./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/weaver/chl-word-trans.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f8e1c903 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59173873-2f0e-4e3b-9842-66d4efecb91f/bin/uautomizer-IVEQpCNsaX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59173873-2f0e-4e3b-9842-66d4efecb91f/bin/uautomizer-IVEQpCNsaX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59173873-2f0e-4e3b-9842-66d4efecb91f/bin/uautomizer-IVEQpCNsaX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59173873-2f0e-4e3b-9842-66d4efecb91f/bin/uautomizer-IVEQpCNsaX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/chl-word-trans.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59173873-2f0e-4e3b-9842-66d4efecb91f/bin/uautomizer-IVEQpCNsaX/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59173873-2f0e-4e3b-9842-66d4efecb91f/bin/uautomizer-IVEQpCNsaX --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 73462fb8dbdc39f07edabdd79150cbad579fbba379eb033cd2e89802bbb8b9a6 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-f8e1c90 [2021-11-09 10:36:51,590 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-09 10:36:51,592 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-09 10:36:51,633 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-09 10:36:51,634 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-09 10:36:51,636 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-09 10:36:51,638 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-09 10:36:51,641 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-09 10:36:51,644 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-09 10:36:51,646 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-09 10:36:51,648 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-09 10:36:51,650 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-09 10:36:51,653 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-09 10:36:51,658 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-09 10:36:51,661 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-09 10:36:51,663 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-09 10:36:51,666 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-09 10:36:51,675 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-09 10:36:51,678 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-09 10:36:51,681 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-09 10:36:51,693 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-09 10:36:51,695 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-09 10:36:51,697 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-09 10:36:51,698 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-09 10:36:51,705 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-09 10:36:51,707 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-09 10:36:51,708 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-09 10:36:51,709 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-09 10:36:51,711 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-09 10:36:51,713 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-09 10:36:51,714 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-09 10:36:51,715 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-09 10:36:51,718 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-09 10:36:51,720 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-09 10:36:51,722 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-09 10:36:51,723 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-09 10:36:51,724 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-09 10:36:51,724 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-09 10:36:51,724 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-09 10:36:51,726 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-09 10:36:51,727 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-09 10:36:51,728 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59173873-2f0e-4e3b-9842-66d4efecb91f/bin/uautomizer-IVEQpCNsaX/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-11-09 10:36:51,785 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-09 10:36:51,785 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-09 10:36:51,786 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-09 10:36:51,786 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-09 10:36:51,796 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-09 10:36:51,797 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-09 10:36:51,797 INFO L138 SettingsManager]: * Use SBE=true [2021-11-09 10:36:51,797 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-09 10:36:51,798 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-09 10:36:51,798 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-09 10:36:51,799 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-09 10:36:51,800 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-09 10:36:51,800 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-09 10:36:51,801 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-09 10:36:51,801 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-09 10:36:51,801 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-09 10:36:51,801 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-09 10:36:51,802 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-09 10:36:51,802 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-09 10:36:51,802 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-09 10:36:51,803 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-09 10:36:51,803 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-09 10:36:51,803 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-09 10:36:51,804 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-09 10:36:51,804 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-09 10:36:51,804 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-09 10:36:51,804 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-09 10:36:51,805 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-09 10:36:51,805 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-09 10:36:51,807 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-09 10:36:51,807 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-09 10:36:51,808 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-09 10:36:51,808 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_59173873-2f0e-4e3b-9842-66d4efecb91f/bin/uautomizer-IVEQpCNsaX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59173873-2f0e-4e3b-9842-66d4efecb91f/bin/uautomizer-IVEQpCNsaX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 73462fb8dbdc39f07edabdd79150cbad579fbba379eb033cd2e89802bbb8b9a6 [2021-11-09 10:36:52,176 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-09 10:36:52,209 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-09 10:36:52,213 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-09 10:36:52,214 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-09 10:36:52,225 INFO L275 PluginConnector]: CDTParser initialized [2021-11-09 10:36:52,226 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59173873-2f0e-4e3b-9842-66d4efecb91f/bin/uautomizer-IVEQpCNsaX/../../sv-benchmarks/c/weaver/chl-word-trans.wvr.c [2021-11-09 10:36:52,305 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59173873-2f0e-4e3b-9842-66d4efecb91f/bin/uautomizer-IVEQpCNsaX/data/d54935497/15dbdc29405343b4b0aed1d7f9472622/FLAG576160cf6 [2021-11-09 10:36:52,871 INFO L306 CDTParser]: Found 1 translation units. [2021-11-09 10:36:52,871 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59173873-2f0e-4e3b-9842-66d4efecb91f/sv-benchmarks/c/weaver/chl-word-trans.wvr.c [2021-11-09 10:36:52,881 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59173873-2f0e-4e3b-9842-66d4efecb91f/bin/uautomizer-IVEQpCNsaX/data/d54935497/15dbdc29405343b4b0aed1d7f9472622/FLAG576160cf6 [2021-11-09 10:36:53,182 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59173873-2f0e-4e3b-9842-66d4efecb91f/bin/uautomizer-IVEQpCNsaX/data/d54935497/15dbdc29405343b4b0aed1d7f9472622 [2021-11-09 10:36:53,186 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-09 10:36:53,188 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-09 10:36:53,191 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-09 10:36:53,191 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-09 10:36:53,196 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-09 10:36:53,197 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 10:36:53" (1/1) ... [2021-11-09 10:36:53,199 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2cce7bdc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:36:53, skipping insertion in model container [2021-11-09 10:36:53,199 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 10:36:53" (1/1) ... [2021-11-09 10:36:53,208 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-09 10:36:53,235 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-09 10:36:53,523 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_59173873-2f0e-4e3b-9842-66d4efecb91f/sv-benchmarks/c/weaver/chl-word-trans.wvr.c[3292,3305] [2021-11-09 10:36:53,542 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-09 10:36:53,565 INFO L203 MainTranslator]: Completed pre-run [2021-11-09 10:36:53,604 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_59173873-2f0e-4e3b-9842-66d4efecb91f/sv-benchmarks/c/weaver/chl-word-trans.wvr.c[3292,3305] [2021-11-09 10:36:53,618 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-09 10:36:53,635 INFO L208 MainTranslator]: Completed translation [2021-11-09 10:36:53,635 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:36:53 WrapperNode [2021-11-09 10:36:53,636 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-09 10:36:53,637 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-09 10:36:53,637 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-09 10:36:53,637 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-09 10:36:53,646 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:36:53" (1/1) ... [2021-11-09 10:36:53,658 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:36:53" (1/1) ... [2021-11-09 10:36:53,695 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-09 10:36:53,700 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-09 10:36:53,700 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-09 10:36:53,701 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-09 10:36:53,711 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:36:53" (1/1) ... [2021-11-09 10:36:53,712 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:36:53" (1/1) ... [2021-11-09 10:36:53,728 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:36:53" (1/1) ... [2021-11-09 10:36:53,735 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:36:53" (1/1) ... [2021-11-09 10:36:53,748 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:36:53" (1/1) ... [2021-11-09 10:36:53,771 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:36:53" (1/1) ... [2021-11-09 10:36:53,774 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:36:53" (1/1) ... [2021-11-09 10:36:53,791 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-09 10:36:53,792 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-09 10:36:53,792 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-09 10:36:53,792 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-09 10:36:53,798 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:36:53" (1/1) ... [2021-11-09 10:36:53,810 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-09 10:36:53,825 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59173873-2f0e-4e3b-9842-66d4efecb91f/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 10:36:53,847 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59173873-2f0e-4e3b-9842-66d4efecb91f/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-09 10:36:53,854 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59173873-2f0e-4e3b-9842-66d4efecb91f/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-09 10:36:53,899 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-11-09 10:36:53,900 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-11-09 10:36:53,900 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-11-09 10:36:53,900 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-11-09 10:36:53,900 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-11-09 10:36:53,900 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-11-09 10:36:53,901 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-09 10:36:53,901 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-09 10:36:53,901 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-09 10:36:53,901 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-09 10:36:53,901 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-09 10:36:53,902 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-09 10:36:53,903 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-09 10:36:53,903 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-09 10:36:53,906 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-11-09 10:36:54,850 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-09 10:36:54,851 INFO L299 CfgBuilder]: Removed 30 assume(true) statements. [2021-11-09 10:36:54,854 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 10:36:54 BoogieIcfgContainer [2021-11-09 10:36:54,854 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-09 10:36:54,856 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-09 10:36:54,856 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-09 10:36:54,863 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-09 10:36:54,863 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 10:36:53" (1/3) ... [2021-11-09 10:36:54,864 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@425a9a25 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 10:36:54, skipping insertion in model container [2021-11-09 10:36:54,864 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:36:53" (2/3) ... [2021-11-09 10:36:54,865 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@425a9a25 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 10:36:54, skipping insertion in model container [2021-11-09 10:36:54,865 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 10:36:54" (3/3) ... [2021-11-09 10:36:54,870 INFO L111 eAbstractionObserver]: Analyzing ICFG chl-word-trans.wvr.c [2021-11-09 10:36:54,877 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-11-09 10:36:54,877 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-09 10:36:54,877 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-09 10:36:54,878 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-11-09 10:36:54,953 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~stop~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:54,953 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~stop~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:54,954 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:54,954 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:54,954 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:54,955 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:54,955 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:54,955 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:54,955 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:54,956 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:54,956 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:54,957 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:54,957 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~stop~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:54,957 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~stop~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:54,958 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~stop~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:54,958 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~stop~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:54,958 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:54,958 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:54,959 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:54,959 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:54,960 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:54,960 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:54,960 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:54,961 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:54,961 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:54,962 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:54,962 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:54,962 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:54,962 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:54,963 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:54,963 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:54,963 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:54,964 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:54,964 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:54,965 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:54,965 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:54,965 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:54,965 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:54,966 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:54,966 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:54,966 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:54,966 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:54,966 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:54,967 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:54,967 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:54,967 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:54,967 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:54,968 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:54,968 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:54,968 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:54,968 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:54,968 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:54,969 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:54,969 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:54,970 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:54,970 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:54,970 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:54,970 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:54,970 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:54,971 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:54,971 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:54,972 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:54,972 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:54,972 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:54,972 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:54,973 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:54,974 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:54,974 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:54,974 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:54,974 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:54,974 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:54,975 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:54,975 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:54,975 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:54,976 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:54,976 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:54,976 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:54,977 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:54,977 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:54,977 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:54,977 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:54,978 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:54,978 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:54,978 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:54,978 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:54,979 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:54,980 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~stop~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:54,983 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~stop~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:54,985 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~stop~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:54,985 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~stop~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:54,986 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:54,986 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:54,988 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:54,988 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:54,988 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:54,989 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:54,995 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:54,995 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:54,996 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:54,996 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:54,996 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~stop~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:54,996 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~stop~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:54,997 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~stop~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:54,997 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~stop~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:54,997 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:54,997 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:54,997 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:54,998 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:54,998 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:54,998 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:54,998 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:54,999 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:55,000 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:55,000 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:55,000 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:55,000 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:55,001 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:55,001 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:55,001 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:55,001 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:55,001 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:55,002 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:55,002 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:55,002 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:55,002 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:55,002 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:55,003 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:55,003 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:55,003 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:55,003 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:55,003 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:55,004 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:55,004 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:55,004 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:55,004 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:55,004 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:55,005 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:55,005 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:55,005 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:55,005 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:55,006 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:55,006 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:55,006 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:55,006 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:55,007 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:55,007 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:55,007 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:55,007 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:55,008 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:55,008 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:55,008 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:55,008 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:55,008 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:55,008 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:55,009 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:55,009 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:55,009 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:55,009 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:55,009 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:55,010 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:55,012 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:55,012 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:55,012 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:55,012 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:55,013 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:55,013 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:55,013 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:55,013 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:55,013 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:55,014 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:55,014 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:55,014 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:55,014 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:55,014 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:55,016 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~stop~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:55,016 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~stop~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:55,017 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~stop~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:55,018 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~stop~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:55,018 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:55,018 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:55,019 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:55,020 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:55,020 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:55,020 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:55,020 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:55,021 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:55,021 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:55,021 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:55,021 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~stop~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:55,021 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~stop~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:55,022 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~stop~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:55,022 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~stop~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:55,022 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:55,022 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:55,023 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:55,023 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:55,023 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:55,023 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:55,023 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:55,024 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:55,024 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:55,024 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:55,025 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:55,025 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:55,025 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:55,026 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:55,026 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:55,026 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:55,026 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:55,026 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:55,027 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:55,027 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:55,027 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:55,028 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:55,033 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:55,033 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:55,033 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:55,034 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:55,034 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:55,034 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:55,034 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:55,034 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:55,034 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:55,035 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:55,036 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:55,036 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:55,036 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:55,037 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:55,069 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:55,069 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:55,070 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:55,070 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:55,070 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:55,070 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:55,071 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:55,080 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:55,080 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:55,081 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:55,081 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:55,081 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:55,081 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:55,081 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:55,081 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:55,082 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:55,082 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:55,082 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:55,082 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:55,082 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:55,082 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:55,083 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:55,083 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:55,083 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:55,083 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:55,083 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:55,083 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:55,084 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:55,084 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:55,084 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:55,084 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:55,084 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:55,084 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:55,085 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:55,085 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~stop~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:55,085 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~stop~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:55,089 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:55,089 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:55,089 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:55,089 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:55,089 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:55,090 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:55,090 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:55,090 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:55,090 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:55,090 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:55,090 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~stop~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:55,095 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:55,095 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:55,096 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~stop~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:55,096 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:55,096 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:55,096 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:55,096 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:55,096 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:55,097 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:55,097 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:55,097 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:55,099 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:55,100 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:55,100 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~stop~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:55,100 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:55,100 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:55,100 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:55,100 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:55,101 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:55,101 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:55,101 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:55,101 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 10:36:55,110 INFO L148 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2021-11-09 10:36:55,179 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-09 10:36:55,199 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 [2021-11-09 10:36:55,200 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-11-09 10:36:55,233 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 284 places, 308 transitions, 640 flow [2021-11-09 10:36:55,450 INFO L129 PetriNetUnfolder]: 34/305 cut-off events. [2021-11-09 10:36:55,451 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2021-11-09 10:36:55,464 INFO L84 FinitePrefix]: Finished finitePrefix Result has 318 conditions, 305 events. 34/305 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 502 event pairs, 0 based on Foata normal form. 0/270 useless extension candidates. Maximal degree in co-relation 240. Up to 3 conditions per place. [2021-11-09 10:36:55,464 INFO L82 GeneralOperation]: Start removeDead. Operand has 284 places, 308 transitions, 640 flow [2021-11-09 10:36:55,474 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 271 places, 295 transitions, 608 flow [2021-11-09 10:36:55,546 INFO L129 PetriNetUnfolder]: 34/294 cut-off events. [2021-11-09 10:36:55,547 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2021-11-09 10:36:55,547 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-09 10:36:55,548 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] [2021-11-09 10:36:55,549 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-09 10:36:55,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 10:36:55,555 INFO L85 PathProgramCache]: Analyzing trace with hash -1740365383, now seen corresponding path program 1 times [2021-11-09 10:36:55,583 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 10:36:55,584 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1551427710] [2021-11-09 10:36:55,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 10:36:55,585 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 10:36:55,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 10:36:55,932 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 10:36:55,933 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 10:36:55,933 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1551427710] [2021-11-09 10:36:55,934 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1551427710] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 10:36:55,934 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 10:36:55,934 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-09 10:36:55,936 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1588611502] [2021-11-09 10:36:55,949 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-09 10:36:55,949 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 10:36:55,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-09 10:36:55,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-09 10:36:55,975 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 294 out of 308 [2021-11-09 10:36:55,984 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 271 places, 295 transitions, 608 flow. Second operand has 2 states, 2 states have (on average 296.0) internal successors, (592), 2 states have internal predecessors, (592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:36:55,984 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-09 10:36:55,984 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 294 of 308 [2021-11-09 10:36:55,986 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-09 10:36:56,105 INFO L129 PetriNetUnfolder]: 21/282 cut-off events. [2021-11-09 10:36:56,105 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2021-11-09 10:36:56,112 INFO L84 FinitePrefix]: Finished finitePrefix Result has 296 conditions, 282 events. 21/282 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 498 event pairs, 0 based on Foata normal form. 13/267 useless extension candidates. Maximal degree in co-relation 291. Up to 3 conditions per place. [2021-11-09 10:36:56,116 INFO L132 encePairwiseOnDemand]: 295/308 looper letters, 0 selfloop transitions, 0 changer transitions 7/282 dead transitions. [2021-11-09 10:36:56,117 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 272 places, 282 transitions, 582 flow [2021-11-09 10:36:56,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-09 10:36:56,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2021-11-09 10:36:56,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 601 transitions. [2021-11-09 10:36:56,143 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9756493506493507 [2021-11-09 10:36:56,144 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 601 transitions. [2021-11-09 10:36:56,144 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 601 transitions. [2021-11-09 10:36:56,150 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-09 10:36:56,153 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 601 transitions. [2021-11-09 10:36:56,161 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 300.5) internal successors, (601), 2 states have internal predecessors, (601), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:36:56,175 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 308.0) internal successors, (924), 3 states have internal predecessors, (924), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:36:56,176 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 308.0) internal successors, (924), 3 states have internal predecessors, (924), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:36:56,180 INFO L186 Difference]: Start difference. First operand has 271 places, 295 transitions, 608 flow. Second operand 2 states and 601 transitions. [2021-11-09 10:36:56,181 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 272 places, 282 transitions, 582 flow [2021-11-09 10:36:56,192 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 266 places, 282 transitions, 570 flow, removed 0 selfloop flow, removed 6 redundant places. [2021-11-09 10:36:56,206 INFO L242 Difference]: Finished difference. Result has 266 places, 275 transitions, 556 flow [2021-11-09 10:36:56,209 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=308, PETRI_DIFFERENCE_MINUEND_FLOW=570, PETRI_DIFFERENCE_MINUEND_PLACES=265, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=282, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=282, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=556, PETRI_PLACES=266, PETRI_TRANSITIONS=275} [2021-11-09 10:36:56,210 INFO L334 CegarLoopForPetriNet]: 271 programPoint places, -5 predicate places. [2021-11-09 10:36:56,210 INFO L470 AbstractCegarLoop]: Abstraction has has 266 places, 275 transitions, 556 flow [2021-11-09 10:36:56,211 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 296.0) internal successors, (592), 2 states have internal predecessors, (592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:36:56,211 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-09 10:36:56,212 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] [2021-11-09 10:36:56,212 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-09 10:36:56,213 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-09 10:36:56,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 10:36:56,213 INFO L85 PathProgramCache]: Analyzing trace with hash 230304877, now seen corresponding path program 1 times [2021-11-09 10:36:56,214 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 10:36:56,214 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1525174831] [2021-11-09 10:36:56,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 10:36:56,214 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 10:36:56,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 10:36:56,555 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 10:36:56,557 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 10:36:56,557 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1525174831] [2021-11-09 10:36:56,558 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1525174831] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 10:36:56,559 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 10:36:56,559 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-09 10:36:56,559 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [566777599] [2021-11-09 10:36:56,562 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-09 10:36:56,563 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 10:36:56,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-09 10:36:56,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-09 10:36:56,567 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 289 out of 308 [2021-11-09 10:36:56,569 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 266 places, 275 transitions, 556 flow. Second operand has 3 states, 3 states have (on average 290.0) internal successors, (870), 3 states have internal predecessors, (870), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:36:56,570 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-09 10:36:56,570 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 289 of 308 [2021-11-09 10:36:56,570 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-09 10:36:56,660 INFO L129 PetriNetUnfolder]: 20/286 cut-off events. [2021-11-09 10:36:56,660 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-11-09 10:36:56,662 INFO L84 FinitePrefix]: Finished finitePrefix Result has 298 conditions, 286 events. 20/286 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 495 event pairs, 0 based on Foata normal form. 0/264 useless extension candidates. Maximal degree in co-relation 295. Up to 5 conditions per place. [2021-11-09 10:36:56,665 INFO L132 encePairwiseOnDemand]: 305/308 looper letters, 4 selfloop transitions, 2 changer transitions 0/276 dead transitions. [2021-11-09 10:36:56,665 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 261 places, 276 transitions, 570 flow [2021-11-09 10:36:56,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-09 10:36:56,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-11-09 10:36:56,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 874 transitions. [2021-11-09 10:36:56,669 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9458874458874459 [2021-11-09 10:36:56,670 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 874 transitions. [2021-11-09 10:36:56,670 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 874 transitions. [2021-11-09 10:36:56,671 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-09 10:36:56,671 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 874 transitions. [2021-11-09 10:36:56,675 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 291.3333333333333) internal successors, (874), 3 states have internal predecessors, (874), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:36:56,679 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 308.0) internal successors, (1232), 4 states have internal predecessors, (1232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:36:56,681 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 308.0) internal successors, (1232), 4 states have internal predecessors, (1232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:36:56,681 INFO L186 Difference]: Start difference. First operand has 266 places, 275 transitions, 556 flow. Second operand 3 states and 874 transitions. [2021-11-09 10:36:56,681 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 261 places, 276 transitions, 570 flow [2021-11-09 10:36:56,685 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 261 places, 276 transitions, 570 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-11-09 10:36:56,696 INFO L242 Difference]: Finished difference. Result has 262 places, 275 transitions, 564 flow [2021-11-09 10:36:56,697 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=308, PETRI_DIFFERENCE_MINUEND_FLOW=556, PETRI_DIFFERENCE_MINUEND_PLACES=259, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=275, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=273, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=564, PETRI_PLACES=262, PETRI_TRANSITIONS=275} [2021-11-09 10:36:56,697 INFO L334 CegarLoopForPetriNet]: 271 programPoint places, -9 predicate places. [2021-11-09 10:36:56,698 INFO L470 AbstractCegarLoop]: Abstraction has has 262 places, 275 transitions, 564 flow [2021-11-09 10:36:56,699 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 290.0) internal successors, (870), 3 states have internal predecessors, (870), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:36:56,699 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-09 10:36:56,700 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 10:36:56,700 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-09 10:36:56,700 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-09 10:36:56,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 10:36:56,704 INFO L85 PathProgramCache]: Analyzing trace with hash -631363063, now seen corresponding path program 1 times [2021-11-09 10:36:56,705 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 10:36:56,705 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1504232683] [2021-11-09 10:36:56,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 10:36:56,705 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 10:36:56,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 10:36:56,884 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 10:36:56,884 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 10:36:56,885 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1504232683] [2021-11-09 10:36:56,885 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1504232683] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 10:36:56,885 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 10:36:56,885 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-09 10:36:56,886 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [550342969] [2021-11-09 10:36:56,886 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-09 10:36:56,887 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 10:36:56,887 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-09 10:36:56,888 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-09 10:36:56,890 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 289 out of 308 [2021-11-09 10:36:56,892 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 262 places, 275 transitions, 564 flow. Second operand has 3 states, 3 states have (on average 290.0) internal successors, (870), 3 states have internal predecessors, (870), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:36:56,893 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-09 10:36:56,893 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 289 of 308 [2021-11-09 10:36:56,893 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-09 10:36:56,983 INFO L129 PetriNetUnfolder]: 19/310 cut-off events. [2021-11-09 10:36:56,983 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-11-09 10:36:56,986 INFO L84 FinitePrefix]: Finished finitePrefix Result has 328 conditions, 310 events. 19/310 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 603 event pairs, 0 based on Foata normal form. 0/288 useless extension candidates. Maximal degree in co-relation 323. Up to 5 conditions per place. [2021-11-09 10:36:56,988 INFO L132 encePairwiseOnDemand]: 305/308 looper letters, 4 selfloop transitions, 2 changer transitions 0/276 dead transitions. [2021-11-09 10:36:56,989 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 264 places, 276 transitions, 578 flow [2021-11-09 10:36:56,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-09 10:36:56,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-11-09 10:36:56,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 874 transitions. [2021-11-09 10:36:56,993 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9458874458874459 [2021-11-09 10:36:56,993 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 874 transitions. [2021-11-09 10:36:56,993 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 874 transitions. [2021-11-09 10:36:56,994 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-09 10:36:56,995 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 874 transitions. [2021-11-09 10:36:56,998 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 291.3333333333333) internal successors, (874), 3 states have internal predecessors, (874), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:36:57,002 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 308.0) internal successors, (1232), 4 states have internal predecessors, (1232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:36:57,004 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 308.0) internal successors, (1232), 4 states have internal predecessors, (1232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:36:57,004 INFO L186 Difference]: Start difference. First operand has 262 places, 275 transitions, 564 flow. Second operand 3 states and 874 transitions. [2021-11-09 10:36:57,004 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 264 places, 276 transitions, 578 flow [2021-11-09 10:36:57,008 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 262 places, 276 transitions, 574 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-11-09 10:36:57,014 INFO L242 Difference]: Finished difference. Result has 263 places, 275 transitions, 568 flow [2021-11-09 10:36:57,015 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=308, PETRI_DIFFERENCE_MINUEND_FLOW=560, PETRI_DIFFERENCE_MINUEND_PLACES=260, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=275, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=273, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=568, PETRI_PLACES=263, PETRI_TRANSITIONS=275} [2021-11-09 10:36:57,015 INFO L334 CegarLoopForPetriNet]: 271 programPoint places, -8 predicate places. [2021-11-09 10:36:57,015 INFO L470 AbstractCegarLoop]: Abstraction has has 263 places, 275 transitions, 568 flow [2021-11-09 10:36:57,016 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 290.0) internal successors, (870), 3 states have internal predecessors, (870), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:36:57,017 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-09 10:36:57,017 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 10:36:57,017 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-09 10:36:57,018 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-09 10:36:57,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 10:36:57,019 INFO L85 PathProgramCache]: Analyzing trace with hash -966227713, now seen corresponding path program 1 times [2021-11-09 10:36:57,019 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 10:36:57,020 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1682938163] [2021-11-09 10:36:57,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 10:36:57,020 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 10:36:57,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 10:36:57,217 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 10:36:57,218 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 10:36:57,218 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1682938163] [2021-11-09 10:36:57,218 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1682938163] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 10:36:57,218 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 10:36:57,219 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-09 10:36:57,219 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [674738956] [2021-11-09 10:36:57,220 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-09 10:36:57,220 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 10:36:57,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-09 10:36:57,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-09 10:36:57,233 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 276 out of 308 [2021-11-09 10:36:57,236 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 263 places, 275 transitions, 568 flow. Second operand has 5 states, 5 states have (on average 278.0) internal successors, (1390), 5 states have internal predecessors, (1390), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:36:57,236 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-09 10:36:57,236 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 276 of 308 [2021-11-09 10:36:57,237 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-09 10:36:57,859 INFO L129 PetriNetUnfolder]: 330/1689 cut-off events. [2021-11-09 10:36:57,859 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-11-09 10:36:57,871 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2034 conditions, 1689 events. 330/1689 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 105. Compared 13381 event pairs, 120 based on Foata normal form. 0/1407 useless extension candidates. Maximal degree in co-relation 2028. Up to 130 conditions per place. [2021-11-09 10:36:57,888 INFO L132 encePairwiseOnDemand]: 302/308 looper letters, 32 selfloop transitions, 4 changer transitions 0/293 dead transitions. [2021-11-09 10:36:57,888 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 267 places, 293 transitions, 676 flow [2021-11-09 10:36:57,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-09 10:36:57,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-11-09 10:36:57,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1418 transitions. [2021-11-09 10:36:57,896 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9207792207792208 [2021-11-09 10:36:57,896 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1418 transitions. [2021-11-09 10:36:57,896 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1418 transitions. [2021-11-09 10:36:57,897 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-09 10:36:57,898 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1418 transitions. [2021-11-09 10:36:57,903 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 283.6) internal successors, (1418), 5 states have internal predecessors, (1418), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:36:57,909 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 308.0) internal successors, (1848), 6 states have internal predecessors, (1848), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:36:57,911 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 308.0) internal successors, (1848), 6 states have internal predecessors, (1848), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:36:57,911 INFO L186 Difference]: Start difference. First operand has 263 places, 275 transitions, 568 flow. Second operand 5 states and 1418 transitions. [2021-11-09 10:36:57,911 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 267 places, 293 transitions, 676 flow [2021-11-09 10:36:57,916 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 265 places, 293 transitions, 672 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-11-09 10:36:57,922 INFO L242 Difference]: Finished difference. Result has 267 places, 277 transitions, 589 flow [2021-11-09 10:36:57,923 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=308, PETRI_DIFFERENCE_MINUEND_FLOW=564, PETRI_DIFFERENCE_MINUEND_PLACES=261, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=275, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=271, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=589, PETRI_PLACES=267, PETRI_TRANSITIONS=277} [2021-11-09 10:36:57,923 INFO L334 CegarLoopForPetriNet]: 271 programPoint places, -4 predicate places. [2021-11-09 10:36:57,924 INFO L470 AbstractCegarLoop]: Abstraction has has 267 places, 277 transitions, 589 flow [2021-11-09 10:36:57,925 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 278.0) internal successors, (1390), 5 states have internal predecessors, (1390), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:36:57,926 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-09 10:36:57,926 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] [2021-11-09 10:36:57,926 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-09 10:36:57,926 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-09 10:36:57,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 10:36:57,927 INFO L85 PathProgramCache]: Analyzing trace with hash 1442670359, now seen corresponding path program 2 times [2021-11-09 10:36:57,927 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 10:36:57,928 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [223612365] [2021-11-09 10:36:57,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 10:36:57,929 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 10:36:57,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 10:36:58,061 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 10:36:58,062 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 10:36:58,064 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [223612365] [2021-11-09 10:36:58,064 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [223612365] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 10:36:58,064 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 10:36:58,064 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-09 10:36:58,065 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1912044593] [2021-11-09 10:36:58,066 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-09 10:36:58,066 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 10:36:58,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-09 10:36:58,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-09 10:36:58,071 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 276 out of 308 [2021-11-09 10:36:58,074 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 267 places, 277 transitions, 589 flow. Second operand has 5 states, 5 states have (on average 278.0) internal successors, (1390), 5 states have internal predecessors, (1390), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:36:58,075 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-09 10:36:58,075 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 276 of 308 [2021-11-09 10:36:58,075 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-09 10:36:58,746 INFO L129 PetriNetUnfolder]: 278/2111 cut-off events. [2021-11-09 10:36:58,746 INFO L130 PetriNetUnfolder]: For 148/155 co-relation queries the response was YES. [2021-11-09 10:36:58,763 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2632 conditions, 2111 events. 278/2111 cut-off events. For 148/155 co-relation queries the response was YES. Maximal size of possible extension queue 134. Compared 19397 event pairs, 43 based on Foata normal form. 11/1981 useless extension candidates. Maximal degree in co-relation 2624. Up to 102 conditions per place. [2021-11-09 10:36:58,808 INFO L132 encePairwiseOnDemand]: 298/308 looper letters, 41 selfloop transitions, 13 changer transitions 0/311 dead transitions. [2021-11-09 10:36:58,809 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 273 places, 311 transitions, 799 flow [2021-11-09 10:36:58,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-09 10:36:58,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-11-09 10:36:58,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1990 transitions. [2021-11-09 10:36:58,816 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9230055658627088 [2021-11-09 10:36:58,816 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1990 transitions. [2021-11-09 10:36:58,817 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1990 transitions. [2021-11-09 10:36:58,818 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-09 10:36:58,819 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1990 transitions. [2021-11-09 10:36:58,826 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 284.2857142857143) internal successors, (1990), 7 states have internal predecessors, (1990), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:36:58,833 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 308.0) internal successors, (2464), 8 states have internal predecessors, (2464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:36:58,836 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 308.0) internal successors, (2464), 8 states have internal predecessors, (2464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:36:58,836 INFO L186 Difference]: Start difference. First operand has 267 places, 277 transitions, 589 flow. Second operand 7 states and 1990 transitions. [2021-11-09 10:36:58,837 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 273 places, 311 transitions, 799 flow [2021-11-09 10:36:58,843 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 271 places, 311 transitions, 790 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-11-09 10:36:58,849 INFO L242 Difference]: Finished difference. Result has 275 places, 290 transitions, 697 flow [2021-11-09 10:36:58,850 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=308, PETRI_DIFFERENCE_MINUEND_FLOW=586, PETRI_DIFFERENCE_MINUEND_PLACES=265, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=277, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=271, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=697, PETRI_PLACES=275, PETRI_TRANSITIONS=290} [2021-11-09 10:36:58,851 INFO L334 CegarLoopForPetriNet]: 271 programPoint places, 4 predicate places. [2021-11-09 10:36:58,851 INFO L470 AbstractCegarLoop]: Abstraction has has 275 places, 290 transitions, 697 flow [2021-11-09 10:36:58,852 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 278.0) internal successors, (1390), 5 states have internal predecessors, (1390), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:36:58,852 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-09 10:36:58,853 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] [2021-11-09 10:36:58,853 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-09 10:36:58,853 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-09 10:36:58,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 10:36:58,854 INFO L85 PathProgramCache]: Analyzing trace with hash 1930063227, now seen corresponding path program 1 times [2021-11-09 10:36:58,854 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 10:36:58,854 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [366779049] [2021-11-09 10:36:58,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 10:36:58,855 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 10:36:58,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 10:36:58,964 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 10:36:58,964 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 10:36:58,964 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [366779049] [2021-11-09 10:36:58,965 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [366779049] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 10:36:58,965 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 10:36:58,965 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-09 10:36:58,965 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [180349566] [2021-11-09 10:36:58,966 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-09 10:36:58,966 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 10:36:58,967 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-09 10:36:58,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-09 10:36:58,972 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 276 out of 308 [2021-11-09 10:36:58,974 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 275 places, 290 transitions, 697 flow. Second operand has 4 states, 4 states have (on average 278.75) internal successors, (1115), 4 states have internal predecessors, (1115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:36:58,974 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-09 10:36:58,974 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 276 of 308 [2021-11-09 10:36:58,974 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-09 10:36:59,714 INFO L129 PetriNetUnfolder]: 296/2586 cut-off events. [2021-11-09 10:36:59,714 INFO L130 PetriNetUnfolder]: For 710/1076 co-relation queries the response was YES. [2021-11-09 10:36:59,733 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3407 conditions, 2586 events. 296/2586 cut-off events. For 710/1076 co-relation queries the response was YES. Maximal size of possible extension queue 166. Compared 25543 event pairs, 98 based on Foata normal form. 13/2409 useless extension candidates. Maximal degree in co-relation 3395. Up to 196 conditions per place. [2021-11-09 10:36:59,752 INFO L132 encePairwiseOnDemand]: 299/308 looper letters, 44 selfloop transitions, 14 changer transitions 0/315 dead transitions. [2021-11-09 10:36:59,753 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 279 places, 315 transitions, 931 flow [2021-11-09 10:36:59,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-09 10:36:59,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-11-09 10:36:59,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1426 transitions. [2021-11-09 10:36:59,759 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.925974025974026 [2021-11-09 10:36:59,759 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1426 transitions. [2021-11-09 10:36:59,760 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1426 transitions. [2021-11-09 10:36:59,761 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-09 10:36:59,761 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1426 transitions. [2021-11-09 10:36:59,767 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 285.2) internal successors, (1426), 5 states have internal predecessors, (1426), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:36:59,772 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 308.0) internal successors, (1848), 6 states have internal predecessors, (1848), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:36:59,773 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 308.0) internal successors, (1848), 6 states have internal predecessors, (1848), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:36:59,773 INFO L186 Difference]: Start difference. First operand has 275 places, 290 transitions, 697 flow. Second operand 5 states and 1426 transitions. [2021-11-09 10:36:59,773 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 279 places, 315 transitions, 931 flow [2021-11-09 10:36:59,782 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 279 places, 315 transitions, 931 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-11-09 10:36:59,789 INFO L242 Difference]: Finished difference. Result has 283 places, 301 transitions, 839 flow [2021-11-09 10:36:59,790 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=308, PETRI_DIFFERENCE_MINUEND_FLOW=697, PETRI_DIFFERENCE_MINUEND_PLACES=275, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=290, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=281, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=839, PETRI_PLACES=283, PETRI_TRANSITIONS=301} [2021-11-09 10:36:59,791 INFO L334 CegarLoopForPetriNet]: 271 programPoint places, 12 predicate places. [2021-11-09 10:36:59,791 INFO L470 AbstractCegarLoop]: Abstraction has has 283 places, 301 transitions, 839 flow [2021-11-09 10:36:59,792 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 278.75) internal successors, (1115), 4 states have internal predecessors, (1115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:36:59,792 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-09 10:36:59,792 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] [2021-11-09 10:36:59,792 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-09 10:36:59,793 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-09 10:36:59,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 10:36:59,794 INFO L85 PathProgramCache]: Analyzing trace with hash -725901635, now seen corresponding path program 1 times [2021-11-09 10:36:59,794 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 10:36:59,794 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [35845811] [2021-11-09 10:36:59,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 10:36:59,795 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 10:36:59,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 10:36:59,866 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 10:36:59,867 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 10:36:59,867 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [35845811] [2021-11-09 10:36:59,867 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [35845811] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 10:36:59,868 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 10:36:59,868 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-09 10:36:59,868 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [614362667] [2021-11-09 10:36:59,869 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-09 10:36:59,869 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 10:36:59,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-09 10:36:59,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-09 10:36:59,873 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 276 out of 308 [2021-11-09 10:36:59,875 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 283 places, 301 transitions, 839 flow. Second operand has 4 states, 4 states have (on average 278.5) internal successors, (1114), 4 states have internal predecessors, (1114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:36:59,875 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-09 10:36:59,875 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 276 of 308 [2021-11-09 10:36:59,876 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-09 10:37:00,916 INFO L129 PetriNetUnfolder]: 359/3084 cut-off events. [2021-11-09 10:37:00,917 INFO L130 PetriNetUnfolder]: For 1436/2263 co-relation queries the response was YES. [2021-11-09 10:37:00,944 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4230 conditions, 3084 events. 359/3084 cut-off events. For 1436/2263 co-relation queries the response was YES. Maximal size of possible extension queue 190. Compared 31912 event pairs, 51 based on Foata normal form. 12/2845 useless extension candidates. Maximal degree in co-relation 4214. Up to 127 conditions per place. [2021-11-09 10:37:00,967 INFO L132 encePairwiseOnDemand]: 299/308 looper letters, 55 selfloop transitions, 27 changer transitions 0/339 dead transitions. [2021-11-09 10:37:00,967 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 287 places, 339 transitions, 1272 flow [2021-11-09 10:37:00,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-09 10:37:00,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-11-09 10:37:00,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1426 transitions. [2021-11-09 10:37:00,974 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.925974025974026 [2021-11-09 10:37:00,974 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1426 transitions. [2021-11-09 10:37:00,974 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1426 transitions. [2021-11-09 10:37:00,976 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-09 10:37:00,976 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1426 transitions. [2021-11-09 10:37:00,981 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 285.2) internal successors, (1426), 5 states have internal predecessors, (1426), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:37:00,986 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 308.0) internal successors, (1848), 6 states have internal predecessors, (1848), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:37:00,988 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 308.0) internal successors, (1848), 6 states have internal predecessors, (1848), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:37:00,988 INFO L186 Difference]: Start difference. First operand has 283 places, 301 transitions, 839 flow. Second operand 5 states and 1426 transitions. [2021-11-09 10:37:00,988 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 287 places, 339 transitions, 1272 flow [2021-11-09 10:37:01,006 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 287 places, 339 transitions, 1268 flow, removed 2 selfloop flow, removed 0 redundant places. [2021-11-09 10:37:01,015 INFO L242 Difference]: Finished difference. Result has 291 places, 320 transitions, 1133 flow [2021-11-09 10:37:01,016 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=308, PETRI_DIFFERENCE_MINUEND_FLOW=837, PETRI_DIFFERENCE_MINUEND_PLACES=283, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=301, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=281, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1133, PETRI_PLACES=291, PETRI_TRANSITIONS=320} [2021-11-09 10:37:01,016 INFO L334 CegarLoopForPetriNet]: 271 programPoint places, 20 predicate places. [2021-11-09 10:37:01,016 INFO L470 AbstractCegarLoop]: Abstraction has has 291 places, 320 transitions, 1133 flow [2021-11-09 10:37:01,017 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 278.5) internal successors, (1114), 4 states have internal predecessors, (1114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:37:01,017 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-09 10:37:01,018 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] [2021-11-09 10:37:01,018 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-09 10:37:01,018 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-09 10:37:01,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 10:37:01,019 INFO L85 PathProgramCache]: Analyzing trace with hash -1338069919, now seen corresponding path program 1 times [2021-11-09 10:37:01,019 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 10:37:01,020 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [127855357] [2021-11-09 10:37:01,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 10:37:01,020 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 10:37:01,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 10:37:01,156 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 10:37:01,157 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 10:37:01,157 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [127855357] [2021-11-09 10:37:01,158 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [127855357] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 10:37:01,158 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 10:37:01,159 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-09 10:37:01,159 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [581764851] [2021-11-09 10:37:01,160 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-09 10:37:01,160 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 10:37:01,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-09 10:37:01,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-09 10:37:01,165 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 276 out of 308 [2021-11-09 10:37:01,167 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 291 places, 320 transitions, 1133 flow. Second operand has 4 states, 4 states have (on average 278.75) internal successors, (1115), 4 states have internal predecessors, (1115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:37:01,167 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-09 10:37:01,168 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 276 of 308 [2021-11-09 10:37:01,168 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-09 10:37:02,199 INFO L129 PetriNetUnfolder]: 357/3163 cut-off events. [2021-11-09 10:37:02,199 INFO L130 PetriNetUnfolder]: For 3169/5693 co-relation queries the response was YES. [2021-11-09 10:37:02,226 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4655 conditions, 3163 events. 357/3163 cut-off events. For 3169/5693 co-relation queries the response was YES. Maximal size of possible extension queue 196. Compared 33189 event pairs, 66 based on Foata normal form. 23/2937 useless extension candidates. Maximal degree in co-relation 4635. Up to 214 conditions per place. [2021-11-09 10:37:02,245 INFO L132 encePairwiseOnDemand]: 299/308 looper letters, 76 selfloop transitions, 17 changer transitions 0/350 dead transitions. [2021-11-09 10:37:02,245 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 295 places, 350 transitions, 1564 flow [2021-11-09 10:37:02,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-09 10:37:02,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-11-09 10:37:02,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1426 transitions. [2021-11-09 10:37:02,251 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.925974025974026 [2021-11-09 10:37:02,251 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1426 transitions. [2021-11-09 10:37:02,251 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1426 transitions. [2021-11-09 10:37:02,253 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-09 10:37:02,253 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1426 transitions. [2021-11-09 10:37:02,257 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 285.2) internal successors, (1426), 5 states have internal predecessors, (1426), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:37:02,263 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 308.0) internal successors, (1848), 6 states have internal predecessors, (1848), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:37:02,264 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 308.0) internal successors, (1848), 6 states have internal predecessors, (1848), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:37:02,265 INFO L186 Difference]: Start difference. First operand has 291 places, 320 transitions, 1133 flow. Second operand 5 states and 1426 transitions. [2021-11-09 10:37:02,265 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 295 places, 350 transitions, 1564 flow [2021-11-09 10:37:02,289 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 295 places, 350 transitions, 1556 flow, removed 4 selfloop flow, removed 0 redundant places. [2021-11-09 10:37:02,297 INFO L242 Difference]: Finished difference. Result has 299 places, 334 transitions, 1365 flow [2021-11-09 10:37:02,298 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=308, PETRI_DIFFERENCE_MINUEND_FLOW=1125, PETRI_DIFFERENCE_MINUEND_PLACES=291, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=320, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=307, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1365, PETRI_PLACES=299, PETRI_TRANSITIONS=334} [2021-11-09 10:37:02,298 INFO L334 CegarLoopForPetriNet]: 271 programPoint places, 28 predicate places. [2021-11-09 10:37:02,298 INFO L470 AbstractCegarLoop]: Abstraction has has 299 places, 334 transitions, 1365 flow [2021-11-09 10:37:02,299 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 278.75) internal successors, (1115), 4 states have internal predecessors, (1115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:37:02,299 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-09 10:37:02,300 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] [2021-11-09 10:37:02,300 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-09 10:37:02,300 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-09 10:37:02,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 10:37:02,301 INFO L85 PathProgramCache]: Analyzing trace with hash 418302911, now seen corresponding path program 1 times [2021-11-09 10:37:02,301 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 10:37:02,301 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1835623398] [2021-11-09 10:37:02,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 10:37:02,302 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 10:37:02,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 10:37:02,440 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 10:37:02,440 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 10:37:02,441 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1835623398] [2021-11-09 10:37:02,441 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1835623398] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 10:37:02,441 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 10:37:02,441 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-09 10:37:02,442 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [26227794] [2021-11-09 10:37:02,442 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-09 10:37:02,442 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 10:37:02,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-09 10:37:02,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-11-09 10:37:02,447 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 276 out of 308 [2021-11-09 10:37:02,449 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 299 places, 334 transitions, 1365 flow. Second operand has 5 states, 5 states have (on average 278.0) internal successors, (1390), 5 states have internal predecessors, (1390), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:37:02,449 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-09 10:37:02,449 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 276 of 308 [2021-11-09 10:37:02,449 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-09 10:37:03,311 INFO L129 PetriNetUnfolder]: 347/3417 cut-off events. [2021-11-09 10:37:03,311 INFO L130 PetriNetUnfolder]: For 4431/7027 co-relation queries the response was YES. [2021-11-09 10:37:03,344 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5301 conditions, 3417 events. 347/3417 cut-off events. For 4431/7027 co-relation queries the response was YES. Maximal size of possible extension queue 206. Compared 36845 event pairs, 27 based on Foata normal form. 3/3157 useless extension candidates. Maximal degree in co-relation 5277. Up to 124 conditions per place. [2021-11-09 10:37:03,365 INFO L132 encePairwiseOnDemand]: 301/308 looper letters, 112 selfloop transitions, 27 changer transitions 0/396 dead transitions. [2021-11-09 10:37:03,366 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 303 places, 396 transitions, 2341 flow [2021-11-09 10:37:03,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-09 10:37:03,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-11-09 10:37:03,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1422 transitions. [2021-11-09 10:37:03,372 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9233766233766234 [2021-11-09 10:37:03,373 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1422 transitions. [2021-11-09 10:37:03,373 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1422 transitions. [2021-11-09 10:37:03,374 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-09 10:37:03,375 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1422 transitions. [2021-11-09 10:37:03,380 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 284.4) internal successors, (1422), 5 states have internal predecessors, (1422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:37:03,385 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 308.0) internal successors, (1848), 6 states have internal predecessors, (1848), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:37:03,386 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 308.0) internal successors, (1848), 6 states have internal predecessors, (1848), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:37:03,386 INFO L186 Difference]: Start difference. First operand has 299 places, 334 transitions, 1365 flow. Second operand 5 states and 1422 transitions. [2021-11-09 10:37:03,387 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 303 places, 396 transitions, 2341 flow [2021-11-09 10:37:03,418 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 303 places, 396 transitions, 2331 flow, removed 5 selfloop flow, removed 0 redundant places. [2021-11-09 10:37:03,427 INFO L242 Difference]: Finished difference. Result has 306 places, 355 transitions, 1769 flow [2021-11-09 10:37:03,428 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=308, PETRI_DIFFERENCE_MINUEND_FLOW=1357, PETRI_DIFFERENCE_MINUEND_PLACES=299, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=334, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=311, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1769, PETRI_PLACES=306, PETRI_TRANSITIONS=355} [2021-11-09 10:37:03,429 INFO L334 CegarLoopForPetriNet]: 271 programPoint places, 35 predicate places. [2021-11-09 10:37:03,429 INFO L470 AbstractCegarLoop]: Abstraction has has 306 places, 355 transitions, 1769 flow [2021-11-09 10:37:03,430 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 278.0) internal successors, (1390), 5 states have internal predecessors, (1390), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:37:03,430 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-09 10:37:03,430 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] [2021-11-09 10:37:03,431 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-09 10:37:03,431 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-09 10:37:03,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 10:37:03,432 INFO L85 PathProgramCache]: Analyzing trace with hash -554044213, now seen corresponding path program 2 times [2021-11-09 10:37:03,432 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 10:37:03,432 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1007160511] [2021-11-09 10:37:03,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 10:37:03,433 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 10:37:03,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 10:37:03,516 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 10:37:03,517 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 10:37:03,517 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1007160511] [2021-11-09 10:37:03,517 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1007160511] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 10:37:03,517 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 10:37:03,518 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-09 10:37:03,518 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1588007349] [2021-11-09 10:37:03,519 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-09 10:37:03,519 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 10:37:03,520 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-09 10:37:03,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-09 10:37:03,527 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 276 out of 308 [2021-11-09 10:37:03,538 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 306 places, 355 transitions, 1769 flow. Second operand has 4 states, 4 states have (on average 278.5) internal successors, (1114), 4 states have internal predecessors, (1114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:37:03,547 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-09 10:37:03,547 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 276 of 308 [2021-11-09 10:37:03,548 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-09 10:37:04,580 INFO L129 PetriNetUnfolder]: 423/4218 cut-off events. [2021-11-09 10:37:04,580 INFO L130 PetriNetUnfolder]: For 5524/8596 co-relation queries the response was YES. [2021-11-09 10:37:04,630 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6336 conditions, 4218 events. 423/4218 cut-off events. For 5524/8596 co-relation queries the response was YES. Maximal size of possible extension queue 260. Compared 48416 event pairs, 30 based on Foata normal form. 22/3909 useless extension candidates. Maximal degree in co-relation 6308. Up to 124 conditions per place. [2021-11-09 10:37:04,657 INFO L132 encePairwiseOnDemand]: 299/308 looper letters, 92 selfloop transitions, 47 changer transitions 0/396 dead transitions. [2021-11-09 10:37:04,658 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 310 places, 396 transitions, 2548 flow [2021-11-09 10:37:04,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-09 10:37:04,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-11-09 10:37:04,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1426 transitions. [2021-11-09 10:37:04,665 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.925974025974026 [2021-11-09 10:37:04,665 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1426 transitions. [2021-11-09 10:37:04,665 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1426 transitions. [2021-11-09 10:37:04,667 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-09 10:37:04,667 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1426 transitions. [2021-11-09 10:37:04,673 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 285.2) internal successors, (1426), 5 states have internal predecessors, (1426), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:37:04,677 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 308.0) internal successors, (1848), 6 states have internal predecessors, (1848), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:37:04,679 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 308.0) internal successors, (1848), 6 states have internal predecessors, (1848), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:37:04,679 INFO L186 Difference]: Start difference. First operand has 306 places, 355 transitions, 1769 flow. Second operand 5 states and 1426 transitions. [2021-11-09 10:37:04,679 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 310 places, 396 transitions, 2548 flow [2021-11-09 10:37:04,722 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 309 places, 396 transitions, 2529 flow, removed 8 selfloop flow, removed 1 redundant places. [2021-11-09 10:37:04,732 INFO L242 Difference]: Finished difference. Result has 313 places, 376 transitions, 2286 flow [2021-11-09 10:37:04,733 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=308, PETRI_DIFFERENCE_MINUEND_FLOW=1756, PETRI_DIFFERENCE_MINUEND_PLACES=305, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=355, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=28, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=312, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=2286, PETRI_PLACES=313, PETRI_TRANSITIONS=376} [2021-11-09 10:37:04,733 INFO L334 CegarLoopForPetriNet]: 271 programPoint places, 42 predicate places. [2021-11-09 10:37:04,733 INFO L470 AbstractCegarLoop]: Abstraction has has 313 places, 376 transitions, 2286 flow [2021-11-09 10:37:04,734 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 278.5) internal successors, (1114), 4 states have internal predecessors, (1114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:37:04,734 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-09 10:37:04,735 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] [2021-11-09 10:37:04,735 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-09 10:37:04,735 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-09 10:37:04,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 10:37:04,737 INFO L85 PathProgramCache]: Analyzing trace with hash 785999757, now seen corresponding path program 1 times [2021-11-09 10:37:04,737 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 10:37:04,737 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [541164534] [2021-11-09 10:37:04,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 10:37:04,738 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 10:37:04,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 10:37:04,800 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 10:37:04,800 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 10:37:04,801 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [541164534] [2021-11-09 10:37:04,801 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [541164534] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 10:37:04,801 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 10:37:04,801 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-09 10:37:04,802 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [844865725] [2021-11-09 10:37:04,802 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-09 10:37:04,802 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 10:37:04,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-09 10:37:04,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-09 10:37:04,806 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 289 out of 308 [2021-11-09 10:37:04,835 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 313 places, 376 transitions, 2286 flow. Second operand has 3 states, 3 states have (on average 290.0) internal successors, (870), 3 states have internal predecessors, (870), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:37:04,835 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-09 10:37:04,835 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 289 of 308 [2021-11-09 10:37:04,835 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-09 10:37:05,468 INFO L129 PetriNetUnfolder]: 220/3332 cut-off events. [2021-11-09 10:37:05,468 INFO L130 PetriNetUnfolder]: For 4634/5658 co-relation queries the response was YES. [2021-11-09 10:37:05,509 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4742 conditions, 3332 events. 220/3332 cut-off events. For 4634/5658 co-relation queries the response was YES. Maximal size of possible extension queue 166. Compared 36345 event pairs, 1 based on Foata normal form. 5/3089 useless extension candidates. Maximal degree in co-relation 4711. Up to 101 conditions per place. [2021-11-09 10:37:05,526 INFO L132 encePairwiseOnDemand]: 305/308 looper letters, 4 selfloop transitions, 2 changer transitions 0/377 dead transitions. [2021-11-09 10:37:05,526 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 315 places, 377 transitions, 2300 flow [2021-11-09 10:37:05,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-09 10:37:05,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-11-09 10:37:05,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 874 transitions. [2021-11-09 10:37:05,530 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9458874458874459 [2021-11-09 10:37:05,531 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 874 transitions. [2021-11-09 10:37:05,531 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 874 transitions. [2021-11-09 10:37:05,532 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-09 10:37:05,532 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 874 transitions. [2021-11-09 10:37:05,535 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 291.3333333333333) internal successors, (874), 3 states have internal predecessors, (874), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:37:05,537 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 308.0) internal successors, (1232), 4 states have internal predecessors, (1232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:37:05,538 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 308.0) internal successors, (1232), 4 states have internal predecessors, (1232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:37:05,538 INFO L186 Difference]: Start difference. First operand has 313 places, 376 transitions, 2286 flow. Second operand 3 states and 874 transitions. [2021-11-09 10:37:05,539 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 315 places, 377 transitions, 2300 flow [2021-11-09 10:37:05,580 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 315 places, 377 transitions, 2252 flow, removed 24 selfloop flow, removed 0 redundant places. [2021-11-09 10:37:05,588 INFO L242 Difference]: Finished difference. Result has 316 places, 376 transitions, 2246 flow [2021-11-09 10:37:05,589 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=308, PETRI_DIFFERENCE_MINUEND_FLOW=2238, PETRI_DIFFERENCE_MINUEND_PLACES=313, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=376, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=374, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2246, PETRI_PLACES=316, PETRI_TRANSITIONS=376} [2021-11-09 10:37:05,590 INFO L334 CegarLoopForPetriNet]: 271 programPoint places, 45 predicate places. [2021-11-09 10:37:05,590 INFO L470 AbstractCegarLoop]: Abstraction has has 316 places, 376 transitions, 2246 flow [2021-11-09 10:37:05,590 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 290.0) internal successors, (870), 3 states have internal predecessors, (870), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:37:05,591 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-09 10:37:05,591 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] [2021-11-09 10:37:05,591 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-09 10:37:05,591 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-09 10:37:05,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 10:37:05,592 INFO L85 PathProgramCache]: Analyzing trace with hash -1994470983, now seen corresponding path program 1 times [2021-11-09 10:37:05,592 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 10:37:05,593 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1970313046] [2021-11-09 10:37:05,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 10:37:05,593 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 10:37:05,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 10:37:05,724 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 10:37:05,724 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 10:37:05,725 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1970313046] [2021-11-09 10:37:05,725 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1970313046] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 10:37:05,725 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 10:37:05,725 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-09 10:37:05,726 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [887158425] [2021-11-09 10:37:05,726 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-09 10:37:05,726 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 10:37:05,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-09 10:37:05,727 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-11-09 10:37:05,730 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 276 out of 308 [2021-11-09 10:37:05,733 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 316 places, 376 transitions, 2246 flow. Second operand has 5 states, 5 states have (on average 278.0) internal successors, (1390), 5 states have internal predecessors, (1390), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:37:05,733 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-09 10:37:05,733 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 276 of 308 [2021-11-09 10:37:05,733 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-09 10:37:06,872 INFO L129 PetriNetUnfolder]: 391/4678 cut-off events. [2021-11-09 10:37:06,872 INFO L130 PetriNetUnfolder]: For 7484/12115 co-relation queries the response was YES. [2021-11-09 10:37:06,919 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7123 conditions, 4678 events. 391/4678 cut-off events. For 7484/12115 co-relation queries the response was YES. Maximal size of possible extension queue 261. Compared 55223 event pairs, 34 based on Foata normal form. 22/4383 useless extension candidates. Maximal degree in co-relation 7090. Up to 124 conditions per place. [2021-11-09 10:37:06,946 INFO L132 encePairwiseOnDemand]: 300/308 looper letters, 107 selfloop transitions, 61 changer transitions 0/425 dead transitions. [2021-11-09 10:37:06,947 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 320 places, 425 transitions, 3167 flow [2021-11-09 10:37:06,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-09 10:37:06,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-11-09 10:37:06,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1428 transitions. [2021-11-09 10:37:06,952 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9272727272727272 [2021-11-09 10:37:06,952 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1428 transitions. [2021-11-09 10:37:06,953 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1428 transitions. [2021-11-09 10:37:06,954 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-09 10:37:06,954 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1428 transitions. [2021-11-09 10:37:06,959 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 285.6) internal successors, (1428), 5 states have internal predecessors, (1428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:37:06,963 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 308.0) internal successors, (1848), 6 states have internal predecessors, (1848), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:37:06,964 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 308.0) internal successors, (1848), 6 states have internal predecessors, (1848), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:37:06,964 INFO L186 Difference]: Start difference. First operand has 316 places, 376 transitions, 2246 flow. Second operand 5 states and 1428 transitions. [2021-11-09 10:37:06,964 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 320 places, 425 transitions, 3167 flow [2021-11-09 10:37:07,012 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 318 places, 425 transitions, 3163 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-11-09 10:37:07,021 INFO L242 Difference]: Finished difference. Result has 322 places, 392 transitions, 2772 flow [2021-11-09 10:37:07,022 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=308, PETRI_DIFFERENCE_MINUEND_FLOW=2242, PETRI_DIFFERENCE_MINUEND_PLACES=314, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=376, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=46, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=320, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=2772, PETRI_PLACES=322, PETRI_TRANSITIONS=392} [2021-11-09 10:37:07,023 INFO L334 CegarLoopForPetriNet]: 271 programPoint places, 51 predicate places. [2021-11-09 10:37:07,023 INFO L470 AbstractCegarLoop]: Abstraction has has 322 places, 392 transitions, 2772 flow [2021-11-09 10:37:07,024 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 278.0) internal successors, (1390), 5 states have internal predecessors, (1390), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:37:07,024 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-09 10:37:07,025 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] [2021-11-09 10:37:07,025 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-11-09 10:37:07,025 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-09 10:37:07,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 10:37:07,026 INFO L85 PathProgramCache]: Analyzing trace with hash 2076751659, now seen corresponding path program 2 times [2021-11-09 10:37:07,026 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 10:37:07,026 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1275252447] [2021-11-09 10:37:07,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 10:37:07,026 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 10:37:07,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 10:37:07,171 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 10:37:07,172 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 10:37:07,172 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1275252447] [2021-11-09 10:37:07,172 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1275252447] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 10:37:07,172 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 10:37:07,172 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-09 10:37:07,173 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [716859442] [2021-11-09 10:37:07,173 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-09 10:37:07,173 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 10:37:07,174 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-09 10:37:07,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-11-09 10:37:07,181 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 276 out of 308 [2021-11-09 10:37:07,183 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 322 places, 392 transitions, 2772 flow. Second operand has 5 states, 5 states have (on average 278.0) internal successors, (1390), 5 states have internal predecessors, (1390), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:37:07,184 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-09 10:37:07,184 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 276 of 308 [2021-11-09 10:37:07,184 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-09 10:37:08,283 INFO L129 PetriNetUnfolder]: 393/4687 cut-off events. [2021-11-09 10:37:08,283 INFO L130 PetriNetUnfolder]: For 10453/16811 co-relation queries the response was YES. [2021-11-09 10:37:08,342 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7374 conditions, 4687 events. 393/4687 cut-off events. For 10453/16811 co-relation queries the response was YES. Maximal size of possible extension queue 261. Compared 55371 event pairs, 33 based on Foata normal form. 21/4385 useless extension candidates. Maximal degree in co-relation 7338. Up to 147 conditions per place. [2021-11-09 10:37:08,367 INFO L132 encePairwiseOnDemand]: 300/308 looper letters, 128 selfloop transitions, 48 changer transitions 0/433 dead transitions. [2021-11-09 10:37:08,367 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 326 places, 433 transitions, 3591 flow [2021-11-09 10:37:08,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-09 10:37:08,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-11-09 10:37:08,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1426 transitions. [2021-11-09 10:37:08,376 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.925974025974026 [2021-11-09 10:37:08,376 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1426 transitions. [2021-11-09 10:37:08,376 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1426 transitions. [2021-11-09 10:37:08,378 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-09 10:37:08,378 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1426 transitions. [2021-11-09 10:37:08,383 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 285.2) internal successors, (1426), 5 states have internal predecessors, (1426), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:37:08,387 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 308.0) internal successors, (1848), 6 states have internal predecessors, (1848), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:37:08,388 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 308.0) internal successors, (1848), 6 states have internal predecessors, (1848), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:37:08,388 INFO L186 Difference]: Start difference. First operand has 322 places, 392 transitions, 2772 flow. Second operand 5 states and 1426 transitions. [2021-11-09 10:37:08,389 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 326 places, 433 transitions, 3591 flow [2021-11-09 10:37:08,459 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 326 places, 433 transitions, 3559 flow, removed 16 selfloop flow, removed 0 redundant places. [2021-11-09 10:37:08,476 INFO L242 Difference]: Finished difference. Result has 329 places, 396 transitions, 2991 flow [2021-11-09 10:37:08,477 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=308, PETRI_DIFFERENCE_MINUEND_FLOW=2720, PETRI_DIFFERENCE_MINUEND_PLACES=322, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=391, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=43, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=343, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=2991, PETRI_PLACES=329, PETRI_TRANSITIONS=396} [2021-11-09 10:37:08,478 INFO L334 CegarLoopForPetriNet]: 271 programPoint places, 58 predicate places. [2021-11-09 10:37:08,478 INFO L470 AbstractCegarLoop]: Abstraction has has 329 places, 396 transitions, 2991 flow [2021-11-09 10:37:08,479 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 278.0) internal successors, (1390), 5 states have internal predecessors, (1390), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:37:08,479 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-09 10:37:08,479 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] [2021-11-09 10:37:08,479 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-11-09 10:37:08,480 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-09 10:37:08,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 10:37:08,480 INFO L85 PathProgramCache]: Analyzing trace with hash -1189820221, now seen corresponding path program 1 times [2021-11-09 10:37:08,480 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 10:37:08,481 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [732365235] [2021-11-09 10:37:08,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 10:37:08,481 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 10:37:08,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 10:37:09,020 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 10:37:09,021 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 10:37:09,021 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [732365235] [2021-11-09 10:37:09,021 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [732365235] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 10:37:09,021 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 10:37:09,022 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2021-11-09 10:37:09,022 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1910628236] [2021-11-09 10:37:09,023 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-11-09 10:37:09,023 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 10:37:09,023 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-11-09 10:37:09,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=206, Unknown=0, NotChecked=0, Total=240 [2021-11-09 10:37:09,033 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 205 out of 308 [2021-11-09 10:37:09,039 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 329 places, 396 transitions, 2991 flow. Second operand has 16 states, 16 states have (on average 208.8125) internal successors, (3341), 16 states have internal predecessors, (3341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:37:09,039 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-09 10:37:09,039 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 205 of 308 [2021-11-09 10:37:09,039 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-09 10:37:22,826 INFO L129 PetriNetUnfolder]: 9670/55023 cut-off events. [2021-11-09 10:37:22,826 INFO L130 PetriNetUnfolder]: For 20841/24855 co-relation queries the response was YES. [2021-11-09 10:37:23,371 INFO L84 FinitePrefix]: Finished finitePrefix Result has 77829 conditions, 55023 events. 9670/55023 cut-off events. For 20841/24855 co-relation queries the response was YES. Maximal size of possible extension queue 2549. Compared 930701 event pairs, 4394 based on Foata normal form. 153/48352 useless extension candidates. Maximal degree in co-relation 77789. Up to 4325 conditions per place. [2021-11-09 10:37:23,813 INFO L132 encePairwiseOnDemand]: 274/308 looper letters, 161 selfloop transitions, 48 changer transitions 11/534 dead transitions. [2021-11-09 10:37:23,813 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 363 places, 534 transitions, 3707 flow [2021-11-09 10:37:23,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-11-09 10:37:23,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2021-11-09 10:37:23,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 7398 transitions. [2021-11-09 10:37:23,843 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6862708719851577 [2021-11-09 10:37:23,844 INFO L72 ComplementDD]: Start complementDD. Operand 35 states and 7398 transitions. [2021-11-09 10:37:23,844 INFO L73 IsDeterministic]: Start isDeterministic. Operand 35 states and 7398 transitions. [2021-11-09 10:37:23,850 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-09 10:37:23,850 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 35 states and 7398 transitions. [2021-11-09 10:37:23,873 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 36 states, 35 states have (on average 211.37142857142857) internal successors, (7398), 35 states have internal predecessors, (7398), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:37:23,900 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 36 states, 36 states have (on average 308.0) internal successors, (11088), 36 states have internal predecessors, (11088), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:37:23,905 INFO L81 ComplementDD]: Finished complementDD. Result has 36 states, 36 states have (on average 308.0) internal successors, (11088), 36 states have internal predecessors, (11088), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:37:23,906 INFO L186 Difference]: Start difference. First operand has 329 places, 396 transitions, 2991 flow. Second operand 35 states and 7398 transitions. [2021-11-09 10:37:23,906 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 363 places, 534 transitions, 3707 flow [2021-11-09 10:37:24,106 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 362 places, 534 transitions, 3652 flow, removed 15 selfloop flow, removed 1 redundant places. [2021-11-09 10:37:24,121 INFO L242 Difference]: Finished difference. Result has 381 places, 434 transitions, 3227 flow [2021-11-09 10:37:24,122 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=308, PETRI_DIFFERENCE_MINUEND_FLOW=2936, PETRI_DIFFERENCE_MINUEND_PLACES=328, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=396, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=365, PETRI_DIFFERENCE_SUBTRAHEND_STATES=35, PETRI_FLOW=3227, PETRI_PLACES=381, PETRI_TRANSITIONS=434} [2021-11-09 10:37:24,122 INFO L334 CegarLoopForPetriNet]: 271 programPoint places, 110 predicate places. [2021-11-09 10:37:24,123 INFO L470 AbstractCegarLoop]: Abstraction has has 381 places, 434 transitions, 3227 flow [2021-11-09 10:37:24,124 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 208.8125) internal successors, (3341), 16 states have internal predecessors, (3341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:37:24,124 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-09 10:37:24,124 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] [2021-11-09 10:37:24,125 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-11-09 10:37:24,125 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-09 10:37:24,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 10:37:24,126 INFO L85 PathProgramCache]: Analyzing trace with hash 133118701, now seen corresponding path program 1 times [2021-11-09 10:37:24,126 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 10:37:24,126 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1782690830] [2021-11-09 10:37:24,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 10:37:24,126 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 10:37:24,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 10:37:24,231 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 10:37:24,231 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 10:37:24,231 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1782690830] [2021-11-09 10:37:24,232 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1782690830] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 10:37:24,232 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 10:37:24,232 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-09 10:37:24,232 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1284586706] [2021-11-09 10:37:24,233 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-09 10:37:24,233 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 10:37:24,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-09 10:37:24,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-09 10:37:24,237 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 276 out of 308 [2021-11-09 10:37:24,239 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 381 places, 434 transitions, 3227 flow. Second operand has 5 states, 5 states have (on average 278.0) internal successors, (1390), 5 states have internal predecessors, (1390), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:37:24,239 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-09 10:37:24,240 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 276 of 308 [2021-11-09 10:37:24,240 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-09 10:37:29,637 INFO L129 PetriNetUnfolder]: 1751/23304 cut-off events. [2021-11-09 10:37:29,638 INFO L130 PetriNetUnfolder]: For 43743/68787 co-relation queries the response was YES. [2021-11-09 10:37:29,935 INFO L84 FinitePrefix]: Finished finitePrefix Result has 41418 conditions, 23304 events. 1751/23304 cut-off events. For 43743/68787 co-relation queries the response was YES. Maximal size of possible extension queue 1025. Compared 379811 event pairs, 253 based on Foata normal form. 132/21903 useless extension candidates. Maximal degree in co-relation 41359. Up to 1143 conditions per place. [2021-11-09 10:37:30,034 INFO L132 encePairwiseOnDemand]: 301/308 looper letters, 140 selfloop transitions, 55 changer transitions 0/490 dead transitions. [2021-11-09 10:37:30,035 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 378 places, 490 transitions, 4460 flow [2021-11-09 10:37:30,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-09 10:37:30,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-11-09 10:37:30,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1423 transitions. [2021-11-09 10:37:30,041 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.924025974025974 [2021-11-09 10:37:30,041 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1423 transitions. [2021-11-09 10:37:30,041 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1423 transitions. [2021-11-09 10:37:30,043 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-09 10:37:30,043 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1423 transitions. [2021-11-09 10:37:30,048 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 284.6) internal successors, (1423), 5 states have internal predecessors, (1423), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:37:30,052 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 308.0) internal successors, (1848), 6 states have internal predecessors, (1848), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:37:30,053 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 308.0) internal successors, (1848), 6 states have internal predecessors, (1848), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:37:30,054 INFO L186 Difference]: Start difference. First operand has 381 places, 434 transitions, 3227 flow. Second operand 5 states and 1423 transitions. [2021-11-09 10:37:30,054 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 378 places, 490 transitions, 4460 flow [2021-11-09 10:37:31,163 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 363 places, 490 transitions, 4426 flow, removed 7 selfloop flow, removed 15 redundant places. [2021-11-09 10:37:31,174 INFO L242 Difference]: Finished difference. Result has 367 places, 461 transitions, 3860 flow [2021-11-09 10:37:31,175 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=308, PETRI_DIFFERENCE_MINUEND_FLOW=3193, PETRI_DIFFERENCE_MINUEND_PLACES=359, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=434, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=30, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=381, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=3860, PETRI_PLACES=367, PETRI_TRANSITIONS=461} [2021-11-09 10:37:31,175 INFO L334 CegarLoopForPetriNet]: 271 programPoint places, 96 predicate places. [2021-11-09 10:37:31,176 INFO L470 AbstractCegarLoop]: Abstraction has has 367 places, 461 transitions, 3860 flow [2021-11-09 10:37:31,176 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 278.0) internal successors, (1390), 5 states have internal predecessors, (1390), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:37:31,176 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-09 10:37:31,176 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] [2021-11-09 10:37:31,176 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-11-09 10:37:31,177 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-09 10:37:31,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 10:37:31,177 INFO L85 PathProgramCache]: Analyzing trace with hash -721392101, now seen corresponding path program 1 times [2021-11-09 10:37:31,178 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 10:37:31,178 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1209724300] [2021-11-09 10:37:31,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 10:37:31,178 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 10:37:31,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 10:37:31,294 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 10:37:31,294 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 10:37:31,294 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1209724300] [2021-11-09 10:37:31,295 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1209724300] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 10:37:31,295 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 10:37:31,295 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-09 10:37:31,295 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1698062917] [2021-11-09 10:37:31,296 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-09 10:37:31,296 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 10:37:31,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-09 10:37:31,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-09 10:37:31,300 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 243 out of 308 [2021-11-09 10:37:31,302 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 367 places, 461 transitions, 3860 flow. Second operand has 6 states, 6 states have (on average 249.16666666666666) internal successors, (1495), 6 states have internal predecessors, (1495), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:37:31,303 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-09 10:37:31,303 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 243 of 308 [2021-11-09 10:37:31,303 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-09 10:37:44,371 INFO L129 PetriNetUnfolder]: 7770/47630 cut-off events. [2021-11-09 10:37:44,371 INFO L130 PetriNetUnfolder]: For 54392/61891 co-relation queries the response was YES. [2021-11-09 10:37:44,950 INFO L84 FinitePrefix]: Finished finitePrefix Result has 88012 conditions, 47630 events. 7770/47630 cut-off events. For 54392/61891 co-relation queries the response was YES. Maximal size of possible extension queue 2377. Compared 811284 event pairs, 4100 based on Foata normal form. 256/44632 useless extension candidates. Maximal degree in co-relation 87956. Up to 12846 conditions per place. [2021-11-09 10:37:45,155 INFO L132 encePairwiseOnDemand]: 294/308 looper letters, 92 selfloop transitions, 50 changer transitions 3/532 dead transitions. [2021-11-09 10:37:45,156 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 373 places, 532 transitions, 4461 flow [2021-11-09 10:37:45,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-09 10:37:45,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-11-09 10:37:45,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1770 transitions. [2021-11-09 10:37:45,164 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8209647495361782 [2021-11-09 10:37:45,165 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1770 transitions. [2021-11-09 10:37:45,165 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1770 transitions. [2021-11-09 10:37:45,167 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-09 10:37:45,167 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1770 transitions. [2021-11-09 10:37:45,173 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 252.85714285714286) internal successors, (1770), 7 states have internal predecessors, (1770), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:37:45,179 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 308.0) internal successors, (2464), 8 states have internal predecessors, (2464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:37:45,180 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 308.0) internal successors, (2464), 8 states have internal predecessors, (2464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:37:45,181 INFO L186 Difference]: Start difference. First operand has 367 places, 461 transitions, 3860 flow. Second operand 7 states and 1770 transitions. [2021-11-09 10:37:45,181 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 373 places, 532 transitions, 4461 flow [2021-11-09 10:37:46,293 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 373 places, 532 transitions, 4461 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-11-09 10:37:46,300 INFO L242 Difference]: Finished difference. Result has 378 places, 508 transitions, 4329 flow [2021-11-09 10:37:46,300 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=308, PETRI_DIFFERENCE_MINUEND_FLOW=3860, PETRI_DIFFERENCE_MINUEND_PLACES=367, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=461, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=433, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=4329, PETRI_PLACES=378, PETRI_TRANSITIONS=508} [2021-11-09 10:37:46,301 INFO L334 CegarLoopForPetriNet]: 271 programPoint places, 107 predicate places. [2021-11-09 10:37:46,301 INFO L470 AbstractCegarLoop]: Abstraction has has 378 places, 508 transitions, 4329 flow [2021-11-09 10:37:46,301 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 249.16666666666666) internal successors, (1495), 6 states have internal predecessors, (1495), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:37:46,301 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-09 10:37:46,301 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] [2021-11-09 10:37:46,301 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-11-09 10:37:46,302 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-09 10:37:46,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 10:37:46,302 INFO L85 PathProgramCache]: Analyzing trace with hash 1536416529, now seen corresponding path program 1 times [2021-11-09 10:37:46,302 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 10:37:46,302 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [121447592] [2021-11-09 10:37:46,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 10:37:46,302 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 10:37:46,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 10:37:46,350 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 10:37:46,350 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 10:37:46,350 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [121447592] [2021-11-09 10:37:46,351 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [121447592] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 10:37:46,351 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 10:37:46,351 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-09 10:37:46,351 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [739594846] [2021-11-09 10:37:46,352 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-09 10:37:46,352 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 10:37:46,352 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-09 10:37:46,352 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-09 10:37:46,354 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 276 out of 308 [2021-11-09 10:37:46,356 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 378 places, 508 transitions, 4329 flow. Second operand has 4 states, 4 states have (on average 278.5) internal successors, (1114), 4 states have internal predecessors, (1114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:37:46,356 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-09 10:37:46,356 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 276 of 308 [2021-11-09 10:37:46,356 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-09 10:37:53,136 INFO L129 PetriNetUnfolder]: 3138/31615 cut-off events. [2021-11-09 10:37:53,136 INFO L130 PetriNetUnfolder]: For 54559/83168 co-relation queries the response was YES. [2021-11-09 10:37:53,493 INFO L84 FinitePrefix]: Finished finitePrefix Result has 59717 conditions, 31615 events. 3138/31615 cut-off events. For 54559/83168 co-relation queries the response was YES. Maximal size of possible extension queue 1541. Compared 535644 event pairs, 718 based on Foata normal form. 172/29905 useless extension candidates. Maximal degree in co-relation 59655. Up to 3268 conditions per place. [2021-11-09 10:37:53,881 INFO L132 encePairwiseOnDemand]: 301/308 looper letters, 126 selfloop transitions, 60 changer transitions 0/528 dead transitions. [2021-11-09 10:37:53,881 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 380 places, 528 transitions, 4890 flow [2021-11-09 10:37:53,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-09 10:37:53,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-11-09 10:37:53,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1423 transitions. [2021-11-09 10:37:53,897 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.924025974025974 [2021-11-09 10:37:53,898 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1423 transitions. [2021-11-09 10:37:53,898 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1423 transitions. [2021-11-09 10:37:53,898 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-09 10:37:53,899 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1423 transitions. [2021-11-09 10:37:53,901 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 284.6) internal successors, (1423), 5 states have internal predecessors, (1423), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:37:53,905 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 308.0) internal successors, (1848), 6 states have internal predecessors, (1848), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:37:53,906 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 308.0) internal successors, (1848), 6 states have internal predecessors, (1848), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:37:53,906 INFO L186 Difference]: Start difference. First operand has 378 places, 508 transitions, 4329 flow. Second operand 5 states and 1423 transitions. [2021-11-09 10:37:53,906 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 380 places, 528 transitions, 4890 flow [2021-11-09 10:37:54,376 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 378 places, 528 transitions, 4886 flow, removed 2 selfloop flow, removed 2 redundant places. [2021-11-09 10:37:54,386 INFO L242 Difference]: Finished difference. Result has 378 places, 507 transitions, 4427 flow [2021-11-09 10:37:54,387 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=308, PETRI_DIFFERENCE_MINUEND_FLOW=4307, PETRI_DIFFERENCE_MINUEND_PLACES=374, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=507, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=60, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=447, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=4427, PETRI_PLACES=378, PETRI_TRANSITIONS=507} [2021-11-09 10:37:54,387 INFO L334 CegarLoopForPetriNet]: 271 programPoint places, 107 predicate places. [2021-11-09 10:37:54,387 INFO L470 AbstractCegarLoop]: Abstraction has has 378 places, 507 transitions, 4427 flow [2021-11-09 10:37:54,388 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 278.5) internal successors, (1114), 4 states have internal predecessors, (1114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:37:54,388 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-09 10:37:54,388 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] [2021-11-09 10:37:54,388 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-11-09 10:37:54,388 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-09 10:37:54,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 10:37:54,389 INFO L85 PathProgramCache]: Analyzing trace with hash 1709169581, now seen corresponding path program 1 times [2021-11-09 10:37:54,389 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 10:37:54,389 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [324023455] [2021-11-09 10:37:54,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 10:37:54,390 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 10:37:54,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 10:37:54,506 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 10:37:54,506 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 10:37:54,506 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [324023455] [2021-11-09 10:37:54,506 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [324023455] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 10:37:54,507 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 10:37:54,507 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-09 10:37:54,507 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2069903159] [2021-11-09 10:37:54,508 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-09 10:37:54,508 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 10:37:54,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-09 10:37:54,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-11-09 10:37:54,511 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 243 out of 308 [2021-11-09 10:37:54,513 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 378 places, 507 transitions, 4427 flow. Second operand has 7 states, 7 states have (on average 248.28571428571428) internal successors, (1738), 7 states have internal predecessors, (1738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:37:54,513 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-09 10:37:54,514 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 243 of 308 [2021-11-09 10:37:54,514 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand