume_abort_if_not_#in~cond| 0)), 139#L105true, 289#true, 247#L123true, 162#L57true, 292#true, 176#L135true, Black: 298#(and (= ~safe~0 1) (= |ULTIMATE.start_assume_abort_if_not_#in~cond| 0)), 305#true, 81#L179-4true, Black: 294#(= ~safe~0 1)]) [2021-11-07 07:45:58,857 INFO L384 tUnfolder$Statistics]: this new event has 190 ancestors and is cut-off event [2021-11-07 07:45:58,858 INFO L387 tUnfolder$Statistics]: existing Event has 190 ancestors and is cut-off event [2021-11-07 07:45:58,858 INFO L387 tUnfolder$Statistics]: existing Event has 190 ancestors and is cut-off event [2021-11-07 07:45:58,858 INFO L387 tUnfolder$Statistics]: existing Event has 186 ancestors and is cut-off event [2021-11-07 07:45:58,861 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1216] L131-->L135: Formula: (and (= v_~manager_back~0_122 (+ v_~manager_back~0_123 1)) (= |v_thread4Thread1of1ForFork3_assume_abort_if_not_#in~cond_1| v_thread4Thread1of1ForFork3_assume_abort_if_not_~cond_1) (not (= v_thread4Thread1of1ForFork3_assume_abort_if_not_~cond_1 0)) (not (= (ite (and (<= 0 v_~manager_back~0_123) (< v_~manager_back~0_123 v_~manager_size~0_46)) 1 0) 0)) (= |v_thread4Thread1of1ForFork3_assume_abort_if_not_#in~cond_1| (ite (= (select (select |v_#memory_int_147| v_~manager~0.base_65) (+ v_~manager~0.offset_65 (* v_~manager_back~0_123 4))) v_~update~0_61) 1 0))) InVars {~manager~0.offset=v_~manager~0.offset_65, ~manager~0.base=v_~manager~0.base_65, #memory_int=|v_#memory_int_147|, ~manager_back~0=v_~manager_back~0_123, ~manager_size~0=v_~manager_size~0_46, ~update~0=v_~update~0_61} OutVars{~manager~0.offset=v_~manager~0.offset_65, thread4Thread1of1ForFork3_#t~mem32=|v_thread4Thread1of1ForFork3_#t~mem32_1|, ~manager~0.base=v_~manager~0.base_65, #memory_int=|v_#memory_int_147|, ~manager_back~0=v_~manager_back~0_122, ~manager_size~0=v_~manager_size~0_46, thread4Thread1of1ForFork3_#t~post33=|v_thread4Thread1of1ForFork3_#t~post33_1|, thread4Thread1of1ForFork3_assume_abort_if_not_#in~cond=|v_thread4Thread1of1ForFork3_assume_abort_if_not_#in~cond_1|, thread4Thread1of1ForFork3_assume_abort_if_not_~cond=v_thread4Thread1of1ForFork3_assume_abort_if_not_~cond_1, ~update~0=v_~update~0_61} AuxVars[] AssignedVars[thread4Thread1of1ForFork3_#t~mem32, ~manager_back~0, thread4Thread1of1ForFork3_#t~post33, thread4Thread1of1ForFork3_assume_abort_if_not_#in~cond, thread4Thread1of1ForFork3_assume_abort_if_not_~cond][284], [Black: 300#(and (= ~safe~0 1) (= ULTIMATE.start_assume_abort_if_not_~cond 0) (= |ULTIMATE.start_assume_abort_if_not_#in~cond| 0)), 139#L105true, 289#true, 247#L123true, 292#true, 176#L135true, Black: 298#(and (= ~safe~0 1) (= |ULTIMATE.start_assume_abort_if_not_#in~cond| 0)), 167#L87true, 305#true, 81#L179-4true, Black: 294#(= ~safe~0 1)]) [2021-11-07 07:45:58,861 INFO L384 tUnfolder$Statistics]: this new event has 191 ancestors and is cut-off event [2021-11-07 07:45:58,861 INFO L387 tUnfolder$Statistics]: existing Event has 187 ancestors and is cut-off event [2021-11-07 07:45:58,861 INFO L387 tUnfolder$Statistics]: existing Event has 187 ancestors and is cut-off event [2021-11-07 07:45:58,862 INFO L387 tUnfolder$Statistics]: existing Event has 187 ancestors and is cut-off event [2021-11-07 07:45:58,866 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1216] L131-->L135: Formula: (and (= v_~manager_back~0_122 (+ v_~manager_back~0_123 1)) (= |v_thread4Thread1of1ForFork3_assume_abort_if_not_#in~cond_1| v_thread4Thread1of1ForFork3_assume_abort_if_not_~cond_1) (not (= v_thread4Thread1of1ForFork3_assume_abort_if_not_~cond_1 0)) (not (= (ite (and (<= 0 v_~manager_back~0_123) (< v_~manager_back~0_123 v_~manager_size~0_46)) 1 0) 0)) (= |v_thread4Thread1of1ForFork3_assume_abort_if_not_#in~cond_1| (ite (= (select (select |v_#memory_int_147| v_~manager~0.base_65) (+ v_~manager~0.offset_65 (* v_~manager_back~0_123 4))) v_~update~0_61) 1 0))) InVars {~manager~0.offset=v_~manager~0.offset_65, ~manager~0.base=v_~manager~0.base_65, #memory_int=|v_#memory_int_147|, ~manager_back~0=v_~manager_back~0_123, ~manager_size~0=v_~manager_size~0_46, ~update~0=v_~update~0_61} OutVars{~manager~0.offset=v_~manager~0.offset_65, thread4Thread1of1ForFork3_#t~mem32=|v_thread4Thread1of1ForFork3_#t~mem32_1|, ~manager~0.base=v_~manager~0.base_65, #memory_int=|v_#memory_int_147|, ~manager_back~0=v_~manager_back~0_122, ~manager_size~0=v_~manager_size~0_46, thread4Thread1of1ForFork3_#t~post33=|v_thread4Thread1of1ForFork3_#t~post33_1|, thread4Thread1of1ForFork3_assume_abort_if_not_#in~cond=|v_thread4Thread1of1ForFork3_assume_abort_if_not_#in~cond_1|, thread4Thread1of1ForFork3_assume_abort_if_not_~cond=v_thread4Thread1of1ForFork3_assume_abort_if_not_~cond_1, ~update~0=v_~update~0_61} AuxVars[] AssignedVars[thread4Thread1of1ForFork3_#t~mem32, ~manager_back~0, thread4Thread1of1ForFork3_#t~post33, thread4Thread1of1ForFork3_assume_abort_if_not_#in~cond, thread4Thread1of1ForFork3_assume_abort_if_not_~cond][284], [Black: 300#(and (= ~safe~0 1) (= ULTIMATE.start_assume_abort_if_not_~cond 0) (= |ULTIMATE.start_assume_abort_if_not_#in~cond| 0)), 75#L81true, 139#L105true, 289#true, 247#L123true, 292#true, 176#L135true, Black: 298#(and (= ~safe~0 1) (= |ULTIMATE.start_assume_abort_if_not_#in~cond| 0)), 305#true, 81#L179-4true, Black: 294#(= ~safe~0 1)]) [2021-11-07 07:45:58,867 INFO L384 tUnfolder$Statistics]: this new event has 194 ancestors and is cut-off event [2021-11-07 07:45:58,867 INFO L387 tUnfolder$Statistics]: existing Event has 194 ancestors and is cut-off event [2021-11-07 07:45:58,867 INFO L387 tUnfolder$Statistics]: existing Event has 190 ancestors and is cut-off event [2021-11-07 07:45:58,867 INFO L387 tUnfolder$Statistics]: existing Event has 194 ancestors and is cut-off event [2021-11-07 07:45:58,911 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1216] L131-->L135: Formula: (and (= v_~manager_back~0_122 (+ v_~manager_back~0_123 1)) (= |v_thread4Thread1of1ForFork3_assume_abort_if_not_#in~cond_1| v_thread4Thread1of1ForFork3_assume_abort_if_not_~cond_1) (not (= v_thread4Thread1of1ForFork3_assume_abort_if_not_~cond_1 0)) (not (= (ite (and (<= 0 v_~manager_back~0_123) (< v_~manager_back~0_123 v_~manager_size~0_46)) 1 0) 0)) (= |v_thread4Thread1of1ForFork3_assume_abort_if_not_#in~cond_1| (ite (= (select (select |v_#memory_int_147| v_~manager~0.base_65) (+ v_~manager~0.offset_65 (* v_~manager_back~0_123 4))) v_~update~0_61) 1 0))) InVars {~manager~0.offset=v_~manager~0.offset_65, ~manager~0.base=v_~manager~0.base_65, #memory_int=|v_#memory_int_147|, ~manager_back~0=v_~manager_back~0_123, ~manager_size~0=v_~manager_size~0_46, ~update~0=v_~update~0_61} OutVars{~manager~0.offset=v_~manager~0.offset_65, thread4Thread1of1ForFork3_#t~mem32=|v_thread4Thread1of1ForFork3_#t~mem32_1|, ~manager~0.base=v_~manager~0.base_65, #memory_int=|v_#memory_int_147|, ~manager_back~0=v_~manager_back~0_122, ~manager_size~0=v_~manager_size~0_46, thread4Thread1of1ForFork3_#t~post33=|v_thread4Thread1of1ForFork3_#t~post33_1|, thread4Thread1of1ForFork3_assume_abort_if_not_#in~cond=|v_thread4Thread1of1ForFork3_assume_abort_if_not_#in~cond_1|, thread4Thread1of1ForFork3_assume_abort_if_not_~cond=v_thread4Thread1of1ForFork3_assume_abort_if_not_~cond_1, ~update~0=v_~update~0_61} AuxVars[] AssignedVars[thread4Thread1of1ForFork3_#t~mem32, ~manager_back~0, thread4Thread1of1ForFork3_#t~post33, thread4Thread1of1ForFork3_assume_abort_if_not_#in~cond, thread4Thread1of1ForFork3_assume_abort_if_not_~cond][284], [Black: 300#(and (= ~safe~0 1) (= ULTIMATE.start_assume_abort_if_not_~cond 0) (= |ULTIMATE.start_assume_abort_if_not_#in~cond| 0)), 75#L81true, 139#L105true, 289#true, 292#true, 187#L117true, 176#L135true, Black: 298#(and (= ~safe~0 1) (= |ULTIMATE.start_assume_abort_if_not_#in~cond| 0)), 81#L179-4true, 305#true, Black: 294#(= ~safe~0 1)]) [2021-11-07 07:45:58,911 INFO L384 tUnfolder$Statistics]: this new event has 205 ancestors and is cut-off event [2021-11-07 07:45:58,911 INFO L387 tUnfolder$Statistics]: existing Event has 201 ancestors and is cut-off event [2021-11-07 07:45:58,912 INFO L387 tUnfolder$Statistics]: existing Event has 197 ancestors and is cut-off event [2021-11-07 07:45:58,912 INFO L387 tUnfolder$Statistics]: existing Event has 197 ancestors and is cut-off event [2021-11-07 07:45:58,915 INFO L382 tUnfolder$Statistics]: inserting event number 5 for the transition-marking pair ([1216] L131-->L135: Formula: (and (= v_~manager_back~0_122 (+ v_~manager_back~0_123 1)) (= |v_thread4Thread1of1ForFork3_assume_abort_if_not_#in~cond_1| v_thread4Thread1of1ForFork3_assume_abort_if_not_~cond_1) (not (= v_thread4Thread1of1ForFork3_assume_abort_if_not_~cond_1 0)) (not (= (ite (and (<= 0 v_~manager_back~0_123) (< v_~manager_back~0_123 v_~manager_size~0_46)) 1 0) 0)) (= |v_thread4Thread1of1ForFork3_assume_abort_if_not_#in~cond_1| (ite (= (select (select |v_#memory_int_147| v_~manager~0.base_65) (+ v_~manager~0.offset_65 (* v_~manager_back~0_123 4))) v_~update~0_61) 1 0))) InVars {~manager~0.offset=v_~manager~0.offset_65, ~manager~0.base=v_~manager~0.base_65, #memory_int=|v_#memory_int_147|, ~manager_back~0=v_~manager_back~0_123, ~manager_size~0=v_~manager_size~0_46, ~update~0=v_~update~0_61} OutVars{~manager~0.offset=v_~manager~0.offset_65, thread4Thread1of1ForFork3_#t~mem32=|v_thread4Thread1of1ForFork3_#t~mem32_1|, ~manager~0.base=v_~manager~0.base_65, #memory_int=|v_#memory_int_147|, ~manager_back~0=v_~manager_back~0_122, ~manager_size~0=v_~manager_size~0_46, thread4Thread1of1ForFork3_#t~post33=|v_thread4Thread1of1ForFork3_#t~post33_1|, thread4Thread1of1ForFork3_assume_abort_if_not_#in~cond=|v_thread4Thread1of1ForFork3_assume_abort_if_not_#in~cond_1|, thread4Thread1of1ForFork3_assume_abort_if_not_~cond=v_thread4Thread1of1ForFork3_assume_abort_if_not_~cond_1, ~update~0=v_~update~0_61} AuxVars[] AssignedVars[thread4Thread1of1ForFork3_#t~mem32, ~manager_back~0, thread4Thread1of1ForFork3_#t~post33, thread4Thread1of1ForFork3_assume_abort_if_not_#in~cond, thread4Thread1of1ForFork3_assume_abort_if_not_~cond][284], [Black: 300#(and (= ~safe~0 1) (= ULTIMATE.start_assume_abort_if_not_~cond 0) (= |ULTIMATE.start_assume_abort_if_not_#in~cond| 0)), 75#L81true, 139#L105true, 289#true, 247#L123true, 292#true, 176#L135true, Black: 298#(and (= ~safe~0 1) (= |ULTIMATE.start_assume_abort_if_not_#in~cond| 0)), 305#true, 81#L179-4true, Black: 294#(= ~safe~0 1)]) [2021-11-07 07:45:58,915 INFO L384 tUnfolder$Statistics]: this new event has 206 ancestors and is cut-off event [2021-11-07 07:45:58,915 INFO L387 tUnfolder$Statistics]: existing Event has 194 ancestors and is cut-off event [2021-11-07 07:45:58,915 INFO L387 tUnfolder$Statistics]: existing Event has 190 ancestors and is cut-off event [2021-11-07 07:45:58,915 INFO L387 tUnfolder$Statistics]: existing Event has 194 ancestors and is cut-off event [2021-11-07 07:45:58,916 INFO L387 tUnfolder$Statistics]: existing Event has 194 ancestors and is cut-off event [2021-11-07 07:45:58,933 INFO L129 PetriNetUnfolder]: 156/818 cut-off events. [2021-11-07 07:45:58,933 INFO L130 PetriNetUnfolder]: For 30/32 co-relation queries the response was YES. [2021-11-07 07:45:58,939 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1158 conditions, 818 events. 156/818 cut-off events. For 30/32 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 2865 event pairs, 30 based on Foata normal form. 8/734 useless extension candidates. Maximal degree in co-relation 1151. Up to 175 conditions per place. [2021-11-07 07:45:58,948 INFO L132 encePairwiseOnDemand]: 285/298 looper letters, 53 selfloop transitions, 8 changer transitions 37/301 dead transitions. [2021-11-07 07:45:58,949 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 267 places, 301 transitions, 835 flow [2021-11-07 07:45:58,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-07 07:45:58,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-11-07 07:45:58,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 2117 transitions. [2021-11-07 07:45:58,960 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7893363161819538 [2021-11-07 07:45:58,960 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 2117 transitions. [2021-11-07 07:45:58,960 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 2117 transitions. [2021-11-07 07:45:58,962 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-07 07:45:58,962 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 2117 transitions. [2021-11-07 07:45:58,971 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 235.22222222222223) internal successors, (2117), 9 states have internal predecessors, (2117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:45:58,979 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 298.0) internal successors, (2980), 10 states have internal predecessors, (2980), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:45:58,982 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 298.0) internal successors, (2980), 10 states have internal predecessors, (2980), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:45:58,983 INFO L186 Difference]: Start difference. First operand has 261 places, 260 transitions, 557 flow. Second operand 9 states and 2117 transitions. [2021-11-07 07:45:58,983 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 267 places, 301 transitions, 835 flow [2021-11-07 07:45:58,987 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 264 places, 301 transitions, 826 flow, removed 2 selfloop flow, removed 3 redundant places. [2021-11-07 07:45:58,993 INFO L242 Difference]: Finished difference. Result has 266 places, 261 transitions, 584 flow [2021-11-07 07:45:58,994 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=298, PETRI_DIFFERENCE_MINUEND_FLOW=548, PETRI_DIFFERENCE_MINUEND_PLACES=256, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=260, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=252, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=584, PETRI_PLACES=266, PETRI_TRANSITIONS=261} [2021-11-07 07:45:58,994 INFO L334 CegarLoopForPetriNet]: 270 programPoint places, -4 predicate places. [2021-11-07 07:45:58,994 INFO L470 AbstractCegarLoop]: Abstraction has has 266 places, 261 transitions, 584 flow [2021-11-07 07:45:58,996 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 229.83333333333334) internal successors, (1379), 6 states have internal predecessors, (1379), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:45:58,996 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-07 07:45:58,996 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:45:58,996 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-07 07:45:58,997 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-11-07 07:45:58,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:45:58,997 INFO L85 PathProgramCache]: Analyzing trace with hash -1250030770, now seen corresponding path program 1 times [2021-11-07 07:45:58,997 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:45:58,998 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1244273722] [2021-11-07 07:45:58,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:45:58,998 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:45:59,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:45:59,431 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-07 07:45:59,431 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:45:59,432 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1244273722] [2021-11-07 07:45:59,432 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1244273722] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 07:45:59,432 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:45:59,433 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-07 07:45:59,433 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [138627473] [2021-11-07 07:45:59,436 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 07:45:59,436 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:45:59,438 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 07:45:59,444 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 07:45:59,447 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 271 out of 298 [2021-11-07 07:45:59,450 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 266 places, 261 transitions, 584 flow. Second operand has 4 states, 4 states have (on average 273.0) internal successors, (1092), 4 states have internal predecessors, (1092), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:45:59,450 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-07 07:45:59,450 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 271 of 298 [2021-11-07 07:45:59,451 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-07 07:45:59,674 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1216] L131-->L135: Formula: (and (= v_~manager_back~0_122 (+ v_~manager_back~0_123 1)) (= |v_thread4Thread1of1ForFork3_assume_abort_if_not_#in~cond_1| v_thread4Thread1of1ForFork3_assume_abort_if_not_~cond_1) (not (= v_thread4Thread1of1ForFork3_assume_abort_if_not_~cond_1 0)) (not (= (ite (and (<= 0 v_~manager_back~0_123) (< v_~manager_back~0_123 v_~manager_size~0_46)) 1 0) 0)) (= |v_thread4Thread1of1ForFork3_assume_abort_if_not_#in~cond_1| (ite (= (select (select |v_#memory_int_147| v_~manager~0.base_65) (+ v_~manager~0.offset_65 (* v_~manager_back~0_123 4))) v_~update~0_61) 1 0))) InVars {~manager~0.offset=v_~manager~0.offset_65, ~manager~0.base=v_~manager~0.base_65, #memory_int=|v_#memory_int_147|, ~manager_back~0=v_~manager_back~0_123, ~manager_size~0=v_~manager_size~0_46, ~update~0=v_~update~0_61} OutVars{~manager~0.offset=v_~manager~0.offset_65, thread4Thread1of1ForFork3_#t~mem32=|v_thread4Thread1of1ForFork3_#t~mem32_1|, ~manager~0.base=v_~manager~0.base_65, #memory_int=|v_#memory_int_147|, ~manager_back~0=v_~manager_back~0_122, ~manager_size~0=v_~manager_size~0_46, thread4Thread1of1ForFork3_#t~post33=|v_thread4Thread1of1ForFork3_#t~post33_1|, thread4Thread1of1ForFork3_assume_abort_if_not_#in~cond=|v_thread4Thread1of1ForFork3_assume_abort_if_not_#in~cond_1|, thread4Thread1of1ForFork3_assume_abort_if_not_~cond=v_thread4Thread1of1ForFork3_assume_abort_if_not_~cond_1, ~update~0=v_~update~0_61} AuxVars[] AssignedVars[thread4Thread1of1ForFork3_#t~mem32, ~manager_back~0, thread4Thread1of1ForFork3_#t~post33, thread4Thread1of1ForFork3_assume_abort_if_not_#in~cond, thread4Thread1of1ForFork3_assume_abort_if_not_~cond][240], [Black: 310#(<= ~manager_size~0 0), 139#L105true, Black: 314#(and (= ULTIMATE.start_create_fresh_int_array_~i~0 0) (<= ~manager_size~0 |ULTIMATE.start_create_fresh_int_array_#in~size|) (<= ~manager_size~0 ULTIMATE.start_create_fresh_int_array_~size)), 289#true, 322#true, 247#L123true, 162#L57true, 176#L135true, 305#true, 81#L179-4true, Black: 294#(= ~safe~0 1)]) [2021-11-07 07:45:59,674 INFO L384 tUnfolder$Statistics]: this new event has 198 ancestors and is cut-off event [2021-11-07 07:45:59,675 INFO L387 tUnfolder$Statistics]: existing Event has 198 ancestors and is cut-off event [2021-11-07 07:45:59,675 INFO L387 tUnfolder$Statistics]: existing Event has 198 ancestors and is cut-off event [2021-11-07 07:45:59,675 INFO L387 tUnfolder$Statistics]: existing Event has 194 ancestors and is cut-off event [2021-11-07 07:45:59,718 INFO L129 PetriNetUnfolder]: 100/564 cut-off events. [2021-11-07 07:45:59,719 INFO L130 PetriNetUnfolder]: For 58/59 co-relation queries the response was YES. [2021-11-07 07:45:59,724 INFO L84 FinitePrefix]: Finished finitePrefix Result has 774 conditions, 564 events. 100/564 cut-off events. For 58/59 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 1851 event pairs, 31 based on Foata normal form. 12/523 useless extension candidates. Maximal degree in co-relation 767. Up to 82 conditions per place. [2021-11-07 07:45:59,729 INFO L132 encePairwiseOnDemand]: 291/298 looper letters, 4 selfloop transitions, 6 changer transitions 0/261 dead transitions. [2021-11-07 07:45:59,730 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 267 places, 261 transitions, 602 flow [2021-11-07 07:45:59,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 07:45:59,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-11-07 07:45:59,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1095 transitions. [2021-11-07 07:45:59,735 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9186241610738255 [2021-11-07 07:45:59,735 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 1095 transitions. [2021-11-07 07:45:59,736 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 1095 transitions. [2021-11-07 07:45:59,737 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-07 07:45:59,737 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 1095 transitions. [2021-11-07 07:45:59,742 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 273.75) internal successors, (1095), 4 states have internal predecessors, (1095), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:45:59,747 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 298.0) internal successors, (1490), 5 states have internal predecessors, (1490), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:45:59,748 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 298.0) internal successors, (1490), 5 states have internal predecessors, (1490), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:45:59,749 INFO L186 Difference]: Start difference. First operand has 266 places, 261 transitions, 584 flow. Second operand 4 states and 1095 transitions. [2021-11-07 07:45:59,749 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 267 places, 261 transitions, 602 flow [2021-11-07 07:45:59,753 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 262 places, 261 transitions, 588 flow, removed 0 selfloop flow, removed 5 redundant places. [2021-11-07 07:45:59,758 INFO L242 Difference]: Finished difference. Result has 263 places, 261 transitions, 586 flow [2021-11-07 07:45:59,759 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=298, PETRI_DIFFERENCE_MINUEND_FLOW=566, PETRI_DIFFERENCE_MINUEND_PLACES=259, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=260, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=254, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=586, PETRI_PLACES=263, PETRI_TRANSITIONS=261} [2021-11-07 07:45:59,759 INFO L334 CegarLoopForPetriNet]: 270 programPoint places, -7 predicate places. [2021-11-07 07:45:59,760 INFO L470 AbstractCegarLoop]: Abstraction has has 263 places, 261 transitions, 586 flow [2021-11-07 07:45:59,761 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 273.0) internal successors, (1092), 4 states have internal predecessors, (1092), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:45:59,761 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-07 07:45:59,762 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:45:59,762 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-07 07:45:59,762 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-11-07 07:45:59,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:45:59,763 INFO L85 PathProgramCache]: Analyzing trace with hash 817289298, now seen corresponding path program 1 times [2021-11-07 07:45:59,763 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:45:59,764 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [610982288] [2021-11-07 07:45:59,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:45:59,764 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:45:59,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:45:59,968 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-07 07:45:59,968 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:45:59,970 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [610982288] [2021-11-07 07:45:59,971 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [610982288] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 07:45:59,971 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:45:59,971 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-07 07:45:59,971 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [890937688] [2021-11-07 07:45:59,972 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 07:45:59,973 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:45:59,974 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 07:45:59,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 07:45:59,977 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 271 out of 298 [2021-11-07 07:45:59,979 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 263 places, 261 transitions, 586 flow. Second operand has 4 states, 4 states have (on average 273.0) internal successors, (1092), 4 states have internal predecessors, (1092), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:45:59,979 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-07 07:45:59,979 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 271 of 298 [2021-11-07 07:45:59,980 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-07 07:46:00,131 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1216] L131-->L135: Formula: (and (= v_~manager_back~0_122 (+ v_~manager_back~0_123 1)) (= |v_thread4Thread1of1ForFork3_assume_abort_if_not_#in~cond_1| v_thread4Thread1of1ForFork3_assume_abort_if_not_~cond_1) (not (= v_thread4Thread1of1ForFork3_assume_abort_if_not_~cond_1 0)) (not (= (ite (and (<= 0 v_~manager_back~0_123) (< v_~manager_back~0_123 v_~manager_size~0_46)) 1 0) 0)) (= |v_thread4Thread1of1ForFork3_assume_abort_if_not_#in~cond_1| (ite (= (select (select |v_#memory_int_147| v_~manager~0.base_65) (+ v_~manager~0.offset_65 (* v_~manager_back~0_123 4))) v_~update~0_61) 1 0))) InVars {~manager~0.offset=v_~manager~0.offset_65, ~manager~0.base=v_~manager~0.base_65, #memory_int=|v_#memory_int_147|, ~manager_back~0=v_~manager_back~0_123, ~manager_size~0=v_~manager_size~0_46, ~update~0=v_~update~0_61} OutVars{~manager~0.offset=v_~manager~0.offset_65, thread4Thread1of1ForFork3_#t~mem32=|v_thread4Thread1of1ForFork3_#t~mem32_1|, ~manager~0.base=v_~manager~0.base_65, #memory_int=|v_#memory_int_147|, ~manager_back~0=v_~manager_back~0_122, ~manager_size~0=v_~manager_size~0_46, thread4Thread1of1ForFork3_#t~post33=|v_thread4Thread1of1ForFork3_#t~post33_1|, thread4Thread1of1ForFork3_assume_abort_if_not_#in~cond=|v_thread4Thread1of1ForFork3_assume_abort_if_not_#in~cond_1|, thread4Thread1of1ForFork3_assume_abort_if_not_~cond=v_thread4Thread1of1ForFork3_assume_abort_if_not_~cond_1, ~update~0=v_~update~0_61} AuxVars[] AssignedVars[thread4Thread1of1ForFork3_#t~mem32, ~manager_back~0, thread4Thread1of1ForFork3_#t~post33, thread4Thread1of1ForFork3_assume_abort_if_not_#in~cond, thread4Thread1of1ForFork3_assume_abort_if_not_~cond][240], [Black: 310#(<= ~manager_size~0 0), 139#L105true, Black: 314#(and (= ULTIMATE.start_create_fresh_int_array_~i~0 0) (<= ~manager_size~0 |ULTIMATE.start_create_fresh_int_array_#in~size|) (<= ~manager_size~0 ULTIMATE.start_create_fresh_int_array_~size)), 289#true, 322#true, 247#L123true, 162#L57true, Black: 324#(<= ~node1_back~0 ~node1_front~0), 328#true, 176#L135true, 81#L179-4true, Black: 294#(= ~safe~0 1)]) [2021-11-07 07:46:00,131 INFO L384 tUnfolder$Statistics]: this new event has 198 ancestors and is cut-off event [2021-11-07 07:46:00,131 INFO L387 tUnfolder$Statistics]: existing Event has 198 ancestors and is cut-off event [2021-11-07 07:46:00,131 INFO L387 tUnfolder$Statistics]: existing Event has 198 ancestors and is cut-off event [2021-11-07 07:46:00,132 INFO L387 tUnfolder$Statistics]: existing Event has 194 ancestors and is cut-off event [2021-11-07 07:46:00,177 INFO L129 PetriNetUnfolder]: 95/561 cut-off events. [2021-11-07 07:46:00,177 INFO L130 PetriNetUnfolder]: For 76/78 co-relation queries the response was YES. [2021-11-07 07:46:00,182 INFO L84 FinitePrefix]: Finished finitePrefix Result has 798 conditions, 561 events. 95/561 cut-off events. For 76/78 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 1830 event pairs, 34 based on Foata normal form. 8/514 useless extension candidates. Maximal degree in co-relation 790. Up to 81 conditions per place. [2021-11-07 07:46:00,187 INFO L132 encePairwiseOnDemand]: 291/298 looper letters, 4 selfloop transitions, 6 changer transitions 0/261 dead transitions. [2021-11-07 07:46:00,187 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 266 places, 261 transitions, 604 flow [2021-11-07 07:46:00,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 07:46:00,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-11-07 07:46:00,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1095 transitions. [2021-11-07 07:46:00,193 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9186241610738255 [2021-11-07 07:46:00,193 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 1095 transitions. [2021-11-07 07:46:00,193 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 1095 transitions. [2021-11-07 07:46:00,195 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-07 07:46:00,195 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 1095 transitions. [2021-11-07 07:46:00,199 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 273.75) internal successors, (1095), 4 states have internal predecessors, (1095), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:46:00,204 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 298.0) internal successors, (1490), 5 states have internal predecessors, (1490), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:46:00,205 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 298.0) internal successors, (1490), 5 states have internal predecessors, (1490), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:46:00,205 INFO L186 Difference]: Start difference. First operand has 263 places, 261 transitions, 586 flow. Second operand 4 states and 1095 transitions. [2021-11-07 07:46:00,206 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 266 places, 261 transitions, 604 flow [2021-11-07 07:46:00,210 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 264 places, 261 transitions, 594 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-11-07 07:46:00,215 INFO L242 Difference]: Finished difference. Result has 265 places, 261 transitions, 592 flow [2021-11-07 07:46:00,216 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=298, PETRI_DIFFERENCE_MINUEND_FLOW=572, PETRI_DIFFERENCE_MINUEND_PLACES=261, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=260, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=254, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=592, PETRI_PLACES=265, PETRI_TRANSITIONS=261} [2021-11-07 07:46:00,217 INFO L334 CegarLoopForPetriNet]: 270 programPoint places, -5 predicate places. [2021-11-07 07:46:00,217 INFO L470 AbstractCegarLoop]: Abstraction has has 265 places, 261 transitions, 592 flow [2021-11-07 07:46:00,218 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 273.0) internal successors, (1092), 4 states have internal predecessors, (1092), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:46:00,218 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-07 07:46:00,219 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:46:00,219 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-07 07:46:00,219 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-11-07 07:46:00,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:46:00,220 INFO L85 PathProgramCache]: Analyzing trace with hash 1732081246, now seen corresponding path program 1 times [2021-11-07 07:46:00,220 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:46:00,221 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1815793555] [2021-11-07 07:46:00,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:46:00,221 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:46:00,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:46:00,365 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-07 07:46:00,365 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:46:00,366 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1815793555] [2021-11-07 07:46:00,366 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1815793555] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 07:46:00,366 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:46:00,366 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 07:46:00,367 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1706908204] [2021-11-07 07:46:00,368 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 07:46:00,368 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:46:00,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 07:46:00,369 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 07:46:00,371 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 274 out of 298 [2021-11-07 07:46:00,373 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 265 places, 261 transitions, 592 flow. Second operand has 3 states, 3 states have (on average 275.6666666666667) internal successors, (827), 3 states have internal predecessors, (827), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:46:00,373 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-07 07:46:00,373 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 274 of 298 [2021-11-07 07:46:00,374 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-07 07:46:00,492 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1216] L131-->L135: Formula: (and (= v_~manager_back~0_122 (+ v_~manager_back~0_123 1)) (= |v_thread4Thread1of1ForFork3_assume_abort_if_not_#in~cond_1| v_thread4Thread1of1ForFork3_assume_abort_if_not_~cond_1) (not (= v_thread4Thread1of1ForFork3_assume_abort_if_not_~cond_1 0)) (not (= (ite (and (<= 0 v_~manager_back~0_123) (< v_~manager_back~0_123 v_~manager_size~0_46)) 1 0) 0)) (= |v_thread4Thread1of1ForFork3_assume_abort_if_not_#in~cond_1| (ite (= (select (select |v_#memory_int_147| v_~manager~0.base_65) (+ v_~manager~0.offset_65 (* v_~manager_back~0_123 4))) v_~update~0_61) 1 0))) InVars {~manager~0.offset=v_~manager~0.offset_65, ~manager~0.base=v_~manager~0.base_65, #memory_int=|v_#memory_int_147|, ~manager_back~0=v_~manager_back~0_123, ~manager_size~0=v_~manager_size~0_46, ~update~0=v_~update~0_61} OutVars{~manager~0.offset=v_~manager~0.offset_65, thread4Thread1of1ForFork3_#t~mem32=|v_thread4Thread1of1ForFork3_#t~mem32_1|, ~manager~0.base=v_~manager~0.base_65, #memory_int=|v_#memory_int_147|, ~manager_back~0=v_~manager_back~0_122, ~manager_size~0=v_~manager_size~0_46, thread4Thread1of1ForFork3_#t~post33=|v_thread4Thread1of1ForFork3_#t~post33_1|, thread4Thread1of1ForFork3_assume_abort_if_not_#in~cond=|v_thread4Thread1of1ForFork3_assume_abort_if_not_#in~cond_1|, thread4Thread1of1ForFork3_assume_abort_if_not_~cond=v_thread4Thread1of1ForFork3_assume_abort_if_not_~cond_1, ~update~0=v_~update~0_61} AuxVars[] AssignedVars[thread4Thread1of1ForFork3_#t~mem32, ~manager_back~0, thread4Thread1of1ForFork3_#t~post33, thread4Thread1of1ForFork3_assume_abort_if_not_#in~cond, thread4Thread1of1ForFork3_assume_abort_if_not_~cond][241], [Black: 310#(<= ~manager_size~0 0), 139#L105true, Black: 314#(and (= ULTIMATE.start_create_fresh_int_array_~i~0 0) (<= ~manager_size~0 |ULTIMATE.start_create_fresh_int_array_#in~size|) (<= ~manager_size~0 ULTIMATE.start_create_fresh_int_array_~size)), 289#true, 247#L123true, 162#L57true, Black: 324#(<= ~node1_back~0 ~node1_front~0), 328#true, Black: 330#(<= ~node2_back~0 ~node2_front~0), 81#L179-4true, Black: 294#(= ~safe~0 1), 334#true, 176#L135true]) [2021-11-07 07:46:00,492 INFO L384 tUnfolder$Statistics]: this new event has 198 ancestors and is cut-off event [2021-11-07 07:46:00,493 INFO L387 tUnfolder$Statistics]: existing Event has 194 ancestors and is cut-off event [2021-11-07 07:46:00,493 INFO L387 tUnfolder$Statistics]: existing Event has 198 ancestors and is cut-off event [2021-11-07 07:46:00,493 INFO L387 tUnfolder$Statistics]: existing Event has 198 ancestors and is cut-off event [2021-11-07 07:46:00,558 INFO L129 PetriNetUnfolder]: 111/595 cut-off events. [2021-11-07 07:46:00,559 INFO L130 PetriNetUnfolder]: For 96/98 co-relation queries the response was YES. [2021-11-07 07:46:00,564 INFO L84 FinitePrefix]: Finished finitePrefix Result has 880 conditions, 595 events. 111/595 cut-off events. For 96/98 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 2084 event pairs, 43 based on Foata normal form. 5/538 useless extension candidates. Maximal degree in co-relation 871. Up to 92 conditions per place. [2021-11-07 07:46:00,570 INFO L132 encePairwiseOnDemand]: 295/298 looper letters, 5 selfloop transitions, 2 changer transitions 0/261 dead transitions. [2021-11-07 07:46:00,570 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 267 places, 261 transitions, 604 flow [2021-11-07 07:46:00,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 07:46:00,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-11-07 07:46:00,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 830 transitions. [2021-11-07 07:46:00,575 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9284116331096197 [2021-11-07 07:46:00,575 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 830 transitions. [2021-11-07 07:46:00,575 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 830 transitions. [2021-11-07 07:46:00,576 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-07 07:46:00,576 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 830 transitions. [2021-11-07 07:46:00,579 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 276.6666666666667) internal successors, (830), 3 states have internal predecessors, (830), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:46:00,583 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 298.0) internal successors, (1192), 4 states have internal predecessors, (1192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:46:00,584 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 298.0) internal successors, (1192), 4 states have internal predecessors, (1192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:46:00,584 INFO L186 Difference]: Start difference. First operand has 265 places, 261 transitions, 592 flow. Second operand 3 states and 830 transitions. [2021-11-07 07:46:00,584 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 267 places, 261 transitions, 604 flow [2021-11-07 07:46:00,591 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 265 places, 261 transitions, 594 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-11-07 07:46:00,597 INFO L242 Difference]: Finished difference. Result has 266 places, 261 transitions, 590 flow [2021-11-07 07:46:00,598 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=298, PETRI_DIFFERENCE_MINUEND_FLOW=578, PETRI_DIFFERENCE_MINUEND_PLACES=263, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=260, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=258, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=590, PETRI_PLACES=266, PETRI_TRANSITIONS=261} [2021-11-07 07:46:00,598 INFO L334 CegarLoopForPetriNet]: 270 programPoint places, -4 predicate places. [2021-11-07 07:46:00,598 INFO L470 AbstractCegarLoop]: Abstraction has has 266 places, 261 transitions, 590 flow [2021-11-07 07:46:00,599 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 275.6666666666667) internal successors, (827), 3 states have internal predecessors, (827), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:46:00,599 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-07 07:46:00,600 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:46:00,600 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-07 07:46:00,601 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-11-07 07:46:00,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:46:00,602 INFO L85 PathProgramCache]: Analyzing trace with hash 1440501456, now seen corresponding path program 1 times [2021-11-07 07:46:00,602 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:46:00,602 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1284844768] [2021-11-07 07:46:00,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:46:00,603 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:46:00,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:46:00,798 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-07 07:46:00,798 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:46:00,799 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1284844768] [2021-11-07 07:46:00,799 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1284844768] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 07:46:00,799 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:46:00,799 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-07 07:46:00,800 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1615870834] [2021-11-07 07:46:00,800 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-07 07:46:00,801 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:46:00,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-07 07:46:00,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-11-07 07:46:00,811 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 228 out of 298 [2021-11-07 07:46:00,814 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 266 places, 261 transitions, 590 flow. Second operand has 6 states, 6 states have (on average 234.5) internal successors, (1407), 6 states have internal predecessors, (1407), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:46:00,814 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-07 07:46:00,815 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 228 of 298 [2021-11-07 07:46:00,815 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-07 07:46:01,233 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1216] L131-->L135: Formula: (and (= v_~manager_back~0_122 (+ v_~manager_back~0_123 1)) (= |v_thread4Thread1of1ForFork3_assume_abort_if_not_#in~cond_1| v_thread4Thread1of1ForFork3_assume_abort_if_not_~cond_1) (not (= v_thread4Thread1of1ForFork3_assume_abort_if_not_~cond_1 0)) (not (= (ite (and (<= 0 v_~manager_back~0_123) (< v_~manager_back~0_123 v_~manager_size~0_46)) 1 0) 0)) (= |v_thread4Thread1of1ForFork3_assume_abort_if_not_#in~cond_1| (ite (= (select (select |v_#memory_int_147| v_~manager~0.base_65) (+ v_~manager~0.offset_65 (* v_~manager_back~0_123 4))) v_~update~0_61) 1 0))) InVars {~manager~0.offset=v_~manager~0.offset_65, ~manager~0.base=v_~manager~0.base_65, #memory_int=|v_#memory_int_147|, ~manager_back~0=v_~manager_back~0_123, ~manager_size~0=v_~manager_size~0_46, ~update~0=v_~update~0_61} OutVars{~manager~0.offset=v_~manager~0.offset_65, thread4Thread1of1ForFork3_#t~mem32=|v_thread4Thread1of1ForFork3_#t~mem32_1|, ~manager~0.base=v_~manager~0.base_65, #memory_int=|v_#memory_int_147|, ~manager_back~0=v_~manager_back~0_122, ~manager_size~0=v_~manager_size~0_46, thread4Thread1of1ForFork3_#t~post33=|v_thread4Thread1of1ForFork3_#t~post33_1|, thread4Thread1of1ForFork3_assume_abort_if_not_#in~cond=|v_thread4Thread1of1ForFork3_assume_abort_if_not_#in~cond_1|, thread4Thread1of1ForFork3_assume_abort_if_not_~cond=v_thread4Thread1of1ForFork3_assume_abort_if_not_~cond_1, ~update~0=v_~update~0_61} AuxVars[] AssignedVars[thread4Thread1of1ForFork3_#t~mem32, ~manager_back~0, thread4Thread1of1ForFork3_#t~post33, thread4Thread1of1ForFork3_assume_abort_if_not_#in~cond, thread4Thread1of1ForFork3_assume_abort_if_not_~cond][269], [Black: 310#(<= ~manager_size~0 0), Black: 314#(and (= ULTIMATE.start_create_fresh_int_array_~i~0 0) (<= ~manager_size~0 |ULTIMATE.start_create_fresh_int_array_#in~size|) (<= ~manager_size~0 ULTIMATE.start_create_fresh_int_array_~size)), 139#L105true, 289#true, 247#L123true, 162#L57true, Black: 324#(<= ~node1_back~0 ~node1_front~0), 339#true, Black: 330#(<= ~node2_back~0 ~node2_front~0), 81#L179-4true, Black: 294#(= ~safe~0 1), Black: 336#(<= ~client_back~0 ~client_front~0), 334#true, 176#L135true]) [2021-11-07 07:46:01,234 INFO L384 tUnfolder$Statistics]: this new event has 205 ancestors and is cut-off event [2021-11-07 07:46:01,234 INFO L387 tUnfolder$Statistics]: existing Event has 201 ancestors and is cut-off event [2021-11-07 07:46:01,234 INFO L387 tUnfolder$Statistics]: existing Event has 205 ancestors and is cut-off event [2021-11-07 07:46:01,234 INFO L387 tUnfolder$Statistics]: existing Event has 205 ancestors and is cut-off event [2021-11-07 07:46:01,298 INFO L129 PetriNetUnfolder]: 126/786 cut-off events. [2021-11-07 07:46:01,298 INFO L130 PetriNetUnfolder]: For 140/150 co-relation queries the response was YES. [2021-11-07 07:46:01,305 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1220 conditions, 786 events. 126/786 cut-off events. For 140/150 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 3016 event pairs, 46 based on Foata normal form. 2/712 useless extension candidates. Maximal degree in co-relation 1210. Up to 105 conditions per place. [2021-11-07 07:46:01,312 INFO L132 encePairwiseOnDemand]: 288/298 looper letters, 50 selfloop transitions, 8 changer transitions 25/290 dead transitions. [2021-11-07 07:46:01,312 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 274 places, 290 transitions, 814 flow [2021-11-07 07:46:01,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-07 07:46:01,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-11-07 07:46:01,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 2134 transitions. [2021-11-07 07:46:01,322 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7956748695003728 [2021-11-07 07:46:01,322 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 2134 transitions. [2021-11-07 07:46:01,323 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 2134 transitions. [2021-11-07 07:46:01,325 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-07 07:46:01,325 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 2134 transitions. [2021-11-07 07:46:01,334 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 237.11111111111111) internal successors, (2134), 9 states have internal predecessors, (2134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:46:01,343 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 298.0) internal successors, (2980), 10 states have internal predecessors, (2980), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:46:01,345 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 298.0) internal successors, (2980), 10 states have internal predecessors, (2980), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:46:01,346 INFO L186 Difference]: Start difference. First operand has 266 places, 261 transitions, 590 flow. Second operand 9 states and 2134 transitions. [2021-11-07 07:46:01,346 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 274 places, 290 transitions, 814 flow [2021-11-07 07:46:01,359 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 273 places, 290 transitions, 812 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-11-07 07:46:01,366 INFO L242 Difference]: Finished difference. Result has 275 places, 262 transitions, 616 flow [2021-11-07 07:46:01,367 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=298, PETRI_DIFFERENCE_MINUEND_FLOW=588, PETRI_DIFFERENCE_MINUEND_PLACES=265, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=261, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=253, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=616, PETRI_PLACES=275, PETRI_TRANSITIONS=262} [2021-11-07 07:46:01,368 INFO L334 CegarLoopForPetriNet]: 270 programPoint places, 5 predicate places. [2021-11-07 07:46:01,368 INFO L470 AbstractCegarLoop]: Abstraction has has 275 places, 262 transitions, 616 flow [2021-11-07 07:46:01,370 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 234.5) internal successors, (1407), 6 states have internal predecessors, (1407), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:46:01,371 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-07 07:46:01,371 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:46:01,372 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-07 07:46:01,372 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-11-07 07:46:01,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:46:01,373 INFO L85 PathProgramCache]: Analyzing trace with hash -1744515656, now seen corresponding path program 1 times [2021-11-07 07:46:01,373 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:46:01,373 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2130810670] [2021-11-07 07:46:01,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:46:01,374 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:46:01,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:46:01,549 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-07 07:46:01,550 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:46:01,550 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2130810670] [2021-11-07 07:46:01,550 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2130810670] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 07:46:01,550 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:46:01,551 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-07 07:46:01,551 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [970621774] [2021-11-07 07:46:01,552 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-07 07:46:01,552 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:46:01,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-07 07:46:01,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-11-07 07:46:01,557 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 228 out of 298 [2021-11-07 07:46:01,559 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 275 places, 262 transitions, 616 flow. Second operand has 6 states, 6 states have (on average 235.16666666666666) internal successors, (1411), 6 states have internal predecessors, (1411), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:46:01,559 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-07 07:46:01,560 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 228 of 298 [2021-11-07 07:46:01,560 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-07 07:46:01,820 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1216] L131-->L135: Formula: (and (= v_~manager_back~0_122 (+ v_~manager_back~0_123 1)) (= |v_thread4Thread1of1ForFork3_assume_abort_if_not_#in~cond_1| v_thread4Thread1of1ForFork3_assume_abort_if_not_~cond_1) (not (= v_thread4Thread1of1ForFork3_assume_abort_if_not_~cond_1 0)) (not (= (ite (and (<= 0 v_~manager_back~0_123) (< v_~manager_back~0_123 v_~manager_size~0_46)) 1 0) 0)) (= |v_thread4Thread1of1ForFork3_assume_abort_if_not_#in~cond_1| (ite (= (select (select |v_#memory_int_147| v_~manager~0.base_65) (+ v_~manager~0.offset_65 (* v_~manager_back~0_123 4))) v_~update~0_61) 1 0))) InVars {~manager~0.offset=v_~manager~0.offset_65, ~manager~0.base=v_~manager~0.base_65, #memory_int=|v_#memory_int_147|, ~manager_back~0=v_~manager_back~0_123, ~manager_size~0=v_~manager_size~0_46, ~update~0=v_~update~0_61} OutVars{~manager~0.offset=v_~manager~0.offset_65, thread4Thread1of1ForFork3_#t~mem32=|v_thread4Thread1of1ForFork3_#t~mem32_1|, ~manager~0.base=v_~manager~0.base_65, #memory_int=|v_#memory_int_147|, ~manager_back~0=v_~manager_back~0_122, ~manager_size~0=v_~manager_size~0_46, thread4Thread1of1ForFork3_#t~post33=|v_thread4Thread1of1ForFork3_#t~post33_1|, thread4Thread1of1ForFork3_assume_abort_if_not_#in~cond=|v_thread4Thread1of1ForFork3_assume_abort_if_not_#in~cond_1|, thread4Thread1of1ForFork3_assume_abort_if_not_~cond=v_thread4Thread1of1ForFork3_assume_abort_if_not_~cond_1, ~update~0=v_~update~0_61} AuxVars[] AssignedVars[thread4Thread1of1ForFork3_#t~mem32, ~manager_back~0, thread4Thread1of1ForFork3_#t~post33, thread4Thread1of1ForFork3_assume_abort_if_not_#in~cond, thread4Thread1of1ForFork3_assume_abort_if_not_~cond][255], [Black: 310#(<= ~manager_size~0 0), Black: 314#(and (= ULTIMATE.start_create_fresh_int_array_~i~0 0) (<= ~manager_size~0 |ULTIMATE.start_create_fresh_int_array_#in~size|) (<= ~manager_size~0 ULTIMATE.start_create_fresh_int_array_~size)), 139#L105true, 289#true, Black: 344#(<= ~client_size~0 0), Black: 348#(and (= ULTIMATE.start_create_fresh_int_array_~i~0 0) (<= ~client_size~0 |ULTIMATE.start_create_fresh_int_array_#in~size|) (<= ~client_size~0 ULTIMATE.start_create_fresh_int_array_~size)), 247#L123true, 162#L57true, Black: 324#(<= ~node1_back~0 ~node1_front~0), 339#true, Black: 330#(<= ~node2_back~0 ~node2_front~0), 81#L179-4true, Black: 294#(= ~safe~0 1), Black: 336#(<= ~client_back~0 ~client_front~0), 356#true, 176#L135true]) [2021-11-07 07:46:01,820 INFO L384 tUnfolder$Statistics]: this new event has 212 ancestors and is cut-off event [2021-11-07 07:46:01,821 INFO L387 tUnfolder$Statistics]: existing Event has 212 ancestors and is cut-off event [2021-11-07 07:46:01,821 INFO L387 tUnfolder$Statistics]: existing Event has 208 ancestors and is cut-off event [2021-11-07 07:46:01,821 INFO L387 tUnfolder$Statistics]: existing Event has 212 ancestors and is cut-off event [2021-11-07 07:46:01,883 INFO L129 PetriNetUnfolder]: 113/717 cut-off events. [2021-11-07 07:46:01,884 INFO L130 PetriNetUnfolder]: For 157/168 co-relation queries the response was YES. [2021-11-07 07:46:01,890 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1130 conditions, 717 events. 113/717 cut-off events. For 157/168 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 2605 event pairs, 44 based on Foata normal form. 2/650 useless extension candidates. Maximal degree in co-relation 1118. Up to 94 conditions per place. [2021-11-07 07:46:01,897 INFO L132 encePairwiseOnDemand]: 288/298 looper letters, 51 selfloop transitions, 8 changer transitions 13/279 dead transitions. [2021-11-07 07:46:01,897 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 281 places, 279 transitions, 794 flow [2021-11-07 07:46:01,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-07 07:46:01,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-11-07 07:46:01,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 2122 transitions. [2021-11-07 07:46:01,907 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7912005965697241 [2021-11-07 07:46:01,907 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 2122 transitions. [2021-11-07 07:46:01,907 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 2122 transitions. [2021-11-07 07:46:01,909 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-07 07:46:01,910 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 2122 transitions. [2021-11-07 07:46:01,918 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 235.77777777777777) internal successors, (2122), 9 states have internal predecessors, (2122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:46:01,926 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 298.0) internal successors, (2980), 10 states have internal predecessors, (2980), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:46:01,928 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 298.0) internal successors, (2980), 10 states have internal predecessors, (2980), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:46:01,929 INFO L186 Difference]: Start difference. First operand has 275 places, 262 transitions, 616 flow. Second operand 9 states and 2122 transitions. [2021-11-07 07:46:01,929 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 281 places, 279 transitions, 794 flow [2021-11-07 07:46:01,933 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 275 places, 279 transitions, 776 flow, removed 1 selfloop flow, removed 6 redundant places. [2021-11-07 07:46:01,940 INFO L242 Difference]: Finished difference. Result has 277 places, 263 transitions, 626 flow [2021-11-07 07:46:01,941 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=298, PETRI_DIFFERENCE_MINUEND_FLOW=598, PETRI_DIFFERENCE_MINUEND_PLACES=267, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=262, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=254, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=626, PETRI_PLACES=277, PETRI_TRANSITIONS=263} [2021-11-07 07:46:01,941 INFO L334 CegarLoopForPetriNet]: 270 programPoint places, 7 predicate places. [2021-11-07 07:46:01,942 INFO L470 AbstractCegarLoop]: Abstraction has has 277 places, 263 transitions, 626 flow [2021-11-07 07:46:01,943 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 235.16666666666666) internal successors, (1411), 6 states have internal predecessors, (1411), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:46:01,943 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-07 07:46:01,944 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:46:01,944 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-07 07:46:01,944 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-11-07 07:46:01,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:46:01,945 INFO L85 PathProgramCache]: Analyzing trace with hash 1777819900, now seen corresponding path program 1 times [2021-11-07 07:46:01,945 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:46:01,946 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [707206521] [2021-11-07 07:46:01,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:46:01,946 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:46:01,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:46:02,108 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-07 07:46:02,109 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:46:02,109 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [707206521] [2021-11-07 07:46:02,109 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [707206521] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 07:46:02,110 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:46:02,110 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-07 07:46:02,110 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [621447223] [2021-11-07 07:46:02,111 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-07 07:46:02,111 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:46:02,112 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-07 07:46:02,112 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-11-07 07:46:02,116 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 228 out of 298 [2021-11-07 07:46:02,119 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 277 places, 263 transitions, 626 flow. Second operand has 6 states, 6 states have (on average 235.83333333333334) internal successors, (1415), 6 states have internal predecessors, (1415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:46:02,119 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-07 07:46:02,119 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 228 of 298 [2021-11-07 07:46:02,119 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-07 07:46:02,360 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1216] L131-->L135: Formula: (and (= v_~manager_back~0_122 (+ v_~manager_back~0_123 1)) (= |v_thread4Thread1of1ForFork3_assume_abort_if_not_#in~cond_1| v_thread4Thread1of1ForFork3_assume_abort_if_not_~cond_1) (not (= v_thread4Thread1of1ForFork3_assume_abort_if_not_~cond_1 0)) (not (= (ite (and (<= 0 v_~manager_back~0_123) (< v_~manager_back~0_123 v_~manager_size~0_46)) 1 0) 0)) (= |v_thread4Thread1of1ForFork3_assume_abort_if_not_#in~cond_1| (ite (= (select (select |v_#memory_int_147| v_~manager~0.base_65) (+ v_~manager~0.offset_65 (* v_~manager_back~0_123 4))) v_~update~0_61) 1 0))) InVars {~manager~0.offset=v_~manager~0.offset_65, ~manager~0.base=v_~manager~0.base_65, #memory_int=|v_#memory_int_147|, ~manager_back~0=v_~manager_back~0_123, ~manager_size~0=v_~manager_size~0_46, ~update~0=v_~update~0_61} OutVars{~manager~0.offset=v_~manager~0.offset_65, thread4Thread1of1ForFork3_#t~mem32=|v_thread4Thread1of1ForFork3_#t~mem32_1|, ~manager~0.base=v_~manager~0.base_65, #memory_int=|v_#memory_int_147|, ~manager_back~0=v_~manager_back~0_122, ~manager_size~0=v_~manager_size~0_46, thread4Thread1of1ForFork3_#t~post33=|v_thread4Thread1of1ForFork3_#t~post33_1|, thread4Thread1of1ForFork3_assume_abort_if_not_#in~cond=|v_thread4Thread1of1ForFork3_assume_abort_if_not_#in~cond_1|, thread4Thread1of1ForFork3_assume_abort_if_not_~cond=v_thread4Thread1of1ForFork3_assume_abort_if_not_~cond_1, ~update~0=v_~update~0_61} AuxVars[] AssignedVars[thread4Thread1of1ForFork3_#t~mem32, ~manager_back~0, thread4Thread1of1ForFork3_#t~post33, thread4Thread1of1ForFork3_assume_abort_if_not_#in~cond, thread4Thread1of1ForFork3_assume_abort_if_not_~cond][245], [Black: 310#(<= ~manager_size~0 0), Black: 314#(and (= ULTIMATE.start_create_fresh_int_array_~i~0 0) (<= ~manager_size~0 |ULTIMATE.start_create_fresh_int_array_#in~size|) (<= ~manager_size~0 ULTIMATE.start_create_fresh_int_array_~size)), 139#L105true, 289#true, Black: 348#(and (= ULTIMATE.start_create_fresh_int_array_~i~0 0) (<= ~client_size~0 |ULTIMATE.start_create_fresh_int_array_#in~size|) (<= ~client_size~0 ULTIMATE.start_create_fresh_int_array_~size)), 247#L123true, 162#L57true, Black: 324#(<= ~node1_back~0 ~node1_front~0), Black: 330#(<= ~node2_back~0 ~node2_front~0), 81#L179-4true, Black: 294#(= ~safe~0 1), Black: 336#(<= ~client_back~0 ~client_front~0), Black: 365#(and (= ULTIMATE.start_create_fresh_int_array_~i~0 0) (<= ~node1_size~0 ULTIMATE.start_create_fresh_int_array_~size) (<= ~node1_size~0 |ULTIMATE.start_create_fresh_int_array_#in~size|)), Black: 361#(<= ~node1_size~0 0), 380#(and (<= ~node2_size~0 |ULTIMATE.start_create_fresh_int_array_#in~size|) (<= ~node2_size~0 ULTIMATE.start_create_fresh_int_array_~size)), 356#true, 176#L135true]) [2021-11-07 07:46:02,361 INFO L384 tUnfolder$Statistics]: this new event has 219 ancestors and is cut-off event [2021-11-07 07:46:02,361 INFO L387 tUnfolder$Statistics]: existing Event has 219 ancestors and is cut-off event [2021-11-07 07:46:02,361 INFO L387 tUnfolder$Statistics]: existing Event has 215 ancestors and is cut-off event [2021-11-07 07:46:02,361 INFO L387 tUnfolder$Statistics]: existing Event has 219 ancestors and is cut-off event [2021-11-07 07:46:02,415 INFO L129 PetriNetUnfolder]: 115/702 cut-off events. [2021-11-07 07:46:02,416 INFO L130 PetriNetUnfolder]: For 164/182 co-relation queries the response was YES. [2021-11-07 07:46:02,422 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1126 conditions, 702 events. 115/702 cut-off events. For 164/182 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 2672 event pairs, 44 based on Foata normal form. 2/636 useless extension candidates. Maximal degree in co-relation 1113. Up to 97 conditions per place. [2021-11-07 07:46:02,428 INFO L132 encePairwiseOnDemand]: 290/298 looper letters, 54 selfloop transitions, 6 changer transitions 1/268 dead transitions. [2021-11-07 07:46:02,429 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 281 places, 268 transitions, 758 flow [2021-11-07 07:46:02,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-07 07:46:02,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-11-07 07:46:02,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1654 transitions. [2021-11-07 07:46:02,436 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7929050814956855 [2021-11-07 07:46:02,437 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1654 transitions. [2021-11-07 07:46:02,437 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1654 transitions. [2021-11-07 07:46:02,438 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-07 07:46:02,439 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1654 transitions. [2021-11-07 07:46:02,447 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 236.28571428571428) internal successors, (1654), 7 states have internal predecessors, (1654), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:46:02,466 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 298.0) internal successors, (2384), 8 states have internal predecessors, (2384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:46:02,478 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 298.0) internal successors, (2384), 8 states have internal predecessors, (2384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:46:02,478 INFO L186 Difference]: Start difference. First operand has 277 places, 263 transitions, 626 flow. Second operand 7 states and 1654 transitions. [2021-11-07 07:46:02,479 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 281 places, 268 transitions, 758 flow [2021-11-07 07:46:02,483 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 275 places, 268 transitions, 740 flow, removed 1 selfloop flow, removed 6 redundant places. [2021-11-07 07:46:02,489 INFO L242 Difference]: Finished difference. Result has 277 places, 264 transitions, 630 flow [2021-11-07 07:46:02,491 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=298, PETRI_DIFFERENCE_MINUEND_FLOW=608, PETRI_DIFFERENCE_MINUEND_PLACES=269, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=263, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=257, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=630, PETRI_PLACES=277, PETRI_TRANSITIONS=264} [2021-11-07 07:46:02,492 INFO L334 CegarLoopForPetriNet]: 270 programPoint places, 7 predicate places. [2021-11-07 07:46:02,492 INFO L470 AbstractCegarLoop]: Abstraction has has 277 places, 264 transitions, 630 flow [2021-11-07 07:46:02,493 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 235.83333333333334) internal successors, (1415), 6 states have internal predecessors, (1415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:46:02,493 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-07 07:46:02,494 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:46:02,494 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-07 07:46:02,495 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-11-07 07:46:02,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:46:02,496 INFO L85 PathProgramCache]: Analyzing trace with hash -460144729, now seen corresponding path program 1 times [2021-11-07 07:46:02,497 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:46:02,497 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [443781827] [2021-11-07 07:46:02,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:46:02,498 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:46:02,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:46:02,792 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-07 07:46:02,793 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:46:02,793 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [443781827] [2021-11-07 07:46:02,793 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [443781827] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 07:46:02,794 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:46:02,794 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 07:46:02,794 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1296171163] [2021-11-07 07:46:02,795 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 07:46:02,795 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:46:02,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 07:46:02,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 07:46:02,798 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 270 out of 298 [2021-11-07 07:46:02,800 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 277 places, 264 transitions, 630 flow. Second operand has 3 states, 3 states have (on average 272.3333333333333) internal successors, (817), 3 states have internal predecessors, (817), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:46:02,800 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-07 07:46:02,800 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 270 of 298 [2021-11-07 07:46:02,800 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-07 07:46:02,967 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1217] L135-->L141: Formula: (let ((.cse1 (not |v_thread4_#t~short35_44|))) (and (or (and |v_thread4_#t~short35_44| (let ((.cse0 (= |v_thread4_#t~mem34_28| v_~ok~0_67))) (or (and |v_thread4_#t~short35_43| .cse0) (and (not |v_thread4_#t~short35_43|) (not .cse0)))) (= (select (select |v_#memory_int_143| v_~client~0.base_23) (+ v_~client~0.offset_23 (* v_~client_front~0_33 4))) |v_thread4_#t~mem34_28|)) (and (= |v_thread4_#t~mem34_28| |v_thread4Thread1of1ForFork3_#t~mem34_1|) .cse1 (= |v_thread4_#t~short35_43| |v_thread4_#t~short35_44|))) (= |v_thread4Thread1of1ForFork3_assume_abort_if_not_#in~cond_3| v_thread4Thread1of1ForFork3_assume_abort_if_not_~cond_3) (not (= v_thread4Thread1of1ForFork3_assume_abort_if_not_~cond_3 0)) (let ((.cse2 (= 0 (mod v_~safe~0_91 256)))) (or (and |v_thread4_#t~short35_44| (not .cse2)) (and .cse2 .cse1))) (= (+ v_~client_front~0_33 1) v_~client_front~0_32) (= v_~safe~0_90 (ite (= (ite |v_thread4_#t~short35_43| 1 0) 0) 0 1)) (= (ite (and (<= 0 v_~client_front~0_33) (< v_~client_back~0_44 v_~client_size~0_22) (< v_~client_front~0_33 v_~client_back~0_44)) 1 0) |v_thread4Thread1of1ForFork3_assume_abort_if_not_#in~cond_3|))) InVars {~client~0.offset=v_~client~0.offset_23, ~client_back~0=v_~client_back~0_44, ~client_front~0=v_~client_front~0_33, ~ok~0=v_~ok~0_67, ~safe~0=v_~safe~0_91, #memory_int=|v_#memory_int_143|, thread4Thread1of1ForFork3_#t~mem34=|v_thread4Thread1of1ForFork3_#t~mem34_1|, ~client_size~0=v_~client_size~0_22, ~client~0.base=v_~client~0.base_23} OutVars{~client~0.offset=v_~client~0.offset_23, ~client_back~0=v_~client_back~0_44, ~ok~0=v_~ok~0_67, thread4Thread1of1ForFork3_#t~short35=|v_thread4Thread1of1ForFork3_#t~short35_1|, thread4Thread1of1ForFork3_#t~post36=|v_thread4Thread1of1ForFork3_#t~post36_1|, ~client_front~0=v_~client_front~0_32, ~safe~0=v_~safe~0_90, #memory_int=|v_#memory_int_143|, thread4Thread1of1ForFork3_#t~mem34=|v_thread4Thread1of1ForFork3_#t~mem34_2|, ~client_size~0=v_~client_size~0_22, ~client~0.base=v_~client~0.base_23, thread4Thread1of1ForFork3_assume_abort_if_not_#in~cond=|v_thread4Thread1of1ForFork3_assume_abort_if_not_#in~cond_3|, thread4Thread1of1ForFork3_assume_abort_if_not_~cond=v_thread4Thread1of1ForFork3_assume_abort_if_not_~cond_3} AuxVars[|v_thread4_#t~mem34_28|, |v_thread4_#t~short35_44|, |v_thread4_#t~short35_43|] AssignedVars[~client_front~0, ~safe~0, thread4Thread1of1ForFork3_#t~short35, thread4Thread1of1ForFork3_#t~mem34, thread4Thread1of1ForFork3_#t~post36, thread4Thread1of1ForFork3_assume_abort_if_not_#in~cond, thread4Thread1of1ForFork3_assume_abort_if_not_~cond][247], [Black: 310#(<= ~manager_size~0 0), Black: 314#(and (= ULTIMATE.start_create_fresh_int_array_~i~0 0) (<= ~manager_size~0 |ULTIMATE.start_create_fresh_int_array_#in~size|) (<= ~manager_size~0 ULTIMATE.start_create_fresh_int_array_~size)), Black: 382#(and (= ULTIMATE.start_create_fresh_int_array_~i~0 0) (<= ~node2_size~0 |ULTIMATE.start_create_fresh_int_array_#in~size|) (<= ~node2_size~0 ULTIMATE.start_create_fresh_int_array_~size)), 289#true, Black: 384#(and (= ULTIMATE.start_create_fresh_int_array_~i~0 0) (<= ~node2_size~0 0) (<= ~node2_size~0 |ULTIMATE.start_create_fresh_int_array_#in~size|) (<= ~node2_size~0 ULTIMATE.start_create_fresh_int_array_~size)), Black: 348#(and (= ULTIMATE.start_create_fresh_int_array_~i~0 0) (<= ~client_size~0 |ULTIMATE.start_create_fresh_int_array_#in~size|) (<= ~client_size~0 ULTIMATE.start_create_fresh_int_array_~size)), Black: 324#(<= ~node1_back~0 ~node1_front~0), 187#L117true, 254#L99true, Black: 330#(<= ~node2_back~0 ~node2_front~0), 81#L179-4true, 167#L87true, Black: 294#(= ~safe~0 1), Black: 336#(<= ~client_back~0 ~client_front~0), Black: 365#(and (= ULTIMATE.start_create_fresh_int_array_~i~0 0) (<= ~node1_size~0 ULTIMATE.start_create_fresh_int_array_~size) (<= ~node1_size~0 |ULTIMATE.start_create_fresh_int_array_#in~size|)), 380#(and (<= ~node2_size~0 |ULTIMATE.start_create_fresh_int_array_#in~size|) (<= ~node2_size~0 ULTIMATE.start_create_fresh_int_array_~size)), 7#L141true, 388#true]) [2021-11-07 07:46:02,968 INFO L384 tUnfolder$Statistics]: this new event has 231 ancestors and is cut-off event [2021-11-07 07:46:02,968 INFO L387 tUnfolder$Statistics]: existing Event has 223 ancestors and is cut-off event [2021-11-07 07:46:02,968 INFO L387 tUnfolder$Statistics]: existing Event has 219 ancestors and is cut-off event [2021-11-07 07:46:02,968 INFO L387 tUnfolder$Statistics]: existing Event has 227 ancestors and is cut-off event [2021-11-07 07:46:02,971 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1185] L53-->L57: Formula: (let ((.cse0 (not |v_thread1_#t~short5_42|))) (and (= |v_thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond_1| v_thread1Thread1of1ForFork2_assume_abort_if_not_~cond_1) (= |v_thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond_1| (ite (and (<= 0 v_~manager_front~0_81) (< v_~manager_front~0_81 v_~manager_size~0_44) (< v_~manager_front~0_81 v_~manager_back~0_116)) 1 0)) (let ((.cse1 (= (mod v_~safe~0_61 256) 0))) (or (and .cse0 .cse1) (and |v_thread1_#t~short5_42| (not .cse1)))) (= v_~manager_front~0_80 (+ v_~manager_front~0_81 1)) (not (= v_thread1Thread1of1ForFork2_assume_abort_if_not_~cond_1 0)) (= v_~safe~0_60 (ite (= (ite |v_thread1_#t~short5_41| 1 0) 0) 0 1)) (or (and (= |v_thread1_#t~mem4_26| |v_thread1Thread1of1ForFork2_#t~mem4_1|) (= |v_thread1_#t~short5_42| |v_thread1_#t~short5_41|) .cse0) (and (let ((.cse2 (= |v_thread1_#t~mem4_26| v_~update~0_49))) (or (and (not |v_thread1_#t~short5_41|) (not .cse2)) (and .cse2 |v_thread1_#t~short5_41|))) (= (select (select |v_#memory_int_119| v_~manager~0.base_55) (+ (* v_~manager_front~0_81 4) v_~manager~0.offset_55)) |v_thread1_#t~mem4_26|) |v_thread1_#t~short5_42|)))) InVars {~manager_front~0=v_~manager_front~0_81, ~manager~0.offset=v_~manager~0.offset_55, ~manager~0.base=v_~manager~0.base_55, thread1Thread1of1ForFork2_#t~mem4=|v_thread1Thread1of1ForFork2_#t~mem4_1|, ~safe~0=v_~safe~0_61, #memory_int=|v_#memory_int_119|, ~manager_back~0=v_~manager_back~0_116, ~manager_size~0=v_~manager_size~0_44, ~update~0=v_~update~0_49} OutVars{thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond=|v_thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond_1|, thread1Thread1of1ForFork2_assume_abort_if_not_~cond=v_thread1Thread1of1ForFork2_assume_abort_if_not_~cond_1, ~manager~0.offset=v_~manager~0.offset_55, ~manager~0.base=v_~manager~0.base_55, thread1Thread1of1ForFork2_#t~short5=|v_thread1Thread1of1ForFork2_#t~short5_1|, ~manager_back~0=v_~manager_back~0_116, thread1Thread1of1ForFork2_#t~post6=|v_thread1Thread1of1ForFork2_#t~post6_1|, ~manager_front~0=v_~manager_front~0_80, thread1Thread1of1ForFork2_#t~mem4=|v_thread1Thread1of1ForFork2_#t~mem4_2|, ~safe~0=v_~safe~0_60, #memory_int=|v_#memory_int_119|, ~manager_size~0=v_~manager_size~0_44, ~update~0=v_~update~0_49} AuxVars[|v_thread1_#t~short5_42|, |v_thread1_#t~mem4_26|, |v_thread1_#t~short5_41|] AssignedVars[~manager_front~0, thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond, thread1Thread1of1ForFork2_assume_abort_if_not_~cond, thread1Thread1of1ForFork2_#t~mem4, ~safe~0, thread1Thread1of1ForFork2_#t~short5, thread1Thread1of1ForFork2_#t~post6][248], [Black: 310#(<= ~manager_size~0 0), Black: 314#(and (= ULTIMATE.start_create_fresh_int_array_~i~0 0) (<= ~manager_size~0 |ULTIMATE.start_create_fresh_int_array_#in~size|) (<= ~manager_size~0 ULTIMATE.start_create_fresh_int_array_~size)), Black: 382#(and (= ULTIMATE.start_create_fresh_int_array_~i~0 0) (<= ~node2_size~0 |ULTIMATE.start_create_fresh_int_array_#in~size|) (<= ~node2_size~0 ULTIMATE.start_create_fresh_int_array_~size)), 289#true, Black: 384#(and (= ULTIMATE.start_create_fresh_int_array_~i~0 0) (<= ~node2_size~0 0) (<= ~node2_size~0 |ULTIMATE.start_create_fresh_int_array_#in~size|) (<= ~node2_size~0 ULTIMATE.start_create_fresh_int_array_~size)), Black: 348#(and (= ULTIMATE.start_create_fresh_int_array_~i~0 0) (<= ~client_size~0 |ULTIMATE.start_create_fresh_int_array_#in~size|) (<= ~client_size~0 ULTIMATE.start_create_fresh_int_array_~size)), 162#L57true, Black: 324#(<= ~node1_back~0 ~node1_front~0), 187#L117true, 254#L99true, Black: 330#(<= ~node2_back~0 ~node2_front~0), 81#L179-4true, Black: 294#(= ~safe~0 1), Black: 336#(<= ~client_back~0 ~client_front~0), Black: 365#(and (= ULTIMATE.start_create_fresh_int_array_~i~0 0) (<= ~node1_size~0 ULTIMATE.start_create_fresh_int_array_~size) (<= ~node1_size~0 |ULTIMATE.start_create_fresh_int_array_#in~size|)), 380#(and (<= ~node2_size~0 |ULTIMATE.start_create_fresh_int_array_#in~size|) (<= ~node2_size~0 ULTIMATE.start_create_fresh_int_array_~size)), 176#L135true, 388#true]) [2021-11-07 07:46:02,971 INFO L384 tUnfolder$Statistics]: this new event has 233 ancestors and is cut-off event [2021-11-07 07:46:02,971 INFO L387 tUnfolder$Statistics]: existing Event has 225 ancestors and is cut-off event [2021-11-07 07:46:02,972 INFO L387 tUnfolder$Statistics]: existing Event has 221 ancestors and is cut-off event [2021-11-07 07:46:02,972 INFO L387 tUnfolder$Statistics]: existing Event has 229 ancestors and is cut-off event [2021-11-07 07:46:02,992 INFO L129 PetriNetUnfolder]: 112/563 cut-off events. [2021-11-07 07:46:02,993 INFO L130 PetriNetUnfolder]: For 157/161 co-relation queries the response was YES. [2021-11-07 07:46:02,997 INFO L84 FinitePrefix]: Finished finitePrefix Result has 925 conditions, 563 events. 112/563 cut-off events. For 157/161 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 1501 event pairs, 32 based on Foata normal form. 1/507 useless extension candidates. Maximal degree in co-relation 911. Up to 94 conditions per place. [2021-11-07 07:46:03,002 INFO L132 encePairwiseOnDemand]: 295/298 looper letters, 10 selfloop transitions, 2 changer transitions 0/265 dead transitions. [2021-11-07 07:46:03,002 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 278 places, 265 transitions, 658 flow [2021-11-07 07:46:03,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 07:46:03,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-11-07 07:46:03,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 822 transitions. [2021-11-07 07:46:03,007 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9194630872483222 [2021-11-07 07:46:03,007 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 822 transitions. [2021-11-07 07:46:03,007 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 822 transitions. [2021-11-07 07:46:03,008 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-07 07:46:03,008 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 822 transitions. [2021-11-07 07:46:03,011 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 274.0) internal successors, (822), 3 states have internal predecessors, (822), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:46:03,014 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 298.0) internal successors, (1192), 4 states have internal predecessors, (1192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:46:03,015 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 298.0) internal successors, (1192), 4 states have internal predecessors, (1192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:46:03,015 INFO L186 Difference]: Start difference. First operand has 277 places, 264 transitions, 630 flow. Second operand 3 states and 822 transitions. [2021-11-07 07:46:03,016 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 278 places, 265 transitions, 658 flow [2021-11-07 07:46:03,019 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 273 places, 265 transitions, 646 flow, removed 1 selfloop flow, removed 5 redundant places. [2021-11-07 07:46:03,025 INFO L242 Difference]: Finished difference. Result has 274 places, 265 transitions, 632 flow [2021-11-07 07:46:03,027 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=298, PETRI_DIFFERENCE_MINUEND_FLOW=618, PETRI_DIFFERENCE_MINUEND_PLACES=271, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=264, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=262, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=632, PETRI_PLACES=274, PETRI_TRANSITIONS=265} [2021-11-07 07:46:03,027 INFO L334 CegarLoopForPetriNet]: 270 programPoint places, 4 predicate places. [2021-11-07 07:46:03,027 INFO L470 AbstractCegarLoop]: Abstraction has has 274 places, 265 transitions, 632 flow [2021-11-07 07:46:03,028 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 272.3333333333333) internal successors, (817), 3 states have internal predecessors, (817), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:46:03,028 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-07 07:46:03,028 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:46:03,029 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-07 07:46:03,029 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-11-07 07:46:03,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:46:03,031 INFO L85 PathProgramCache]: Analyzing trace with hash -2110378917, now seen corresponding path program 1 times [2021-11-07 07:46:03,031 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:46:03,033 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [260158368] [2021-11-07 07:46:03,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:46:03,033 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:46:03,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:46:03,415 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-07 07:46:03,415 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:46:03,415 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [260158368] [2021-11-07 07:46:03,416 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [260158368] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 07:46:03,416 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:46:03,416 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-07 07:46:03,417 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [302652562] [2021-11-07 07:46:03,418 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 07:46:03,418 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:46:03,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 07:46:03,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 07:46:03,422 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 270 out of 298 [2021-11-07 07:46:03,424 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 274 places, 265 transitions, 632 flow. Second operand has 4 states, 4 states have (on average 272.0) internal successors, (1088), 4 states have internal predecessors, (1088), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:46:03,425 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-07 07:46:03,425 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 270 of 298 [2021-11-07 07:46:03,425 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-07 07:46:03,774 INFO L129 PetriNetUnfolder]: 244/1049 cut-off events. [2021-11-07 07:46:03,774 INFO L130 PetriNetUnfolder]: For 421/434 co-relation queries the response was YES. [2021-11-07 07:46:03,785 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1892 conditions, 1049 events. 244/1049 cut-off events. For 421/434 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 4965 event pairs, 80 based on Foata normal form. 21/973 useless extension candidates. Maximal degree in co-relation 1878. Up to 184 conditions per place. [2021-11-07 07:46:03,796 INFO L132 encePairwiseOnDemand]: 291/298 looper letters, 9 selfloop transitions, 12 changer transitions 0/274 dead transitions. [2021-11-07 07:46:03,797 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 277 places, 274 transitions, 712 flow [2021-11-07 07:46:03,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 07:46:03,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-11-07 07:46:03,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1102 transitions. [2021-11-07 07:46:03,803 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.924496644295302 [2021-11-07 07:46:03,804 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 1102 transitions. [2021-11-07 07:46:03,804 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 1102 transitions. [2021-11-07 07:46:03,805 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-07 07:46:03,805 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 1102 transitions. [2021-11-07 07:46:03,809 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 275.5) internal successors, (1102), 4 states have internal predecessors, (1102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:46:03,813 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 298.0) internal successors, (1490), 5 states have internal predecessors, (1490), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:46:03,814 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 298.0) internal successors, (1490), 5 states have internal predecessors, (1490), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:46:03,814 INFO L186 Difference]: Start difference. First operand has 274 places, 265 transitions, 632 flow. Second operand 4 states and 1102 transitions. [2021-11-07 07:46:03,814 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 277 places, 274 transitions, 712 flow [2021-11-07 07:46:03,819 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 276 places, 274 transitions, 708 flow, removed 1 selfloop flow, removed 1 redundant places. [2021-11-07 07:46:03,825 INFO L242 Difference]: Finished difference. Result has 278 places, 274 transitions, 728 flow [2021-11-07 07:46:03,825 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=298, PETRI_DIFFERENCE_MINUEND_FLOW=628, PETRI_DIFFERENCE_MINUEND_PLACES=273, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=265, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=256, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=728, PETRI_PLACES=278, PETRI_TRANSITIONS=274} [2021-11-07 07:46:03,826 INFO L334 CegarLoopForPetriNet]: 270 programPoint places, 8 predicate places. [2021-11-07 07:46:03,826 INFO L470 AbstractCegarLoop]: Abstraction has has 278 places, 274 transitions, 728 flow [2021-11-07 07:46:03,827 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 272.0) internal successors, (1088), 4 states have internal predecessors, (1088), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:46:03,827 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-07 07:46:03,827 INFO L254 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:46:03,828 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-07 07:46:03,829 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-11-07 07:46:03,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:46:03,830 INFO L85 PathProgramCache]: Analyzing trace with hash -877967679, now seen corresponding path program 1 times [2021-11-07 07:46:03,830 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:46:03,830 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2050970570] [2021-11-07 07:46:03,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:46:03,831 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:46:03,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:46:04,072 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 5 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-07 07:46:04,073 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:46:04,073 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2050970570] [2021-11-07 07:46:04,073 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2050970570] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:46:04,074 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [524856652] [2021-11-07 07:46:04,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:46:04,074 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 07:46:04,075 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fea33f55-49b0-4a78-8520-0b692bb20e54/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:46:04,078 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fea33f55-49b0-4a78-8520-0b692bb20e54/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 07:46:04,102 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fea33f55-49b0-4a78-8520-0b692bb20e54/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-07 07:46:04,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:46:04,313 INFO L263 TraceCheckSpWp]: Trace formula consists of 653 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-07 07:46:04,344 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 07:46:05,585 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-07 07:46:05,586 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [524856652] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:46:05,586 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-07 07:46:05,587 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 13 [2021-11-07 07:46:05,587 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1149290866] [2021-11-07 07:46:05,588 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-07 07:46:05,588 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:46:05,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-07 07:46:05,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2021-11-07 07:46:05,597 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 218 out of 298 [2021-11-07 07:46:05,600 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 278 places, 274 transitions, 728 flow. Second operand has 13 states, 13 states have (on average 223.69230769230768) internal successors, (2908), 13 states have internal predecessors, (2908), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:46:05,601 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-07 07:46:05,601 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 218 of 298 [2021-11-07 07:46:05,601 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-07 07:46:06,358 INFO L129 PetriNetUnfolder]: 248/1258 cut-off events. [2021-11-07 07:46:06,358 INFO L130 PetriNetUnfolder]: For 909/967 co-relation queries the response was YES. [2021-11-07 07:46:06,370 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2641 conditions, 1258 events. 248/1258 cut-off events. For 909/967 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 5695 event pairs, 81 based on Foata normal form. 9/1166 useless extension candidates. Maximal degree in co-relation 2625. Up to 272 conditions per place. [2021-11-07 07:46:06,383 INFO L132 encePairwiseOnDemand]: 278/298 looper letters, 74 selfloop transitions, 11 changer transitions 45/327 dead transitions. [2021-11-07 07:46:06,383 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 291 places, 327 transitions, 1138 flow [2021-11-07 07:46:06,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-07 07:46:06,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-11-07 07:46:06,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 3167 transitions. [2021-11-07 07:46:06,396 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7591083413231065 [2021-11-07 07:46:06,396 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 3167 transitions. [2021-11-07 07:46:06,396 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 3167 transitions. [2021-11-07 07:46:06,399 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-07 07:46:06,399 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 3167 transitions. [2021-11-07 07:46:06,409 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 226.21428571428572) internal successors, (3167), 14 states have internal predecessors, (3167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:46:06,419 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 298.0) internal successors, (4470), 15 states have internal predecessors, (4470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:46:06,422 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 298.0) internal successors, (4470), 15 states have internal predecessors, (4470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:46:06,422 INFO L186 Difference]: Start difference. First operand has 278 places, 274 transitions, 728 flow. Second operand 14 states and 3167 transitions. [2021-11-07 07:46:06,422 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 291 places, 327 transitions, 1138 flow [2021-11-07 07:46:06,429 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 291 places, 327 transitions, 1112 flow, removed 13 selfloop flow, removed 0 redundant places. [2021-11-07 07:46:06,436 INFO L242 Difference]: Finished difference. Result has 297 places, 277 transitions, 776 flow [2021-11-07 07:46:06,437 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=298, PETRI_DIFFERENCE_MINUEND_FLOW=706, PETRI_DIFFERENCE_MINUEND_PLACES=278, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=274, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=263, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=776, PETRI_PLACES=297, PETRI_TRANSITIONS=277} [2021-11-07 07:46:06,437 INFO L334 CegarLoopForPetriNet]: 270 programPoint places, 27 predicate places. [2021-11-07 07:46:06,438 INFO L470 AbstractCegarLoop]: Abstraction has has 297 places, 277 transitions, 776 flow [2021-11-07 07:46:06,439 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 223.69230769230768) internal successors, (2908), 13 states have internal predecessors, (2908), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:46:06,439 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-07 07:46:06,440 INFO L254 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:46:06,488 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fea33f55-49b0-4a78-8520-0b692bb20e54/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-07 07:46:06,655 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fea33f55-49b0-4a78-8520-0b692bb20e54/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2021-11-07 07:46:06,655 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-11-07 07:46:06,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:46:06,656 INFO L85 PathProgramCache]: Analyzing trace with hash 173158285, now seen corresponding path program 2 times [2021-11-07 07:46:06,656 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:46:06,656 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [968118194] [2021-11-07 07:46:06,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:46:06,657 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:46:06,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:46:06,875 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 8 proven. 9 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-07 07:46:06,875 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:46:06,875 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [968118194] [2021-11-07 07:46:06,875 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [968118194] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:46:06,876 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [210173197] [2021-11-07 07:46:06,876 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-07 07:46:06,876 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 07:46:06,876 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fea33f55-49b0-4a78-8520-0b692bb20e54/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:46:06,877 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fea33f55-49b0-4a78-8520-0b692bb20e54/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 07:46:06,897 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fea33f55-49b0-4a78-8520-0b692bb20e54/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-07 07:46:07,305 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-07 07:46:07,305 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-07 07:46:07,310 INFO L263 TraceCheckSpWp]: Trace formula consists of 663 conjuncts, 12 conjunts are in the unsatisfiable core [2021-11-07 07:46:07,316 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 07:46:08,527 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 8 proven. 9 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-07 07:46:08,527 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [210173197] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:46:08,527 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-07 07:46:08,527 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 19 [2021-11-07 07:46:08,527 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [902982530] [2021-11-07 07:46:08,528 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2021-11-07 07:46:08,528 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:46:08,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-11-07 07:46:08,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=273, Unknown=0, NotChecked=0, Total=342 [2021-11-07 07:46:08,539 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 218 out of 298 [2021-11-07 07:46:08,544 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 297 places, 277 transitions, 776 flow. Second operand has 19 states, 19 states have (on average 222.42105263157896) internal successors, (4226), 19 states have internal predecessors, (4226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:46:08,544 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-07 07:46:08,544 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 218 of 298 [2021-11-07 07:46:08,544 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-07 07:46:09,557 INFO L129 PetriNetUnfolder]: 252/1294 cut-off events. [2021-11-07 07:46:09,557 INFO L130 PetriNetUnfolder]: For 784/839 co-relation queries the response was YES. [2021-11-07 07:46:09,568 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2660 conditions, 1294 events. 252/1294 cut-off events. For 784/839 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 5849 event pairs, 82 based on Foata normal form. 15/1204 useless extension candidates. Maximal degree in co-relation 2637. Up to 272 conditions per place. [2021-11-07 07:46:09,579 INFO L132 encePairwiseOnDemand]: 270/298 looper letters, 76 selfloop transitions, 14 changer transitions 51/338 dead transitions. [2021-11-07 07:46:09,580 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 313 places, 338 transitions, 1276 flow [2021-11-07 07:46:09,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-11-07 07:46:09,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2021-11-07 07:46:09,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 4704 transitions. [2021-11-07 07:46:09,596 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7516778523489933 [2021-11-07 07:46:09,597 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 4704 transitions. [2021-11-07 07:46:09,597 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 4704 transitions. [2021-11-07 07:46:09,600 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-07 07:46:09,600 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 4704 transitions. [2021-11-07 07:46:09,614 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 224.0) internal successors, (4704), 21 states have internal predecessors, (4704), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:46:09,629 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 298.0) internal successors, (6556), 22 states have internal predecessors, (6556), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:46:09,632 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 298.0) internal successors, (6556), 22 states have internal predecessors, (6556), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:46:09,632 INFO L186 Difference]: Start difference. First operand has 297 places, 277 transitions, 776 flow. Second operand 21 states and 4704 transitions. [2021-11-07 07:46:09,633 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 313 places, 338 transitions, 1276 flow [2021-11-07 07:46:09,639 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 304 places, 338 transitions, 1198 flow, removed 28 selfloop flow, removed 9 redundant places. [2021-11-07 07:46:09,646 INFO L242 Difference]: Finished difference. Result has 314 places, 280 transitions, 844 flow [2021-11-07 07:46:09,647 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=298, PETRI_DIFFERENCE_MINUEND_FLOW=732, PETRI_DIFFERENCE_MINUEND_PLACES=284, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=277, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=263, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=844, PETRI_PLACES=314, PETRI_TRANSITIONS=280} [2021-11-07 07:46:09,647 INFO L334 CegarLoopForPetriNet]: 270 programPoint places, 44 predicate places. [2021-11-07 07:46:09,648 INFO L470 AbstractCegarLoop]: Abstraction has has 314 places, 280 transitions, 844 flow [2021-11-07 07:46:09,649 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 222.42105263157896) internal successors, (4226), 19 states have internal predecessors, (4226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:46:09,650 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-07 07:46:09,650 INFO L254 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:46:09,690 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fea33f55-49b0-4a78-8520-0b692bb20e54/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-07 07:46:09,864 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fea33f55-49b0-4a78-8520-0b692bb20e54/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 07:46:09,865 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-11-07 07:46:09,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:46:09,865 INFO L85 PathProgramCache]: Analyzing trace with hash 450275227, now seen corresponding path program 3 times [2021-11-07 07:46:09,865 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:46:09,866 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [491283204] [2021-11-07 07:46:09,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:46:09,866 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:46:10,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:46:10,261 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2021-11-07 07:46:10,261 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:46:10,262 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [491283204] [2021-11-07 07:46:10,262 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [491283204] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 07:46:10,262 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:46:10,263 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-07 07:46:10,263 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [109166298] [2021-11-07 07:46:10,264 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 07:46:10,264 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:46:10,265 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 07:46:10,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 07:46:10,267 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 274 out of 298 [2021-11-07 07:46:10,269 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 314 places, 280 transitions, 844 flow. Second operand has 4 states, 4 states have (on average 275.75) internal successors, (1103), 4 states have internal predecessors, (1103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:46:10,270 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-07 07:46:10,270 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 274 of 298 [2021-11-07 07:46:10,270 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-07 07:46:11,207 INFO L129 PetriNetUnfolder]: 632/2295 cut-off events. [2021-11-07 07:46:11,207 INFO L130 PetriNetUnfolder]: For 1700/1861 co-relation queries the response was YES. [2021-11-07 07:46:11,239 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4894 conditions, 2295 events. 632/2295 cut-off events. For 1700/1861 co-relation queries the response was YES. Maximal size of possible extension queue 80. Compared 15350 event pairs, 232 based on Foata normal form. 52/2084 useless extension candidates. Maximal degree in co-relation 4864. Up to 450 conditions per place. [2021-11-07 07:46:11,265 INFO L132 encePairwiseOnDemand]: 295/298 looper letters, 5 selfloop transitions, 5 changer transitions 0/283 dead transitions. [2021-11-07 07:46:11,265 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 309 places, 283 transitions, 878 flow [2021-11-07 07:46:11,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 07:46:11,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-11-07 07:46:11,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1106 transitions. [2021-11-07 07:46:11,271 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9278523489932886 [2021-11-07 07:46:11,271 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 1106 transitions. [2021-11-07 07:46:11,271 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 1106 transitions. [2021-11-07 07:46:11,273 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-07 07:46:11,273 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 1106 transitions. [2021-11-07 07:46:11,277 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 276.5) internal successors, (1106), 4 states have internal predecessors, (1106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:46:11,280 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 298.0) internal successors, (1490), 5 states have internal predecessors, (1490), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:46:11,281 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 298.0) internal successors, (1490), 5 states have internal predecessors, (1490), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:46:11,282 INFO L186 Difference]: Start difference. First operand has 314 places, 280 transitions, 844 flow. Second operand 4 states and 1106 transitions. [2021-11-07 07:46:11,282 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 309 places, 283 transitions, 878 flow [2021-11-07 07:46:11,293 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 293 places, 283 transitions, 792 flow, removed 31 selfloop flow, removed 16 redundant places. [2021-11-07 07:46:11,300 INFO L242 Difference]: Finished difference. Result has 295 places, 283 transitions, 796 flow [2021-11-07 07:46:11,301 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=298, PETRI_DIFFERENCE_MINUEND_FLOW=758, PETRI_DIFFERENCE_MINUEND_PLACES=290, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=280, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=276, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=796, PETRI_PLACES=295, PETRI_TRANSITIONS=283} [2021-11-07 07:46:11,301 INFO L334 CegarLoopForPetriNet]: 270 programPoint places, 25 predicate places. [2021-11-07 07:46:11,302 INFO L470 AbstractCegarLoop]: Abstraction has has 295 places, 283 transitions, 796 flow [2021-11-07 07:46:11,302 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 275.75) internal successors, (1103), 4 states have internal predecessors, (1103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:46:11,303 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-07 07:46:11,304 INFO L254 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:46:11,304 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-11-07 07:46:11,304 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-11-07 07:46:11,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:46:11,305 INFO L85 PathProgramCache]: Analyzing trace with hash 1883710817, now seen corresponding path program 1 times [2021-11-07 07:46:11,305 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:46:11,306 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1116982273] [2021-11-07 07:46:11,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:46:11,306 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:46:11,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:46:11,793 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2021-11-07 07:46:11,793 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:46:11,794 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1116982273] [2021-11-07 07:46:11,794 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1116982273] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:46:11,794 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1512765120] [2021-11-07 07:46:11,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:46:11,795 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 07:46:11,795 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fea33f55-49b0-4a78-8520-0b692bb20e54/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:46:11,796 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fea33f55-49b0-4a78-8520-0b692bb20e54/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 07:46:11,821 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fea33f55-49b0-4a78-8520-0b692bb20e54/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-07 07:46:12,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:46:12,304 INFO L263 TraceCheckSpWp]: Trace formula consists of 673 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-07 07:46:12,314 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 07:46:13,702 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2021-11-07 07:46:13,703 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1512765120] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:46:13,703 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-07 07:46:13,703 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 13 [2021-11-07 07:46:13,705 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [96859380] [2021-11-07 07:46:13,706 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-07 07:46:13,707 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:46:13,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-07 07:46:13,708 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2021-11-07 07:46:13,713 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 220 out of 298 [2021-11-07 07:46:13,718 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 295 places, 283 transitions, 796 flow. Second operand has 13 states, 13 states have (on average 225.30769230769232) internal successors, (2929), 13 states have internal predecessors, (2929), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:46:13,718 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-07 07:46:13,719 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 220 of 298 [2021-11-07 07:46:13,719 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-07 07:46:15,178 INFO L129 PetriNetUnfolder]: 778/3179 cut-off events. [2021-11-07 07:46:15,178 INFO L130 PetriNetUnfolder]: For 2328/2536 co-relation queries the response was YES. [2021-11-07 07:46:15,223 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6566 conditions, 3179 events. 778/3179 cut-off events. For 2328/2536 co-relation queries the response was YES. Maximal size of possible extension queue 124. Compared 23611 event pairs, 293 based on Foata normal form. 104/2907 useless extension candidates. Maximal degree in co-relation 6541. Up to 562 conditions per place. [2021-11-07 07:46:15,247 INFO L132 encePairwiseOnDemand]: 279/298 looper letters, 63 selfloop transitions, 16 changer transitions 30/321 dead transitions. [2021-11-07 07:46:15,247 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 308 places, 321 transitions, 1112 flow [2021-11-07 07:46:15,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-07 07:46:15,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-11-07 07:46:15,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 3179 transitions. [2021-11-07 07:46:15,258 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7619846596356663 [2021-11-07 07:46:15,258 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 3179 transitions. [2021-11-07 07:46:15,259 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 3179 transitions. [2021-11-07 07:46:15,261 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-07 07:46:15,261 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 3179 transitions. [2021-11-07 07:46:15,270 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 227.07142857142858) internal successors, (3179), 14 states have internal predecessors, (3179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:46:15,282 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 298.0) internal successors, (4470), 15 states have internal predecessors, (4470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:46:15,284 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 298.0) internal successors, (4470), 15 states have internal predecessors, (4470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:46:15,284 INFO L186 Difference]: Start difference. First operand has 295 places, 283 transitions, 796 flow. Second operand 14 states and 3179 transitions. [2021-11-07 07:46:15,284 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 308 places, 321 transitions, 1112 flow [2021-11-07 07:46:15,294 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 308 places, 321 transitions, 1108 flow, removed 2 selfloop flow, removed 0 redundant places. [2021-11-07 07:46:15,300 INFO L242 Difference]: Finished difference. Result has 314 places, 286 transitions, 876 flow [2021-11-07 07:46:15,301 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=298, PETRI_DIFFERENCE_MINUEND_FLOW=792, PETRI_DIFFERENCE_MINUEND_PLACES=295, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=283, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=267, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=876, PETRI_PLACES=314, PETRI_TRANSITIONS=286} [2021-11-07 07:46:15,302 INFO L334 CegarLoopForPetriNet]: 270 programPoint places, 44 predicate places. [2021-11-07 07:46:15,302 INFO L470 AbstractCegarLoop]: Abstraction has has 314 places, 286 transitions, 876 flow [2021-11-07 07:46:15,303 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 225.30769230769232) internal successors, (2929), 13 states have internal predecessors, (2929), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:46:15,303 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-07 07:46:15,304 INFO L254 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:46:15,354 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fea33f55-49b0-4a78-8520-0b692bb20e54/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-07 07:46:15,518 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fea33f55-49b0-4a78-8520-0b692bb20e54/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2021-11-07 07:46:15,519 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-11-07 07:46:15,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:46:15,520 INFO L85 PathProgramCache]: Analyzing trace with hash -699505021, now seen corresponding path program 2 times [2021-11-07 07:46:15,520 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:46:15,520 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2003527752] [2021-11-07 07:46:15,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:46:15,521 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:46:16,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:46:29,926 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:46:29,926 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:46:29,926 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2003527752] [2021-11-07 07:46:29,927 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2003527752] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:46:29,927 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1668998679] [2021-11-07 07:46:29,927 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-07 07:46:29,928 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 07:46:29,928 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fea33f55-49b0-4a78-8520-0b692bb20e54/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:46:29,937 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fea33f55-49b0-4a78-8520-0b692bb20e54/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 07:46:29,958 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fea33f55-49b0-4a78-8520-0b692bb20e54/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-07 07:46:30,624 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-07 07:46:30,624 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-07 07:46:30,630 INFO L263 TraceCheckSpWp]: Trace formula consists of 683 conjuncts, 154 conjunts are in the unsatisfiable core [2021-11-07 07:46:30,641 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 07:46:50,868 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:46:50,868 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1668998679] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:46:50,868 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-07 07:46:50,869 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [71, 60] total 125 [2021-11-07 07:46:50,869 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [776682724] [2021-11-07 07:46:50,870 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 125 states [2021-11-07 07:46:50,870 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:46:50,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 125 interpolants. [2021-11-07 07:46:50,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=908, Invalid=14592, Unknown=0, NotChecked=0, Total=15500 [2021-11-07 07:46:50,895 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 298 [2021-11-07 07:46:50,907 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 314 places, 286 transitions, 876 flow. Second operand has 125 states, 125 states have (on average 108.648) internal successors, (13581), 125 states have internal predecessors, (13581), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:46:50,908 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-07 07:46:50,908 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 298 [2021-11-07 07:46:50,908 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-07 07:47:44,073 INFO L129 PetriNetUnfolder]: 8938/19803 cut-off events. [2021-11-07 07:47:44,073 INFO L130 PetriNetUnfolder]: For 32771/33081 co-relation queries the response was YES. [2021-11-07 07:47:44,255 INFO L84 FinitePrefix]: Finished finitePrefix Result has 57518 conditions, 19803 events. 8938/19803 cut-off events. For 32771/33081 co-relation queries the response was YES. Maximal size of possible extension queue 541. Compared 175436 event pairs, 1494 based on Foata normal form. 644/19201 useless extension candidates. Maximal degree in co-relation 57486. Up to 6085 conditions per place. [2021-11-07 07:47:44,405 INFO L132 encePairwiseOnDemand]: 213/298 looper letters, 503 selfloop transitions, 346 changer transitions 101/1041 dead transitions. [2021-11-07 07:47:44,405 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 487 places, 1041 transitions, 6021 flow [2021-11-07 07:47:44,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 177 states. [2021-11-07 07:47:44,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 177 states. [2021-11-07 07:47:44,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 19635 transitions. [2021-11-07 07:47:44,453 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.37225571607325675 [2021-11-07 07:47:44,454 INFO L72 ComplementDD]: Start complementDD. Operand 177 states and 19635 transitions. [2021-11-07 07:47:44,454 INFO L73 IsDeterministic]: Start isDeterministic. Operand 177 states and 19635 transitions. [2021-11-07 07:47:44,466 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-07 07:47:44,466 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 177 states and 19635 transitions. [2021-11-07 07:47:44,506 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 178 states, 177 states have (on average 110.9322033898305) internal successors, (19635), 177 states have internal predecessors, (19635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:47:44,578 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 178 states, 178 states have (on average 298.0) internal successors, (53044), 178 states have internal predecessors, (53044), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:47:44,593 INFO L81 ComplementDD]: Finished complementDD. Result has 178 states, 178 states have (on average 298.0) internal successors, (53044), 178 states have internal predecessors, (53044), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:47:44,594 INFO L186 Difference]: Start difference. First operand has 314 places, 286 transitions, 876 flow. Second operand 177 states and 19635 transitions. [2021-11-07 07:47:44,595 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 487 places, 1041 transitions, 6021 flow [2021-11-07 07:47:44,654 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 477 places, 1041 transitions, 5774 flow, removed 85 selfloop flow, removed 10 redundant places. [2021-11-07 07:47:44,674 INFO L242 Difference]: Finished difference. Result has 581 places, 643 transitions, 4100 flow [2021-11-07 07:47:44,675 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=298, PETRI_DIFFERENCE_MINUEND_FLOW=818, PETRI_DIFFERENCE_MINUEND_PLACES=301, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=286, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=46, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=178, PETRI_DIFFERENCE_SUBTRAHEND_STATES=177, PETRI_FLOW=4100, PETRI_PLACES=581, PETRI_TRANSITIONS=643} [2021-11-07 07:47:44,675 INFO L334 CegarLoopForPetriNet]: 270 programPoint places, 311 predicate places. [2021-11-07 07:47:44,676 INFO L470 AbstractCegarLoop]: Abstraction has has 581 places, 643 transitions, 4100 flow [2021-11-07 07:47:44,679 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 125 states, 125 states have (on average 108.648) internal successors, (13581), 125 states have internal predecessors, (13581), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:47:44,679 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-07 07:47:44,680 INFO L254 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:47:44,718 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fea33f55-49b0-4a78-8520-0b692bb20e54/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-07 07:47:44,906 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fea33f55-49b0-4a78-8520-0b692bb20e54/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2021-11-07 07:47:44,908 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-11-07 07:47:44,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:47:44,908 INFO L85 PathProgramCache]: Analyzing trace with hash -245398691, now seen corresponding path program 3 times [2021-11-07 07:47:44,908 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:47:44,908 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [29216280] [2021-11-07 07:47:44,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:47:44,909 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:47:45,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:48:00,742 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:48:00,742 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:48:00,742 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [29216280] [2021-11-07 07:48:00,742 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [29216280] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:48:00,742 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [50011823] [2021-11-07 07:48:00,742 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-07 07:48:00,742 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 07:48:00,742 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fea33f55-49b0-4a78-8520-0b692bb20e54/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:48:00,743 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fea33f55-49b0-4a78-8520-0b692bb20e54/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 07:48:00,744 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fea33f55-49b0-4a78-8520-0b692bb20e54/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-07 07:48:02,191 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-11-07 07:48:02,191 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-07 07:48:02,197 INFO L263 TraceCheckSpWp]: Trace formula consists of 673 conjuncts, 102 conjunts are in the unsatisfiable core [2021-11-07 07:48:02,205 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 07:48:13,909 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2021-11-07 07:48:13,909 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [50011823] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:48:13,909 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-07 07:48:13,909 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [72, 28] total 94 [2021-11-07 07:48:13,909 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1110342086] [2021-11-07 07:48:13,911 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 94 states [2021-11-07 07:48:13,911 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:48:13,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 94 interpolants. [2021-11-07 07:48:13,915 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=526, Invalid=8216, Unknown=0, NotChecked=0, Total=8742 [2021-11-07 07:48:13,926 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 298 [2021-11-07 07:48:13,936 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 581 places, 643 transitions, 4100 flow. Second operand has 94 states, 94 states have (on average 109.36170212765957) internal successors, (10280), 94 states have internal predecessors, (10280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:48:13,936 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-07 07:48:13,937 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 298 [2021-11-07 07:48:13,937 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-07 07:49:09,907 INFO L129 PetriNetUnfolder]: 8974/21007 cut-off events. [2021-11-07 07:49:09,907 INFO L130 PetriNetUnfolder]: For 88032/89472 co-relation queries the response was YES. [2021-11-07 07:49:10,496 INFO L84 FinitePrefix]: Finished finitePrefix Result has 75200 conditions, 21007 events. 8974/21007 cut-off events. For 88032/89472 co-relation queries the response was YES. Maximal size of possible extension queue 559. Compared 194432 event pairs, 1661 based on Foata normal form. 338/19910 useless extension candidates. Maximal degree in co-relation 75067. Up to 11623 conditions per place. [2021-11-07 07:49:10,670 INFO L132 encePairwiseOnDemand]: 213/298 looper letters, 699 selfloop transitions, 317 changer transitions 49/1156 dead transitions. [2021-11-07 07:49:10,670 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 763 places, 1156 transitions, 8731 flow [2021-11-07 07:49:10,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 204 states. [2021-11-07 07:49:10,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 204 states. [2021-11-07 07:49:10,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 22398 transitions. [2021-11-07 07:49:10,707 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.36843663639952623 [2021-11-07 07:49:10,708 INFO L72 ComplementDD]: Start complementDD. Operand 204 states and 22398 transitions. [2021-11-07 07:49:10,708 INFO L73 IsDeterministic]: Start isDeterministic. Operand 204 states and 22398 transitions. [2021-11-07 07:49:10,716 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-07 07:49:10,716 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 204 states and 22398 transitions. [2021-11-07 07:49:10,763 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 205 states, 204 states have (on average 109.79411764705883) internal successors, (22398), 204 states have internal predecessors, (22398), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:49:10,823 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 205 states, 205 states have (on average 298.0) internal successors, (61090), 205 states have internal predecessors, (61090), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:49:10,835 INFO L81 ComplementDD]: Finished complementDD. Result has 205 states, 205 states have (on average 298.0) internal successors, (61090), 205 states have internal predecessors, (61090), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:49:10,835 INFO L186 Difference]: Start difference. First operand has 581 places, 643 transitions, 4100 flow. Second operand 204 states and 22398 transitions. [2021-11-07 07:49:10,836 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 763 places, 1156 transitions, 8731 flow [2021-11-07 07:49:11,849 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 731 places, 1156 transitions, 7992 flow, removed 350 selfloop flow, removed 32 redundant places. [2021-11-07 07:49:11,870 INFO L242 Difference]: Finished difference. Result has 755 places, 813 transitions, 5597 flow [2021-11-07 07:49:11,871 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=298, PETRI_DIFFERENCE_MINUEND_FLOW=3506, PETRI_DIFFERENCE_MINUEND_PLACES=528, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=643, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=176, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=446, PETRI_DIFFERENCE_SUBTRAHEND_STATES=204, PETRI_FLOW=5597, PETRI_PLACES=755, PETRI_TRANSITIONS=813} [2021-11-07 07:49:11,872 INFO L334 CegarLoopForPetriNet]: 270 programPoint places, 485 predicate places. [2021-11-07 07:49:11,872 INFO L470 AbstractCegarLoop]: Abstraction has has 755 places, 813 transitions, 5597 flow [2021-11-07 07:49:11,874 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 94 states, 94 states have (on average 109.36170212765957) internal successors, (10280), 94 states have internal predecessors, (10280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:49:11,875 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-07 07:49:11,875 INFO L254 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:49:11,914 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fea33f55-49b0-4a78-8520-0b692bb20e54/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-11-07 07:49:12,102 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fea33f55-49b0-4a78-8520-0b692bb20e54/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2021-11-07 07:49:12,103 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-11-07 07:49:12,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:49:12,104 INFO L85 PathProgramCache]: Analyzing trace with hash 945158419, now seen corresponding path program 4 times [2021-11-07 07:49:12,104 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:49:12,104 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [566221209] [2021-11-07 07:49:12,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:49:12,104 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:49:12,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:49:24,449 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:49:24,449 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:49:24,451 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [566221209] [2021-11-07 07:49:24,451 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [566221209] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:49:24,451 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [575480899] [2021-11-07 07:49:24,451 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-07 07:49:24,451 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 07:49:24,452 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fea33f55-49b0-4a78-8520-0b692bb20e54/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:49:24,452 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fea33f55-49b0-4a78-8520-0b692bb20e54/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 07:49:24,466 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fea33f55-49b0-4a78-8520-0b692bb20e54/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-11-07 07:49:26,198 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-07 07:49:26,198 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-07 07:49:26,204 INFO L263 TraceCheckSpWp]: Trace formula consists of 683 conjuncts, 166 conjunts are in the unsatisfiable core [2021-11-07 07:49:26,212 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 07:49:37,741 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2021-11-07 07:49:40,149 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2021-11-07 07:49:40,837 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2021-11-07 07:49:41,417 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2021-11-07 07:49:41,957 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2021-11-07 07:49:46,980 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-07 07:49:46,981 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [575480899] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:49:46,981 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-07 07:49:46,981 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [71, 64] total 130 [2021-11-07 07:49:46,981 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [547749243] [2021-11-07 07:49:46,983 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 130 states [2021-11-07 07:49:46,983 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:49:46,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 130 interpolants. [2021-11-07 07:49:46,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1114, Invalid=15656, Unknown=0, NotChecked=0, Total=16770 [2021-11-07 07:49:47,000 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 91 out of 298 [2021-11-07 07:49:47,009 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 755 places, 813 transitions, 5597 flow. Second operand has 130 states, 130 states have (on average 93.66153846153846) internal successors, (12176), 130 states have internal predecessors, (12176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:49:47,010 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-07 07:49:47,010 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 91 of 298 [2021-11-07 07:49:47,010 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-07 07:50:52,963 INFO L129 PetriNetUnfolder]: 21576/48775 cut-off events. [2021-11-07 07:50:52,963 INFO L130 PetriNetUnfolder]: For 270837/274995 co-relation queries the response was YES. [2021-11-07 07:50:54,540 INFO L84 FinitePrefix]: Finished finitePrefix Result has 185894 conditions, 48775 events. 21576/48775 cut-off events. For 270837/274995 co-relation queries the response was YES. Maximal size of possible extension queue 1302. Compared 514184 event pairs, 2035 based on Foata normal form. 1085/46732 useless extension candidates. Maximal degree in co-relation 185756. Up to 16716 conditions per place. [2021-11-07 07:50:54,884 INFO L132 encePairwiseOnDemand]: 209/298 looper letters, 767 selfloop transitions, 723 changer transitions 133/1707 dead transitions. [2021-11-07 07:50:54,884 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 962 places, 1707 transitions, 15579 flow [2021-11-07 07:50:54,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 210 states. [2021-11-07 07:50:54,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 210 states. [2021-11-07 07:50:55,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 20068 transitions. [2021-11-07 07:50:55,065 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.32067753275806965 [2021-11-07 07:50:55,065 INFO L72 ComplementDD]: Start complementDD. Operand 210 states and 20068 transitions. [2021-11-07 07:50:55,066 INFO L73 IsDeterministic]: Start isDeterministic. Operand 210 states and 20068 transitions. [2021-11-07 07:50:55,074 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-07 07:50:55,074 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 210 states and 20068 transitions. [2021-11-07 07:50:55,108 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 211 states, 210 states have (on average 95.56190476190476) internal successors, (20068), 210 states have internal predecessors, (20068), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:50:55,179 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 211 states, 211 states have (on average 298.0) internal successors, (62878), 211 states have internal predecessors, (62878), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:50:55,191 INFO L81 ComplementDD]: Finished complementDD. Result has 211 states, 211 states have (on average 298.0) internal successors, (62878), 211 states have internal predecessors, (62878), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:50:55,191 INFO L186 Difference]: Start difference. First operand has 755 places, 813 transitions, 5597 flow. Second operand 210 states and 20068 transitions. [2021-11-07 07:50:55,191 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 962 places, 1707 transitions, 15579 flow [2021-11-07 07:50:59,313 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 837 places, 1707 transitions, 14789 flow, removed 256 selfloop flow, removed 125 redundant places. [2021-11-07 07:50:59,421 INFO L242 Difference]: Finished difference. Result has 893 places, 1272 transitions, 12217 flow [2021-11-07 07:50:59,422 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=298, PETRI_DIFFERENCE_MINUEND_FLOW=4855, PETRI_DIFFERENCE_MINUEND_PLACES=628, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=813, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=334, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=427, PETRI_DIFFERENCE_SUBTRAHEND_STATES=210, PETRI_FLOW=12217, PETRI_PLACES=893, PETRI_TRANSITIONS=1272} [2021-11-07 07:50:59,422 INFO L334 CegarLoopForPetriNet]: 270 programPoint places, 623 predicate places. [2021-11-07 07:50:59,422 INFO L470 AbstractCegarLoop]: Abstraction has has 893 places, 1272 transitions, 12217 flow [2021-11-07 07:50:59,424 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 130 states, 130 states have (on average 93.66153846153846) internal successors, (12176), 130 states have internal predecessors, (12176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:50:59,424 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-07 07:50:59,424 INFO L254 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:50:59,450 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fea33f55-49b0-4a78-8520-0b692bb20e54/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-11-07 07:50:59,624 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fea33f55-49b0-4a78-8520-0b692bb20e54/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2021-11-07 07:50:59,625 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-11-07 07:50:59,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:50:59,625 INFO L85 PathProgramCache]: Analyzing trace with hash 267076753, now seen corresponding path program 5 times [2021-11-07 07:50:59,626 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:50:59,626 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [63249143] [2021-11-07 07:50:59,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:50:59,626 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:51:00,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:51:11,038 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:51:11,038 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:51:11,038 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [63249143] [2021-11-07 07:51:11,038 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [63249143] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:51:11,038 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [321084105] [2021-11-07 07:51:11,038 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-11-07 07:51:11,039 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 07:51:11,039 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fea33f55-49b0-4a78-8520-0b692bb20e54/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:51:11,039 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fea33f55-49b0-4a78-8520-0b692bb20e54/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 07:51:11,077 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fea33f55-49b0-4a78-8520-0b692bb20e54/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-11-07 07:51:13,566 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2021-11-07 07:51:13,566 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-07 07:51:13,574 INFO L263 TraceCheckSpWp]: Trace formula consists of 683 conjuncts, 219 conjunts are in the unsatisfiable core [2021-11-07 07:51:13,585 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 07:51:13,700 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 [2021-11-07 07:51:13,779 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-11-07 07:51:13,780 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 [2021-11-07 07:51:13,879 INFO L354 Elim1Store]: treesize reduction 44, result has 30.2 percent of original size [2021-11-07 07:51:13,879 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 22 treesize of output 33 [2021-11-07 07:51:14,993 INFO L354 Elim1Store]: treesize reduction 62, result has 31.1 percent of original size [2021-11-07 07:51:14,994 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 27 treesize of output 45 [2021-11-07 07:51:17,163 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2021-11-07 07:51:20,330 INFO L354 Elim1Store]: treesize reduction 80, result has 31.6 percent of original size [2021-11-07 07:51:20,331 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 9 case distinctions, treesize of input 32 treesize of output 57 [2021-11-07 07:51:21,603 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2021-11-07 07:51:22,758 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2021-11-07 07:51:27,996 INFO L354 Elim1Store]: treesize reduction 98, result has 31.9 percent of original size [2021-11-07 07:51:27,997 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 9 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 11 case distinctions, treesize of input 37 treesize of output 69 [2021-11-07 07:51:29,909 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 37 [2021-11-07 07:51:38,329 INFO L354 Elim1Store]: treesize reduction 72, result has 25.8 percent of original size [2021-11-07 07:51:38,329 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 9 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 12 case distinctions, treesize of input 56 treesize of output 66 [2021-11-07 07:51:39,905 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 32 [2021-11-07 07:51:44,033 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2021-11-07 07:51:44,888 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 20 [2021-11-07 07:51:45,502 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 20 [2021-11-07 07:51:46,102 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16 [2021-11-07 07:51:51,775 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:51:51,775 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [321084105] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:51:51,776 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-07 07:51:51,776 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [71, 81] total 147 [2021-11-07 07:51:51,776 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [30571965] [2021-11-07 07:51:51,777 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 147 states [2021-11-07 07:51:51,777 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:51:51,778 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 147 interpolants. [2021-11-07 07:51:51,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1444, Invalid=20018, Unknown=0, NotChecked=0, Total=21462 [2021-11-07 07:51:51,795 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 90 out of 298 [2021-11-07 07:51:51,806 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 893 places, 1272 transitions, 12217 flow. Second operand has 147 states, 147 states have (on average 92.36054421768708) internal successors, (13577), 147 states have internal predecessors, (13577), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:51:51,806 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-07 07:51:51,806 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 90 of 298 [2021-11-07 07:51:51,806 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand