./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/weaver/parallel-ticket-6.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 47ea0209 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00bc447a-d3a6-4ada-878a-84fb3e6cb418/bin/uautomizer-AkOaLMaTGY/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00bc447a-d3a6-4ada-878a-84fb3e6cb418/bin/uautomizer-AkOaLMaTGY/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00bc447a-d3a6-4ada-878a-84fb3e6cb418/bin/uautomizer-AkOaLMaTGY/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00bc447a-d3a6-4ada-878a-84fb3e6cb418/bin/uautomizer-AkOaLMaTGY/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/parallel-ticket-6.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00bc447a-d3a6-4ada-878a-84fb3e6cb418/bin/uautomizer-AkOaLMaTGY/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00bc447a-d3a6-4ada-878a-84fb3e6cb418/bin/uautomizer-AkOaLMaTGY --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash c7095f70ba7104a12a93da2a0b557c5b5c6880d23caa33c7c2fd19334f4cb537 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 07:43:26,563 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 07:43:26,567 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 07:43:26,632 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 07:43:26,633 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 07:43:26,639 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 07:43:26,641 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 07:43:26,646 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 07:43:26,649 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 07:43:26,656 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 07:43:26,657 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 07:43:26,659 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 07:43:26,660 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 07:43:26,663 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 07:43:26,666 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 07:43:26,671 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 07:43:26,674 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 07:43:26,675 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 07:43:26,678 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 07:43:26,688 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 07:43:26,691 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 07:43:26,693 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 07:43:26,697 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 07:43:26,698 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 07:43:26,709 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 07:43:26,710 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 07:43:26,710 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 07:43:26,713 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 07:43:26,713 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 07:43:26,715 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 07:43:26,716 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 07:43:26,717 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 07:43:26,720 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 07:43:26,721 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 07:43:26,724 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 07:43:26,724 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 07:43:26,725 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 07:43:26,726 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 07:43:26,726 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 07:43:26,727 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 07:43:26,729 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 07:43:26,730 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00bc447a-d3a6-4ada-878a-84fb3e6cb418/bin/uautomizer-AkOaLMaTGY/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-11-07 07:43:26,782 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 07:43:26,783 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 07:43:26,784 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-07 07:43:26,784 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-07 07:43:26,793 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-07 07:43:26,793 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-07 07:43:26,794 INFO L138 SettingsManager]: * Use SBE=true [2021-11-07 07:43:26,794 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 07:43:26,794 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-07 07:43:26,795 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 07:43:26,796 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-07 07:43:26,796 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 07:43:26,796 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 07:43:26,797 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 07:43:26,797 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 07:43:26,797 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-07 07:43:26,797 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 07:43:26,798 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 07:43:26,798 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 07:43:26,798 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 07:43:26,798 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 07:43:26,799 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 07:43:26,799 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 07:43:26,799 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 07:43:26,799 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 07:43:26,800 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 07:43:26,800 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-07 07:43:26,800 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 07:43:26,800 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-07 07:43:26,802 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-07 07:43:26,802 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 07:43:26,803 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 07:43:26,803 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_00bc447a-d3a6-4ada-878a-84fb3e6cb418/bin/uautomizer-AkOaLMaTGY/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00bc447a-d3a6-4ada-878a-84fb3e6cb418/bin/uautomizer-AkOaLMaTGY Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c7095f70ba7104a12a93da2a0b557c5b5c6880d23caa33c7c2fd19334f4cb537 [2021-11-07 07:43:27,170 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 07:43:27,216 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 07:43:27,219 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 07:43:27,220 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 07:43:27,221 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 07:43:27,222 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00bc447a-d3a6-4ada-878a-84fb3e6cb418/bin/uautomizer-AkOaLMaTGY/../../sv-benchmarks/c/weaver/parallel-ticket-6.wvr.c [2021-11-07 07:43:27,310 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00bc447a-d3a6-4ada-878a-84fb3e6cb418/bin/uautomizer-AkOaLMaTGY/data/663414442/f1f5e3b9f5f04abebf52f72a52a90933/FLAGf46389d66 [2021-11-07 07:43:27,872 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 07:43:27,872 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00bc447a-d3a6-4ada-878a-84fb3e6cb418/sv-benchmarks/c/weaver/parallel-ticket-6.wvr.c [2021-11-07 07:43:27,880 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00bc447a-d3a6-4ada-878a-84fb3e6cb418/bin/uautomizer-AkOaLMaTGY/data/663414442/f1f5e3b9f5f04abebf52f72a52a90933/FLAGf46389d66 [2021-11-07 07:43:28,242 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00bc447a-d3a6-4ada-878a-84fb3e6cb418/bin/uautomizer-AkOaLMaTGY/data/663414442/f1f5e3b9f5f04abebf52f72a52a90933 [2021-11-07 07:43:28,248 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 07:43:28,250 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 07:43:28,252 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 07:43:28,252 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 07:43:28,262 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 07:43:28,263 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 07:43:28" (1/1) ... [2021-11-07 07:43:28,264 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@e6553e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:43:28, skipping insertion in model container [2021-11-07 07:43:28,264 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 07:43:28" (1/1) ... [2021-11-07 07:43:28,271 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 07:43:28,314 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 07:43:28,545 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_00bc447a-d3a6-4ada-878a-84fb3e6cb418/sv-benchmarks/c/weaver/parallel-ticket-6.wvr.c[4400,4413] [2021-11-07 07:43:28,550 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 07:43:28,561 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 07:43:28,598 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_00bc447a-d3a6-4ada-878a-84fb3e6cb418/sv-benchmarks/c/weaver/parallel-ticket-6.wvr.c[4400,4413] [2021-11-07 07:43:28,599 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 07:43:28,615 INFO L208 MainTranslator]: Completed translation [2021-11-07 07:43:28,616 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:43:28 WrapperNode [2021-11-07 07:43:28,616 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 07:43:28,617 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 07:43:28,617 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 07:43:28,617 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 07:43:28,626 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:43:28" (1/1) ... [2021-11-07 07:43:28,636 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:43:28" (1/1) ... [2021-11-07 07:43:28,701 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 07:43:28,708 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 07:43:28,708 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 07:43:28,709 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 07:43:28,718 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:43:28" (1/1) ... [2021-11-07 07:43:28,718 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:43:28" (1/1) ... [2021-11-07 07:43:28,723 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:43:28" (1/1) ... [2021-11-07 07:43:28,723 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:43:28" (1/1) ... [2021-11-07 07:43:28,733 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:43:28" (1/1) ... [2021-11-07 07:43:28,736 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:43:28" (1/1) ... [2021-11-07 07:43:28,739 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:43:28" (1/1) ... [2021-11-07 07:43:28,743 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 07:43:28,744 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 07:43:28,744 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 07:43:28,744 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 07:43:28,745 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:43:28" (1/1) ... [2021-11-07 07:43:28,754 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 07:43:28,770 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00bc447a-d3a6-4ada-878a-84fb3e6cb418/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:43:28,793 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00bc447a-d3a6-4ada-878a-84fb3e6cb418/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-07 07:43:28,799 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00bc447a-d3a6-4ada-878a-84fb3e6cb418/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-07 07:43:28,843 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-11-07 07:43:28,843 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-11-07 07:43:28,843 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-11-07 07:43:28,843 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-11-07 07:43:28,843 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-11-07 07:43:28,844 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-11-07 07:43:28,844 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2021-11-07 07:43:28,844 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2021-11-07 07:43:28,844 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-07 07:43:28,844 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2021-11-07 07:43:28,844 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2021-11-07 07:43:28,845 INFO L130 BoogieDeclarations]: Found specification of procedure thread6 [2021-11-07 07:43:28,845 INFO L138 BoogieDeclarations]: Found implementation of procedure thread6 [2021-11-07 07:43:28,845 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 07:43:28,845 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-07 07:43:28,845 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-11-07 07:43:28,845 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-11-07 07:43:28,845 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 07:43:28,846 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 07:43:28,846 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-07 07:43:28,846 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-07 07:43:28,848 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-11-07 07:43:29,811 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 07:43:29,811 INFO L299 CfgBuilder]: Removed 20 assume(true) statements. [2021-11-07 07:43:29,815 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 07:43:29 BoogieIcfgContainer [2021-11-07 07:43:29,815 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 07:43:29,817 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 07:43:29,818 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 07:43:29,822 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 07:43:29,822 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 07:43:28" (1/3) ... [2021-11-07 07:43:29,824 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58e723dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 07:43:29, skipping insertion in model container [2021-11-07 07:43:29,824 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:43:28" (2/3) ... [2021-11-07 07:43:29,825 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58e723dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 07:43:29, skipping insertion in model container [2021-11-07 07:43:29,825 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 07:43:29" (3/3) ... [2021-11-07 07:43:29,827 INFO L111 eAbstractionObserver]: Analyzing ICFG parallel-ticket-6.wvr.c [2021-11-07 07:43:29,834 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-11-07 07:43:29,834 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 07:43:29,834 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-07 07:43:29,835 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-11-07 07:43:29,945 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork4_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:43:29,945 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork4_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:43:29,946 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork4_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:43:29,946 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork4_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:43:29,946 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork4_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:43:29,946 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork4_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:43:29,947 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork4_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:43:29,947 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork4_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:43:29,947 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork4_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:43:29,947 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork4_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:43:29,947 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork4_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:43:29,947 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork4_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:43:29,949 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:43:29,949 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:43:29,950 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:43:29,950 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:43:29,950 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:43:29,950 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:43:29,952 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:43:29,955 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:43:29,955 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:43:29,956 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:43:29,957 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:43:29,957 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:43:29,957 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:43:29,958 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:43:29,958 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:43:29,958 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:43:29,958 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:43:29,958 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:43:29,959 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:43:29,959 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:43:29,959 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:43:29,959 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:43:29,960 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:43:29,960 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:43:29,960 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork5_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:43:29,960 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork5_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:43:29,961 WARN L322 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork5_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:43:29,961 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork5_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:43:29,961 WARN L322 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork5_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:43:29,961 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork5_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:43:29,961 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork5_#t~post10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:43:29,962 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork5_#t~post10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:43:29,962 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork5_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:43:29,963 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork5_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:43:29,963 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork5_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:43:29,963 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork5_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:43:29,964 WARN L322 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork1_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:43:29,964 WARN L322 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork1_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:43:29,965 WARN L322 ript$VariableManager]: TermVariabe thread5Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:43:29,965 WARN L322 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:43:29,965 WARN L322 ript$VariableManager]: TermVariabe thread5Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:43:29,966 WARN L322 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:43:29,966 WARN L322 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork1_#t~post12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:43:29,966 WARN L322 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork1_#t~post12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:43:29,966 WARN L322 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:43:29,966 WARN L322 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:43:29,967 WARN L322 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:43:29,968 WARN L322 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:43:29,968 WARN L322 ript$VariableManager]: TermVariabe |thread6Thread1of1ForFork3_#t~post13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:43:29,968 WARN L322 ript$VariableManager]: TermVariabe |thread6Thread1of1ForFork3_#t~post13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:43:29,969 WARN L322 ript$VariableManager]: TermVariabe |thread6Thread1of1ForFork3_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:43:29,969 WARN L322 ript$VariableManager]: TermVariabe thread6Thread1of1ForFork3_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:43:29,969 WARN L322 ript$VariableManager]: TermVariabe |thread6Thread1of1ForFork3_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:43:29,969 WARN L322 ript$VariableManager]: TermVariabe thread6Thread1of1ForFork3_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:43:29,969 WARN L322 ript$VariableManager]: TermVariabe |thread6Thread1of1ForFork3_#t~post14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:43:29,970 WARN L322 ript$VariableManager]: TermVariabe |thread6Thread1of1ForFork3_#t~post14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:43:29,970 WARN L322 ript$VariableManager]: TermVariabe |thread6Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:43:29,970 WARN L322 ript$VariableManager]: TermVariabe |thread6Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:43:29,971 WARN L322 ript$VariableManager]: TermVariabe |thread6Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:43:29,971 WARN L322 ript$VariableManager]: TermVariabe |thread6Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:43:29,976 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:43:29,977 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:43:29,977 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:43:29,977 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:43:29,978 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:43:29,978 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:43:29,981 WARN L322 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork1_#t~post12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:43:29,982 WARN L322 ript$VariableManager]: TermVariabe thread5Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:43:29,985 WARN L322 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:43:29,985 WARN L322 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork1_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:43:29,986 WARN L322 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:43:29,986 WARN L322 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:43:29,989 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:43:29,990 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:43:29,990 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:43:29,990 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:43:29,991 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:43:29,997 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:43:29,999 WARN L322 ript$VariableManager]: TermVariabe |thread6Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:43:30,000 WARN L322 ript$VariableManager]: TermVariabe thread6Thread1of1ForFork3_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:43:30,000 WARN L322 ript$VariableManager]: TermVariabe |thread6Thread1of1ForFork3_#t~post13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:43:30,000 WARN L322 ript$VariableManager]: TermVariabe |thread6Thread1of1ForFork3_#t~post14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:43:30,000 WARN L322 ript$VariableManager]: TermVariabe |thread6Thread1of1ForFork3_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:43:30,001 WARN L322 ript$VariableManager]: TermVariabe |thread6Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:43:30,003 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork4_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:43:30,004 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork4_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:43:30,004 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork4_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:43:30,004 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork4_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:43:30,004 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork4_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:43:30,004 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork4_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:43:30,008 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork5_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:43:30,008 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork5_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:43:30,009 WARN L322 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork5_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:43:30,009 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork5_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:43:30,009 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork5_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:43:30,009 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork5_#t~post10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:43:30,044 INFO L148 ThreadInstanceAdder]: Constructed 6 joinOtherThreadTransitions. [2021-11-07 07:43:30,117 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 07:43:30,126 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-07 07:43:30,126 INFO L340 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2021-11-07 07:43:30,155 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 197 places, 180 transitions, 408 flow [2021-11-07 07:43:30,318 INFO L129 PetriNetUnfolder]: 2/174 cut-off events. [2021-11-07 07:43:30,319 INFO L130 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2021-11-07 07:43:30,325 INFO L84 FinitePrefix]: Finished finitePrefix Result has 199 conditions, 174 events. 2/174 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 80 event pairs, 0 based on Foata normal form. 0/171 useless extension candidates. Maximal degree in co-relation 134. Up to 2 conditions per place. [2021-11-07 07:43:30,325 INFO L82 GeneralOperation]: Start removeDead. Operand has 197 places, 180 transitions, 408 flow [2021-11-07 07:43:30,337 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 175 places, 158 transitions, 352 flow [2021-11-07 07:43:30,413 INFO L129 PetriNetUnfolder]: 2/157 cut-off events. [2021-11-07 07:43:30,413 INFO L130 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2021-11-07 07:43:30,413 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-07 07:43:30,414 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] [2021-11-07 07:43:30,415 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2021-11-07 07:43:30,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:43:30,422 INFO L85 PathProgramCache]: Analyzing trace with hash -427132956, now seen corresponding path program 1 times [2021-11-07 07:43:30,431 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:43:30,431 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [269602388] [2021-11-07 07:43:30,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:43:30,433 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:43:31,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:43:31,990 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:43:31,991 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:43:31,992 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [269602388] [2021-11-07 07:43:31,993 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [269602388] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 07:43:31,993 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:43:31,993 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-11-07 07:43:31,995 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1238530262] [2021-11-07 07:43:32,008 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-07 07:43:32,008 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:43:32,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-07 07:43:32,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2021-11-07 07:43:32,032 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 156 out of 180 [2021-11-07 07:43:32,041 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 175 places, 158 transitions, 352 flow. Second operand has 11 states, 11 states have (on average 157.72727272727272) internal successors, (1735), 11 states have internal predecessors, (1735), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:43:32,042 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-07 07:43:32,042 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 156 of 180 [2021-11-07 07:43:32,044 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-07 07:43:32,796 INFO L129 PetriNetUnfolder]: 328/1087 cut-off events. [2021-11-07 07:43:32,797 INFO L130 PetriNetUnfolder]: For 37/37 co-relation queries the response was YES. [2021-11-07 07:43:32,809 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1647 conditions, 1087 events. 328/1087 cut-off events. For 37/37 co-relation queries the response was YES. Maximal size of possible extension queue 89. Compared 6802 event pairs, 175 based on Foata normal form. 3/1005 useless extension candidates. Maximal degree in co-relation 1500. Up to 275 conditions per place. [2021-11-07 07:43:32,821 INFO L132 encePairwiseOnDemand]: 161/180 looper letters, 18 selfloop transitions, 17 changer transitions 12/182 dead transitions. [2021-11-07 07:43:32,822 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 186 places, 182 transitions, 494 flow [2021-11-07 07:43:32,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-07 07:43:32,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-11-07 07:43:32,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1923 transitions. [2021-11-07 07:43:32,896 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8902777777777777 [2021-11-07 07:43:32,897 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1923 transitions. [2021-11-07 07:43:32,897 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1923 transitions. [2021-11-07 07:43:32,903 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-07 07:43:32,906 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1923 transitions. [2021-11-07 07:43:32,919 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 160.25) internal successors, (1923), 12 states have internal predecessors, (1923), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:43:32,935 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 180.0) internal successors, (2340), 13 states have internal predecessors, (2340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:43:32,939 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 180.0) internal successors, (2340), 13 states have internal predecessors, (2340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:43:32,941 INFO L186 Difference]: Start difference. First operand has 175 places, 158 transitions, 352 flow. Second operand 12 states and 1923 transitions. [2021-11-07 07:43:32,943 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 186 places, 182 transitions, 494 flow [2021-11-07 07:43:32,950 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 174 places, 182 transitions, 470 flow, removed 0 selfloop flow, removed 12 redundant places. [2021-11-07 07:43:32,958 INFO L242 Difference]: Finished difference. Result has 179 places, 165 transitions, 419 flow [2021-11-07 07:43:32,961 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=180, PETRI_DIFFERENCE_MINUEND_FLOW=324, PETRI_DIFFERENCE_MINUEND_PLACES=163, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=156, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=145, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=419, PETRI_PLACES=179, PETRI_TRANSITIONS=165} [2021-11-07 07:43:32,962 INFO L334 CegarLoopForPetriNet]: 175 programPoint places, 4 predicate places. [2021-11-07 07:43:32,963 INFO L470 AbstractCegarLoop]: Abstraction has has 179 places, 165 transitions, 419 flow [2021-11-07 07:43:32,965 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 157.72727272727272) internal successors, (1735), 11 states have internal predecessors, (1735), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:43:32,965 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-07 07:43:32,966 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] [2021-11-07 07:43:32,966 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-07 07:43:32,967 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2021-11-07 07:43:32,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:43:32,968 INFO L85 PathProgramCache]: Analyzing trace with hash -1635856602, now seen corresponding path program 2 times [2021-11-07 07:43:32,968 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:43:32,968 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1522621435] [2021-11-07 07:43:32,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:43:32,969 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:43:33,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:43:33,394 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:43:33,397 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:43:33,398 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1522621435] [2021-11-07 07:43:33,398 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1522621435] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 07:43:33,398 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:43:33,399 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-07 07:43:33,399 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [475228923] [2021-11-07 07:43:33,401 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-07 07:43:33,402 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:43:33,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-07 07:43:33,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2021-11-07 07:43:33,407 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 143 out of 180 [2021-11-07 07:43:33,410 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 179 places, 165 transitions, 419 flow. Second operand has 7 states, 7 states have (on average 147.57142857142858) internal successors, (1033), 7 states have internal predecessors, (1033), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:43:33,410 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-07 07:43:33,410 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 143 of 180 [2021-11-07 07:43:33,411 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-07 07:43:54,019 INFO L129 PetriNetUnfolder]: 78805/135431 cut-off events. [2021-11-07 07:43:54,019 INFO L130 PetriNetUnfolder]: For 15078/26861 co-relation queries the response was YES. [2021-11-07 07:43:55,361 INFO L84 FinitePrefix]: Finished finitePrefix Result has 272836 conditions, 135431 events. 78805/135431 cut-off events. For 15078/26861 co-relation queries the response was YES. Maximal size of possible extension queue 7925. Compared 1448385 event pairs, 26308 based on Foata normal form. 1598/127886 useless extension candidates. Maximal degree in co-relation 272820. Up to 29089 conditions per place. [2021-11-07 07:43:56,657 INFO L132 encePairwiseOnDemand]: 164/180 looper letters, 60 selfloop transitions, 27 changer transitions 0/220 dead transitions. [2021-11-07 07:43:56,657 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 178 places, 220 transitions, 709 flow [2021-11-07 07:43:56,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-07 07:43:56,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-11-07 07:43:56,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1089 transitions. [2021-11-07 07:43:56,665 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8642857142857143 [2021-11-07 07:43:56,666 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1089 transitions. [2021-11-07 07:43:56,666 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1089 transitions. [2021-11-07 07:43:56,669 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-07 07:43:56,669 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1089 transitions. [2021-11-07 07:43:56,674 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 155.57142857142858) internal successors, (1089), 7 states have internal predecessors, (1089), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:43:56,679 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 180.0) internal successors, (1440), 8 states have internal predecessors, (1440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:43:56,681 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 180.0) internal successors, (1440), 8 states have internal predecessors, (1440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:43:56,681 INFO L186 Difference]: Start difference. First operand has 179 places, 165 transitions, 419 flow. Second operand 7 states and 1089 transitions. [2021-11-07 07:43:56,681 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 178 places, 220 transitions, 709 flow [2021-11-07 07:43:56,697 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 172 places, 220 transitions, 684 flow, removed 6 selfloop flow, removed 6 redundant places. [2021-11-07 07:43:56,703 INFO L242 Difference]: Finished difference. Result has 174 places, 189 transitions, 558 flow [2021-11-07 07:43:56,704 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=180, PETRI_DIFFERENCE_MINUEND_FLOW=400, PETRI_DIFFERENCE_MINUEND_PLACES=166, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=165, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=150, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=558, PETRI_PLACES=174, PETRI_TRANSITIONS=189} [2021-11-07 07:43:56,705 INFO L334 CegarLoopForPetriNet]: 175 programPoint places, -1 predicate places. [2021-11-07 07:43:56,705 INFO L470 AbstractCegarLoop]: Abstraction has has 174 places, 189 transitions, 558 flow [2021-11-07 07:43:56,707 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 147.57142857142858) internal successors, (1033), 7 states have internal predecessors, (1033), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:43:56,707 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-07 07:43:56,707 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] [2021-11-07 07:43:56,708 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-07 07:43:56,708 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2021-11-07 07:43:56,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:43:56,709 INFO L85 PathProgramCache]: Analyzing trace with hash 1359308240, now seen corresponding path program 3 times [2021-11-07 07:43:56,710 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:43:56,710 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2086715273] [2021-11-07 07:43:56,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:43:56,711 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:43:56,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:43:57,281 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:43:57,281 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:43:57,282 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2086715273] [2021-11-07 07:43:57,283 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2086715273] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 07:43:57,283 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:43:57,284 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-11-07 07:43:57,284 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1132450563] [2021-11-07 07:43:57,285 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-07 07:43:57,286 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:43:57,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-07 07:43:57,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2021-11-07 07:43:57,293 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 156 out of 180 [2021-11-07 07:43:57,297 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 174 places, 189 transitions, 558 flow. Second operand has 11 states, 11 states have (on average 157.72727272727272) internal successors, (1735), 11 states have internal predecessors, (1735), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:43:57,298 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-07 07:43:57,298 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 156 of 180 [2021-11-07 07:43:57,298 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-07 07:44:05,365 INFO L129 PetriNetUnfolder]: 27232/56067 cut-off events. [2021-11-07 07:44:05,365 INFO L130 PetriNetUnfolder]: For 26018/40979 co-relation queries the response was YES. [2021-11-07 07:44:05,832 INFO L84 FinitePrefix]: Finished finitePrefix Result has 135227 conditions, 56067 events. 27232/56067 cut-off events. For 26018/40979 co-relation queries the response was YES. Maximal size of possible extension queue 4165. Compared 657114 event pairs, 8097 based on Foata normal form. 96/50448 useless extension candidates. Maximal degree in co-relation 133041. Up to 15108 conditions per place. [2021-11-07 07:44:06,298 INFO L132 encePairwiseOnDemand]: 166/180 looper letters, 25 selfloop transitions, 21 changer transitions 3/208 dead transitions. [2021-11-07 07:44:06,298 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 183 places, 208 transitions, 756 flow [2021-11-07 07:44:06,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-07 07:44:06,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-11-07 07:44:06,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1600 transitions. [2021-11-07 07:44:06,308 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8888888888888888 [2021-11-07 07:44:06,308 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1600 transitions. [2021-11-07 07:44:06,308 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1600 transitions. [2021-11-07 07:44:06,310 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-07 07:44:06,310 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1600 transitions. [2021-11-07 07:44:06,316 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 160.0) internal successors, (1600), 10 states have internal predecessors, (1600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:44:06,321 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 180.0) internal successors, (1980), 11 states have internal predecessors, (1980), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:44:06,322 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 180.0) internal successors, (1980), 11 states have internal predecessors, (1980), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:44:06,323 INFO L186 Difference]: Start difference. First operand has 174 places, 189 transitions, 558 flow. Second operand 10 states and 1600 transitions. [2021-11-07 07:44:06,323 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 183 places, 208 transitions, 756 flow [2021-11-07 07:44:06,339 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 181 places, 208 transitions, 752 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-11-07 07:44:06,344 INFO L242 Difference]: Finished difference. Result has 186 places, 200 transitions, 711 flow [2021-11-07 07:44:06,345 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=180, PETRI_DIFFERENCE_MINUEND_FLOW=554, PETRI_DIFFERENCE_MINUEND_PLACES=172, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=189, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=173, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=711, PETRI_PLACES=186, PETRI_TRANSITIONS=200} [2021-11-07 07:44:06,345 INFO L334 CegarLoopForPetriNet]: 175 programPoint places, 11 predicate places. [2021-11-07 07:44:06,345 INFO L470 AbstractCegarLoop]: Abstraction has has 186 places, 200 transitions, 711 flow [2021-11-07 07:44:06,346 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 157.72727272727272) internal successors, (1735), 11 states have internal predecessors, (1735), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:44:06,346 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-07 07:44:06,347 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] [2021-11-07 07:44:06,347 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-07 07:44:06,347 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2021-11-07 07:44:06,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:44:06,348 INFO L85 PathProgramCache]: Analyzing trace with hash -1669946648, now seen corresponding path program 4 times [2021-11-07 07:44:06,349 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:44:06,349 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [162860260] [2021-11-07 07:44:06,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:44:06,349 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:44:06,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:44:06,517 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:44:06,518 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:44:06,518 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [162860260] [2021-11-07 07:44:06,518 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [162860260] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 07:44:06,518 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:44:06,519 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-07 07:44:06,519 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [185737447] [2021-11-07 07:44:06,519 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-07 07:44:06,520 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:44:06,520 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-07 07:44:06,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-07 07:44:06,523 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 143 out of 180 [2021-11-07 07:44:06,524 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 186 places, 200 transitions, 711 flow. Second operand has 8 states, 8 states have (on average 147.0) internal successors, (1176), 8 states have internal predecessors, (1176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:44:06,525 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-07 07:44:06,525 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 143 of 180 [2021-11-07 07:44:06,525 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand